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@ 04c915da:3dfbecc9
2025-05-20 15:50:48For years American bitcoin miners have argued for more efficient and free energy markets. It benefits everyone if our energy infrastructure is as efficient and robust as possible. Unfortunately, broken incentives have led to increased regulation throughout the sector, incentivizing less efficient energy sources such as solar and wind at the detriment of more efficient alternatives.
The result has been less reliable energy infrastructure for all Americans and increased energy costs across the board. This naturally has a direct impact on bitcoin miners: increased energy costs make them less competitive globally.
Bitcoin mining represents a global energy market that does not require permission to participate. Anyone can plug a mining computer into power and internet to get paid the current dynamic market price for their work in bitcoin. Using cellphone or satellite internet, these mines can be located anywhere in the world, sourcing the cheapest power available.
Absent of regulation, bitcoin mining naturally incentivizes the build out of highly efficient and robust energy infrastructure. Unfortunately that world does not exist and burdensome regulations remain the biggest threat for US based mining businesses. Jurisdictional arbitrage gives miners the option of moving to a friendlier country but that naturally comes with its own costs.
Enter AI. With the rapid development and release of AI tools comes the requirement of running massive datacenters for their models. Major tech companies are scrambling to secure machines, rack space, and cheap energy to run full suites of AI enabled tools and services. The most valuable and powerful tech companies in America have stumbled into an accidental alliance with bitcoin miners: THE NEED FOR CHEAP AND RELIABLE ENERGY.
Our government is corrupt. Money talks. These companies will push for energy freedom and it will greatly benefit us all.
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@ d61f3bc5:0da6ef4a
2025-05-06 01:37:28I remember the first gathering of Nostr devs two years ago in Costa Rica. We were all psyched because Nostr appeared to solve the problem of self-sovereign online identity and decentralized publishing. The protocol seemed well-suited for textual content, but it wasn't really designed to handle binary files, like images or video.
The Problem
When I publish a note that contains an image link, the note itself is resilient thanks to Nostr, but if the hosting service disappears or takes my image down, my note will be broken forever. We need a way to publish binary data without relying on a single hosting provider.
We were discussing how there really was no reliable solution to this problem even outside of Nostr. Peer-to-peer attempts like IPFS simply didn't work; they were hopelessly slow and unreliable in practice. Torrents worked for popular files like movies, but couldn't be relied on for general file hosting.
Awesome Blossom
A year later, I attended the Sovereign Engineering demo day in Madeira, organized by Pablo and Gigi. Many projects were presented over a three hour demo session that day, but one really stood out for me.
Introduced by hzrd149 and Stu Bowman, Blossom blew my mind because it showed how we can solve complex problems easily by simply relying on the fact that Nostr exists. Having an open user directory, with the corresponding social graph and web of trust is an incredible building block.
Since we can easily look up any user on Nostr and read their profile metadata, we can just get them to simply tell us where their files are stored. This, combined with hash-based addressing (borrowed from IPFS), is all we need to solve our problem.
How Blossom Works
The Blossom protocol (Blobs Stored Simply on Mediaservers) is formally defined in a series of BUDs (Blossom Upgrade Documents). Yes, Blossom is the most well-branded protocol in the history of protocols. Feel free to refer to the spec for details, but I will provide a high level explanation here.
The main idea behind Blossom can be summarized in three points:
- Users specify which media server(s) they use via their public Blossom settings published on Nostr;
- All files are uniquely addressable via hashes;
- If an app fails to load a file from the original URL, it simply goes to get it from the server(s) specified in the user's Blossom settings.
Just like Nostr itself, the Blossom protocol is dead-simple and it works!
Let's use this image as an example:
If you look at the URL for this image, you will notice that it looks like this:
blossom.primal.net/c1aa63f983a44185d039092912bfb7f33adcf63ed3cae371ebe6905da5f688d0.jpg
All Blossom URLs follow this format:
[server]/[file-hash].[extension]
The file hash is important because it uniquely identifies the file in question. Apps can use it to verify that the file they received is exactly the file they requested. It also gives us the ability to reliably get the same file from a different server.
Nostr users declare which media server(s) they use by publishing their Blossom settings. If I store my files on Server A, and they get removed, I can simply upload them to Server B, update my public Blossom settings, and all Blossom-capable apps will be able to find them at the new location. All my existing notes will continue to display media content without any issues.
Blossom Mirroring
Let's face it, re-uploading files to another server after they got removed from the original server is not the best user experience. Most people wouldn't have the backups of all the files, and/or the desire to do this work.
This is where Blossom's mirroring feature comes handy. In addition to the primary media server, a Blossom user can set one one or more mirror servers. Under this setup, every time a file is uploaded to the primary server the Nostr app issues a mirror request to the primary server, directing it to copy the file to all the specified mirrors. This way there is always a copy of all content on multiple servers and in case the primary becomes unavailable, Blossom-capable apps will automatically start loading from the mirror.
Mirrors are really easy to setup (you can do it in two clicks in Primal) and this arrangement ensures robust media handling without any central points of failure. Note that you can use professional media hosting services side by side with self-hosted backup servers that anyone can run at home.
Using Blossom Within Primal
Blossom is natively integrated into the entire Primal stack and enabled by default. If you are using Primal 2.2 or later, you don't need to do anything to enable Blossom, all your media uploads are blossoming already.
To enhance user privacy, all Primal apps use the "/media" endpoint per BUD-05, which strips all metadata from uploaded files before they are saved and optionally mirrored to other Blossom servers, per user settings. You can use any Blossom server as your primary media server in Primal, as well as setup any number of mirrors:
## Conclusion
For such a simple protocol, Blossom gives us three major benefits:
- Verifiable authenticity. All Nostr notes are always signed by the note author. With Blossom, the signed note includes a unique hash for each referenced media file, making it impossible to falsify.
- File hosting redundancy. Having multiple live copies of referenced media files (via Blossom mirroring) greatly increases the resiliency of media content published on Nostr.
- Censorship resistance. Blossom enables us to seamlessly switch media hosting providers in case of censorship.
Thanks for reading; and enjoy! 🌸
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@ 51bbb15e:b77a2290
2025-05-21 00:24:36Yeah, I’m sure everything in the file is legit. 👍 Let’s review the guard witness testimony…Oh wait, they weren’t at their posts despite 24/7 survellience instructions after another Epstein “suicide” attempt two weeks earlier. Well, at least the video of the suicide is in the file? Oh wait, a techical glitch. Damn those coincidences!
At this point, the Trump administration has zero credibility with me on anything related to the Epstein case and his clients. I still suspect the administration is using the Epstein files as leverage to keep a lot of RINOs in line, whereas they’d be sabotaging his agenda at every turn otherwise. However, I just don’t believe in ends-justify-the-means thinking. It’s led almost all of DC to toss out every bit of the values they might once have had.
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@ ece127e2:745bab9c
2025-05-20 18:59:11vamos a ver que tal
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@ 21335073:a244b1ad
2025-05-09 13:56:57Someone asked for my thoughts, so I’ll share them thoughtfully. I’m not here to dictate how to promote Nostr—I’m still learning about it myself. While I’m not new to Nostr, freedom tech is a newer space for me. I’m skilled at advocating for topics I deeply understand, but freedom tech isn’t my expertise, so take my words with a grain of salt. Nothing I say is set in stone.
Those who need Nostr the most are the ones most vulnerable to censorship on other platforms right now. Reaching them requires real-time awareness of global issues and the dynamic relationships between governments and tech providers, which can shift suddenly. Effective Nostr promoters must grasp this and adapt quickly.
The best messengers are people from or closely tied to these at-risk regions—those who truly understand the local political and cultural dynamics. They can connect with those in need when tensions rise. Ideal promoters are rational, trustworthy, passionate about Nostr, but above all, dedicated to amplifying people’s voices when it matters most.
Forget influencers, corporate-backed figures, or traditional online PR—it comes off as inauthentic, corny, desperate and forced. Nostr’s promotion should be grassroots and organic, driven by a few passionate individuals who believe in Nostr and the communities they serve.
The idea that “people won’t join Nostr due to lack of reach” is nonsense. Everyone knows X’s “reach” is mostly with bots. If humans want real conversations, Nostr is the place. X is great for propaganda, but Nostr is for the authentic voices of the people.
Those spreading Nostr must be so passionate they’re willing to onboard others, which is time-consuming but rewarding for the right person. They’ll need to make Nostr and onboarding a core part of who they are. I see no issue with that level of dedication. I’ve been known to get that way myself at times. It’s fun for some folks.
With love, I suggest not adding Bitcoin promotion with Nostr outreach. Zaps already integrate that element naturally. (Still promote within the Bitcoin ecosystem, but this is about reaching vulnerable voices who needed Nostr yesterday.)
To promote Nostr, forget conventional strategies. “Influencers” aren’t the answer. “Influencers” are not the future. A trusted local community member has real influence—reach them. Connect with people seeking Nostr’s benefits but lacking the technical language to express it. This means some in the Nostr community might need to step outside of the Bitcoin bubble, which is uncomfortable but necessary. Thank you in advance to those who are willing to do that.
I don’t know who is paid to promote Nostr, if anyone. This piece isn’t shade. But it’s exhausting to see innocent voices globally silenced on corporate platforms like X while Nostr exists. Last night, I wondered: how many more voices must be censored before the Nostr community gets uncomfortable and thinks creatively to reach the vulnerable?
A warning: the global need for censorship-resistant social media is undeniable. If Nostr doesn’t make itself known, something else will fill that void. Let’s start this conversation.
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@ 52b4a076:e7fad8bd
2025-05-03 21:54:45Introduction
Me and Fishcake have been working on infrastructure for Noswhere and Nostr.build. Part of this involves processing a large amount of Nostr events for features such as search, analytics, and feeds.
I have been recently developing
nosdex
v3, a newer version of the Noswhere scraper that is designed for maximum performance and fault tolerance using FoundationDB (FDB).Fishcake has been working on a processing system for Nostr events to use with NB, based off of Cloudflare (CF) Pipelines, which is a relatively new beta product. This evening, we put it all to the test.
First preparations
We set up a new CF Pipelines endpoint, and I implemented a basic importer that took data from the
nosdex
database. This was quite slow, as it did HTTP requests synchronously, but worked as a good smoke test.Asynchronous indexing
I implemented a high-contention queue system designed for highly parallel indexing operations, built using FDB, that supports: - Fully customizable batch sizes - Per-index queues - Hundreds of parallel consumers - Automatic retry logic using lease expiration
When the scraper first gets an event, it will process it and eventually write it to the blob store and FDB. Each new event is appended to the event log.
On the indexing side, a
Queuer
will read the event log, and batch events (usually 2K-5K events) into one work job. This work job contains: - A range in the log to index - Which target this job is intended for - The size of the job and some other metadataEach job has an associated leasing state, which is used to handle retries and prioritization, and ensure no duplication of work.
Several
Worker
s monitor the index queue (up to 128) and wait for new jobs that are available to lease.Once a suitable job is found, the worker acquires a lease on the job and reads the relevant events from FDB and the blob store.
Depending on the indexing type, the job will be processed in one of a number of ways, and then marked as completed or returned for retries.
In this case, the event is also forwarded to CF Pipelines.
Trying it out
The first attempt did not go well. I found a bug in the high-contention indexer that led to frequent transaction conflicts. This was easily solved by correcting an incorrectly set parameter.
We also found there were other issues in the indexer, such as an insufficient amount of threads, and a suspicious decrease in the speed of the
Queuer
during processing of queued jobs.Along with fixing these issues, I also implemented other optimizations, such as deprioritizing
Worker
DB accesses, and increasing the batch size.To fix the degraded
Queuer
performance, I ran the backfill job by itself, and then started indexing after it had completed.Bottlenecks, bottlenecks everywhere
After implementing these fixes, there was an interesting problem: The DB couldn't go over 80K reads per second. I had encountered this limit during load testing for the scraper and other FDB benchmarks.
As I suspected, this was a client thread limitation, as one thread seemed to be using high amounts of CPU. To overcome this, I created a new client instance for each
Worker
.After investigating, I discovered that the Go FoundationDB client cached the database connection. This meant all attempts to create separate DB connections ended up being useless.
Using
OpenWithConnectionString
partially resolved this issue. (This also had benefits for service-discovery based connection configuration.)To be able to fully support multi-threading, I needed to enabled the FDB multi-client feature. Enabling it also allowed easier upgrades across DB versions, as FDB clients are incompatible across versions:
FDB_NETWORK_OPTION_EXTERNAL_CLIENT_LIBRARY="/lib/libfdb_c.so"
FDB_NETWORK_OPTION_CLIENT_THREADS_PER_VERSION="16"
Breaking the 100K/s reads barrier
After implementing support for the multi-threaded client, we were able to get over 100K reads per second.
You may notice after the restart (gap) the performance dropped. This was caused by several bugs: 1. When creating the CF Pipelines endpoint, we did not specify a region. The automatically selected region was far away from the server. 2. The amount of shards were not sufficient, so we increased them. 3. The client overloaded a few HTTP/2 connections with too many requests.
I implemented a feature to assign each
Worker
its own HTTP client, fixing the 3rd issue. We also moved the entire storage region to West Europe to be closer to the servers.After these changes, we were able to easily push over 200K reads/s, mostly limited by missing optimizations:
It's shards all the way down
While testing, we also noticed another issue: At certain times, a pipeline would get overloaded, stalling requests for seconds at a time. This prevented all forward progress on the
Worker
s.We solved this by having multiple pipelines: A primary pipeline meant to be for standard load, with moderate batching duration and less shards, and high-throughput pipelines with more shards.
Each
Worker
is assigned a pipeline on startup, and if one pipeline stalls, other workers can continue making progress and saturate the DB.The stress test
After making sure everything was ready for the import, we cleared all data, and started the import.
The entire import lasted 20 minutes between 01:44 UTC and 02:04 UTC, reaching a peak of: - 0.25M requests per second - 0.6M keys read per second - 140MB/s reads from DB - 2Gbps of network throughput
FoundationDB ran smoothly during this test, with: - Read times under 2ms - Zero conflicting transactions - No overloaded servers
CF Pipelines held up well, delivering batches to R2 without any issues, while reaching its maximum possible throughput.
Finishing notes
Me and Fishcake have been building infrastructure around scaling Nostr, from media, to relays, to content indexing. We consistently work on improving scalability, resiliency and stability, even outside these posts.
Many things, including what you see here, are already a part of Nostr.build, Noswhere and NFDB, and many other changes are being implemented every day.
If you like what you are seeing, and want to integrate it, get in touch. :)
If you want to support our work, you can zap this post, or register for nostr.land and nostr.build today.
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@ a39d19ec:3d88f61e
2025-04-22 12:44:42Die Debatte um Migration, Grenzsicherung und Abschiebungen wird in Deutschland meist emotional geführt. Wer fordert, dass illegale Einwanderer abgeschoben werden, sieht sich nicht selten dem Vorwurf des Rassismus ausgesetzt. Doch dieser Vorwurf ist nicht nur sachlich unbegründet, sondern verkehrt die Realität ins Gegenteil: Tatsächlich sind es gerade diejenigen, die hinter jeder Forderung nach Rechtssicherheit eine rassistische Motivation vermuten, die selbst in erster Linie nach Hautfarbe, Herkunft oder Nationalität urteilen.
Das Recht steht über Emotionen
Deutschland ist ein Rechtsstaat. Das bedeutet, dass Regeln nicht nach Bauchgefühl oder politischer Stimmungslage ausgelegt werden können, sondern auf klaren gesetzlichen Grundlagen beruhen müssen. Einer dieser Grundsätze ist in Artikel 16a des Grundgesetzes verankert. Dort heißt es:
„Auf Absatz 1 [Asylrecht] kann sich nicht berufen, wer aus einem Mitgliedstaat der Europäischen Gemeinschaften oder aus einem anderen Drittstaat einreist, in dem die Anwendung des Abkommens über die Rechtsstellung der Flüchtlinge und der Europäischen Menschenrechtskonvention sichergestellt ist.“
Das bedeutet, dass jeder, der über sichere Drittstaaten nach Deutschland einreist, keinen Anspruch auf Asyl hat. Wer dennoch bleibt, hält sich illegal im Land auf und unterliegt den geltenden Regelungen zur Rückführung. Die Forderung nach Abschiebungen ist daher nichts anderes als die Forderung nach der Einhaltung von Recht und Gesetz.
Die Umkehrung des Rassismusbegriffs
Wer einerseits behauptet, dass das deutsche Asyl- und Aufenthaltsrecht strikt durchgesetzt werden soll, und andererseits nicht nach Herkunft oder Hautfarbe unterscheidet, handelt wertneutral. Diejenigen jedoch, die in einer solchen Forderung nach Rechtsstaatlichkeit einen rassistischen Unterton sehen, projizieren ihre eigenen Denkmuster auf andere: Sie unterstellen, dass die Debatte ausschließlich entlang ethnischer, rassistischer oder nationaler Kriterien geführt wird – und genau das ist eine rassistische Denkweise.
Jemand, der illegale Einwanderung kritisiert, tut dies nicht, weil ihn die Herkunft der Menschen interessiert, sondern weil er den Rechtsstaat respektiert. Hingegen erkennt jemand, der hinter dieser Kritik Rassismus wittert, offenbar in erster Linie die „Rasse“ oder Herkunft der betreffenden Personen und reduziert sie darauf.
Finanzielle Belastung statt ideologischer Debatte
Neben der rechtlichen gibt es auch eine ökonomische Komponente. Der deutsche Wohlfahrtsstaat basiert auf einem Solidarprinzip: Die Bürger zahlen in das System ein, um sich gegenseitig in schwierigen Zeiten zu unterstützen. Dieser Wohlstand wurde über Generationen hinweg von denjenigen erarbeitet, die hier seit langem leben. Die Priorität liegt daher darauf, die vorhandenen Mittel zuerst unter denjenigen zu verteilen, die durch Steuern, Sozialabgaben und Arbeit zum Erhalt dieses Systems beitragen – nicht unter denen, die sich durch illegale Einreise und fehlende wirtschaftliche Eigenleistung in das System begeben.
Das ist keine ideologische Frage, sondern eine rein wirtschaftliche Abwägung. Ein Sozialsystem kann nur dann nachhaltig funktionieren, wenn es nicht unbegrenzt belastet wird. Würde Deutschland keine klaren Regeln zur Einwanderung und Abschiebung haben, würde dies unweigerlich zur Überlastung des Sozialstaates führen – mit negativen Konsequenzen für alle.
Sozialpatriotismus
Ein weiterer wichtiger Aspekt ist der Schutz der Arbeitsleistung jener Generationen, die Deutschland nach dem Zweiten Weltkrieg mühsam wieder aufgebaut haben. Während oft betont wird, dass die Deutschen moralisch kein Erbe aus der Zeit vor 1945 beanspruchen dürfen – außer der Verantwortung für den Holocaust –, ist es umso bedeutsamer, das neue Erbe nach 1945 zu respektieren, das auf Fleiß, Disziplin und harter Arbeit beruht. Der Wiederaufbau war eine kollektive Leistung deutscher Menschen, deren Früchte nicht bedenkenlos verteilt werden dürfen, sondern vorrangig denjenigen zugutekommen sollten, die dieses Fundament mitgeschaffen oder es über Generationen mitgetragen haben.
Rechtstaatlichkeit ist nicht verhandelbar
Wer sich für eine konsequente Abschiebepraxis ausspricht, tut dies nicht aus rassistischen Motiven, sondern aus Respekt vor der Rechtsstaatlichkeit und den wirtschaftlichen Grundlagen des Landes. Der Vorwurf des Rassismus in diesem Kontext ist daher nicht nur falsch, sondern entlarvt eine selektive Wahrnehmung nach rassistischen Merkmalen bei denjenigen, die ihn erheben.
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@ c9badfea:610f861a
2025-05-20 19:49:20- Install Sky Map (it's free and open source)
- Launch the app and tap Accept, then tap OK
- When asked to access the device's location, tap While Using The App
- Tap somewhere on the screen to activate the menu, then tap ⁝ and select Settings
- Disable Send Usage Statistics
- Return to the main screen and enjoy stargazing!
ℹ️ Use the 🔍 icon in the upper toolbar to search for a specific celestial body, or tap the 👁️ icon to activate night mode
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@ 30b99916:3cc6e3fe
2025-05-20 23:00:17For all you COVID COWARDS out there perhaps you can redeem yourself by supporting America's Frontline Docters
History will show that the defeat of COVID tyranny wasn’t granted – it was won, case by case, voice by voice – and your support for America’s Frontline Doctors played an important role in this fight.
America 2020 – our nation faced a moment of truth.
Public health soldiers working for deep-state globalists unleashed tyranny in response to a virus - to terrorize us and dismantle our Constitution.
When I look back on the forces arrayed against us, I’m amazed more people did NOT stand up for their rights:
_Government agencies...hospitals...universities...corporations..._
...the state acting as our “savior” ...
...and Big Tech as the enforcer...
All joined forces to impose sweeping authoritarian mandates under the banners of public health and settled science.
_They declared freedom and liberty non-essential._
_They silenced, fired, shamed, and canceled ANYONE who dared question them._
ANYONE who resisted the masking, the lockdowns, the forced mRNA injections, are HEROS.
It angers me just thinking about what happened next.
Everyday Americans lost their livelihoods.
Parents watched as their children deteriorated after being locked out of their schools.
Doctors – some of the best in the country – were hunted down by their own licensing boards for practicing ACTUAL medicine instead of government-approved pseudoscience.
I hate to admit it, but tyranny triumphed.
The people had surrendered so much liberty that I didn’t recognize the nation our founders had forged.
I’m sure you didn’t either.
But while we can’t undo the past, we can make sure we don’t repeat it.
That is why America’s Frontline Doctors and I – with you alongside us – have been fighting back.
And together, we’ve been doing it case by case, supporting legal challenges against these unconstitutional, totalitarian mandates.
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@ 2b998b04:86727e47
2025-05-20 22:15:45I didn’t take a course on “prompt engineering.” I didn’t memorize secret formulas or chase viral hacks.
What I did do was treat it like a system.
Just like in software:
Write → Compile → Test → Debug → Repeat
With AI, the loop feels just as familiar:
Prompt → Output → Edit → Re-prompt
That’s not magic. That’s engineering.
When someone asked me, “How can you trust AI for anything serious?”\ I told them: “Same way we trust the internet — not because the network’s reliable, but because the protocol is.”
AI is no different. The key is building systems around it:
-
Multiple models if needed
-
Human-in-the-loop verification
-
Layered editing and real discernment
It’s Not That Different From Other Engineering
Once you stop treating AI like a black box and start treating it like a tool, the whole experience changes.
The prompt isn’t a spell. It’s a spec.\ The response isn’t a prophecy. It’s a build.\ And your discernment? That’s your QA layer.
What I Actually Use It For
-
Brainstorming titles and refining headlines
-
Drafting posts that I shape and filter
-
Running content through for edge cases
-
Exploring theological or philosophical questions
And yes — I want it to be useful. I am building to make a living, not just to make noise. But I don’t lead with monetization. I lead with clarity — and build toward sustainability.
Final Thought
If you’re waiting for a course to teach you how to “do AI,” maybe just start by building something real. Test it. Edit it. Use it again. That’s engineering.
Shoutout to Dr. C (ChatGPT) for helping me articulate this.
If this post sparked anything for you, zap a few sats ⚡ — every bit helps me keep building with conviction.
-
-
@ a39d19ec:3d88f61e
2025-03-18 17:16:50Nun da das deutsche Bundesregime den Ruin Deutschlands beschlossen hat, der sehr wahrscheinlich mit dem Werkzeug des Geld druckens "finanziert" wird, kamen mir so viele Gedanken zur Geldmengenausweitung, dass ich diese für einmal niedergeschrieben habe.
Die Ausweitung der Geldmenge führt aus klassischer wirtschaftlicher Sicht immer zu Preissteigerungen, weil mehr Geld im Umlauf auf eine begrenzte Menge an Gütern trifft. Dies lässt sich in mehreren Schritten analysieren:
1. Quantitätstheorie des Geldes
Die klassische Gleichung der Quantitätstheorie des Geldes lautet:
M • V = P • Y
wobei:
- M die Geldmenge ist,
- V die Umlaufgeschwindigkeit des Geldes,
- P das Preisniveau,
- Y die reale Wirtschaftsleistung (BIP).Wenn M steigt und V sowie Y konstant bleiben, muss P steigen – also Inflation entstehen.
2. Gütermenge bleibt begrenzt
Die Menge an real produzierten Gütern und Dienstleistungen wächst meist nur langsam im Vergleich zur Ausweitung der Geldmenge. Wenn die Geldmenge schneller steigt als die Produktionsgütermenge, führt dies dazu, dass mehr Geld für die gleiche Menge an Waren zur Verfügung steht – die Preise steigen.
3. Erwartungseffekte und Spekulation
Wenn Unternehmen und Haushalte erwarten, dass mehr Geld im Umlauf ist, da eine zentrale Planung es so wollte, können sie steigende Preise antizipieren. Unternehmen erhöhen ihre Preise vorab, und Arbeitnehmer fordern höhere Löhne. Dies kann eine sich selbst verstärkende Spirale auslösen.
4. Internationale Perspektive
Eine erhöhte Geldmenge kann die Währung abwerten, wenn andere Länder ihre Geldpolitik stabil halten. Eine schwächere Währung macht Importe teurer, was wiederum Preissteigerungen antreibt.
5. Kritik an der reinen Geldmengen-Theorie
Der Vollständigkeit halber muss erwähnt werden, dass die meisten modernen Ökonomen im Staatsauftrag argumentieren, dass Inflation nicht nur von der Geldmenge abhängt, sondern auch von der Nachfrage nach Geld (z. B. in einer Wirtschaftskrise). Dennoch zeigt die historische Erfahrung, dass eine unkontrollierte Geldmengenausweitung langfristig immer zu Preissteigerungen führt, wie etwa in der Hyperinflation der Weimarer Republik oder in Simbabwe.
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@ 7bdef7be:784a5805
2025-04-02 12:12:12We value sovereignty, privacy and security when accessing online content, using several tools to achieve this, like open protocols, open OSes, open software products, Tor and VPNs.
The problem
Talking about our social presence, we can manually build up our follower list (social graph), pick a Nostr client that is respectful of our preferences on what to show and how, but with the standard following mechanism, our main feed is public, so everyone can actually snoop what we are interested in, and what is supposable that we read daily.
The solution
Nostr has a simple solution for this necessity: encrypted lists. Lists are what they appear, a collection of people or interests (but they can also group much other stuff, see NIP-51). So we can create lists with contacts that we don't have in our main social graph; these lists can be used primarily to create dedicated feeds, but they could have other uses, for example, related to monitoring. The interesting thing about lists is that they can also be encrypted, so unlike the basic following list, which is always public, we can hide the lists' content from others. The implications are obvious: we can not only have a more organized way to browse content, but it is also really private one.
One might wonder what use can really be made of private lists; here are some examples:
- Browse “can't miss” content from users I consider a priority;
- Supervise competitors or adversarial parts;
- Monitor sensible topics (tags);
- Following someone without being publicly associated with them, as this may be undesirable;
The benefits in terms of privacy as usual are not only related to the casual, or programmatic, observer, but are also evident when we think of how many bots scan our actions to profile us.
The current state
Unfortunately, lists are not widely supported by Nostr clients, and encrypted support is a rarity. Often the excuse to not implement them is that they are harder to develop, since they require managing the encryption stuff (NIP-44). Nevertheless, developers have an easier option to start offering private lists: give the user the possibility to simply mark them as local-only, and never push them to the relays. Even if the user misses the sync feature, this is sufficient to create a private environment.
To date, as far as I know, the best client with list management is Gossip, which permits to manage both encrypted and local-only lists.
Beg your Nostr client to implement private lists!
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@ 3f770d65:7a745b24
2025-05-20 21:14:28I’m Derek Ross, and I’m all-in on Nostr.
I started the Grow Nostr Initiative to help more people discover what makes Nostr so powerful: ✅ You own your identity ✅ You choose your social graph and algorithms ✅ You aren't locked into any single app or platform ✅ You can post, stream, chat, and build, all without gatekeepers
What we’re doing with Grow Nostr Initiative: 🌱 Hosting local meetups and mini-conferences to onboard people face-to-face 📚 Creating educational materials and guides to demystify how Nostr works 🧩 Helping businesses and creators understand how they can plug into Nostr (running media servers, relays, and using key management tools)
I believe Nostr is the foundation of a more open internet. It’s still early, but we’re already seeing incredible apps for social, blogging, podcasting, livestreaming, and more. And the best part is that they're all interoperable, censorship-resistant, and built on open standards. Nostr is the world's largest bitcoin economy by transaction volume and I truly believe that the purple pill helps the orange pill go down. Meaning, growing Nostr will also grow Bitcoin adoption.
If you’ve been curious about Nostr or are building something on it, or let’s talk. Whether you're just getting started or you're already deep in the ecosystem, I'm here to answer questions, share what I’ve learned, and hear your ideas. Check out https://nostrapps.com to find your next social decentralized experience.
Ask Me Anything about GNI, Nostr, Bitcoin, the upcoming #NosVegas event at the Bitcoin Conference next week, etc.!
– Derek Ross 🌐 https://grownostr.org npub18ams6ewn5aj2n3wt2qawzglx9mr4nzksxhvrdc4gzrecw7n5tvjqctp424
https://stacker.news/items/984689
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@ 04c915da:3dfbecc9
2025-05-20 15:50:22There is something quietly rebellious about stacking sats. In a world obsessed with instant gratification, choosing to patiently accumulate Bitcoin, one sat at a time, feels like a middle finger to the hype machine. But to do it right, you have got to stay humble. Stack too hard with your head in the clouds, and you will trip over your own ego before the next halving even hits.
Small Wins
Stacking sats is not glamorous. Discipline. Stacking every day, week, or month, no matter the price, and letting time do the heavy lifting. Humility lives in that consistency. You are not trying to outsmart the market or prove you are the next "crypto" prophet. Just a regular person, betting on a system you believe in, one humble stack at a time. Folks get rekt chasing the highs. They ape into some shitcoin pump, shout about it online, then go silent when they inevitably get rekt. The ones who last? They stack. Just keep showing up. Consistency. Humility in action. Know the game is long, and you are not bigger than it.
Ego is Volatile
Bitcoin’s swings can mess with your head. One day you are up 20%, feeling like a genius and the next down 30%, questioning everything. Ego will have you panic selling at the bottom or over leveraging the top. Staying humble means patience, a true bitcoin zen. Do not try to "beat” Bitcoin. Ride it. Stack what you can afford, live your life, and let compounding work its magic.
Simplicity
There is a beauty in how stacking sats forces you to rethink value. A sat is worth less than a penny today, but every time you grab a few thousand, you plant a seed. It is not about flaunting wealth but rather building it, quietly, without fanfare. That mindset spills over. Cut out the noise: the overpriced coffee, fancy watches, the status games that drain your wallet. Humility is good for your soul and your stack. I have a buddy who has been stacking since 2015. Never talks about it unless you ask. Lives in a decent place, drives an old truck, and just keeps stacking. He is not chasing clout, he is chasing freedom. That is the vibe: less ego, more sats, all grounded in life.
The Big Picture
Stack those sats. Do it quietly, do it consistently, and do not let the green days puff you up or the red days break you down. Humility is the secret sauce, it keeps you grounded while the world spins wild. In a decade, when you look back and smile, it will not be because you shouted the loudest. It will be because you stayed the course, one sat at a time. \ \ Stay Humble and Stack Sats. 🫡
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@ 0d97beae:c5274a14
2025-01-11 16:52:08This article hopes to complement the article by Lyn Alden on YouTube: https://www.youtube.com/watch?v=jk_HWmmwiAs
The reason why we have broken money
Before the invention of key technologies such as the printing press and electronic communications, even such as those as early as morse code transmitters, gold had won the competition for best medium of money around the world.
In fact, it was not just gold by itself that became money, rulers and world leaders developed coins in order to help the economy grow. Gold nuggets were not as easy to transact with as coins with specific imprints and denominated sizes.
However, these modern technologies created massive efficiencies that allowed us to communicate and perform services more efficiently and much faster, yet the medium of money could not benefit from these advancements. Gold was heavy, slow and expensive to move globally, even though requesting and performing services globally did not have this limitation anymore.
Banks took initiative and created derivatives of gold: paper and electronic money; these new currencies allowed the economy to continue to grow and evolve, but it was not without its dark side. Today, no currency is denominated in gold at all, money is backed by nothing and its inherent value, the paper it is printed on, is worthless too.
Banks and governments eventually transitioned from a money derivative to a system of debt that could be co-opted and controlled for political and personal reasons. Our money today is broken and is the cause of more expensive, poorer quality goods in the economy, a larger and ever growing wealth gap, and many of the follow-on problems that have come with it.
Bitcoin overcomes the "transfer of hard money" problem
Just like gold coins were created by man, Bitcoin too is a technology created by man. Bitcoin, however is a much more profound invention, possibly more of a discovery than an invention in fact. Bitcoin has proven to be unbreakable, incorruptible and has upheld its ability to keep its units scarce, inalienable and counterfeit proof through the nature of its own design.
Since Bitcoin is a digital technology, it can be transferred across international borders almost as quickly as information itself. It therefore severely reduces the need for a derivative to be used to represent money to facilitate digital trade. This means that as the currency we use today continues to fare poorly for many people, bitcoin will continue to stand out as hard money, that just so happens to work as well, functionally, along side it.
Bitcoin will also always be available to anyone who wishes to earn it directly; even China is unable to restrict its citizens from accessing it. The dollar has traditionally become the currency for people who discover that their local currency is unsustainable. Even when the dollar has become illegal to use, it is simply used privately and unofficially. However, because bitcoin does not require you to trade it at a bank in order to use it across borders and across the web, Bitcoin will continue to be a viable escape hatch until we one day hit some critical mass where the world has simply adopted Bitcoin globally and everyone else must adopt it to survive.
Bitcoin has not yet proven that it can support the world at scale. However it can only be tested through real adoption, and just as gold coins were developed to help gold scale, tools will be developed to help overcome problems as they arise; ideally without the need for another derivative, but if necessary, hopefully with one that is more neutral and less corruptible than the derivatives used to represent gold.
Bitcoin blurs the line between commodity and technology
Bitcoin is a technology, it is a tool that requires human involvement to function, however it surprisingly does not allow for any concentration of power. Anyone can help to facilitate Bitcoin's operations, but no one can take control of its behaviour, its reach, or its prioritisation, as it operates autonomously based on a pre-determined, neutral set of rules.
At the same time, its built-in incentive mechanism ensures that people do not have to operate bitcoin out of the good of their heart. Even though the system cannot be co-opted holistically, It will not stop operating while there are people motivated to trade their time and resources to keep it running and earn from others' transaction fees. Although it requires humans to operate it, it remains both neutral and sustainable.
Never before have we developed or discovered a technology that could not be co-opted and used by one person or faction against another. Due to this nature, Bitcoin's units are often described as a commodity; they cannot be usurped or virtually cloned, and they cannot be affected by political biases.
The dangers of derivatives
A derivative is something created, designed or developed to represent another thing in order to solve a particular complication or problem. For example, paper and electronic money was once a derivative of gold.
In the case of Bitcoin, if you cannot link your units of bitcoin to an "address" that you personally hold a cryptographically secure key to, then you very likely have a derivative of bitcoin, not bitcoin itself. If you buy bitcoin on an online exchange and do not withdraw the bitcoin to a wallet that you control, then you legally own an electronic derivative of bitcoin.
Bitcoin is a new technology. It will have a learning curve and it will take time for humanity to learn how to comprehend, authenticate and take control of bitcoin collectively. Having said that, many people all over the world are already using and relying on Bitcoin natively. For many, it will require for people to find the need or a desire for a neutral money like bitcoin, and to have been burned by derivatives of it, before they start to understand the difference between the two. Eventually, it will become an essential part of what we regard as common sense.
Learn for yourself
If you wish to learn more about how to handle bitcoin and avoid derivatives, you can start by searching online for tutorials about "Bitcoin self custody".
There are many options available, some more practical for you, and some more practical for others. Don't spend too much time trying to find the perfect solution; practice and learn. You may make mistakes along the way, so be careful not to experiment with large amounts of your bitcoin as you explore new ideas and technologies along the way. This is similar to learning anything, like riding a bicycle; you are sure to fall a few times, scuff the frame, so don't buy a high performance racing bike while you're still learning to balance.
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@ 6ad3e2a3:c90b7740
2025-05-20 13:49:50I’ve written about MSTR twice already, https://www.chrisliss.com/p/mstr and https://www.chrisliss.com/p/mstr-part-2, but I want to focus on legendary short seller James Chanos’ current trade wherein he buys bitcoin (via ETF) and shorts MSTR, in essence to “be like Mike” Saylor who sells MSTR shares at the market and uses them to add bitcoin to the company’s balance sheet. After all, if it’s good enough for Saylor, why shouldn’t everyone be doing it — shorting a company whose stock price is more than 2x its bitcoin holdings and using the proceeds to buy the bitcoin itself?
Saylor himself has said selling shares at 2x NAV (net asset value) to buy bitcoin is like selling dollars for two dollars each, and Chanos has apparently decided to get in while the getting (market cap more than 2x net asset value) is good. If the price of bitcoin moons, sending MSTR’s shares up, you are more than hedged in that event, too. At least that’s the theory.
The problem with this bet against MSTR’s mNAV, i.e., you are betting MSTR’s market cap will converge 1:1 toward its NAV in the short and medium term is this trade does not exist in a vacuum. Saylor has described how his ATM’s (at the market) sales of shares are accretive in BTC per share because of this very premium they carry. Yes, we’ll dilute your shares of the company, but because we’re getting you 2x the bitcoin per share, you are getting an ever smaller slice of an ever bigger overall pie, and the pie is growing 2x faster than your slice is reducing. (I https://www.chrisliss.com/p/mstr how this works in my first post.)
But for this accretion to continue, there must be a constant supply of “greater fools” to pony up for the infinitely printable shares which contain only half their value in underlying bitcoin. Yes, those shares will continue to accrete more BTC per share, but only if there are more fools willing to make this trade in the future. So will there be a constant supply of such “fools” to keep fueling MSTR’s mNAV multiple indefinitely?
Yes, there will be in my opinion because you have to look at the trade from the prospective fools’ perspective. Those “fools” are not trading bitcoin for MSTR, they are trading their dollars, selling other equities to raise them maybe, but in the end it’s a dollars for shares trade. They are not selling bitcoin for them.
You might object that those same dollars could buy bitcoin instead, so they are surely trading the opportunity cost of buying bitcoin for them, but if only 5-10 percent of the market (or less) is buying bitcoin itself, the bucket in which which those “fools” reside is the entire non-bitcoin-buying equity market. (And this is not considering the even larger debt market which Saylor has yet to tap in earnest.)
So for those 90-95 percent who do not and are not presently planning to own bitcoin itself, is buying MSTR a fool’s errand, so to speak? Not remotely. If MSTR shares are infinitely printable ATM, they are still less so than the dollar and other fiat currencies. And MSTR shares are backed 2:1 by bitcoin itself, while the fiat currencies are backed by absolutely nothing. So if you hold dollars or euros, trading them for MSTR shares is an errand more sage than foolish.
That’s why this trade (buying BTC and shorting MSTR) is so dangerous. Not only are there many people who won’t buy BTC buying MSTR, there are many funds and other investment entities who are only able to buy MSTR.
Do you want to get BTC at 1:1 with the 5-10 percent or MSTR backed 2:1 with the 90-95 percent. This is a bit like medical tests that have a 95 percent accuracy rate for an asymptomatic disease that only one percent of the population has. If someone tests positive, it’s more likely to be a false one than an indication he has the disease*. The accuracy rate, even at 19:1, is subservient to the size of the respective populations.
At some point this will no longer be the case, but so long as the understanding of bitcoin is not widespread, so long as the dollar is still the unit of account, the “greater fools” buying MSTR are still miles ahead of the greatest fools buying neither, and the stock price and mNAV should only increase.
. . .
One other thought: it’s more work to play defense than offense because the person on offense knows where he’s going, and the defender can only react to him once he moves. Similarly, Saylor by virtue of being the issuer of the shares knows when more will come online while Chanos and other short sellers are borrowing them to sell in reaction to Saylor’s strategy. At any given moment, Saylor can pause anytime, choosing to issue convertible debt or preferred shares with which to buy more bitcoin, and the shorts will not be given advance notice.
If the price runs, and there is no ATM that week because Saylor has stopped on a dime, so to speak, the shorts will be left having to scramble to change directions and buy the shares back to cover. Their momentum might be in the wrong direction, though, and like Allen Iverson breaking ankles with a crossover, Saylor might trigger a massive short squeeze, rocketing the share price ever higher. That’s why he actually welcomes Chanos et al trying this copycat strategy — it becomes the fuel for outsized gains.
For that reason, news that Chanos is shorting MSTR has not shaken my conviction, though there are other more pertinent https://www.chrisliss.com/p/mstr-part-2 with MSTR, of which one should be aware. And as always, do your own due diligence before investing in anything.
* To understand this, consider a population of 100,000, with one percent having a disease. That means 1,000 have it, 99,000 do not. If the test is 95 percent accurate, and everyone is tested, 950 of the 1,000 will test positive (true positives), 50 who have it will test negative (false negatives.) Of the positives, 95 percent of 99,000 (94,050) will test negative (true negatives) and five percent (4,950) will test positive (false positives). That means 4,950 out of 5,900 positives (84%) will be false.
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@ 37fe9853:bcd1b039
2025-01-11 15:04:40yoyoaa
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@ 62033ff8:e4471203
2025-01-11 15:00:24收录的内容中 kind=1的部分,实话说 质量不高。 所以我增加了kind=30023 长文的article,但是更新的太少,多个relays 的服务器也没有多少长文。
所有搜索nostr如果需要产生价值,需要有高质量的文章和新闻。 而且现在有很多机器人的文章充满着浪费空间的作用,其他作用都用不上。
https://www.duozhutuan.com 目前放的是给搜索引擎提供搜索的原材料。没有做UI给人类浏览。所以看上去是粗糙的。 我并没有打算去做一个发microblog的 web客户端,那类的客户端太多了。
我觉得nostr社区需要解决的还是应用。如果仅仅是microblog 感觉有点够呛
幸运的是npub.pro 建站这样的,我觉得有点意思。
yakihonne 智能widget 也有意思
我做的TaskQ5 我自己在用了。分布式的任务系统,也挺好的。
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@ da8b7de1:c0164aee
2025-05-20 19:30:10TVA SMR-építési engedélykérelem Clinch Riverben
A Tennessee Valley Authority (TVA) benyújtotta az első kis moduláris reaktor (SMR) építési engedélykérelmet az Egyesült Államokban, a Clinch River-i telephelyre. Ez a lépés mérföldkő az amerikai nukleáris ipar számára, hiszen a BWRX-300 típusú SMR-rel a TVA célja a szén-dioxid-mentes energiatermelés bővítése és az innovatív nukleáris technológia bevezetése.
ČEZ új nukleáris telephelyet jelölt ki Csehországban
A cseh ČEZ energetikai vállalat kijelölte a Tušimice-i telephelyet egy új atomerőmű számára, ahol várhatóan kis moduláris reaktorokat (SMR) telepítenek. Ez a lépés segíti az országot az energiafüggetlenség és a szénalapú energiatermelés kivezetése felé vezető úton.
Urenco USA új dúsító kaszkádot indított
Az Urenco USA New Mexicóban elindította új gázcentrifuga kaszkádját, amely 15%-kal növeli az amerikai dúsított urán kapacitást. Ez kulcsfontosságú az orosz uránimporttól való függetlenedés és az amerikai atomerőművek ellátásbiztonsága szempontjából.
Fiatal szakemberek sürgetik a nukleáris energia központi szerepét Európában
Európai fiatal nukleáris szakemberek nyílt levélben hívták fel a döntéshozók figyelmét arra, hogy a nukleáris energia kapjon központi szerepet a kontinens dekarbonizációs stratégiájában. Kiemelték a kutatás-fejlesztés, a befektetési környezet javítása és a társadalmi elfogadottság növelésének fontosságát.
Zeno Power 50 millió dolláros befektetést szerzett
Az amerikai Zeno Power startup 50 millió dolláros befektetést jelentett be nukleáris akkumulátorok fejlesztésére, amelyek extrém környezetekben – például az űrben vagy tenger alatt – biztosítanak megbízható energiát. A cég célja, hogy 2027-re kereskedelmi forgalomba hozza első rendszereit.
További globális nukleáris fejlemények
Több ország – például India, Kína, Belgium, Kanada, Brazília – is új nukleáris projekteket jelentett be, miközben a nemzetközi konferenciák az ellátási láncok megerősítését és a nukleáris kapacitások bővítését helyezik előtérbe.
Hivatkozások
- tva.com
- en.wikipedia.org/wiki/ČEZ_Group
- urencousa.com
- zenopower.com
- fisa-euradwaste2025.ncbj.gov.pl
- world-nuclear.org
- nucnet.org
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@ 04c915da:3dfbecc9
2025-05-16 17:12:05One of the most common criticisms leveled against nostr is the perceived lack of assurance when it comes to data storage. Critics argue that without a centralized authority guaranteeing that all data is preserved, important information will be lost. They also claim that running a relay will become prohibitively expensive. While there is truth to these concerns, they miss the mark. The genius of nostr lies in its flexibility, resilience, and the way it harnesses human incentives to ensure data availability in practice.
A nostr relay is simply a server that holds cryptographically verifiable signed data and makes it available to others. Relays are simple, flexible, open, and require no permission to run. Critics are right that operating a relay attempting to store all nostr data will be costly. What they miss is that most will not run all encompassing archive relays. Nostr does not rely on massive archive relays. Instead, anyone can run a relay and choose to store whatever subset of data they want. This keeps costs low and operations flexible, making relay operation accessible to all sorts of individuals and entities with varying use cases.
Critics are correct that there is no ironclad guarantee that every piece of data will always be available. Unlike bitcoin where data permanence is baked into the system at a steep cost, nostr does not promise that every random note or meme will be preserved forever. That said, in practice, any data perceived as valuable by someone will likely be stored and distributed by multiple entities. If something matters to someone, they will keep a signed copy.
Nostr is the Streisand Effect in protocol form. The Streisand effect is when an attempt to suppress information backfires, causing it to spread even further. With nostr, anyone can broadcast signed data, anyone can store it, and anyone can distribute it. Try to censor something important? Good luck. The moment it catches attention, it will be stored on relays across the globe, copied, and shared by those who find it worth keeping. Data deemed important will be replicated across servers by individuals acting in their own interest.
Nostr’s distributed nature ensures that the system does not rely on a single point of failure or a corporate overlord. Instead, it leans on the collective will of its users. The result is a network where costs stay manageable, participation is open to all, and valuable verifiable data is stored and distributed forever.
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@ df9150e8:4b224b13
2025-05-20 19:16:06Small Business & Bitcoin - Month 1 - April Update
This letter is meant to be a month by month reflection and live interaction of starting and building a bitcoin treasury for your small business. It is my belief that a bitcoin treasury will expand the runway and viability of any profitable cash flowing small business. It is a stealthy and discrete way to extend the value and worth of your small business.
It is becoming more and more obvious that cash on a balance sheet is melting away due to record high inflation rates. A bitcoin treasury is your best weapon against high inflation and it has consistently and reliably outpaced inflation since inception.
Another benefit to a bitcoin treasury is reshaping your mindset around bitcoin being the hurdle rate for your small business. Bitcoin has a 10 year CAGR of 84%. And while that is likely to shrink over the coming 10 years, we still expect it to exceptionally outperform any other treasury asset. With that in mind, you need to look at the outgoing dollar within your business. Any dollar spent that can’t return you better than 84% may be likely best served in your bitcoin treasury.
So the goal of this letter is simple: I will be building an outline and example in real time and month by month on how to build your bitcoin treasury within a small business. I will be detailing the process in these monthly essays for my reflection and your consumption. If you are reading this, you’ve probably seen what Michael Saylor and Strategy have done in the public markets. They have created the playbook for public bitcoin treasury. We are going to detail the process for your average mom and pop business.
The Playbook
To start this writing, I am going to give you the exact methods we will be taking to acquire our bitcoin as well as the exact % and amounts of bitcoin added to the treasury. We are starting on zero. What I mean by that is that as of now we will not be lump summing any cash into bitcoin from our balance sheet. We will likely do that down the road, but not something we are doing today. We are going to start by averaging 10% of monthly profit into bitcoin.
You may think this amount is too conservative. I tend to agree. My plan is to put something together that is repeatable and conservative at the start. We are going to add 10% of profits to a bitcoin balance each month for a few months and evaluate. Our goal is to increase the % allocation after the first few months. We are starting conservative because other businesses (and ours) need to operate without that 10% and make sure we can adapt. Once we’ve done that we slowly continue to increase the allocation until we reach optimal % allocations.
In addition to simply purchasing bitcoin, we’ve switched to a bitcoin back debit card. This means that every transaction (marketing, bill pay) I am getting anywhere from 1% to 1.5% back in bitcoin. While this will be a marginal way to stack bitcoin, every little bit counts and this helps us add to our stack. If we believe that bitcoin has another 10X increase in fiat price over the coming years then this will prove to make everything cheaper in the long run as the bitcoin back we collect will be increasing in value for years to come. What 1.5% is now could end up being 15% off in a few short years. Any small business owner knows that your margins are everything and giving us this edge in our margin is a huge thing for business owners.
Our Treasury
We began stacking mid April so we don’t have a full month of stacking yet. Based on our few weeks of stacking our current treasury as of May 12, 2025 looks like this:
Stacked through purchasing: 905,336 sats = $918
Stacked through bitcoin back card = 183,281 sats = $190.72
Total Bitcoin = 1,088,617 sats = $1,108.72
Important To Note:
Current price of bitcoin when writing = $101,871.10 per coin.
“Sat” is the smallest unit of a bitcoin.
1 million sats = 1% of owning a whole bitcoin
Our Treasury Strategy (Expanded):
Purchasing Bitcoin via business profits
We are starting at what we believe will be the most conservative allocation towards bitcoin that we will have. 10% should affect our (and hopefully most) operating business very little. We are starting in the most conservative way so that other small businesses can see this and hopefully make these very minor but achievable allocations into bitcoin.
Each month I will look at our net profit and then take 10% of it and purchase bitcoin. We will store all of our bitcoin on a multi sig hardware wallet and continue to track the proceeds here publicly.
In the future (as mentioned above) we will continue to raise the % of net profit allocated towards bitcoin. We want to acquire bitcoin as rapidly and violently as possible. We will need a much greater than 10% allocation to do that. We will likely reevaluate after month 3 and see if it is time to increase the % allocation.
This is also a great encouragement to all small businesses to get creative with sales and marketing to boost your bottom line. Since the % allocation is fixed, we have to earn more profit in order to purchase more bitcoin. Obviously, the best way to maximize bitcoin stacked each month is eventually getting to peak % allocation and continuously maximizing and setting new monthly highs with profit in the business.
As much as we love bitcoin, this allows us to spend the bulk of our time focused inward on our business. The more improvements we can make then, in theory, the more bitcoin we should be able to put in our reserves. This is also a great encouragement to business owners to really dig in and slash all waste within the business. What are we paying for/spending money on that is a waste or at the very least non essential to operations. It can also allow us to audit our way of doing things to ensure everything we do is being done in the most efficient way possible. A lean and profitable business is one that can stack more bitcoin.
Getting bitcoin via a bitcoin back debit card:
This is the 2nd way that we will add bitcoin to our balance sheet as a treasury asset. This debit card works just like a reward credit card. We spend money on it and are instantly rewarded with 1% to 1.5% bitcoin back. This bitcoin is added directly to a wallet linked to our debit card and can be withdrawn to the main wallet.
While this will not be our most powerful driver in stacking bitcoin, It will certainly increase our bitcoin holdings over time as opposed to not using it. It kind of works from the opposite end of the spectrum. Purchasing bitcoin through our profits is a great offensive way to buy bitcoin. Getting bitcoin back from our debit card purchase is a great defensive way to stack bitcoin as it decreases our cost of goods sold with every purchase. As we spend on marketing, pay our taxes, upgrade equipment, or sign up for a new subscription that will help the business, we will be earning bitcoin back on all of those purchases making them cheaper than the listed price.
As the bitcoin we get back via debit card rewards goes up in value over the years, everything we purchase using that card is, in theory, getting cheaper.
Borrowed Money
There is also the option of taking on debt for bitcoin which we’ve seen happen rapidly in public markets. Currently, we are not taking on any kind of debt to add to our bitcoin treasury, but that is something we can and will consider as time moves on. It is important to me to begin stacking with our cashflows first. Once we have built up a decent hoard of BTC on our treasury, we would consider taking a loan to purchase bitcoin,
Think of this as an arbitrage opportunity. If you can secure a loan at 6% for an asset that might have a CAGR of 40+% then it would likely be a good move to make as long as you have sufficient cashflows to cover the principal and interest payments on the loan.
As a small business, we don’t have access to the same tools and products that public companies do. So it’s important to ensure we keep a low time preference with any time of borrowing that we may do. While it is always ideal to stack as much bitcoin as possible, ensuring that you are doing so in a responsible and sustainable way is key. You should be able to cover the payments on the loan very easily. If it’s going to constrain cashflow and increase stress and pressure in the business then you are probably borrowing too much. Loan amounts should be in that sweet spot of impactful enough to really boost your bitcoin treasury, but not so heavy that it puts your business in danger.
It’s also important to note that borrowing money isn’t for everyone. If the thought of a loan to purchase bitcoin causes stress, you may be better off just focusing on stacking from your cashflow and improving your bitcoin treasury month in and month out. Just because this has been popularized in the public markets, doesn’t mean that it has to be done on a smaller scale with your small business. It’s simply something to consider when evaluating your bitcoin treasury and how you can increase it’s value in the most accretive ways possible.
For example, Let’s say your company has a net profit of $10,000 per month. You’ve already got a bitcoin treasury valued at $100,000 and you have the opportunity to take on a $30,000 loan at 6% interest. This would automatically boost your treasury by 30% and should be a debt note that is simple and sustainable to pay each month out of your net profits. You would also be able to continue stacking your % allocation each month from your net profit.
The danger of this loan is low in a number of ways. First, the note would be for $30,000 and you have a bitcoin treasury of $130,000. In a worst case scenario, you could liquidate enough bitcoin to payoff the loan and move on. The other substantial way that it’s safe is that you have sufficient cashflow to cover what is likely to be a payment in the $500-$700 range each month depending on the terms. You are only eating into your net profit by 5-7% monthly to begin to pay down the loan.
I'm surely coming from the conservative side when it comes to being a bitcoiner in small business, but I would feel much more comfortable taking a loan once I have a pre established treasury. I would also like for the size of that loan to be smaller than the overall value of my current treasury. So with those parameters set, I’m probably a few months away from even considering a loan to expand the bitcoin on my balance sheet. However, It will be something that I maintain a watchful eye on and would consider it when terms and market conditions seem favorable to make a lump sum buy into bitcoin.
I believe this to be an opportunity within a limited time frame. I think we see bitcoin increase in value by a multiple of 10 over the coming decade. I do think that as time marches on that bitcoin’s CAGR will continue to decrease. It’ll still be attractive, but this is a natural occurrence as an asset matures and becomes larger. Will borrowing money responsibly to purchase bitcoin be a good idea when it is priced at $1,000,000 per coin? Only Time will tell. Until we see more of that price maturation, I tend to think it’s a fairly solid trade off when done responsibly.
In Conclusion:
This writing had a lot of technicality to it to explain what we are doing. In future writings I will continue to share our bitcoin stacking results and thoughts behind how we feel about the previous month. I’ll also get into some more of the business aspects of it and what we are doing to increase efficiency. At the end of the day, everything we do will be in an effort to stack more bitcoin into our treasury.
We will provide an ongoing monthly update and will update again once May has ended.
Talk Soon.
-Caleb Gregory
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@ 1c19eb1a:e22fb0bc
2025-03-21 00:34:10What is #Nostrversity? It's where you can come to learn about all the great tools, clients, and amazing technology that is being built on #Nostr, for Nostr, or utilized by Nostr, presented in an approachable and non-technical format. If you have ever wondered what Blossom, bunker signing, or Nostr Wallet Connect are, how they work, and how you can put them to work to improve your Nostr experience, this is the place you can read about them without needing a computer-science degree ahead of time.
Between writing full-length reviews, which take a fair amount of time to research, test, and draft, I will post shorter articles with the Nostrversity hashtag to provide a Nostr-native resource to help the community understand and utilize the tools our illustrious developers are building. These articles will be much shorter, and more digestible than my full-length reviews. They will also cover some things that may not be quite ready for prime-time, whereas my reviews will continue to focus on Nostr apps that are production-ready.
Keep an eye out, because Nostr Wallet Connect will be the first topic of study. Take your seats, get out your notepads, and follow along to discover how Nostr Wallet Connect is improving Lightning infrastructure. Hint: It's not just for zaps.
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@ 04c915da:3dfbecc9
2025-03-10 23:31:30Bitcoin has always been rooted in freedom and resistance to authority. I get that many of you are conflicted about the US Government stacking but by design we cannot stop anyone from using bitcoin. Many have asked me for my thoughts on the matter, so let’s rip it.
Concern
One of the most glaring issues with the strategic bitcoin reserve is its foundation, built on stolen bitcoin. For those of us who value private property this is an obvious betrayal of our core principles. Rather than proof of work, the bitcoin that seeds this reserve has been taken by force. The US Government should return the bitcoin stolen from Bitfinex and the Silk Road.
Usually stolen bitcoin for the reserve creates a perverse incentive. If governments see a bitcoin as a valuable asset, they will ramp up efforts to confiscate more bitcoin. The precedent is a major concern, and I stand strongly against it, but it should be also noted that governments were already seizing coin before the reserve so this is not really a change in policy.
Ideally all seized bitcoin should be burned, by law. This would align incentives properly and make it less likely for the government to actively increase coin seizures. Due to the truly scarce properties of bitcoin, all burned bitcoin helps existing holders through increased purchasing power regardless. This change would be unlikely but those of us in policy circles should push for it regardless. It would be best case scenario for American bitcoiners and would create a strong foundation for the next century of American leadership.
Optimism
The entire point of bitcoin is that we can spend or save it without permission. That said, it is a massive benefit to not have one of the strongest governments in human history actively trying to ruin our lives.
Since the beginning, bitcoiners have faced horrible regulatory trends. KYC, surveillance, and legal cases have made using bitcoin and building bitcoin businesses incredibly difficult. It is incredibly important to note that over the past year that trend has reversed for the first time in a decade. A strategic bitcoin reserve is a key driver of this shift. By holding bitcoin, the strongest government in the world has signaled that it is not just a fringe technology but rather truly valuable, legitimate, and worth stacking.
This alignment of incentives changes everything. The US Government stacking proves bitcoin’s worth. The resulting purchasing power appreciation helps all of us who are holding coin and as bitcoin succeeds our government receives direct benefit. A beautiful positive feedback loop.
Realism
We are trending in the right direction. A strategic bitcoin reserve is a sign that the state sees bitcoin as an asset worth embracing rather than destroying. That said, there is a lot of work left to be done. We cannot be lulled into complacency, the time to push forward is now, and we cannot take our foot off the gas. We have a seat at the table for the first time ever. Let's make it worth it.
We must protect the right to free usage of bitcoin and other digital technologies. Freedom in the digital age must be taken and defended, through both technical and political avenues. Multiple privacy focused developers are facing long jail sentences for building tools that protect our freedom. These cases are not just legal battles. They are attacks on the soul of bitcoin. We need to rally behind them, fight for their freedom, and ensure the ethos of bitcoin survives this new era of government interest. The strategic reserve is a step in the right direction, but it is up to us to hold the line and shape the future.
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@ 23b0e2f8:d8af76fc
2025-01-08 18:17:52Necessário
- Um Android que você não use mais (a câmera deve estar funcionando).
- Um cartão microSD (opcional, usado apenas uma vez).
- Um dispositivo para acompanhar seus fundos (provavelmente você já tem um).
Algumas coisas que você precisa saber
- O dispositivo servirá como um assinador. Qualquer movimentação só será efetuada após ser assinada por ele.
- O cartão microSD será usado para transferir o APK do Electrum e garantir que o aparelho não terá contato com outras fontes de dados externas após sua formatação. Contudo, é possível usar um cabo USB para o mesmo propósito.
- A ideia é deixar sua chave privada em um dispositivo offline, que ficará desligado em 99% do tempo. Você poderá acompanhar seus fundos em outro dispositivo conectado à internet, como seu celular ou computador pessoal.
O tutorial será dividido em dois módulos:
- Módulo 1 - Criando uma carteira fria/assinador.
- Módulo 2 - Configurando um dispositivo para visualizar seus fundos e assinando transações com o assinador.
No final, teremos:
- Uma carteira fria que também servirá como assinador.
- Um dispositivo para acompanhar os fundos da carteira.
Módulo 1 - Criando uma carteira fria/assinador
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Baixe o APK do Electrum na aba de downloads em https://electrum.org/. Fique à vontade para verificar as assinaturas do software, garantindo sua autenticidade.
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Formate o cartão microSD e coloque o APK do Electrum nele. Caso não tenha um cartão microSD, pule este passo.
- Retire os chips e acessórios do aparelho que será usado como assinador, formate-o e aguarde a inicialização.
- Durante a inicialização, pule a etapa de conexão ao Wi-Fi e rejeite todas as solicitações de conexão. Após isso, você pode desinstalar aplicativos desnecessários, pois precisará apenas do Electrum. Certifique-se de que Wi-Fi, Bluetooth e dados móveis estejam desligados. Você também pode ativar o modo avião.\ (Curiosidade: algumas pessoas optam por abrir o aparelho e danificar a antena do Wi-Fi/Bluetooth, impossibilitando essas funcionalidades.)
- Insira o cartão microSD com o APK do Electrum no dispositivo e instale-o. Será necessário permitir instalações de fontes não oficiais.
- No Electrum, crie uma carteira padrão e gere suas palavras-chave (seed). Anote-as em um local seguro. Caso algo aconteça com seu assinador, essas palavras permitirão o acesso aos seus fundos novamente. (Aqui entra seu método pessoal de backup.)
Módulo 2 - Configurando um dispositivo para visualizar seus fundos e assinando transações com o assinador.
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Criar uma carteira somente leitura em outro dispositivo, como seu celular ou computador pessoal, é uma etapa bastante simples. Para este tutorial, usaremos outro smartphone Android com Electrum. Instale o Electrum a partir da aba de downloads em https://electrum.org/ ou da própria Play Store. (ATENÇÃO: O Electrum não existe oficialmente para iPhone. Desconfie se encontrar algum.)
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Após instalar o Electrum, crie uma carteira padrão, mas desta vez escolha a opção Usar uma chave mestra.
- Agora, no assinador que criamos no primeiro módulo, exporte sua chave pública: vá em Carteira > Detalhes da carteira > Compartilhar chave mestra pública.
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Escaneie o QR gerado da chave pública com o dispositivo de consulta. Assim, ele poderá acompanhar seus fundos, mas sem permissão para movimentá-los.
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Para receber fundos, envie Bitcoin para um dos endereços gerados pela sua carteira: Carteira > Addresses/Coins.
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Para movimentar fundos, crie uma transação no dispositivo de consulta. Como ele não possui a chave privada, será necessário assiná-la com o dispositivo assinador.
- No assinador, escaneie a transação não assinada, confirme os detalhes, assine e compartilhe. Será gerado outro QR, desta vez com a transação já assinada.
- No dispositivo de consulta, escaneie o QR da transação assinada e transmita-a para a rede.
Conclusão
Pontos positivos do setup:
- Simplicidade: Basta um dispositivo Android antigo.
- Flexibilidade: Funciona como uma ótima carteira fria, ideal para holders.
Pontos negativos do setup:
- Padronização: Não utiliza seeds no padrão BIP-39, você sempre precisará usar o electrum.
- Interface: A aparência do Electrum pode parecer antiquada para alguns usuários.
Nesse ponto, temos uma carteira fria que também serve para assinar transações. O fluxo de assinar uma transação se torna: Gerar uma transação não assinada > Escanear o QR da transação não assinada > Conferir e assinar essa transação com o assinador > Gerar QR da transação assinada > Escanear a transação assinada com qualquer outro dispositivo que possa transmiti-la para a rede.
Como alguns devem saber, uma transação assinada de Bitcoin é praticamente impossível de ser fraudada. Em um cenário catastrófico, você pode mesmo que sem internet, repassar essa transação assinada para alguém que tenha acesso à rede por qualquer meio de comunicação. Mesmo que não queiramos que isso aconteça um dia, esse setup acaba por tornar essa prática possível.
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@ 08f96856:ffe59a09
2025-05-15 01:22:34เมื่อพูดถึง Bitcoin Standard หลายคนมักนึกถึงภาพโลกอนาคตที่ทุกคนใช้บิตคอยน์ซื้อกาแฟหรือของใช้ในชีวิตประจำวัน ภาพแบบนั้นดูเหมือนไกลตัวและเป็นไปไม่ได้ในความเป็นจริง หลายคนถึงกับพูดว่า “คงไม่ทันเห็นในช่วงชีวิตนี้หรอก” แต่ในมุมมองของผม Bitcoin Standard อาจไม่ได้เริ่มต้นจากการที่เราจ่ายบิตคอยน์โดยตรงในร้านค้า แต่อาจเริ่มจากบางสิ่งที่เงียบกว่า ลึกกว่า และเกิดขึ้นแล้วในขณะนี้ นั่นคือ การล่มสลายทีละน้อยของระบบเฟียตที่เราใช้กันอยู่
ระบบเงินที่อิงกับอำนาจรัฐกำลังเข้าสู่ช่วงขาลง รัฐบาลทั่วโลกกำลังจมอยู่ในภาระหนี้ระดับประวัติการณ์ แม้แต่ประเทศมหาอำนาจก็เริ่มแสดงสัญญาณของภาวะเสี่ยงผิดนัดชำระหนี้ อัตราเงินเฟ้อกลายเป็นปัญหาเรื้อรังที่ไม่มีท่าทีจะหายไป ธนาคารที่เคยโอนฟรีเริ่มกลับมาคิดค่าธรรมเนียม และประชาชนก็เริ่มรู้สึกถึงการเสื่อมศรัทธาในระบบการเงินดั้งเดิม แม้จะยังพูดกันไม่เต็มเสียงก็ตาม
ในขณะเดียวกัน บิตคอยน์เองก็กำลังพัฒนาแบบเงียบ ๆ เงียบ... แต่ไม่เคยหยุด โดยเฉพาะในระดับ Layer 2 ที่เริ่มแสดงศักยภาพอย่างจริงจัง Lightning Network เป็น Layer 2 ที่เปิดใช้งานมาได้ระยะเวลสหนึ่ง และยังคงมีบทบาทสำคัญที่สุดในระบบนิเวศของบิตคอยน์ มันทำให้การชำระเงินเร็วขึ้น มีต้นทุนต่ำ และไม่ต้องบันทึกทุกธุรกรรมลงบล็อกเชน เครือข่ายนี้กำลังขยายตัวทั้งในแง่ของโหนดและการใช้งานจริงทั่วโลก
ขณะเดียวกัน Layer 2 ทางเลือกอื่นอย่าง Ark Protocol ก็กำลังพัฒนาเพื่อตอบโจทย์ด้านความเป็นส่วนตัวและประสบการณ์ใช้งานที่ง่าย BitVM เปิดแนวทางใหม่ให้บิตคอยน์รองรับ smart contract ได้ในระดับ Turing-complete ซึ่งทำให้เกิดความเป็นไปได้ในกรณีใช้งานอีกมากมาย และเทคโนโลยีที่น่าสนใจอย่าง Taproot Assets, Cashu และ Fedimint ก็ทำให้การออกโทเคนหรือสกุลเงินที่อิงกับบิตคอยน์เป็นจริงได้บนโครงสร้างของบิตคอยน์เอง
เทคโนโลยีเหล่านี้ไม่ใช่การเติบโตแบบปาฏิหาริย์ แต่มันคืบหน้าอย่างต่อเนื่องและมั่นคง และนั่นคือเหตุผลที่มันจะ “อยู่รอด” ได้ในระยะยาว เมื่อฐานของความน่าเชื่อถือไม่ใช่บริษัท รัฐบาล หรือทุน แต่คือสิ่งที่ตรวจสอบได้และเปลี่ยนกฎไม่ได้
แน่นอนว่าบิตคอยน์ต้องแข่งขันกับ stable coin, เงินดิจิทัลของรัฐ และ cryptocurrency อื่น ๆ แต่สิ่งที่ทำให้มันเหนือกว่านั้นไม่ใช่ฟีเจอร์ หากแต่เป็นความทนทาน และความมั่นคงของกฎที่ไม่มีใครเปลี่ยนได้ ไม่มีทีมพัฒนา ไม่มีบริษัท ไม่มีประตูปิด หรือการยึดบัญชี มันยืนอยู่บนคณิตศาสตร์ พลังงาน และเวลา
หลายกรณีใช้งานที่เคยถูกทดลองในโลกคริปโตจะค่อย ๆ เคลื่อนเข้ามาสู่บิตคอยน์ เพราะโครงสร้างของมันแข็งแกร่งกว่า ไม่ต้องการทีมพัฒนาแกนกลาง ไม่ต้องพึ่งกลไกเสี่ยงต่อการผูกขาด และไม่ต้องการ “ความเชื่อใจ” จากใครเลย
Bitcoin Standard ที่ผมพูดถึงจึงไม่ใช่การเปลี่ยนแปลงแบบพลิกหน้ามือเป็นหลังมือ แต่คือการ “เปลี่ยนฐานของระบบ” ทีละชั้น ระบบการเงินใหม่ที่อิงอยู่กับบิตคอยน์กำลังเกิดขึ้นแล้ว มันไม่ใช่โลกที่ทุกคนถือเหรียญบิตคอยน์ แต่มันคือโลกที่คนใช้อาจไม่รู้ตัวด้วยซ้ำว่า “สิ่งที่เขาใช้นั้นอิงอยู่กับบิตคอยน์”
ผู้คนอาจใช้เงินดิจิทัลที่สร้างบน Layer 3 หรือ Layer 4 ผ่านแอป ผ่านแพลตฟอร์ม หรือผ่านสกุลเงินใหม่ที่ดูไม่ต่างจากเดิม แต่เบื้องหลังของระบบจะผูกไว้กับบิตคอยน์
และถ้ามองในเชิงพัฒนาการ บิตคอยน์ก็เหมือนกับอินเทอร์เน็ต ครั้งหนึ่งอินเทอร์เน็ตก็ถูกมองว่าเข้าใจยาก ต้องพิมพ์ http ต้องรู้จัก TCP/IP ต้องตั้ง proxy เอง แต่ปัจจุบันผู้คนใช้งานอินเทอร์เน็ตโดยไม่รู้ว่าเบื้องหลังมีอะไรเลย บิตคอยน์กำลังเดินตามเส้นทางเดียวกัน โปรโตคอลกำลังถอยออกจากสายตา และวันหนึ่งเราจะ “ใช้มัน” โดยไม่ต้องรู้ว่ามันคืออะไร
หากนับจากช่วงเริ่มต้นของอินเทอร์เน็ตในยุค 1990 จนกลายเป็นโครงสร้างหลักของโลกในสองทศวรรษ เส้นเวลาของบิตคอยน์ก็กำลังเดินตามรอยเท้าของอินเทอร์เน็ต และถ้าเราเชื่อว่าวัฏจักรของเทคโนโลยีมีจังหวะของมันเอง เราก็จะรู้ว่า Bitcoin Standard นั้นไม่ใช่เรื่องของอนาคตไกลโพ้น แต่มันเกิดขึ้นแล้ว
siamstr
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@ 662f9bff:8960f6b2
2025-05-20 18:52:01April already and we are still refugees from the madness in HK. During March I had quite a few family matters that took priority and I also needed to work for two weeks. April is a similar schedule but we flew to Madeira for a change of scene and so that I could have a full 2-weeks off - my first real holiday in quite a few years!
We are staying in an airBnB in Funchal - an experience that I can totally recommend - video below! Nice to have an apartment that is fully equipped in a central location and no hassle for a few weeks. While here we are making the most of the great location and all the local possibiliites.
Elsewhere in the world
Things are clearly not going great around the world. If you are still confused as to why these things are happening, do go back and read the previous Letter from HK section "Why? How did we get here?"
You should be in no doubt that the "Great Reset" with its supporting "Great Narrative" is in full swing.. This is it - it is not a drill. For additional insights the following are recommended.
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Jeff Booth discusses clearly and unemotionally with Pomp - Inflation is theft from humanity by the world governments
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James' summary of Day 2 of the Miami conference - Peter Thiel (wow) and a fantastic explainer from Saifedean on the costs of the current corrupt financial system
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James' summary of Day 3 of the Miami conference - listen in particular to the words of wisdom from Michael Saylor and Lyn Alden
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Layered Money - The corruption of the system will blow your mind once you understand it…
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This is BIG: Strike Is Bringing Freedom To Retail Merchants
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Mark summarises Ray's book: Things will go faster and slower than you want!
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Thoughtful words from George - evil is at work - be in no doubt..
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Wow - My mind is blown. Must listen to John Carvalho - what clear ambition and answers to every question!
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Related to the John Carvalho discussion. Likely these two options will end up complementing each other
On the personal and inspirational side
Advantage of time off work is that I have more time to read, listen and watch things that interest me. It really is a privilege that so much high quality material is so readily available. Do not let it go to waste. A few fabulous finds (and some re-finds) from this past week:
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Ali Abdaal's bookshelf review just blew my mind! For the full list of books with links see the text under his video. So many inspirations and his delivery is perfect.
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Gotta recommend Ali's 21 Life Lessons. I have been following him since he was student in Cambridge five years ago - his personal and professional growth and what he achieves (now with his team) is truely staggering.
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Also his 15 books to read in 2022 - especially this one!
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I also keep going back to Steve Jobs giving the 2005 Stanford Commencement address Three stories from his life - listen and be inspired - especially story #3
You will know that I am a fan of Audio Books and also Kindle - recently I am starting to use Whispersync where you get the Kindle- and Audio-books together for a nice price. This makes it easier to take notes (using Mac or iPad Kindle reader) while getting the benefit of having the book read to you by a professional reader.
I have also been inspired by a few people pushing themselves to do more reading - like this girl and Ali himself with his tips. Above all: just do it and do not get stuck on something that does not work for you!
Books that I am reading - Audio and Kindle!
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The Final Empire: Mistborn, Book 1 - this is a new genre for me - I rather feel that it might be a bit too complicated for my engineering mind - let's see
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Die with Zero: Getting All You Can from Your Money and Your Life - certainly provocative and obvious if you think about it but 99% do the opposite!
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Chariots of the Gods - a classic by Erich von Daniken (written in 1968) - I have been inspired by his recent YT video appearances. Thought provoking and leads you to many possibilities.
So what's it like in Funchal, Madeira?
Do check out HitTheRoadMadeira's walking tour around Funchal
My first impressions of Funchal
and see my day out on Thursday!
Saturday - Funchal and Camar de Lobos
That's it!
No one can be told what The Matrix is.\ You have to see it for yourself.**
Do share this newsletter with any of your friends and family who might be interested.
You can also email me at: LetterFrom@rogerprice.me
💡Enjoy the newsletters in your own language : Dutch, French, German, Serbian, Chinese Traditional & Simplified, Thai and Burmese.
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@ 207ad2a0:e7cca7b0
2025-01-07 03:46:04Quick context: I wanted to check out Nostr's longform posts and this blog post seemed like a good one to try and mirror. It's originally from my free to read/share attempt to write a novel, but this post here is completely standalone - just describing how I used AI image generation to make a small piece of the work.
Hold on, put your pitchforks down - outside of using Grammerly & Emacs for grammatical corrections - not a single character was generated or modified by computers; a non-insignificant portion of my first draft originating on pen & paper. No AI is ~~weird and crazy~~ imaginative enough to write like I do. The only successful AI contribution you'll find is a single image, the map, which I heavily edited. This post will go over how I generated and modified an image using AI, which I believe brought some value to the work, and cover a few quick thoughts about AI towards the end.
Let's be clear, I can't draw, but I wanted a map which I believed would improve the story I was working on. After getting abysmal results by prompting AI with text only I decided to use "Diffuse the Rest," a Stable Diffusion tool that allows you to provide a reference image + description to fine tune what you're looking for. I gave it this Microsoft Paint looking drawing:
and after a number of outputs, selected this one to work on:
The image is way better than the one I provided, but had I used it as is, I still feel it would have decreased the quality of my work instead of increasing it. After firing up Gimp I cropped out the top and bottom, expanded the ocean and separated the landmasses, then copied the top right corner of the large landmass to replace the bottom left that got cut off. Now we've got something that looks like concept art: not horrible, and gets the basic idea across, but it's still due for a lot more detail.
The next thing I did was add some texture to make it look more map like. I duplicated the layer in Gimp and applied the "Cartoon" filter to both for some texture. The top layer had a much lower effect strength to give it a more textured look, while the lower layer had a higher effect strength that looked a lot like mountains or other terrain features. Creating a layer mask allowed me to brush over spots to display the lower layer in certain areas, giving it some much needed features.
At this point I'd made it to where I felt it may improve the work instead of detracting from it - at least after labels and borders were added, but the colors seemed artificial and out of place. Luckily, however, this is when PhotoFunia could step in and apply a sketch effect to the image.
At this point I was pretty happy with how it was looking, it was close to what I envisioned and looked very visually appealing while still being a good way to portray information. All that was left was to make the white background transparent, add some minor details, and add the labels and borders. Below is the exact image I wound up using:
Overall, I'm very satisfied with how it turned out, and if you're working on a creative project, I'd recommend attempting something like this. It's not a central part of the work, but it improved the chapter a fair bit, and was doable despite lacking the talent and not intending to allocate a budget to my making of a free to read and share story.
The AI Generated Elephant in the Room
If you've read my non-fiction writing before, you'll know that I think AI will find its place around the skill floor as opposed to the skill ceiling. As you saw with my input, I have absolutely zero drawing talent, but with some elbow grease and an existing creative direction before and after generating an image I was able to get something well above what I could have otherwise accomplished. Outside of the lowest common denominators like stock photos for the sole purpose of a link preview being eye catching, however, I doubt AI will be wholesale replacing most creative works anytime soon. I can assure you that I tried numerous times to describe the map without providing a reference image, and if I used one of those outputs (or even just the unedited output after providing the reference image) it would have decreased the quality of my work instead of improving it.
I'm going to go out on a limb and expect that AI image, text, and video is all going to find its place in slop & generic content (such as AI generated slop replacing article spinners and stock photos respectively) and otherwise be used in a supporting role for various creative endeavors. For people working on projects like I'm working on (e.g. intended budget $0) it's helpful to have an AI capable of doing legwork - enabling projects to exist or be improved in ways they otherwise wouldn't have. I'm also guessing it'll find its way into more professional settings for grunt work - think a picture frame or fake TV show that would exist in the background of an animated project - likely a detail most people probably wouldn't notice, but that would save the creators time and money and/or allow them to focus more on the essential aspects of said work. Beyond that, as I've predicted before: I expect plenty of emails will be generated from a short list of bullet points, only to be summarized by the recipient's AI back into bullet points.
I will also make a prediction counter to what seems mainstream: AI is about to peak for a while. The start of AI image generation was with Google's DeepDream in 2015 - image recognition software that could be run in reverse to "recognize" patterns where there were none, effectively generating an image from digital noise or an unrelated image. While I'm not an expert by any means, I don't think we're too far off from that a decade later, just using very fine tuned tools that develop more coherent images. I guess that we're close to maxing out how efficiently we're able to generate images and video in that manner, and the hard caps on how much creative direction we can have when using AI - as well as the limits to how long we can keep it coherent (e.g. long videos or a chronologically consistent set of images) - will prevent AI from progressing too far beyond what it is currently unless/until another breakthrough occurs.
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@ d360efec:14907b5f
2025-05-13 00:39:56🚀📉 #BTC วิเคราะห์ H2! พุ่งชน 105K แล้วเจอแรงขาย... จับตา FVG 100.5K เป็นจุดวัดใจ! 👀📊
จากากรวิเคราะห์ทางเทคนิคสำหรับ #Bitcoin ในกรอบเวลา H2:
สัปดาห์ที่แล้ว #BTC ได้เบรคและพุ่งขึ้นอย่างแข็งแกร่งค่ะ 📈⚡ แต่เมื่อวันจันทร์ที่ผ่านมา ราคาได้ขึ้นไปชนแนวต้านบริเวณ 105,000 ดอลลาร์ แล้วเจอแรงขายย่อตัวลงมาตลอดทั้งวันค่ะ 🧱📉
ตอนนี้ ระดับที่น่าจับตาอย่างยิ่งคือโซน H4 FVG (Fair Value Gap ในกราฟ 4 ชั่วโมง) ที่ 100,500 ดอลลาร์ ค่ะ 🎯 (FVG คือโซนที่ราคาวิ่งผ่านไปเร็วๆ และมักเป็นบริเวณที่ราคามีโอกาสกลับมาทดสอบ/เติมเต็ม)
👇 โซน FVG ที่ 100.5K นี้ ยังคงเป็น Area of Interest ที่น่าสนใจสำหรับมองหาจังหวะ Long เพื่อลุ้นการขึ้นในคลื่นลูกถัดไปค่ะ!
🤔💡 อย่างไรก็ตาม การตัดสินใจเข้า Long หรือเทรดที่บริเวณนี้ ขึ้นอยู่กับว่าราคา แสดงปฏิกิริยาอย่างไรเมื่อมาถึงโซน 100.5K นี้ เพื่อยืนยันสัญญาณสำหรับการเคลื่อนไหวที่จะขึ้นสูงกว่าเดิมค่ะ!
เฝ้าดู Price Action ที่ระดับนี้อย่างใกล้ชิดนะคะ! 📍
BTC #Bitcoin #Crypto #คริปโต #TechnicalAnalysis #Trading #FVG #FairValueGap #PriceAction #MarketAnalysis #ลงทุนคริปโต #วิเคราะห์กราฟ #TradeSetup #ข่าวคริปโต #ตลาดคริปโต
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@ 08f96856:ffe59a09
2025-05-15 01:17:18เมื่อพูดถึง Bitcoin Standard หลายคนมักนึกถึงภาพโลกอนาคตที่ทุกคนใช้บิตคอยน์ซื้อกาแฟหรือของใช้ในชีวิตประจำวัน ภาพแบบนั้นดูเหมือนไกลตัวและเป็นไปไม่ได้ในความเป็นจริง หลายคนถึงกับพูดว่า “คงไม่ทันเห็นในช่วงชีวิตนี้หรอก” แต่ในมุมมองของผม Bitcoin Standard อาจไม่ได้เริ่มต้นจากการที่เราจ่ายบิตคอยน์โดยตรงในร้านค้า แต่อาจเริ่มจากบางสิ่งที่เงียบกว่า ลึกกว่า และเกิดขึ้นแล้วในขณะนี้ นั่นคือ การล่มสลายทีละน้อยของระบบเฟียตที่เราใช้กันอยู่
ระบบเงินที่อิงกับอำนาจรัฐกำลังเข้าสู่ช่วงขาลง รัฐบาลทั่วโลกกำลังจมอยู่ในภาระหนี้ระดับประวัติการณ์ แม้แต่ประเทศมหาอำนาจก็เริ่มแสดงสัญญาณของภาวะเสี่ยงผิดนัดชำระหนี้ อัตราเงินเฟ้อกลายเป็นปัญหาเรื้อรังที่ไม่มีท่าทีจะหายไป ธนาคารที่เคยโอนฟรีเริ่มกลับมาคิดค่าธรรมเนียม และประชาชนก็เริ่มรู้สึกถึงการเสื่อมศรัทธาในระบบการเงินดั้งเดิม แม้จะยังพูดกันไม่เต็มเสียงก็ตาม
ในขณะเดียวกัน บิตคอยน์เองก็กำลังพัฒนาแบบเงียบ ๆ เงียบ... แต่ไม่เคยหยุด โดยเฉพาะในระดับ Layer 2 ที่เริ่มแสดงศักยภาพอย่างจริงจัง Lightning Network เป็น Layer 2 ที่เปิดใช้งานมาได้ระยะเวลสหนึ่ง และยังคงมีบทบาทสำคัญที่สุดในระบบนิเวศของบิตคอยน์ มันทำให้การชำระเงินเร็วขึ้น มีต้นทุนต่ำ และไม่ต้องบันทึกทุกธุรกรรมลงบล็อกเชน เครือข่ายนี้กำลังขยายตัวทั้งในแง่ของโหนดและการใช้งานจริงทั่วโลก
ขณะเดียวกัน Layer 2 ทางเลือกอื่นอย่าง Ark Protocol ก็กำลังพัฒนาเพื่อตอบโจทย์ด้านความเป็นส่วนตัวและประสบการณ์ใช้งานที่ง่าย BitVM เปิดแนวทางใหม่ให้บิตคอยน์รองรับ smart contract ได้ในระดับ Turing-complete ซึ่งทำให้เกิดความเป็นไปได้ในกรณีใช้งานอีกมากมาย และเทคโนโลยีที่น่าสนใจอย่าง Taproot Assets, Cashu และ Fedimint ก็ทำให้การออกโทเคนหรือสกุลเงินที่อิงกับบิตคอยน์เป็นจริงได้บนโครงสร้างของบิตคอยน์เอง
เทคโนโลยีเหล่านี้ไม่ใช่การเติบโตแบบปาฏิหาริย์ แต่มันคืบหน้าอย่างต่อเนื่องและมั่นคง และนั่นคือเหตุผลที่มันจะ “อยู่รอด” ได้ในระยะยาว เมื่อฐานของความน่าเชื่อถือไม่ใช่บริษัท รัฐบาล หรือทุน แต่คือสิ่งที่ตรวจสอบได้และเปลี่ยนกฎไม่ได้
แน่นอนว่าบิตคอยน์ต้องแข่งขันกับ stable coin, เงินดิจิทัลของรัฐ และ cryptocurrency อื่น ๆ แต่สิ่งที่ทำให้มันเหนือกว่านั้นไม่ใช่ฟีเจอร์ หากแต่เป็นความทนทาน และความมั่นคงของกฎที่ไม่มีใครเปลี่ยนได้ ไม่มีทีมพัฒนา ไม่มีบริษัท ไม่มีประตูปิด หรือการยึดบัญชี มันยืนอยู่บนคณิตศาสตร์ พลังงาน และเวลา
หลายกรณีใช้งานที่เคยถูกทดลองในโลกคริปโตจะค่อย ๆ เคลื่อนเข้ามาสู่บิตคอยน์ เพราะโครงสร้างของมันแข็งแกร่งกว่า ไม่ต้องการทีมพัฒนาแกนกลาง ไม่ต้องพึ่งกลไกเสี่ยงต่อการผูกขาด และไม่ต้องการ “ความเชื่อใจ” จากใครเลย
Bitcoin Standard ที่ผมพูดถึงจึงไม่ใช่การเปลี่ยนแปลงแบบพลิกหน้ามือเป็นหลังมือ แต่คือการ “เปลี่ยนฐานของระบบ” ทีละชั้น ระบบการเงินใหม่ที่อิงอยู่กับบิตคอยน์กำลังเกิดขึ้นแล้ว มันไม่ใช่โลกที่ทุกคนถือเหรียญบิตคอยน์ แต่มันคือโลกที่คนใช้อาจไม่รู้ตัวด้วยซ้ำว่า “สิ่งที่เขาใช้นั้นอิงอยู่กับบิตคอยน์”
ผู้คนอาจใช้เงินดิจิทัลที่สร้างบน Layer 3 หรือ Layer 4 ผ่านแอป ผ่านแพลตฟอร์ม หรือผ่านสกุลเงินใหม่ที่ดูไม่ต่างจากเดิม แต่เบื้องหลังของระบบจะผูกไว้กับบิตคอยน์
และถ้ามองในเชิงพัฒนาการ บิตคอยน์ก็เหมือนกับอินเทอร์เน็ต ครั้งหนึ่งอินเทอร์เน็ตก็ถูกมองว่าเข้าใจยาก ต้องพิมพ์ http ต้องรู้จัก TCP/IP ต้องตั้ง proxy เอง แต่ปัจจุบันผู้คนใช้งานอินเทอร์เน็ตโดยไม่รู้ว่าเบื้องหลังมีอะไรเลย บิตคอยน์กำลังเดินตามเส้นทางเดียวกัน โปรโตคอลกำลังถอยออกจากสายตา และวันหนึ่งเราจะ “ใช้มัน” โดยไม่ต้องรู้ว่ามันคืออะไร
หากนับจากช่วงเริ่มต้นของอินเทอร์เน็ตในยุค 1990 จนกลายเป็นโครงสร้างหลักของโลกในสองทศวรรษ เส้นเวลาของบิตคอยน์ก็กำลังเดินตามรอยเท้าของอินเทอร์เน็ต และถ้าเราเชื่อว่าวัฏจักรของเทคโนโลยีมีจังหวะของมันเอง เราก็จะรู้ว่า Bitcoin Standard นั้นไม่ใช่เรื่องของอนาคตไกลโพ้น แต่มันเกิดขึ้นแล้ว
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@ e6817453:b0ac3c39
2025-01-05 14:29:17The Rise of Graph RAGs and the Quest for Data Quality
As we enter a new year, it’s impossible to ignore the boom of retrieval-augmented generation (RAG) systems, particularly those leveraging graph-based approaches. The previous year saw a surge in advancements and discussions about Graph RAGs, driven by their potential to enhance large language models (LLMs), reduce hallucinations, and deliver more reliable outputs. Let’s dive into the trends, challenges, and strategies for making the most of Graph RAGs in artificial intelligence.
Booming Interest in Graph RAGs
Graph RAGs have dominated the conversation in AI circles. With new research papers and innovations emerging weekly, it’s clear that this approach is reshaping the landscape. These systems, especially those developed by tech giants like Microsoft, demonstrate how graphs can:
- Enhance LLM Outputs: By grounding responses in structured knowledge, graphs significantly reduce hallucinations.
- Support Complex Queries: Graphs excel at managing linked and connected data, making them ideal for intricate problem-solving.
Conferences on linked and connected data have increasingly focused on Graph RAGs, underscoring their central role in modern AI systems. However, the excitement around this technology has brought critical questions to the forefront: How do we ensure the quality of the graphs we’re building, and are they genuinely aligned with our needs?
Data Quality: The Foundation of Effective Graphs
A high-quality graph is the backbone of any successful RAG system. Constructing these graphs from unstructured data requires attention to detail and rigorous processes. Here’s why:
- Richness of Entities: Effective retrieval depends on graphs populated with rich, detailed entities.
- Freedom from Hallucinations: Poorly constructed graphs amplify inaccuracies rather than mitigating them.
Without robust data quality, even the most sophisticated Graph RAGs become ineffective. As a result, the focus must shift to refining the graph construction process. Improving data strategy and ensuring meticulous data preparation is essential to unlock the full potential of Graph RAGs.
Hybrid Graph RAGs and Variations
While standard Graph RAGs are already transformative, hybrid models offer additional flexibility and power. Hybrid RAGs combine structured graph data with other retrieval mechanisms, creating systems that:
- Handle diverse data sources with ease.
- Offer improved adaptability to complex queries.
Exploring these variations can open new avenues for AI systems, particularly in domains requiring structured and unstructured data processing.
Ontology: The Key to Graph Construction Quality
Ontology — defining how concepts relate within a knowledge domain — is critical for building effective graphs. While this might sound abstract, it’s a well-established field blending philosophy, engineering, and art. Ontology engineering provides the framework for:
- Defining Relationships: Clarifying how concepts connect within a domain.
- Validating Graph Structures: Ensuring constructed graphs are logically sound and align with domain-specific realities.
Traditionally, ontologists — experts in this discipline — have been integral to large enterprises and research teams. However, not every team has access to dedicated ontologists, leading to a significant challenge: How can teams without such expertise ensure the quality of their graphs?
How to Build Ontology Expertise in a Startup Team
For startups and smaller teams, developing ontology expertise may seem daunting, but it is achievable with the right approach:
- Assign a Knowledge Champion: Identify a team member with a strong analytical mindset and give them time and resources to learn ontology engineering.
- Provide Training: Invest in courses, workshops, or certifications in knowledge graph and ontology creation.
- Leverage Partnerships: Collaborate with academic institutions, domain experts, or consultants to build initial frameworks.
- Utilize Tools: Introduce ontology development tools like Protégé, OWL, or SHACL to simplify the creation and validation process.
- Iterate with Feedback: Continuously refine ontologies through collaboration with domain experts and iterative testing.
So, it is not always affordable for a startup to have a dedicated oncologist or knowledge engineer in a team, but you could involve consulters or build barefoot experts.
You could read about barefoot experts in my article :
Even startups can achieve robust and domain-specific ontology frameworks by fostering in-house expertise.
How to Find or Create Ontologies
For teams venturing into Graph RAGs, several strategies can help address the ontology gap:
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Leverage Existing Ontologies: Many industries and domains already have open ontologies. For instance:
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Public Knowledge Graphs: Resources like Wikipedia’s graph offer a wealth of structured knowledge.
- Industry Standards: Enterprises such as Siemens have invested in creating and sharing ontologies specific to their fields.
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Business Framework Ontology (BFO): A valuable resource for enterprises looking to define business processes and structures.
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Build In-House Expertise: If budgets allow, consider hiring knowledge engineers or providing team members with the resources and time to develop expertise in ontology creation.
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Utilize LLMs for Ontology Construction: Interestingly, LLMs themselves can act as a starting point for ontology development:
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Prompt-Based Extraction: LLMs can generate draft ontologies by leveraging their extensive training on graph data.
- Domain Expert Refinement: Combine LLM-generated structures with insights from domain experts to create tailored ontologies.
Parallel Ontology and Graph Extraction
An emerging approach involves extracting ontologies and graphs in parallel. While this can streamline the process, it presents challenges such as:
- Detecting Hallucinations: Differentiating between genuine insights and AI-generated inaccuracies.
- Ensuring Completeness: Ensuring no critical concepts are overlooked during extraction.
Teams must carefully validate outputs to ensure reliability and accuracy when employing this parallel method.
LLMs as Ontologists
While traditionally dependent on human expertise, ontology creation is increasingly supported by LLMs. These models, trained on vast amounts of data, possess inherent knowledge of many open ontologies and taxonomies. Teams can use LLMs to:
- Generate Skeleton Ontologies: Prompt LLMs with domain-specific information to draft initial ontology structures.
- Validate and Refine Ontologies: Collaborate with domain experts to refine these drafts, ensuring accuracy and relevance.
However, for validation and graph construction, formal tools such as OWL, SHACL, and RDF should be prioritized over LLMs to minimize hallucinations and ensure robust outcomes.
Final Thoughts: Unlocking the Power of Graph RAGs
The rise of Graph RAGs underscores a simple but crucial correlation: improving graph construction and data quality directly enhances retrieval systems. To truly harness this power, teams must invest in understanding ontologies, building quality graphs, and leveraging both human expertise and advanced AI tools.
As we move forward, the interplay between Graph RAGs and ontology engineering will continue to shape the future of AI. Whether through adopting existing frameworks or exploring innovative uses of LLMs, the path to success lies in a deep commitment to data quality and domain understanding.
Have you explored these technologies in your work? Share your experiences and insights — and stay tuned for more discussions on ontology extraction and its role in AI advancements. Cheers to a year of innovation!
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@ 04c915da:3dfbecc9
2025-05-20 15:53:48This piece is the first in a series that will focus on things I think are a priority if your focus is similar to mine: building a strong family and safeguarding their future.
Choosing the ideal place to raise a family is one of the most significant decisions you will ever make. For simplicity sake I will break down my thought process into key factors: strong property rights, the ability to grow your own food, access to fresh water, the freedom to own and train with guns, and a dependable community.
A Jurisdiction with Strong Property Rights
Strong property rights are essential and allow you to build on a solid foundation that is less likely to break underneath you. Regions with a history of limited government and clear legal protections for landowners are ideal. Personally I think the US is the single best option globally, but within the US there is a wide difference between which state you choose. Choose carefully and thoughtfully, think long term. Obviously if you are not American this is not a realistic option for you, there are other solid options available especially if your family has mobility. I understand many do not have this capability to easily move, consider that your first priority, making movement and jurisdiction choice possible in the first place.
Abundant Access to Fresh Water
Water is life. I cannot overstate the importance of living somewhere with reliable, clean, and abundant freshwater. Some regions face water scarcity or heavy regulations on usage, so prioritizing a place where water is plentiful and your rights to it are protected is critical. Ideally you should have well access so you are not tied to municipal water supplies. In times of crisis or chaos well water cannot be easily shutoff or disrupted. If you live in an area that is drought prone, you are one drought away from societal chaos. Not enough people appreciate this simple fact.
Grow Your Own Food
A location with fertile soil, a favorable climate, and enough space for a small homestead or at the very least a garden is key. In stable times, a small homestead provides good food and important education for your family. In times of chaos your family being able to grow and raise healthy food provides a level of self sufficiency that many others will lack. Look for areas with minimal restrictions, good weather, and a culture that supports local farming.
Guns
The ability to defend your family is fundamental. A location where you can legally and easily own guns is a must. Look for places with a strong gun culture and a political history of protecting those rights. Owning one or two guns is not enough and without proper training they will be a liability rather than a benefit. Get comfortable and proficient. Never stop improving your skills. If the time comes that you must use a gun to defend your family, the skills must be instinct. Practice. Practice. Practice.
A Strong Community You Can Depend On
No one thrives alone. A ride or die community that rallies together in tough times is invaluable. Seek out a place where people know their neighbors, share similar values, and are quick to lend a hand. Lead by example and become a good neighbor, people will naturally respond in kind. Small towns are ideal, if possible, but living outside of a major city can be a solid balance in terms of work opportunities and family security.
Let me know if you found this helpful. My plan is to break down how I think about these five key subjects in future posts.
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@ d360efec:14907b5f
2025-05-12 04:01:23 -
@ d23af4ac:7bf07adb
2025-02-18 17:07:55This is a test-note published directly from Obsidian
Heading 1
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Heading 2
Second paragraph text. * List item 1 * List item 2
js console.log("Hello world!")
Json
json { name: "Alise", age: 45 }
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[!DANGER] This is a "danger" type message. Should be properly formateed. This is a "danger" type message. Should be properly formateed. This is a "danger" type message. Should be properly formateed. This is a "danger" type message. Should be properly formateed. This is a "danger" type message. Should be properly formateed.
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Pasted image:
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This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote[^1]. This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote. This is a blockquote.
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[!QUESTION] Will this inline code format properly?
console.log('Yo momma so fat she took a spoon to the Super Bown');
Idk...[^1]: Footnotes also supported? Even inside blockquotes? [^2]: Footnote in regular paragraph
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@ a4a6b584:1e05b95b
2025-01-02 18:13:31The Four-Layer Framework
Layer 1: Zoom Out
Start by looking at the big picture. What’s the subject about, and why does it matter? Focus on the overarching ideas and how they fit together. Think of this as the 30,000-foot view—it’s about understanding the "why" and "how" before diving into the "what."
Example: If you’re learning programming, start by understanding that it’s about giving logical instructions to computers to solve problems.
- Tip: Keep it simple. Summarize the subject in one or two sentences and avoid getting bogged down in specifics at this stage.
Once you have the big picture in mind, it’s time to start breaking it down.
Layer 2: Categorize and Connect
Now it’s time to break the subject into categories—like creating branches on a tree. This helps your brain organize information logically and see connections between ideas.
Example: Studying biology? Group concepts into categories like cells, genetics, and ecosystems.
- Tip: Use headings or labels to group similar ideas. Jot these down in a list or simple diagram to keep track.
With your categories in place, you’re ready to dive into the details that bring them to life.
Layer 3: Master the Details
Once you’ve mapped out the main categories, you’re ready to dive deeper. This is where you learn the nuts and bolts—like formulas, specific techniques, or key terminology. These details make the subject practical and actionable.
Example: In programming, this might mean learning the syntax for loops, conditionals, or functions in your chosen language.
- Tip: Focus on details that clarify the categories from Layer 2. Skip anything that doesn’t add to your understanding.
Now that you’ve mastered the essentials, you can expand your knowledge to include extra material.
Layer 4: Expand Your Horizons
Finally, move on to the extra material—less critical facts, trivia, or edge cases. While these aren’t essential to mastering the subject, they can be useful in specialized discussions or exams.
Example: Learn about rare programming quirks or historical trivia about a language’s development.
- Tip: Spend minimal time here unless it’s necessary for your goals. It’s okay to skim if you’re short on time.
Pro Tips for Better Learning
1. Use Active Recall and Spaced Repetition
Test yourself without looking at notes. Review what you’ve learned at increasing intervals—like after a day, a week, and a month. This strengthens memory by forcing your brain to actively retrieve information.
2. Map It Out
Create visual aids like diagrams or concept maps to clarify relationships between ideas. These are particularly helpful for organizing categories in Layer 2.
3. Teach What You Learn
Explain the subject to someone else as if they’re hearing it for the first time. Teaching exposes any gaps in your understanding and helps reinforce the material.
4. Engage with LLMs and Discuss Concepts
Take advantage of tools like ChatGPT or similar large language models to explore your topic in greater depth. Use these tools to:
- Ask specific questions to clarify confusing points.
- Engage in discussions to simulate real-world applications of the subject.
- Generate examples or analogies that deepen your understanding.Tip: Use LLMs as a study partner, but don’t rely solely on them. Combine these insights with your own critical thinking to develop a well-rounded perspective.
Get Started
Ready to try the Four-Layer Method? Take 15 minutes today to map out the big picture of a topic you’re curious about—what’s it all about, and why does it matter? By building your understanding step by step, you’ll master the subject with less stress and more confidence.
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@ 04c915da:3dfbecc9
2025-05-20 15:47:16Here’s a revised timeline of macro-level events from The Mandibles: A Family, 2029–2047 by Lionel Shriver, reimagined in a world where Bitcoin is adopted as a widely accepted form of money, altering the original narrative’s assumptions about currency collapse and economic control. In Shriver’s original story, the failure of Bitcoin is assumed amid the dominance of the bancor and the dollar’s collapse. Here, Bitcoin’s success reshapes the economic and societal trajectory, decentralizing power and challenging state-driven outcomes.
Part One: 2029–2032
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2029 (Early Year)\ The United States faces economic strain as the dollar weakens against global shifts. However, Bitcoin, having gained traction emerges as a viable alternative. Unlike the original timeline, the bancor—a supranational currency backed by a coalition of nations—struggles to gain footing as Bitcoin’s decentralized adoption grows among individuals and businesses worldwide, undermining both the dollar and the bancor.
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2029 (Mid-Year: The Great Renunciation)\ Treasury bonds lose value, and the government bans Bitcoin, labeling it a threat to sovereignty (mirroring the original bancor ban). However, a Bitcoin ban proves unenforceable—its decentralized nature thwarts confiscation efforts, unlike gold in the original story. Hyperinflation hits the dollar as the U.S. prints money, but Bitcoin’s fixed supply shields adopters from currency devaluation, creating a dual-economy split: dollar users suffer, while Bitcoin users thrive.
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2029 (Late Year)\ Dollar-based inflation soars, emptying stores of goods priced in fiat currency. Meanwhile, Bitcoin transactions flourish in underground and online markets, stabilizing trade for those plugged into the bitcoin ecosystem. Traditional supply chains falter, but peer-to-peer Bitcoin networks enable local and international exchange, reducing scarcity for early adopters. The government’s gold confiscation fails to bolster the dollar, as Bitcoin’s rise renders gold less relevant.
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2030–2031\ Crime spikes in dollar-dependent urban areas, but Bitcoin-friendly regions see less chaos, as digital wallets and smart contracts facilitate secure trade. The U.S. government doubles down on surveillance to crack down on bitcoin use. A cultural divide deepens: centralized authority weakens in Bitcoin-adopting communities, while dollar zones descend into lawlessness.
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2032\ By this point, Bitcoin is de facto legal tender in parts of the U.S. and globally, especially in tech-savvy or libertarian-leaning regions. The federal government’s grip slips as tax collection in dollars plummets—Bitcoin’s traceability is low, and citizens evade fiat-based levies. Rural and urban Bitcoin hubs emerge, while the dollar economy remains fractured.
Time Jump: 2032–2047
- Over 15 years, Bitcoin solidifies as a global reserve currency, eroding centralized control. The U.S. government adapts, grudgingly integrating bitcoin into policy, though regional autonomy grows as Bitcoin empowers local economies.
Part Two: 2047
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2047 (Early Year)\ The U.S. is a hybrid state: Bitcoin is legal tender alongside a diminished dollar. Taxes are lower, collected in BTC, reducing federal overreach. Bitcoin’s adoption has decentralized power nationwide. The bancor has faded, unable to compete with Bitcoin’s grassroots momentum.
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2047 (Mid-Year)\ Travel and trade flow freely in Bitcoin zones, with no restrictive checkpoints. The dollar economy lingers in poorer areas, marked by decay, but Bitcoin’s dominance lifts overall prosperity, as its deflationary nature incentivizes saving and investment over consumption. Global supply chains rebound, powered by bitcoin enabled efficiency.
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2047 (Late Year)\ The U.S. is a patchwork of semi-autonomous zones, united by Bitcoin’s universal acceptance rather than federal control. Resource scarcity persists due to past disruptions, but economic stability is higher than in Shriver’s original dystopia—Bitcoin’s success prevents the authoritarian slide, fostering a freer, if imperfect, society.
Key Differences
- Currency Dynamics: Bitcoin’s triumph prevents the bancor’s dominance and mitigates hyperinflation’s worst effects, offering a lifeline outside state control.
- Government Power: Centralized authority weakens as Bitcoin evades bans and taxation, shifting power to individuals and communities.
- Societal Outcome: Instead of a surveillance state, 2047 sees a decentralized, bitcoin driven world—less oppressive, though still stratified between Bitcoin haves and have-nots.
This reimagining assumes Bitcoin overcomes Shriver’s implied skepticism to become a robust, adopted currency by 2029, fundamentally altering the novel’s bleak trajectory.
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@ 1c197b12:242e1642
2025-02-09 22:56:33A Cypherpunk's Manifesto by Eric Hughes
Privacy is necessary for an open society in the electronic age. Privacy is not secrecy. A private matter is something one doesn't want the whole world to know, but a secret matter is something one doesn't want anybody to know. Privacy is the power to selectively reveal oneself to the world.
If two parties have some sort of dealings, then each has a memory of their interaction. Each party can speak about their own memory of this; how could anyone prevent it? One could pass laws against it, but the freedom of speech, even more than privacy, is fundamental to an open society; we seek not to restrict any speech at all. If many parties speak together in the same forum, each can speak to all the others and aggregate together knowledge about individuals and other parties. The power of electronic communications has enabled such group speech, and it will not go away merely because we might want it to.
Since we desire privacy, we must ensure that each party to a transaction have knowledge only of that which is directly necessary for that transaction. Since any information can be spoken of, we must ensure that we reveal as little as possible. In most cases personal identity is not salient. When I purchase a magazine at a store and hand cash to the clerk, there is no need to know who I am. When I ask my electronic mail provider to send and receive messages, my provider need not know to whom I am speaking or what I am saying or what others are saying to me; my provider only need know how to get the message there and how much I owe them in fees. When my identity is revealed by the underlying mechanism of the transaction, I have no privacy. I cannot here selectively reveal myself; I must always reveal myself.
Therefore, privacy in an open society requires anonymous transaction systems. Until now, cash has been the primary such system. An anonymous transaction system is not a secret transaction system. An anonymous system empowers individuals to reveal their identity when desired and only when desired; this is the essence of privacy.
Privacy in an open society also requires cryptography. If I say something, I want it heard only by those for whom I intend it. If the content of my speech is available to the world, I have no privacy. To encrypt is to indicate the desire for privacy, and to encrypt with weak cryptography is to indicate not too much desire for privacy. Furthermore, to reveal one's identity with assurance when the default is anonymity requires the cryptographic signature.
We cannot expect governments, corporations, or other large, faceless organizations to grant us privacy out of their beneficence. It is to their advantage to speak of us, and we should expect that they will speak. To try to prevent their speech is to fight against the realities of information. Information does not just want to be free, it longs to be free. Information expands to fill the available storage space. Information is Rumor's younger, stronger cousin; Information is fleeter of foot, has more eyes, knows more, and understands less than Rumor.
We must defend our own privacy if we expect to have any. We must come together and create systems which allow anonymous transactions to take place. People have been defending their own privacy for centuries with whispers, darkness, envelopes, closed doors, secret handshakes, and couriers. The technologies of the past did not allow for strong privacy, but electronic technologies do.
We the Cypherpunks are dedicated to building anonymous systems. We are defending our privacy with cryptography, with anonymous mail forwarding systems, with digital signatures, and with electronic money.
Cypherpunks write code. We know that someone has to write software to defend privacy, and since we can't get privacy unless we all do, we're going to write it. We publish our code so that our fellow Cypherpunks may practice and play with it. Our code is free for all to use, worldwide. We don't much care if you don't approve of the software we write. We know that software can't be destroyed and that a widely dispersed system can't be shut down.
Cypherpunks deplore regulations on cryptography, for encryption is fundamentally a private act. The act of encryption, in fact, removes information from the public realm. Even laws against cryptography reach only so far as a nation's border and the arm of its violence. Cryptography will ineluctably spread over the whole globe, and with it the anonymous transactions systems that it makes possible.
For privacy to be widespread it must be part of a social contract. People must come and together deploy these systems for the common good. Privacy only extends so far as the cooperation of one's fellows in society. We the Cypherpunks seek your questions and your concerns and hope we may engage you so that we do not deceive ourselves. We will not, however, be moved out of our course because some may disagree with our goals.
The Cypherpunks are actively engaged in making the networks safer for privacy. Let us proceed together apace.
Onward.
Eric Hughes hughes@soda.berkeley.edu
9 March 1993
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@ fd208ee8:0fd927c1
2025-01-19 12:10:10I am so tired of people trying to waste my time with Nostrized imitations of stuff that already exists.
Instagram, but make it Nostr. Twitter, but make it Nostr. GitHub, but make it Nostr. Facebook, but make it Nostr. Wordpress, but make it Nostr. GoodReads, but make it Nostr. TikTok, but make it Nostr.
That stuff already exists, and it wasn't that great the first time around, either. Build something better than that stuff, that can only be brought into existence because of Nostr.
Build something that does something completely and awesomely new. Knock my socks off, bro.
Cuz, ain't nobody got time for that.
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@ 662f9bff:8960f6b2
2025-05-20 13:44:39Currently, and for the last three weeks, I am in Belfast. With the situation in HK becoming ever more crazy by the day we took the opportunity to escape from Hong Kong for a bit - I escaped with V and 3 suitcases. I also have some family matters that I am giving priority to at this time. We plan to stay a few more weeks in Northern Ireland and then after some time in Belgium we will be visiting some other European locations. I do hope that HK will be a place that we can go back to - we will see...
What's happening?
Quite a few significant events have happened in the last few weeks that deserve some deeper analysis and checking than you will ever get from the media propaganda circus that is running full force at the moment. You should be in no doubt that the "Great Reset" with its supporting "Great Narrative" is in full swing.
In most of the world the C19 story has run its course - for now. Most countries seem to have have "declared victory" and "moved on". Obviously HK is an exception (nothing happened there for the last two years) and I fear they will get to experience the whole 2-year thing in the coming 3-4 months. Watch out - the politicians everywhere are looking to permanently establish the "emergency controls" as "normal" - see previous Letter for some examples in Ireland and EU.
Invasion of Ukraine has led to so many lines being crossed - to the extent that clearly things will never be the same again in our lifetime.
Why? How did we get here?
I do not claim to know all the answers but some things are fairly clear if you look with open eyes and the wisdom that previous generations and civilisations have made available to us - even if most choose to ignore it (Plato on the flaws of democracy). Those who do not learn from history are doomed to repeat it and even those who learn will have litle choice but to go along for much of the ride.
Perhaps my notes and the links below will help you to form an educated opinion rather than the pervasive propaganda we are all being fed.
The current situation is more than 100 years in the making and much (if not most) of what you thought was true is less veracious than you could ever imagine. No doubt we could (and maybe should) go back further but let's start in 1913 when the British Government asked the public no longer to request exchange of their pounds for gold coins at the post office. This led to the issuing of War Bonds and fractional reserve accounting that allowed the Bank of England essentially to print unlimited money to fight in WW1; without this devious action they would have been constrained to act within the limits of the country's reserves and WW1 would have been shorter. Read The Fiat Standard for more details on how this happened. Around this time, and likely no coincidence, the US bankers were scheming how to get around the constitutional controls against such actions in their own country - read more in The Creature from Jekyll Island.
Following WW1, Germany was forced to pay war reparations in Gold (hard money). This led to a decade of money printing and extravagant excesses and crashes as hyperinflation set in, ending in the bankrupting of the country and the nationalism that fed WW2 - the gory details of devaluation and hyperinflation in Weimar Germany are described in When Money Dies. Meanwhile the US bankers who had been preparing since 1913 stepped in with unlimited money printing to fund WW2 and then also in their Marshal Plan to cement in place the Bretton Woods post-war agreement that made US Dollar the global reserve currency.
Decades of boom and bust followed - well explained by Ray Dalio who portrays this as perfectly normal and to be expected - unfortunately it is for soft (non-hard) money based economies. The Fourth Turning will give many additional insights to this period too as well as cycles to watch for and their cause and nature. In 1961 Eisenhower tried to warn the population in his farewell address about the "Military Industrial Complex" and many believe that Robert Kennedy's assassination in 1963 may well be not entirely unrelated.
Things came to a head in August 1971 when the countries of the world realised that the US was (contrary to all promises) printing unlimited funds to (among other things) fight the Vietnam war and so undermining the expected and required convertibility of US dollars (the currency of global trade) for Gold (hard money). A French warship heading to NY to collect France's gold was the straw that caused Nixon to default on US Debt convertibility and "close the gold window".
This in turn led to further decades of increasing financialization, further fuelled (pun intended) by the PetroDollar creation and "exorbitant priviledge" that the US obtained by having the global reserve currency - benefiting those closest to the money supply (Cantillon effect) while hollowing out the US manufacturing and eventually devastating its middle and working classes (Triffin dilemma) - Arthur Hayes describes all this and much more as well as the likely outlook in his article - Energy Canceled. Absolutely required reading or listen to Guy Swan reading it and giving his additional interpetation.
Zoltan Pozsar of Credit Suisse explains how the money system is now being reset following the events of last few weeks and his article outlines a likely way forward - Bretton Woods III. His paper is somewhat dense, heavy reading and you might prefer to listen to Luc Gromen's more conversational explainer with Marty
All of this was well known to our forefathers
The writers of the American Constitution understood the dangers of money being controlled by any elite group and they did their best to include protections in the US constitution. It did take the bankers multiple decades and puppet presidents to circumvent these but do so they did. Thomas Jefferson could not have been more clear in his warning.
" If the American people ever allow private banks to control the issue of their currency, first by inflation, then by deflation, the banks and corporations that will grow up around(these banks) will deprive the people of all property until their children wake up homeless on the continent their fathers conquered."
Islamic finace also recognised the dangers - you will likely be aware of the restrictions that forbid interest payments - read this interesting article from The Guardian
You will likely also be aware from schooldays that the Roman Empire collapsed because it expanded too much and the overhead became unbearable leading to the debasement of its money and inability to extract tax payments to support itself. Read more from Mises Institute. Here too, much of this will likely ring familiar.
So what can you do about it?
In theory Governments should respect Consent of the Governed and the 1948 Universal Declaration of Human Rights states that "The will of the people shall be the basis of the authority of government".
For you to decide if and to what extent governments today are acting in line with these principles. If not, what can you do about it?
The options you have are basically - Loyalty, Voice or Exit. 1. You can be loyal and accept what you are told - 2. you may (or may not) be able to voice disagreement and 3. you may (or may not!) be able to exit. Authoritarian governments will make everything except Loyalty difficult or even impossible - if in doubt, read George Orwell 1984 - or look just around at recent events today in many countries.
I'll be happy to delve deeper into this in subsequent letters if there is interest - for now I recommend you to read Sovereign Individual. It is a long read but each chapter starts with a summary and you can read the summaries of each chapter as a first step. Also - I'm happy to discuss with you - just reach out and let me know!
For those who prefer a structured reading list, check References
That's it!
No one can be told what The Matrix is.\ You have to see it for yourself.**
Do share this newsletter with any of your friends and family who might be interested.
You can easily ask questions or discuss any topics in the newsletters in our Telegram group - click the link here to join the group.\ You can also email me at: LetterFrom@rogerprice.me
💡Enjoy the newsletters in your own language : Dutch, French, German, Serbian, Chinese Traditional & Simplified, Thai and Burmese.
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@ 91bea5cd:1df4451c
2025-05-20 12:16:57Contexto e início
O precursor direto do avivamento foi William J. Seymour, um pregador afro-americano filho de ex-escravos, influenciado pelos ensinamentos de Charles Parham, que pregava o "batismo no Espírito Santo" com evidência do falar em línguas.
Em 1906, Seymour foi convidado para pregar em uma igreja em Los Angeles. Após ser rejeitado por alguns por sua pregação sobre o batismo com o Espírito Santo, ele começou a liderar reuniões de oração na casa da família Asberry. Em abril de 1906, durante uma dessas reuniões, os participantes começaram a experimentar manifestações intensas do Espírito Santo, incluindo glossolalia (falar em línguas), curas e profecias.
A Rua Azusa
Logo, o número de participantes cresceu tanto que foi necessário mudar para um antigo prédio da Igreja Metodista Africana Episcopal, no número 312 da Rua Azusa, no centro de Los Angeles. Esse local se tornou o epicentro do avivamento.
Características marcantes
Cultos espontâneos e fervorosos, muitas vezes sem ordem pré-definida.
Diversidade étnica e social: negros, brancos, latinos, asiáticos, ricos e pobres adoravam juntos — algo radical para os padrões da época.
Ênfase nas manifestações espirituais, como línguas, curas, visões e profecias.
Igualdade de gênero e raça no ministério, com mulheres e homens de diversas origens pregando e liderando.
Impacto
O avivamento da Rua Azusa marcou o nascimento e expansão global do pentecostalismo, hoje uma das maiores forças do cristianismo mundial. Missionários saíram de Azusa para várias partes do mundo, levando a mensagem pentecostal. Movimentos como as Assembleias de Deus e Igreja do Evangelho Quadrangular têm raízes nesse avivamento.
Tensão e Interpretação entre Reformistas e Pentecostalistas
Evangelhos e Atos
João Batista profetiza: “Ele vos batizará com o Espírito Santo e com fogo” (Mateus 3:11).
Em Atos 2, no Pentecostes, os discípulos falam em línguas e recebem poder (Atos 1:8; 2:4).
Outros episódios: Atos 10 (Casa de Cornélio) e Atos 19 (Éfeso).
Cartas Paulinas
Paulo não relaciona diretamente o “batismo com o Espírito” ao falar em línguas. Em 1 Coríntios 12:13 ele diz: “Pois em um só Espírito todos nós fomos batizados em um corpo”.
A glossolalia aparece como um dom entre outros, mas não como evidência obrigatória (1 Coríntios 12:30).
Tensão
Pentecostais veem o batismo com o Espírito como uma segunda experiência após a conversão, evidenciada por línguas. Reformados geralmente interpretam que o batismo com o Espírito ocorre na conversão e que línguas não são obrigatórias ou cessaram com os apóstolos.
Reformadores e o Batismo com o Espírito Santo
Martinho Lutero, João Calvino e outros reformadores não falavam em línguas nem davam ênfase a experiências carismáticas.
Cessacionismo: Doutrina comum entre reformados que diz que os dons sobrenaturais (línguas, profecias, curas) cessaram com a era apostólica.
Continuação (posição pentecostal): Os dons continuam hoje.
Filmes / Documentários
“Azusa Street: The Origins of Pentecostalism” (2006) – Documentário com imagens históricas e entrevistas.
“Wesley” (2009) – Biografia de John Wesley, precursor do metodismo e influência indireta no pentecostalismo.
“The Cross and the Switchblade” (1970) – História de David Wilkerson e a conversão de Nicky Cruz; enfatiza a obra do Espírito.
Série “God in America” (PBS) – Episódio sobre o pentecostalismo (não só Azusa, mas seu impacto cultural).
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@ d360efec:14907b5f
2025-05-10 03:57:17Disclaimer: * การวิเคราะห์นี้เป็นเพียงแนวทาง ไม่ใช่คำแนะนำในการซื้อขาย * การลงทุนมีความเสี่ยง ผู้ลงทุนควรตัดสินใจด้วยตนเอง
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@ b8851a06:9b120ba1
2025-01-14 15:28:32It Begins with a Click
It starts with a click: “Do you agree to our terms and conditions?”\ You scroll, you click, you comply. A harmless act, right? But what if every click was a surrender? What if every "yes" was another link in the chain binding you to a life where freedom requires approval?
This is the age of permission. Every aspect of your life is mediated by gatekeepers. Governments demand forms, corporations demand clicks, and algorithms demand obedience. You’re free, of course, as long as you play by the rules. But who writes the rules? Who decides what’s allowed? Who owns your life?
Welcome to Digital Serfdom
We once imagined the internet as a digital frontier—a vast, open space where ideas could flow freely and innovation would know no bounds. But instead of creating a decentralized utopia, we built a new feudal system.
- Your data? Owned by the lords of Big Tech.
- Your money? Controlled by banks and bureaucrats who can freeze it on a whim.
- Your thoughts? Filtered by algorithms that reward conformity and punish dissent.
The modern internet is a land of serfs and lords, and guess who’s doing the farming? You. Every time you agree to the terms, accept the permissions, or let an algorithm decide for you, you till the fields of a system designed to control, not liberate.
They don’t call it control, of course. They call it “protection.” They say, “We’re keeping you safe,” as they build a cage so big you can’t see the bars.
Freedom in Chains
But let’s be honest: we’re not just victims of this system—we’re participants. We’ve traded freedom for convenience, sovereignty for security. It’s easier to click “I Agree” than to read the fine print. It’s easier to let someone else hold your money than to take responsibility for it yourself. It’s easier to live a life of quiet compliance than to risk the chaos of true independence.
We tell ourselves it’s no big deal. What’s one click? What’s one form? But the permissions pile up. The chains grow heavier. And one day, you wake up and realize you’re free to do exactly what the system allows—and nothing more.
The Great Unpermissioning
It doesn’t have to be this way. You don’t need their approval. You don’t need their systems. You don’t need their permission.
The Great Unpermissioning is not a movement—it’s a mindset. It’s the refusal to accept a life mediated by gatekeepers. It’s the quiet rebellion of saying, “No.” It’s the realization that the freedom you seek won’t be granted—it must be reclaimed.
- Stop asking. Permission is their tool. Refusal is your weapon.
- Start building. Embrace tools that decentralize power: Bitcoin, encryption, open-source software, decentralized communication. Build systems they can’t control.
- Stand firm. They’ll tell you it’s dangerous. They’ll call you a radical. But remember: the most dangerous thing you can do is comply.
The path won’t be easy. Freedom never is. But it will be worth it.
The New Frontier
The age of permission has turned us into digital serfs, but there’s a new frontier on the horizon. It’s a world where you control your money, your data, your decisions. It’s a world of encryption, anonymity, and sovereignty. It’s a world built not on permission but on principles.
This world won’t be given to you. You have to build it. You have to fight for it. And it starts with one simple act: refusing to comply.
A Final Word
They promised us safety, but what they delivered was submission. The age of permission has enslaved us to the mundane, the monitored, and the mediocre. The Great Unpermissioning isn’t about tearing down the old world—it’s about walking away from it.
You don’t need to wait for their approval. You don’t need to ask for their permission. The freedom you’re looking for is already yours. Permission is their power—refusal is yours.
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@ 662f9bff:8960f6b2
2025-05-19 15:11:25Let's start with some important foundational thinking - based on natural law. Money should be separate from the State - if not history shows that governments and human greed will always take over and manipulate the system in their favour and the expense of their populations. For extensive references, read The Sovereign Individual and The Creature from Jeckyll Island.
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The Separation of State and Money is the most important thing you can listen to this week. Thanks to Allen Farrington - his paper is here for those who prefer to read. Wake up, folks!
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The American Forefathers knew this when the wrote the American Constitution. Thomas Jefferson said: “If the American people ever allow private banks to control the issue of their currency first by inflation then by deflation the banks and corporations that will grow up around them will deprive the people of all property until their children wake up homeless on the continent their Fathers conquered... I believe that banking institutions are more dangerous to our liberties than standing armies... The issuing power should be taken from the banks and restored to the people to whom it properly belongs.” Mark Moss explains it well here. Charlie Robinsons take here.
The situation in Canada explifies the issues
Governments have have long used "international economic sanctions" against other nations to enforce their positions. Now in Canada, and soon in your country too, they are applying such sanctions their own citizens - disconnecting them from the financial system and removing their ability to use their own life savings as they wish. Canadians spoke with their money - in one week they raised more money in support of the truckers for peaceful protest than were raised in support of all Canadian political parties in the election of last year - only to have it confiscated and blocked by those politicians.
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CPL. Daniel Bulford (Justin Trudeau's body guard) is particularly clear and eloquent - https://www.facebook.com/watch/?v=3123688351279364
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Nick & Greg (two Canadians in Canada) explain the situation to Peter McCormack - https://youtu.be/QBWYp-cBr4o
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Dr Jordan Peterson and Dr Julie Ponesse (also Canadians in Canada) speak openly about what is going on https://t.co/2T7A4VEek1
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Even Canadians living in China speak up: https://www.youtube.com/watch?v=xvDvJWdlD1E
Meanwhile in Turkey...
Joe Blogs has been giving blow by blow updates of the deteriorating sitation over the last weeks. What is happening to Turkey will come to many countries - sooner than you might imagine. Watch and learn here, here and here - more on his channel.
EU Citizens should be aware and lobby their MPs
Dropping of all C-19 restrictions is a tactic to stop people thinking about them; meanwhile the politicians are taking steps to get all of the emergency restrictions codified into normal law so that they can be deployed on you any time or all the time in future.\ Act now - or lose all freedoms - your choice - watch here or click below for the explainer.
More on war - recall our discussion last week
War steals and destroys the wealth of generations. We have been here before - remember World Wars 1 and 2...
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Dr Mattias Desmet explains how mass formation psychosis happens and how he became aware: https://www.youtube.com/watch?v=CRo-ieBEw-8
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Be aware of this well known and much abused psycholgical experiment - rats in a cage - explained by Dr Christ Martensen: https://www.youtube.com/watch?v=7kSBdMXQkPI
To remain silent is wrong - to deny the rights of others to discuss and challenge (and even to punish or coerce them) is a crime in support of the biger crime. Each of us has a choice - choose wisely.
Could you have known about this?
"The Matrix is a system, Neo. That system is our enemy. But when you're inside, you look around, what do you see? Businessmen, teachers, lawyers, carpenters. The very minds of the people we are trying to save. But until we do, these people are still a part of that system and that makes them our enemy. You have to understand, most of these people are not ready to be unplugged. And many of them are so inert, so hopelessly dependent on the system that they will fight to protect it."
"Unfortunately, no one can be told what the Matrix is. You have to see it for yourself."
A closing thought...
Look closely at the cover of the Economist magazine released in December 2018 - The World in 2019 - see how many of those things have already come true.
In case this is too difficult for you - some things to note: Four horsemen of the apacalypse, Statue of Liberty wearing a facemask, Vetruvian Man with QR code (Vaccine passport), DNA mark on his arm, wearing virtual reality glasses... The animal bottom right is a Pangolin. Scales of Justice are well tipped/skewed, facial recognition, electric cars, Putin's pipelines, China and Brexit feature highly along with the lieing media (Pinnochio) and #metoo. I smell Predictive Programming.
- More insights in the explainer here (backup copy here) - including why it is backwards...
That's it!
No one can be told what The Matrix is.\ You have to see it for yourself.**
Do share this newsletter with any of your friends and family who might be interested.
You can also email me at: LetterFrom@rogerprice.me
💡Enjoy the newsletters in your own language : Dutch, French, German, Serbian, Chinese Traditional & Simplified, Thai and Burmese.
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-
@ c9badfea:610f861a
2025-05-20 17:05:41- Install YTDLnis (it's free and open source)
- Launch the app and allow notifications and storage access if prompted
- Go to any supported website or use the YouTube, Instagram, X, or Facebook app
- Tap Share on the post or website URL and select YTDLnis as the sharing destination
- Adjust the settings if desired and tap Download
- You'll be notified when the download finishes
- Enjoy uninterrupted watching!
ℹ️ This app uses
yt-dlp
internally and it's also available as a standalone CLI tool -
@ b8851a06:9b120ba1
2024-12-16 16:38:53Brett Scott’s recent metaphor of Bitcoin as a wrestling gimmick, reliant on hype and dollar-dependence, reduces a groundbreaking monetary innovation to shallow theatrics. Let’s address his key missteps with hard facts.
1. Bitcoin Isn’t an Asset in the System—It’s the System
Scott claims Bitcoin competes with stocks, bonds, and gold in a financial "wrestling ring." This misrepresents Bitcoin’s purpose: it’s not an investment vehicle but a decentralized monetary network. Unlike assets, Bitcoin enables permissionless global value transfer, censorship resistance, and self-sovereign wealth storage—capabilities fiat currencies cannot match.
Fact: Bitcoin processes over $8 billion in daily transactions, settling more value annually than PayPal and Venmo combined. It isn’t competing with assets but offering an alternative to the monetary system itself.
2. Volatility Is Growth, Not Failure
Scott critiques Bitcoin’s price volatility as evidence of its unsuitability as "money." However, volatility is a natural stage in the adoption of transformative technology. Bitcoin is scaling from niche use to global recognition. Its growing liquidity and adoption already make it more stable than fiat in inflationary economies.
Fact: Bitcoin’s annualized volatility has decreased by 53% since 2013 and continues to stabilize as adoption rises. It’s the best-performing asset of the last decade, with an average annual ROI of 147%—far outpacing stocks, gold, and real estate. As of February 2024, Bitcoin's volatility was lower than roughly 900 stocks in the S and P 1500 and 190 stocks in the S and P 500. It continues to stabilize as adoption rises, making it an increasingly attractive store of value.
3. Bitcoin’s Utility Extends Beyond Countertrade
Scott diminishes Bitcoin to a "countertrade token," reliant on its dollar price. This ignores Bitcoin’s primary functions:
- Medium of exchange: Used in remittances, cross-border payments, and for the unbanked in Africa today (e.g., Ghana, Nigeria, Kenya).
- Store of value: A hedge against inflation and failing fiat systems (e.g., Argentina, Lebanon, Turkey).
- Decentralized reserve asset: Held by over 1,500 public and private institutions, including Tesla, MicroStrategy, and nations like El Salvador.
Fact: Lightning Network adoption has grown 1,500% in capacity since 2021, enabling microtransactions and reducing fees—making Bitcoin increasingly viable for everyday use. As of December 2024, Sub-Saharan Africa accounts for 2.7% of global cryptocurrency transaction volume, with Nigeria ranking second worldwide in crypto adoption. This demonstrates Bitcoin's real-world utility beyond mere speculation.
4. Bitcoin Isn’t Controlled by the Dollar
Scott suggests Bitcoin strengthens the dollar system rather than challenging it. In truth, Bitcoin exists outside the control of any nation-state. It offers people in authoritarian regimes and hyperinflationary economies a lifeline when their local currencies fail.
Fact: Over 70% of Bitcoin transactions occur outside the U.S., with adoption highest in countries like Nigeria, India, Venezuela, China, the USA and Ukraine—where the dollar isn’t dominant but government overreach and fiat collapse are. This global distribution shows Bitcoin's independence from dollar dominance.
5. Hype vs. Adoption
Scott mocks Bitcoin’s evangelists but fails to acknowledge its real-world traction. Bitcoin adoption isn’t driven by hype but by trustless, verifiable technology solving real-world problems. People don’t buy Bitcoin for "kayfabe"; they buy it for what it does.
Fact: Bitcoin wallets reached 500 million globally in 2023. El Salvador’s Chivo wallet onboarded 4 million users (60% of the population) within a year—far from a gimmick in action. As of December 2024, El Salvador's Bitcoin portfolio has crossed $632 million in value, with an unrealized profit of $362 million, demonstrating tangible benefits beyond hype.
6. The Dollar’s Coercive Monopoly vs. Bitcoin’s Freedom
Scott defends fiat money as more than "just numbers," backed by state power. He’s correct: fiat relies on coercion, legal mandates, and inflationary extraction. Bitcoin, by contrast, derives value from transparent scarcity (capped at 21 million coins) and decentralized consensus, not military enforcement or political whims.
Fact: Bitcoin’s inflation rate is just 1.8%—lower than gold or the U.S. dollar—and will approach 0% by 2140. No fiat currency can match this predictability. As of December 2024, Bitcoin processes an average of 441,944 transactions per day, showcasing its growing role as a global, permissionless monetary system free from centralized control.
Conclusion: The Revolution Is Real
Scott’s "wrestling gimmick" analogy trivializes Bitcoin’s purpose and progress. Bitcoin isn’t just a speculative asset—it’s the first truly decentralized, apolitical form of money. Whether as a hedge against inflation, a tool for financial inclusion, or a global settlement network, Bitcoin is transforming how we think about money.
Dismiss it as a gimmick at your peril. The world doesn’t need another asset—it needs Bitcoin.
"If you don't believe me or don't get it, I don't have time to try to convince you, sorry." Once Satoshi said.
There is no second best.
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@ a5ee4475:2ca75401
2025-05-19 01:11:59clients #link #list #english #article #finalversion #descentralismo
*These clients are generally applications on the Nostr network that allow you to use the same account, regardless of the app used, keeping your messages and profile intact.
**However, you may need to meet certain requirements regarding access and account NIP for some clients, so that you can access them securely and use their features correctly.
CLIENTS
Twitter like
- Nostrmo - [source] 🌐💻(🐧🪟🍎)🍎🤖(on zapstore)
- Coracle - Super App [source] 🌐🤖(on zapstore)
- Amethyst - Super App with note edit, delete and other stuff with Tor [source] 🤖(on zapstore)
- Primal - Social and wallet [source] 🌐🍎🤖(on zapstore)
- Iris - [source] 🌐🤖🍎
- Current - [source] 🤖🍎
- FreeFrom 🤖🍎
- Openvibe - Nostr and others (new Plebstr) [source] 🤖🍎
- Snort 🌐(🤖[early access]) [onion] [source]
- Damus 🍎 [source]
- Nos 🍎 [source]
- Nostur 🍎 [source]
- NostrBand 🌐 [info] [source]
- Yana [source] 🌐💻(🐧) 🍎🤖(on zapstore)
- Nostribe [on development] 🌐 [source]
- Lume 💻(🐧🪟🍎) [info] [source]
- Gossip - [source] 💻(🐧🪟🍎)
- noStrudel - Gamified Experience [onion] [info/source] 🌐
- [Nostrudel Next] - [onion]
- moStard - Nostrudel with Monero [onion] [info/source] 🌐
- Camelus - [source] 🤖 [early access]
Community
- CCNS - Community Curated Nostr Stuff [source]
- Nostr Kiwi [creator] 🌐
- Satellite [info] 🌐
- Flotilla - [source] 🌐🐧🤖(on zapstore)
- Chachi - [source] 🌐
- Futr - Coded in haskell [source] 🐧 (others soon)
- Soapbox - Comunnity server [info] [source] 🌐
- Ditto - Soapbox community server 🌐 [source] 🌐
- Cobrafuma - Nostr brazilian community on Ditto [info] 🌐
- Zapddit - Reddit like [source] 🌐
- Voyage (Reddit like) [on development] 🤖
Wiki
- Wikifreedia - Wiki Dark mode [source] 🌐
- Wikinostr - Wiki with tabs clear mode [source] 🌐
- Wikistr - Wiki clear mode [info] [source] 🌐
Search
- Keychat - Signal-like chat with AI and browser [source] 💻(🐧🪟🍎) - 📱(🍎🤖{on zapstore})
- Spring - Browser for Nostr apps and other sites [source] 🤖 (on zapstore)
- Advanced nostr search - Advanced note search by isolated terms related to a npub profile [source] 🌐
- Nos Today - Global note search by isolated terms [info] [source] 🌐
- Nostr Search Engine - API for Nostr clients [source]
- Ntrends - Trending notes and profiles 🌐
Website
- Nsite - Nostr Site [onion] [info] [source]
- Nsite Gateway - Nostr Site Gateway [source]
- Npub pro - Your site on Nostr [source]
App Store
ZapStore - Permitionless App Store [source] 🤖 💻(🐧🍎)
Video and Live Streaming
- Flare - Youtube like 🌐 [source]
- ZapStream - Lives, videos, shorts and zaps (NIP-53) [source] 🌐 🤖(lives only | Amber | on zapstore)
- Swae - Live streaming [source] (on development) ⏳
Post Aggregator - Kinostr - Nostr Cinema with #kinostr [english] [author] 🌐 - Stremstr - Nostr Cinema with #kinostr [english] [source] 📱 (on development) ⏳
Link Agreggator - Kinostr - #kinostr - Nostr Cinema Profile with links [English] - Equinox - Nostr Cinema Community with links [Portuguese]
Audio and Podcast Transmission
- Castr - Your npub as podcast feed [source]
- Nostr Nests - Audio Chats [source] 🌐
- Fountain - Podcast [source] 🤖🍎
- Corny Chat - Audio Chat [source] 🌐
Music
- Tidal - Music Streaming [source] [about] [info] 🤖🍎🌐
- Wavlake - Music Streaming [source] 🌐(🤖🍎 [early access])
- Tunestr - Musical Events [source] [about] 🌐
- Stemstr - Musical Colab (paid to post) [source] [about] 🌐
Images
- Lumina - Trending images and pictures [source] 🌐
- Pinstr - Pinterest like [source] 🌐
- Slidestr - DeviantArt like [source] 🌐
- Memestr - ifunny like [source] 🌐
Download and Upload
Documents, graphics and tables
- Mindstr - Mind maps [source] 🌐
- Docstr - Share Docs [info] [source] 🌐
- Formstr - Share Forms [info] 🌐
- Sheetstr - Share Spreadsheets [source] 🌐
- Slide Maker - Share slides 🌐 [Advice: Slide Maker https://zaplinks.lol/ site is down]
Health
- Sobrkey - Sobriety and mental health [source] 🌐
- Runstr - Running app [source] 🌐
- NosFabrica - Finding ways for your health data 🌐
- LazerEyes - Eye prescription by DM [source] 🌐
Forum
- OddBean - Hacker News like [info] [source] 🌐
- LowEnt - Forum [info] 🌐
- Swarmstr - Q&A / FAQ [info] 🌐
- Staker News - Hacker News like 🌐 [info]
Direct Messenges (DM)
- 0xchat 🤖🍎 [source]
- Nostr Chat 🌐🍎 [source]
- Blowater 🌐 [source]
- Anigma (new nostrgram) - Telegram based [on development] [source]
Reading
- Oracolo - A minimalist Nostr html blog [source]
- nRSS - Nostr RSS reader 🌐
- Highlighter - Insights with a highlighted read [info] 🌐
- Zephyr - Calming to Read [info] 🌐
- Flycat - Clean and Healthy Feed [info] 🌐
- Nosta - Check Profiles [on development] [info] 🌐
- Alexandria - e-Reader and Nostr Knowledge Base (NKB) [source] 🌐
Writing
- Habla - Blog [info] 🌐
- Blogstack - Blog [info]🌐
- YakiHonne - Articles and News [info] 🌐🍎🤖(on zapstore)
Lists
- Following - Users list [source] 🌐
- Nostr Unfollower - Nostr Unfollower
- Listr - Lists [source] 🌐
- Nostr potatoes - Movies List [source] 💻(numpy)
Market and Jobs
- Shopstr - Buy and Sell [onion] [source] 🌐
- Nostr Market - Buy and Sell 🌐
- Plebeian Market - Buy and Sell [source] 🌐
- Ostrich Work - Jobs [source] 🌐
- Nostrocket - Jobs [source] 🌐
Data Vending Machines - DVM (NIP90)
(Data-processing tools)
Games
- Chesstr - Chess 🌐 [source]
- Jestr - Chess [source] 🌐
- Snakestr - Snake game [source] 🌐
- Snakes on a Relay - Multiplayer Snake game like slither.io [source] 🌐
ENGINES - DEG Mods - Decentralized Game Mods [info] [source] 🌐 - NG Engine - Nostr Game Engine [source] 🌐 - JmonkeyEngine - Java game engine [source] 🌐
Customization
Like other Services
- Olas - Instagram like [source] 🌐🍎🤖(on zapstore)
- Nostree - Linktree like 🌐
- Rabbit - TweetDeck like [info] 🌐
- Zaplinks - Nostr links 🌐
- Omeglestr - Omegle-like Random Chats [source] 🌐
General Uses
- Njump - HTML text gateway source 🌐
- Filestr - HTML midia gateway [source] 🌐
- W3 - Nostr URL shortener [source] 🌐
- Playground - Test Nostr filters [source] 🌐
Places
- Wherostr - Travel and show where you are
- Arc Map (Mapstr) - Bitcoin Map [info]
Driver and Delivery
- RoadRunner - Uber like [on development] ⏱️
- Nostrlivery - iFood like [on development] ⏱️
⚠️ SCAM ⚠️ | Arcade City - Uber like [source]
OTHER STUFF
Lightning Wallets (zap)
- Alby - Native and extension [info] 🌐
- ZBD - Gaming and Social [info] [source] 🤖🍎
- Wallet of Satoshi - Simplest Lightning Wallet [info] 🤖🍎
- Minibits - Cashu mobile wallet [info] 🤖
- Blink - Opensource custodial wallet (KYC over 1000 usd) [source] 🤖🍎
- LNbits - App and extesion [source] 🤖🍎💻
- Zeus - [info] [source] 🤖🍎
Without Zap - Wassabi Wallet - Privacy-focused and non-custodial with Nostr Update Manager [source]
Exchange
Media Server (Upload Links)
audio, image and video
Connected with Nostr (NIP):
- Nostr Build - Free and paid Upload [info] [source] 🌐
- NostrMedia - Written in Go with Nip 96 / Blossom (free and paid) [info] [source]
- Nostr Check - [info] [source] 🌐
- NostPic - [info] [source] 🌐
- Sovbit - Free and paid upload [info] [source] 🌐
- Voidcat - Nip-96 and Blossom [source] 🌐
- Primal Media - Primal Media Uploader [source] 🌐
Blossom - Your Media Safer
- Primal Blossom 🌐
- NostrBuild Blossom - Free upload (max 100MiB) and paid [info] [source] 🌐
Paid Upload Only
- Satellite CDN - prepaid upload (max 5GB each) [info] [source] 🌐
Without Nostr NIP:
- Pomf - Upload larger videos (max 1GB) [source]
- Catbox - max 200 MB [source]
- x0 - max 512 MiB [source]
Donation and payments
- Zapper - Easy Zaps [source] 🌐
- Autozap [source] 🌐
- Zapmeacoffee 🌐
- Nostr Zap 💻(numpy)
- Creatr - Creators subscription 🌐
- Geyzer - Crowdfunding [info] [source] 🌐
- Heya! - Crowdfunding [source]
Security
- Secret Border - Generate offline keys 💻(java)
- Umbrel - Your private relay [source] 🌐
Key signing/login and Extension
- Amber - Key signing [source] 🤖(on zapstore)
- Nowser - Account access keys 📱(🤖🍎) 💻(🐧🍎🪟)
- Nos2x - Account access keys 🌐
- Nsec.app 🌐 [info]
- Lume - [info] [source] 🐧🪟🍎
- Satcom - Share files to discuss - [info] 🌐
- KeysBand - Multi-key signing [source] 🌐
Code
- Stacks - AI Templates [info] [source] 🌐
- Nostrify - Share Nostr Frameworks 🌐
- Git Workshop (github like) [experimental] 🌐
- Gitstr (github like) [on development] ⏱️
- Osty [on development] [info] 🌐
- Python Nostr - Python Library for Nostr
- Sybil - Creating, managing and test Nostr events [on development] ⏱️
Relay Check and Cloud
- Nostr Watch - See your relay speed 🌐
- NosDrive - Nostr Relay that saves to Google Drive
Bidges and Getways
- Matrixtr Bridge - Between Matrix & Nostr
- Mostr - Between Nostr & Fediverse
- Nostrss - RSS to Nostr
- Rsslay - Optimized RSS to Nostr [source]
- Atomstr - RSS/Atom to Nostr [source]
Useful Profiles and Trends
nostr-voice - Voice note (just some clients)
NOT RELATED TO NOSTR
Voca - Text-to-Speech App for GrapheneOS [source] 🤖(on zapstore)
Android Keyboards
Personal notes and texts
Front-ends
- Nitter - Twitter / X without your data [source]
- NewPipe - Youtube, Peertube and others, without account & your data [source] 🤖
- Piped - Youtube web without you data [source] 🌐
Other Services
- Brave - Browser [source]
- DuckDuckGo - Search [source]
- LLMA - Meta - Meta open source AI [source]
- DuckDuckGo AI Chat - Famous AIs without Login [source]
- Proton Mail - Mail [source]
Other open source index: Degoogled Apps
Some other Nostr index on:
-
@ 87f5e1d9:e251d8f4
2025-05-17 13:13:42In the realm of cryptocurrency, the stakes are incredibly high, and losing access to your digital assets can be a daunting experience. But don’t worry — cryptrecver.com is here to transform that nightmare into a reality! With expert-led recovery services and leading-edge technology, Crypt Recver specializes in helping you regain access to your lost Bitcoin and other cryptocurrencies.
Why Choose Crypt Recver? 🤔 🔑 Expertise You Can Trust At Crypt Recver, we blend advanced technology with skilled engineers who have a solid track record in crypto recovery. Whether you’ve forgotten your passwords, lost your private keys, or encountered issues with damaged hardware wallets, our team is ready to assist.
⚡ Fast Recovery Process Time is crucial when recovering lost funds. Crypt Recver’s systems are designed for speed, enabling quick recoveries — allowing you to return to what matters most: trading and investing.
🎯 High Success Rate With a success rate exceeding 90%, our recovery team has aided numerous clients in regaining access to their lost assets. We grasp the complexities of cryptocurrency and are committed to providing effective solutions.
🛡️ Confidential & Secure Your privacy is paramount. All recovery sessions at Crypt Recver are encrypted and completely confidential. You can trust us with your information, knowing we uphold the highest security standards.
🔧 Advanced Recovery Tools We employ proprietary tools and techniques to tackle complex recovery scenarios, from retrieving corrupted wallets to restoring coins from invalid addresses. No matter the challenge, we have a solution.
Our Recovery Services Include: 📈 Bitcoin Recovery: Lost access to your Bitcoin wallet? We can assist in recovering lost wallets, private keys, and passphrases. Transaction Recovery: Mistaken transfers, lost passwords, or missing transaction records — let us help you reclaim your funds! Cold Wallet Restoration: Did your cold wallet fail? We specialize in safely extracting assets. Private Key Generation: Forgotten your private key? We can help you generate new keys linked to your funds without compromising security. Don’t Let Lost Crypto Ruin Your Day! 🕒 With an estimated 3 to 3.4 million BTC lost forever, it’s essential to act quickly when facing access issues. Whether you’ve been affected by a dust attack or simply forgotten your key, Crypt Recver provides the support you need to reclaim your digital assets.
🚀 Start Your Recovery Now! Ready to retrieve your cryptocurrency? Don’t let uncertainty hold you back! 👉 Request Wallet Recovery Help Today!cryptrecver.com
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Trust Crypt Recver for the best crypto recovery service — get back to trading with confidence! 💪In the realm of cryptocurrency, the stakes are incredibly high, and losing access to your digital assets can be a daunting experience. But don’t worry — cryptrecver.com is here to transform that nightmare into a reality! With expert-led recovery services and leading-edge technology, Crypt Recver specializes in helping you regain access to your lost Bitcoin and other cryptocurrencies.
# Why Choose Crypt Recver? 🤔
🔑 Expertise You Can Trust\ At Crypt Recver, we blend advanced technology with skilled engineers who have a solid track record in crypto recovery. Whether you’ve forgotten your passwords, lost your private keys, or encountered issues with damaged hardware wallets, our team is ready to assist.
⚡ Fast Recovery Process\ Time is crucial when recovering lost funds. Crypt Recver’s systems are designed for speed, enabling quick recoveries — allowing you to return to what matters most: trading and investing.
🎯 High Success Rate\ With a success rate exceeding 90%, our recovery team has aided numerous clients in regaining access to their lost assets. We grasp the complexities of cryptocurrency and are committed to providing effective solutions.
🛡️ Confidential & Secure\ Your privacy is paramount. All recovery sessions at Crypt Recver are encrypted and completely confidential. You can trust us with your information, knowing we uphold the highest security standards.
🔧 Advanced Recovery Tools\ We employ proprietary tools and techniques to tackle complex recovery scenarios, from retrieving corrupted wallets to restoring coins from invalid addresses. No matter the challenge, we have a solution.
# Our Recovery Services Include: 📈
- Bitcoin Recovery: Lost access to your Bitcoin wallet? We can assist in recovering lost wallets, private keys, and passphrases.
- Transaction Recovery: Mistaken transfers, lost passwords, or missing transaction records — let us help you reclaim your funds!
- Cold Wallet Restoration: Did your cold wallet fail? We specialize in safely extracting assets.
- Private Key Generation: Forgotten your private key? We can help you generate new keys linked to your funds without compromising security.
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@ 57d1a264:69f1fee1
2025-05-20 06:15:51Deliberate (?) trade-offs we make for the sake of output speed.
... By sacrificing depth in my learning, I can produce substantially more work. I’m unsure if I’m at the correct balance between output quantity and depth of learning. This uncertainty is mainly fueled by a sense of urgency due to rapidly improving AI models. I don’t have time to learn everything deeply. I love learning, but given current trends, I want to maximize immediate output. I’m sacrificing some learning in classes for more time doing outside work. From a teacher’s perspective, this is obviously bad, but from my subjective standpoint, it’s unclear.
Finding the balance between learning and productivity. By trade, one cannot be productive in specific areas without first acquire the knowledge to define the processes needed to deliver. Designing the process often come on a try and fail dynamic that force us to learn from previous mistakes.
I found this little journal story fun but also little sad. Vincent's realization, one of us trading his learnings to be more productive, asking what is productivity without quality assurance?
Inevitably, parts of my brain will degenerate and fade away, so I need to consciously decide what I want to preserve or my entire brain will be gone. What skills am I NOT okay with offloading? What do I want to do myself?
Read Vincent's journal https://vvvincent.me/llms-are-making-me-dumber/
https://stacker.news/items/984361
-
@ 06b7819d:d1d8327c
2024-12-12 11:43:36The Peano axioms are a set of rules that define the natural numbers (like 0, 1, 2, 3, and so on) in a logical way. Here’s a simplified explanation: 1. There is a first number: There is a number called zero, and it is the starting point for all natural numbers. 2. Each number has a next number: Every number has a unique “successor,” or the number that comes after it (like 1 comes after 0, 2 comes after 1, etc.). 3. Zero is special: Zero is not the “next” number of any other number. This means the sequence of natural numbers doesn’t loop back to zero. 4. No two numbers are the same if they have different successors: If two numbers have the same “next” number, then they must actually be the same number. 5. Patterns hold for all numbers: If something is true for zero, and it stays true when moving from one number to the next, then it must be true for all numbers.
These principles lay the groundwork for understanding and working with the natural numbers systematically.
-
@ fe32298e:20516265
2024-12-16 20:59:13Today I learned how to install NVapi to monitor my GPUs in Home Assistant.
NVApi is a lightweight API designed for monitoring NVIDIA GPU utilization and enabling automated power management. It provides real-time GPU metrics, supports integration with tools like Home Assistant, and offers flexible power management and PCIe link speed management based on workload and thermal conditions.
- GPU Utilization Monitoring: Utilization, memory usage, temperature, fan speed, and power consumption.
- Automated Power Limiting: Adjusts power limits dynamically based on temperature thresholds and total power caps, configurable per GPU or globally.
- Cross-GPU Coordination: Total power budget applies across multiple GPUs in the same system.
- PCIe Link Speed Management: Controls minimum and maximum PCIe link speeds with idle thresholds for power optimization.
- Home Assistant Integration: Uses the built-in RESTful platform and template sensors.
Getting the Data
sudo apt install golang-go git clone https://github.com/sammcj/NVApi.git cd NVapi go run main.go -port 9999 -rate 1 curl http://localhost:9999/gpu
Response for a single GPU:
[ { "index": 0, "name": "NVIDIA GeForce RTX 4090", "gpu_utilisation": 0, "memory_utilisation": 0, "power_watts": 16, "power_limit_watts": 450, "memory_total_gb": 23.99, "memory_used_gb": 0.46, "memory_free_gb": 23.52, "memory_usage_percent": 2, "temperature": 38, "processes": [], "pcie_link_state": "not managed" } ]
Response for multiple GPUs:
[ { "index": 0, "name": "NVIDIA GeForce RTX 3090", "gpu_utilisation": 0, "memory_utilisation": 0, "power_watts": 14, "power_limit_watts": 350, "memory_total_gb": 24, "memory_used_gb": 0.43, "memory_free_gb": 23.57, "memory_usage_percent": 2, "temperature": 36, "processes": [], "pcie_link_state": "not managed" }, { "index": 1, "name": "NVIDIA RTX A4000", "gpu_utilisation": 0, "memory_utilisation": 0, "power_watts": 10, "power_limit_watts": 140, "memory_total_gb": 15.99, "memory_used_gb": 0.56, "memory_free_gb": 15.43, "memory_usage_percent": 3, "temperature": 41, "processes": [], "pcie_link_state": "not managed" } ]
Start at Boot
Create
/etc/systemd/system/nvapi.service
:``` [Unit] Description=Run NVapi After=network.target
[Service] Type=simple Environment="GOPATH=/home/ansible/go" WorkingDirectory=/home/ansible/NVapi ExecStart=/usr/bin/go run main.go -port 9999 -rate 1 Restart=always User=ansible
Environment="GPU_TEMP_CHECK_INTERVAL=5"
Environment="GPU_TOTAL_POWER_CAP=400"
Environment="GPU_0_LOW_TEMP=40"
Environment="GPU_0_MEDIUM_TEMP=70"
Environment="GPU_0_LOW_TEMP_LIMIT=135"
Environment="GPU_0_MEDIUM_TEMP_LIMIT=120"
Environment="GPU_0_HIGH_TEMP_LIMIT=100"
Environment="GPU_1_LOW_TEMP=45"
Environment="GPU_1_MEDIUM_TEMP=75"
Environment="GPU_1_LOW_TEMP_LIMIT=140"
Environment="GPU_1_MEDIUM_TEMP_LIMIT=125"
Environment="GPU_1_HIGH_TEMP_LIMIT=110"
[Install] WantedBy=multi-user.target ```
Home Assistant
Add to Home Assistant
configuration.yaml
and restart HA (completely).For a single GPU, this works: ``` sensor: - platform: rest name: MYPC GPU Information resource: http://mypc:9999 method: GET headers: Content-Type: application/json value_template: "{{ value_json[0].index }}" json_attributes: - name - gpu_utilisation - memory_utilisation - power_watts - power_limit_watts - memory_total_gb - memory_used_gb - memory_free_gb - memory_usage_percent - temperature scan_interval: 1 # seconds
- platform: template sensors: mypc_gpu_0_gpu: friendly_name: "MYPC {{ state_attr('sensor.mypc_gpu_information', 'name') }} GPU" value_template: "{{ state_attr('sensor.mypc_gpu_information', 'gpu_utilisation') }}" unit_of_measurement: "%" mypc_gpu_0_memory: friendly_name: "MYPC {{ state_attr('sensor.mypc_gpu_information', 'name') }} Memory" value_template: "{{ state_attr('sensor.mypc_gpu_information', 'memory_utilisation') }}" unit_of_measurement: "%" mypc_gpu_0_power: friendly_name: "MYPC {{ state_attr('sensor.mypc_gpu_information', 'name') }} Power" value_template: "{{ state_attr('sensor.mypc_gpu_information', 'power_watts') }}" unit_of_measurement: "W" mypc_gpu_0_power_limit: friendly_name: "MYPC {{ state_attr('sensor.mypc_gpu_information', 'name') }} Power Limit" value_template: "{{ state_attr('sensor.mypc_gpu_information', 'power_limit_watts') }}" unit_of_measurement: "W" mypc_gpu_0_temperature: friendly_name: "MYPC {{ state_attr('sensor.mypc_gpu_information', 'name') }} Temperature" value_template: "{{ state_attr('sensor.mypc_gpu_information', 'temperature') }}" unit_of_measurement: "°C" ```
For multiple GPUs: ``` rest: scan_interval: 1 resource: http://mypc:9999 sensor: - name: "MYPC GPU0 Information" value_template: "{{ value_json[0].index }}" json_attributes_path: "$.0" json_attributes: - name - gpu_utilisation - memory_utilisation - power_watts - power_limit_watts - memory_total_gb - memory_used_gb - memory_free_gb - memory_usage_percent - temperature - name: "MYPC GPU1 Information" value_template: "{{ value_json[1].index }}" json_attributes_path: "$.1" json_attributes: - name - gpu_utilisation - memory_utilisation - power_watts - power_limit_watts - memory_total_gb - memory_used_gb - memory_free_gb - memory_usage_percent - temperature
-
platform: template sensors: mypc_gpu_0_gpu: friendly_name: "MYPC GPU0 GPU" value_template: "{{ state_attr('sensor.mypc_gpu0_information', 'gpu_utilisation') }}" unit_of_measurement: "%" mypc_gpu_0_memory: friendly_name: "MYPC GPU0 Memory" value_template: "{{ state_attr('sensor.mypc_gpu0_information', 'memory_utilisation') }}" unit_of_measurement: "%" mypc_gpu_0_power: friendly_name: "MYPC GPU0 Power" value_template: "{{ state_attr('sensor.mypc_gpu0_information', 'power_watts') }}" unit_of_measurement: "W" mypc_gpu_0_power_limit: friendly_name: "MYPC GPU0 Power Limit" value_template: "{{ state_attr('sensor.mypc_gpu0_information', 'power_limit_watts') }}" unit_of_measurement: "W" mypc_gpu_0_temperature: friendly_name: "MYPC GPU0 Temperature" value_template: "{{ state_attr('sensor.mypc_gpu0_information', 'temperature') }}" unit_of_measurement: "C"
-
platform: template sensors: mypc_gpu_1_gpu: friendly_name: "MYPC GPU1 GPU" value_template: "{{ state_attr('sensor.mypc_gpu1_information', 'gpu_utilisation') }}" unit_of_measurement: "%" mypc_gpu_1_memory: friendly_name: "MYPC GPU1 Memory" value_template: "{{ state_attr('sensor.mypc_gpu1_information', 'memory_utilisation') }}" unit_of_measurement: "%" mypc_gpu_1_power: friendly_name: "MYPC GPU1 Power" value_template: "{{ state_attr('sensor.mypc_gpu1_information', 'power_watts') }}" unit_of_measurement: "W" mypc_gpu_1_power_limit: friendly_name: "MYPC GPU1 Power Limit" value_template: "{{ state_attr('sensor.mypc_gpu1_information', 'power_limit_watts') }}" unit_of_measurement: "W" mypc_gpu_1_temperature: friendly_name: "MYPC GPU1 Temperature" value_template: "{{ state_attr('sensor.mypc_gpu1_information', 'temperature') }}" unit_of_measurement: "C"
```
Basic entity card:
type: entities entities: - entity: sensor.mypc_gpu_0_gpu secondary_info: last-updated - entity: sensor.mypc_gpu_0_memory secondary_info: last-updated - entity: sensor.mypc_gpu_0_power secondary_info: last-updated - entity: sensor.mypc_gpu_0_power_limit secondary_info: last-updated - entity: sensor.mypc_gpu_0_temperature secondary_info: last-updated
Ansible Role
```
-
name: install go become: true package: name: golang-go state: present
-
name: git clone git: repo: "https://github.com/sammcj/NVApi.git" dest: "/home/ansible/NVapi" update: yes force: true
go run main.go -port 9999 -rate 1
-
name: install systemd service become: true copy: src: nvapi.service dest: /etc/systemd/system/nvapi.service
-
name: Reload systemd daemons, enable, and restart nvapi become: true systemd: name: nvapi daemon_reload: yes enabled: yes state: restarted ```
-
@ 40bdcc08:ad00fd2c
2025-05-06 14:24:22Introduction
Bitcoin’s
OP_RETURN
opcode, a mechanism for embedding small data in transactions, has ignited a significant debate within the Bitcoin community. Originally designed to support limited metadata while preserving Bitcoin’s role as a peer-to-peer electronic cash system,OP_RETURN
is now at the center of proposals that could redefine Bitcoin’s identity. The immutable nature of Bitcoin’s timechain makes it an attractive platform for data storage, creating tension with those who prioritize its monetary function. This discussion, particularly around Bitcoin Core pull request #32406 (GitHub PR #32406), highlights a critical juncture for Bitcoin’s future.What is
OP_RETURN
?Introduced in 2014,
OP_RETURN
allows users to attach up to 80 bytes of data to a Bitcoin transaction. Unlike other transaction outputs,OP_RETURN
outputs are provably unspendable, meaning they don’t burden the Unspent Transaction Output (UTXO) set—a critical database for Bitcoin nodes. This feature was a compromise to provide a standardized, less harmful way to include metadata, addressing earlier practices that embedded data in ways that bloated the UTXO set. The 80-byte limit and restriction to oneOP_RETURN
output per transaction are part of Bitcoin Core’s standardness rules, which guide transaction relay and mining but are not enforced by the network’s consensus rules (Bitcoin Stack Exchange).Standardness vs. Consensus Rules
Standardness rules are Bitcoin Core’s default policies for relaying and mining transactions. They differ from consensus rules, which define what transactions are valid across the entire network. For
OP_RETURN
: - Consensus Rules: AllowOP_RETURN
outputs with data up to the maximum script size (approximately 10,000 bytes) and multiple outputs per transaction (Bitcoin Stack Exchange). - Standardness Rules: LimitOP_RETURN
data to 80 bytes and one output per transaction to discourage excessive data storage and maintain network efficiency.Node operators can adjust these policies using settings like
-datacarrier
(enables/disablesOP_RETURN
relay) and-datacarriersize
(sets the maximum data size, defaulting to 83 bytes to account for theOP_RETURN
opcode and pushdata byte). These settings allow flexibility but reflect Bitcoin Core’s default stance on limiting data usage.The Proposal: Pull Request #32406
Bitcoin Core pull request #32406, proposed by developer instagibbs, seeks to relax these standardness restrictions (GitHub PR #32406). Key changes include: - Removing Default Size Limits: The default
-datacarriersize
would be uncapped, allowing largerOP_RETURN
data without a predefined limit. - Allowing Multiple Outputs: The restriction to oneOP_RETURN
output per transaction would be lifted, with the total data size across all outputs subject to a configurable limit. - Deprecating Configuration Options: The-datacarrier
and-datacarriersize
settings are marked as deprecated, signaling potential removal in future releases, which could limit node operators’ ability to enforce custom restrictions.This proposal does not alter consensus rules, meaning miners and nodes can already accept transactions with larger or multiple
OP_RETURN
outputs. Instead, it changes Bitcoin Core’s default relay policy to align with existing practices, such as miners accepting non-standard transactions via services like Marathon Digital’s Slipstream (CoinDesk).Node Operator Flexibility
Currently, node operators can customize
OP_RETURN
handling: - Default Settings: Relay transactions with oneOP_RETURN
output up to 80 bytes. - Custom Settings: Operators can disableOP_RETURN
relay (-datacarrier=0
) or adjust the size limit (e.g.,-datacarriersize=100
). These options remain in #32406 but are deprecated, suggesting that future Bitcoin Core versions might not support such customization, potentially standardizing the uncapped policy.Arguments in Favor of Relaxing Limits
Supporters of pull request #32406 and similar proposals argue that the current restrictions are outdated and ineffective. Their key points include: - Ineffective Limits: Developers bypass the 80-byte limit using methods like Inscriptions, which store data in other transaction parts, often at higher cost and inefficiency (BitcoinDev Mailing List). Relaxing
OP_RETURN
could channel data into a more efficient format. - Preventing UTXO Bloat: By encouragingOP_RETURN
use, which doesn’t affect the UTXO set, the proposal could reduce reliance on harmful alternatives like unspendable Taproot outputs used by projects like Citrea’s Clementine bridge. - Supporting Innovation: Projects like Citrea require more data (e.g., 144 bytes) for security proofs, and relaxed limits could enable new Layer 2 solutions (CryptoSlate). - Code Simplification: Developers like Peter Todd argue that these limits complicate Bitcoin Core’s codebase unnecessarily (CoinGeek). - Aligning with Practice: Miners already process non-standard transactions, and uncapping defaults could improve fee estimation and reduce reliance on out-of-band services, as noted by ismaelsadeeq in the pull request discussion.In the GitHub discussion, developers like Sjors and TheCharlatan expressed support (Concept ACK), citing these efficiency and innovation benefits.
Arguments Against Relaxing Limits
Opponents, including prominent developers and community members, raise significant concerns about the implications of these changes: - Deviation from Bitcoin’s Purpose: Critics like Luke Dashjr, who called the proposal “utter insanity,” argue that Bitcoin’s base layer should prioritize peer-to-peer cash, not data storage (CoinDesk). Jason Hughes warned it could turn Bitcoin into a “worthless altcoin” (BeInCrypto). - Blockchain Bloat: Additional data increases the storage and processing burden on full nodes, potentially making node operation cost-prohibitive and threatening decentralization (CryptoSlate). - Network Congestion: Unrestricted data could lead to “spam” transactions, raising fees and hindering Bitcoin’s use for financial transactions. - Risk of Illicit Content: The timechain’s immutability means data, including potentially illegal or objectionable content, is permanently stored on every node. The 80-byte limit acts as a practical barrier, and relaxing it could exacerbate this issue. - Preserving Consensus: Developers like John Carvalho view the limits as a hard-won community agreement, not to be changed lightly.
In the pull request discussion, nsvrn and moth-oss expressed concerns about spam and centralization, advocating for gradual changes. Concept NACKs from developers like wizkid057 and Luke Dashjr reflect strong opposition.
Community Feedback
The GitHub discussion for pull request #32406 shows a divided community: - Support (Concept ACK): Sjors, polespinasa, ismaelsadeeq, miketwenty1, TheCharlatan, Psifour. - Opposition (Concept NACK): wizkid057, BitcoinMechanic, Retropex, nsvrn, moth-oss, Luke Dashjr. - Other: Peter Todd provided a stale ACK, indicating partial or outdated support.
Additional discussions on the BitcoinDev mailing list and related pull requests (e.g., #32359 by Peter Todd) highlight similar arguments, with #32359 proposing a more aggressive removal of all
OP_RETURN
limits and configuration options (GitHub PR #32359).| Feedback Type | Developers | Key Points | |---------------|------------|------------| | Concept ACK | Sjors, ismaelsadeeq, others | Improves efficiency, supports innovation, aligns with mining practices. | | Concept NACK | Luke Dashjr, wizkid057, others | Risks bloat, spam, centralization, and deviation from Bitcoin’s purpose. | | Stale ACK | Peter Todd | Acknowledges proposal but with reservations or outdated support. |
Workarounds and Their Implications
The existence of workarounds, such as Inscriptions, which exploit SegWit discounts to embed data, is a key argument for relaxing
OP_RETURN
limits. These methods are costlier and less efficient, often costing more thanOP_RETURN
for data under 143 bytes (BitcoinDev Mailing List). Supporters argue that formalizing largerOP_RETURN
data could streamline these use cases. Critics, however, see workarounds as a reason to strengthen, not weaken, restrictions, emphasizing the need to address underlying incentives rather than accommodating bypasses.Ecosystem Pressures
External factors influence the debate: - Miners: Services like Marathon Digital’s Slipstream process non-standard transactions for a fee, showing that market incentives already bypass standardness rules. - Layer 2 Projects: Citrea’s Clementine bridge, requiring more data for security proofs, exemplifies the demand for relaxed limits to support innovative applications. - Community Dynamics: The debate echoes past controversies, like the Ordinals debate, where data storage via inscriptions raised similar concerns about Bitcoin’s purpose (CoinDesk).
Bitcoin’s Identity at Stake
The
OP_RETURN
debate is not merely technical but philosophical, questioning whether Bitcoin should remain a focused monetary system or evolve into a broader data platform. Supporters see relaxed limits as a pragmatic step toward efficiency and innovation, while opponents view them as a risk to Bitcoin’s decentralization, accessibility, and core mission. The community’s decision will have lasting implications, affecting node operators, miners, developers, and users.Conclusion
As Bitcoin navigates this crossroads, the community must balance the potential benefits of relaxed
OP_RETURN
limits—such as improved efficiency and support for new applications—against the risks of blockchain bloat, network congestion, and deviation from its monetary roots. The ongoing discussion, accessible via pull request #32406 on GitHub (GitHub PR #32406). Readers are encouraged to explore the debate and contribute to ensuring that any changes align with Bitcoin’s long-term goals as a decentralized, secure, and reliable system. -
@ 0971cd37:53c969f4
2025-05-20 17:00:53ลดต้นทุนค่าไฟ เพิ่มความคุ้มค่าให้การขุด Bitcoin ที่บ้าน ในยุคที่ต้นทุนพลังงานสูงขึ้นอย่างต่อเนื่อง นักขุด Bitcoin ที่บ้าน หรือ Home Miner ต้องคิดให้รอบคอบก่อนเลือกเครื่องขุด เพราะ “แรงขุดสูงสุด” ไม่ได้แปลว่า “กำไรดีที่สุด” อีกต่อไป การเลือกเครื่องขุดไม่ใช่แค่ดูแค่แรงขุด (Hashrate) สูงสุดเท่านั้น แต่ต้องพิจารณาเรื่อง "การกินไฟ" และ "ความคุ้มค่าในการใช้งานระยะยาว" ด้วย ซึ่งสายหนึ่งที่ได้รับความนิยมมากขึ้นเรื่อย ๆ ก็คือ สาย Tuning Power หรือการจูนเครื่องขุดเพื่อให้ได้อัตราส่วน Hashrate/Watt ที่ดีที่สุด
เทรนด์ใหม่ของวงการขุดคือสาย Tuning Power หรือการปรับแต่งพลังงานของเครื่องขุด Bitcoin (ASIC) ให้ได้ ประสิทธิภาพ Hashrate ต่อการใช้พลังงาน (Efficiency) สูงที่สุด ซึ่งเหมาะอย่างยิ่งสำหรับการขุดในบ้านที่มีข้อจำกัดด้านค่าไฟ ความร้อน และ เสียงรบกวน
Tuning Power คืออะไร? Tuning Power คือการปรับลดแรงขุดของเครื่อง ASIC ลงเล็กน้อย เพื่อให้กินไฟน้อยลงแบบชัดเจน
ตัวอย่างเช่น Custom Firmware Braiins OS ใช้กับ Antminer S19jpro จากเดิมแรงขุด 104 TH/s กินไฟ 3,500W เมื่อปรับแต่งในส่วน Power Target จูนเหลือ 75 TH/s อาจกินไฟแค่ 1,600W-1,800W หลังจาก Tuning ค่าประสิทธิภาพ(Efficiency)ดีขึ้น เช่น จาก 32 J/TH เหลือเพียง 22–20 J/TH
หมายเหตุ: ค่า Efficiency ยิ่งต่ำ ยิ่งดี แปลว่าใช้พลังงานน้อยต่อ 1 TH
ทำไมต้อง Tuning Power? การจูนพลังงาน (Tuning Power) คือการปรับแต่งเครื่องขุด เช่น ASIC ให้ทำงานที่แรงขุดไม่เต็ม 100% แต่กินไฟน้อยลงอย่างชัดเจน ส่งผลให้:
- ประหยัดค่าไฟ โดยเฉพาะถ้าขุดในพื้นที่ต้นทุนพลังงานค่าไฟสูงหรือไม่มี TOU (Time of Use) และ เหมาะสำหรับผู้ใช้ไฟแบบ TOU ที่ค่าไฟกลางวัน ON-Peak แพง ต้องการขุดเลือกช่วงกลางคืนและวันหยุดเสาร์-อาทิตย์ และ วันหยุดราชการตามปกติ Off-Peak , ที่ใช้ระบบ Solar หรือมีระบบ Battery ต้องการประหยัดไฟ
- ลดความร้อนของเครื่อง ทำให้ยืดอายุการใช้งานและลดค่าใช้จ่ายด้าน ซำบำรุง ระบบระบายความร้อน
- เพิ่มความคุ้มค่า ในช่วงตลาดหมี ที่กำไรจากการขุดต่ำ การลดต้นทุนไฟฟ้าคือทางรอดหลัก
เครื่องขุด Bitcoin (ASIC) รุ่นไหน ที่เหมาะกับสาย Tuning Power
-
Antminer รองรับ Custom Firmware เช่น Braiins OS ที่เป็นยอดนิยมในการ Tuning Power
-
WhatsMiner M30-M60s Series ขึ้นไป ใช้โปรแกรม WhatsMinerTool เพื่อทำการ Tuning Power ได้โดยตรงไม่จำเป็นต้อง Custom Firmware
สรุป การเป็น Home Miner ที่ยั่งยืนไม่ได้ขึ้นกับว่าเครื่องขุดแรงแค่ไหน แต่ขึ้นกับว่า “จ่ายค่าไฟแล้วเหลือกำไรหรือไม่ หรือ จ่ายค่าไฟแล้วคุ้มค้ารายได้ Bitcoin จากการขุดจำนวนที่ได้รับมากขึ้นหรือไม่” การเลือกเครื่องขุดสำหรับสาย Tuning Power จึงเป็นทางเลือกที่ตอบโจทย์ผู้ที่ต้องการประสิทธิภาพสูงในต้นทุนที่ควบคุมได้โดยเฉพาะในยุคที่ตลาดผันผวน และ ค่าไฟฟ้าคือศัตรูตัวจริงของนักขุด
-
@ b83a28b7:35919450
2025-05-16 19:26:56This article was originally part of the sermon of Plebchain Radio Episode 111 (May 2, 2025) that nostr:nprofile1qyxhwumn8ghj7mn0wvhxcmmvqyg8wumn8ghj7mn0wd68ytnvv9hxgqpqtvqc82mv8cezhax5r34n4muc2c4pgjz8kaye2smj032nngg52clq7fgefr and I did with nostr:nprofile1qythwumn8ghj7ct5d3shxtnwdaehgu3wd3skuep0qyt8wumn8ghj7ct4w35zumn0wd68yvfwvdhk6tcqyzx4h2fv3n9r6hrnjtcrjw43t0g0cmmrgvjmg525rc8hexkxc0kd2rhtk62 and nostr:nprofile1qyxhwumn8ghj7mn0wvhxcmmvqyg8wumn8ghj7mn0wd68ytnvv9hxgqpq4wxtsrj7g2jugh70pfkzjln43vgn4p7655pgky9j9w9d75u465pqahkzd0 of the nostr:nprofile1qythwumn8ghj7ct5d3shxtnwdaehgu3wd3skuep0qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcqyqwfvwrccp4j2xsuuvkwg0y6a20637t6f4cc5zzjkx030dkztt7t5hydajn
Listen to the full episode here:
<<https://fountain.fm/episode/Ln9Ej0zCZ5dEwfo8w2Ho>>
Bitcoin has always been a narrative revolution disguised as code. White paper, cypherpunk lore, pizza‑day legends - every block is a paragraph in the world’s most relentless epic. But code alone rarely converts the skeptic; it’s the camp‑fire myth that slips past the prefrontal cortex and shakes hands with the limbic system. People don’t adopt protocols first - they fall in love with protagonists.
Early adopters heard the white‑paper hymn, but most folks need characters first: a pizza‑day dreamer; a mother in a small country, crushed by the cost of remittance; a Warsaw street vendor swapping złoty for sats. When their arcs land, the brain releases a neurochemical OP_RETURN which says, “I belong in this plot.” That’s the sly roundabout orange pill: conviction smuggled inside catharsis.
That’s why, from 22–25 May in Warsaw’s Kinoteka, the Bitcoin Film Fest is loading its reels with rebellion. Each documentary, drama, and animated rabbit‑hole is a stealth wallet, zipping conviction straight into the feels of anyone still clasped within the cold claw of fiat. You come for the plot, you leave checking block heights.
Here's the clip of the sermon from the episode:
nostr:nevent1qvzqqqqqqypzpwp69zm7fewjp0vkp306adnzt7249ytxhz7mq3w5yc629u6er9zsqqsy43fwz8es2wnn65rh0udc05tumdnx5xagvzd88ptncspmesdqhygcrvpf2
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@ 3bf0c63f:aefa459d
2025-04-25 18:55:52Report of how the money Jack donated to the cause in December 2022 has been misused so far.
Bounties given
March 2025
- Dhalsim: 1,110,540 - Work on Nostr wiki data processing
February 2025
- BOUNTY* NullKotlinDev: 950,480 - Twine RSS reader Nostr integration
- Dhalsim: 2,094,584 - Work on Hypothes.is Nostr fork
- Constant, Biz and J: 11,700,588 - Nostr Special Forces
January 2025
- Constant, Biz and J: 11,610,987 - Nostr Special Forces
- BOUNTY* NullKotlinDev: 843,840 - Feeder RSS reader Nostr integration
- BOUNTY* NullKotlinDev: 797,500 - ReadYou RSS reader Nostr integration
December 2024
- BOUNTY* tijl: 1,679,500 - Nostr integration into RSS readers yarr and miniflux
- Constant, Biz and J: 10,736,166 - Nostr Special Forces
- Thereza: 1,020,000 - Podcast outreach initiative
November 2024
- Constant, Biz and J: 5,422,464 - Nostr Special Forces
October 2024
- Nostrdam: 300,000 - hackathon prize
- Svetski: 5,000,000 - Latin America Nostr events contribution
- Quentin: 5,000,000 - nostrcheck.me
June 2024
- Darashi: 5,000,000 - maintaining nos.today, searchnos, search.nos.today and other experiments
- Toshiya: 5,000,000 - keeping the NIPs repo clean and other stuff
May 2024
- James: 3,500,000 - https://github.com/jamesmagoo/nostr-writer
- Yakihonne: 5,000,000 - spreading the word in Asia
- Dashu: 9,000,000 - https://github.com/haorendashu/nostrmo
February 2024
- Viktor: 5,000,000 - https://github.com/viktorvsk/saltivka and https://github.com/viktorvsk/knowstr
- Eric T: 5,000,000 - https://github.com/tcheeric/nostr-java
- Semisol: 5,000,000 - https://relay.noswhere.com/ and https://hist.nostr.land relays
- Sebastian: 5,000,000 - Drupal stuff and nostr-php work
- tijl: 5,000,000 - Cloudron, Yunohost and Fraidycat attempts
- Null Kotlin Dev: 5,000,000 - AntennaPod attempt
December 2023
- hzrd: 5,000,000 - Nostrudel
- awayuki: 5,000,000 - NOSTOPUS illustrations
- bera: 5,000,000 - getwired.app
- Chris: 5,000,000 - resolvr.io
- NoGood: 10,000,000 - nostrexplained.com stories
October 2023
- SnowCait: 5,000,000 - https://nostter.vercel.app/ and other tools
- Shaun: 10,000,000 - https://yakihonne.com/, events and work on Nostr awareness
- Derek Ross: 10,000,000 - spreading the word around the world
- fmar: 5,000,000 - https://github.com/frnandu/yana
- The Nostr Report: 2,500,000 - curating stuff
- james magoo: 2,500,000 - the Obsidian plugin: https://github.com/jamesmagoo/nostr-writer
August 2023
- Paul Miller: 5,000,000 - JS libraries and cryptography-related work
- BOUNTY tijl: 5,000,000 - https://github.com/github-tijlxyz/wikinostr
- gzuus: 5,000,000 - https://nostree.me/
July 2023
- syusui-s: 5,000,000 - rabbit, a tweetdeck-like Nostr client: https://syusui-s.github.io/rabbit/
- kojira: 5,000,000 - Nostr fanzine, Nostr discussion groups in Japan, hardware experiments
- darashi: 5,000,000 - https://github.com/darashi/nos.today, https://github.com/darashi/searchnos, https://github.com/darashi/murasaki
- jeff g: 5,000,000 - https://nostr.how and https://listr.lol, plus other contributions
- cloud fodder: 5,000,000 - https://nostr1.com (open-source)
- utxo.one: 5,000,000 - https://relaying.io (open-source)
- Max DeMarco: 10,269,507 - https://www.youtube.com/watch?v=aA-jiiepOrE
- BOUNTY optout21: 1,000,000 - https://github.com/optout21/nip41-proto0 (proposed nip41 CLI)
- BOUNTY Leo: 1,000,000 - https://github.com/leo-lox/camelus (an old relay thing I forgot exactly)
June 2023
- BOUNTY: Sepher: 2,000,000 - a webapp for making lists of anything: https://pinstr.app/
- BOUNTY: Kieran: 10,000,000 - implement gossip algorithm on Snort, implement all the other nice things: manual relay selection, following hints etc.
- Mattn: 5,000,000 - a myriad of projects and contributions to Nostr projects: https://github.com/search?q=owner%3Amattn+nostr&type=code
- BOUNTY: lynn: 2,000,000 - a simple and clean git nostr CLI written in Go, compatible with William's original git-nostr-tools; and implement threaded comments on https://github.com/fiatjaf/nocomment.
- Jack Chakany: 5,000,000 - https://github.com/jacany/nblog
- BOUNTY: Dan: 2,000,000 - https://metadata.nostr.com/
April 2023
- BOUNTY: Blake Jakopovic: 590,000 - event deleter tool, NIP dependency organization
- BOUNTY: koalasat: 1,000,000 - display relays
- BOUNTY: Mike Dilger: 4,000,000 - display relays, follow event hints (Gossip)
- BOUNTY: kaiwolfram: 5,000,000 - display relays, follow event hints, choose relays to publish (Nozzle)
- Daniele Tonon: 3,000,000 - Gossip
- bu5hm4nn: 3,000,000 - Gossip
- BOUNTY: hodlbod: 4,000,000 - display relays, follow event hints
March 2023
- Doug Hoyte: 5,000,000 sats - https://github.com/hoytech/strfry
- Alex Gleason: 5,000,000 sats - https://gitlab.com/soapbox-pub/mostr
- verbiricha: 5,000,000 sats - https://badges.page/, https://habla.news/
- talvasconcelos: 5,000,000 sats - https://migrate.nostr.com, https://read.nostr.com, https://write.nostr.com/
- BOUNTY: Gossip model: 5,000,000 - https://camelus.app/
- BOUNTY: Gossip model: 5,000,000 - https://github.com/kaiwolfram/Nozzle
- BOUNTY: Bounty Manager: 5,000,000 - https://nostrbounties.com/
February 2023
- styppo: 5,000,000 sats - https://hamstr.to/
- sandwich: 5,000,000 sats - https://nostr.watch/
- BOUNTY: Relay-centric client designs: 5,000,000 sats https://bountsr.org/design/2023/01/26/relay-based-design.html
- BOUNTY: Gossip model on https://coracle.social/: 5,000,000 sats
- Nostrovia Podcast: 3,000,000 sats - https://nostrovia.org/
- BOUNTY: Nostr-Desk / Monstr: 5,000,000 sats - https://github.com/alemmens/monstr
- Mike Dilger: 5,000,000 sats - https://github.com/mikedilger/gossip
January 2023
- ismyhc: 5,000,000 sats - https://github.com/Galaxoid-Labs/Seer
- Martti Malmi: 5,000,000 sats - https://iris.to/
- Carlos Autonomous: 5,000,000 sats - https://github.com/BrightonBTC/bija
- Koala Sat: 5,000,000 - https://github.com/KoalaSat/nostros
- Vitor Pamplona: 5,000,000 - https://github.com/vitorpamplona/amethyst
- Cameri: 5,000,000 - https://github.com/Cameri/nostream
December 2022
- William Casarin: 7 BTC - splitting the fund
- pseudozach: 5,000,000 sats - https://nostr.directory/
- Sondre Bjellas: 5,000,000 sats - https://notes.blockcore.net/
- Null Dev: 5,000,000 sats - https://github.com/KotlinGeekDev/Nosky
- Blake Jakopovic: 5,000,000 sats - https://github.com/blakejakopovic/nostcat, https://github.com/blakejakopovic/nostreq and https://github.com/blakejakopovic/NostrEventPlayground
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@ 91bea5cd:1df4451c
2025-04-15 06:27:28Básico
bash lsblk # Lista todos os diretorios montados.
Para criar o sistema de arquivos:
bash mkfs.btrfs -L "ThePool" -f /dev/sdx
Criando um subvolume:
bash btrfs subvolume create SubVol
Montando Sistema de Arquivos:
bash mount -o compress=zlib,subvol=SubVol,autodefrag /dev/sdx /mnt
Lista os discos formatados no diretório:
bash btrfs filesystem show /mnt
Adiciona novo disco ao subvolume:
bash btrfs device add -f /dev/sdy /mnt
Lista novamente os discos do subvolume:
bash btrfs filesystem show /mnt
Exibe uso dos discos do subvolume:
bash btrfs filesystem df /mnt
Balancea os dados entre os discos sobre raid1:
bash btrfs filesystem balance start -dconvert=raid1 -mconvert=raid1 /mnt
Scrub é uma passagem por todos os dados e metadados do sistema de arquivos e verifica as somas de verificação. Se uma cópia válida estiver disponível (perfis de grupo de blocos replicados), a danificada será reparada. Todas as cópias dos perfis replicados são validadas.
iniciar o processo de depuração :
bash btrfs scrub start /mnt
ver o status do processo de depuração Btrfs em execução:
bash btrfs scrub status /mnt
ver o status do scrub Btrfs para cada um dos dispositivos
bash btrfs scrub status -d / data btrfs scrub cancel / data
Para retomar o processo de depuração do Btrfs que você cancelou ou pausou:
btrfs scrub resume / data
Listando os subvolumes:
bash btrfs subvolume list /Reports
Criando um instantâneo dos subvolumes:
Aqui, estamos criando um instantâneo de leitura e gravação chamado snap de marketing do subvolume de marketing.
bash btrfs subvolume snapshot /Reports/marketing /Reports/marketing-snap
Além disso, você pode criar um instantâneo somente leitura usando o sinalizador -r conforme mostrado. O marketing-rosnap é um instantâneo somente leitura do subvolume de marketing
bash btrfs subvolume snapshot -r /Reports/marketing /Reports/marketing-rosnap
Forçar a sincronização do sistema de arquivos usando o utilitário 'sync'
Para forçar a sincronização do sistema de arquivos, invoque a opção de sincronização conforme mostrado. Observe que o sistema de arquivos já deve estar montado para que o processo de sincronização continue com sucesso.
bash btrfs filsystem sync /Reports
Para excluir o dispositivo do sistema de arquivos, use o comando device delete conforme mostrado.
bash btrfs device delete /dev/sdc /Reports
Para sondar o status de um scrub, use o comando scrub status com a opção -dR .
bash btrfs scrub status -dR / Relatórios
Para cancelar a execução do scrub, use o comando scrub cancel .
bash $ sudo btrfs scrub cancel / Reports
Para retomar ou continuar com uma depuração interrompida anteriormente, execute o comando de cancelamento de depuração
bash sudo btrfs scrub resume /Reports
mostra o uso do dispositivo de armazenamento:
btrfs filesystem usage /data
Para distribuir os dados, metadados e dados do sistema em todos os dispositivos de armazenamento do RAID (incluindo o dispositivo de armazenamento recém-adicionado) montados no diretório /data , execute o seguinte comando:
sudo btrfs balance start --full-balance /data
Pode demorar um pouco para espalhar os dados, metadados e dados do sistema em todos os dispositivos de armazenamento do RAID se ele contiver muitos dados.
Opções importantes de montagem Btrfs
Nesta seção, vou explicar algumas das importantes opções de montagem do Btrfs. Então vamos começar.
As opções de montagem Btrfs mais importantes são:
**1. acl e noacl
**ACL gerencia permissões de usuários e grupos para os arquivos/diretórios do sistema de arquivos Btrfs.
A opção de montagem acl Btrfs habilita ACL. Para desabilitar a ACL, você pode usar a opção de montagem noacl .
Por padrão, a ACL está habilitada. Portanto, o sistema de arquivos Btrfs usa a opção de montagem acl por padrão.
**2. autodefrag e noautodefrag
**Desfragmentar um sistema de arquivos Btrfs melhorará o desempenho do sistema de arquivos reduzindo a fragmentação de dados.
A opção de montagem autodefrag permite a desfragmentação automática do sistema de arquivos Btrfs.
A opção de montagem noautodefrag desativa a desfragmentação automática do sistema de arquivos Btrfs.
Por padrão, a desfragmentação automática está desabilitada. Portanto, o sistema de arquivos Btrfs usa a opção de montagem noautodefrag por padrão.
**3. compactar e compactar-forçar
**Controla a compactação de dados no nível do sistema de arquivos do sistema de arquivos Btrfs.
A opção compactar compacta apenas os arquivos que valem a pena compactar (se compactar o arquivo economizar espaço em disco).
A opção compress-force compacta todos os arquivos do sistema de arquivos Btrfs, mesmo que a compactação do arquivo aumente seu tamanho.
O sistema de arquivos Btrfs suporta muitos algoritmos de compactação e cada um dos algoritmos de compactação possui diferentes níveis de compactação.
Os algoritmos de compactação suportados pelo Btrfs são: lzo , zlib (nível 1 a 9) e zstd (nível 1 a 15).
Você pode especificar qual algoritmo de compactação usar para o sistema de arquivos Btrfs com uma das seguintes opções de montagem:
- compress=algoritmo:nível
- compress-force=algoritmo:nível
Para obter mais informações, consulte meu artigo Como habilitar a compactação do sistema de arquivos Btrfs .
**4. subvol e subvolid
**Estas opções de montagem são usadas para montar separadamente um subvolume específico de um sistema de arquivos Btrfs.
A opção de montagem subvol é usada para montar o subvolume de um sistema de arquivos Btrfs usando seu caminho relativo.
A opção de montagem subvolid é usada para montar o subvolume de um sistema de arquivos Btrfs usando o ID do subvolume.
Para obter mais informações, consulte meu artigo Como criar e montar subvolumes Btrfs .
**5. dispositivo
A opção de montagem de dispositivo** é usada no sistema de arquivos Btrfs de vários dispositivos ou RAID Btrfs.
Em alguns casos, o sistema operacional pode falhar ao detectar os dispositivos de armazenamento usados em um sistema de arquivos Btrfs de vários dispositivos ou RAID Btrfs. Nesses casos, você pode usar a opção de montagem do dispositivo para especificar os dispositivos que deseja usar para o sistema de arquivos de vários dispositivos Btrfs ou RAID.
Você pode usar a opção de montagem de dispositivo várias vezes para carregar diferentes dispositivos de armazenamento para o sistema de arquivos de vários dispositivos Btrfs ou RAID.
Você pode usar o nome do dispositivo (ou seja, sdb , sdc ) ou UUID , UUID_SUB ou PARTUUID do dispositivo de armazenamento com a opção de montagem do dispositivo para identificar o dispositivo de armazenamento.
Por exemplo,
- dispositivo=/dev/sdb
- dispositivo=/dev/sdb,dispositivo=/dev/sdc
- dispositivo=UUID_SUB=490a263d-eb9a-4558-931e-998d4d080c5d
- device=UUID_SUB=490a263d-eb9a-4558-931e-998d4d080c5d,device=UUID_SUB=f7ce4875-0874-436a-b47d-3edef66d3424
**6. degraded
A opção de montagem degradada** permite que um RAID Btrfs seja montado com menos dispositivos de armazenamento do que o perfil RAID requer.
Por exemplo, o perfil raid1 requer a presença de 2 dispositivos de armazenamento. Se um dos dispositivos de armazenamento não estiver disponível em qualquer caso, você usa a opção de montagem degradada para montar o RAID mesmo que 1 de 2 dispositivos de armazenamento esteja disponível.
**7. commit
A opção commit** mount é usada para definir o intervalo (em segundos) dentro do qual os dados serão gravados no dispositivo de armazenamento.
O padrão é definido como 30 segundos.
Para definir o intervalo de confirmação para 15 segundos, você pode usar a opção de montagem commit=15 (digamos).
**8. ssd e nossd
A opção de montagem ssd** informa ao sistema de arquivos Btrfs que o sistema de arquivos está usando um dispositivo de armazenamento SSD, e o sistema de arquivos Btrfs faz a otimização SSD necessária.
A opção de montagem nossd desativa a otimização do SSD.
O sistema de arquivos Btrfs detecta automaticamente se um SSD é usado para o sistema de arquivos Btrfs. Se um SSD for usado, a opção de montagem de SSD será habilitada. Caso contrário, a opção de montagem nossd é habilitada.
**9. ssd_spread e nossd_spread
A opção de montagem ssd_spread** tenta alocar grandes blocos contínuos de espaço não utilizado do SSD. Esse recurso melhora o desempenho de SSDs de baixo custo (baratos).
A opção de montagem nossd_spread desativa o recurso ssd_spread .
O sistema de arquivos Btrfs detecta automaticamente se um SSD é usado para o sistema de arquivos Btrfs. Se um SSD for usado, a opção de montagem ssd_spread será habilitada. Caso contrário, a opção de montagem nossd_spread é habilitada.
**10. descarte e nodiscard
Se você estiver usando um SSD que suporte TRIM enfileirado assíncrono (SATA rev3.1), a opção de montagem de descarte** permitirá o descarte de blocos de arquivos liberados. Isso melhorará o desempenho do SSD.
Se o SSD não suportar TRIM enfileirado assíncrono, a opção de montagem de descarte prejudicará o desempenho do SSD. Nesse caso, a opção de montagem nodiscard deve ser usada.
Por padrão, a opção de montagem nodiscard é usada.
**11. norecovery
Se a opção de montagem norecovery** for usada, o sistema de arquivos Btrfs não tentará executar a operação de recuperação de dados no momento da montagem.
**12. usebackuproot e nousebackuproot
Se a opção de montagem usebackuproot for usada, o sistema de arquivos Btrfs tentará recuperar qualquer raiz de árvore ruim/corrompida no momento da montagem. O sistema de arquivos Btrfs pode armazenar várias raízes de árvore no sistema de arquivos. A opção de montagem usebackuproot** procurará uma boa raiz de árvore e usará a primeira boa que encontrar.
A opção de montagem nousebackuproot não verificará ou recuperará raízes de árvore inválidas/corrompidas no momento da montagem. Este é o comportamento padrão do sistema de arquivos Btrfs.
**13. space_cache, space_cache=version, nospace_cache e clear_cache
A opção de montagem space_cache** é usada para controlar o cache de espaço livre. O cache de espaço livre é usado para melhorar o desempenho da leitura do espaço livre do grupo de blocos do sistema de arquivos Btrfs na memória (RAM).
O sistema de arquivos Btrfs suporta 2 versões do cache de espaço livre: v1 (padrão) e v2
O mecanismo de cache de espaço livre v2 melhora o desempenho de sistemas de arquivos grandes (tamanho de vários terabytes).
Você pode usar a opção de montagem space_cache=v1 para definir a v1 do cache de espaço livre e a opção de montagem space_cache=v2 para definir a v2 do cache de espaço livre.
A opção de montagem clear_cache é usada para limpar o cache de espaço livre.
Quando o cache de espaço livre v2 é criado, o cache deve ser limpo para criar um cache de espaço livre v1 .
Portanto, para usar o cache de espaço livre v1 após a criação do cache de espaço livre v2 , as opções de montagem clear_cache e space_cache=v1 devem ser combinadas: clear_cache,space_cache=v1
A opção de montagem nospace_cache é usada para desabilitar o cache de espaço livre.
Para desabilitar o cache de espaço livre após a criação do cache v1 ou v2 , as opções de montagem nospace_cache e clear_cache devem ser combinadas: clear_cache,nosapce_cache
**14. skip_balance
Por padrão, a operação de balanceamento interrompida/pausada de um sistema de arquivos Btrfs de vários dispositivos ou RAID Btrfs será retomada automaticamente assim que o sistema de arquivos Btrfs for montado. Para desabilitar a retomada automática da operação de equilíbrio interrompido/pausado em um sistema de arquivos Btrfs de vários dispositivos ou RAID Btrfs, você pode usar a opção de montagem skip_balance .**
**15. datacow e nodatacow
A opção datacow** mount habilita o recurso Copy-on-Write (CoW) do sistema de arquivos Btrfs. É o comportamento padrão.
Se você deseja desabilitar o recurso Copy-on-Write (CoW) do sistema de arquivos Btrfs para os arquivos recém-criados, monte o sistema de arquivos Btrfs com a opção de montagem nodatacow .
**16. datasum e nodatasum
A opção datasum** mount habilita a soma de verificação de dados para arquivos recém-criados do sistema de arquivos Btrfs. Este é o comportamento padrão.
Se você não quiser que o sistema de arquivos Btrfs faça a soma de verificação dos dados dos arquivos recém-criados, monte o sistema de arquivos Btrfs com a opção de montagem nodatasum .
Perfis Btrfs
Um perfil Btrfs é usado para informar ao sistema de arquivos Btrfs quantas cópias dos dados/metadados devem ser mantidas e quais níveis de RAID devem ser usados para os dados/metadados. O sistema de arquivos Btrfs contém muitos perfis. Entendê-los o ajudará a configurar um RAID Btrfs da maneira que você deseja.
Os perfis Btrfs disponíveis são os seguintes:
single : Se o perfil único for usado para os dados/metadados, apenas uma cópia dos dados/metadados será armazenada no sistema de arquivos, mesmo se você adicionar vários dispositivos de armazenamento ao sistema de arquivos. Assim, 100% do espaço em disco de cada um dos dispositivos de armazenamento adicionados ao sistema de arquivos pode ser utilizado.
dup : Se o perfil dup for usado para os dados/metadados, cada um dos dispositivos de armazenamento adicionados ao sistema de arquivos manterá duas cópias dos dados/metadados. Assim, 50% do espaço em disco de cada um dos dispositivos de armazenamento adicionados ao sistema de arquivos pode ser utilizado.
raid0 : No perfil raid0 , os dados/metadados serão divididos igualmente em todos os dispositivos de armazenamento adicionados ao sistema de arquivos. Nesta configuração, não haverá dados/metadados redundantes (duplicados). Assim, 100% do espaço em disco de cada um dos dispositivos de armazenamento adicionados ao sistema de arquivos pode ser usado. Se, em qualquer caso, um dos dispositivos de armazenamento falhar, todo o sistema de arquivos será corrompido. Você precisará de pelo menos dois dispositivos de armazenamento para configurar o sistema de arquivos Btrfs no perfil raid0 .
raid1 : No perfil raid1 , duas cópias dos dados/metadados serão armazenadas nos dispositivos de armazenamento adicionados ao sistema de arquivos. Nesta configuração, a matriz RAID pode sobreviver a uma falha de unidade. Mas você pode usar apenas 50% do espaço total em disco. Você precisará de pelo menos dois dispositivos de armazenamento para configurar o sistema de arquivos Btrfs no perfil raid1 .
raid1c3 : No perfil raid1c3 , três cópias dos dados/metadados serão armazenadas nos dispositivos de armazenamento adicionados ao sistema de arquivos. Nesta configuração, a matriz RAID pode sobreviver a duas falhas de unidade, mas você pode usar apenas 33% do espaço total em disco. Você precisará de pelo menos três dispositivos de armazenamento para configurar o sistema de arquivos Btrfs no perfil raid1c3 .
raid1c4 : No perfil raid1c4 , quatro cópias dos dados/metadados serão armazenadas nos dispositivos de armazenamento adicionados ao sistema de arquivos. Nesta configuração, a matriz RAID pode sobreviver a três falhas de unidade, mas você pode usar apenas 25% do espaço total em disco. Você precisará de pelo menos quatro dispositivos de armazenamento para configurar o sistema de arquivos Btrfs no perfil raid1c4 .
raid10 : No perfil raid10 , duas cópias dos dados/metadados serão armazenadas nos dispositivos de armazenamento adicionados ao sistema de arquivos, como no perfil raid1 . Além disso, os dados/metadados serão divididos entre os dispositivos de armazenamento, como no perfil raid0 .
O perfil raid10 é um híbrido dos perfis raid1 e raid0 . Alguns dos dispositivos de armazenamento formam arrays raid1 e alguns desses arrays raid1 são usados para formar um array raid0 . Em uma configuração raid10 , o sistema de arquivos pode sobreviver a uma única falha de unidade em cada uma das matrizes raid1 .
Você pode usar 50% do espaço total em disco na configuração raid10 . Você precisará de pelo menos quatro dispositivos de armazenamento para configurar o sistema de arquivos Btrfs no perfil raid10 .
raid5 : No perfil raid5 , uma cópia dos dados/metadados será dividida entre os dispositivos de armazenamento. Uma única paridade será calculada e distribuída entre os dispositivos de armazenamento do array RAID.
Em uma configuração raid5 , o sistema de arquivos pode sobreviver a uma única falha de unidade. Se uma unidade falhar, você pode adicionar uma nova unidade ao sistema de arquivos e os dados perdidos serão calculados a partir da paridade distribuída das unidades em execução.
Você pode usar 1 00x(N-1)/N % do total de espaços em disco na configuração raid5 . Aqui, N é o número de dispositivos de armazenamento adicionados ao sistema de arquivos. Você precisará de pelo menos três dispositivos de armazenamento para configurar o sistema de arquivos Btrfs no perfil raid5 .
raid6 : No perfil raid6 , uma cópia dos dados/metadados será dividida entre os dispositivos de armazenamento. Duas paridades serão calculadas e distribuídas entre os dispositivos de armazenamento do array RAID.
Em uma configuração raid6 , o sistema de arquivos pode sobreviver a duas falhas de unidade ao mesmo tempo. Se uma unidade falhar, você poderá adicionar uma nova unidade ao sistema de arquivos e os dados perdidos serão calculados a partir das duas paridades distribuídas das unidades em execução.
Você pode usar 100x(N-2)/N % do espaço total em disco na configuração raid6 . Aqui, N é o número de dispositivos de armazenamento adicionados ao sistema de arquivos. Você precisará de pelo menos quatro dispositivos de armazenamento para configurar o sistema de arquivos Btrfs no perfil raid6 .
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@ 91bea5cd:1df4451c
2025-04-26 10:16:21O Contexto Legal Brasileiro e o Consentimento
No ordenamento jurídico brasileiro, o consentimento do ofendido pode, em certas circunstâncias, afastar a ilicitude de um ato que, sem ele, configuraria crime (como lesão corporal leve, prevista no Art. 129 do Código Penal). Contudo, o consentimento tem limites claros: não é válido para bens jurídicos indisponíveis, como a vida, e sua eficácia é questionável em casos de lesões corporais graves ou gravíssimas.
A prática de BDSM consensual situa-se em uma zona complexa. Em tese, se ambos os parceiros são adultos, capazes, e consentiram livre e informadamente nos atos praticados, sem que resultem em lesões graves permanentes ou risco de morte não consentido, não haveria crime. O desafio reside na comprovação desse consentimento, especialmente se uma das partes, posteriormente, o negar ou alegar coação.
A Lei Maria da Penha (Lei nº 11.340/2006)
A Lei Maria da Penha é um marco fundamental na proteção da mulher contra a violência doméstica e familiar. Ela estabelece mecanismos para coibir e prevenir tal violência, definindo suas formas (física, psicológica, sexual, patrimonial e moral) e prevendo medidas protetivas de urgência.
Embora essencial, a aplicação da lei em contextos de BDSM pode ser delicada. Uma alegação de violência por parte da mulher, mesmo que as lesões ou situações decorram de práticas consensuais, tende a receber atenção prioritária das autoridades, dada a presunção de vulnerabilidade estabelecida pela lei. Isso pode criar um cenário onde o parceiro masculino enfrenta dificuldades significativas em demonstrar a natureza consensual dos atos, especialmente se não houver provas robustas pré-constituídas.
Outros riscos:
Lesão corporal grave ou gravíssima (art. 129, §§ 1º e 2º, CP), não pode ser justificada pelo consentimento, podendo ensejar persecução penal.
Crimes contra a dignidade sexual (arts. 213 e seguintes do CP) são de ação pública incondicionada e independem de representação da vítima para a investigação e denúncia.
Riscos de Falsas Acusações e Alegação de Coação Futura
Os riscos para os praticantes de BDSM, especialmente para o parceiro que assume o papel dominante ou que inflige dor/restrição (frequentemente, mas não exclusivamente, o homem), podem surgir de diversas frentes:
- Acusações Externas: Vizinhos, familiares ou amigos que desconhecem a natureza consensual do relacionamento podem interpretar sons, marcas ou comportamentos como sinais de abuso e denunciar às autoridades.
- Alegações Futuras da Parceira: Em caso de término conturbado, vingança, arrependimento ou mudança de perspectiva, a parceira pode reinterpretar as práticas passadas como abuso e buscar reparação ou retaliação através de uma denúncia. A alegação pode ser de que o consentimento nunca existiu ou foi viciado.
- Alegação de Coação: Uma das formas mais complexas de refutar é a alegação de que o consentimento foi obtido mediante coação (física, moral, psicológica ou econômica). A parceira pode alegar, por exemplo, que se sentia pressionada, intimidada ou dependente, e que seu "sim" não era genuíno. Provar a ausência de coação a posteriori é extremamente difícil.
- Ingenuidade e Vulnerabilidade Masculina: Muitos homens, confiando na dinâmica consensual e na parceira, podem negligenciar a necessidade de precauções. A crença de que "isso nunca aconteceria comigo" ou a falta de conhecimento sobre as implicações legais e o peso processual de uma acusação no âmbito da Lei Maria da Penha podem deixá-los vulneráveis. A presença de marcas físicas, mesmo que consentidas, pode ser usada como evidência de agressão, invertendo o ônus da prova na prática, ainda que não na teoria jurídica.
Estratégias de Prevenção e Mitigação
Não existe um método infalível para evitar completamente o risco de uma falsa acusação, mas diversas medidas podem ser adotadas para construir um histórico de consentimento e reduzir vulnerabilidades:
- Comunicação Explícita e Contínua: A base de qualquer prática BDSM segura é a comunicação constante. Negociar limites, desejos, palavras de segurança ("safewords") e expectativas antes, durante e depois das cenas é crucial. Manter registros dessas negociações (e-mails, mensagens, diários compartilhados) pode ser útil.
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Documentação do Consentimento:
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Contratos de Relacionamento/Cena: Embora a validade jurídica de "contratos BDSM" seja discutível no Brasil (não podem afastar normas de ordem pública), eles servem como forte evidência da intenção das partes, da negociação detalhada de limites e do consentimento informado. Devem ser claros, datados, assinados e, idealmente, reconhecidos em cartório (para prova de data e autenticidade das assinaturas).
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Registros Audiovisuais: Gravar (com consentimento explícito para a gravação) discussões sobre consentimento e limites antes das cenas pode ser uma prova poderosa. Gravar as próprias cenas é mais complexo devido a questões de privacidade e potencial uso indevido, mas pode ser considerado em casos específicos, sempre com consentimento mútuo documentado para a gravação.
Importante: a gravação deve ser com ciência da outra parte, para não configurar violação da intimidade (art. 5º, X, da Constituição Federal e art. 20 do Código Civil).
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Testemunhas: Em alguns contextos de comunidade BDSM, a presença de terceiros de confiança durante negociações ou mesmo cenas pode servir como testemunho, embora isso possa alterar a dinâmica íntima do casal.
- Estabelecimento Claro de Limites e Palavras de Segurança: Definir e respeitar rigorosamente os limites (o que é permitido, o que é proibido) e as palavras de segurança é fundamental. O desrespeito a uma palavra de segurança encerra o consentimento para aquele ato.
- Avaliação Contínua do Consentimento: O consentimento não é um cheque em branco; ele deve ser entusiástico, contínuo e revogável a qualquer momento. Verificar o bem-estar do parceiro durante a cena ("check-ins") é essencial.
- Discrição e Cuidado com Evidências Físicas: Ser discreto sobre a natureza do relacionamento pode evitar mal-entendidos externos. Após cenas que deixem marcas, é prudente que ambos os parceiros estejam cientes e de acordo, talvez documentando por fotos (com data) e uma nota sobre a consensualidade da prática que as gerou.
- Aconselhamento Jurídico Preventivo: Consultar um advogado especializado em direito de família e criminal, com sensibilidade para dinâmicas de relacionamento alternativas, pode fornecer orientação personalizada sobre as melhores formas de documentar o consentimento e entender os riscos legais específicos.
Observações Importantes
- Nenhuma documentação substitui a necessidade de consentimento real, livre, informado e contínuo.
- A lei brasileira protege a "integridade física" e a "dignidade humana". Práticas que resultem em lesões graves ou que violem a dignidade de forma não consentida (ou com consentimento viciado) serão ilegais, independentemente de qualquer acordo prévio.
- Em caso de acusação, a existência de documentação robusta de consentimento não garante a absolvição, mas fortalece significativamente a defesa, ajudando a demonstrar a natureza consensual da relação e das práticas.
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A alegação de coação futura é particularmente difícil de prevenir apenas com documentos. Um histórico consistente de comunicação aberta (whatsapp/telegram/e-mails), respeito mútuo e ausência de dependência ou controle excessivo na relação pode ajudar a contextualizar a dinâmica como não coercitiva.
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Cuidado com Marcas Visíveis e Lesões Graves Práticas que resultam em hematomas severos ou lesões podem ser interpretadas como agressão, mesmo que consentidas. Evitar excessos protege não apenas a integridade física, mas também evita questionamentos legais futuros.
O que vem a ser consentimento viciado
No Direito, consentimento viciado é quando a pessoa concorda com algo, mas a vontade dela não é livre ou plena — ou seja, o consentimento existe formalmente, mas é defeituoso por alguma razão.
O Código Civil brasileiro (art. 138 a 165) define várias formas de vício de consentimento. As principais são:
Erro: A pessoa se engana sobre o que está consentindo. (Ex.: A pessoa acredita que vai participar de um jogo leve, mas na verdade é exposta a práticas pesadas.)
Dolo: A pessoa é enganada propositalmente para aceitar algo. (Ex.: Alguém mente sobre o que vai acontecer durante a prática.)
Coação: A pessoa é forçada ou ameaçada a consentir. (Ex.: "Se você não aceitar, eu termino com você" — pressão emocional forte pode ser vista como coação.)
Estado de perigo ou lesão: A pessoa aceita algo em situação de necessidade extrema ou abuso de sua vulnerabilidade. (Ex.: Alguém em situação emocional muito fragilizada é induzida a aceitar práticas que normalmente recusaria.)
No contexto de BDSM, isso é ainda mais delicado: Mesmo que a pessoa tenha "assinado" um contrato ou dito "sim", se depois ela alegar que seu consentimento foi dado sob medo, engano ou pressão psicológica, o consentimento pode ser considerado viciado — e, portanto, juridicamente inválido.
Isso tem duas implicações sérias:
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O crime não se descaracteriza: Se houver vício, o consentimento é ignorado e a prática pode ser tratada como crime normal (lesão corporal, estupro, tortura, etc.).
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A prova do consentimento precisa ser sólida: Mostrando que a pessoa estava informada, lúcida, livre e sem qualquer tipo de coação.
Consentimento viciado é quando a pessoa concorda formalmente, mas de maneira enganada, forçada ou pressionada, tornando o consentimento inútil para efeitos jurídicos.
Conclusão
Casais que praticam BDSM consensual no Brasil navegam em um terreno que exige não apenas confiança mútua e comunicação excepcional, mas também uma consciência aguçada das complexidades legais e dos riscos de interpretações equivocadas ou acusações mal-intencionadas. Embora o BDSM seja uma expressão legítima da sexualidade humana, sua prática no Brasil exige responsabilidade redobrada. Ter provas claras de consentimento, manter a comunicação aberta e agir com prudência são formas eficazes de se proteger de falsas alegações e preservar a liberdade e a segurança de todos os envolvidos. Embora leis controversas como a Maria da Penha sejam "vitais" para a proteção contra a violência real, os praticantes de BDSM, e em particular os homens nesse contexto, devem adotar uma postura proativa e prudente para mitigar os riscos inerentes à potencial má interpretação ou instrumentalização dessas práticas e leis, garantindo que a expressão de sua consensualidade esteja resguardada na medida do possível.
Importante: No Brasil, mesmo com tudo isso, o Ministério Público pode denunciar por crime como lesão corporal grave, estupro ou tortura, independente de consentimento. Então a prudência nas práticas é fundamental.
Aviso Legal: Este artigo tem caráter meramente informativo e não constitui aconselhamento jurídico. As leis e interpretações podem mudar, e cada situação é única. Recomenda-se buscar orientação de um advogado qualificado para discutir casos específicos.
Se curtiu este artigo faça uma contribuição, se tiver algum ponto relevante para o artigo deixe seu comentário.
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@ 06b7819d:d1d8327c
2024-12-08 10:52:55Power as the Reduction of Possibilities: Niklas Luhmann’s Perspective
Niklas Luhmann, a leading figure in systems theory, offers a unique conceptualization of power that diverges from traditional notions of domination or coercion. Rather than viewing power as a forceful imposition of will, Luhmann frames it as a mechanism for reducing possibilities within a given social system. For Luhmann, power is less about direct coercion and more about structuring decision-making processes by limiting the range of available options.
In his systems-theoretical approach, Luhmann argues that power operates as a communication medium, enabling complex social systems to function by simplifying the overwhelming array of potential actions. In any decision-making context, there are countless possibilities, and not all can be pursued. Power serves as a tool to focus attention, filter alternatives, and channel behavior toward specific actions while excluding others. This reduction of options creates a manageable environment for coordinated action, which is essential for the stability of a system.
Importantly, this process does not inherently involve force or threats. Instead, power works through expectations, norms, and structures that guide behavior. For example, in an organizational setting, the hierarchy of authority determines which decisions are permissible, thereby shaping the actions of individuals without overt coercion. The employees’ actions are not forced; rather, they are conditioned by the organizational framework, which narrows their choices.
Luhmann’s idea redefines power as a productive force in social systems. By limiting possibilities, power reduces uncertainty, making collaboration and collective action possible. It ensures that systems can function efficiently despite their inherent complexity. This perspective shifts the emphasis from conflict to coordination, offering a more nuanced understanding of how power operates in modern societies.
In sum, Niklas Luhmann’s theory of power as the reduction of possibilities highlights its integrative role in enabling social systems to navigate complexity. It challenges conventional views of power as coercion, emphasizing its capacity to organize and stabilize interactions through the selective limitation of actions.
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@ 57d1a264:69f1fee1
2025-05-20 06:02:26Digital Psychology ↗
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@ 91bea5cd:1df4451c
2025-05-16 11:07:16Instruções:
- Leia cada pergunta cuidadosamente.
- Escolha a opção (A, B, C ou D) que melhor descreve você na maioria das situações. Seja o mais honesto possível.
- Anote a letra correspondente à sua escolha para cada pergunta.
- No final, some quantas vezes você escolheu cada letra (A, B, C, D).
- Veja a seção de resultados para interpretar sua pontuação.
Teste de Temperamento
1. Em um evento social (festa, reunião), como você geralmente se comporta? A) Sou o centro das atenções, converso com todos, faço piadas e animo o ambiente. B) Tomo a iniciativa, organizo atividades ou discussões, e gosto de liderar conversas. C) Prefiro observar, conversar em grupos menores ou com pessoas que já conheço bem, e analiso o ambiente. D) Sou tranquilo, ouvinte, evito chamar atenção e me adapto ao ritmo do grupo.
2. Ao enfrentar um novo projeto ou tarefa desafiadora no trabalho ou estudo: A) Fico entusiasmado com a novidade, tenho muitas ideias iniciais, mas posso me distrair facilmente. B) Defino metas claras, crio um plano de ação rápido e foco em alcançar resultados eficientemente. C) Analiso todos os detalhes, planejo meticulosamente, prevejo possíveis problemas e busco a perfeição. D) Abordo com calma, trabalho de forma constante e organizada, e prefiro um ambiente sem pressão.
3. Como você geralmente reage a críticas? A) Tento levar na esportiva, talvez faça uma piada, mas posso me magoar momentaneamente e logo esqueço. B) Defendo meu ponto de vista vigorosamente, posso ficar irritado se sentir injustiça, mas foco em corrigir o problema. C) Levo muito a sério, analiso profundamente, posso me sentir magoado por um tempo e repenso minhas ações. D) Escuto com calma, considero a crítica objetivamente e tento não levar para o lado pessoal, buscando a paz.
4. Qual seu estilo de tomada de decisão? A) Sou impulsivo, decido rapidamente com base no entusiasmo do momento, às vezes me arrependo depois. B) Sou decidido e rápido, foco no objetivo final, às vezes sem considerar todos os detalhes ou sentimentos alheios. C) Sou ponderado, analiso todas as opções e consequências, demoro para decidir buscando a melhor escolha. D) Sou cauteloso, prefiro evitar decisões difíceis, busco consenso ou adio se possível.
5. Como você lida com rotina e repetição? A) Acho entediante rapidamente, preciso de variedade e novidade constante para me manter engajado. B) Tolero se for necessário para atingir um objetivo, mas prefiro desafios e mudanças que eu controlo. C) Aprecio a ordem e a previsibilidade, me sinto confortável com rotinas bem estabelecidas. D) Adapto-me bem à rotina, acho confortável e seguro, não gosto de mudanças bruscas.
6. Em uma discussão ou conflito: A) Tento aliviar a tensão com humor, expresso meus sentimentos abertamente, mas não guardo rancor. B) Sou direto e assertivo, defendo minha posição com firmeza, posso parecer confrontador. C) Evito confronto direto, mas fico remoendo o problema, analiso os argumentos e posso guardar ressentimento. D) Busco a conciliação, tento entender todos os lados, sou diplomático e evito o conflito a todo custo.
7. Como você expressa seus sentimentos (alegria, tristeza, raiva)? A) Expresso de forma aberta, intensa e visível, minhas emoções mudam rapidamente. B) Expresso de forma direta e forte, principalmente a raiva ou a determinação, controlo emoções "fracas". C) Tendo a internalizar, minhas emoções são profundas e duradouras, posso parecer reservado. D) Sou contido na expressão emocional, mantenho a calma externamente, mesmo que sinta algo internamente.
8. Qual seu nível de energia habitual? A) Alto, sou muito ativo, falante e entusiasmado, gosto de estar em movimento. B) Muito alto e direcionado, tenho muita energia para perseguir meus objetivos e liderar. C) Variável, posso ter picos de energia para projetos que me interessam, mas também preciso de tempo quieto para recarregar. D) Moderado e constante, sou calmo, tranquilo, prefiro atividades menos agitadas.
9. Como você organiza seu espaço de trabalho ou sua casa? A) Pode ser um pouco caótico e desorganizado, com muitas coisas interessantes espalhadas. B) Organizado de forma funcional para máxima eficiência, focado no essencial para as tarefas. C) Extremamente organizado, metódico, cada coisa em seu lugar, prezo pela ordem e estética. D) Confortável e prático, não necessariamente impecável, mas funcional e sem excessos.
10. O que mais te motiva? A) Reconhecimento social, diversão, novas experiências e interações. B) Poder, controle, desafios, alcançar metas ambiciosas e resultados concretos. C) Qualidade, significado, fazer as coisas da maneira certa, compreensão profunda. D) Paz, estabilidade, harmonia nos relacionamentos, evitar estresse e pressão.
11. Como você reage a imprevistos ou mudanças de plano? A) Adapto-me rapidamente, às vezes até gosto da novidade, embora possa atrapalhar meus planos iniciais. B) Fico irritado com a perda de controle, mas rapidamente busco uma solução alternativa para manter o objetivo. C) Sinto-me desconfortável e ansioso, preciso de tempo para reavaliar e replanejar cuidadosamente. D) Aceito com calma, sou flexível e me ajusto sem muito alarde, desde que não gere conflito.
12. Qual o seu maior medo (em termos gerais)? A) Ser rejeitado, ignorado ou ficar entediado. B) Perder o controle, parecer fraco ou incompetente. C) Cometer erros graves, ser inadequado ou imperfeito. D) Conflitos, pressão, tomar decisões erradas que afetem a estabilidade.
13. Como você costuma passar seu tempo livre? A) Socializando, saindo com amigos, buscando atividades novas e divertidas. B) Engajado em atividades produtivas, esportes competitivos, planejando próximos passos. C) Lendo, estudando, refletindo, dedicando-me a hobbies que exigem atenção e cuidado. D) Relaxando em casa, assistindo filmes, lendo tranquilamente, passando tempo com a família de forma calma.
14. Ao trabalhar em equipe: A) Sou o animador, trago ideias, conecto as pessoas, mas posso ter dificuldade em focar nos detalhes. B) Assumo a liderança naturalmente, delego tarefas, foco nos resultados e mantenho todos na linha. C) Sou o planejador e o crítico construtivo, atento aos detalhes, garanto a qualidade, mas posso ser muito exigente. D) Sou o pacificador e o colaborador, ajudo a manter a harmonia, realizo minhas tarefas de forma confiável.
15. Como você lida com prazos? A) Muitas vezes deixo para a última hora, trabalho melhor sob a pressão do prazo final, mas posso me atrapalhar. B) Gosto de terminar bem antes do prazo, vejo o prazo como um desafio a ser superado rapidamente. C) Planejo o tempo cuidadosamente para cumprir o prazo com qualidade, fico ansioso se o tempo fica curto. D) Trabalho em ritmo constante para cumprir o prazo sem estresse, não gosto de correria.
16. Qual destas frases mais te descreve? A) "A vida é uma festa!" B) "Se quer algo bem feito, faça você mesmo (ou mande fazer do seu jeito)." C) "Tudo tem um propósito e um lugar certo." D) "Devagar se vai ao longe."
17. Em relação a regras e procedimentos: A) Gosto de flexibilidade, às vezes acho as regras limitantes e tento contorná-las. B) Uso as regras a meu favor para atingir objetivos, mas não hesito em quebrá-las se necessário e se eu puder controlar as consequências. C) Sigo as regras rigorosamente, acredito que elas garantem ordem e qualidade. D) Respeito as regras para evitar problemas, prefiro seguir o fluxo estabelecido.
18. Como você reage quando alguém está emocionalmente abalado? A) Tento animar a pessoa, conto piadas, ofereço distração e companhia. B) Ofereço soluções práticas para o problema, foco em resolver a situação que causou o abalo. C) Escuto com empatia, ofereço apoio profundo e tento compreender a dor da pessoa. D) Mantenho a calma, ofereço um ouvido atento e um ombro amigo, sem me deixar abalar muito.
19. Que tipo de filme ou livro você prefere? A) Comédias, aventuras, romances leves, algo que me divirta e me mantenha entretido. B) Ação, suspense, biografias de líderes, estratégias, algo que me desafie ou inspire poder. C) Dramas profundos, documentários, mistérios complexos, ficção científica filosófica, algo que me faça pensar e sentir. D) Histórias tranquilas, dramas familiares, romances amenos, natureza, algo que me relaxe e traga conforto.
20. O que é mais importante para você em um relacionamento (amizade, amoroso)? A) Diversão, cumplicidade, comunicação aberta e espontaneidade. B) Lealdade, objetivos em comum, apoio mútuo nas ambições. C) Compreensão profunda, fidelidade, apoio emocional e intelectual. D) Harmonia, estabilidade, aceitação mútua e tranquilidade.
21. Se você ganhasse na loteria, qual seria sua primeira reação/ação? A) Faria uma grande festa, viajaria pelo mundo, compraria presentes para todos! B) Investiria estrategicamente, planejaria como multiplicar o dinheiro, garantiria o controle financeiro. C) Pesquisaria as melhores opções de investimento, faria um plano detalhado de longo prazo, doaria para causas significativas. D) Guardaria a maior parte em segurança, faria algumas melhorias práticas na vida, evitaria mudanças drásticas.
22. Como você se sente em relação a riscos? A) Gosto de arriscar se a recompensa parecer divertida ou excitante, sou otimista. B) Calculo os riscos e assumo-os se acreditar que a recompensa vale a pena e que posso controlar a situação. C) Evito riscos desnecessários, prefiro a segurança e a previsibilidade, analiso tudo antes de agir. D) Desgosto de riscos, prefiro caminhos seguros e comprovados, a estabilidade é mais importante.
23. Sua memória tende a focar mais em: A) Momentos divertidos, pessoas interessantes, experiências marcantes (embora possa esquecer detalhes). B) Sucessos, fracassos (para aprender), injustiças cometidas contra você, quem te ajudou ou atrapalhou. C) Detalhes precisos, conversas significativas, erros cometidos (por você ou outros), sentimentos profundos. D) Fatos objetivos, rotinas, informações práticas, geralmente de forma neutra.
24. Quando aprende algo novo, você prefere: A) Experimentar na prática imediatamente, aprender fazendo, mesmo que cometa erros. B) Entender o objetivo e a aplicação prática rapidamente, focar no essencial para usar o conhecimento. C) Estudar a fundo a teoria, entender todos os porquês, buscar fontes confiáveis e dominar o assunto. D) Aprender em um ritmo calmo, com instruções claras e passo a passo, sem pressão.
25. Se descreva em uma palavra (escolha a que mais se aproxima): A) Entusiasmado(a) B) Determinado(a) C) Criterioso(a) D) Pacífico(a)
26. Como você lida com o silêncio em uma conversa? A) Sinto-me desconfortável e tento preenchê-lo rapidamente com qualquer assunto. B) Uso o silêncio estrategicamente ou o interrompo para direcionar a conversa. C) Posso apreciar o silêncio para refletir, ou me sentir um pouco ansioso dependendo do contexto. D) Sinto-me confortável com o silêncio, não sinto necessidade de preenchê-lo.
27. O que te deixa mais frustrado(a)? A) Tédio, falta de reconhecimento, ser ignorado. B) Incompetência alheia, falta de controle, obstáculos aos seus planos. C) Desorganização, falta de qualidade, injustiça, superficialidade. D) Conflitos interpessoais, pressão excessiva, desordem emocional.
28. Qual a sua relação com o passado, presente e futuro? A) Foco no presente e nas oportunidades imediatas, otimista em relação ao futuro, esqueço o passado facilmente. B) Foco no futuro (metas) e no presente (ações para alcançá-las), aprendo com o passado mas não me prendo a ele. C) Reflito muito sobre o passado (aprendizados, erros), analiso o presente e planejo o futuro com cautela, às vezes com preocupação. D) Vivo o presente de forma tranquila, valorizo a estabilidade e a continuidade do passado, vejo o futuro com serenidade.
29. Se você tivesse que organizar um evento, qual seria seu papel principal? A) Relações públicas, divulgação, animação, garantir que todos se divirtam. B) Coordenação geral, definição de metas, delegação de tarefas, garantir que tudo aconteça conforme o planejado (por você). C) Planejamento detalhado, logística, controle de qualidade, garantir que nada dê errado. D) Suporte, resolução de problemas de forma calma, garantir um ambiente harmonioso.
30. Qual ambiente de trabalho te agrada mais? A) Dinâmico, social, com muita interação, flexibilidade e novidades. B) Competitivo, desafiador, focado em resultados, onde eu possa liderar ou ter autonomia. C) Estruturado, quieto, onde eu possa me concentrar, com padrões claros de qualidade e tempo para análise. D) Estável, cooperativo, sem pressão, com relacionamentos harmoniosos e tarefas previsíveis.
Calculando seus Resultados:
Agora, conte quantas vezes você escolheu cada letra:
- Total de A: ______
- Total de B: ______
- Total de C: ______
- Total de D: ______
A letra (ou as letras) com a maior pontuação indica(m) seu(s) temperamento(s) dominante(s).
Interpretação dos Resultados:
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Se sua maior pontuação foi A: Temperamento SANGUÍNEO Dominante
- Características: Você é extrovertido, otimista, sociável, comunicativo, entusiasmado e adora novidades. Gosta de ser o centro das atenções, faz amigos facilmente e contagia os outros com sua energia. É criativo e espontâneo.
- Pontos Fortes: Carismático, inspirador, adaptável, bom em iniciar relacionamentos e projetos, perdoa facilmente.
- Desafios Potenciais: Pode ser indisciplinado, desorganizado, impulsivo, superficial, ter dificuldade em focar e terminar tarefas, e ser muito dependente de aprovação externa.
-
Se sua maior pontuação foi B: Temperamento COLÉRICO Dominante
- Características: Você é enérgico, decidido, líder nato, orientado para metas e resultados. É ambicioso, assertivo, direto e não tem medo de desafios ou confrontos. Gosta de estar no controle e é muito prático.
- Pontos Fortes: Determinado, eficiente, líder natural, bom em tomar decisões e resolver problemas, autoconfiante.
- Desafios Potenciais: Pode ser impaciente, dominador, teimoso, insensível aos sentimentos alheios, propenso à raiva e a "atropelar" os outros para atingir seus objetivos.
-
Se sua maior pontuação foi C: Temperamento MELANCÓLICO Dominante
- Características: Você é introvertido, analítico, sensível, perfeccionista e profundo. É leal, dedicado, aprecia a beleza e a ordem. Tende a ser pensativo, criterioso e busca significado em tudo. Leva as coisas a sério.
- Pontos Fortes: Detalhista, organizado, criativo (em profundidade), leal, empático, comprometido com a qualidade e a justiça.
- Desafios Potenciais: Pode ser pessimista, excessivamente crítico (consigo e com os outros), indeciso (pela análise excessiva), guardar ressentimentos, ser propenso à tristeza e ao isolamento.
-
Se sua maior pontuação foi D: Temperamento FLEUMÁTICO Dominante
- Características: Você é calmo, tranquilo, equilibrado e diplomático. É observador, paciente, confiável e fácil de conviver. Evita conflitos, busca harmonia e estabilidade. É um bom ouvinte e trabalha bem sob rotina.
- Pontos Fortes: Pacífico, estável, confiável, bom ouvinte, diplomático, eficiente em tarefas rotineiras, mantém a calma sob pressão.
- Desafios Potenciais: Pode ser indeciso, procrastinador, resistente a mudanças, parecer apático ou sem entusiasmo, ter dificuldade em se impor e expressar suas próprias necessidades.
Combinações de Temperamentos:
É muito comum ter pontuações altas em duas letras. Isso indica uma combinação de temperamentos. Por exemplo:
- Sanguíneo-Colérico: Extrovertido, enérgico, líder carismático, mas pode ser impulsivo e dominador.
- Sanguíneo-Fleumático: Sociável e agradável, mas pode ter dificuldade com disciplina e iniciativa.
- Colérico-Melancólico: Líder focado e detalhista, muito capaz, mas pode ser excessivamente crítico e exigente.
- Melancólico-Fleumático: Quieto, confiável, analítico, mas pode ser indeciso e resistente a riscos.
Importante: Este teste é uma ferramenta de autoconhecimento. Ninguém se encaixa perfeitamente em uma única caixa. Use os resultados para entender melhor suas tendências naturais, seus pontos fortes e as áreas onde você pode buscar equilíbrio e desenvolvimento.
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@ 554ab6fe:c6cbc27e
2025-05-20 15:51:33Introduction
It is becoming increasingly evident that sunlight is an essential nutrient for the body. To be more precise, the various wavelengths coming from the sun provide different benefits to the body, and each play a vital role in human health. Even more so, they work in concert with one another, as one wavelength may help reduce the potentially harmful effects of another. Benefits are maximized and harm reduced when we are exposed to the full breadth of this rainbow. This article will attempt to shed light on these various benefits and synergies.
To put this discussion into context, it is important to consider the overall health benefits of sunlight exposure. In a Swedish study that followed 29,000 women over 20 years, it was found that the mortality rate was doubled in those who avoided sun exposure when compared to those that didn’t (Lindqvist et al. 2016). Women who avoided the sun were twice as likely to die, primarily from cardiovascular disease, and there was no difference between death from malignant melanoma between the two groups (Lindqvist et al. 2016).
To understand why sunlight is so beneficial to health, it is important to make clear the diverse range of wavelengths that come from the sun. We typically think of the sun as a provider of both visible light and warmth. However, the spectrum of light visible to the human eye is a narrow band of the wavelengths actually emitted by the sun.
As wavelengths become shorter, visible light becomes more blue. Beyond the visible spectrum on the blue end, we arrive at ultraviolet (UV) light. On the other end of the spectrum are the longer red wavelengths. Outside of the visible window on the red side is infrared (IR) light, which provides heat. For helpful context, consider how shorter wavelengths have a harder time penetrating our atmosphere. So, the skies of dawn and dusk are predominately filled with red and near-infrared (NIR) light, while the middle of the day contains more blue and UV light. The bulk of wavelengths from the sun throughout the day are on the NIR end. The entire spectrum of visible and non-visible light between UV and IR plays critical roles in human health, especially towards mitochondrial health and metabolism. To summarize these benefits and provide a general overview for the following article, the benefits are as follows:
- UV – aids in the production of vitamin D and melanin, but also causes DNA damage
- Vitamin D improves immune system function and can repair DNA damage
- Melanin stores electrons for use within mitochondria
- Blue – involved in our circadian rhythm as the absence of blue light triggers the production of melatonin, an important antioxidant.
- Near-infrared (NIR) – improves mitochondria function and energy production while also protecting us from the harms of blue and UV light.
Ultraviolet Light
Let’s begin with a discussion around the widely misunderstood light of UV. UV is often viewed as a dangerous form of light, given that it can cause DNA damage and lead to cancer. While true, this myopic point of view ignores the crucial benefits of UV light. UV light produces vitamin D, which counteracts the DNA damage caused by UV while providing many other benefits. Additionally, UV light triggers the production of melanin, which aids in mitochondrial function. Like all physiological processes in the body that are vital to survival, there is a release of POMC-derived endorphins when skin comes into contact with UV light (Fell et al. 2014). Any person likely reading this article can agree that sitting under the sun simply feels amazing. We are drawn to it in a deeply meaningful sense.
Vitamin D is one of the most important chemicals regarding health, and it is poorly named. The term ‘vitamin’ refers to a compound that is important for health but cannot be adequately made within the body and must be retrieved externally. Peoples of the Northern and Southern hemisphere who are exposed to less UV light during winter would, for example, historically retrieve their vitamin D from foods such as oily fish, seal blubber, whale blubber, and polar bear liver (Wacker and Holick 2013). In a similar way, vitamin D was given its name 100 years ago when it was found that cod-liver oil was capable of curing rickets, when it was found that the so-called vitamin could promote calcium deposition in bones (McCollum et al. 1922). It was only until much later, in 1981, when scientists discovered that human skin could also synthesize vitamin D (M. F. Holick 1981). A majority of human vitamin D is produced by the skin when exposed to UVB (280 – 315 nm), while a minor amount is gained through food (Prietl et al. 2013; Wacker and Holick 2013). Most cells and organs in the human body have vitamin D receptors and many organs also have the ability to produce it, this speaks to the incredibly important nature of this compound towards our health (Prietl et al. 2013; Wacker and Holick 2013). Vitamin D deficiency has been associated with various types of cancer, autoimmune disorders, type 1 diabetes mellitus, multiple sclerosis (MS), cardiovascular disease, and even schizophrenia (Michael F. Holick 2007; Wacker and Holick 2013). Multiple studies have also found that vitamin D deficiency increases all-cause mortality (Garland et al. 2014; Yang et al. 2011; Chowdhury et al. 2014).
Though the historical benefits to vitamin D were attributed mainly to bone health, it is far more important. Vitamin D plays a critical role in protecting against invasive pathogens, reducing autoimmunity, and maintaining overall health (Wimalawansa 2023). Regarding immunity, one way it does this is by causing a shift away from proinflammatory responses to one more centered around T cell activation (Prietl et al. 2013). Vitamin D has therefore been shown to benefit other disorders that are related to immunity, such as a study that found vitamin D supplementation during pregnancy reduced asthmatic symptoms in children (Litonjua et al. 2016). That being said, it is important to highlight how there is no substitution for natural sunlight as a means of getting vitamin D. Naturally produced vitamin D from the skin lasts 2-3 times longer in the body (Wacker and Holick 2013). This is one of many likely reasons why the natural avenue should always be preferred over the supplemental. A similar line of reasoning follows in methods of getting UV light, as natural sun exposure leads to a decrease of all-cause mortality while the use of artificial tanning beds has been shown to increase all-cause and cancer mortality (Yang et al. 2011). More on why this likely occurs later.
Beyond vitamin D’s benefits to the immune system, it is important to focus on the compound’s role in mitochondrial health. In a previous article I wrote titled “Sunlight and Health”, I delve deeper into the importance of mitochondria and the science of how they work. In simplicity, imagine how all life on earth centers around energy. The sun provides energy to the earth, and the plethora of life on earth harness and facilitate the flow of that energy. Plants and animals share a symbiotic relationship within this system. Plants, through photosynthesis, take in sunlight, CO2, and water and create a glucose precursor and oxygen. This occurs within the chloroplast of plant cells. Within human cells, we have mitochondria. Our mitochondria, in turn, take in oxygen and glucose and produce CO2, water, and energy for our bodies in the form of ATP. What the plant breathes out, we breathe in, and vice versa. Mitochondria are central to all animal life on earth, and the ATP produced is central to all physiologic function. If your mitochondria are unhealthy, you are unhealthy and will experience disease.
Vitamin D plays a role in mitochondrial health at a DNA level. Our cells have DNA, which we inherited from our mother and father. On top of that, the mitochondria within our cells have their own set of DNA (mtDNA). Our mitochondria come from our mother’s egg, and therefore our mtDNA always is inherited from our mother. UV light can cause damage to both our DNA and mtDNA (Birch-Machin, Russell, and Latimer 2013). This is what gives UV light the ability to cause cancer. Additionally, damage to the mtDNA within our mitochondria can lead to mitochondrial dysfunction. The more poorly our mitochondria function, the less energy we produce for our cells, and the less healthy our cells become. There is research being developed that suggests the role of vitamin D is to counterbalance this danger by regulating gene transcription and reducing mtDNA damage. A mouse study conducted in 2011, for example, found that different shapes of vitamin D reduce the development of tumors in mice following UV exposure (Dixon et al. 2011). It is not unlike nature to create a system of checks and balances, to ensure that the damaging effects of UV light are counterbalanced by a compound produced by the body when exposure to that same light.
While vitamin D may be important for mitochondrial health by protecting against mtDNA damage, melanin potentially plays a much larger role. Melanin is the pigment in our skin that make us darker. Not only is the diversity in skin tones across humans due to variations in melanin content, but a tan is also the creation of more melanin. To be more specific, the skin’s exposure to UVA (315-400nm) leads to the creation of melanin (Wicks et al. 2011). The most obvious benefit to the production of melanin, which most people could appreciate, is that the darker or tanner our skin is, the less damage we will receive from UV light. In this way, melanin shares a similar responsibility to vitamin D, where both are protecting the body against the very thing that forms them. Even more crucially however, melanin acts as a battery for the mitochondria.
During cellular respiration, where mitochondria turn oxygen and glucose into energy, electrons are stripped from the glucose for use. In other words, what our mitochondria really need are oxygen and electrons, and the glucose is simply a means to an end. If the mitochondria are the engine, then the electrons are the fuel (assuming you are still breathing). Due to its chemical structure, melanin is a natural reversible oxidation-reduction system (Figge 1939). In other words, it can both store and release electrons. Melanin is therefore a kind of battery, retrieving electrons from various sources, and storing them for future use in our mitochondria as a substitute for food. When stated this way, and considering how food is important because both fats and carbohydrates fuel the body by providing electrons to our mitochondria, one can imagine how vitally important melanin is. Melanin is central towards the availability of electrons for use in our body to produce the energy to live. Without adequate melanin, your mitochondria will starve for fuel and not provide your body with the energy it needs to thrive.
Blue Light
To contextualize the role blue light plays in human health, it is important to revisit an important byproduct of cellular respiration within mitochondria. When mitochondria turn electrons and oxygen into energy, there is a byproduct formed known as reactive oxygen species (ROS). ROS play important roles in the body, but in excess they can cause DNA damage and disrupt various cellular processes. For example, UV light causes cancer due to the ROS generated, and studies have found that blue light does the same in both the skin and eyes (Nakashima, Ohta, and Wolf 2017; Abdouh et al. 2024). This research suggests that excess blue light or blue light in isolation can damage the eyes and cause harm like UV light.
Blue and UV light are predominant during the middle of the day. Though both may cause oxidative stress on the body, the body simultaneously counteracts this damage through melatonin. Think of melatonin as the junk remover for mitochondria. Throughout the day mitochondria produce energy, and ROS is formed. During our nighttime sleep, melatonin plays an important role as an antioxidant and removes the excess ROS (Leon et al. 2004).
The relationship between blue light and melatonin is important. During the day, when blue light is present, our body suppresses the production of melatonin (West et al. 2011). When the sun sets and there is no longer a heavy presence of blue light, our body begins to produce melatonin for sleep. This is a central function for how our body gets tired at night and gets ready for sleep. This is also why artificial light at night, from our modern technology, is harmful to human health because it tricks the body into the continual suppression of melatonin production. Without proper melatonin production, our cells buildup too much ROS and this can cause mitochondrial dysfunction and other sleep related issues.
Beyond the importance of getting good sleep and producing melatonin to remove excess ROS from our cells, the existence of artificial light and excess blue light is problematic during the day as well. As stated previously, blue light causes ROS buildup in both the skin and eyes (Nakashima, Ohta, and Wolf 2017; Abdouh et al. 2024). As with most harms from sunlight, our body has adapted with a backup plan. During the day, when blue and UV light is present, there is simultaneous exposure to NIR light (650-1200nm). Recent research suggests that NIR also counterbalances the harm of blue light by increasing melatonin synthesis in the mitochondria (Tan et al. 2023). This highlights the importance of receiving the full spectrum of light from the sun, as one wavelength counterbalances the damages of the other.
Near-Infrared Light
While indoor living has been commonplace for humans across generations, and modern technology has over saturated our bodies with blue light, some recent changes to our technology have made things worse. Incandescent light bulbs emit NIR light, this is why they got warm. However, LED lights do not emit NIR light. Therefore, where people of past generations were potentially exposed to a lot of artificial light at night, this was counterbalanced by the NIR emitted by those same lightbulbs. Now, modern humans use LEDs and spend 93% of our time indoors with zero exposure to NIR, which is 90% of the light emitted by the sun (Tan et al. 2023).
Not only does NIR light protect our bodies from the damaging consequences of blue light, but it similarly protects us against UV light. As stated previously, NIR may result in the production of melatonin within mitochondria during the day, helping protect against the ROS buildup and mtDNA damage. Additionally, research has also found that NIR light protects from UV light in other ways. For example, a study in 2008 found that pretreating skin with NIR light (660nm) prevented sunburns (Barolet and Boucher 2008). Another study found that red and NIR light (620-690nm) altered gene expression and upregulated DNA repair (Kim et al. 2019). Again, this highlights the theme that the body has produced the means to protect itself from the harms of the sun via other rays emitted. However, the protection from harmful rays is best achieved when exposed to the full spectrum of light wavelengths as they change throughout the day. The light of dawn and dusk is predominately red and NIR. Therefore, this research suggests that being exposed to morning light will protect the body from the potentially cancer-causing effects of the UV light later in the day. A human being who lived outside would naturally be exposed to this spectrum of light every day. However, modern humans may be inside in the morning, go to the beach during the middle of the day, and get sunburned because they do not properly receive the full spectrum of light as nature intended every day.
Lastly, it is important to explore the ways NIR improves mitochondrial function. If electrons are the fuel source for this engine, and melatonin is the junk removal, then NIR is the lubricant. NIR improves the energy output of mitochondria, and there are various hypotheses for how this occurs. One hypothesis is that NIR boosts the functionality of cytochrome c oxidase, one of the chromophores used in the electron transport chain (ETC) of cellular respiration within mitochondria (De Freitas and Hamblin 2016). Another involves NIR light’s ability to modify the viscosity of water which increases the efficiency of the final step in the ETC, the ATP synthase (Sommer, Haddad, and Fecht 2015). ATP synthase can be thought of as a kind of pump that produces ATP, in this way NIR can be thought of almost literally as a lubricant for this pump.
Summary
In summary, the research involving how sunlight affects mitochondrial health highlights the importance of the full spectrum of wavelengths, each of which plays a vital role in human health throughout the day. Having exposure to one, without the other, can lead to imbalances and mitochondrial disease. The red and NIR light in the morning helps our mitochondria produce more energy throughout the day, while also preparing our bodies for the beneficial yet dangerous wavelengths to come. In the middle of the day, we receive much more UV and blue light, which help us produce vitamin D and melanin, both central to health and wellness. Once the sun sets, and blue light is absent, we produce melatonin for sleep. During our sleep, the melatonin removes the dangerous byproducts of our energy-producing day, protecting us from disease and preparing us for the following day. Mitochondria are central to human health and life on earth, and the rays from the sun are central to mitochondrial health.
Respecting nature and its cycles is vital for us humans who are increasingly immersing ourselves in a world dominated by technology. Our ancestors did not have to reconcile with these ideas, because life forced these exposures upon them. If we wish to maintain health in our modern world, we must be able to find balance. Even though some might think they can escape into the virtual world, our bodies will always and forever be connected and reliant upon the natural one.
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Tan, Dun-Xian, Russel J. Reiter, Scott Zimmerman, and Ruediger Hardeland. 2023. “Melatonin: Both a Messenger of Darkness and a Participant in the Cellular Actions of Non-Visible Solar Radiation of near Infrared Light.” Biology 12 (1): 89.
Wacker, Matthias, and Michael F. Holick. 2013. “Sunlight and Vitamin D: A Global Perspective for Health: A Global Perspective for Health.” Dermato-Endocrinology 5 (1): 51–108.
West, Kathleen E., Michael R. Jablonski, Benjamin Warfield, Kate S. Cecil, Mary James, Melissa A. Ayers, James Maida, et al. 2011. “Blue Light from Light-Emitting Diodes Elicits a Dose-Dependent Suppression of Melatonin in Humans.” Journal of Applied Physiology (Bethesda, Md.: 1985) 110 (3): 619–26.
Wicks, Nadine L., Jason W. Chan, Julia A. Najera, Jonathan M. Ciriello, and Elena Oancea. 2011. “UVA Phototransduction Drives Early Melanin Synthesis in Human Melanocytes.” Current Biology: CB 21 (22): 1906.
Wimalawansa, Sunil J. 2023. “Infections and Autoimmunity-the Immune System and Vitamin D: A Systematic Review.” Nutrients 15 (17): 3842.
Yang, Ling, Marie Lof, Marit Bragelien Veierød, Sven Sandin, Hans-Olov Adami, and Elisabete Weiderpass. 2011. “Ultraviolet Exposure and Mortality among Women in Sweden.” Cancer Epidemiology, Biomarkers & Prevention: A Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology 20 (4): 683–90.
- UV – aids in the production of vitamin D and melanin, but also causes DNA damage
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@ c066aac5:6a41a034
2025-04-05 16:58:58I’m drawn to extremities in art. The louder, the bolder, the more outrageous, the better. Bold art takes me out of the mundane into a whole new world where anything and everything is possible. Having grown up in the safety of the suburban midwest, I was a bit of a rebellious soul in search of the satiation that only came from the consumption of the outrageous. My inclination to find bold art draws me to NOSTR, because I believe NOSTR can be the place where the next generation of artistic pioneers go to express themselves. I also believe that as much as we are able, were should invite them to come create here.
My Background: A Small Side Story
My father was a professional gamer in the 80s, back when there was no money or glory in the avocation. He did get a bit of spotlight though after the fact: in the mid 2000’s there were a few parties making documentaries about that era of gaming as well as current arcade events (namely 2007’sChasing GhostsandThe King of Kong: A Fistful of Quarters). As a result of these documentaries, there was a revival in the arcade gaming scene. My family attended events related to the documentaries or arcade gaming and I became exposed to a lot of things I wouldn’t have been able to find. The producer ofThe King of Kong: A Fistful of Quarters had previously made a documentary calledNew York Dollwhich was centered around the life of bassist Arthur Kane. My 12 year old mind was blown: The New York Dolls were a glam-punk sensation dressed in drag. The music was from another planet. Johnny Thunders’ guitar playing was like Chuck Berry with more distortion and less filter. Later on I got to meet the Galaga record holder at the time, Phil Day, in Ottumwa Iowa. Phil is an Australian man of high intellect and good taste. He exposed me to great creators such as Nick Cave & The Bad Seeds, Shakespeare, Lou Reed, artists who created things that I had previously found inconceivable.
I believe this time period informed my current tastes and interests, but regrettably I think it also put coals on the fire of rebellion within. I stopped taking my parents and siblings seriously, the Christian faith of my family (which I now hold dearly to) seemed like a mundane sham, and I felt I couldn’t fit in with most people because of my avant-garde tastes. So I write this with the caveat that there should be a way to encourage these tastes in children without letting them walk down the wrong path. There is nothing inherently wrong with bold art, but I’d advise parents to carefully find ways to cultivate their children’s tastes without completely shutting them down and pushing them away as a result. My parents were very loving and patient during this time; I thank God for that.
With that out of the way, lets dive in to some bold artists:
Nicolas Cage: Actor
There is an excellent video by Wisecrack on Nicolas Cage that explains him better than I will, which I will linkhere. Nicolas Cage rejects the idea that good acting is tied to mere realism; all of his larger than life acting decisions are deliberate choices. When that clicked for me, I immediately realized the man is a genius. He borrows from Kabuki and German Expressionism, art forms that rely on exaggeration to get the message across. He has even created his own acting style, which he calls Nouveau Shamanic. He augments his imagination to go from acting to being. Rather than using the old hat of method acting, he transports himself to a new world mentally. The projects he chooses to partake in are based on his own interests or what he considers would be a challenge (making a bad script good for example). Thus it doesn’t matter how the end result comes out; he has already achieved his goal as an artist. Because of this and because certain directors don’t know how to use his talents, he has a noticeable amount of duds in his filmography. Dig around the duds, you’ll find some pure gold. I’d personally recommend the filmsPig, Joe, Renfield, and his Christmas film The Family Man.
Nick Cave: Songwriter
What a wild career this man has had! From the apocalyptic mayhem of his band The Birthday Party to the pensive atmosphere of his albumGhosteen, it seems like Nick Cave has tried everything. I think his secret sauce is that he’s always working. He maintains an excellent newsletter calledThe Red Hand Files, he has written screenplays such asLawless, he has written books, he has made great film scores such asThe Assassination of Jesse James by the Coward Robert Ford, the man is religiously prolific. I believe that one of the reasons he is prolific is that he’s not afraid to experiment. If he has an idea, he follows it through to completion. From the albumMurder Ballads(which is comprised of what the title suggests) to his rejected sequel toGladiator(Gladiator: Christ Killer), he doesn’t seem to be afraid to take anything on. This has led to some over the top works as well as some deeply personal works. Albums likeSkeleton TreeandGhosteenwere journeys through the grief of his son’s death. The Boatman’s Callis arguably a better break-up album than anything Taylor Swift has put out. He’s not afraid to be outrageous, he’s not afraid to offend, but most importantly he’s not afraid to be himself. Works I’d recommend include The Birthday Party’sLive 1981-82, Nick Cave & The Bad Seeds’The Boatman’s Call, and the filmLawless.
Jim Jarmusch: Director
I consider Jim’s films to be bold almost in an ironic sense: his works are bold in that they are, for the most part, anti-sensational. He has a rule that if his screenplays are criticized for a lack of action, he makes them even less eventful. Even with sensational settings his films feel very close to reality, and they demonstrate the beauty of everyday life. That's what is bold about his art to me: making the sensational grounded in reality while making everyday reality all the more special. Ghost Dog: The Way of the Samurai is about a modern-day African-American hitman who strictly follows the rules of the ancient Samurai, yet one can resonate with the humanity of a seemingly absurd character. Only Lovers Left Aliveis a vampire love story, but in the middle of a vampire romance one can see their their own relationships in a new deeply human light. Jim’s work reminds me that art reflects life, and that there is sacred beauty in seemingly mundane everyday life. I personally recommend his filmsPaterson,Down by Law, andCoffee and Cigarettes.
NOSTR: We Need Bold Art
NOSTR is in my opinion a path to a better future. In a world creeping slowly towards everything apps, I hope that the protocol where the individual owns their data wins over everything else. I love freedom and sovereignty. If NOSTR is going to win the race of everything apps, we need more than Bitcoin content. We need more than shirtless bros paying for bananas in foreign countries and exercising with girls who have seductive accents. Common people cannot see themselves in such a world. NOSTR needs to catch the attention of everyday people. I don’t believe that this can be accomplished merely by introducing more broadly relevant content; people are searching for content that speaks to them. I believe that NOSTR can and should attract artists of all kinds because NOSTR is one of the few places on the internet where artists can express themselves fearlessly. Getting zaps from NOSTR’s value-for-value ecosystem has far less friction than crowdfunding a creative project or pitching investors that will irreversibly modify an artist’s vision. Having a place where one can post their works without fear of censorship should be extremely enticing. Having a place where one can connect with fellow humans directly as opposed to a sea of bots should seem like the obvious solution. If NOSTR can become a safe haven for artists to express themselves and spread their work, I believe that everyday people will follow. The banker whose stressful job weighs on them will suddenly find joy with an original meme made by a great visual comedian. The programmer for a healthcare company who is drowning in hopeless mundanity could suddenly find a new lust for life by hearing the song of a musician who isn’t afraid to crowdfund their their next project by putting their lighting address on the streets of the internet. The excel guru who loves independent film may find that NOSTR is the best way to support non corporate movies. My closing statement: continue to encourage the artists in your life as I’m sure you have been, but while you’re at it give them the purple pill. You may very well be a part of building a better future.
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@ 609f186c:0aa4e8af
2025-05-16 20:57:43Google says that Android 16 is slated to feature an optional high security mode. Cool.
Advanced Protection has a bunch of requested features that address the kinds of threats we worry about.
It's the kind of 'turn this one thing on if you face elevated risk' that we've been asking for from Google.
And likely reflects some learning after Google watched Apple 's Lockdown Mode play out. I see a lot of value in this..
Here are some features I'm excited to see play out:
The Intrusion Logging feature is interesting & is going to impose substantial cost on attackers trying to hide evidence of exploitation. Logs get e2ee encrypted into the cloud. This one is spicy.
The Offline Lock, Inactivity Reboot & USB protection will frustrate non-consensual attempts to physically grab device data.
Memory Tagging Extension is going to make a lot of attack & exploitation categories harder.
2G Network Protection & disabling Auto-connect to insecure networks are going to address categories of threat from things like IMSI catchers & hostile WiFi.
I'm curious about some other features such as:
Spam & Scam detection: Google messages feature that suggests message content awareness and some kind of scanning.
Scam detection for Phone by Google is interesting & coming later. The way it is described suggests phone conversation awareness. This also addresses a different category of threat than the stuff above. I can see it addressing a whole category of bad things that regular users (& high risk ones too!) face. Will be curious how privacy is addressed or if this done purely locally. Getting messy: Friction points? I see Google thinking these through, but I'm going to add a potential concern: what will users do when they encounter friction? Will they turn this off & forget to re-enable? We've seen users turn off iOS Lockdown Mode when they run into friction for specific websites or, say, legacy WiFi. They then forget to turn it back on. And stay vulnerable.
Bottom line: users disabling Apple's Lockdown Mode for a temporary thing & leaving it off because they forget to turn it on happens a lot. This is a serious % of users in my experience...
And should be factored into design decisions for similar modes. I feel like a good balance is a 'snooze button' or equivalent so that users can disable all/some features for a brief few minute period to do something they need to do, and then auto re-enable.
Winding up:
I'm excited to see how Android Advanced Protection plays with high risk users' experiences. I'm also super curious whether the spam/scam detection features may also be helpful to more vulnerable users (think: aging seniors)...
Niche but important:
Some users, esp. those that migrated to security & privacy-focused Android distros because of because of the absence of such a feature are clear candidates for it... But they may also voice privacy concerns around some of the screening features. Clear communication from the Google Security / Android team will be key here.
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@ 3104fbbf:ac623068
2025-04-04 06:58:30Introduction
If you have a functioning brain, it’s impossible to fully stand for any politician or align completely with any political party. The solutions we need are not found in the broken systems of power but in individual actions and local initiatives. Voting for someone may be your choice, but relying solely on elections every few years as a form of political activism is a losing strategy. People around the world have fallen into the trap of thinking that casting a ballot once every four years is enough, only to return to complacency as conditions worsen. Voting for the "lesser of two evils" has been the norm for decades, yet expecting different results from the same flawed system is naive at best.
The truth is, governments are too corrupt to save us. In times of crisis, they won’t come to your aid—instead, they will tighten their grip, imposing more surveillance, control, and wealth extraction to benefit the oligarch class. To break free from this cycle, we must first protect ourselves individually—financially, geographically, and digitally—alongside our families.
Then, we must organize and build resilient local communities. These are the only ways forward. History has shown us time and again that the masses are easily deceived by the political circus, falling for the illusion of a "savior" who will fix everything. But whether right, center, or left, the story remains the same: corruption, lies, and broken promises. If you possess a critical and investigative mind, you know better than to place your trust in politicians, parties, or self-proclaimed heroes. The real solution lies in free and sovereign individuals who reject the herd mentality and take responsibility for their own lives.
From the beginning of time, true progress has come from individuals who think for themselves and act independently. The nauseating web of politicians, billionaires, and oligarchs fighting for power and resources has never been—and will never be—the answer to our problems. In a world increasingly dominated by corrupted governments, NGOs, and elites, ordinary people must take proactive steps to protect themselves and their families.
1. Financial Protection: Reclaiming Sovereignty Through Bitcoin
Governments and central banks have long manipulated fiat currencies, eroding wealth through inflation and bailouts that transfer resources to the oligarch class. Bitcoin, as a decentralized, censorship-resistant, and finite currency, offers a way out. Here’s what individuals can do:
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Adopt Bitcoin as a Savings Tool: Shift a portion of your savings into Bitcoin to protect against inflation and currency devaluation. Bitcoin’s fixed supply (21 million coins) ensures it cannot be debased like fiat money.
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Learn Self-Custody: Store your Bitcoin in a hardware wallet or use open-source software wallets. Avoid centralized exchanges, which are vulnerable to government seizure or collapse.
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Diversify Geographically: Hold assets in multiple jurisdictions to reduce the risk of confiscation or capital controls. Consider offshore accounts or trusts if feasible.
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Barter and Local Economies: In times of crisis, local barter systems and community currencies can bypass failing national systems. Bitcoin can serve as a global medium of exchange in such scenarios.
2. Geographical Flexibility: Reducing Dependence on Oppressive Systems
Authoritarian regimes thrive on controlling populations within fixed borders. By increasing geographical flexibility, individuals can reduce their vulnerability:
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Obtain Second Passports or Residencies: Invest in citizenship-by-investment programs or residency permits in countries with greater freedoms and lower surveillance.
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Relocate to Freer Jurisdictions: Research and consider moving to regions with stronger property rights, lower taxes, and less government overreach.
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Decentralize Your Life: Avoid keeping all your assets, family, or business operations in one location. Spread them across multiple regions to mitigate risks.
3. Digital Privacy: Fighting Surveillance with Advanced Tools
The rise of mass surveillance and data harvesting by governments and corporations threatens individual freedom. Here’s how to protect yourself:
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Use Encryption: Encrypt all communications using tools like Signal or ProtonMail. Ensure your devices are secured with strong passwords and biometric locks.
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Adopt Privacy-Focused Technologies: Use Tor for anonymous browsing, VPNs to mask your IP address, and open-source operating systems like Linux to avoid backdoors.
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Reject Surveillance Tech: Avoid smart devices that spy on you (e.g., Alexa, Google Home). Opt for decentralized alternatives like Mastodon instead of Twitter, or PeerTube instead of YouTube.
-
Educate Yourself on Digital Privacy: Learn about tools and practices that enhance your online privacy and security.
4. Building Resilient Local Communities: The Foundation of a Free Future
While individual actions are crucial, collective resilience is equally important. Governments are too corrupt to save populations in times of crisis—history shows they will instead impose more control and transfer wealth to the elite.
To counter this, communities must organize locally:
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Form Mutual Aid Networks: Create local groups that share resources, skills, and knowledge. These networks can provide food, medical supplies, and security during crises.
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Promote Local Economies: Support local businesses, farmers, and artisans. Use local currencies or barter systems to reduce dependence on centralized financial systems.
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Develop Off-Grid Infrastructure: Invest in renewable energy, water filtration, and food production to ensure self-sufficiency. Community gardens, solar panels, and rainwater harvesting are excellent starting points.
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Educate and Empower: Host workshops on financial literacy, digital privacy, and sustainable living. Knowledge is the most powerful tool against authoritarianism.
5. The Bigger Picture: Rejecting the Illusion of Saviors
The deep corruption within governments, NGOs, and the billionaire class is evident. These entities will never act in the interest of ordinary people. Instead, they will exploit crises to expand surveillance, control, and wealth extraction. The idea of a political “savior” is a dangerous illusion. True freedom comes from individuals taking responsibility for their own lives and working together to build decentralized, resilient systems.
Conclusion: A Call to Action
The path to a genuinely free humanity begins with individual action. By adopting Bitcoin, securing digital privacy, increasing geographical flexibility, and building resilient local communities, ordinary people can protect themselves against authoritarianism. Governments will not save us—they are the problem. It is up to us to create a better future, free from the control of corrupt elites.
-
The tools for liberation already exist.
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The question is: will we use them?
For those interested, I share ideas and solutions in my book « THE GATEWAY TO FREEDOM » https://blisshodlenglish.substack.com/p/the-gateway-to-freedom
⚡ The time to act is now. Freedom is not given—it is taken. ⚡
If you enjoyed this article, consider supporting it with a Zap!
My Substack ENGLISH = https://blisshodlenglish.substack.com/ My substack FRENCH = https://blisshodl.substack.com/
Get my Book « THE GATEWAY TO FREEDOM » here 🙏 => https://coinos.io/blisshodl
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@ a5ee4475:2ca75401
2025-05-15 14:44:45lista #descentralismo #compilado #portugues
*Algumas destas listas ainda estão sendo trocadas, portanto as versões mais recentes delas só estão visíveis no Amethyst por causa da ferramenta de edição.
Clients do Nostr e Outras Coisas
nostr:naddr1qq245dz5tqe8w46swpphgmr4f3047s6629t45qg4waehxw309aex2mrp0yhxgctdw4eju6t09upzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqvzqqqr4guxde6sl
Modelos de IA e Ferramentas
nostr:naddr1qq24xwtyt9v5wjzefe6523j32dy5ga65gagkjqgswaehxw309ahx7um5wghx6mmd9upzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqvzqqqr4guk62czu
Iniciativas de Bitcoin
nostr:naddr1qvzqqqr4gupzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqq2nvmn5va9x2nrxfd2k5smyf3ux7vesd9znyqxygt4
Profissionais Brasileiros no Nostr
nostr:naddr1qq24qmnkwe6y67zlxgc4sumrxpxxce3kf9fn2qghwaehxw309aex2mrp0yhxummnw3ezucnpdejz7q3q5hhygatg5gmjyfkkguqn54f9r6k8m5m6ksyqffgjrf3uut982sqsxpqqqp65wp8uedu
Comunidades em Português no Nostr
nostr:naddr1qq2hwcejv4ykgdf3v9gxykrxfdqk753jxcc4gqg4waehxw309aex2mrp0yhxgctdw4eju6t09upzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqvzqqqr4gu455fm3
Grupos em Português no Nostr
nostr:nevent1qqs98kldepjmlxngupsyth40n0h5lw7z5ut5w4scvh27alc0w86tevcpzpmhxue69uhkummnw3ezumt0d5hsygy7fff8g6l23gp5uqtuyqwkqvucx6mhe7r9h7v6wyzzj0v6lrztcspsgqqqqqqs3ndneh
Jogos de Código Aberto
Open Source Games nostr:naddr1qvzqqqr4gupzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqq2kvwp3v4hhvk2sw3j5sm6h23g5wkz5ddzhz8x40v0
Itens Úteis com Esquemas Disponíveis
nostr:naddr1qqgrqvp5vd3kycejxask2efcv4jr2qgswaehxw309ahx7um5wghx6mmd9upzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqvzqqqr4guc43v6c
Formatação de Texto em Markdown
(Amethyst, Yakihone e outros) nostr:naddr1qvzqqqr4gupzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqq2454m8dfzn26z4f34kvu6fw4rysnrjxfm42wfpe90
Outros Links
nostr:nevent1qqsrm6ywny5r7ajakpppp0lt525n0s33x6tyn6pz0n8ws8k2tqpqracpzpmhxue69uhkummnw3ezumt0d5hsygp6e5ns0nv3dun430jky25y4pku6ylz68rz6zs7khv29q6rj5peespsgqqqqqqsmfwa78
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@ b2d670de:907f9d4a
2025-02-28 16:39:38onion-service-nostr-relays
A list of nostr relays exposed as onion services.
The list
| Relay name | Description | Onion url | Operator | Payment URL | Payment options | | --- | --- | --- | --- | --- | --- | | nostr.oxtr.dev | Same relay as clearnet relay nostr.oxtr.dev | ws://oxtrdevav64z64yb7x6rjg4ntzqjhedm5b5zjqulugknhzr46ny2qbad.onion | operator | N/A | N/A | | relay.snort.social | Same relay as clearnet relay relay.snort.social | wss://skzzn6cimfdv5e2phjc4yr5v7ikbxtn5f7dkwn5c7v47tduzlbosqmqd.onion | operator | N/A | N/A | | nostr.thesamecat.io | Same relay as clearnet relay nostr.thesamecat.io | ws://2jsnlhfnelig5acq6iacydmzdbdmg7xwunm4xl6qwbvzacw4lwrjmlyd.onion | operator | N/A | N/A | | nostr.land | The nostr.land paid relay (same as clearnet) | ws://nostrland2gdw7g3y77ctftovvil76vquipymo7tsctlxpiwknevzfid.onion | operator | Payment URL | BTC LN | | bitcoiner.social | No auth required, currently | ws://bitcoinr6de5lkvx4tpwdmzrdfdpla5sya2afwpcabjup2xpi5dulbad.onion | operator | N/A | N/A | | relay.westernbtc.com | The westernbtc.com paid relay | ws://westbtcebhgi4ilxxziefho6bqu5lqwa5ncfjefnfebbhx2cwqx5knyd.onion | operator | Payment URL | BTC LN | | freelay.sovbit.host | Free relay for sovbit.host | ws://sovbitm2enxfr5ot6qscwy5ermdffbqscy66wirkbsigvcshumyzbbqd.onion | operator | N/A | N/A | | nostr.sovbit.host | Paid relay for sovbit.host | ws://sovbitgz5uqyh7jwcsudq4sspxlj4kbnurvd3xarkkx2use3k6rlibqd.onion | operator | N/A | N/A | | nostr.wine | 🍷 nostr.wine relay | ws://nostrwinemdptvqukjttinajfeedhf46hfd5bz2aj2q5uwp7zros3nad.onion | operator | Payment URL | BTC LN, BTC, Credit Card/CashApp (Stripe) | | inbox.nostr.wine | 🍷 inbox.nostr.wine relay | ws://wineinboxkayswlofkugkjwhoyi744qvlzdxlmdvwe7cei2xxy4gc6ad.onion | operator | Payment URL | BTC LN, BTC | | filter.nostr.wine | 🍷 filter.nostr.wine proxy relay | ws://winefiltermhqixxzmnzxhrmaufpnfq3rmjcl6ei45iy4aidrngpsyid.onion | operator | Payment URL | BTC LN, BTC | | N/A | N/A | ws://pzfw4uteha62iwkzm3lycabk4pbtcr67cg5ymp5i3xwrpt3t24m6tzad.onion:81 | operator | N/A | N/A | | nostr.fractalized.net | Free relay for fractalized.net | ws://xvgox2zzo7cfxcjrd2llrkthvjs5t7efoalu34s6lmkqhvzvrms6ipyd.onion | operator | N/A | N/A | | nfrelay.app | nfrelay.app aggregator relay (nostr-filter-relay) | ws://nfrelay6saohkmipikquvrn6d64dzxivhmcdcj4d5i7wxis47xwsriyd.onion | operator | N/A | N/A | relay.nostr.net | Public relay from nostr.net (Same as clearnet) | ws://nostrnetl6yd5whkldj3vqsxyyaq3tkuspy23a3qgx7cdepb4564qgqd.onion | operator | N/A | N/A | | nerostrator | Free to read, pay XMR to relay | ws://nerostrrgb5fhj6dnzhjbgmnkpy2berdlczh6tuh2jsqrjok3j4zoxid.onion | operator |Payment URL | XMR | | nostr.girino.org | Public relay from nostr.girino.org | ws://gnostr2jnapk72mnagq3cuykfon73temzp77hcbncn4silgt77boruid.onion | operator | N/A | N/A | | wot.girino.org | WoT relay from wot.girino.org | ws://girwot2koy3kvj6fk7oseoqazp5vwbeawocb3m27jcqtah65f2fkl3yd.onion | operator | N/A | N/A | | haven.girino.org/{outbox, inbox, chat, private} | Haven smart relay from haven.girino.org | ws://ghaven2hi3qn2riitw7ymaztdpztrvmm337e2pgkacfh3rnscaoxjoad.onion/{outbox, inbox, chat, private} | operator | N/A | N/A | | relay.nostpy.lol | Free Web of Trust relay (Same as clearnet) | ws://pemgkkqjqjde7y2emc2hpxocexugbixp42o4zymznil6zfegx5nfp4id.onion | operator |N/A | N/A | | Poster.place Nostr Relay | N/A | ws://dmw5wbawyovz7fcahvguwkw4sknsqsalffwctioeoqkvvy7ygjbcuoad.onion | operator | N/A | N/A | | Azzamo Relay | Azzamo Premium Nostr relay. (paid) | ws://q6a7m5qkyonzb5fk5yv4jyu3ar44hqedn7wjopg737lit2ckkhx2nyid.onion | operator | Payment URL | BTC LN | | Azzamo Inbox Relay | Azzamo Group and Private message relay. (Freemium) | ws://gp5kiwqfw7t2fwb3rfts2aekoph4x7pj5pv65re2y6hzaujsxewanbqd.onion | operator | Payment URL | BTC LN | | Noderunners Relay | The official Noderunners Nostr Relay. | ws://35vr3xigzjv2xyzfyif6o2gksmkioppy4rmwag7d4bqmwuccs2u4jaid.onion | operator | Payment URL | BTC LN |
Contributing
Contributions are encouraged to keep this document alive. Just open a PR and I'll have it tested and merged. The onion URL is the only mandatory column, the rest is just nice-to-have metadata about the relay. Put
N/A
in empty columns.If you want to contribute anonymously, please contact me on SimpleX or send a DM on nostr using a disposable npub.
Operator column
It is generally preferred to use something that includes a NIP-19 string, either just the string or a url that contains the NIP-19 string in it (e.g. an njump url).
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@ 7bdef7be:784a5805
2025-04-02 12:02:45We value sovereignty, privacy and security when accessing online content, using several tools to achieve this, like open protocols, open OSes, open software products, Tor and VPNs. ## The problem Talking about our social presence, we can manually build up our follower list (social graph), pick a Nostr client that is respectful of our preferences on what to show and how, but with the standard following mechanism, our main feed is public, **so everyone can actually snoop** what we are interested in, and what is supposable that we read daily. ## The solution Nostr has a simple solution for this necessity: encrypted lists. Lists are what they appear, a collection of people or interests (but they can also group much other stuff, see [NIP-51](https://github.com/nostr-protocol/nips/blob/master/51.md)). So we can create lists with contacts that we don't have in our main social graph; these lists can be used primarily to create **dedicated feeds**, but they could have other uses, for example, related to monitoring. The interesting thing about lists is that they can also be **encrypted**, so unlike the basic following list, which is always public, we can hide the lists' content from others. The implications are obvious: we can not only have a more organized way to browse content, but it is also **really private one**. One might wonder what use can really be made of private lists; here are some examples: - Browse “can't miss” content from users I consider a priority; - Supervise competitors or adversarial parts; - Monitor sensible topics (tags); - Following someone without being publicly associated with them, as this may be undesirable; The benefits in terms of privacy as usual are not only related to the casual, or programmatic, observer, but are also evident when we think of **how many bots scan our actions to profile us**. ## The current state Unfortunately, lists are not widely supported by Nostr clients, and encrypted support is a rarity. Often the excuse to not implement them is that they are harder to develop, since they require managing the encryption stuff ([NIP-44](https://github.com/nostr-protocol/nips/blob/master/51.md)). Nevertheless, developers have an easier option to start offering private lists: give the user the possibility to simply **mark them as local-only**, and never push them to the relays. Even if the user misses the sync feature, this is sufficient to create a private environment. To date, as far as I know, the best client with list management is Gossip, which permits to manage **both encrypted and local-only lists**. Beg your Nostr client to implement private lists!
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@ 91bea5cd:1df4451c
2025-05-14 10:47:44A origem do Dia das Mães
Anna Jarvis (1864-1948 Virgínia Ocidental), uma ativista americana, fundou o Dia das Mães nos Estados Unidos há mais de um século, escolhendo o segundo domingo de maio para tal celebração; mesma data que é comemorada até hoje em muitos países do mundo.
Ela nasceu durante a Guerra Civil, e viu sua mãe, Ann Reeves Jarvis, trabalhar na organização de Clubes de Trabalho Materno para cuidar de soldados de ambos os lados da guerra, a fim de diminuir as diferenças entre as mães do Norte e do Sul.
Em 1910, o Dia das Mães tornou-se feriado estadual na Virgínia Ocidental (EUA) e, em 1914, foi declarado feriado nacional pelo presidente Woodrow Wilson.
Segundo historiadores, Anna imaginava o feriado como um retorno ao lar, um dia para homenagear a sua mãe, a única mulher que dedicou sua vida à Anna. Ela escolheu o segundo domingo de maio porque seria sempre próximo de 9 de maio, o dia da morte de sua mãe, que faleceu em 1905.
E por que Anna Jarvis passou a odiar a data?
Acontece que a data começou a ter um apelo comercial, e Anna nunca quis que o dia se tornasse comercial, mas sim, só uma celebração às figuras maternas. Então ela acabou se opondo à comercialização e popularização do feriado.
Com o feriado, as indústrias floral, de cartões comemorativos e de doces começaram a ficar gananciosas para vender os seus produtos e subiram os preços nesta data, a fim de lucrarem mais.
Para Anna, "estavam comercializando o seu Dia das Mães". Para um jornal da época, ela comentou: "O que vocês farão para afugentar charlatões, bandidos, piratas, mafiosos, sequestradores e outros cupins que, com sua ganância, minam um dos movimentos e celebrações mais nobres e verdadeiros?".
Ela se irritava com qualquer organização que usasse seu dia para qualquer coisa que não fosse seu propósito original e sentimental, dizem historiadores. Em 1920, ela já incentivava as pessoas a não comprarem flores, por exemplo.
Além disso, instituições de caridade usavam o feriado para arrecadar fundos com a intenção de ajudar mães pobres; porém, como contam, elas não estavam usando o dinheiro para mães pobres, como alegavam.
Anna reivindicou os direitos autorais da frase "Segundo domingo de maio, Dia das Mães" ("Second Sunday in May, Mother's Day") e passou a vida lutando contra a comercialização da data. Um dos seus últimos atos foi ir de porta em porta na Filadélfia (EUA) pedindo assinaturas para apoiar a revogação do Dia das Mães.
Anna Jarvis nunca se casou e nem teve filhos, dedicando sua vida principalmente à causa do Dia das Mães. Ela faleceu em West Chester, na Pensilvânia (EUA), no dia 24 de novembro de 1948, aos 84 anos, devido a uma insuficiência cardíaca.
Fontes
- https://www.bbc.com/news/stories-52589173
- https://aventurasnahistoria.com.br/noticias/historia-hoje/dia-das-maes-por-que-mulher-que-criou-o-feriado-passou-odiar-data.phtml
- https://www.tempo.com/noticias/actualidade/dia-das-maes-por-que-a-mulher-que-inventou-a-data-se-arrependeu-de-te-la-criado.html
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@ 06b7819d:d1d8327c
2024-12-03 09:00:46The History of Bananas as an Exportable Fruit and the Rise of Banana Republics
Bananas became a significant export in the late 19th century, fueled by advancements in transportation and refrigeration that allowed the fruit to travel long distances without spoilage. Originally native to Southeast Asia, bananas were introduced to the Americas by European colonists. By the late 1800s, companies like the United Fruit Company (later Chiquita) and Standard Fruit Company (now Dole) began cultivating bananas on a large scale in Central America and the Caribbean.
These corporations capitalized on the fruit’s appeal—bananas were cheap, nutritious, and easy to transport. The fruit quickly became a staple in Western markets, especially in the United States. However, the rapid expansion of banana exports came at a significant political and social cost to the countries where the fruit was grown.
To maintain control over banana production and maximize profits, these companies required vast amounts of arable land, labor, and favorable trade conditions. This often led them to form close relationships with local governments, many of which were authoritarian and corrupt. The companies influenced policies to secure land concessions, suppress labor rights, and maintain low taxes.
The term “banana republic” was coined by writer O. Henry in 1904 to describe countries—particularly in Central America—that became politically unstable due to their economic dependence on a single export crop, often controlled by foreign corporations.
The U.S. government frequently supported these regimes as part of its broader strategy during the Cold War to counter communist influence in the region. Washington feared that labor movements and demands for land reform, often supported by the peasantry and indigenous groups, could lead to the rise of socialist or communist governments. Consequently, the U.S. backed coups, such as the 1954 overthrow of Guatemala’s democratically elected President Jacobo Árbenz, who had threatened United Fruit’s interests by redistributing unused land.
These interventions created a legacy of exploitation, environmental degradation, and political instability in many banana-exporting countries. While bananas remain a global dietary staple, their history underscores the complex interplay of economics, politics, and imperialism.
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@ 79008e78:dfac9395
2025-03-22 11:22:07Keys and Addresses
อลิซต้องการจ่ายเงินให้กับบ๊อบแต่โหนดของบิตคอยน์ในระบบหลายพันโหนดจะตรวจสอบธุรกรรมของเธอ โดยไม่รู้ว่าอลิซหรือบ๊อบเป็นใคร ละเราต้องการรักษาความเป็นส่วนตัวของพวกเขาไว้เช่นนี้ อลิซจำเป็นต้องสื่อสารว่าบ๊อบควรได้รับบิตคอยน์บางส่วนของเธอโดยไม่เชื่อมโยงแง่มุมใด ๆ ของธุรกรรมนั้นกับตัวตนในโลกจริงของบ๊อบ หรือกับการชำระเงินด้วยบิตคอยน์ครั้งอื่น ๆ ที่บ๊อบได้รับ อลิซใช้ต้องทำให้มั่นใจว่ามีเพียแค่บ๊อบเท่านั้นที่สามารถใช้จ่ายบิตคอยน์ที่เขาได้รับต่อไปได้
ในบิตคอยน์ไวท์เปเปอร์ได้อธิบายถึงแผนการที่เรียบง่ายมากสำหรับการบรรลุเป้าหมายเหล่านั้น ดังที่แสดงในรูปด้านล่างนี้
ตัวของผู้รับอย่างบ๊อบเองจะได้รับบิตคอยน์ไปยัง public key ของเขาที่ถูกลงนามโดยผู้จ่ายอย่างอลิซ โดยบิตคอยน์ที่อลิซนำมาจ่ายนั้นก็ได้รับมาจากที่ใครสักคนส่งมาที่ public key ของเธอ และเธอก็ใช้ private key ของเธอในการลงนามเพื่อสร้างลายเซ็นของเธอและโหนดต่าง ๆ ของบิตคอยน์จะทำการตรวจสอบว่าลายเซ็นของอลิซผูกมัดกับเอาต์พุตของฟังก์ชันแฮชซึ่งตัวมันเองผูกมัดกับ public key ของบ๊อบและรายละเอียดธุรกรรมอื่นๆ
ในบทนี้เราจะพิจารณาpublic key private key Digital signatrue และ hash function จากนั้นใช้ทั้งหมดนี้ร่วมกันเพื่ออธิบาย address ที่ใช้โดยซอฟต์แวร์บิตคอยน์สมัยใหม่
Public Key Cryptography (การเข้ารหัสของ public key)
ระบบเข้ารหัสของ public key ถูกคิดค้นขึ้นในทศวรรษ 1970 มาจากรากฐานทางคณิตศาสตร์สำหรับความปลอดภัยของคอมพิวเตอร์และข้อมูลสมัยใหม่
นับตั้งแต่การคิดค้นระบบเข้ารหัส public key ได้มีการค้นพบฟังก์ชันทางคณิตศาสตร์ที่เหมาะสมหลายอย่าง เช่น การยกกำลังของจำนวนเฉพาะและการคูณของเส้นโค้งวงรี โดยฟังก์ชันทางคณิตศาสตร์เหล่านี้สามารถคำนวณได้ง่ายในทิศทางหนึ่ง แต่เป็นไปไม่ได้ที่จะคำนวณในทิศทางตรงกันข้ามโดยใช้คอมพิวเตอร์และอัลกอริทึมที่มีอยู่ในปัจจุบัน จากฟังก์ชันทางคณิตศาสตร์เหล่านี้ การเข้ารหัสลับช่วยให้สามารถสร้างลายเซ็นดิจิทัลที่ไม่สามารถปลอมแปลงได้และบิตคอยน์ได้ใช้การบวกและการคูณของเส้นโค้งวงรีเป็นพื้นฐานสำหรับการเข้ารหัสลับของมัน
ในบิตคอยน์ เราสามารถใช้ระบบเข้ารหัส public key เพื่อสร้างคู่กุญแจที่ควบคุมการเข้าถึงบิตคอยน์ คู่กุญแจประกอบด้วย private key และ public key ที่ได้มาจาก private key public keyใช้สำหรับรับเงิน และ private key ใช้สำหรับลงนามในธุรกรรมเพื่อใช้จ่ายเงิน
ความสัมพันธ์ทางคณิตศาสตร์ระหว่าง public key และ private key ที่ช่วยให้ private key สามารถใช้สร้างลายเซ็นบนข้อความได้ ลายเซ็นเหล่านี้สามารถตรวจสอบความถูกต้องกับ public key ได้โดยไม่เปิดเผย private key
TIP: ในการใช้งานซอฟแวร์กระเป๋าเงินบิตคอยน์บสงอัน จะทำการเก็บ private key และ public key ถูกเก็บไว้ด้วยกันในรูปแบบคู่กุญแจเพื่อความสะดวก แต่อย่างไรก็ตาม public key สามารถคำนวณได้จาก private key ดังนั้นการเก็บเพียง private key เท่านั้นก็เป็นไปได้เช่นกัน
bitcoin wallet มักจะทำการรวบรวมคู่กุญแต่ละคู่ ซึ่งจะประกอบไปด้วย private key และ public key โดย private key จะเป็นตัวเลขที่ถูกสุ่มเลือกขึ้นมา และเราขะใช้เส้นโค้งวงรี ซึ่งเป็นฟังก์ชันการเข้ารหัสทางเดียว เพื่อสร้าง public key ขึ้นมา
ทำไมจึงใช้การเข้ารหัสแบบอสมมาตร
ทำไมการเข้ารหัสแบบอสมมาตรจึงถูกใช้บิตคอยน์? มันไม่ได้ถูกใช้เพื่อ "เข้ารหัส" (ทำให้เป็นความลับ) ธุรกรรม แต่คุณสมบัติที่มีประโยชน์ของการเข้ารหัสแบบอสมมาตรคือความสามารถในการสร้าง ลายเซ็นดิจิทัล private key สามารถนำไปใช้กับธุรกรรมเพื่อสร้างลายเซ็นเชิงตัวเลข ลายเซ็นนี้สามารถสร้างได้เฉพาะโดยผู้ที่มีความเกี่ยวข้องกับ private key เท่านั้น แต่อย่างไรก็ตาม ทุกคนที่สามารถเข้าถึง public key และธุรกรรมสามารถใช้สิ่งเหล่านี้เพื่อ ตรวจสอบ ลายเซ็นได้ คุณสมบัติที่มีประโยชน์นี้ของการเข้ารหัสแบบอสมมาตรทำให้ทุกคนสามารถตรวจสอบลายเซ็นทุกรายการในทุกธุรกรรมได้ ในขณะที่มั่นใจว่าเฉพาะเจ้าของ private key เท่านั้นที่สามารถสร้างลายเซ็นที่ถูกต้องได้
Private keys
private key เป็นเพียงตัวเลขที่ถูกสุ่มขึ้น และการควบคุม private key ก็เป็นรากฐานสำคัญที่ทำให้เจ้าชองกุญแจดอกนี้สามารถควบคุมบิตคอยน์ทั้งหมดที่มีความเกี่ยวข้องกับ public key ที่คู่กัน private key นั้นใช้ในการสร้างลายเซ็นดิจิทัลที่ใช้ในการเคลื่อนย้ายบิตคอยน์ เราจำเป็นต้องเก็บ private key ให้เป็นความลับตลอดเวลา เพราะการเปิดเผยมันให้กับบุคคลอื่นนั้นก็เปรียบเสมือนกับการนำอำนาจในการควบคุมบิตคอยน์ไปให้แก่เขา นอกจากนี้ private key ยังจำเป็นต้องได้รับการสำรองข้อมูลและป้องกันจากการสูญหายโดยไม่ตั้งใจ เพราะหากเราได้ทำมันสูญหายไป จะไม่สามารถกู้คืนได้ และบิตคอยน์เหล่านั้นจะถูกปกป้องโดยกุญแจที่หายไปนั้นตลอดกาลเช่นกัน
TIP: private key ของบิตคอยน์นั้นเป็นเพียงแค่ตัวเลข คุณสามารถสร้างมันได้โดยใช้เพียงเหรียญ ดินสอ และกระดาษ โดยการโยนเหรียญเพียง 256 ครั้งจะทำให้คุณได้เลขฐานสองที่สามารถใช้เป็น private key ของบิตคอยน์ จากนั้นคุณสามารถใช้มันในการคำนวณหา public key แต่อย่างไรก็ตาม โปรดระมัดระวังเกี่ยวกับการเลือใช้วิธีการสุ่มที่ไม่สมบูรณ์ เพราะนั่นอาจลดความปลอดภัยของ private key และบิตคอยน์ที่มัมปกป้องอยู่อย่างมีนัยสำคัญ
ขั้นตอนแรกและสำคัญที่สุดในการสร้างกุญแจคือการหาแหล่งที่มาของความสุ่มที่ปลอดภัย (ซึ่งเรียกว่า เอนโทรปี) การสร้างกุญแจของบิตคอยน์นั้นเกือบเหมือนกับ "เลือกตัวเลขระหว่าง 1 และ 2^256" ซึ่งวิธีที่แน่นอนที่คุณใช้ในการเลือกตัวเลขนั้นไม่สำคัญตราบใดที่มันไม่สามารถคาดเดาหรือทำซ้ำได้ โดยปกติแล้วซอฟต์แวร์ของบิตคอยน์มักจะใช้ตัวสร้างตัวเลขสุ่มที่มีความปลอดภัยทางการเข้ารหัสเพื่อสร้างเอนโทรปี 256 บิต
สิ่งที่สำคัญในเรื่องนี้คือ private key สามารถเป็นตัวเลขใดๆ ระหว่าง 0 และ n - 1 (รวมทั้งสองค่า) โดยที่ n เป็นค่าคงที่ (n = 1.1578 × 10^77 ซึ่งน้อยกว่า 2^256 เล็กน้อย) ซึ่งกำหนดอยู่ใน elliptic curve ที่ใช้ใน Bitcoin ในการสร้างกุญแจดังกล่าว เราสุ่มเลือกเลขขนาด 256 บิตและตรวจสอบว่ามันน้อยกว่า n ในแง่ของการเขียนโปรแกรม โดยปกติแล้วสิ่งนี้ทำได้โดยการป้อนสตริงของบิตสุ่มที่ใหญ่กว่า ซึ่งรวบรวมจากแหล่งที่มาของความสุ่มที่มีความปลอดภัยทางการเข้ารหัส เข้าไปในอัลกอริทึมแฮช SHA256 ซึ่งจะสร้างค่าขนาด 256 บิตที่สามารถตีความเป็นตัวเลขได้อย่างสะดวก หากผลลัพธ์น้อยกว่า n เราจะได้กุญแจส่วนตัวที่เหมาะสม มิฉะนั้น เราก็เพียงแค่ลองอีกครั้งด้วยตัวเลขสุ่มอื่น
คำเตือน: อย่าเขียนโค้ดของคุณเองเพื่อสร้างตัวเลขสุ่ม หรือใช้ตัวสร้างตัวเลขสุ่ม "แบบง่าย" ที่มีให้ในภาษาโปรแกรมของคุณ ใช้ตัวสร้างตัวเลขสุ่มเทียมที่มีความปลอดภัยทางการเข้ารหัส (CSPRNG) จากแหล่งที่มีเอนโทรปีเพียงพอ ศึกษาเอกสารของไลบรารีตัวสร้างตัวเลขสุ่มที่คุณเลือกเพื่อให้มั่นใจว่ามีความปลอดภัยทางการเข้ารหัส การใช้งาน CSPRNG ที่ถูกต้องมีความสำคัญอย่างยิ่งต่อความปลอดภัยของกุญแจ
ต่อไปนี้คือกุญแจส่วนตัว (k) ที่สร้างขึ้นแบบสุ่มซึ่งแสดงในรูปแบบเลขฐานสิบหก (256 บิตแสดงเป็น 64 หลักเลขฐานสิบหก โดยแต่ละหลักคือ 4 บิต):
1E99423A4ED27608A15A2616A2B0E9E52CED330AC530EDCC32C8FFC6A526AEDD
TIP: จำนวนที่เป็นไปได้ของ private key ทั้งหมดนั้นมีอยู่ 2^256 เป็นตัวเลขที่ใหญ่มากจนยากจะจินตนาการได้ มันมีค่าประมาณ 10^77 (เลข 1 ตามด้วยเลข 0 อีก 77 ตัว) ในระบบเลขฐานสิบ เพื่อให้เข้าใจง่ายขึ้น ลองเปรียบเทียบกับจักรวาลที่เรามองเห็นได้ซึ่งนักวิทยาศาสตร์ประมาณการว่ามีอะตอมทั้งหมดประมาณ 10^80 อะตอม นั่นหมายความว่าช่วงค่าของกุญแจส่วนตัว Bitcoin มีขนาดใกล้เคียงกับจำนวนอะตอมทั้งหมดในจักรวาลที่เรามองเห็นได้
การอธิบายเกี่ยวกับวิทยาการเข้ารหัสแบบเส้นโค้งวงรี (Elliptic Curve Cryptography)
วิทยาการเข้ารหัสแบบเส้นโค้งวงรี (ECC) เป็นประเภทหนึ่งของการเข้ารหัสแบบอสมมาตรหรือ public key ซึ่งอาศัยหลักการของปัญหาลอการิทึมแบบไม่ต่อเนื่อง โดยแสดงออกผ่านการบวกและการคูณบนจุดต่างๆ ของเส้นโค้งวงรี
บิตคอยน์ใช้เส้นโค้งวงรีเฉพาะและชุดค่าคงที่ทางคณิตศาสตร์ ตามที่กำหนดไว้ในมาตรฐานที่เรียกว่า secp256k1 ซึ่งกำหนดโดยสถาบันมาตรฐานและเทคโนโลยีแห่งชาติ (NIST) เส้นโค้ง secp256k1 ถูกกำหนดโดยฟังก์ชันต่อไปนี้ ซึ่งสร้างเส้นโค้งวงรี: y² = (x³ + 7) บนฟิลด์จำกัด (F_p) หรือ y² mod p = (x³ + 7) mod p
โดยที่ mod p (มอดูโลจำนวนเฉพาะ p) แสดงว่าเส้นโค้งนี้อยู่บนฟิลด์จำกัดของอันดับจำนวนเฉพาะ p ซึ่งเขียนได้เป็น F_p โดย p = 2^256 – 2^32 – 2^9 – 2^8 – 2^7 – 2^6 – 2^4 – 1 ซึ่งเป็นจำนวนเฉพาะที่มีค่ามหาศาล
บิตคอยน์ใช้เส้นโค้งวงรีที่ถูกนิยามบนฟิลด์จำกัดของอันดับจำนวนเฉพาะแทนที่จะอยู่บนจำนวนจริง ทำให้มันมีลักษณะเหมือนรูปแบบของจุดที่กระจัดกระจายในสองมิติ ซึ่งทำให้ยากต่อการจินตนาการภาพ อย่างไรก็ตาม คณิตศาสตร์ที่ใช้นั้นเหมือนกับเส้นโค้งวงรีบนจำนวนจริง
ตัวอย่างเช่น การเข้ารหัสลับด้วยเส้นโค้งวงรี: การแสดงภาพเส้นโค้งวงรีบน F(p) โดยที่ p=17 แสดงเส้นโค้งวงรีเดียวกันบนฟิลด์จำกัดของอันดับจำนวนเฉพาะ 17 ที่มีขนาดเล็กกว่ามาก ซึ่งแสดงรูปแบบของจุดบนตาราง
เส้นโค้งวงรี secp256k1 ที่ใช้ในบิตคอยน์สามารถนึกถึงได้ว่าเป็นรูปแบบของจุดที่ซับซ้อนมากกว่าบนตารางที่มีขนาดใหญ่มหาศาลจนยากจะเข้าใจได้
ตัวอย่างเช่น จุด P ที่มีพิกัด (x, y) ต่อไปนี้เป็นจุดที่อยู่บนเส้นโค้ง secp256k1:
P = (55066263022277343669578718895168534326250603453777594175500187360389116729240, 32670510020758816978083085130507043184471273380659243275938904335757337482424)
เราสามารถใช้ Python เพื่อยืนยันว่าจุดนี้อยู่บนเส้นโค้งวงรีได้ตามตัวอย่างนี้: ตัวอย่างที่ 1: การใช้ Python เพื่อยืนยันว่าจุดนี้อยู่บนเส้นโค้งวงรี ``` Python 3.10.6 (main, Nov 14 2022, 16:10:14) [GCC 11.3.0] on linux Type "help", "copyright", "credits" or "license" for more information.p = 115792089237316195423570985008687907853269984665640564039457584007908834671663 x = 55066263022277343669578718895168534326250603453777594175500187360389116729240 y = 32670510020758816978083085130507043184471273380659243275938904335757337482424 (x ** 3 + 7 - y**2) % p 0 ``` ผลลัพธ์เป็น 0 ซึ่งแสดงว่าจุดนี้อยู่บนเส้นโค้งวงรีจริง เพราะเมื่อแทนค่า x และ y ลงในสมการ y² = (x³ + 7) mod p แล้ว ทั้งสองด้านของสมการมีค่าเท่ากัน
ในคณิตศาสตร์ของเส้นโค้งวงรี มีจุดที่เรียกว่า "จุดที่อนันต์" (point at infinity) ซึ่งมีบทบาทคล้ายกับศูนย์ในการบวก บนคอมพิวเตอร์ บางครั้งจุดนี้แทนด้วย x = y = 0 (ซึ่งไม่เป็นไปตามสมการเส้นโค้งวงรี แต่เป็นกรณีพิเศษที่สามารถตรวจสอบได้ง่าย)
มีตัวดำเนินการ + ที่เรียกว่า "การบวก" ซึ่งมีคุณสมบัติคล้ายกับการบวกแบบดั้งเดิมของจำนวนจริงที่เด็กๆ เรียนในโรงเรียน เมื่อมีจุดสองจุด P1 และ P2 บนเส้นโค้งวงรี จะมีจุดที่สาม P3 = P1 + P2 ซึ่งอยู่บนเส้นโค้งวงรีเช่นกัน
ในเชิงเรขาคณิต จุดที่สาม P3 นี้คำนวณได้โดยการลากเส้นระหว่าง P1 และ P2 เส้นนี้จะตัดกับเส้นโค้งวงรีที่จุดเพิ่มเติมอีกหนึ่งจุดพอดี เรียกจุดนี้ว่า P3' = (x, y) จากนั้นให้สะท้อนกับแกน x เพื่อได้ P3 = (x, -y)
มีกรณีพิเศษบางกรณีที่อธิบายความจำเป็นของ "จุดที่อนันต์":
- ถ้า P1 และ P2 เป็นจุดเดียวกัน เส้น "ระหว่าง" P1 และ P2 ควรขยายเป็นเส้นสัมผัสกับเส้นโค้ง ณ จุด P1 นี้ เส้นสัมผัสนี้จะตัดกับเส้นโค้งที่จุดใหม่อีกหนึ่งจุดพอดี คุณสามารถใช้เทคนิคจากแคลคูลัสเพื่อหาความชันของเส้นสัมผัส เทคนิคเหล่านี้ใช้ได้อย่างน่าแปลกใจ แม้ว่าเราจะจำกัดความสนใจไว้ที่จุดบนเส้นโค้งที่มีพิกัดเป็นจำนวนเต็มเท่านั้น!
- ในบางกรณี (เช่น ถ้า P1 และ P2 มีค่า x เดียวกันแต่ค่า y ต่างกัน) เส้นสัมผัสจะตั้งฉากพอดี ซึ่งในกรณีนี้ P3 = "จุดที่อนันต์"
- ถ้า P1 เป็น "จุดที่อนันต์" แล้ว P1 + P2 = P2 ในทำนองเดียวกัน ถ้า P2 เป็นจุดที่อนันต์ แล้ว P1 + P2 = P1 นี่แสดงให้เห็นว่าจุดที่อนันต์มีบทบาทเป็นศูนย์
การบวกนี้มีคุณสมบัติเชิงสมาคม (associative) ซึ่งหมายความว่า (A + B) + C = A + (B + C) นั่นหมายความว่าเราสามารถเขียน A + B + C โดยไม่ต้องมีวงเล็บและไม่มีความกำกวม
เมื่อเรานิยามการบวกแล้ว เราสามารถนิยามการคูณในแบบมาตรฐานที่ต่อยอดจากการบวก สำหรับจุด P บนเส้นโค้งวงรี ถ้า k เป็นจำนวนเต็มบวก แล้ว kP = P + P + P + … + P (k ครั้ง) โปรดทราบว่า k บางครั้งถูกเรียกว่า "เลขชี้กำลัง"
Public Keys
ในระบบคริปโตกราฟีแบบเส้นโค้งวงรี (Elliptic Curve Cryptography) public key ถูกคำนวณจาก private key โดยใช้การคูณเส้นโค้งวงรี ซึ่งเป็นกระบวนการที่ไม่สามารถย้อนกลับได้:
K = k × G
โดยที่:
- k คือ private key
- G คือจุดคงที่ที่เรียกว่า จุดกำเนิด (generator point)
- K คือ public key
การดำเนินการย้อนกลับ ที่เรียกว่า "การหาลอการิทึมแบบไม่ต่อเนื่อง" (finding the discrete logarithm) - คือการคำนวณหา k เมื่อรู้ค่า K - เป็นสิ่งที่ยากมากเทียบเท่ากับการลองค่า k ทุกค่าที่เป็นไปได้ (วิธีการแบบ brute-force)
ความยากของการย้อนกลับนี้คือหลักการความปลอดภัยหลักของระบบ ECC ที่ใช้ในบิตคอยน์ ซึ่งทำให้สามารถเผยแพร่ public key ได้อย่างปลอดภัย โดยที่ไม่ต้องกังวลว่าจะมีใครสามารถคำนวณย้อนกลับเพื่อหา private key ได้
TIP:การคูณเส้นโค้งวงรีเป็นฟังก์ชันประเภทที่นักเข้ารหัสลับเรียกว่า “ trap door function ”:
- เป็นสิ่งที่ทำได้ง่ายในทิศทางหนึ่ง
- แต่เป็นไปไม่ได้ที่จะทำในทิศทางตรงกันข้าม
คนที่มี private key สามารถสร้าง public key ได้อย่างง่ายดาย และสามารถแบ่งปันกับโลกได้โดยรู้ว่าไม่มีใครสามารถย้อนกลับฟังก์ชันและคำนวณ private key จาก public key ได้ กลวิธีทางคณิตศาสตร์นี้กลายเป็นพื้นฐานสำหรับลายเซ็นดิจิทัลที่ปลอมแปลงไม่ได้และมีความปลอดภัย ซึ่งใช้พิสูจน์การควบคุมเงินบิตคอยน์
เริ่มต้นด้วยการใช้ private key ในรูปแบบของตัวเลขสุ่ม เราคูณมันด้วยจุดที่กำหนดไว้ล่วงหน้าบนเส้นโค้งที่เรียกว่า จุดกำเนิด (generator point) เพื่อสร้างจุดอื่นที่อยู่บนเส้นโค้งเดียวกัน ซึ่งคำตอบจะเป็น public key ที่สอดคล้องกัน จุดกำเนิดถูกกำหนดไว้เป็นส่วนหนึ่งของมาตรฐาน secp256k1 และเป็นค่าเดียวกันสำหรับกุญแจทั้งหมดในระบบบิตคอยน์
เนื่องจากจุดกำเนิด G เป็นค่าเดียวกันสำหรับผู้ใช้บิตคอยน์ทุกคน private key (k) ที่คูณกับ G จะได้ public key (K) เดียวกันเสมอ ความสัมพันธ์ระหว่าง k และ K เป็นแบบตายตัวแต่สามารถคำนวณได้ในทิศทางเดียวเท่านั้น คือจาก k ไปยัง K นี่คือเหตุผลที่ public key ของบิตคอยน์ (K) สามารถแบ่งปันกับทุกคนได้โดยไม่เปิดเผย private key (k) ของผู้ใช้
TIP: private key สามารถแปลงเป็น public key ได้ แต่ public key ไม่สามารถแปลงกลับเป็น private key ได้ เพราะคณิตศาสตร์ที่ใช้ทำงานได้เพียงทิศทางเดียวเท่านั้น
เมื่อนำการคูณเส้นโค้งวงรีมาใช้งาน เราจะนำ private key (k) ที่สร้างขึ้นก่อนหน้านี้มาคูณกับจุดกำเนิด G เพื่อหา public key (K):
K = 1E99423A4ED27608A15A2616A2B0E9E52CED330AC530EDCC32C8FFC6A526AEDD × G
public key (K) จะถูกกำหนดเป็นจุด K = (x, y) โดยที่:x = F028892BAD7ED57D2FB57BF33081D5CFCF6F9ED3D3D7F159C2E2FFF579DC341A y = 07CF33DA18BD734C600B96A72BBC4749D5141C90EC8AC328AE52DDFE2E505BDB
เพื่อจะให้เห็นภาพของการคูณจุดด้วยจำนวนเต็มมากขึ้น เราจะใช้เส้นโค้งวงรีที่ง่ายกว่าบนจำนวนจริง (โดยหลักการทางคณิตศาสตร์ยังคงเหมือนกัน) เป้าหมายของเราคือการหาผลคูณ kG ของจุดกำเนิด G ซึ่งเทียบเท่ากับการบวก G เข้ากับตัวเอง k ครั้งติดต่อกันในเส้นโค้งวงรี การบวกจุดเข้ากับตัวเองเทียบเท่ากับการลากเส้นสัมผัสที่จุดนั้นและหาว่าเส้นนั้นตัดกับเส้นโค้งอีกครั้งที่จุดใด จากนั้นจึงสะท้อนจุดนั้นบนแกน x
การเข้ารหัสลับด้วยเส้นโค้งวงรี: การแสดงภาพการคูณจุด G ด้วยจำนวนเต็ม k บนเส้นโค้งวงรี แสดงกระบวนการในการหา G, 2G, 4G เป็นการดำเนินการทางเรขาคณิตบนเส้นโค้งได้ดังนี้
TIP: ในซอฟแวร์ของบิตคอยน์ส่วนใหญ่ใช้ไลบรารีเข้ารหัสลับ libsecp256k1 เพื่อทำการคำนวณทางคณิตศาสตร์เส้นโค้งวงรี
Output and Input Scripts
แม้ว่าภาพประกอบจาก Bitcoin whitepaper ที่แสดงเรื่อง "Transaction chain" จะแสดงให้เห็นว่ามีการใช้ public key และ digital signature โดยตรง แต่ในความเป็นจริงบิตคอยน์เวอร์ชันแรกนั้นมีการส่งการชำระเงินไปยังฟิลด์ที่เรียกว่า output script และมีการใช้จ่ายบิตคอยน์เหล่านั้นโดยได้รับอนุญาตจากฟิลด์ที่เรียกว่า input script ฟิลด์เหล่านี้อนุญาตให้มีการดำเนินการเพิ่มเติมนอกเหนือจาก (หรือแทนที่) การตรวจสอบว่าลายเซ็นสอดคล้องกับ public key หรือไม่ ตัวอย่างเช่น output script สามารถมี public key สองดอกและต้องการลายเซ็นสองลายเซ็นที่สอดคล้องกันในฟิลด์ input script ที่ใช้จ่าย
ในภายหลัง ในหัวข้อ [tx_script] เราจะได้เรียนรู้เกี่ยวกับสคริปต์อย่างละเอียด สำหรับตอนนี้ สิ่งที่เราต้องเข้าใจคือ บิตคอยน์จะถูกรับเข้า output script ที่ทำหน้าที่เหมือน public key และการใช้จ่ายบิตคอยน์จะได้รับอนุญาตโดย input script ที่ทำหน้าที่เหมือนลายเซ็น
IP Addresses: The Original Address for Bitcoin (P2PK)
เราได้เห็นแล้วว่าอลิซสามารถจ่ายเงินให้บ็อบโดยการมอบบิตคอยน์บางส่วนของเธอให้กับกุญแจสาธารณะของบ็อบ แต่อลิซจะได้กุญแจสาธารณะของบ็อบมาได้อย่างไร? บ็อบอาจจะให้สำเนากุญแจแก่เธอ แต่ลองดูกุญแจสาธารณะที่เราใช้งานในตัวอย่างที่ผ่านมาอีกครั้ง:
x = F028892BAD7ED57D2FB57BF33081D5CFCF6F9ED3D3D7F159C2E2FFF579DC341A y = 07CF33DA18BD734C600B96A72BBC4749D5141C90EC8AC328AE52DDFE2E505BDB
TIP จากหลาม: :สังเกตได้ว่า public key มีความยาวมาก ลองจินตนาการว่าบ็อบพยายามอ่านกุญแจนี้ให้อลิซฟังทางโทรศัพท์ คงจะยากมากที่จะอ่านและบันทึกโดยไม่มีข้อผิดพลาด
แทนที่จะป้อนกุญแจสาธารณะโดยตรง เวอร์ชันแรกของซอฟต์แวร์บิตคอยน์อนุญาตให้ผู้จ่ายเงินป้อนที่อยู่ IP ของผู้รับได้ ตามที่แสดงในหน้าจอการส่งเงินรุ่นแรกของบิตคอยน์ผ่าน The Internet Archive
คุณสมบัตินี้ถูกลบออกในภายหลัง เนื่องจากมีปัญหามากมายในการใช้ที่อยู่ IP แต่คำอธิบายสั้นๆ จะช่วยให้เราเข้าใจได้ดีขึ้นว่าทำไมคุณสมบัติบางอย่างอาจถูกเพิ่มเข้าไปในโปรโตคอลบิตคอยน์
เมื่ออลิซป้อนที่อยู่ IP ของบ็อบในบิตคอยน์เวอร์ชัน 0.1 Full node ของเธอจะทำการเชื่อมต่อกับ full node ของเขาและได้รับ public key ใหม่จากกระเป๋าสตางค์ของบ็อบที่โหนดของเขาไม่เคยให้กับใครมาก่อน การที่เป็น public key ใหม่นี้มีความสำคัญเพื่อให้แน่ใจว่าธุรกรรมต่าง ๆ ที่จ่ายให้บ็อบจะไม่สามารถถูกเชื่อมโยงเข้าด้วยกันโดยคนที่กำลังดูบล็อกเชนและสังเกตเห็นว่าธุรกรรมทั้งหมดจ่ายไปยัง public key เดียวกัน
เมื่อใช้ public key จากโหนดของอลิซซึ่งได้รับมาจากโหนดของบ็อบ กระเป๋าสตางค์ของอลิซจะสร้างเอาต์พุตธุรกรรมที่จ่ายให้กับสคริปต์เอาต์พุตดังนี้
<Bob's public key> OP_CHECKSIG
ต่อมาบ็อบจะสามารถใช้จ่ายเอาต์พุตนั้นด้วยสคริปต์อินพุตที่ประกอบด้วยลายเซ็นของเขาเท่านั้น:<Bob's signature>
เพื่อให้เข้าใจว่าสคริปต์อินพุตและเอาต์พุตกำลังทำอะไร คุณสามารถรวมพวกมันเข้าด้วยกัน (สคริปต์อินพุตก่อน) แล้วสังเกตว่าข้อมูลแต่ละชิ้น (แสดงในเครื่องหมาย < >) จะถูกวางไว้ที่ด้านบนสุดของรายการที่เรียกว่าสแตก (stack) เมื่อพบรหัสคำสั่ง (opcode) มันจะใช้รายการจากสแตก โดยเริ่มจากรายการบนสุด มาดูว่ามันทำงานอย่างไรโดยเริ่มจากสคริปต์ที่รวมกัน:<Bob's signature> <Bob's public key> OP_CHECKSIG
สำหรับสคริปต์นี้ ลายเซ็นของบ็อบจะถูกนำไปไว้บนสแตก จากนั้น public key ของบ็อบจะถูกวางไว้ด้านบนของลายเซ็น และบนสุดจะเป็นคำสั่ง OP_CHECKSIG ที่จะใช้องค์ประกอบสองอย่าง เริ่มจาก public key ตามด้วยลายเซ็น โดยลบพวกมันออกจากสแตก มันจะตรวจสอบว่าลายเซ็นตรงกับ public key และยืนยันฟิลด์ต่าง ๆ ในธุรกรรม ถ้าลายเซ็นถูกต้อง OP_CHECKSIG จะแทนที่ตัวเองบนสแตกด้วยค่า 1 ถ้าลายเซ็นไม่ถูกต้อง มันจะแทนที่ตัวเองด้วย 0 ถ้ามีรายการที่ไม่ใช่ศูนย์อยู่บนสุดของสแตกเมื่อสิ้นสุดการประเมิน สคริปต์ก็จะผ่าน ถ้าสคริปต์ทั้งหมดในธุรกรรมผ่าน และรายละเอียดอื่น ๆ ทั้งหมดเกี่ยวกับธุรกรรมนั้นต้องถูกต้องจึงจะถือว่าธุรกรรมนั้นถูกต้อง
โดยสรุป สคริปต์ข้างต้นใช้ public key และลายเซ็นเดียวกันกับที่อธิบายใน whitepaper แต่เพิ่มความซับซ้อนของฟิลด์สคริปต์สองฟิลด์และรหัสคำสั่งหนึ่งตัว ซึ่งเราจะเริ่มเห็นประโยชน์เมื่อเรามองที่ส่วนต่อไป
TIP:จากหลาม agian: เอาต์พุตประเภทนี้เป็นที่รู้จักในปัจจุบันว่า P2PK ซึ่งมันไม่เคยถูกใช้อย่างแพร่หลายสำหรับการชำระเงิน และไม่มีโปรแกรมที่ใช้กันอย่างแพร่หลายที่รองรับการชำระเงินผ่านที่อยู่ IP เป็นเวลาเกือบทศวรรษแล้ว
Legacy addresses for P2PKH
แน่นอนว่าการป้อนที่อยู่ IP ของคนที่คุณต้องการจ่ายเงินให้นั้นมีข้อดีหลายประการ แต่ก็มีข้อเสียหลายประการเช่นกัน หนึ่งในข้อเสียที่สำคัญคือผู้รับจำเป็นต้องให้กระเป๋าสตางค์ของพวกเขาออนไลน์ที่ที่อยู่ IP ของพวกเขา และต้องสามารถเข้าถึงได้จากโลกภายนอก
ซึ่งสำหรับคนจำนวนมากนั่นไม่ใช่ตัวเลือกที่เป็นไปได้เพราะหากพวกเขา:
- ปิดคอมพิวเตอร์ในเวลากลางคืน
- แล็ปท็อปของพวกเขาเข้าสู่โหมดสลีป
- อยู่หลังไฟร์วอลล์
- หรือกำลังใช้การแปลงที่อยู่เครือข่าย (NAT)
ปัญหานี้นำเรากลับมาสู่ความท้าทายเดิมที่ผู้รับเงินอย่างบ็อบต้องให้ public key ที่มีความยาวมากแก่ผู้จ่ายเงินอย่างอลิซ public key ของบิตคอยน์ที่สั้นที่สุดที่นักพัฒนาบิตคอยน์รุ่นแรกรู้จักมีขนาด 65 ไบต์ เทียบเท่ากับ 130 ตัวอักษรเมื่อเขียนในรูปแบบเลขฐานสิบหก (เฮกซาเดซิมอล) แต่อย่างไรก็ตาม บิตคอยน์มีโครงสร้างข้อมูลหลายอย่างที่มีขนาดใหญ่กว่า 65 ไบต์มาก ซึ่งจำเป็นต้องถูกอ้างอิงอย่างปลอดภัยในส่วนอื่น ๆ ของบิตคอยน์โดยใช้ข้อมูลขนาดเล็กที่สุดเท่าที่จะปลอดภัยได้
โดยบิตคอยน์แก้ปัญหานี้ด้วย ฟังก์ชันแฮช (hash function) ซึ่งเป็นฟังก์ชันที่รับข้อมูลที่อาจมีขนาดใหญ่ นำมาแฮช และให้ผลลัพธ์เป็นข้อมูลขนาดคงที่ ฟังก์ชันแฮชจะผลิตผลลัพธ์เดียวกันเสมอเมื่อได้รับข้อมูลนำเข้าแบบเดียวกัน และฟังก์ชันที่ปลอดภัยจะทำให้เป็นไปไม่ได้ในทางปฏิบัติสำหรับผู้ที่ต้องการเลือกข้อมูลนำเข้าอื่นที่ให้ผลลัพธ์เหมือนกันได้ นั่นทำให้ผลลัพธ์เป็น คำมั่นสัญญา (commitment) ต่อข้อมูลนำเข้า เป็นสัญญาว่าในทางปฏิบัติ มีเพียงข้อมูลนำเข้า x เท่านั้นที่จะให้ผลลัพธ์ X
สมมติว่าผมต้องการถามคำถามคุณและให้คำตอบของผมในรูปแบบที่คุณไม่สามารถอ่านได้ทันที สมมติว่าคำถามคือ "ในปีไหนที่ซาโตชิ นาคาโมโตะเริ่มทำงานบนบิทคอยน์?" ผมจะให้การยืนยันคำตอบของผมในรูปแบบของผลลัพธ์จากฟังก์ชันแฮช SHA256 ซึ่งเป็นฟังก์ชันที่ใช้บ่อยที่สุดในบิทคอยน์:
94d7a772612c8f2f2ec609d41f5bd3d04a5aa1dfe3582f04af517d396a302e4e
ต่อมา หลังจากคุณบอกคำตอบที่คุณเดาสำหรับคำถามนั้น ผมสามารถเปิดเผยคำตอบของผมและพิสูจน์ให้คุณเห็นว่าคำตอบของผม เมื่อใช้เป็นข้อมูลสำหรับฟังก์ชันแฮช จะให้ผลลัพธ์เดียวกันกับที่ผมให้คุณก่อนหน้านี้$ echo "2007. He said about a year and a half before Oct 2008" | sha256sum 94d7a772612c8f2f2ec609d41f5bd3d04a5aa1dfe3582f04af517d396a302e4e
ทีนี้ให้สมมติว่าเราถามบ็อบว่า " public key ของคุณคืออะไร?" บ็อบสามารถใช้ฟังก์ชันแฮชเพื่อให้การยืนยันที่ปลอดภัยทางการเข้ารหัสต่อ public key ของเขา หากเขาเปิดเผยกุญแจในภายหลัง และเราตรวจสอบว่ามันให้ผลการยืนยันเดียวกันกับที่เขาให้เราก่อนหน้านี้ เราสามารถมั่นใจได้ว่ามันเป็นกุญแจเดียวกันที่ใช้สร้างการยืนยันก่อนหน้านี้ฟังก์ชันแฮช SHA256 ถือว่าปลอดภัยมากและให้ผลลัพธ์ 256 บิต (32 ไบต์) น้อยกว่าครึ่งหนึ่งของขนาด public key ของบิทคอยน์ดั้งเดิม แต่อย่างไรก็ตาม มีฟังก์ชันแฮชอื่นๆ ที่ปลอดภัยน้อยกว่าเล็กน้อยที่ให้ผลลัพธ์ขนาดเล็กกว่า เช่น ฟังก์ชันแฮช RIPEMD-160 ซึ่งให้ผลลัพธ์ 160 บิต (20 ไบต์) ด้วยเหตุผลที่ซาโตชิ นาคาโมโตะไม่เคยระบุ เวอร์ชันดั้งเดิมของบิทคอยน์สร้างการยืนยันต่อ public key โดยการแฮชกุญแจด้วย SHA256 ก่อน แล้วแฮชผลลัพธ์นั้นด้วย RIPEMD-160 ซึ่งให้การยืนยันขนาด 20 ไบต์ต่อ public key
เราสามารถดูสิ่งนี้ตามอัลกอริทึม เริ่มจากกุญแจสาธารณะ K เราคำนวณแฮช SHA256 และคำนวณแฮช RIPEMD-160 ของผลลัพธ์ ซึ่งให้ตัวเลข 160 บิต (20 ไบต์): A = RIPEMD160(SHA256(K))
ทีนี้เราคงเข้าใจวิธีสร้างการยืนยันต่อ public key แล้ว ต่อไปเราจะมาดูวิธีการใช้งานโดยพิจารณาสคริปต์เอาต์พุตต่อไปนี้:
OP_DUP OP_HASH160 <Bob's commitment> OP_EQUAL OP_CHECKSIG
และสคริปต์อินพุตต่อไปนี้:<Bob's signature> <Bob's public key>
และเมื่อเรารวมมันเข้าด้วยกันเราจะได้ผลลัพธ์ดังนี้:<Bob's signature> <Bob's public key> OP_DUP OP_HASH160 <Bob's commitment> OP_EQUAL OP_CHECKSIG
เหมือนที่เราทำใน IP Addresses: The Original Address for Bitcoin (P2PK) เราเริ่มวางรายการลงในสแต็ก ลายเซ็นของบ็อบถูกวางก่อน จากนั้น public key ของเขาถูกวางไว้ด้านบน จากนั้นดำเนินการ OP_DUP เพื่อทำสำเนารายการบนสุด ดังนั้นรายการบนสุดและรายการที่สองจากบนในสแต็กตอนนี้เป็น public key ของบ็อบทั้งคู่ การดำเนินการ OP_HASH160 ใช้ (ลบ) public key บนสุดและแทนที่ด้วยผลลัพธ์ของการแฮชด้วย RIPEMD160(SHA256(K)) ดังนั้นตอนนี้บนสุดของสแต็กคือแฮชของ public key ของบ็อบ ต่อไป commitment ถูกเพิ่มไว้บนสุดของสแต็ก การดำเนินการ OP_EQUALVERIFY ใช้รายการสองรายการบนสุดและตรวจสอบว่าพวกมันเท่ากัน ซึ่งควรเป็นเช่นนั้นหาก public key ที่บ็อบให้ในสคริปต์อินพุตเป็น public key เดียวกันกับที่ใช้สร้างการยืนยันในสคริปต์เอาต์พุตที่อลิซจ่าย หาก OP_EQUALVERIFY ล้มเหลว ทั้งสคริปต์จะล้มเหลว สุดท้าย เราเหลือสแต็กที่มีเพียงลายเซ็นของบ็อบและ public key ของเขา รหัสปฏิบัติการ OP_CHECKSIG ตรวจสอบว่าพวกมันสอดคล้องกัน
TIP: จากหลาม ถ้าอ่านตรงนี้และงง ๆ ผมไปทำรูปมาให้ดูง่ายขึ้นครับ
แม้กระบวนการของการ pay-to-publickey-hash(P2PKH) อาจดูซับซ้อน แต่มันทำให้การที่อลิซจ่ายเงินให้บ็อบมีเพียงการยืนยันเพียง 20 ไบต์ต่อ public key ของเขาแทนที่จะเป็นตัวกุญแจเอง ซึ่งจะมีขนาด 65 ไบต์ในเวอร์ชันดั้งเดิมของบิทคอยน์ นั่นเป็นข้อมูลที่น้อยกว่ามากที่บ็อบต้องสื่อสารกับอลิซ
แต่อย่างไรก็ตาม เรายังไม่ได้พูดถึงวิธีที่บ็อบรับ 20 ไบต์เหล่านั้นจากกระเป๋าเงินบิทคอยน์ของเขาไปยังกระเป๋าเงินของอลิซ มีการเข้ารหัสค่าไบต์ที่ใช้กันอย่างแพร่หลาย เช่น เลขฐานสิบหก แต่ข้อผิดพลาดใด ๆ ในการคัดลอกการยืนยันจะทำให้บิทคอยน์ถูกส่งไปยังเอาต์พุตที่ไม่สามารถใช้จ่ายได้ ทำให้พวกมันสูญหายไปตลอดกาล โดยในส่วนถัดไป เราจะดูที่การเข้ารหัสแบบกะทัดรัดและการตรวจสอบความถูกต้อง
Base58check Encoding
ระบบคอมพิวเตอร์มีวิธีเขียนตัวเลขยาวๆ ให้สั้นลงโดยใช้ทั้งตัวเลขและตัวอักษรผสมกัน เพื่อใช้พื้นที่น้อยลงอย่างเช่น
- ระบบเลขฐานสิบ (ปกติที่เราใช้) - ใช้เลข 0-9 เท่านั้น
- ระบบเลขฐานสิบหก - ใช้เลข 0-9 และตัวอักษร A-F ตัวอย่าง: เลข 255 ในระบบปกติ เขียนเป็น FF ในระบบเลขฐานสิบหก (สั้นกว่า)
- ระบบเลขฐานหกสิบสี่ (Base64) - ใช้สัญลักษณ์ถึง 64 ตัว: ตัวอักษรเล็ก (a-z) 26 ตัว, ตัวอักษรใหญ่ (A-Z) 26 ตัว, ตัวเลข (0-9) 10 ตัว, สัญลักษณ์พิเศษอีก 2 ตัว ("+" และ "/")
โดยระบบ Base64 นี้ช่วยให้เราส่งไฟล์คอมพิวเตอร์ผ่านข้อความธรรมดาได้ เช่น การส่งรูปภาพผ่านอีเมล โดยใช้พื้นที่น้อยกว่าการเขียนเป็นเลขฐานสิบแบบปกติมาก
การเข้ารหัสแบบ Base58 คล้ายกับ Base64 โดยใช้ตัวอักษรพิมพ์ใหญ่ พิมพ์เล็ก และตัวเลข แต่ได้ตัดตัวอักษรบางตัวที่มักถูกเข้าใจผิดว่าเป็นตัวอื่นและอาจดูเหมือนกันเมื่อแสดงในฟอนต์บางประเภทออกไป
Base58 คือ Base64 ที่ตัดตัวอักษรต่อไปนี้ออก:
- เลข 0 (ศูนย์)
- ตัวอักษร O (ตัว O พิมพ์ใหญ่)
- ตัวอักษร l (ตัว L พิมพ์เล็ก)
- ตัวอักษร I (ตัว I พิมพ์ใหญ่)
- และสัญลักษณ์ "+" และ "/"
หรือพูดให้ง่ายขึ้น Base58 คือกลุ่มตัวอักษรพิมพ์เล็ก พิมพ์ใหญ่ และตัวเลข แต่ไม่มีตัวอักษรทั้งสี่ตัว (0, O, l, I) ที่กล่าวถึงข้างต้น ตัวอักษรทั้งหมดที่ใช้ใน Base58 จะแสดงให้เห็นในตัวอักษร Base58 ของบิทคอยน์
Example 2. Bitcoin’s base58 alphabet
123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz
การเพิ่มความปลอดภัยพิเศษเพื่อป้องกันการพิมพ์ผิดหรือข้อผิดพลาดในการคัดลอก base58check ได้รวม รหัสตรวจสอบ (checksum) ที่เข้ารหัสในตัวอักษร base58 เข้าไปด้วย รหัสตรวจสอบนี้คือข้อมูลเพิ่มเติมอีก 4 ไบต์ที่เพิ่มเข้าไปที่ท้ายของข้อมูลที่กำลังถูกเข้ารหัสรหัสตรวจสอบนี้ได้มาจากการแฮชข้อมูลที่ถูกเข้ารหัส และจึงสามารถใช้เพื่อตรวจจับข้อผิดพลาดจากการคัดลอกและการพิมพ์ได้ เมื่อโปรแกรมได้รับรหัส base58check ซอฟต์แวร์ถอดรหัสจะคำนวณรหัสตรวจสอบของข้อมูลและเปรียบเทียบกับรหัสตรวจสอบที่รวมอยู่ในรหัสนั้น
หากทั้งสองไม่ตรงกัน แสดงว่ามีข้อผิดพลาดเกิดขึ้น และข้อมูล base58check นั้นไม่ถูกต้อง กระบวนการนี้ช่วยป้องกันไม่ให้ address บิทคอยน์ที่พิมพ์ผิดถูกยอมรับโดยซอฟต์แวร์กระเป๋าเงินว่าเป็น address ที่ถูกต้อง ซึ่งเป็นข้อผิดพลาดที่อาจส่งผลให้สูญเสียเงินได้
การแปลงข้อมูล (ตัวเลข) เป็นรูปแบบ base58check มีขั้นตอนดังนี้:
- เราเริ่มโดยการเพิ่ม prefix เข้าไปในข้อมูล เรียกว่า "version byte" ซึ่งช่วยให้ระบุประเภทของข้อมูลที่ถูกเข้ารหัสได้ง่าย ตัวอย่างเช่น: prefix ศูนย์ (0x00 ในระบบเลขฐานสิบหก) แสดงว่าข้อมูลควรถูกใช้เป็นการยืนยัน (hash) ในสคริปต์เอาต์พุต legacy P2PKH
- จากนั้น เราคำนวณ "double-SHA" checksum ซึ่งหมายถึงการใช้อัลกอริทึมแฮช SHA256 สองครั้งกับผลลัพธ์ก่อนหน้า (prefix ต่อกับข้อมูล):
checksum = SHA256(SHA256(prefix||data))
- จากแฮช 32 ไบต์ที่ได้ (การแฮชซ้อนแฮช) เราเลือกเฉพาะ 4 ไบต์แรก ไบต์ทั้งสี่นี้ทำหน้าที่เป็นรหัสตรวจสอบข้อผิดพลาดหรือ checksum
- นำ checksum นี้ไปต่อที่ท้ายข้อมูล
การเข้ารหัสแบบ base58check คือรูปแบบการเข้ารหัสที่ใช้ base58 พร้อมกับการระบุเวอร์ชันและการตรวจสอบความถูกต้อง เพื่อการเข้ารหัสข้อมูลบิทคอยน์ โดยคุณสามารถดูภาพประกอบด้านล่างเพื่อความเข้าใจเพิ่มเติม
ในบิตคอยน์นั้น นอกจากจะใช้ base58check ในการยืนยัน public key แล้ว ก็ยังมีการใช้ในข้อมูลอื่น ๆ ด้วย เพื่อทำให้ข้อมูลนั้นกะทัดรัด อ่านง่าย และตรวจจับข้อผิดพลาดได้ง่ายด้วยรหัสนำหน้า (version prefix) ในการเข้ารหัสแบบ base58check ถูกใช้เพื่อสร้างรูปแบบที่แยกแยะได้ง่าย ซึ่งเมื่อเข้ารหัสด้วย base58 โดยจะมีตัวอักษรเฉพาะที่จุดเริ่มต้นของข้อมูลที่เข้ารหัส base58check ตัวอักษรเหล่านี้ช่วยให้เราระบุประเภทของข้อมูลที่ถูกเข้ารหัสและวิธีการใช้งานได้ง่าย นี่คือสิ่งที่แยกความแตกต่าง ตัวอย่างเช่น ระหว่าง address บิทคอยน์ที่เข้ารหัส base58check ซึ่งขึ้นต้นด้วยเลข 1 กับรูปแบบการนำเข้า private key (WIF - Wallet Import Format) ที่เข้ารหัส base58check ซึ่งขึ้นต้นด้วยเลข 5 ตัวอย่างของ version prefix สามารถดูได้ตามตารางด้านล่างนี้
ภาพต่อไปนี้จะทำให้คุณเห็นภาพของกระบวนการแปลง public key ให้เป็น bitcoin address
Compressed Public Keys
ในยุคแรก ๆ ของบิตคอยน์นั้น มีเพียงการสร้าง public key แบบ 65 Bytes เท่านั้น แต่ในเวลาต่อมา เหล่านักพัฒนาในยุคหลังได้พบวิธีการสร้าง public key แบบใหม่ที่มีเพียง 33 Bytes และสามารถทำงานร่วมกันกับโหนดทั้งหมดในขณะนั้นได้ จีงไม่จะเป็นต้องเปลี่ยนแปลงกฎหรือโครงสร้างภายในโปรโตคอลของบิตคอยน์ โดย poublic key แบบใหม่ที่มีขนาด 33 Bytes นี้เรียกว่า compressed public key (public key ที่ถูกบีบอัด) และมีการเรียก public key ที่มีขนาด 65 Bytes ว่า uncompressed public key (public key ที่ไม่ถูกบีบอัด) ซึ่งประโยชน์ของ public key ที่เล็กลงนั้น นอกจากจะช่วยให้การส่ง public key ให้ผู้อื่นทำได้ง่ายขึ้นแล้ว ยังช่วยให้ธุรกรรมมีขนาดเล็กลง และช่วยให้สามารถทำการชำระเงินได้มากขึ้นในบล็อกเดียวกัน
อย่างที่เราได้เรียนรู้จากเนื้อหาในส่วนของ public key เราได้ทราบว่า public key คือจุด (x, y) บนเส้นโค้งวงรี เนื่องจากเส้นโค้งแสดงฟังก์ชันทางคณิตศาสตร์ จุดบนเส้นโค้งจึงเป็นคำตอบของสมการ ดังนั้นหากเรารู้พิกัด x เราก็สามารถคำนวณพิกัด y ได้โดยแก้สมการ y² mod p = (x³ + 7) mod p นั่นหมายความว่าเราสามารถเก็บเพียงพิกัด x ของ public key โดยละพิกัด y ไว้ ซึ่งช่วยลดขนาดของกุญแจและพื้นที่ที่ต้องใช้เก็บข้อมูลลง 256 บิต การลดขนาดลงเกือบ 50% ในทุกธุรกรรมรวมกันแล้วช่วยประหยัดข้อมูลได้มากมายในระยะยาว!
นี่คือ public key ที่ได้ยกเป็นตัวอย่างไว้ก่อนหน้า
x = F028892BAD7ED57D2FB57BF33081D5CFCF6F9ED3D3D7F159C2E2FFF579DC341A y = 07CF33DA18BD734C600B96A72BBC4749D5141C90EC8AC328AE52DDFE2E505BDB
และนี่คือ public key ที่มีตัวนำหน้า 04 ตามด้วยพิกัด x และ y ในรูปแบบ 04 x y:
K = 04F028892BAD7ED57D2FB57BF33081D5CFCF6F9ED3D3D7F159C2E2FFF579DC341A07CF33DA18BD734C600B96A72BBC4749D5141C90EC8AC328AE52DDFE2E505BDB
uncompressed public key นั้นจะมีตัวนำหน้าเป็น 04 แต่ compressed public key จะมีตัวนำหน้าเป็น 02 หรือ 03 โดยเหตุผลนั้นมาจากสมการ y² mod p = (x³ + 7) mod p เนื่องจากด้านซ้ายของสมการคือ y² คำตอบสำหรับ y จึงเป็นรากที่สอง ซึ่งอาจมีค่าเป็นบวกหรือลบก็ได้ หากมองเชิงภาพ นี่หมายความว่าพิกัด y ที่ได้อาจอยู่เหนือหรือใต้แกน x เราต้องไม่ลืมว่าเส้นโค้งมีความสมมาตร ซึ่งหมายความว่ามันจะสะท้อนเหมือนกระจกโดยแกน x ดังนั้น แม้เราจะละพิกัด y ได้ แต่เราต้องเก็บ เครื่องหมาย ของ y (บวกหรือลบ) หรืออีกนัยหนึ่งคือเราต้องจำว่ามันอยู่เหนือหรือใต้แกน x เพราะแต่ละตำแหน่งแทนจุดที่แตกต่างกันและเป็น public key ที่แตกต่างกัน
เมื่อคำนวณเส้นโค้งวงรีในระบบเลขฐานสองบนสนามจำกัดของเลขจำนวนเฉพาะ p พิกัด y จะเป็นเลขคู่หรือเลขคี่ ซึ่งสอดคล้องกับเครื่องหมายบวก/ลบตามที่อธิบายก่อนหน้านี้ ดังนั้น เพื่อแยกความแตกต่างระหว่างค่าที่เป็นไปได้สองค่าของ y เราจึงเก็บ compressed public key ด้วยตัวนำหน้า 02 ถ้า y เป็นเลขคู่ และ 03 ถ้า y เป็นเลขคี่ ซึ่งช่วยให้ซอฟต์แวร์สามารถอนุมานพิกัด y จากพิกัด x และคลายการบีบอัดของ public key ไปยังพิกัดเต็มของจุดได้อย่างถูกต้อง ดังภาพประกอบต่อไปนี้
นี่คือ public key เดียวกันกับที่ยกตัวอย่างไว้ข้างต้นซึ่งแสดงให้เห็นในรูป compressed public key ที่เก็บใน 264 บิต (66 ตัวอักษรเลขฐานสิบหก) โดยมีตัวนำหน้า 03 ซึ่งบ่งชี้ว่าพิกัด y เป็นเลขคี่:
K = 03F028892BAD7ED57D2FB57BF33081D5CFCF6F9ED3D3D7F159C2E2FFF579DC341A
compressed public key สอดคล้องกับ private key เดียวกันกับ uncompressed public key หมายความว่ามันถูกสร้างจาก private key เดียวกัน แต่อย่างไรก็ตาม มันก็มีส่วนที่แตกต่างจาก uncompressed public key นั้นคือ หากเราแปลง compressed public key เป็น commitment โดยใช้ฟังก์ชัน HASH160 (RIPEMD160(SHA256(K))) มันจะสร้าง commitment ที่แตกต่างจาก uncompressed public key และจะนำไปสู่ bitcoin address ที่แตกต่างกันในที่สุด สิ่งนี้อาจทำให้สับสนเพราะหมายความว่า private key เดียวสามารถสร้าง public key ในสองรูปแบบที่แตกต่างกัน (แบบบีบอัดและแบบไม่บีบอัด) ซึ่งสร้าง bitcoin address ที่แตกต่างกันcompressed public key เป็นค่าเริ่มต้นในซอฟต์แวร์บิตคอยน์เกือบทั้งหมดในปัจจุบัน และถูกกำหนดให้ใช้กับคุณสมบัติใหม่บางอย่างที่เพิ่มในการอัปเกรดโปรโตคอลในภายหลัง
อย่างไรก็ตาม ซอฟต์แวร์บางตัวยังคงต้องรองรับ uncompressed public key เช่น แอปพลิเคชันกระเป๋าเงินที่นำเข้า private key จากกระเป๋าเงินเก่า เมื่อกระเป๋าเงินใหม่สแกนบล็อกเชนสำหรับผลลัพธ์และอินพุต P2PKH เก่า มันจำเป็นต้องรู้ว่าควรสแกนกุญแจขนาด 65 ไบต์ (และ commitment ของกุญแจเหล่านั้น) หรือกุญแจขนาด 33 ไบต์ (และ commitment ของกุญแจเหล่านั้น) หากไม่สแกนหาประเภทที่ถูกต้อง อาจทำให้ผู้ใช้ไม่สามารถใช้ยอดคงเหลือทั้งหมดได้ เพื่อแก้ไขปัญหานี้ เมื่อส่งออก private key จากกระเป๋าเงิน WIF ที่ใช้แสดง private key ในกระเป๋าเงินบิตคอยน์รุ่นใหม่จะถูกนำไปใช้แตกต่างกันเล็กน้อยเพื่อบ่งชี้ว่า private key เหล่านี้ถูกใช้ในการสร้าง compressed public key
Legacy: Pay to Script Hash (P2SH)
ตามที่เราได้เห็นในส่วนก่อนหน้านี้ ผู้รับบิตคอยน์ สามารถกำหนดให้การชำระเงินที่ส่งมาให้เขานั้นมีเงื่อนไขบางอย่างในสคริปต์เอาต์พุตได้โดยจะต้องปฏิบัติตามเงื่อนไขเหล่านั้นโดยใช้สคริปต์อินพุตเมื่อเขาใช้จ่ายบิตคอยน์เหล่านั้น ในส่วน IP Addresses: The Original Address for Bitcoin (P2PK) เงื่อนไขก็คือสคริปต์อินพุตต้องให้ลายเซ็นที่เหมาะสม ในส่วน Legacy Addresses for P2PKH นั้นจำเป็นต้องมี public key ที่เหมาะสมด้วย
ส่วนสำหรับผู้ส่งก็จะวางเงื่อนไขที่ผู้รับต้องการในสคริปต์เอาต์พุตที่ใช้จ่ายให้กับผู้รับ โดยผู้รับจะต้องสื่อสารเงื่อนไขเหล่านั้นให้ผู้ส่งทราบ ซึ่งคล้ายกับปัญหาที่บ๊อบต้องสื่อสาร public key ของเขาให้อลิซทราบ และเช่นเดียวกับปัญหานั้นที่ public key อาจมีขนาดค่อนข้างใหญ่ เงื่อนไขที่บ๊อบใช้ก็อาจมีขนาดใหญ่มากเช่นกัน—อาจมีขนาดหลายพันไบต์ นั่นไม่เพียงแต่เป็นข้อมูลหลายพันไบต์ที่ต้องสื่อสารให้อลิซทราบ แต่ยังเป็นข้อมูลหลายพันไบต์ที่เธอต้องจ่ายค่าธรรมเนียมธุรกรรมทุกครั้งที่ต้องการใช้จ่ายเงินให้บ๊อบ อย่างไรก็ตาม การใช้ฟังก์ชันแฮชเพื่อสร้าง commitment ขนาดเล็กสำหรับข้อมูลขนาดใหญ่ก็สามารถนำมาใช้ได้ในกรณีนี้เช่นกัน
ในเวลาต่อมานั้น การอัปเกรด BIP16 สำหรับโปรโตคอลบิตคอยน์ในปี 2012 ได้อนุญาตให้สคริปต์เอาต์พุตสร้าง commitment กับ redemption script (redeem script) ได้ แปลว่าเมื่อบ๊อบใช้จ่ายบิตคอยน์ของเขา ภายในสคริปต์อินพุตของเขานั้นจะต้องให้ redeem script ที่ตรงกับ commitment และข้อมูลที่จำเป็นเพื่อให้เป็นไปตาม redeem script (เช่น ลายเซ็น) เริ่มต้นด้วยการจินตนาการว่าบ๊อบต้องการให้มีลายเซ็นสองอันเพื่อใช้จ่ายบิตคอยน์ของเขา หนึ่งลายเซ็นจากกระเป๋าเงินบนเดสก์ท็อปและอีกหนึ่งจากอุปกรณ์เซ็นแบบฮาร์ดแวร์ เขาใส่เงื่อนไขเหล่านั้นลงใน redeem script:
<public key 1> OP_CHECKSIGVERIFY <public key 2> OP_CHECKSIG
จากนั้นเขาสร้าง commitment กับ redeem script โดยใช้กลไก HASH160 เดียวกับที่ใช้สำหรับ commitment แบบ P2PKH, RIPEMD160(SHA256(script)) commitment นั้นถูกวางไว้ในสคริปต์เอาต์พุตโดยใช้เทมเพลตพิเศษ:OP_HASH160 <commitment> OP_EQUAL
คำเตือน: เมื่อใช้ pay to script hash (P2SH) คุณต้องใช้เทมเพลต P2SH โดยเฉพาะ ซึ่งจะไม่มีข้อมูลหรือเงื่อนไขเพิ่มเติมในสคริปต์เอาต์พุต หากสคริปต์เอาต์พุตไม่ได้เป็น OP_HASH160 <20 ไบต์> OP_EQUAL แน่นอนว่า redeem script จะไม่ถูกใช้และบิตคอยน์ใด ๆ อาจไม่สามารถใช้จ่ายได้หรืออาจถูกใช้จ่ายได้โดยทุกคน (หมายความว่าใครก็สามารถนำไปใช้ได้)
เมื่อบ๊อบต้องการจ่ายเงินที่เขาได้รับผ่าน commitment สำหรับสคริปต์ของเขา เขาจะใช้สคริปต์อินพุตที่รวมถึง redeem script ซึ่งถูกแปลงให้เป็นข้อมูลอีลิเมนต์เดียว นอกจากนี้เขายังให้ลายเซ็นที่จำเป็นเพื่อให้เป็นไปตาม redeem script โดยเรียงลำดับตามที่จะถูกใช้โดย opcodes:
<signature2> <signature1> <redeem script>
เมื่อโหนดของบิตคอยน์ได้รับการใช้จ่ายของบ๊อบพวกมันจะตรวจสอบว่า redeem script ที่ถูกแปลงเป็นค่าแฮชแล้วมีค่าเดียวกันกับ commitment มั้ย หลังจากนั้นพวกมันจะแทนที่มันบนสแต็คด้วยค่าที่ถอดรหัสแล้ว:<signature2> <signature1> <pubkey1> OP_CHECKSIGVERIFY <pubkey2> OP_CHECKSIG
สคริปต์จะถูกประมวลผล และหากผ่านการตรวจสอบและรายละเอียดธุรกรรมอื่น ๆ ทั้งหมดถูกต้อง ธุรกรรมก็จะถือว่าใช้ได้address สำหรับ P2SH ก็ถูกสร้างด้วย base58check เช่นกัน คำนำหน้าเวอร์ชันถูกตั้งเป็น 5 ซึ่งทำให้ที่อยู่ที่เข้ารหัสแล้วขึ้นต้นด้วยเลข 3 ตัวอย่างของที่อยู่ P2SH คือ 3F6i6kwkevjR7AsAd4te2YB2zZyASEm1HM
TIP: P2SH ไม่จำเป็นต้องเหมือนกับธุรกรรมแบบหลายลายเซ็น (multisignature) เสมอไป ถึง address P2SH ส่วนใหญ่ แทนสคริปต์แบบหลายลายเซ็นก็ตาม แต่อาจแทนสคริปต์ที่เข้ารหัสธุรกรรมประเภทอื่น ๆ ได้ด้วย
P2PKH และ P2SH เป็นสองเทมเพลตสคริปต์เท่านั้นที่ใช้กับการเข้ารหัสแบบ base58check พวกมันเป็นที่รู้จักในปัจจุบันว่าเป็น address แบบ legacy และกลายเป็นรูปแบบที่พบน้อยลงเรื่อยๆ address แบบ legacy ถูกแทนที่ด้วยaddress ตระกูล bech32
การโจมตี P2SH แบบ Collision
address ทั้งหมดที่อิงกับฟังก์ชันแฮชมีความเสี่ยงในทางทฤษฎีต่อผู้โจมตีที่อาจค้นพบอินพุตเดียวกันที่สร้างเอาต์พุตฟังก์ชันแฮช (commitment) โดยอิสระ ในกรณีของบิตคอยน์ หากพวกเขาค้นพบอินพุตในวิธีเดียวกับที่ผู้ใช้ดั้งเดิมทำ พวกเขาจะรู้ private key ของผู้ใช้และสามารถใช้จ่ายบิตคอยน์ของผู้ใช้นั้นได้ โอกาสที่ผู้โจมตีจะสร้างอินพุตสำหรับ commitment ที่มีอยู่แล้วโดยอิสระนั้นขึ้นอยู่กับความแข็งแกร่งของอัลกอริทึมแฮช สำหรับอัลกอริทึมที่ปลอดภัย 160 บิตอย่าง HASH160 ความน่าจะเป็นอยู่ที่ 1 ใน 2^160 นี่เรียกว่าการโจมตีแบบ preimage attack
ผู้โจมตีสามารถพยายามสร้างข้อมูลนำเข้าสองชุดที่แตกต่างกัน (เช่น redeem scripts) ที่สร้างการเข้ารหัสแบบเดียวกันได้ สำหรับ address ที่สร้างโดยฝ่ายเดียวทั้งหมด โอกาสที่ผู้โจมตีจะสร้างข้อมูลนำเข้าที่แตกต่างสำหรับการเข้ารหัสที่มีอยู่แล้วมีประมาณ 1 ใน 2^160 สำหรับอัลกอริทึม HASH160 นี่คือการโจมตีแบบ second preimage attack
อย่างไรก็ตาม สถานการณ์จะเปลี่ยนไปเมื่อผู้โจมตีสามารถมีอิทธิพลต่อค่าข้อมูลนำเข้าดั้งเดิมได้ ตัวอย่างเช่น ผู้โจมตีมีส่วนร่วมในการสร้างสคริปต์แบบหลายลายเซ็น (multisignature script) ซึ่งพวกเขาไม่จำเป็นต้องส่ง public key ของตนจนกว่าจะทราบ public key ของฝ่ายอื่นทั้งหมด ในกรณีนั้น ความแข็งแกร่งของอัลกอริทึมการแฮชจะลดลงเหลือรากที่สองของมัน สำหรับ HASH160 ความน่าจะเป็นจะกลายเป็น 1 ใน 2^80 นี่คือการโจมตีแบบ collision attack
เพื่อให้เข้าใจตัวเลขเหล่านี้ในบริบทที่ชัดเจน ข้อมูล ณ ต้นปี 2023 นักขุดบิตคอยน์ทั้งหมดรวมกันสามารถประมวลผลฟังก์ชันแฮชประมาณ 2^80 ทุกชั่วโมง พวกเขาใช้ฟังก์ชันแฮชที่แตกต่างจาก HASH160 ดังนั้นฮาร์ดแวร์ที่มีอยู่จึงไม่สามารถสร้างการโจมตีแบบ collision attack สำหรับมันได้ แต่การมีอยู่ของเครือข่ายบิตคอยน์พิสูจน์ว่าการโจมตีแบบชนกันต่อฟังก์ชัน 160 บิตอย่าง HASH160 สามารถทำได้จริงในทางปฏิบัติ นักขุดบิตคอยน์ได้ลงทุนเทียบเท่ากับหลายพันล้านดอลลาร์สหรัฐในฮาร์ดแวร์พิเศษ ดังนั้นการสร้างการโจมตีแบบ collision attack จึงไม่ใช่เรื่องถูก แต่มีองค์กรที่คาดหวังว่าจะได้รับบิตคอยน์มูลค่าหลายพันล้านดอลลาร์ไปยัง address ที่สร้างโดยกระบวนการที่เกี่ยวข้องกับหลายฝ่าย ซึ่งอาจทำให้การโจมตีนี้มีกำไร
มีโปรโตคอลการเข้ารหัสที่เป็นที่ยอมรับอย่างดีในการป้องกันการโจมตีแบบ collision attack แต่วิธีแก้ปัญหาที่ง่ายโดยไม่ต้องใช้ความรู้พิเศษจากผู้พัฒนากระเป๋าเงินคือการใช้ฟังก์ชันแฮชที่แข็งแกร่งกว่า การอัปเกรดบิตคอยน์ในภายหลังทำให้เป็นไปได้ และ address บิตคอยน์ใหม่ให้ความต้านทานการชนกันอย่างน้อย 128 บิต การดำเนินการแฮช 2^128 ครั้งจะใช้เวลานักขุดบิตคอยน์ปัจจุบันทั้งหมดประมาณ 32 พันล้านปี
แม้ว่าเราไม่เชื่อว่ามีภัยคุกคามเร่งด่วนต่อผู้ที่สร้าง address P2SH ใหม่ แต่เราแนะนำให้กระเป๋าเงินใหม่ทั้งหมดใช้ที่อยู่ประเภทใหม่เพื่อขจัดความกังวลเกี่ยวกับการโจมตีแบบ collision attack ของ P2SH address
Bech32 Addresses
ในปี 2017 โปรโตคอลบิตคอยน์ได้รับการอัปเกรด เพื่อป้องกันไม่ให้ตัวระบุธุรกรรม (txids) ไม่สามารถเปลี่ยนแปลงได้ โดยไม่ได้รับความยินยอมจากผู้ใช้ที่ทำการใช้จ่าย (หรือองค์ประชุมของผู้ลงนามเมื่อต้องมีลายเซ็นหลายรายการ) การอัปเกรดนี้เรียกว่า segregated witness (หรือเรียกสั้นๆ ว่า segwit) ซึ่งยังให้ความสามารถเพิ่มเติมสำหรับข้อมูลธุรกรรมในบล็อกและประโยชน์อื่น ๆ อีกหลายประการ แต่อย่างไรก็ตาม หากมีผู้ใช้เก่าที่ต้องการเข้าถึงประโยชน์ของ segwit โดยตรงต้องยอมรับการชำระเงินไปยังสคริปต์เอาต์พุตใหม่
ตามที่ได้กล่าวไว้ใน p2sh หนึ่งในข้อดีของเอาต์พุตประเภท P2SH คือผู้จ่ายไม่จำเป็นต้องรู้รายละเอียดของสคริปต์ที่ผู้รับใช้ การอัปเกรด segwit ถูกออกแบบมาให้ใช้กลไกนี้ได้ดังเดิม จึง ทำให้ผู้จ่ายสามารถเริ่มเข้าถึงประโยชน์ใหม่ ๆ หลายอย่างได้ทันทีโดยใช้ที่อยู่ P2SH แต่เพื่อให้ผู้รับสามารถเข้าถึงประโยชน์เหล่านั้นได้ พวกเขาจำเป็นจะต้องให้กระเป๋าเงินของผู้จ่ายจ่ายเงินให้เขาโดยใช้สคริปต์ประเภทอื่นแทน ซึ่งจะต้องอาศัยการอัปเกรดกระเป๋าเงินของผู้จ่ายเพื่อรองรับสคริปต์ใหม่เหล่านี้
ในช่วงแรก เหล่านักพัฒนาบิตคอยน์ได้นำเสนอ BIP142 ซึ่งจะยังคงใช้ base58check ร่วมกับไบต์เวอร์ชันใหม่ คล้ายกับการอัปเกรด P2SH แต่การให้กระเป๋าเงินทั้งหมดอัปเกรดไปใช้สคริปต์ใหม่ที่มีเวอร์ชัน base58check ใหม่นั้น คาดว่าจะต้องใช้ความพยายามเกือบเท่ากับการให้พวกเขาอัปเกรดไปใช้รูปแบบ address ที่เป็นแบบใหม่ทั้งหมด ด้วยเหตุนี้้เอง ผู้สนับสนุนบิตคอยน์หลายคนจึงเริ่มออกแบบรูปแบบ address ที่ดีที่สุดเท่าที่เป็นไปได้ พวกเขาระบุปัญหาหลายอย่างกับ base58check ไว้ดังนี้:
- การที่ base58check ใช้อักษรที่มีทั้งตัวพิมพ์ใหญ่และตัวพิมพ์เล็กทำให้ไม่สะดวกในการอ่านออกเสียงหรือคัดลอก ลองอ่าน address แบบเก่าในบทนี้ให้เพื่อนฟังและให้พวกเขาคัดลอก คุณจะสังเกตว่าคุณต้องระบุคำนำหน้าทุกตัวอักษรด้วยคำว่า "ตัวพิมพ์ใหญ่" และ "ตัวพิมพ์เล็ก" และเมื่อคุณตรวจสอบสิ่งที่พวกเขาเขียน คุณจะพบว่าตัวพิมพ์ใหญ่และตัวพิมพ์เล็กของตัวอักษรบางตัวอาจดูคล้ายกันในลายมือของคนส่วนใหญ่
- รูปแบบนี้สามารถตรวจจับข้อผิดพลาดได้ แต่ไม่สามารถช่วยผู้ใช้แก้ไขข้อผิดพลาดเหล่านั้น ตัวอย่างเช่น หากคุณสลับตำแหน่งตัวอักษรสองตัวโดยไม่ตั้งใจเมื่อป้อน address ด้วยตนเอง กระเป๋าเงินของคุณจะเตือนว่ามีข้อผิดพลาดเกิดขึ้นแน่นอน แต่จะไม่ช่วยให้คุณค้นพบว่าข้อผิดพลาดอยู่ที่ไหน คุณอาจต้องใช้เวลาหลายนาทีที่น่าหงุดหงิดเพื่อค้นหาข้อผิดพลาดในที่สุด
- การใช้ตัวอักษรที่มีทั้งตัวพิมพ์ใหญ่และตัวพิมพ์เล็กยังต้องใช้พื้นที่เพิ่มเติมในการเข้ารหัสใน QR code ซึ่งนิยมใช้ในการแชร์ address และ invoice ระหว่างกระเป๋าเงิน พื้นที่เพิ่มเติมนี้หมายความว่า QR code จำเป็นต้องมีขนาดใหญ่ขึ้นที่ความละเอียดเดียวกัน หรือไม่เช่นนั้นก็จะยากต่อการสแกนอย่างรวดเร็ว
- การที่ต้องการให้กระเป๋าเงินผู้จ่ายทุกใบอัปเกรดเพื่อรองรับคุณสมบัติโปรโตคอลใหม่ เช่น P2SH และ segwit แม้ว่าการอัปเกรดเองอาจไม่ต้องใช้โค้ดมากนัก แต่ประสบการณ์แสดงให้เห็นว่าผู้พัฒนากระเป๋าเงินหลายรายมักยุ่งกับงานอื่น ๆ และบางครั้งอาจล่าช้าในการอัปเกรดเป็นเวลาหลายปี สิ่งนี้ส่งผลเสียต่อทุกคนที่ต้องการใช้คุณสมบัติใหม่ ๆ เหล่านี้
นักพัฒนาที่ทำงานเกี่ยวกับรูปแบบ address สำหรับ segwit ได้พบวิธีแก้ปัญหาเหล่านี้ทั้งหมดในรูปแบบ address แบบใหม่ที่เรียกว่า bech32 (ออกเสียงด้วย "ch" อ่อน เช่นใน "เบช สามสิบสอง") คำว่า "bech" มาจาก BCH ซึ่งเป็นอักษรย่อของบุคคลสามคนที่ค้นพบรหัสวนนี้ในปี 1959 และ 1960 ซึ่งเป็นพื้นฐานของ bech32 ส่วน "32" หมายถึงจำนวนตัวอักษรในชุดตัวอักษร bech32 (คล้ายกับ 58 ใน base58check):
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Bech32 ใช้เฉพาะตัวเลขและตัวอักษรรูปแบบเดียว (โดยปกติจะแสดงเป็นตัวพิมพ์เล็ก) แม้ว่าชุดตัวอักษรของมันจะมีขนาดเกือบครึ่งหนึ่งของชุดตัวอักษรใน base58check ก็ตามแต่ address bech32 สำหรับสคริปต์ pay to witness public key hash (P2WPKH) ก็ยังยาวกว่า legacy address และมีขนาดเท่ากันกับสคริปต์ P2PKH
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Bech32 สามารถทั้งตรวจจับและช่วยแก้ไขข้อผิดพลาดได้ ใน address ที่มีความยาวตามที่คาดหวังได้ และสามารถรับประกันทางคณิตศาสตร์ได้ว่าจะตรวจพบข้อผิดพลาดใด ๆ ที่ส่งผลกระทบต่อตัวอักษร 4 ตัวหรือน้อยกว่า ซึ่งเชื่อถือได้มากกว่า base58check ส่วนสำหรับข้อผิดพลาดที่ยาวกว่านั้น จะไม่สามารถตรวจพบได้ (โอกาสเกิดน้อยกว่าหนึ่งครั้งในหนึ่งพันล้าน) ซึ่งมีความเชื่อถือได้ประมาณเท่ากับ base58check ยิ่งไปกว่านั้น สำหรับ adddress ที่พิมพ์โดยมีข้อผิดพลาดเพียงเล็กน้อย มันสามารถบอกผู้ใช้ได้ว่าข้อผิดพลาดเหล่านั้นเกิดขึ้นที่ไหน ช่วยให้พวกเขาสามารถแก้ไขข้อผิดพลาดจากการคัดลอกเล็ก ๆ น้อย ๆ ได้อย่างรวดเร็ว
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ตัวอย่างที่ 3 Bech32 address ที่มีข้อผิดพลาด Address: bc1p9nh05ha8wrljf7ru236awn4t2x0d5ctkkywmv9sclnm4t0av2vgs4k3au7 ข้อผิดพลาดที่ตรวจพบแสดงเป็นตัวหนาและขีดเส้นใต้ สร้างโดยใช้โปรแกรมสาธิตการถอดรหัส bech32 address
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bech32 address นิยมเขียนด้วยตัวอักษรพิมพ์เล็กเท่านั้น แต่ตัวอักษรพิมพ์เล็กเหล่านี้สามารถแทนที่ด้วยตัวอักษรพิมพ์ใหญ่ก่อนการเข้ารหัส address ในรหัส QR ได้ วิธีนี้ช่วยให้สามารถใช้โหมดการเข้ารหัส QR แบบพิเศษที่ใช้พื้นที่น้อยกว่า คุณจะสังเกตเห็นความแตกต่างในขนาดและความซับซ้อนของรหัส QR ทั้งสองสำหรับที่อยู่เดียวกันในรูปภาพข้างล่างนี้
- Bech32 ใช้ประโยชน์จากกลไกการอัปเกรดที่ออกแบบมาเป็นส่วนหนึ่งของ segwit เพื่อทำให้กระเป๋าเงินผู้จ่ายสามารถจ่ายเงินไปยังประเภทเอาต์พุตที่ยังไม่ได้ใช้งานได้ โดยมีเป้าหมายคือการอนุญาตให้นักพัฒนาสร้างกระเป๋าเงินในวันนี้ที่สามารถใช้จ่ายไปยัง bech32 address และทำให้กระเป๋าเงินนั้นยังคงสามารถใช้จ่ายไปยัง bech32address ได้สำหรับผู้ใช้คุณสมบัติใหม่ที่เพิ่มในการอัปเกรดโปรโตคอลในอนาคต โดยที่มีความหวังว่าเราอาจไม่จำเป็นต้องผ่านรอบการอัปเกรดทั้งระบบอีกต่อไป ซึ่งจำเป็นสำหรับการให้ผู้คนใช้งาน P2SH และ segwit ได้อย่างเต็มรูปแบบ
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Problems with Bech32 Addresses
address แบบ bech32 ประสบความสำเร็จในทุกด้านยกเว้นปัญหาหนึ่ง คือการรับประกันทางคณิตศาสตร์เกี่ยวกับความสามารถในการตรวจจับข้อผิดพลาดจะใช้ได้เฉพาะเมื่อความยาวของ address ที่คุณป้อนเข้าไปในกระเป๋าเงินมีความยาวเท่ากับ address ดั้งเดิมเท่านั้น หากคุณเพิ่มหรือลบตัวอักษรใด ๆ ระหว่างการคัดลอกจะทำให้ไม่สามารถตรวจจับได้ การรับประกันนี้จะไม่มีผล และกระเป๋าเงินของคุณอาจใช้จ่ายเงินไปยัง address ที่ไม่ถูกต้อง แต่อย่างไรก็ตาม แม้จะไม่มีคุณสมบัตินี้ มีความเชื่อว่าเป็นไปได้ยากมากที่ผู้ใช้ที่เพิ่มหรือลบตัวอักษรจะสร้างสตริงที่มีผลรวมตรวจสอบที่ถูกต้อง ซึ่งช่วยให้มั่นใจได้ว่าเงินของผู้ใช้จะปลอดภัย
น่าเสียดายที่การเลือกใช้ค่าคงที่ตัวหนึ่งในอัลกอริทึม bech32 บังเอิญทำให้การเพิ่มหรือลบตัวอักษร "q" ในตำแหน่งที่สองจากท้ายของ address ที่ลงท้ายด้วยตัวอักษร "p" เป็นเรื่องง่ายมาก ในกรณีเหล่านั้น คุณยังสามารถเพิ่มหรือลบตัวอักษร "q" หลายครั้งได้ด้วย ข้อผิดพลาดนี้จะถูกตรวจจับโดยผลรวมตรวจสอบ (checksum) ในบางครั้ง แต่จะถูกมองข้ามบ่อยกว่าความคาดหวังหนึ่งในพันล้านสำหรับข้อผิดพลาดจากการแทนที่ของ bech32 อย่างมาก สำหรับตัวอย่างสามารถดูได้ในรูปภาพข้างล่างนี้
ตัวอย่างที่ 4. การขยายความยาวของ bech32 address โดยไม่ทำให้ผลรวมตรวจสอบเป็นโมฆะ ``` bech32 address ที่ถูกต้อง: bc1pqqqsq9txsqp
address ที่ไม่ถูกต้องแต่มีผลรวมตรวจสอบที่ถูกต้อง: bc1pqqqsq9txsqqqqp bc1pqqqsq9txsqqqqqqp bc1pqqqsq9txsqqqqqqqqp bc1pqqqsq9txsqqqqqqqqqp bc1pqqqsq9txsqqqqqqqqqqqp ```
จากตัวอย่างนี้ คุณจะเห็นว่าแม้มีการเพิ่มตัวอักษร "q" เข้าไปหลายตัวก่อนตัวอักษร "p" ตัวสุดท้าย ระบบตรวจสอบก็ยังคงยอมรับว่า address เหล่านี้ถูกต้อง นี่เป็นข้อบกพร่องสำคัญของ bech32 เพราะอาจทำให้เงินถูกส่งไปยัง address ที่ไม่มีใครเป็นเจ้าของจริง ๆ หรือ address ที่ไม่ได้ตั้งใจจะส่งไป
สำหรับเวอร์ชันเริ่มต้นของ segwit (เวอร์ชัน 0) ปัญหานี้ไม่ใช่ความกังวลในทางปฏิบัติ เพราะมีความยาวที่ถูกต้องมีเพียงสองแบบที่กำหนดไว้สำหรับเอาต์พุต นั้นคือ 22 Byte และ 34 Byte ซึ่งสอดคล้องกับ bech32 address ที่มีความยาวยาวที่ 42 หรือ 62 ตัวอักษร ดังนั้นคนจะต้องเพิ่มหรือลบตัวอักษร "q" จากตำแหน่งที่สองจากท้ายของ bech32 address ถึง 20 ครั้งเพื่อส่งเงินไปยัง address ที่ไม่ถูกต้องโดยที่กระเป๋าเงินไม่สามารถตรวจจับได้ อย่างไรก็ตาม มันอาจกลายเป็นปัญหาสำหรับผู้ใช้ในอนาคตหากมีการนำการอัปเกรดบนพื้นฐานของ segwit มาใช้
Bech32m
แม้ว่า bech32 จะทำงานได้ดีสำหรับ segwit v0 แต่นักพัฒนาไม่ต้องการจำกัดขนาดเอาต์พุตโดยไม่จำเป็นในเวอร์ชันหลังๆ ของ segwit หากไม่มีข้อจำกัด การเพิ่มหรือลบตัวอักษร "q" เพียงตัวเดียวใน bech32 address อาจทำให้ผู้ใช้ส่งเงินโดยไม่ตั้งใจไปยังเอาต์พุตที่ไม่สามารถใช้จ่ายได้หรือสามารถใช้จ่ายได้โดยทุกคน (ทำให้บิตคอยน์เหล่านั้นถูกนำไปโดยทุกคนได้) นักพัฒนาได้วิเคราะห์ปัญหา bech32 อย่างละเอียดและพบว่าการเปลี่ยนค่าคงที่เพียงตัวเดียวในอัลกอริทึมของพวกเขาจะขจัดปัญหานี้ได้ ทำให้มั่นใจว่าการแทรกหรือลบตัวอักษรสูงสุดห้าตัวจะไม่ถูกตรวจจับน้อยกว่าหนึ่งครั้งในหนึ่งพันล้านเท่านั้น
เวอร์ชันของ bech32 ที่มีค่าคงที่เพียงหนึ่งตัวที่แตกต่างกันเรียกว่า bech32 แบบปรับแต่ง (bech32m) ตัวอักษรทั้งหมดใน address แบบ bech32 และ bech32m สำหรับข้อมูลพื้นฐานเดียวกันจะเหมือนกันทั้งหมด ยกเว้นหกตัวสุดท้าย (ซึ่งเป็นส่วนของ checksum) นั่นหมายความว่ากระเป๋าเงินจำเป็นต้องรู้ว่ากำลังใช้เวอร์ชันใดเพื่อตรวจสอบความถูกต้องของ checksum แต่ address ทั้งสองประเภทมีไบต์เวอร์ชันภายในที่ทำให้การระบุเวอร์ชันที่ใช้อยู่เป็นเรื่องที่ง่าย ในการทำงานกับทั้ง bech32 และ bech32m เราจะพิจารณากฎการเข้ารหัสและการแยกวิเคราะห์สำหรับ address บิตคอยน์แบบ bech32m เนื่องจากพวกมันครอบคลุมความสามารถในการแยกวิเคราะห์บน address แบบ bech32 และเป็นรูปแบบ address ที่แนะนำในปัจจุบันสำหรับกระเป๋าเงินบิตคอยน์
ข้อความจากหลาม: คือผมว่าตรงนี้เขาเขียนไม่รู้เรื่อง แต่เดาว่าเขาน่าจะสื่อว่า เราควรเรียนรู้วิธีการทำงานกับ bech32m เพราะมันเป็นรูปแบบที่แนะนำให้ใช้ในปัจจุบัน และมันมีข้อดีเพราะbech32m สามารถรองรับการอ่าน address แบบ bech32 แบบเก่าได้ด้วย ง่ายๆ คือ ถ้าคุณเรียนรู้วิธีทำงานกับ bech32m คุณจะสามารถทำงานกับทั้ง bech32m และ bech32 ได้ทั้งสองแบบ
bech32m address ริ่มต้นด้วยส่วนที่มนุษย์อ่านได้ (Human Readable Part: HRP) BIP173 มีกฎสำหรับการสร้าง HRP ของคุณเอง แต่สำหรับบิตคอยน์ คุณเพียงแค่จำเป็นต้องรู้จัก HRP ที่ถูกเลือกไว้แล้วตามที่แสดงในตารางข้างล่างนี้
ส่วน HRP ตามด้วยตัวคั่น ซึ่งก็คือเลข "1" ในข้อเสนอก่อนหน้านี้สำหรับตัวคั่นโปรโตคอลได้ใช้เครื่องหมายทวิภาค (colon) แต่ระบบปฏิบัติการและแอปพลิเคชันบางตัวที่อนุญาตให้ผู้ใช้ดับเบิลคลิกคำเพื่อไฮไลต์สำหรับการคัดลอกและวางนั้นจะไม่ขยายการไฮไลต์ไปถึงและผ่านเครื่องหมายทวิภาค
การใช้ตัวเลขช่วยให้มั่นใจได้ว่าการไฮไลต์ด้วยดับเบิลคลิกจะทำงานได้กับโปรแกรมใดๆ ที่รองรับสตริง bech32m โดยทั่วไป (ซึ่งรวมถึงตัวเลขอื่นๆ ด้วย) เลข "1" ถูกเลือกเพราะสตริง bech32 ไม่ได้ใช้เลข 1 ในกรณีอื่น เพื่อป้องกันการแปลงโดยไม่ตั้งใจระหว่างเลข "1" กับตัวอักษรพิมพ์เล็ก "l"
และส่วนอื่นของ bech32m address เรียกว่า "ส่วนข้อมูล" (data part) ซึ่งประกอบด้วยสามองค์ประกอบ:
- Witness version: ไบต์ถัดไปหลังจากตัวคั่นตัวอักษรนี้แทนเวอร์ชันของ segwit ตัวอักษร "q" คือการเข้ารหัสของ "0" สำหรับ segwit v0 ซึ่งเป็นเวอร์ชันแรกของ segwit ที่มีการแนะนำที่อยู่ bech32 ตัวอักษร "p" คือการเข้ารหัสของ "1" สำหรับ segwit v1 (หรือเรียกว่า taproot) ซึ่งเริ่มมีการใช้งาน bech32m มีเวอร์ชันที่เป็นไปได้ทั้งหมด 17 เวอร์ชันของ segwit และสำหรับ Bitcoin จำเป็นต้องให้ไบต์แรกของส่วนข้อมูล bech32m ถอดรหัสเป็นตัวเลข 0 ถึง 16 (รวมทั้งสองค่า)
- Witness program: คือตำแหน่งหลังจาก witnessversion ตั้งแต่ตำแหน่ง 2 ถึง 40 Byte สำหรับ segwit v0 นี้ต้องมีความยาว 20 หรือ 32 Byte ไม่สามารถ ffมีขนาดอื่นได้ สำหรับ segwit v1 ความยาวเดียวที่ถูกกำหนดไว้ ณ เวลาที่เขียนนี้คือ 32 ไบต์ แต่อาจมีการกำหนดความยาวอื่น ๆ ได้ในภายหลัง
- Checksum: มีความยาว 6 ตัวอักษร โดยส่วนนี้ถูกสร้างขึ้นโดยใช้รหัส BCH ซึ่งเป็นประเภทของรหัสแก้ไขข้อผิดพลาด (error corection code) (แต่อย่างไรก็ตาม สำหรับ address บิตคอยน์ เราจะเห็นในภายหลังว่าเป็นสิ่งสำคัญที่จะใช้ checksum เพื่อการตรวจจับข้อผิดพลาดเท่านั้น—ไม่ใช่การแก้ไข
ในส่วนต่อไปหลังจากนี้เราจะลองสร้าง address แบบ bech32 และ bech32m สำหรับตัวอย่างทั้งหมดต่อไปนี้ เราจะใช้โค้ดอ้างอิง bech32m สำหรับ Python
เราจะเริ่มด้วยการสร้างสคริปต์เอาต์พุตสี่ตัว หนึ่งตัวสำหรับแต่ละเอาต์พุต segwit ที่แตกต่างกันที่ใช้ในช่วงเวลาของการเผยแพร่ บวกกับอีกหนึ่งตัวสำหรับเวอร์ชัน segwit ในอนาคตที่ยังไม่มีความหมายที่กำหนดไว้ สคริปต์เหล่านี้แสดงอยู่ในตารางข้างล่างนี้
สำหรับเอาต์พุต P2WPKH witness program มีการผูก commitment ที่สร้างขึ้นในลักษณะเดียวกันกับ P2PKH ที่เห็นใน Legacy Addresses for P2PKH โดย public key ถูกส่งเข้าไปในฟังก์ชันแฮช SHA256 ไดเจสต์ขนาด 32 ไบต์ที่ได้จะถูกส่งเข้าไปในฟังก์ชันแฮช RIPEMD-160 ไดเจสต์ของฟังก์ชันนั้น จะถูกวางไว้ใน witness program
สำหรับเอาต์พุตแบบ pay to witness script hash (P2WSH) เราไม่ได้ใช้อัลกอริทึม P2SH แต่เราจะนำสคริปต์ ส่งเข้าไปในฟังก์ชันแฮช SHA256 และใช้ไดเจสต์ขนาด 32 ไบต์ของฟังก์ชันนั้นใน witness program สำหรับ P2SH ไดเจสต์ SHA256 จะถูกแฮชอีกครั้งด้วย RIPEMD-160 ซึ่งแน่นอนว่าอาจจะไม่ปลอดภัย ในบางกรณี สำหรับรายละเอียด ดูที่ P2SH Collision Attacks ผลลัพธ์ของการใช้ SHA256 โดยไม่มี RIPEMD-160 คือ การผูกพันแบบ P2WSH มีขนาด 32 ไบต์ (256 บิต) แทนที่จะเป็น 20 ไบต์ (160 บิต)
สำหรับเอาต์พุตแบบ pay-to-taproot (P2TR) witness program คือจุดบนเส้นโค้ง secp256k1 มันอาจเป็น public key แบบธรรมดา แต่ในกรณีส่วนใหญ่มันควรเป็น public key ที่ผูกพันกับข้อมูลเพิ่มเติมบางอย่าง เราจะเรียนรู้เพิ่มเติมเกี่ยวกับการผูกพันนั้นในหัวข้อของ taproot
สำหรับตัวอย่างของเวอร์ชัน segwit ในอนาคต เราเพียงแค่ใช้หมายเลขเวอร์ชัน segwit ที่สูงที่สุดที่เป็นไปได้ (16) และ witness program ที่มีขนาดเล็กที่สุดที่อนุญาต (2 ไบต์) โดยมีค่าเป็นศูนย์ (null value)
เมื่อเรารู้หมายเลขเวอร์ชันและ witness program แล้ว เราสามารถแปลงแต่ละอย่างให้เป็น bech32 address ได้ โดยการใช้ไลบรารีอ้างอิง bech32m สำหรับ Python เพื่อสร้าง address เหล่านั้นอย่างรวดเร็ว และจากนั้นมาดูอย่างละเอียดว่าเกิดอะไรขึ้น:
``` $ github=" https://raw.githubusercontent.com" $ wget $github/sipa/bech32/master/ref/python/segwit_addr.py $ python
from segwit_addr import * from binascii import unhexlify help(encode) encode(hrp, witver, witprog) Encode a segwit address. encode('bc', 0, unhexlify('2b626ed108ad00a944bb2922a309844611d25468')) 'bc1q9d3xa5gg45q2j39m9y32xzvygcgay4rgc6aaee' encode('bc', 0, unhexlify('648a32e50b6fb7c5233b228f60a6a2ca4158400268844c4bc295ed5e8c3d626f')) 'bc1qvj9r9egtd7mu2gemy28kpf4zefq4ssqzdzzycj7zjhk4arpavfhsct5a3p' encode('bc', 1, unhexlify('2ceefa5fa770ff24f87c5475d76eab519eda6176b11dbe1618fcf755bfac5311')) 'bc1p9nh05ha8wrljf7ru236awm4t2x0d5ctkkywmu9sclnm4t0av2vgs4k3au7' encode('bc', 16, unhexlify('0000')) 'bc1sqqqqkfw08p'
หากเราเปิดไฟล์ segwit_addr.py และดูว่าโค้ดกำลังทำอะไร สิ่งแรกที่เราจะสังเกตเห็นคือความแตกต่างเพียงอย่างเดียวระหว่าง bech32 (ที่ใช้สำหรับ segwit v0) และ bech32m (ที่ใช้สำหรับเวอร์ชัน segwit รุ่นหลัง) คือค่าคงที่:
BECH32_CONSTANT = 1 BECH32M_CONSTANT = 0x2bc830a3 ```และในส่วนต่อไป เราจะเห็นโค้ดที่สร้าง checksum ในขั้นตอนสุดท้ายของการสร้าง checksum ค่าคงที่ที่เหมาะสมถูกรวมเข้ากับข้อมูลอื่น ๆ โดยใช้การดำเนินการ xor ค่าเดียวนั้นคือความแตกต่างเพียงอย่างเดียวระหว่าง bech32 และ bech32m
เมื่อสร้าง checksum แล้ว อักขระ 5 บิตแต่ละตัวในส่วนข้อมูล (รวมถึง witness version, witness program และ checksum) จะถูกแปลงเป็นตัวอักษรและตัวเลข
สำหรับการถอดรหัสกลับเป็นสคริปต์เอาต์พุต เราทำงานย้อนกลับ ลองใช้ไลบรารีอ้างอิงเพื่อถอดรหัส address สอง address ของเรา: ```
help(decode) decode(hrp, addr) Decode a segwit address. _ = decode("bc", "bc1q9d3xa5gg45q2j39m9y32xzvygcgay4rgc6aaee") [0], bytes([1]).hex() (0, '2b626ed108ad00a944bb2922a309844611d25468') _ = decode("bc", "bc1p9nh05ha8wrljf7ru236awm4t2x0d5ctkkywmu9sclnm4t0av2vgs4k3au7") [0], bytes([1]).hex() (1, '2ceefa5fa770ff24f87c5475d76eab519eda6176b11dbe1618fcf755bfac5311')
เราได้รับทั้ง witness version และ witness program กลับมา สิ่งเหล่านี้สามารถแทรกลงในเทมเพลตสำหรับสคริปต์เอาต์พุตของเรา:
ตัวอย่างเช่น:
OP_0 2b626ed108ad00a944bb2922a309844611d25468 OP_1 2ceefa5fa770ff24f87c5475d76eab519eda6176b11dbe1618fcf755bfac5311 ``` คำเตือน: ข้อผิดพลาดที่อาจเกิดขึ้นที่ควรระวังคือ witness version ที่มีค่า 0 ใช้สำหรับ OP_0 ซึ่งใช้ไบต์ 0x00—แต่เวอร์ชัน witness ที่มีค่า 1 ใช้ OP_1 ซึ่งเป็นไบต์ 0x51 เวอร์ชัน witness 2 ถึง 16 ใช้ไบต์ 0x52 ถึง 0x60 ตามลำดับเมื่อทำการเขียนโค้ดเพื่อเข้ารหัสหรือถอดรหัส bech32m เราขอแนะนำอย่างยิ่งให้คุณใช้เวกเตอร์ทดสอบ (test vectors) ที่มีให้ใน BIP350 เราขอให้คุณตรวจสอบให้แน่ใจว่าโค้ดของคุณผ่านเวกเตอร์ทดสอบที่เกี่ยวข้องกับการจ่ายเงินให้กับเวอร์ชัน segwit ในอนาคตที่ยังไม่ได้รับการกำหนด สิ่งนี้จะช่วยให้ซอฟต์แวร์ของคุณสามารถใช้งานได้อีกหลายปีข้างหน้า แม้ว่าคุณอาจจะไม่สามารถเพิ่มการรองรับคุณสมบัติใหม่ ๆ ของบิตคอยน์ได้ทันทีที่คุณสมบัตินั้น ๆ เริ่มใช้งานได้
Private Key Formats
private key สามารถถูกแสดงได้ในหลาย ๆ รูปแบบที่ต่างกันซึ่งสามารถแปลงเป็นตัวเลขขนาด 256 bit ชุดเดียวกันได้ ดังที่เราจะแสดงให้ดูในตารางข้างล่างนี้ รูปแบบที่แตกต่างกันถูกใช้ในสถานการณ์ที่ต่างกัน รูปแบบเลขฐานสิบหก (Hexadecimal) และรูปแบบไบนารี (raw binary) ถูกใช้ภายในซอฟต์แวร์และแทบจะไม่แสดงให้ผู้ใช้เห็น WIF ถูกใช้สำหรับการนำเข้า/ส่งออกกุญแจระหว่างกระเป๋าเงินและมักใช้ในการแสดงกุญแจส่วนตัวแบบ QR code
รูปแบบของ private key ในปัจจุบัน
ซอฟต์แวร์กระเป๋าเงินบิตคอยน์ในยุคแรกได้สร้าง private key อิสระอย่างน้อยหนึ่งดอกเมื่อกระเป๋าเงินของผู้ใช้ใหม่ถูกเริ่มต้น เมื่อชุดกุญแจเริ่มต้นถูกใช้ทั้งหมดแล้ว กระเป๋าเงินอาจสร้าง private key เพิ่มเติม private key แต่ละดอกสามารถส่งออกหรือนำเข้าได้ ทุกครั้งที่มีการสร้างหรือนำเข้า private key ใหม่ จะต้องมีการสร้างการสำรองข้อมูลกระเป๋าเงินใหม่ด้วย
กระเป๋าเงินบิตคอยน์ในยุคหลังเริ่มใช้กระเป๋าเงินแบบกำหนดได้ (deterministic wallets) ซึ่ง private key ทั้งหมดถูกสร้างจาก seed เพียงค่าเดียว กระเป๋าเงินเหล่านี้จำเป็นต้องสำรองข้อมูลเพียงครั้งเดียวเท่านั้นสำหรับการใช้งานบนเชนทั่วไป แต่อย่างไรก็ตาม หากผู้ใช้ส่งออก private key เพียงดอกเดียวจากกระเป๋าเงินเหล่านี้ และผู้โจมตีได้รับกุญแจนั้นรวมถึงข้อมูลที่ไม่ใช่ข้อมูลส่วนตัวบางอย่างเกี่ยวกับกระเป๋าเงิน พวกเขาอาจสามารถสร้างกุญแจส่วนตัวใด ๆ ในกระเป๋าเงินได้—ทำให้ผู้โจมตีสามารถขโมยเงินทั้งหมดในกระเป๋าเงินได้ นอกจากนี้ ยังไม่สามารถนำเข้ากุญแจสู่กระเป๋าเงินแบบกำหนดได้ นี่หมายความว่าแทบไม่มีกระเป๋าเงินสมัยใหม่ที่รองรับความสามารถในการส่งออกหรือนำเข้ากุญแจเฉพาะดอก ข้อมูลในส่วนนี้มีความสำคัญหลัก ๆ สำหรับผู้ที่ต้องการความเข้ากันได้กับกระเป๋าเงินบิตคอยน์ในยุคแรก ๆ
รูปแบบของ private key (รูปแบบการเข้ารหัส)
private key เดียวกันในแต่ละ format
รูปแบบการแสดงผลทั้งหมดเหล่านี้เป็นวิธีต่างๆ ในการแสดงเลขจำนวนเดียวกัน private key เดียวกัน พวกมันดูแตกต่างกัน แต่รูปแบบใดรูปแบบหนึ่งสามารถแปลงไปเป็นรูปแบบอื่นได้อย่างง่ายดาย
Compressed Private Keys
คำว่า compressed private key ที่ใช้กันทั่วไปนั้นเป็นคำที่เรียกผิด เพราะเมื่อ private key ถูกส่งออกไปในรูปแบบ WIF-compressed มันจะมีความยาวมากกว่า private key แบบ uncompressed 1 Byte (เลข 01 ในช่อง Hex-compressed ในตารางด้านล่างนี้) ซึ่งบ่งบอกว่า private key ตัวนี้ มาจากกระเป๋าเงินรุ่นใหม่และควรใช้เพื่อสร้าง compressed public key เท่านั้น
private key เองไม่ได้ถูกบีบอัดและไม่สามารถบีบอัดได้ คำว่า compressed private key จริงๆ แล้วหมายถึง " private key ซึ่งควรใช้สร้าง compressed public key เท่านั้น" ในขณะที่ uncompressed private key จริงๆ แล้วหมายถึง “private key ซึ่งควรใช้สร้าง uncompressed public key เท่านั้น” คุณควรใช้เพื่ออ้างถึงรูปแบบการส่งออกเป็น "WIF-compressed" หรือ "WIF" เท่านั้น และไม่ควรอ้างถึง private key ว่า "บีบอัด" เพื่อหลีกเลี่ยงความสับสนต่อไป
ตารางนี้แสดงกุญแจเดียวกันที่ถูกเข้ารหัสในรูปแบบ WIF และ WIF-compressed
ตัวอย่าง: กุญแจเดียวกัน แต่รูปแบบต่างกัน
สังเกตว่ารูปแบบ Hex-compressed มีไบต์เพิ่มเติมหนึ่งไบต์ที่ท้าย (01 ในเลขฐานสิบหก) ในขณะที่คำนำหน้าเวอร์ชันการเข้ารหัสแบบ base58 เป็นค่าเดียวกัน (0x80) สำหรับทั้งรูปแบบ WIF และ WIF-compressed การเพิ่มหนึ่งไบต์ที่ท้ายของตัวเลขทำให้อักขระตัวแรกของการเข้ารหัสแบบ base58 เปลี่ยนจาก 5 เป็น K หรือ L
คุณสามารถคิดถึงสิ่งนี้เหมือนกับความแตกต่างของการเข้ารหัสเลขฐานสิบระหว่างตัวเลข 100 และตัวเลข 99 ในขณะที่ 100 มีความยาวมากกว่า 99 หนึ่งหลัก มันยังมีคำนำหน้าเป็น 1 แทนที่จะเป็นคำนำหน้า 9 เมื่อความยาวเปลี่ยนไป มันส่งผลต่อคำนำหน้า ในระบบ base58 คำนำหน้า 5 เปลี่ยนเป็น K หรือ L เมื่อความยาวของตัวเลขเพิ่มขึ้นหนึ่งไบต์
TIPจากหลาม: ผมว่าเขาเขียนย่อหน้านี้ไม่ค่อยรู้เรื่อง แต่ความหมายมันจะประมาณว่า เหมือนถ้าเราต้องการเขียนเลข 100 ในฐาน 10 เราต้องใช้สามตำแหน่ง 100 แต่ถ้าใช้ฐาน 16 เราจะใช้แค่ 2 ตำแหน่งคือ 64 ซึ่งมีค่าเท่ากัน
ถ้ากระเป๋าเงินบิตคอยน์สามารถใช้ compressed public key ได้ มันจะใช้ในทุกธุรกรรม private key ในกระเป๋าเงินจะถูกใช้เพื่อสร้างจุด public key บนเส้นโค้ง ซึ่งจะถูกบีบอัด compressed public key จะถูกใช้เพื่อสร้าง address และ address เหล่านี้จะถูกใช้ในธุรกรรม เมื่อส่งออก private key จากกระเป๋าเงินใหม่ที่ใช้ compressed public key WIF จะถูกปรับเปลี่ยน โดยเพิ่มต่อท้ายขนาด 1 ไบต์ 01 ให้กับ private key ที่ถูกเข้ารหัสแบบ base58check ที่ได้จะเรียกว่า "WIF-compressed" และจะขึ้นต้นด้วยอักษร K หรือ L แทนที่จะขึ้นต้นด้วย "5" เหมือนกับกรณีของคีย์ที่เข้ารหัสแบบ WIF (ไม่บีบอัด) จากกระเป๋าเงินรุ่นเก่า
Advanced Keys and Addresses
ในส่วนต่อไปนี้ เราจะดูรูปแบบของคีย์และ address เช่น vanity addresses และ paper wallets
vanity addresses
vanity addresses หรือ addresses แบบกำหนดเอง คือ address ที่มีข้อความที่มนุษย์อ่านได้และสามารถใช้งานได้จริง ตัวอย่างเช่น 1LoveBPzzD72PUXLzCkYAtGFYmK5vYNR33 อย่างที่เห็นว่ามันเป็น address ที่ถูกต้องซึ่งมีตัวอักษรเป็นคำว่า Love เป็นตัวอักษร base58 สี่ตัวแรก addresses แบบกำหนดเองต้องอาศัยการสร้างและทดสอบ private key หลายพันล้านตัวจนกว่าจะพบ address ที่มีรูปแบบตามที่ต้องการ แม้ว่าจะมีการปรับปรุงบางอย่างในอัลกอริทึมการสร้าง addresses แบบกำหนดเอง แต่กระบวนการนี้ต้องใช้การสุ่มเลือก private key มาสร้าง public key และนำไปสร้าง address และตรวจสอบว่าตรงกับรูปแบบที่ต้องการหรือไม่ โดยทำซ้ำหลายพันล้านครั้งจนกว่าจะพบที่ตรงกัน
เมื่อพบ address ที่ตรงกับรูปแบบที่ต้องการแล้ว private key ที่ใช้สร้าง address นั้นสามารถใช้โดยเจ้าของเพื่อใช้จ่ายบิตคอยน์ได้เหมือนกับ address อื่น ๆ ทุกประการ address ที่กำหนดเองไม่ได้มีความปลอดภัยน้อยกว่าหรือมากกว่าที่ address ๆ พวกมันขึ้นอยู่กับการเข้ารหัสเส้นโค้งรูปวงรี (ECC) และอัลกอริทึมแฮชที่ปลอดภัย (SHA) เหมือนกับ address อื่น ๆ คุณไม่สามารถค้นหา private key ของ address ที่ขึ้นต้นด้วยรูปแบบที่กำหนดเองได้ง่ายกว่า address อื่น ๆ
ตัวอย่างเช่น ยูจีเนียเป็นผู้อำนวยการการกุศลเพื่อเด็กที่ทำงานในฟิลิปปินส์ สมมติว่ายูจีเนียกำลังจัดการระดมทุนและต้องการใช้ address ที่กำหนดเองเพื่อประชาสัมพันธ์การระดมทุน ยูจีเนียจะสร้าง address ที่กำหนดเองที่ขึ้นต้นด้วย "1Kids" เพื่อส่งเสริมการระดมทุนเพื่อการกุศลสำหรับเด็ก มาดูกันว่า address ที่กำหนดเองนี้จะถูกสร้างขึ้นอย่างไรและมีความหมายอย่างไรต่อความปลอดภัยของการกุศลของยูจีเนีย
การสร้าง address ที่กำหนดเอง
ควรเข้าใจว่า address ของบิตคอยน์เป็นเพียงตัวเลขที่แสดงด้วยสัญลักษณ์ในรูปแบบตัวอักษร base58 เท่านั้น เพราะฉะนั้นแล้ว การค้นหารูปแบบเช่น "1Kids" สามารถมองได้ว่าเป็นการค้นหาที่อยู่ในช่วงตั้งแต่ 1Kids11111111111111111111111111111 ถึง 1Kidszzzzzzzzzzzzzzzzzzzzzzzzzzzzz มีประมาณ 5829 (ประมาณ 1.4 × 1051) address ในช่วงนั้น ทั้งหมดขึ้นต้นด้วย "1Kids" ตารางด้านล่างนี้แสดงช่วงของ address ที่มีคำนำหน้า 1Kids
ลองดูรูปแบบ "1Kids" ในรูปของตัวเลขและดูว่าเราอาจพบรูปแบบนี้ใน bitcoin address บ่อยแค่ไหน โดยตารางข้างล่างนี้แสดงให้เห็นถีงคอมพิวเตอร์เดสก์ท็อปทั่วไปที่ไม่มีฮาร์ดแวร์พิเศษสามารถค้นหาคีย์ได้ประมาณ 100,000 คีย์ต่อวินาที
ความถี่ของ address ที่กำหนดเอง (1KidsCharity) และเวลาค้นหาเฉลี่ยบนคอมพิวเตอร์เดสก์ท็อป
ดังที่เห็นได้ ยูจีเนียคงไม่สามารถสร้าง address แบบกำหนดเอง "1KidsCharity" ได้ในเร็ว ๆ นี้ แม้ว่าเธอจะมีคอมพิวเตอร์หลายพันเครื่องก็ตาม ทุกตัวอักษรที่เพิ่มขึ้นจะเพิ่มความยากขึ้น 58 เท่า รูปแบบที่มีมากกว่า 7 ตัวอักษรมักจะถูกค้นพบโดยฮาร์ดแวร์พิเศษ เช่น คอมพิวเตอร์เดสก์ท็อปที่สร้างขึ้นเป็นพิเศษที่มีหน่วยประมวลผลกราฟิก (GPUs) หลายตัว การค้นหา address แบบกำหนดเองบนระบบ GPU เร็วกว่าบน CPU ทั่วไปหลายเท่า
อีกวิธีหนึ่งในการหา address แบบกำหนดเองคือการจ้างงานไปยังกลุ่มคนขุด vanity addresses กลุ่มคนขุดvanity addresses เป็นบริการที่ให้ผู้ที่มีฮาร์ดแวร์ที่เร็วได้รับบิตคอยน์จากการค้นหา vanity addresses ให้กับผู้อื่น ยูจีเนียสามารถจ่ายค่าธรรมเนียมเพื่อจ้างงานการค้นหา vanity addresses ที่มีรูปแบบ 7 ตัวอักษรและได้ผลลัพธ์ในเวลาเพียงไม่กี่ชั่วโมงแทนที่จะต้องใช้ CPU ค้นหาเป็นเดือน ๆ
การสร้างที่ address แบบกำหนดเองเป็นการใช้วิธีการแบบ brute-force (ลองทุกความเป็นไปได้): ลองใช้คีย์สุ่ม ตรวจสอบ address ที่ได้ว่าตรงกับรูปแบบที่ต้องการหรือไม่ และทำซ้ำจนกว่าจะสำเร็จ
ความปลอดภัยและความเป็นส่วนตัวของ address แบบกำหนดเอง
address แบบกำหนดเองเคยเป็นที่นิยมในช่วงแรก ๆ ของบิตคอยน์ แต่แทบจะหายไปจากการใช้งานทั้งหมดในปี 2023 มีสาเหตุที่น่าจะเป็นไปได้สองประการสำหรับแนวโน้มนี้: - Deterministic wallets: ดังที่เราเห็นในพาร์ทของการกู้คืน การที่จะสำรองคีย์ทุกตัวในกระเป๋าเงินสมัยใหม่ส่วนใหญ่นั้น ทำเพียงแค่จดคำหรือตัวอักษรไม่กี่ตัว ซึ่งนี่เป็นผลจากการสร้างคีย์ทุกตัวในกระเป๋าเงินจากคำหรือตัวอักษรเหล่านั้นโดยใช้อัลกอริทึมแบบกำหนดได้ จึงไม่สามารถใช้ address แบบกำหนดเองกับ Deterministic wallets ได้ เว้นแต่ผู้ใช้จะสำรองข้อมูลเพิ่มเติมสำหรับ address แบบกำหนดเองทุก address ที่พวกเขาสร้าง ในทางปฏิบัติแล้วกระเป๋าเงินส่วนใหญ่ที่ใช้การสร้างคีย์แบบกำหนดได้ โดยไม่อนุญาตให้นำเข้าคีย์ส่วนตัวหรือการปรับแต่งคีย์จากโปรแกรมสร้าง address ที่กำหนดเอง
- การหลีกเลี่ยงการใช้ address ซ้ำซ้อน: การใช้ address แบบกำหนดเองเพื่อรับการชำระเงินหลายครั้งไปยัง address เดียวกันจะสร้างความเชื่อมโยงระหว่างการชำระเงินทั้งหมดเหล่านั้น นี่อาจเป็นที่ยอมรับได้สำหรับยูจีเนียหากองค์กรไม่แสวงหาผลกำไรของเธอจำเป็นต้องรายงานรายได้และค่าใช้จ่ายต่อหน่วยงานภาษีอยู่แล้ว แต่อย่างไรก็ตาม มันยังลดความเป็นส่วนตัวของคนที่จ่ายเงินให้ยูจีเนียหรือรับเงินจากเธอด้วย ตัวอย่างเช่น อลิซอาจต้องการบริจาคโดยไม่เปิดเผยตัวตน และบ็อบอาจไม่ต้องการให้ลูกค้ารายอื่นของเขารู้ว่าเขาให้ราคาส่วนลดแก่ยูจีเนีย
เราไม่คาดว่าจะเห็น address แบบกำหนดเองมากนักในอนาคต เว้นแต่ปัญหาที่กล่าวมาก่อนหน้านี้จะได้รับการแก้ไข
Paper Wallets
paper wallet หรือก็คือ private key ที่พิมพ์ลงในกระดาษ และโดยทั่วไปแล้วมักจะมีข้อมูลของ public key หรือ address บนกระดาษนั้นด้วยแม้ว่าจริง ๆ แล้วมันจะสามารถคำนวณได้ด้วย private key ก็ตาม
คำเตือน: paper wallet เป็นเทคโนโลยีที่ล้าสมัยแล้วและอันตรายสำหรับผู้ใช้ส่วนใหญ่ เพราะเป็นเรื่องยากที่จะสร้างมันอย่างปลอดภัย โดยเฉพาะอย่างยิ่งความเป็นไปได้ที่โค้ดที่ใช้สร้างอาจถูกแทรกแซงด้วยผู้ไม่ประสงค์ดี และอาจจะทำให้ผู้ใช้โดนขโมยบิตคอยน์ทั้งหมดไปได้ paper wallet ถูกแสดงที่นี่เพื่อวัตถุประสงค์ในการให้ข้อมูลเท่านั้นและไม่ควรใช้สำหรับเก็บบิตคอยน์
paper wallet ได้ถูกออกแบบมาเพื่อเป็นของขวัญและมีธีมตามฤดูกาล เช่น คริสต์มาสและปีใหม่ ส่วนเหตุผลอื่น ๆ ถูกออกแบบเพื่อการเก็บรักษาในตู้นิรภัยของธนาคารหรือตู้เซฟโดยมี private key ถูกซ่อนไว้ในบางวิธี ไม่ว่าจะด้วยสติกเกอร์แบบขูดที่ทึบแสงหรือพับและปิดผนึกด้วยแผ่นฟอยล์กันการงัดแงะ ส่วนการออกแบบอื่น ๆ มีสำเนาเพิ่มเติมของคีย์และ address ในรูปแบบของตอนฉีกที่แยกออกได้คล้ายกับตั๋ว ช่วยให้คุณสามารถเก็บสำเนาหลายชุดเพื่อป้องกันจากไฟไหม้ น้ำท่วม หรือภัยพิบัติทางธรรมชาติอื่น ๆ
จากการออกแบบเดิมของบิตคอยน์ที่เน้น public key ไปจนถึง address และสคริปต์สมัยใหม่อย่าง bech32m และ pay to taproot—และแม้แต่การอัพเกรดบิตคอยน์ในอนาคต—คุณได้เรียนรู้วิธีที่โปรโตคอลบิตคอยน์อนุญาตให้ผู้จ่ายเงินระบุกระเป๋าเงินที่ควรได้รับการชำระเงินของพวกเขา แต่เมื่อเป็นกระเป๋าเงินของคุณเองที่รับการชำระเงิน คุณจะต้องการความมั่นใจว่าคุณจะยังคงเข้าถึงเงินนั้นได้แม้ว่าจะเกิดอะไรขึ้นกับข้อมูลกระเป๋าเงินของคุณ ในบทต่อไป เราจะดูว่ากระเป๋าเงินบิตคอยน์ถูกออกแบบอย่างไรเพื่อปกป้องเงินทุนจากภัยคุกคามหลากหลายรูปแบบ
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@ 6f6b50bb:a848e5a1
2024-12-15 15:09:52Che cosa significherebbe trattare l'IA come uno strumento invece che come una persona?
Dall’avvio di ChatGPT, le esplorazioni in due direzioni hanno preso velocità.
La prima direzione riguarda le capacità tecniche. Quanto grande possiamo addestrare un modello? Quanto bene può rispondere alle domande del SAT? Con quanta efficienza possiamo distribuirlo?
La seconda direzione riguarda il design dell’interazione. Come comunichiamo con un modello? Come possiamo usarlo per un lavoro utile? Quale metafora usiamo per ragionare su di esso?
La prima direzione è ampiamente seguita e enormemente finanziata, e per una buona ragione: i progressi nelle capacità tecniche sono alla base di ogni possibile applicazione. Ma la seconda è altrettanto cruciale per il campo e ha enormi incognite. Siamo solo a pochi anni dall’inizio dell’era dei grandi modelli. Quali sono le probabilità che abbiamo già capito i modi migliori per usarli?
Propongo una nuova modalità di interazione, in cui i modelli svolgano il ruolo di applicazioni informatiche (ad esempio app per telefoni): fornendo un’interfaccia grafica, interpretando gli input degli utenti e aggiornando il loro stato. In questa modalità, invece di essere un “agente” che utilizza un computer per conto dell’essere umano, l’IA può fornire un ambiente informatico più ricco e potente che possiamo utilizzare.
Metafore per l’interazione
Al centro di un’interazione c’è una metafora che guida le aspettative di un utente su un sistema. I primi giorni dell’informatica hanno preso metafore come “scrivanie”, “macchine da scrivere”, “fogli di calcolo” e “lettere” e le hanno trasformate in equivalenti digitali, permettendo all’utente di ragionare sul loro comportamento. Puoi lasciare qualcosa sulla tua scrivania e tornare a prenderlo; hai bisogno di un indirizzo per inviare una lettera. Man mano che abbiamo sviluppato una conoscenza culturale di questi dispositivi, la necessità di queste particolari metafore è scomparsa, e con esse i design di interfaccia skeumorfici che le rafforzavano. Come un cestino o una matita, un computer è ora una metafora di se stesso.
La metafora dominante per i grandi modelli oggi è modello-come-persona. Questa è una metafora efficace perché le persone hanno capacità estese che conosciamo intuitivamente. Implica che possiamo avere una conversazione con un modello e porgli domande; che il modello possa collaborare con noi su un documento o un pezzo di codice; che possiamo assegnargli un compito da svolgere da solo e che tornerà quando sarà finito.
Tuttavia, trattare un modello come una persona limita profondamente il nostro modo di pensare all’interazione con esso. Le interazioni umane sono intrinsecamente lente e lineari, limitate dalla larghezza di banda e dalla natura a turni della comunicazione verbale. Come abbiamo tutti sperimentato, comunicare idee complesse in una conversazione è difficile e dispersivo. Quando vogliamo precisione, ci rivolgiamo invece a strumenti, utilizzando manipolazioni dirette e interfacce visive ad alta larghezza di banda per creare diagrammi, scrivere codice e progettare modelli CAD. Poiché concepiamo i modelli come persone, li utilizziamo attraverso conversazioni lente, anche se sono perfettamente in grado di accettare input diretti e rapidi e di produrre risultati visivi. Le metafore che utilizziamo limitano le esperienze che costruiamo, e la metafora modello-come-persona ci impedisce di esplorare il pieno potenziale dei grandi modelli.
Per molti casi d’uso, e specialmente per il lavoro produttivo, credo che il futuro risieda in un’altra metafora: modello-come-computer.
Usare un’IA come un computer
Sotto la metafora modello-come-computer, interagiremo con i grandi modelli seguendo le intuizioni che abbiamo sulle applicazioni informatiche (sia su desktop, tablet o telefono). Nota che ciò non significa che il modello sarà un’app tradizionale più di quanto il desktop di Windows fosse una scrivania letterale. “Applicazione informatica” sarà un modo per un modello di rappresentarsi a noi. Invece di agire come una persona, il modello agirà come un computer.
Agire come un computer significa produrre un’interfaccia grafica. Al posto del flusso lineare di testo in stile telescrivente fornito da ChatGPT, un sistema modello-come-computer genererà qualcosa che somiglia all’interfaccia di un’applicazione moderna: pulsanti, cursori, schede, immagini, grafici e tutto il resto. Questo affronta limitazioni chiave dell’interfaccia di chat standard modello-come-persona:
-
Scoperta. Un buon strumento suggerisce i suoi usi. Quando l’unica interfaccia è una casella di testo vuota, spetta all’utente capire cosa fare e comprendere i limiti del sistema. La barra laterale Modifica in Lightroom è un ottimo modo per imparare l’editing fotografico perché non si limita a dirti cosa può fare questa applicazione con una foto, ma cosa potresti voler fare. Allo stesso modo, un’interfaccia modello-come-computer per DALL-E potrebbe mostrare nuove possibilità per le tue generazioni di immagini.
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Efficienza. La manipolazione diretta è più rapida che scrivere una richiesta a parole. Per continuare l’esempio di Lightroom, sarebbe impensabile modificare una foto dicendo a una persona quali cursori spostare e di quanto. Ci vorrebbe un giorno intero per chiedere un’esposizione leggermente più bassa e una vibranza leggermente più alta, solo per vedere come apparirebbe. Nella metafora modello-come-computer, il modello può creare strumenti che ti permettono di comunicare ciò che vuoi più efficientemente e quindi di fare le cose più rapidamente.
A differenza di un’app tradizionale, questa interfaccia grafica è generata dal modello su richiesta. Questo significa che ogni parte dell’interfaccia che vedi è rilevante per ciò che stai facendo in quel momento, inclusi i contenuti specifici del tuo lavoro. Significa anche che, se desideri un’interfaccia più ampia o diversa, puoi semplicemente richiederla. Potresti chiedere a DALL-E di produrre alcuni preset modificabili per le sue impostazioni ispirati da famosi artisti di schizzi. Quando clicchi sul preset Leonardo da Vinci, imposta i cursori per disegni prospettici altamente dettagliati in inchiostro nero. Se clicchi su Charles Schulz, seleziona fumetti tecnicolor 2D a basso dettaglio.
Una bicicletta della mente proteiforme
La metafora modello-come-persona ha una curiosa tendenza a creare distanza tra l’utente e il modello, rispecchiando il divario di comunicazione tra due persone che può essere ridotto ma mai completamente colmato. A causa della difficoltà e del costo di comunicare a parole, le persone tendono a suddividere i compiti tra loro in blocchi grandi e il più indipendenti possibile. Le interfacce modello-come-persona seguono questo schema: non vale la pena dire a un modello di aggiungere un return statement alla tua funzione quando è più veloce scriverlo da solo. Con il sovraccarico della comunicazione, i sistemi modello-come-persona sono più utili quando possono fare un intero blocco di lavoro da soli. Fanno le cose per te.
Questo contrasta con il modo in cui interagiamo con i computer o altri strumenti. Gli strumenti producono feedback visivi in tempo reale e sono controllati attraverso manipolazioni dirette. Hanno un overhead comunicativo così basso che non è necessario specificare un blocco di lavoro indipendente. Ha più senso mantenere l’umano nel loop e dirigere lo strumento momento per momento. Come stivali delle sette leghe, gli strumenti ti permettono di andare più lontano a ogni passo, ma sei ancora tu a fare il lavoro. Ti permettono di fare le cose più velocemente.
Considera il compito di costruire un sito web usando un grande modello. Con le interfacce di oggi, potresti trattare il modello come un appaltatore o un collaboratore. Cercheresti di scrivere a parole il più possibile su come vuoi che il sito appaia, cosa vuoi che dica e quali funzionalità vuoi che abbia. Il modello genererebbe una prima bozza, tu la eseguirai e poi fornirai un feedback. “Fai il logo un po’ più grande”, diresti, e “centra quella prima immagine principale”, e “deve esserci un pulsante di login nell’intestazione”. Per ottenere esattamente ciò che vuoi, invierai una lista molto lunga di richieste sempre più minuziose.
Un’interazione alternativa modello-come-computer sarebbe diversa: invece di costruire il sito web, il modello genererebbe un’interfaccia per te per costruirlo, dove ogni input dell’utente a quell’interfaccia interroga il grande modello sotto il cofano. Forse quando descrivi le tue necessità creerebbe un’interfaccia con una barra laterale e una finestra di anteprima. All’inizio la barra laterale contiene solo alcuni schizzi di layout che puoi scegliere come punto di partenza. Puoi cliccare su ciascuno di essi, e il modello scrive l’HTML per una pagina web usando quel layout e lo visualizza nella finestra di anteprima. Ora che hai una pagina su cui lavorare, la barra laterale guadagna opzioni aggiuntive che influenzano la pagina globalmente, come accoppiamenti di font e schemi di colore. L’anteprima funge da editor WYSIWYG, permettendoti di afferrare elementi e spostarli, modificarne i contenuti, ecc. A supportare tutto ciò è il modello, che vede queste azioni dell’utente e riscrive la pagina per corrispondere ai cambiamenti effettuati. Poiché il modello può generare un’interfaccia per aiutare te e lui a comunicare più efficientemente, puoi esercitare più controllo sul prodotto finale in meno tempo.
La metafora modello-come-computer ci incoraggia a pensare al modello come a uno strumento con cui interagire in tempo reale piuttosto che a un collaboratore a cui assegnare compiti. Invece di sostituire un tirocinante o un tutor, può essere una sorta di bicicletta proteiforme per la mente, una che è sempre costruita su misura esattamente per te e il terreno che intendi attraversare.
Un nuovo paradigma per l’informatica?
I modelli che possono generare interfacce su richiesta sono una frontiera completamente nuova nell’informatica. Potrebbero essere un paradigma del tutto nuovo, con il modo in cui cortocircuitano il modello di applicazione esistente. Dare agli utenti finali il potere di creare e modificare app al volo cambia fondamentalmente il modo in cui interagiamo con i computer. Al posto di una singola applicazione statica costruita da uno sviluppatore, un modello genererà un’applicazione su misura per l’utente e le sue esigenze immediate. Al posto della logica aziendale implementata nel codice, il modello interpreterà gli input dell’utente e aggiornerà l’interfaccia utente. È persino possibile che questo tipo di interfaccia generativa sostituisca completamente il sistema operativo, generando e gestendo interfacce e finestre al volo secondo necessità.
All’inizio, l’interfaccia generativa sarà un giocattolo, utile solo per l’esplorazione creativa e poche altre applicazioni di nicchia. Dopotutto, nessuno vorrebbe un’app di posta elettronica che occasionalmente invia email al tuo ex e mente sulla tua casella di posta. Ma gradualmente i modelli miglioreranno. Anche mentre si spingeranno ulteriormente nello spazio di esperienze completamente nuove, diventeranno lentamente abbastanza affidabili da essere utilizzati per un lavoro reale.
Piccoli pezzi di questo futuro esistono già. Anni fa Jonas Degrave ha dimostrato che ChatGPT poteva fare una buona simulazione di una riga di comando Linux. Allo stesso modo, websim.ai utilizza un LLM per generare siti web su richiesta mentre li navighi. Oasis, GameNGen e DIAMOND addestrano modelli video condizionati sull’azione su singoli videogiochi, permettendoti di giocare ad esempio a Doom dentro un grande modello. E Genie 2 genera videogiochi giocabili da prompt testuali. L’interfaccia generativa potrebbe ancora sembrare un’idea folle, ma non è così folle.
Ci sono enormi domande aperte su come apparirà tutto questo. Dove sarà inizialmente utile l’interfaccia generativa? Come condivideremo e distribuiremo le esperienze che creiamo collaborando con il modello, se esistono solo come contesto di un grande modello? Vorremmo davvero farlo? Quali nuovi tipi di esperienze saranno possibili? Come funzionerà tutto questo in pratica? I modelli genereranno interfacce come codice o produrranno direttamente pixel grezzi?
Non conosco ancora queste risposte. Dovremo sperimentare e scoprirlo!Che cosa significherebbe trattare l'IA come uno strumento invece che come una persona?
Dall’avvio di ChatGPT, le esplorazioni in due direzioni hanno preso velocità.
La prima direzione riguarda le capacità tecniche. Quanto grande possiamo addestrare un modello? Quanto bene può rispondere alle domande del SAT? Con quanta efficienza possiamo distribuirlo?
La seconda direzione riguarda il design dell’interazione. Come comunichiamo con un modello? Come possiamo usarlo per un lavoro utile? Quale metafora usiamo per ragionare su di esso?
La prima direzione è ampiamente seguita e enormemente finanziata, e per una buona ragione: i progressi nelle capacità tecniche sono alla base di ogni possibile applicazione. Ma la seconda è altrettanto cruciale per il campo e ha enormi incognite. Siamo solo a pochi anni dall’inizio dell’era dei grandi modelli. Quali sono le probabilità che abbiamo già capito i modi migliori per usarli?
Propongo una nuova modalità di interazione, in cui i modelli svolgano il ruolo di applicazioni informatiche (ad esempio app per telefoni): fornendo un’interfaccia grafica, interpretando gli input degli utenti e aggiornando il loro stato. In questa modalità, invece di essere un “agente” che utilizza un computer per conto dell’essere umano, l’IA può fornire un ambiente informatico più ricco e potente che possiamo utilizzare.
Metafore per l’interazione
Al centro di un’interazione c’è una metafora che guida le aspettative di un utente su un sistema. I primi giorni dell’informatica hanno preso metafore come “scrivanie”, “macchine da scrivere”, “fogli di calcolo” e “lettere” e le hanno trasformate in equivalenti digitali, permettendo all’utente di ragionare sul loro comportamento. Puoi lasciare qualcosa sulla tua scrivania e tornare a prenderlo; hai bisogno di un indirizzo per inviare una lettera. Man mano che abbiamo sviluppato una conoscenza culturale di questi dispositivi, la necessità di queste particolari metafore è scomparsa, e con esse i design di interfaccia skeumorfici che le rafforzavano. Come un cestino o una matita, un computer è ora una metafora di se stesso.
La metafora dominante per i grandi modelli oggi è modello-come-persona. Questa è una metafora efficace perché le persone hanno capacità estese che conosciamo intuitivamente. Implica che possiamo avere una conversazione con un modello e porgli domande; che il modello possa collaborare con noi su un documento o un pezzo di codice; che possiamo assegnargli un compito da svolgere da solo e che tornerà quando sarà finito.
Tuttavia, trattare un modello come una persona limita profondamente il nostro modo di pensare all’interazione con esso. Le interazioni umane sono intrinsecamente lente e lineari, limitate dalla larghezza di banda e dalla natura a turni della comunicazione verbale. Come abbiamo tutti sperimentato, comunicare idee complesse in una conversazione è difficile e dispersivo. Quando vogliamo precisione, ci rivolgiamo invece a strumenti, utilizzando manipolazioni dirette e interfacce visive ad alta larghezza di banda per creare diagrammi, scrivere codice e progettare modelli CAD. Poiché concepiamo i modelli come persone, li utilizziamo attraverso conversazioni lente, anche se sono perfettamente in grado di accettare input diretti e rapidi e di produrre risultati visivi. Le metafore che utilizziamo limitano le esperienze che costruiamo, e la metafora modello-come-persona ci impedisce di esplorare il pieno potenziale dei grandi modelli.
Per molti casi d’uso, e specialmente per il lavoro produttivo, credo che il futuro risieda in un’altra metafora: modello-come-computer.
Usare un’IA come un computer
Sotto la metafora modello-come-computer, interagiremo con i grandi modelli seguendo le intuizioni che abbiamo sulle applicazioni informatiche (sia su desktop, tablet o telefono). Nota che ciò non significa che il modello sarà un’app tradizionale più di quanto il desktop di Windows fosse una scrivania letterale. “Applicazione informatica” sarà un modo per un modello di rappresentarsi a noi. Invece di agire come una persona, il modello agirà come un computer.
Agire come un computer significa produrre un’interfaccia grafica. Al posto del flusso lineare di testo in stile telescrivente fornito da ChatGPT, un sistema modello-come-computer genererà qualcosa che somiglia all’interfaccia di un’applicazione moderna: pulsanti, cursori, schede, immagini, grafici e tutto il resto. Questo affronta limitazioni chiave dell’interfaccia di chat standard modello-come-persona:
Scoperta. Un buon strumento suggerisce i suoi usi. Quando l’unica interfaccia è una casella di testo vuota, spetta all’utente capire cosa fare e comprendere i limiti del sistema. La barra laterale Modifica in Lightroom è un ottimo modo per imparare l’editing fotografico perché non si limita a dirti cosa può fare questa applicazione con una foto, ma cosa potresti voler fare. Allo stesso modo, un’interfaccia modello-come-computer per DALL-E potrebbe mostrare nuove possibilità per le tue generazioni di immagini.
Efficienza. La manipolazione diretta è più rapida che scrivere una richiesta a parole. Per continuare l’esempio di Lightroom, sarebbe impensabile modificare una foto dicendo a una persona quali cursori spostare e di quanto. Ci vorrebbe un giorno intero per chiedere un’esposizione leggermente più bassa e una vibranza leggermente più alta, solo per vedere come apparirebbe. Nella metafora modello-come-computer, il modello può creare strumenti che ti permettono di comunicare ciò che vuoi più efficientemente e quindi di fare le cose più rapidamente.
A differenza di un’app tradizionale, questa interfaccia grafica è generata dal modello su richiesta. Questo significa che ogni parte dell’interfaccia che vedi è rilevante per ciò che stai facendo in quel momento, inclusi i contenuti specifici del tuo lavoro. Significa anche che, se desideri un’interfaccia più ampia o diversa, puoi semplicemente richiederla. Potresti chiedere a DALL-E di produrre alcuni preset modificabili per le sue impostazioni ispirati da famosi artisti di schizzi. Quando clicchi sul preset Leonardo da Vinci, imposta i cursori per disegni prospettici altamente dettagliati in inchiostro nero. Se clicchi su Charles Schulz, seleziona fumetti tecnicolor 2D a basso dettaglio.
Una bicicletta della mente proteiforme
La metafora modello-come-persona ha una curiosa tendenza a creare distanza tra l’utente e il modello, rispecchiando il divario di comunicazione tra due persone che può essere ridotto ma mai completamente colmato. A causa della difficoltà e del costo di comunicare a parole, le persone tendono a suddividere i compiti tra loro in blocchi grandi e il più indipendenti possibile. Le interfacce modello-come-persona seguono questo schema: non vale la pena dire a un modello di aggiungere un return statement alla tua funzione quando è più veloce scriverlo da solo. Con il sovraccarico della comunicazione, i sistemi modello-come-persona sono più utili quando possono fare un intero blocco di lavoro da soli. Fanno le cose per te.
Questo contrasta con il modo in cui interagiamo con i computer o altri strumenti. Gli strumenti producono feedback visivi in tempo reale e sono controllati attraverso manipolazioni dirette. Hanno un overhead comunicativo così basso che non è necessario specificare un blocco di lavoro indipendente. Ha più senso mantenere l’umano nel loop e dirigere lo strumento momento per momento. Come stivali delle sette leghe, gli strumenti ti permettono di andare più lontano a ogni passo, ma sei ancora tu a fare il lavoro. Ti permettono di fare le cose più velocemente.
Considera il compito di costruire un sito web usando un grande modello. Con le interfacce di oggi, potresti trattare il modello come un appaltatore o un collaboratore. Cercheresti di scrivere a parole il più possibile su come vuoi che il sito appaia, cosa vuoi che dica e quali funzionalità vuoi che abbia. Il modello genererebbe una prima bozza, tu la eseguirai e poi fornirai un feedback. “Fai il logo un po’ più grande”, diresti, e “centra quella prima immagine principale”, e “deve esserci un pulsante di login nell’intestazione”. Per ottenere esattamente ciò che vuoi, invierai una lista molto lunga di richieste sempre più minuziose.
Un’interazione alternativa modello-come-computer sarebbe diversa: invece di costruire il sito web, il modello genererebbe un’interfaccia per te per costruirlo, dove ogni input dell’utente a quell’interfaccia interroga il grande modello sotto il cofano. Forse quando descrivi le tue necessità creerebbe un’interfaccia con una barra laterale e una finestra di anteprima. All’inizio la barra laterale contiene solo alcuni schizzi di layout che puoi scegliere come punto di partenza. Puoi cliccare su ciascuno di essi, e il modello scrive l’HTML per una pagina web usando quel layout e lo visualizza nella finestra di anteprima. Ora che hai una pagina su cui lavorare, la barra laterale guadagna opzioni aggiuntive che influenzano la pagina globalmente, come accoppiamenti di font e schemi di colore. L’anteprima funge da editor WYSIWYG, permettendoti di afferrare elementi e spostarli, modificarne i contenuti, ecc. A supportare tutto ciò è il modello, che vede queste azioni dell’utente e riscrive la pagina per corrispondere ai cambiamenti effettuati. Poiché il modello può generare un’interfaccia per aiutare te e lui a comunicare più efficientemente, puoi esercitare più controllo sul prodotto finale in meno tempo.
La metafora modello-come-computer ci incoraggia a pensare al modello come a uno strumento con cui interagire in tempo reale piuttosto che a un collaboratore a cui assegnare compiti. Invece di sostituire un tirocinante o un tutor, può essere una sorta di bicicletta proteiforme per la mente, una che è sempre costruita su misura esattamente per te e il terreno che intendi attraversare.
Un nuovo paradigma per l’informatica?
I modelli che possono generare interfacce su richiesta sono una frontiera completamente nuova nell’informatica. Potrebbero essere un paradigma del tutto nuovo, con il modo in cui cortocircuitano il modello di applicazione esistente. Dare agli utenti finali il potere di creare e modificare app al volo cambia fondamentalmente il modo in cui interagiamo con i computer. Al posto di una singola applicazione statica costruita da uno sviluppatore, un modello genererà un’applicazione su misura per l’utente e le sue esigenze immediate. Al posto della logica aziendale implementata nel codice, il modello interpreterà gli input dell’utente e aggiornerà l’interfaccia utente. È persino possibile che questo tipo di interfaccia generativa sostituisca completamente il sistema operativo, generando e gestendo interfacce e finestre al volo secondo necessità.
All’inizio, l’interfaccia generativa sarà un giocattolo, utile solo per l’esplorazione creativa e poche altre applicazioni di nicchia. Dopotutto, nessuno vorrebbe un’app di posta elettronica che occasionalmente invia email al tuo ex e mente sulla tua casella di posta. Ma gradualmente i modelli miglioreranno. Anche mentre si spingeranno ulteriormente nello spazio di esperienze completamente nuove, diventeranno lentamente abbastanza affidabili da essere utilizzati per un lavoro reale.
Piccoli pezzi di questo futuro esistono già. Anni fa Jonas Degrave ha dimostrato che ChatGPT poteva fare una buona simulazione di una riga di comando Linux. Allo stesso modo, websim.ai utilizza un LLM per generare siti web su richiesta mentre li navighi. Oasis, GameNGen e DIAMOND addestrano modelli video condizionati sull’azione su singoli videogiochi, permettendoti di giocare ad esempio a Doom dentro un grande modello. E Genie 2 genera videogiochi giocabili da prompt testuali. L’interfaccia generativa potrebbe ancora sembrare un’idea folle, ma non è così folle.
Ci sono enormi domande aperte su come apparirà tutto questo. Dove sarà inizialmente utile l’interfaccia generativa? Come condivideremo e distribuiremo le esperienze che creiamo collaborando con il modello, se esistono solo come contesto di un grande modello? Vorremmo davvero farlo? Quali nuovi tipi di esperienze saranno possibili? Come funzionerà tutto questo in pratica? I modelli genereranno interfacce come codice o produrranno direttamente pixel grezzi?
Non conosco ancora queste risposte. Dovremo sperimentare e scoprirlo!
Tradotto da:\ https://willwhitney.com/computing-inside-ai.htmlhttps://willwhitney.com/computing-inside-ai.html
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@ 6389be64:ef439d32
2025-02-27 21:32:12GA, plebs. The latest episode of Bitcoin And is out, and, as always, the chicanery is running rampant. Let’s break down the biggest topics I covered, and if you want the full, unfiltered rant, make sure to listen to the episode linked below.
House Democrats’ MEME Act: A Bad Joke?
House Democrats are proposing a bill to ban presidential meme coins, clearly aimed at Trump’s and Melania’s ill-advised token launches. While grifters launching meme coins is bad, this bill is just as ridiculous. If this legislation moves forward, expect a retaliatory strike exposing how politicians like Pelosi and Warren mysteriously amassed their fortunes. Will it pass? Doubtful. But it’s another sign of the government’s obsession with regulating everything except itself.
Senate Banking’s First Digital Asset Hearing: The Real Target Is You
Cynthia Lummis chaired the first digital asset hearing, and—surprise!—it was all about control. The discussion centered on stablecoins, AML, and KYC regulations, with witnesses suggesting Orwellian measures like freezing stablecoin transactions unless pre-approved by authorities. What was barely mentioned? Bitcoin. They want full oversight of stablecoins, which is really about controlling financial freedom. Expect more nonsense targeting self-custody wallets under the guise of stopping “bad actors.”
Bank of America and PayPal Want In on Stablecoins
Bank of America’s CEO openly stated they’ll launch a stablecoin as soon as regulation allows. Meanwhile, PayPal’s CEO paid for a hat using Bitcoin—not their own stablecoin, Pi USD. Why wouldn’t he use his own product? Maybe he knows stablecoins aren’t what they’re hyped up to be. Either way, the legacy financial system is gearing up to flood the market with stablecoins, not because they love crypto, but because it’s a tool to extend U.S. dollar dominance.
MetaPlanet Buys the Dip
Japan’s MetaPlanet issued $13.4M in bonds to buy more Bitcoin, proving once again that institutions see the writing on the wall. Unlike U.S. regulators who obsess over stablecoins, some companies are actually stacking sats.
UK Expands Crypto Seizure Powers
Across the pond, the UK government is pushing legislation to make it easier to seize and destroy crypto linked to criminal activity. While they frame it as going after the bad guys, it’s another move toward centralized control and financial surveillance.
Bitcoin Tools & Tech: Arc, SatoChip, and Nunchuk
Some bullish Bitcoin developments: ARC v0.5 is making Bitcoin’s second layer more efficient, SatoChip now supports Taproot and Nostr, and Nunchuk launched a group wallet with chat, making multisig collaboration easier.
The Bottom Line
The state is coming for financial privacy and control, and stablecoins are their weapon of choice. Bitcoiners need to stay focused, keep their coins in self-custody, and build out parallel systems. Expect more regulatory attacks, but don’t let them distract you—just keep stacking and transacting in ways they can’t control.
🎧 Listen to the full episode here: https://fountain.fm/episode/PYITCo18AJnsEkKLz2Ks
💰 Support the show by boosting sats on Podcasting 2.0! and I will see you on the other side.
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@ c631e267:c2b78d3e
2025-05-16 18:40:18Die zwei mächtigsten Krieger sind Geduld und Zeit. \ Leo Tolstoi
Zum Wohle unserer Gesundheit, unserer Leistungsfähigkeit und letztlich unseres Glücks ist es wichtig, die eigene Energie bewusst zu pflegen. Das gilt umso mehr für an gesellschaftlichen Themen interessierte, selbstbewusste und kritisch denkende Menschen. Denn für deren Wahrnehmung und Wohlbefinden waren und sind die rasanten, krisen- und propagandagefüllten letzten Jahre in Absurdistan eine harte Probe.
Nur wer regelmäßig Kraft tankt und Wege findet, mit den Herausforderungen umzugehen, kann eine solche Tortur überstehen, emotionale Erschöpfung vermeiden und trotz allem zufrieden sein. Dazu müssen wir erkunden, was uns Energie gibt und was sie uns raubt. Durch Selbstreflexion und Achtsamkeit finden wir sicher Dinge, die uns erfreuen und inspirieren, und andere, die uns eher stressen und belasten.
Die eigene Energie ist eng mit unserer körperlichen und mentalen Gesundheit verbunden. Methoden zur Förderung der körperlichen Gesundheit sind gut bekannt: eine ausgewogene Ernährung, regelmäßige Bewegung sowie ausreichend Schlaf und Erholung. Bei der nicht minder wichtigen emotionalen Balance wird es schon etwas komplizierter. Stress abzubauen, die eigenen Grenzen zu kennen oder solche zum Schutz zu setzen sowie die Konzentration auf Positives und Sinnvolles wären Ansätze.
Der emotionale ist auch der Bereich, über den «Energie-Räuber» bevorzugt attackieren. Das sind zum Beispiel Dinge wie Überforderung, Perfektionismus oder mangelhafte Kommunikation. Social Media gehören ganz sicher auch dazu. Sie stehlen uns nicht nur Zeit, sondern sind höchst manipulativ und erhöhen laut einer aktuellen Studie das Risiko für psychische Probleme wie Angstzustände und Depressionen.
Geben wir negativen oder gar bösen Menschen keine Macht über uns. Das Dauerfeuer der letzten Jahre mit Krisen, Konflikten und Gefahren sollte man zwar kennen, darf sich aber davon nicht runterziehen lassen. Das Ziel derartiger konzertierter Aktionen ist vor allem, unsere innere Stabilität zu zerstören, denn dann sind wir leichter zu steuern. Aber Geduld: Selbst vermeintliche «Sonnenköniginnen» wie EU-Kommissionspräsidentin von der Leyen fallen, wenn die Zeit reif ist.
Es ist wichtig, dass wir unsere ganz eigenen Bedürfnisse und Werte erkennen. Unsere Energiequellen müssen wir identifizieren und aktiv nutzen. Dazu gehören soziale Kontakte genauso wie zum Beispiel Hobbys und Leidenschaften. Umgeben wir uns mit Sinnhaftigkeit und lassen wir uns nicht die Energie rauben!
Mein Wahlspruch ist schon lange: «Was die Menschen wirklich bewegt, ist die Kultur.» Jetzt im Frühjahr beginnt hier in Andalusien die Zeit der «Ferias», jener traditionellen Volksfeste, die vor Lebensfreude sprudeln. Konzentrieren wir uns auf die schönen Dinge und auf unsere eigenen Talente – soziale Verbundenheit wird helfen, unsere innere Kraft zu stärken und zu bewahren.
[Titelbild: Pixabay]
Dieser Beitrag wurde mit dem Pareto-Client geschrieben und ist zuerst auf Transition News erschienen.
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@ e6817453:b0ac3c39
2024-12-07 15:06:43I started a long series of articles about how to model different types of knowledge graphs in the relational model, which makes on-device memory models for AI agents possible.
We model-directed graphs
Also, graphs of entities
We even model hypergraphs
Last time, we discussed why classical triple and simple knowledge graphs are insufficient for AI agents and complex memory, especially in the domain of time-aware or multi-model knowledge.
So why do we need metagraphs, and what kind of challenge could they help us to solve?
- complex and nested event and temporal context and temporal relations as edges
- multi-mode and multilingual knowledge
- human-like memory for AI agents that has multiple contexts and relations between knowledge in neuron-like networks
MetaGraphs
A meta graph is a concept that extends the idea of a graph by allowing edges to become graphs. Meta Edges connect a set of nodes, which could also be subgraphs. So, at some level, node and edge are pretty similar in properties but act in different roles in a different context.
Also, in some cases, edges could be referenced as nodes.
This approach enables the representation of more complex relationships and hierarchies than a traditional graph structure allows. Let’s break down each term to understand better metagraphs and how they differ from hypergraphs and graphs.Graph Basics
- A standard graph has a set of nodes (or vertices) and edges (connections between nodes).
- Edges are generally simple and typically represent a binary relationship between two nodes.
- For instance, an edge in a social network graph might indicate a “friend” relationship between two people (nodes).
Hypergraph
- A hypergraph extends the concept of an edge by allowing it to connect any number of nodes, not just two.
- Each connection, called a hyperedge, can link multiple nodes.
- This feature allows hypergraphs to model more complex relationships involving multiple entities simultaneously. For example, a hyperedge in a hypergraph could represent a project team, connecting all team members in a single relation.
- Despite its flexibility, a hypergraph doesn’t capture hierarchical or nested structures; it only generalizes the number of connections in an edge.
Metagraph
- A metagraph allows the edges to be graphs themselves. This means each edge can contain its own nodes and edges, creating nested, hierarchical structures.
- In a meta graph, an edge could represent a relationship defined by a graph. For instance, a meta graph could represent a network of organizations where each organization’s structure (departments and connections) is represented by its own internal graph and treated as an edge in the larger meta graph.
- This recursive structure allows metagraphs to model complex data with multiple layers of abstraction. They can capture multi-node relationships (as in hypergraphs) and detailed, structured information about each relationship.
Named Graphs and Graph of Graphs
As you can notice, the structure of a metagraph is quite complex and could be complex to model in relational and classical RDF setups. It could create a challenge of luck of tools and software solutions for your problem.
If you need to model nested graphs, you could use a much simpler model of Named graphs, which could take you quite far.The concept of the named graph came from the RDF community, which needed to group some sets of triples. In this way, you form subgraphs inside an existing graph. You could refer to the subgraph as a regular node. This setup simplifies complex graphs, introduces hierarchies, and even adds features and properties of hypergraphs while keeping a directed nature.
It looks complex, but it is not so hard to model it with a slight modification of a directed graph.
So, the node could host graphs inside. Let's reflect this fact with a location for a node. If a node belongs to a main graph, we could set the location to null or introduce a main node . it is up to youNodes could have edges to nodes in different subgraphs. This structure allows any kind of nesting graphs. Edges stay location-free
Meta Graphs in Relational Model
Let’s try to make several attempts to model different meta-graphs with some constraints.
Directed Metagraph where edges are not used as nodes and could not contain subgraphs
In this case, the edge always points to two sets of nodes. This introduces an overhead of creating a node set for a single node. In this model, we can model empty node sets that could require application-level constraints to prevent such cases.
Directed Metagraph where edges are not used as nodes and could contain subgraphs
Adding a node set that could model a subgraph located in an edge is easy but could be separate from in-vertex or out-vert.
I also do not see a direct need to include subgraphs to a node, as we could just use a node set interchangeably, but it still could be a case.Directed Metagraph where edges are used as nodes and could contain subgraphs
As you can notice, we operate all the time with node sets. We could simply allow the extension node set to elements set that include node and edge IDs, but in this case, we need to use uuid or any other strategy to differentiate node IDs from edge IDs. In this case, we have a collision of ephemeral edges or ephemeral nodes when we want to change the role and purpose of the node as an edge or vice versa.
A full-scale metagraph model is way too complex for a relational database.
So we need a better model.Now, we have more flexibility but loose structural constraints. We cannot show that the element should have one vertex, one vertex, or both. This type of constraint has been moved to the application level. Also, the crucial question is about query and retrieval needs.
Any meta-graph model should be more focused on domain and needs and should be used in raw form. We did it for a pure theoretical purpose. -
@ 2dd9250b:6e928072
2025-03-22 00:22:40Vi recentemente um post onde a pessoa diz que aquele final do filme O Doutrinador (2019) não faz sentido porque mesmo o protagonista explodindo o Palácio dos Três Poderes, não acaba com a corrupção no Brasil.
Progressistas não sabem ler e não conseguem interpretar textos corretamente. O final de Doutrinador não tem a ver com isso, tem a ver com a relação entre o Herói e a sua Cidade.
Nas histórias em quadrinhos há uma ligação entre a cidade e o Super-Herói. Gotham City por exemplo, cria o Batman. Isso é mostrado em The Batman (2022) e em Batman: Cavaleiro das Trevas, quando aquele garoto no final, diz para o Batman não fugir, porque ele queria ver o Batman de novo. E o Comissário Gordon diz que o "Batman é o que a cidade de Gotham precisa."
Batman: Cavaleiro das Trevas Ressurge mostra a cidade de Gotham sendo tomada pela corrupção e pela ideologia do Bane. A Cidade vai definhando em imoralidade e o Bruce, ao olhar da prisão a cidade sendo destruída, decide que o Batman precisa voltar porque se Gotham for destruída, o Batman é destruído junto. E isso o da forças para consegue fugir daquele poço e voltar para salvar Gotham.
Isso também é mostrado em Demolidor. Na série Demolidor o Matt Murdock sempre fala que precisa defender a cidade Cozinha do Inferno; que o Fisk não vai dominar a cidade e fazer o que ele quiser nela. Inclusive na terceira temporada isso fica mais evidente na luta final na mansão do Fisk, onde Matt grita que agora a cidade toda vai saber o que ele fez; a cidade vai ver o mal que ele é para Hell's Kitchen, porque a gente sabe que o Fisk fez de tudo para a imagem do Demolidor entrar e descrédito perante os cidadãos, então o que acontece no final do filme O Doutrinador não significa que ele está acabando com a corrupção quando explode o Congresso, ele está praticamente interrompendo o ciclo do sistema, colocando uma falha em sua engrenagem.
Quando você ouve falar de Brasília, você pensa na corrupção dos políticos, onde a farra acontece,, onde corruptos desviam dinheiro arrecadado dos impostos, impostos estes que são centralizados na União. Então quando você ouve falarem de Brasília, sempre pensa que o pessoal que mora lá, mora junto com tudo de podre que acontece no Brasil.
Logo quando o Doutrinador explode tudo ali, ele está basicamente destruindo o mecanismo que suja Brasília. Ele está fazendo isso naquela cidade. Porque o símbolo da cidade é justamente esse, a farsa de que naquele lugar o povo será ouvido e a justiça será feita. Ele está destruindo a ideologia de que o Estado nos protege, nos dá segurança, saúde e educação. Porque na verdade o Estado só existe para privilegiar os políticos, funcionários públicos de auto escalão, suas famílias e amigos. Enquanto que o povo sofre para sustentar a elite política. O protagonista Miguel entendeu isso quando a filha dele morreu na fila do SUS.
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@ b2d670de:907f9d4a
2025-02-26 18:27:47This is a list of nostr clients exposed as onion services. The list is currently actively maintained on GitHub. Contributions are always appreciated!
| Client name | Onion URL | Source code URL | Admin | Description | | --- | --- | --- | --- | --- | | Snort | http://agzj5a4be3kgp6yurijk4q7pm2yh4a5nphdg4zozk365yirf7ahuctyd.onion | https://git.v0l.io/Kieran/snort | operator | N/A | | moStard | http://sifbugd5nwdq77plmidkug4y57zuqwqio3zlyreizrhejhp6bohfwkad.onion/ | https://github.com/rafael-xmr/nostrudel/tree/mostard | operator | minimalist monero friendly nostrudel fork | | Nostrudel | http://oxtrnmb4wsb77rmk64q3jfr55fo33luwmsyaoovicyhzgrulleiojsad.onion/ | https://github.com/hzrd149/nostrudel | operator | Runs latest tagged docker image | | Nostrudel Next | http://oxtrnnumsflm7hmvb3xqphed2eqpbrt4seflgmdsjnpgc3ejd6iycuyd.onion/ | https://github.com/hzrd149/nostrudel | operator | Runs latest "next" tagged docker image | | Nsite | http://q457mvdt5smqj726m4lsqxxdyx7r3v7gufzt46zbkop6mkghpnr7z3qd.onion/ | https://github.com/hzrd149/nsite-ts | operator | Runs nsite. You can read more about nsite here. | | Shopstr | http://6fkdn756yryd5wurkq7ifnexupnfwj6sotbtby2xhj5baythl4cyf2id.onion/ | https://github.com/shopstr-eng/shopstr-hidden-service | operator | Runs the latest
serverless
branch build of Shopstr. | -
@ 06b7819d:d1d8327c
2024-12-02 20:05:48Benjamin Franklin and His Fondness for Madeira Wine
Benjamin Franklin, one of America’s most celebrated founding fathers, was not only a statesman, scientist, and writer but also a man of refined taste. Among his many indulgences, Franklin was particularly fond of Madeira wine, a fortified wine from the Portuguese Madeira Islands. His love for this drink was well-documented and reflects both his personal preferences and the broader cultural trends of 18th-century America.
The Allure of Madeira Wine
Madeira wine was highly prized in the 18th century due to its unique production process and exceptional durability. Its rich, fortified nature made it well-suited for long sea voyages, as it could withstand temperature fluctuations and aging in transit. This durability made Madeira a popular choice in the American colonies, where European wines often spoiled before arrival.
Franklin, who was known for his appreciation of fine things, embraced Madeira as a beverage of choice. Its complex flavors and storied reputation resonated with his intellectual and social pursuits. The wine was often served at dinners and social gatherings, where Franklin and his contemporaries debated ideas and shaped the future of the nation.
Franklin’s Personal Connection to Madeira
In Franklin’s writings and correspondence, Madeira is mentioned on several occasions, reflecting its prominence in his life. He referred to the wine not only as a personal pleasure but also as a symbol of hospitality and refinement. As a diplomat in France and England, Franklin often carried Madeira to share with his hosts, using it as a means of forging connections and showcasing the tastes of the American colonies.
One notable instance of Franklin’s affinity for Madeira occurred during his time in Philadelphia. He reportedly had cases of the wine shipped directly to his home, ensuring he would never be without his favorite drink. Madeira also featured prominently in many toasts and celebrations, becoming a hallmark of Franklin’s gatherings.
The Role of Madeira in Colonial America
Franklin’s fondness for Madeira reflects its broader significance in colonial America. The wine was not only a favorite of the elite but also a symbol of resistance to British taxation. When the British imposed heavy duties on imported goods, including wine, Madeira became a patriotic choice for many colonists. Its direct trade routes with the Madeira Islands circumvented British intermediaries, allowing Americans to assert their economic independence.
A Legacy of Taste
Franklin’s appreciation for Madeira wine endures as a charming detail of his multifaceted life. It offers a glimpse into the personal habits of one of America’s most influential figures and highlights the cultural exchanges that shaped colonial society. Today, Franklin’s love of Madeira serves as a reminder of the historical connections between wine, politics, and personal expression in the 18th century.
In honoring Franklin’s legacy, one might raise a glass of Madeira to toast not only his contributions to American independence but also his enduring influence on the art of living well.
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@ 4857600b:30b502f4
2025-02-21 21:15:04In a revealing development that exposes the hypocrisy of government surveillance, multiple federal agencies including the CIA and FBI have filed lawsuits to keep Samourai Wallet's client list sealed during and after trial proceedings. This move strongly suggests that government agencies themselves were utilizing Samourai's privacy-focused services while simultaneously condemning similar privacy tools when used by ordinary citizens.
The situation bears striking parallels to other cases where government agencies have hidden behind "national security" claims, such as the Jeffrey Epstein case, highlighting a troubling double standard: while average citizens are expected to surrender their financial privacy through extensive reporting requirements and regulations, government agencies claim exemption from these same transparency standards they enforce on others.
This case exemplifies the fundamental conflict between individual liberty and state power, where government agencies appear to be using the very privacy tools they prosecute others for using. The irony is particularly stark given that money laundering for intelligence agencies is considered legal in our system, while private citizens seeking financial privacy face severe legal consequences - a clear demonstration of how the state creates different rules for itself versus the people it claims to serve.
Citations: [1] https://www.bugle.news/cia-fbi-dnc-rnc-all-sue-to-redact-samourais-client-list-from-trial/
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@ 04c915da:3dfbecc9
2025-05-16 18:06:46Bitcoin has always been rooted in freedom and resistance to authority. I get that many of you are conflicted about the US Government stacking but by design we cannot stop anyone from using bitcoin. Many have asked me for my thoughts on the matter, so let’s rip it.
Concern
One of the most glaring issues with the strategic bitcoin reserve is its foundation, built on stolen bitcoin. For those of us who value private property this is an obvious betrayal of our core principles. Rather than proof of work, the bitcoin that seeds this reserve has been taken by force. The US Government should return the bitcoin stolen from Bitfinex and the Silk Road.
Using stolen bitcoin for the reserve creates a perverse incentive. If governments see bitcoin as a valuable asset, they will ramp up efforts to confiscate more bitcoin. The precedent is a major concern, and I stand strongly against it, but it should be also noted that governments were already seizing coin before the reserve so this is not really a change in policy.
Ideally all seized bitcoin should be burned, by law. This would align incentives properly and make it less likely for the government to actively increase coin seizures. Due to the truly scarce properties of bitcoin, all burned bitcoin helps existing holders through increased purchasing power regardless. This change would be unlikely but those of us in policy circles should push for it regardless. It would be best case scenario for American bitcoiners and would create a strong foundation for the next century of American leadership.
Optimism
The entire point of bitcoin is that we can spend or save it without permission. That said, it is a massive benefit to not have one of the strongest governments in human history actively trying to ruin our lives.
Since the beginning, bitcoiners have faced horrible regulatory trends. KYC, surveillance, and legal cases have made using bitcoin and building bitcoin businesses incredibly difficult. It is incredibly important to note that over the past year that trend has reversed for the first time in a decade. A strategic bitcoin reserve is a key driver of this shift. By holding bitcoin, the strongest government in the world has signaled that it is not just a fringe technology but rather truly valuable, legitimate, and worth stacking.
This alignment of incentives changes everything. The US Government stacking proves bitcoin’s worth. The resulting purchasing power appreciation helps all of us who are holding coin and as bitcoin succeeds our government receives direct benefit. A beautiful positive feedback loop.
Realism
We are trending in the right direction. A strategic bitcoin reserve is a sign that the state sees bitcoin as an asset worth embracing rather than destroying. That said, there is a lot of work left to be done. We cannot be lulled into complacency, the time to push forward is now, and we cannot take our foot off the gas. We have a seat at the table for the first time ever. Let's make it worth it.
We must protect the right to free usage of bitcoin and other digital technologies. Freedom in the digital age must be taken and defended, through both technical and political avenues. Multiple privacy focused developers are facing long jail sentences for building tools that protect our freedom. These cases are not just legal battles. They are attacks on the soul of bitcoin. We need to rally behind them, fight for their freedom, and ensure the ethos of bitcoin survives this new era of government interest. The strategic reserve is a step in the right direction, but it is up to us to hold the line and shape the future.
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@ e6817453:b0ac3c39
2024-12-07 15:03:06Hey folks! Today, let’s dive into the intriguing world of neurosymbolic approaches, retrieval-augmented generation (RAG), and personal knowledge graphs (PKGs). Together, these concepts hold much potential for bringing true reasoning capabilities to large language models (LLMs). So, let’s break down how symbolic logic, knowledge graphs, and modern AI can come together to empower future AI systems to reason like humans.
The Neurosymbolic Approach: What It Means ?
Neurosymbolic AI combines two historically separate streams of artificial intelligence: symbolic reasoning and neural networks. Symbolic AI uses formal logic to process knowledge, similar to how we might solve problems or deduce information. On the other hand, neural networks, like those underlying GPT-4, focus on learning patterns from vast amounts of data — they are probabilistic statistical models that excel in generating human-like language and recognizing patterns but often lack deep, explicit reasoning.
While GPT-4 can produce impressive text, it’s still not very effective at reasoning in a truly logical way. Its foundation, transformers, allows it to excel in pattern recognition, but the models struggle with reasoning because, at their core, they rely on statistical probabilities rather than true symbolic logic. This is where neurosymbolic methods and knowledge graphs come in.
Symbolic Calculations and the Early Vision of AI
If we take a step back to the 1950s, the vision for artificial intelligence was very different. Early AI research was all about symbolic reasoning — where computers could perform logical calculations to derive new knowledge from a given set of rules and facts. Languages like Lisp emerged to support this vision, enabling programs to represent data and code as interchangeable symbols. Lisp was designed to be homoiconic, meaning it treated code as manipulatable data, making it capable of self-modification — a huge leap towards AI systems that could, in theory, understand and modify their own operations.
Lisp: The Earlier AI-Language
Lisp, short for “LISt Processor,” was developed by John McCarthy in 1958, and it became the cornerstone of early AI research. Lisp’s power lay in its flexibility and its use of symbolic expressions, which allowed developers to create programs that could manipulate symbols in ways that were very close to human reasoning. One of the most groundbreaking features of Lisp was its ability to treat code as data, known as homoiconicity, which meant that Lisp programs could introspect and transform themselves dynamically. This ability to adapt and modify its own structure gave Lisp an edge in tasks that required a form of self-awareness, which was key in the early days of AI when researchers were exploring what it meant for machines to “think.”
Lisp was not just a programming language—it represented the vision for artificial intelligence, where machines could evolve their understanding and rewrite their own programming. This idea formed the conceptual basis for many of the self-modifying and adaptive algorithms that are still explored today in AI research. Despite its decline in mainstream programming, Lisp’s influence can still be seen in the concepts used in modern machine learning and symbolic AI approaches.
Prolog: Formal Logic and Deductive Reasoning
In the 1970s, Prolog was developed—a language focused on formal logic and deductive reasoning. Unlike Lisp, based on lambda calculus, Prolog operates on formal logic rules, allowing it to perform deductive reasoning and solve logical puzzles. This made Prolog an ideal candidate for expert systems that needed to follow a sequence of logical steps, such as medical diagnostics or strategic planning.
Prolog, like Lisp, allowed symbols to be represented, understood, and used in calculations, creating another homoiconic language that allows reasoning. Prolog’s strength lies in its rule-based structure, which is well-suited for tasks that require logical inference and backtracking. These features made it a powerful tool for expert systems and AI research in the 1970s and 1980s.
The language is declarative in nature, meaning that you define the problem, and Prolog figures out how to solve it. By using formal logic and setting constraints, Prolog systems can derive conclusions from known facts, making it highly effective in fields requiring explicit logical frameworks, such as legal reasoning, diagnostics, and natural language understanding. These symbolic approaches were later overshadowed during the AI winter — but the ideas never really disappeared. They just evolved.
Solvers and Their Role in Complementing LLMs
One of the most powerful features of Prolog and similar logic-based systems is their use of solvers. Solvers are mechanisms that can take a set of rules and constraints and automatically find solutions that satisfy these conditions. This capability is incredibly useful when combined with LLMs, which excel at generating human-like language but need help with logical consistency and structured reasoning.
For instance, imagine a scenario where an LLM needs to answer a question involving multiple logical steps or a complex query that requires deducing facts from various pieces of information. In this case, a solver can derive valid conclusions based on a given set of logical rules, providing structured answers that the LLM can then articulate in natural language. This allows the LLM to retrieve information and ensure the logical integrity of its responses, leading to much more robust answers.
Solvers are also ideal for handling constraint satisfaction problems — situations where multiple conditions must be met simultaneously. In practical applications, this could include scheduling tasks, generating optimal recommendations, or even diagnosing issues where a set of symptoms must match possible diagnoses. Prolog’s solver capabilities and LLM’s natural language processing power can make these systems highly effective at providing intelligent, rule-compliant responses that traditional LLMs would struggle to produce alone.
By integrating neurosymbolic methods that utilize solvers, we can provide LLMs with a form of deductive reasoning that is missing from pure deep-learning approaches. This combination has the potential to significantly improve the quality of outputs for use-cases that require explicit, structured problem-solving, from legal queries to scientific research and beyond. Solvers give LLMs the backbone they need to not just generate answers but to do so in a way that respects logical rigor and complex constraints.
Graph of Rules for Enhanced Reasoning
Another powerful concept that complements LLMs is using a graph of rules. A graph of rules is essentially a structured collection of logical rules that interconnect in a network-like structure, defining how various entities and their relationships interact. This structured network allows for complex reasoning and information retrieval, as well as the ability to model intricate relationships between different pieces of knowledge.
In a graph of rules, each node represents a rule, and the edges define relationships between those rules — such as dependencies or causal links. This structure can be used to enhance LLM capabilities by providing them with a formal set of rules and relationships to follow, which improves logical consistency and reasoning depth. When an LLM encounters a problem or a question that requires multiple logical steps, it can traverse this graph of rules to generate an answer that is not only linguistically fluent but also logically robust.
For example, in a healthcare application, a graph of rules might include nodes for medical symptoms, possible diagnoses, and recommended treatments. When an LLM receives a query regarding a patient’s symptoms, it can use the graph to traverse from symptoms to potential diagnoses and then to treatment options, ensuring that the response is coherent and medically sound. The graph of rules guides reasoning, enabling LLMs to handle complex, multi-step questions that involve chains of reasoning, rather than merely generating surface-level responses.
Graphs of rules also enable modular reasoning, where different sets of rules can be activated based on the context or the type of question being asked. This modularity is crucial for creating adaptive AI systems that can apply specific sets of logical frameworks to distinct problem domains, thereby greatly enhancing their versatility. The combination of neural fluency with rule-based structure gives LLMs the ability to conduct more advanced reasoning, ultimately making them more reliable and effective in domains where accuracy and logical consistency are critical.
By implementing a graph of rules, LLMs are empowered to perform deductive reasoning alongside their generative capabilities, creating responses that are not only compelling but also logically aligned with the structured knowledge available in the system. This further enhances their potential applications in fields such as law, engineering, finance, and scientific research — domains where logical consistency is as important as linguistic coherence.
Enhancing LLMs with Symbolic Reasoning
Now, with LLMs like GPT-4 being mainstream, there is an emerging need to add real reasoning capabilities to them. This is where neurosymbolic approaches shine. Instead of pitting neural networks against symbolic reasoning, these methods combine the best of both worlds. The neural aspect provides language fluency and recognition of complex patterns, while the symbolic side offers real reasoning power through formal logic and rule-based frameworks.
Personal Knowledge Graphs (PKGs) come into play here as well. Knowledge graphs are data structures that encode entities and their relationships — they’re essentially semantic networks that allow for structured information retrieval. When integrated with neurosymbolic approaches, LLMs can use these graphs to answer questions in a far more contextual and precise way. By retrieving relevant information from a knowledge graph, they can ground their responses in well-defined relationships, thus improving both the relevance and the logical consistency of their answers.
Imagine combining an LLM with a graph of rules that allow it to reason through the relationships encoded in a personal knowledge graph. This could involve using deductive databases to form a sophisticated way to represent and reason with symbolic data — essentially constructing a powerful hybrid system that uses LLM capabilities for language fluency and rule-based logic for structured problem-solving.
My Research on Deductive Databases and Knowledge Graphs
I recently did some research on modeling knowledge graphs using deductive databases, such as DataLog — which can be thought of as a limited, data-oriented version of Prolog. What I’ve found is that it’s possible to use formal logic to model knowledge graphs, ontologies, and complex relationships elegantly as rules in a deductive system. Unlike classical RDF or traditional ontology-based models, which sometimes struggle with complex or evolving relationships, a deductive approach is more flexible and can easily support dynamic rules and reasoning.
Prolog and similar logic-driven frameworks can complement LLMs by handling the parts of reasoning where explicit rule-following is required. LLMs can benefit from these rule-based systems for tasks like entity recognition, logical inferences, and constructing or traversing knowledge graphs. We can even create a graph of rules that governs how relationships are formed or how logical deductions can be performed.
The future is really about creating an AI that is capable of both deep contextual understanding (using the powerful generative capacity of LLMs) and true reasoning (through symbolic systems and knowledge graphs). With the neurosymbolic approach, these AIs could be equipped not just to generate information but to explain their reasoning, form logical conclusions, and even improve their own understanding over time — getting us a step closer to true artificial general intelligence.
Why It Matters for LLM Employment
Using neurosymbolic RAG (retrieval-augmented generation) in conjunction with personal knowledge graphs could revolutionize how LLMs work in real-world applications. Imagine an LLM that understands not just language but also the relationships between different concepts — one that can navigate, reason, and explain complex knowledge domains by actively engaging with a personalized set of facts and rules.
This could lead to practical applications in areas like healthcare, finance, legal reasoning, or even personal productivity — where LLMs can help users solve complex problems logically, providing relevant information and well-justified reasoning paths. The combination of neural fluency with symbolic accuracy and deductive power is precisely the bridge we need to move beyond purely predictive AI to truly intelligent systems.
Let's explore these ideas further if you’re as fascinated by this as I am. Feel free to reach out, follow my YouTube channel, or check out some articles I’ll link below. And if you’re working on anything in this field, I’d love to collaborate!
Until next time, folks. Stay curious, and keep pushing the boundaries of AI!
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@ 91bea5cd:1df4451c
2025-05-13 10:06:21A Realidade por Trás dos Números
Padrão de Desagregação Familiar
- Países como Brasil (~55%) e Venezuela (~65%) apresentam não apenas altos índices de mães solo, mas também contextos de violência descontrolada.
- A desagregação da família nuclear tradicional não é causa única, mas é fator agravante quando associada à instabilidade cultural, abandono paterno e permissividade institucional.
- Homens ausentes e baixa exigência de responsabilidade paterna geram ciclos de pobreza, violência e ressentimento intergeracional.
Cultura da Irresponsabilidade
- Em muitos contextos, a paternidade é tratada como um ato opcional. A ausência de consequências legais, sociais e morais para o abandono paterno normaliza o ciclo de mães solteiras.
- Políticas públicas mal calibradas muitas vezes premiam o fracasso familiar com benefícios, sem exigir contrapartidas.
Inversão de Valores
- A valorização de comportamentos hedonistas, imediatistas e instáveis, promovidos culturalmente, mina qualquer tentativa de reconstrução familiar sólida.
- Em muitos casos, a maternidade é enfrentada sem planejamento ou estrutura mínima, gerando famílias instáveis e frágeis, mais propensas à violência e vulnerabilidade social.
Recomendações Realistas e Não Assistencialistas
Reforço da Responsabilidade Paterna
- Criar mecanismos legais mais rigorosos e efetivos de responsabilização civil e criminal para pais ausentes.
- Estimular socialmente o resgate do papel paterno, valorizando não apenas a presença física, mas o compromisso emocional e financeiro.
Incentivo à Formação Familiar Estável
- Reformar o currículo escolar para incluir educação sobre vínculos afetivos, responsabilidade conjugal e parentalidade realista.
- Desestimular a glamorização de estruturas familiares instáveis, combatendo a ideia de que qualquer forma familiar é igualmente funcional sob qualquer condição.
Cultura da Autossuficiência e Planejamento
- Substituir políticas puramente assistenciais por programas de incentivo ao planejamento familiar e responsabilidade pessoal, com foco na autonomia financeira e educacional antes da maternidade/paternidade.
- Campanhas públicas de conscientização sobre os impactos reais da desestrutura familiar na violência social e no desenvolvimento infantil.
O aumento da violência em países com alta proporção de mães solteiras não é uma coincidência, mas uma consequência de fatores culturais e sociais profundamente negligenciados.
Reverter esse cenário não exige mais Estado, mas sim mais responsabilidade individual, mais cobrança social e menos permissividade institucional. Qualquer solução duradoura passa por restaurar o valor da família como núcleo formador de caráter e estabilidade, não apenas como estatística para justificar políticas públicas.
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@ 04c915da:3dfbecc9
2025-05-16 17:59:23Recently we have seen a wave of high profile X accounts hacked. These attacks have exposed the fragility of the status quo security model used by modern social media platforms like X. Many users have asked if nostr fixes this, so lets dive in. How do these types of attacks translate into the world of nostr apps? For clarity, I will use X’s security model as representative of most big tech social platforms and compare it to nostr.
The Status Quo
On X, you never have full control of your account. Ultimately to use it requires permission from the company. They can suspend your account or limit your distribution. Theoretically they can even post from your account at will. An X account is tied to an email and password. Users can also opt into two factor authentication, which adds an extra layer of protection, a login code generated by an app. In theory, this setup works well, but it places a heavy burden on users. You need to create a strong, unique password and safeguard it. You also need to ensure your email account and phone number remain secure, as attackers can exploit these to reset your credentials and take over your account. Even if you do everything responsibly, there is another weak link in X infrastructure itself. The platform’s infrastructure allows accounts to be reset through its backend. This could happen maliciously by an employee or through an external attacker who compromises X’s backend. When an account is compromised, the legitimate user often gets locked out, unable to post or regain control without contacting X’s support team. That process can be slow, frustrating, and sometimes fruitless if support denies the request or cannot verify your identity. Often times support will require users to provide identification info in order to regain access, which represents a privacy risk. The centralized nature of X means you are ultimately at the mercy of the company’s systems and staff.
Nostr Requires Responsibility
Nostr flips this model radically. Users do not need permission from a company to access their account, they can generate as many accounts as they want, and cannot be easily censored. The key tradeoff here is that users have to take complete responsibility for their security. Instead of relying on a username, password, and corporate servers, nostr uses a private key as the sole credential for your account. Users generate this key and it is their responsibility to keep it safe. As long as you have your key, you can post. If someone else gets it, they can post too. It is that simple. This design has strong implications. Unlike X, there is no backend reset option. If your key is compromised or lost, there is no customer support to call. In a compromise scenario, both you and the attacker can post from the account simultaneously. Neither can lock the other out, since nostr relays simply accept whatever is signed with a valid key.
The benefit? No reliance on proprietary corporate infrastructure.. The negative? Security rests entirely on how well you protect your key.
Future Nostr Security Improvements
For many users, nostr’s standard security model, storing a private key on a phone with an encrypted cloud backup, will likely be sufficient. It is simple and reasonably secure. That said, nostr’s strength lies in its flexibility as an open protocol. Users will be able to choose between a range of security models, balancing convenience and protection based on need.
One promising option is a web of trust model for key rotation. Imagine pre-selecting a group of trusted friends. If your account is compromised, these people could collectively sign an event announcing the compromise to the network and designate a new key as your legitimate one. Apps could handle this process seamlessly in the background, notifying followers of the switch without much user interaction. This could become a popular choice for average users, but it is not without tradeoffs. It requires trust in your chosen web of trust, which might not suit power users or large organizations. It also has the issue that some apps may not recognize the key rotation properly and followers might get confused about which account is “real.”
For those needing higher security, there is the option of multisig using FROST (Flexible Round-Optimized Schnorr Threshold). In this setup, multiple keys must sign off on every action, including posting and updating a profile. A hacker with just one key could not do anything. This is likely overkill for most users due to complexity and inconvenience, but it could be a game changer for large organizations, companies, and governments. Imagine the White House nostr account requiring signatures from multiple people before a post goes live, that would be much more secure than the status quo big tech model.
Another option are hardware signers, similar to bitcoin hardware wallets. Private keys are kept on secure, offline devices, separate from the internet connected phone or computer you use to broadcast events. This drastically reduces the risk of remote hacks, as private keys never touches the internet. It can be used in combination with multisig setups for extra protection. This setup is much less convenient and probably overkill for most but could be ideal for governments, companies, or other high profile accounts.
Nostr’s security model is not perfect but is robust and versatile. Ultimately users are in control and security is their responsibility. Apps will give users multiple options to choose from and users will choose what best fits their need.
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@ 6be5cc06:5259daf0
2025-05-12 14:50:36A posição do libertário que rejeita o cristianismo padece de sérias incoerências lógicas, históricas e filosóficas. Ao renegar as bases espirituais e culturais que tornaram possível o próprio ideal libertário, tal posição demonstra ser, ao mesmo tempo, autofágica e irracional. É o caso de alguém que se gloria dos frutos de uma árvore que corta pela raiz.
I. Fundamento histórico: a civilização da liberdade é cristã
Não foi o secularismo moderno, nem o paganismo antigo, que ergueram as instituições que protegem a dignidade da pessoa humana e os limites ao poder. Desde os primeiros séculos, a Igreja resistiu ao culto estatal romano, afirmando a soberania de Deus sobre os Césares — "Mais importa obedecer a Deus que aos homens" (Atos 5,29).
Foi o cristianismo que:
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Fundou universidades livres, onde o saber era buscado sob o primado da verdade;
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Defendeu a lei natural como fundamento do direito — uma doutrina que protege o indivíduo contra tiranias;
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Resgatou e aprofundou o conceito de pessoa, dotada de razão e livre-arbítrio, imagem de Deus, e, portanto, inalienavelmente digna e responsável.
Em momentos-chave da história, como nas disputas entre papado e império, nas resistências contra absolutismos, e na fundação do direito internacional por Francisco de Vitoria e a Escola de Salamanca, foi o cristianismo quem freou o poder estatal em nome de princípios superiores. A tradição cristã foi frequentemente o principal obstáculo à tirania, não seu aliado.
Negar isso é amputar a própria genealogia da liberdade ocidental.
Uma das chaves do cristianismo para a construção dessa civilização da liberdade foi a exaltação do individualismo. Ao afirmar que o ser humano é feito à imagem de Deus e que sua salvação é uma escolha pessoal, o cristianismo colocou o indivíduo no centro da moralidade e da liberdade. Diferente dos gregos, cuja ética era voltada para a polis e a cidade-estado, o cristianismo reafirma a suprema importância do indivíduo, com sua capacidade de escolha moral, responsabilidade pessoal e dignidade intrínseca. Esse princípio, mais do que qualquer outra religião, foi o alicerce do desenvolvimento da liberdade individual e da autonomia, valores que sustentam a civilização ocidental.
A ética grega, na melhor das hipóteses, descreve a ordem natural — mas não consegue justificar por que essa ordem deveria obrigar a vontade humana. Um Logos impessoal não tem autoridade moral. Uma ordem cósmica sem um Legislador é apenas um dado de fato, não uma norma vinculante. A vontade pode rebelar-se contra o telos — e sem um Deus justo, que ordena a natureza à perfeição, não há razão última para não o fazer.
A cultura grega teve uma influência indiscutível sobre o desenvolvimento da civilização ocidental, mas o cristianismo não só absorveu o que havia de bom na cultura grega, como também elevou e completou esses aspectos. O cristianismo, ao afirmar que todos os homens são feitos à imagem e semelhança de Deus e têm dignidade intrínseca, levou a uma noção de igualdade moral e liberdade que transcende as limitações da pólis grega.
II. Falsa dicotomia: fé e liberdade não são opostas
Com frequência equiparam a religião à coerção e à obediência cega. Mas isso é um equívoco: o cristianismo não se impõe pela força, mas apela à consciência. O próprio Deus, em sua relação com a criatura racional, respeita sua liberdade. Como ensina a Escritura:
"Se alguém quiser vir após mim..." (Mt 16,24);
"Eis que estou à porta e bato. Se alguém ouvir a minha voz e abrir a porta, entrarei em sua casa e cearei com ele." (Ap 3,20);
"Assim falai, e assim procedei, como devendo ser julgados pela lei da liberdade." (Tiago 2,12).A adesão à fé deve ser livre, voluntária e racional, pois sem liberdade não há verdadeiro mérito, nem amor genuíno. Isso é mais compatível com o princípio de não agressão do que qualquer utopia secular. Ora, o núcleo do evangelho é voluntarista: salvação pessoal, conversão interior, caridade.
Ninguém deve ser forçado, contra sua vontade, a abraçar a fé, pois o ato de fé é por sua natureza voluntário (Dignitatis Humanae; CDC, cân. 748,2)
Se algum Estado usa da força para impor o cristianismo, afirmar que o cristianismo causou as coerções é tão equivocado quanto dizer que a propriedade privada causa o comunismo; é uma inversão da realidade, pois o comunismo surge precisamente da violação da propriedade. Portanto, a fé forçada é inválida em si mesma, pois viola a natureza do ato de crer, que deve ser livre.
III. Fundamento moral: sem transcendência, o libertarianismo flutua no vácuo
O libertário anticristão busca defender princípios objetivos — como a inviolabilidade do indivíduo e a ilegitimidade da agressão — sem um fundamento transcendente que lhes dê validade universal. Por que a agressão é errada? Por que alguém tem direito à vida, à liberdade, à propriedade? Sem uma explicação transcendental, as respostas para tais perguntas se tornam apenas opiniões ou convenções, não obrigações morais vinculantes. Se a moralidade é puramente humana, então os direitos podem ser modificados ou ignorados conforme a vontade da sociedade. O conceito de direitos naturais, tão caro ao libertarianismo, precisa de um solo metafísico que justifique sua universalidade e imutabilidade. Caso contrário, eles podem ser tratados apenas como acordos utilitários temporários ou preferências culturais, sem qualquer obrigatoriedade para todos os seres humanos em todas as circunstâncias.
Pensadores libertários seculares, como Ayn Rand e Murray Rothbard, tentaram ancorar os direitos naturais na razão humana ou na natureza do homem. Rand baseia sua ética no egoísmo racional, enquanto Rothbard apela à lei natural. Embora essas abordagens busquem objetividade, elas carecem de uma resposta definitiva para por que a razão ou a natureza humana obrigam moralmente todos os indivíduos. Sem um fundamento transcendente, suas concepções permanecem vulneráveis a interpretações subjetivas ou a cálculos utilitários.
Aqui, o cristianismo oferece uma explicação sólida e transcendental que fundamenta os direitos naturais. A visão cristã de que o ser humano foi criado à imagem e semelhança de Deus confere à pessoa uma dignidade intrínseca, imutável e universal. Essa dignidade não depende de fatores externos, como consenso social ou poder político, mas é uma característica inerente ao ser humano pela sua criação divina. A partir dessa perspectiva teológica, torna-se possível afirmar com base sólida que os direitos naturais são dados por Deus e, portanto, são universais e vinculantes.
O cristianismo também é a base de um sistema moral que distingue claramente justiça de legalidade. O Estado pode criar leis, mas isso não significa que essas leis sejam justas. A justiça, sob a ótica cristã, é uma expressão da ordem moral objetiva, algo que transcende as leis humanas e é definido pela vontade divina. Por isso, o libertarianismo cristão vê a agressão como uma violação de uma ordem moral objetiva, e não apenas uma violação de uma convenção social ou de um acordo utilitário.
Se a moralidade e os direitos naturais não forem fundamentados em um Logos criador e legislador, o que acontece é que o conceito de direito natural degenera para algo mais frágil, como um simples acordo utilitário. Nesse cenário, os direitos do indivíduo se tornam algo acordado entre os membros de uma sociedade, em vez de princípios imutáveis e universais. Os direitos podem ser negociados, alterados ou ignorados conforme o interesse do momento.
IV. Fundamento científico: a racionalidade moderna é filha da fé cristã
A ciência moderna só foi possível no contexto cultural cristão. Nenhuma outra civilização — nem a grega, nem a islâmica, nem a chinesa — produziu o método científico como o Ocidente cristão o fez.
Isso se deve a quatro premissas teológicas:
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Criação racional: O mundo é ordenado por um Deus racional.
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Distinção entre Criador e criatura: A natureza não é divina e pode ser estudada sem sacrilégio.
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Valor do trabalho e da observação empírica, herdado do monaquismo.
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Autonomia institucional, presente nas universidades medievais.
A doutrina cristã da Criação ex nihilo ensina que o mundo foi criado por um Deus racional, sábio e pessoal. Portanto, o cosmos é ordenado, possui leis, e pode ser compreendido pela razão humana — que é imagem do Criador. Isso contrasta fortemente com as cosmovisões panteístas ou mitológicas, onde o mundo é cíclico, arbitrário ou habitado por forças caprichosas.
Sem essa fé no Logos criador, não há razão para crer que a natureza tenha uma ordem inteligível universal e constante, que pode ser descoberta por observação e dedução. A ciência moderna só é possível porque, antes de investigar a natureza, pressupôs-se que ela era investigável — e isso foi uma herança direta do pensamento cristão.
Homens como Bacon, Newton, Kepler e Galileu viam na ciência um modo de glorificar o Criador. O ateísmo cientificista é, portanto, parasitário da teologia cristã, pois toma seus frutos e rejeita suas raízes. A ciência moderna nasceu como filha legítima da fé cristã. E os que hoje a usam contra sua mãe, ou são ingratos, ou ignorantes.
V. O cristianismo como barreira à revolução cultural
O cristianismo é a barreira mais sólida contra a infiltração revolucionária. A chamada "marcha gramsciana", que visa corroer os fundamentos morais da sociedade para subjugar o indivíduo ao coletivo, encontra sua resistência mais firme nos princípios cristãos. A fé cristã, ao proclamar a existência de uma verdade objetiva, de uma lei moral imutável e de uma dignidade humana que transcende o Estado e o consenso social, imuniza a civilização contra o relativismo e o igualitarismo nivelador do marxismo cultural.
Além disso, o cristianismo é uma tradição milenar, profundamente enraizada no cotidiano das pessoas, não sendo uma novidade a ser imposta ou implementada, mas uma força presente há séculos, que permeia a estrutura social, moral e cultural da sociedade. Sua presença constante nas comunidades, desde os tempos mais antigos, oferece uma resistência robusta contra qualquer tentativa de subverter a ordem natural e moral estabelecida.
Não por acaso, tanto Karl Marx quanto Antonio Gramsci identificaram no cristianismo o principal obstáculo à realização de seus projetos revolucionários. Marx chamou a religião de "ópio do povo" porque sabia que uma alma ancorada em Deus não se submete facilmente ao poder terreno; Gramsci, mais sutil, propôs a destruição da cultura cristã como pré-condição para o triunfo do socialismo. Sem essa âncora transcendente, a sociedade torna-se presa fácil das engenharias sociais que pretendem redefinir arbitrariamente o homem, a família e a liberdade.
Conclusão
O libertário anticristão, consciente ou não, nega as fundações mesmas do edifício que habita. Ao rejeitar o cristianismo, cava o abismo sob os próprios pés, privando o ideal libertário de sua base moral, cultural e racional. Ele defende a ética voluntária, a liberdade individual e a ordem espontânea, mas sem o solo metafísico e histórico que torna esses princípios inteligíveis e possíveis. É um erro tentar preservar a liberdade em termos absolutos sem reconhecer as raízes cristãs que a sustentam, pois o cristianismo é a única tradição que a legitima e a viabiliza.
Negar o cristianismo é racionalmente insustentável. A liberdade, como a conhecemos, é filha da fé cristã, que oferece a base moral e metafísica que torna a liberdade tanto desejável quanto possível. Mesmo que ateu, o libertário que ama a liberdade deveria, no mínimo, respeitar — e, idealmente, redescobrir — essas raízes cristãs. Pois sem fé, restam apenas o niilismo e o relativismo, que, eventualmente, desaguam na servidão.
Como nos ensina a tradição: Ubi fides ibi libertas — onde há fé, há liberdade.
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@ 7e538978:a5987ab6
2025-05-20 14:55:07Chain Duel, a fast paced PvP game that takes inspiration from the classic snake game and supercharges it with Bitcoin’s Lightning Network. Imagine battling another player for dominance in a race to collect blocks, where the length of your chain isn’t just a visual cue. It represents real, staked satoshis. The player with the most Proof of Work wins, but it’s not just about gameplay; it’s about the seamless integration of the Lightning Network and real-time payments.
But how does Chain Duel manage these instant transactions with such efficiency? That’s where LNbits comes in. LNbits, an open-source wallet and payment infrastructure, handles all in-game payments making it easy for developers to focus on gameplay while LNbits takes care of everything from microtransactions to automated splits for developers and designers. In this article, we’ll dive deep into how Chain Duel leverages LNbits to streamline in-game payments and how other developers can take advantage of this powerful toolset to build the future of Lightning-powered gaming.
Let’s explore how LNbits transforms payment processing and why it’s quickly becoming a must-have for game developers working in the Bitcoin space.
Overview of Chain Duel
Chain Duel is a unique Lightning Network-inspired game that reimagines the classic snake game with a competitive twist, integrating real-time payments. Two players face off in real-time, racing to "catch" blocks and extend their chains. Each block added to the chain represents Proof of Work, and the player with the most Proof of Work wins the duel. The stakes are high, as the game represents satoshis (small units of Bitcoin) as points, with the winner taking home the prize.
The game is designed to be Lightning-native, meaning all payments within Chain Duel are processed through the Lightning Network. This ensures fast payments, reducing latency and making gameplay smooth. With additional features like practice mode, tournaments and highscores, Chain Duel creates an engaging and competitive environment for Bitcoin enthusiasts and gamers alike.
One of the standout aspects of Chain Duel is its deeper integration with the Lightning Network even at a design level. For example, actual Bitcoin blocks can appear on screen during matches, offering bonus points when mined in sync with the game. The game’s current version, still in beta, has already drawn attention within the Bitcoin community, gaining momentum at conferences and with a growing user base through its social networks. With its innovative combination of gaming, the Lightning Network, and competitive play, Chain Duel offers a glimpse into the future of Lightning-based gaming.
How LNbits is Used in Chain Duel
Seamless Integration with LNbits
At the core of Chain Duel’s efficient payment processing is LNbits, which handles in-game transactions smoothly and reliably. Chain Duel uses the LNbits LNURL-pay and LNURL-withdraw extensions to manage payments and rewards between players. Before each match, players send satoshis using LNURL-pay, which generates a static QR code or link for making the payment. LNURL-pay allows users to attach a note to the payment, which Chain Duel creatively uses as a way to insert the player name in-game. The simplicity of LNURL-pay ensures that users can quickly and easily initiate games, with fresh invoices being issued for every game. When players win, LNURL-withdraw enables them to seamlessly pull their earnings from the game, providing a quick payout system.
These extensions make it easy for players to send and receive Bitcoin with minimal latency, fully leveraging the power of the Lightning Network for fast and low-cost payments. The flexibility of LNbits’ tools means that game developers don’t need to worry about building custom payment systems from scratch—they can rely on LNbits to handle all financial transactions with precision.
Lightning Tournaments
Chain Duel tournaments leverage LNbits and its LNURL extensions to create a seamless and efficient experience for players. In Chain Duel tournaments, LNbits plays a crucial role in managing the overall economics. LNbits facilitates the generation of LNURL QR codes that participants can scan to register quickly or withdraw their winnings. LNbits allows Chain Duel to automatically handle multiple registrations through LNURL-pay, enabling players to participate in the tournament without additional steps. The Lightning Network's speed ensures that these payments occur in real-time, reducing wait times and allowing for a smoother flow in-game.
Splitting Payments
LNbits further simplifies revenue-sharing within Chain Duel. This feature allows the game to automatically split the satoshis sent by players into different shares for the game’s developer, designer, and host. Each time a payment is made to join a match, LNbits is used to automattically pay each of the contributors, according to pre-defined rules. This automated process ensures that everyone involved in the development and running of the game gets their fair share without manual intervention or complex bookkeeping.
Nostr Integration
Chain Duel also integrates with Nostr, a decentralized protocol for social interactions. Players can join games using "Zaps", small tips or micropayments sent over the Lightning Network within the Nostr ecosystem. Through NIP-57, which enables Nostr clients to request Zap invoices, players can use LNURL-pay enabled Zaps to register in P2P matches, further enhancing the Chain Duel experience. By using Zaps as a way to register in-game, Chain Duel automates the process of fetching players' identity, creating a more competitive and social experience. Zaps are public on the Nostr network, further expanding Chain Duel's games social reach and community engagement.
Game and Payment Synchronization
One of the key reasons Chain Duel developers chose LNbits is its powerful API that connects directly with the game’s logic. LNbits allows the game to synchronize payments with gameplay in real-time, providing a seamless experience where payments are an integrated part of the gaming mechanics.
With LNbits managing both the payment process and the Lightning Network’s complex infrastructure, Chain Duel developers are free to concentrate on enhancing the competitive and Lightning Network-related aspects of the game. This division of tasks is essential for streamlining development while still providing an innovative in-game payment experience that is deeply integrated with the Bitcoin network.
LNbits proves to be an indispensable tool for Chain Duel, enabling smooth in-game transactions, real-time revenue sharing, and seamless integration with Nostr. For developers looking to build Lightning-powered games, LNbits offers a powerful suite of tools that handle everything from micropayments to payment distribution—ensuring that the game's focus remains on fun and competition rather than complex payment systems.
LNBits facilitating Education and Adoption
This system contributes to educating users on the power of the Lightning Network. Since Chain Duel directly involve real satoshis and LNURL for registration and rewards, players actively experience how Lightning can facilitate fast, cheap, and permissionless payments. By incorporating LNbits into Chain Duel, the game serves as an educational tool that introduces users to the benefits of the Lightning Network. Players gain direct experience using Lightning wallets and LNURL, helping them understand how these tools work in real-world scenarios. The near-instant nature of these payments showcases the power of Lightning in a practical context, highlighting its potential beyond just gaming. Players are encouraged to set up wallets, explore the Lightning ecosystem, and eventually become familiar with Bitcoin and Lightning technology. By integrating LNbits, Chain Duel transforms in-game payments into a learning opportunity, making Bitcoin and Lightning more approachable for users worldwide.
Tools for Developers
LNbits is a versatile, open-source platform designed to simplify and enhance Bitcoin Lightning Network wallet management. For developers, particularly those working on Lightning-native games like Chain Duel, LNbits offers an invaluable set of tools that allow for seamless integration of Lightning payments without the need to build complex custom solutions from scratch. LNbits is built on a modular and extensible architecture, enabling developers to easily add or create functionality suited to their project’s needs.
Extensible Architecture for Customization
At the core of LNbits is a simple yet powerful wallet system that developers can access across multiple devices. What makes LNbits stand out is its extensible nature—everything beyond the core functionality is implemented as an extension. This modular approach allows users to customize their LNbits installation by enabling or building extensions to suit specific use cases. This flexibility is perfect for developers who want to add Lightning-based services to their games or apps without modifying the core codebase.
- Extensions for Every Use Case
LNbits comes with a wide array of built-in extensions created by contributors, offering various services that can be plugged into your application. Some popular extensions include: - Faucets: Distribute small amounts of Bitcoin to users for testing or promotional purposes.
- Paylinks: Create shareable links for instant payments.
- Points-of-sale (PoS): Allow users to set up shareable payment terminals.
- Paywalls: Charge users to access content or services.
- Event tickets: Sell tickets for events directly via Lightning payments.
- Games and services: From dice games to jukeboxes, LNbits offers entertaining and functional tools.
These ready-made solutions can be adapted and used in different gaming scenarios, for example in Chain Duel, where LNURL extensions are used for in game payments. The extensibility ensures developers can focus on building engaging gameplay while LNbits handles payment flows.
Developer-Friendly Customization
LNbits isn't just a plug-and-play platform. Developers can extend its functionality even further by creating their own extensions, giving full control over how the wallet system is integrated into their games or apps. The architecture is designed to make it easy for developers to build on top of the platform, adding custom features for specific requirements.
Flexible Funding Source Management
LNbits also offers flexibility in terms of managing funding sources. Developers can easily connect LNbits to various Lightning Network node implementations, enabling seamless transitions between nodes or even different payment systems. This allows developers to switch underlying funding sources with minimal effort, making LNbits adaptable for games that may need to scale quickly or rely on different payment infrastructures over time.
A Lean Core System for Maximum Efficiency
Thanks to its modular architecture, LNbits maintains a lean core system. This reduces complexity and overhead, allowing developers to implement only the features they need. By avoiding bloated software, LNbits ensures faster transactions and less resource consumption, which is crucial in fast-paced environments like Chain Duel where speed and efficiency are paramount.
LNbits is designed with developers in mind, offering a suite of tools and a flexible infrastructure that makes integrating Bitcoin payments easy. Whether you’re developing games, apps, or any service that requires Lightning Network transactions, LNbits is a powerful, open-source solution that can be adapted to fit your project.
Conclusion
Chain Duel stands at the forefront of Lightning-powered gaming, combining the excitement of competitive PvP with the speed and efficiency of the Lightning Network. With LNbits handling all in-game payments, from microtransactions to automated revenue splits, developers can focus entirely on crafting an engaging gaming experience. LNbits’ powerful API and extensions make it easy to manage real-time payments, removing the complexity of building payment infrastructure from scratch.
LNbits isn’t just a payment tool — it’s a flexible, developer-friendly platform that can be adapted to any gaming model. Whether you're developing a fast-paced PvP game like Chain Duel or any project requiring seamless Lightning Network integration, LNbits provides the ideal solution for handling instant payments with minimal overhead.
For developers interested in pushing the boundaries of Lightning-powered gaming, Chain Duel is a great example of how LNbits can enhance your game, letting you focus on the fun while LNbits manages real-time transactions.
Find out more
Curious about how Lightning Network payments can power your next game? Explore the following:
- Learn more about Chain Duel: Chain Duel
- Learn how LNbits can simplify payment handling in your project: LNbits
- Dive into decentralized communication with Nostr: Nostr
- Extensions for Every Use Case
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@ 6e0ea5d6:0327f353
2025-02-21 18:15:52"Malcolm Forbes recounts that a lady, wearing a faded cotton dress, and her husband, dressed in an old handmade suit, stepped off a train in Boston, USA, and timidly made their way to the office of the president of Harvard University. They had come from Palo Alto, California, and had not scheduled an appointment. The secretary, at a glance, thought that those two, looking like country bumpkins, had no business at Harvard.
— We want to speak with the president — the man said in a low voice.
— He will be busy all day — the secretary replied curtly.
— We will wait.
The secretary ignored them for hours, hoping the couple would finally give up and leave. But they stayed there, and the secretary, somewhat frustrated, decided to bother the president, although she hated doing that.
— If you speak with them for just a few minutes, maybe they will decide to go away — she said.
The president sighed in irritation but agreed. Someone of his importance did not have time to meet people like that, but he hated faded dresses and tattered suits in his office. With a stern face, he went to the couple.
— We had a son who studied at Harvard for a year — the woman said. — He loved Harvard and was very happy here, but a year ago he died in an accident, and we would like to erect a monument in his honor somewhere on campus.— My lady — said the president rudely —, we cannot erect a statue for every person who studied at Harvard and died; if we did, this place would look like a cemetery.
— Oh, no — the lady quickly replied. — We do not want to erect a statue. We would like to donate a building to Harvard.
The president looked at the woman's faded dress and her husband's old suit and exclaimed:
— A building! Do you have even the faintest idea of how much a building costs? We have more than seven and a half million dollars' worth of buildings here at Harvard.
The lady was silent for a moment, then said to her husband:
— If that’s all it costs to found a university, why don’t we have our own?
The husband agreed.
The couple, Leland Stanford, stood up and left, leaving the president confused. Traveling back to Palo Alto, California, they established there Stanford University, the second-largest in the world, in honor of their son, a former Harvard student."
Text extracted from: "Mileumlivros - Stories that Teach Values."
Thank you for reading, my friend! If this message helped you in any way, consider leaving your glass “🥃” as a token of appreciation.
A toast to our family!
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@ a5ee4475:2ca75401
2025-05-07 20:00:42lista #descentralismo #comunidades #portugues
[em atualização]
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Ciência:
n/Astronomia - Espaço e astros (por: nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpzpmhxue69uhkummnw3ezumt0d5hsz9mhwden5te0wfjkccte9ehx7um5wghxyctwvshsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0s8pkkr ) nostr:naddr1qq9yzum5wfhkummdd9ssz9thwden5te0dehhxarj9ehhsarj9ejx2a30qgs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgrqsqqpphkkdel5t
n/Mecatrônica-NOSTR (por: nostr:nprofile1qqsyw3rqynrlkstywlk3gmlhvk4tcehpyahwktrqcczegaqt53vl7kcpg3mhxw309ahhsarjv3jhvctkxc685d35093rw7pkwf4xwdrww3a8z6ngv4jx6dtzx4ax5ut4d36kw6mwdpa8ydpkdeunyutzv9jzummwd9hkutcpg3mhxw309uex5umwd35xvmn9d35kwdtpvdcnv6tpvdukgmt6v33xgmt8xau8watwd568smpkw9mkyan6v93hwdrvwaex5mtv09jzummwd9hkutcpg4mhxue69uhhx6m60fhrvcmfd4nxga34v5e8q6r2vv68ju34wcmkj6mz0p6xudtxxajxkamwx43nwa35xa6xgat6d33x7um3d4ckgtn0de5k7m304dlxq4) nostr:naddr1qqfy6etrv9689sa5de5kxcfdfe84x4zjqythwumn8ghj76twvfhhstnp0faxzmt09ehx2ap0qgsyw3rqynrlkstywlk3gmlhvk4tcehpyahwktrqcczegaqt53vl7kcrqsqqpphkgsy84w
n/Antropologystr - Antropologia (por: nostr:npub1fyd0awkakq4aap70ual7mtlszjle9krffgwnsrkyua2frzmysd8qjj8gvg ) nostr:naddr1qq85zmn5dpex7ur0d3hkw7tnw3eqygzfrtlt4hds900g0nl80lk6luq5h7fds622r5uqa3882jgckeyrfcpsgqqqsmmq4xrrgc
Cultura:
n/Estante-Nostr - Literatura e livros (por: nostr:nprofile1qqsdl72sxdne0yqwa7tpznlnc4yt5t9jf8htspnynrja92dcschm7sqpr4mhxue69uhkummnw3ez6vp39eukz6mfdphkumn99e3k7mf0qywhwumn8ghj7mn0wd68ytfsxgh8jcttd95x7mnwv5hxxmmd9uq37amnwvaz7tmwdaehgu3dxqejuer0wfskvctrw3hhy7fwdaexwtcjwfqr2) nostr:naddr1qqx52um5v9h8ge2lfehhxarjqgsdl72sxdne0yqwa7tpznlnc4yt5t9jf8htspnynrja92dcschm7sqrqsqqpphkwzdgct
n/Literatura-Arte-Cultura (por: nostr:nprofile1qqs92lr9pdcqnulddvzgj5twpz8ysdv7njhxagyxwtnlj8p3kpxxs9cprfmhxue69uhhq7tjv9kkjepwve5kzar2v9nzucm0d5hsz9nhwden5te0v4jx2m3wdehhxarj9ekxzmny9uqsuamnwvaz7tmwdaejumr0dshs8l9z0j) nostr:naddr1qqt5c6t5v4exzar4wfsj6stjw3jj6sm4d3682unpqgs92lr9pdcqnulddvzgj5twpz8ysdv7njhxagyxwtnlj8p3kpxxs9crqsqqpphkty54um
n/História-e-Filosofia (por: nostr:npub1ne99yarta29qxnsp0ssp6cpnnqmtwl8cvklenfcsg2fantuvf0zqmpxjxk ) nostr:naddr1qqjlp8u85lcflpahfpy4x4xrjdfyjsfdg5k5vj2vfaf573jfg8cflrum7z0cezczyz0y55n5d04g5q6wq97zq8tqxwvrddmulpjmlxd8zppf8kd0339ugqcyqqqgdas35g9vs
n/Urbanism - Urbanismo (por: nostr:nprofile1qqstwrymlvj5kcrjspppyepmavrhk6afg9sfa4q9zhvmzztp6am83xgpr9mhxue69uhhyetvv9ujuumwdae8gtnnda3kjctv9u2dla7c) nostr:naddr1qqy92unzv9hxjumdqgstwrymlvj5kcrjspppyepmavrhk6afg9sfa4q9zhvmzztp6am83xgrqsqqpphkyl5u8a
Fé:
n/Religião-e-Teologia - Cristianismo (por: nostr:nprofile1qqsfujjjw3474zsrfcqhcgqavqeesd4h0nuxt0ue5ugy9y7e47xyh3qppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7mn0wd68ytn00p68ytnyv4mz7qgswaehxw309ahx7um5wghx6mmd9u2egtmk) nostr:naddr1qqs0p8u85lcflpah2fz5cj28f8pcxnedg5k4g320f385wj2p7z0ehyqzyz0y55n5d04g5q6wq97zq8tqxwvrddmulpjmlxd8zppf8kd0339ugqcyqqqgdasta04x5
n/Ateismo-e-Agnosticismo (por: nostr:nprofile1qqsw4jww99ykxf2jy4wyh685hp7cs70texztv0p7kqa3mqhfrvvdtscpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpzpmhxue69uhkummnw3ezumt0d5hsz8rhwden5te0wfjkccte9emkj6mfveex2etyd9sju7re0ghsftvmn0 e nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qy08wumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wshsz9thwden5te0wfjkccte9ehx7um5wghxyee0vnwevs) nostr:naddr1qqtyzar9d9ek6medv5k5zemwdaehg6trd9ek6mczyr4vnn3ff93j2539t3973a9c0ky8n67fsjmrc04s8vwc96gmrr2uxqcyqqqgdasuuzmw8
n/Budismo (por: nostr:nprofile1qqsw4jww99ykxf2jy4wyh685hp7cs70texztv0p7kqa3mqhfrvvdtscpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpzpmhxue69uhkummnw3ezumt0d5hsz8rhwden5te0wfjkccte9emkj6mfveex2etyd9sju7re0ghsftvmn0 e nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qy08wumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wshsz9thwden5te0wfjkccte9ehx7um5wghxyee0vnwevs) nostr:naddr1qqr5yatyd9ek6mczyr4vnn3ff93j2539t3973a9c0ky8n67fsjmrc04s8vwc96gmrr2uxqcyqqqgdas0kmt4m
n/Taoismo - Daoismo (por: nostr:nprofile1qqsw4jww99ykxf2jy4wyh685hp7cs70texztv0p7kqa3mqhfrvvdtscpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpzpmhxue69uhkummnw3ezumt0d5hsz8rhwden5te0wfjkccte9emkj6mfveex2etyd9sju7re0ghsftvmn0 e nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qy08wumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wshsz9thwden5te0wfjkccte9ehx7um5wghxyee0vnwevs) nostr:naddr1qqy9gct0cwkhxmt0qy88wumn8ghj7mn0wvhxcmmv9upzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqvzqqqyx7crkzqvd
n/Espiritualidade - Significação e sublimidade (por: nostr:nprofile1qqsw4jww99ykxf2jy4wyh685hp7cs70texztv0p7kqa3mqhfrvvdtscpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpzpmhxue69uhkummnw3ezumt0d5hsz8rhwden5te0wfjkccte9emkj6mfveex2etyd9sju7re0ghsftvmn0 e nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qy08wumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wshsz9thwden5te0wfjkccte9ehx7um5wghxyee0vnwevs) nostr:naddr1qq852umsd9exjar4v9kxjerpv3jszyrhwden5te0dehhxarj9ekk7mf0qgsw4jww99ykxf2jy4wyh685hp7cs70texztv0p7kqa3mqhfrvvdtscrqsqqpphkxa5nfy
Entretenimento:
n/Equinox - Cinema no Nostr (por: nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpzpmhxue69uhkummnw3ezumt0d5hsz9mhwden5te0wfjkccte9ehx7um5wghxyctwvshsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0s8pkkr) nostr:naddr1qqr52ut4d9hx77qpremhxue69uhkummnw3ez6ur4vgh8wetvd3hhyer9wghxuet59upzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqvzqqqyx7cmc79n5
n/Rock/metal - Músicas Rock e Metal (por: nostr:nprofile1qqs9nyy7ctpy334n3p7gh4p93lmj2cch8ae8jgjsp8al2g32stdnpdcpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpr9mhxue69uhhyetvv9ujumn0wd68ytnrdakjuct49us57cz4 e nostr:nprofile1qqsfujjjw3474zsrfcqhcgqavqeesd4h0nuxt0ue5ugy9y7e47xyh3qpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz9mhwden5te0wfjkccte9ec8y6tdv9kzumn9wshszrnhwden5te0dehhxtnvdakz748t750 ) nostr:naddr1qq99ymmrdvh56et5v9kqzqqzypvep8kzcfyvdvug0j9agfv07ujkx9elwfujy5qfl06jy25zmvctwqcyqqqgdas306zj5
n/Música-Cinema-e-Livros (por: nostr:nprofile1qqsfujjjw3474zsrfcqhcgqavqeesd4h0nuxt0ue5ugy9y7e47xyh3qppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7mn0wd68ytn00p68ytnyv4mz7qgswaehxw309ahx7um5wghx6mmd9u2egtmk) nostr:naddr1qq4lp8u85lcflpahfhpe556fgdqj6s6ffez56sfdyck5cj2k2f848uyl366lp8unhhcflyu6qgsfujjjw3474zsrfcqhcgqavqeesd4h0nuxt0ue5ugy9y7e47xyh3qrqsqqpphkfyz9pf
n/Lugares-e-Viagens (por: nostr:nprofile1qqsfujjjw3474zsrfcqhcgqavqeesd4h0nuxt0ue5ugy9y7e47xyh3qppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7mn0wd68ytn00p68ytnyv4mz7qgswaehxw309ahx7um5wghx6mmd9u2egtmk) nostr:naddr1qqjlp8u85lcflpahf325ws2jg4fj63fd2ey5z369feflp8uv3mcflryd7z0cercpqqpzp8j22f6xh652qd8qzlpqr4sr8xpkka70sedlnxn3qs5nmxhccj7yqvzqqqyx7c965gfw
n/MídiasPerdidas - Lost Media (por: nostr:nprofile1qqsfujjjw3474zsrfcqhcgqavqeesd4h0nuxt0ue5ugy9y7e47xyh3qppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7mn0wd68ytn00p68ytnyv4mz7qgswaehxw309ahx7um5wghx6mmd9u2egtmk) nostr:naddr1qqw0p8u85lcflpahfhpc63zfg9fj65z92fzyj3zp20cflfusqgsfujjjw3474zsrfcqhcgqavqeesd4h0nuxt0ue5ugy9y7e47xyh3qrqsqqpphkdltjpa
n/Football - Futebol (Por: nostr:nprofile1qqsyjxh7htwmq277sl87wlld4lcpf0ujmp5558fcpmzww4y33djgxnsppemhxue69uhkummn9ekx7mp0qywhwumn8ghj7mn0wd68ytnzd96xxmmfdejhytnnda3kjctv9uq32amnwvaz7tmjv4kxz7fwv3sk6atn9e5k7tc9l2d6x / Moderadores: nostr:nprofile1qqsx5rzeds2gf6hzaqf35qc0y6v5fys72fsec8w3gwszn3jw5mxewvgpz4mhxue69uhkummnw3ezummcw3ezuer9wchszrnhwden5te0dehhxtnvdakz7qgswaehxw309ahx7um5wghx6mmd9u5c2kxa & nostr:nprofile1qqspxhftq9htg9njgaefr6nmetl97q8qqlwxvynppl6c5zr9t0qmp9gpzfmhxue69uhhqatjwpkx2urpvuhx2ucpz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3qamnwvaz7tmwdaehgu3wwa5kueguy3tt5) nostr:naddr1qqyxvmm0w33xzmrvqgsyjxh7htwmq277sl87wlld4lcpf0ujmp5558fcpmzww4y33djgxnsrqsqqpphkg0nfw5
n/Formula-1 (por: nostr:nprofile1qqsfujjjw3474zsrfcqhcgqavqeesd4h0nuxt0ue5ugy9y7e47xyh3qppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7mn0wd68ytn00p68ytnyv4mz7qgswaehxw309ahx7um5wghx6mmd9u2egtmk) nostr:naddr1qqy5vmmjd46kccfdxypzp8j22f6xh652qd8qzlpqr4sr8xpkka70sedlnxn3qs5nmxhccj7yqvzqqqyx7cc95u5w
n/Games - Atualizações sobre jogos (por: nostr:npub1atyuu22fvvj4yf2uf050fwra3pu7hjvykc7ravpmrkpwjxcc6hpsfneh4e ) nostr:naddr1qqz5wctdv4esyg82e88zjjtry4fz2hztar6tslvg084unp9k8sltqwcast53kxx4cvpsgqqqsmmqn0x7k7
n/JogosBrasil - Clips de jogos (por: nostr:nprofile1qqsyw3rqynrlkstywlk3gmlhvk4tcehpyahwktrqcczegaqt53vl7kcpg3mhxw309ahhsarjv3jhvctkxc685d35093rw7pkwf4xwdrww3a8z6ngv4jx6dtzx4ax5ut4d36kw6mwdpa8ydpkdeunyutzv9jzummwd9hkutcpg3mhxw309uex5umwd35xvmn9d35kwdtpvdcnv6tpvdukgmt6v33xgmt8xau8watwd568smpkw9mkyan6v93hwdrvwaex5mtv09jzummwd9hkutcpg4mhxue69uhhx6m60fhrvcmfd4nxga34v5e8q6r2vv68ju34wcmkj6mz0p6xudtxxajxkamwx43nwa35xa6xgat6d33x7um3d4ckgtn0de5k7m304dlxq4 ) nostr:naddr1qq955mm8dae5yunpwd5kcqghwaehxw309aex2mrp0yhxummnw3ezucnpdejz7q3qj90yg0hl4e6qr7yg982dlh0qxdefy72d6ntuqet7hv3ateya782sxpqqqzr0vus9jl2
n/Minecraft (por: nostr:npub19xc7f5lg2z6svrjgye63rx44a96aq2ysqajx5tmum28cu6mk5j3qj3n9m9 ) nostr:naddr1qqy566twv43hyctxwspzq2d3unf7s594qc8ysfn4zxdtt6t46q5fqpmydghhek503e4hdf9zqvzqqqyx7ct7hldr
n/GenshinImpactBr (por: nostr:nprofile1qqs28fezzs5n2rdjh9deqv3ztk59mhg4j2jxaee7a4amkya30jnruggppemhxue69uhkummn9ekx7mp0qyg8wumn8ghj7mn0wd68ytnddakj7qgawaehxw309ahx7um5wghxy6t5vdhkjmn9wgh8xmmrd9skctcnffw22) nostr:naddr1qqtlp8u85lcflpahgajkuumgd9hyjmtsv93hgsnjq9z8wue69uhkw6tjwahhgvntdaunx6mkdgmxv6ehdaek2mm3v9a8qdtkwa3x2cthda3kyvmdxgmk5cm3w3sksd34vcexv6mvxdukgtn0de5k7m30qgs28fezzs5n2rdjh9deqv3ztk59mhg4j2jxaee7a4amkya30jnruggrqsqqpphkq4s4py
Libertarianismo:
n/Defensores-caseiros (por: nostr:nprofile1qqsyw3rqynrlkstywlk3gmlhvk4tcehpyahwktrqcczegaqt53vl7kcpg3mhxw309ahhsarjv3jhvctkxc685d35093rw7pkwf4xwdrww3a8z6ngv4jx6dtzx4ax5ut4d36kw6mwdpa8ydpkdeunyutzv9jzummwd9hkutcpg3mhxw309uex5umwd35xvmn9d35kwdtpvdcnv6tpvdukgmt6v33xgmt8xau8watwd568smpkw9mkyan6v93hwdrvwaex5mtv09jzummwd9hkutcpg4mhxue69uhhx6m60fhrvcmfd4nxga34v5e8q6r2vv68ju34wcmkj6mz0p6xudtxxajxkamwx43nwa35xa6xgat6d33x7um3d4ckgtn0de5k7m304dlxq4) nostr:naddr1qq0lp8u85lcflpahg3jkvetwwdhhyetn943kzum9d9ex7ulsn78mgq3qgazxqfx8ldqkgaldz3hlwed2h3nwzfmwavkxp3s9j36qhfzeladsxpqqqzr0vcr78h2
n/Desobediência_Civil (por: nostr:nprofile1qqs2kw4x8jws3a4heehst0ywafwfymdqk35hx8mrf0dw6zdsnk5kj9gpg3mhxw309uex5umwd35xvmn9d35kwdtpvdcnv6tpvdukgmt6v33xgmt8xau8watwd568smpkw9mkyan6v93hwdrvwaex5mtv09jzummwd9hkutcpg4mhxue69uhhx6m60fhrvcmfd4nxga34v5e8q6r2vv68ju34wcmkj6mz0p6xudtxxajxkamwx43nwa35xa6xgat6d33x7um3d4ckgtn0de5k7m30q9z8wue69uhk77r5wfjx2anpwcmrg73kx3ukydmcxeex5ee5de685ut2dpjkgmf4vg6h56n3w4k82emtde585u35xeh8jvn3vfskgtn0de5k7m306r5ytp) nostr:naddr1qq2ygetnda3x2erfcw4xucmfv905x6tkd9kqz3rhwvaz7tm8d9e8wmm5xf4k77fnddmx5dnxdvmk7um9dackz7nsx4m8wcn9v9mk7cmzxdknydm2vdchgctgxc6kvvnxddkrx7ty9ehku6t0dchsyg9t82nre8gg76muumc9hj8w5hyjdkstg6tnra35hkhdpxcfm2tfz5psgqqqsmmqlg3ata
n/sobreviNOSTR - Sobrevivencialismo (por: nostr:nprofile1qqsyw3rqynrlkstywlk3gmlhvk4tcehpyahwktrqcczegaqt53vl7kcpg3mhxw309ahhsarjv3jhvctkxc685d35093rw7pkwf4xwdrww3a8z6ngv4jx6dtzx4ax5ut4d36kw6mwdpa8ydpkdeunyutzv9jzummwd9hkutcpg3mhxw309uex5umwd35xvmn9d35kwdtpvdcnv6tpvdukgmt6v33xgmt8xau8watwd568smpkw9mkyan6v93hwdrvwaex5mtv09jzummwd9hkutcpg4mhxue69uhhx6m60fhrvcmfd4nxga34v5e8q6r2vv68ju34wcmkj6mz0p6xudtxxajxkamwx43nwa35xa6xgat6d33x7um3d4ckgtn0de5k7m304dlxq4) nostr:naddr1qq20p8u85lcflpah2dhkyun9we55un6n23fqz3rhwvaz7tm8d9e8wmm5xf4k77fnddmx5dnxdvmk7um9dackz7nsx4m8wcn9v9mk7cmzxdknydm2vdchgctgxc6kvvnxddkrx7ty9ehku6t0dchsygz8g3szf3lmg9j80mg5dlmkt24uvmsjwmht93svvpv5ws96gk0ltvpsgqqqsmmqtempje
n/Triggr - Armas (por: nostr:nprofile1qqsyw3rqynrlkstywlk3gmlhvk4tcehpyahwktrqcczegaqt53vl7kcpg3mhxw309ahhsarjv3jhvctkxc685d35093rw7pkwf4xwdrww3a8z6ngv4jx6dtzx4ax5ut4d36kw6mwdpa8ydpkdeunyutzv9jzummwd9hkutcpg3mhxw309uex5umwd35xvmn9d35kwdtpvdcnv6tpvdukgmt6v33xgmt8xau8watwd568smpkw9mkyan6v93hwdrvwaex5mtv09jzummwd9hkutcpg4mhxue69uhhx6m60fhrvcmfd4nxga34v5e8q6r2vv68ju34wcmkj6mz0p6xudtxxajxkamwx43nwa35xa6xgat6d33x7um3d4ckgtn0de5k7m304dlxq4) nostr:naddr1qqr9g5jfgar4yqghwaehxw309aex2mrp0yhxummnw3ezucnpdejz7q3qgazxqfx8ldqkgaldz3hlwed2h3nwzfmwavkxp3s9j36qhfzeladsxpqqqzr0vt5085y
n/Kaboom - Química e explosivos (por: nostr:nprofile1qqsyw3rqynrlkstywlk3gmlhvk4tcehpyahwktrqcczegaqt53vl7kcpg3mhxw309ahhsarjv3jhvctkxc685d35093rw7pkwf4xwdrww3a8z6ngv4jx6dtzx4ax5ut4d36kw6mwdpa8ydpkdeunyutzv9jzummwd9hkutcpg3mhxw309uex5umwd35xvmn9d35kwdtpvdcnv6tpvdukgmt6v33xgmt8xau8watwd568smpkw9mkyan6v93hwdrvwaex5mtv09jzummwd9hkutcpg4mhxue69uhhx6m60fhrvcmfd4nxga34v5e8q6r2vv68ju34wcmkj6mz0p6xudtxxajxkamwx43nwa35xa6xgat6d33x7um3d4ckgtn0de5k7m304dlxq4 ) nostr:naddr1qqt0p8u85lcflpahfdq5yn60fhcflra57z0602qppemhxue69uhkummn9ekx7mp0qgsyw3rqynrlkstywlk3gmlhvk4tcehpyahwktrqcczegaqt53vl7kcrqsqqpphk637p09
n/CAVERNA-DO-PIRATA - Pirataria (por: nostr:nprofile1qqsyw3rqynrlkstywlk3gmlhvk4tcehpyahwktrqcczegaqt53vl7kcpg3mhxw309ahhsarjv3jhvctkxc685d35093rw7pkwf4xwdrww3a8z6ngv4jx6dtzx4ax5ut4d36kw6mwdpa8ydpkdeunyutzv9jzummwd9hkutcpg3mhxw309uex5umwd35xvmn9d35kwdtpvdcnv6tpvdukgmt6v33xgmt8xau8watwd568smpkw9mkyan6v93hwdrvwaex5mtv09jzummwd9hkutcpg4mhxue69uhhx6m60fhrvcmfd4nxga34v5e8q6r2vv68ju34wcmkj6mz0p6xudtxxajxkamwx43nwa35xa6xgat6d33x7um3d4ckgtn0de5k7m304dlxq4) nostr:naddr1qq40p8u85lcflpahgdq4v32jfeqj63z094gyj5jp23qlp8u0kn3gpr0znzswlwy07z0ca2gpg3mhxw309ankjunhda6ry6m00yekkan2xenxkdm0wdjk7utp0fcr2anhvfjkzam0vd3rxmfjxa4xxut5v95rvdtxxfnxkmpn09jzummwd9hkutczypr5gcpycla5zerha52xlam9427xdcf8dm4jccxxqk28gzayt8l4kqcyqqqgdask5hmmn
n/PrivateSociety - Propostas e discussões para uma sociedade privada (por: nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qy08wumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wshsz9thwden5te0wfjkccte9ehx7um5wghxyee0vnwevs) nostr:naddr1qq89qunfweshge2nda3kjet50ypzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqvzqqqyx7cfvhgrt
n/TeoriaDasBandeiras (por: nostr:nprofile1qqs8efvwljfdwa0qynp7n9dhqacf3llucdqtm9ge8kjv0dt40yw586gpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz9mhwden5te0wfjkccte9ehx7um5wghxyctwvshszrnhwden5te0dehhxtnvdakz7ar9xsz) nostr:naddr1qqf9get0wf5kzerpwdpxzmnyv45hyctnqgs8efvwljfdwa0qynp7n9dhqacf3llucdqtm9ge8kjv0dt40yw586grqsqqpphkatc9rh
n/SemFronteiras (por: nostr:nprofile1qqs8efvwljfdwa0qynp7n9dhqacf3llucdqtm9ge8kjv0dt40yw586gpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz9mhwden5te0wfjkccte9ehx7um5wghxyctwvshszrnhwden5te0dehhxtnvdakz7ar9xsz) nostr:naddr1qqx4xetdgeex7mn5v45hyctnqgs8efvwljfdwa0qynp7n9dhqacf3llucdqtm9ge8kjv0dt40yw586grqsqqpphkjs0cue
n/AnarcoSobrevivencialismo (por: nostr:nprofile1qqsfj5s9lrcckaxd8ul7vf3c4ajfg0n0ytcjvetclw679hy6p98wpfqpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qy2hwumn8ghj7un9d3shjtnwdaehgu3wvfnj7qg4waehxw309ahx7um5wghx77r5wghxgetk9uykdgj7) nostr:naddr1qqdyzmnpwf3k75m0vfex2anfwejkucmfv9kxjumddap9yq3qn9fqt7833d6v60elucnr3tmyjslx7gh3yejh37a4utwf5z2wuzjqxpqqqzr0vsz5kcy
n/SociedadeAlternativaLibertaria - Libertários (por: nostr:nprofile1qqs2ph3za34henpq2y3rzgqwgdc4pjmpleqr5t62rf7kxj0lmdyxnfgppemhxue69uhkummn9ekx7mp0ydypw5) nostr:naddr1qq09xmmrd9jkgctyv4qkcar9wfhxzarfwes5c6tzv4e8gctjd9ssyg9qmc3wc6muess9zg33yq8yxu2sedslusp69a9p5ltrf8lakjrf55psgqqqsmmq8dtk3m
n/LibertariosPT - Libertários de Portugal (por: nostr:nprofile1qqszx8rlqax4pakclsxscudfset7fs37jm7rflnugh3nf8r4ehx4z4gppemhxue69uhkummn9ekx7mp05leack) nostr:naddr1qqx5c6tzv4e8gctjd9hhx5z5qgszx8rlqax4pakclsxscudfset7fs37jm7rflnugh3nf8r4ehx4z4grqsqqpphke05802
Discussões Sociais
n/Aliança-Conservadora-Brasileira (por: nostr:npub1atg5rgfuarup49470kqexfgcesdr85yru56y0y8qf3z6kc30g2vqyfyqyp ) nostr:naddr1qqsyzmrfv9hv8fmptapk7mnnv4e8vctydaexzh6zwfshx6tvv45hycgzyr4dzsdp8n50sx5khe7crye9rrxp5v7ss0jng3usupxyt2mz9apfsqcyqqqgdasue9j59
n/Ilha-de-Anhatomirin - Monarquia (Por: nostr:nprofile1qqsgzc22v804davx6vpwtwfu6j84yvupeld497tfr396usmu7s0m08qpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszymhwden5te0v9ehgunpdshxu6twdfsj7qguwaehxw309a5x7ervvfhkgtnrdaexzcmvv5h8gmm0d3ej7a2jp7u) nostr:naddr1qqf5jmrgvykkgefdg9hxsct5dakkjunfd5q3uamnwvaz7tmwdaehgu3dwp6kytnhv4kxcmmjv3jhytnwv46z7q3qs9s55cwl2m6cd5czukune4y02gecrn7m2tukj8zt4epheaqlk7wqxpqqqzr0vu2qg3m
n/ManosphereBrasil - Contra a misandria (Por: nostr:nprofile1qqs0p3yd48kzm56a4tual772y3vsjwehx6tc3rv8ht8q0zgncg5r7qgpg3mhxw309ahhsarjv3jhvctkxc685d35093rw7pkwf4xwdrww3a8z6ngv4jx6dtzx4ax5ut4d36kw6mwdpa8ydpkdeunyutzv9jzummwd9hkutcpjnhed) nostr:naddr1qqgy6ctwdaehq6r9wfj5yunpwd5kcqgawaehxw309ahx7um5wghxy6t5vdhkjmn9wgh8xmmrd9skctczyrcvfrdfaskaxhd2l80lhj3ytyynkdekj7ygmpa6ecrcjy7z9qlszqcyqqqgdasl3kaju
Memes
n/Shitposting (Por: nostr:nprofile1qqs9nyy7ctpy334n3p7gh4p93lmj2cch8ae8jgjsp8al2g32stdnpdcpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpr9mhxue69uhhyetvv9ujumn0wd68ytnrdakjuct49us57cz4) nostr:naddr1qq94x6rfw3cx7um5d9hxwqgswaehxw309ahx7um5wghx6mmd9upzqkvsnmpvyjxxkwy8ez75yk8lwftrzulhy7fz2qylhafz92pdkv9hqvzqqqyx7chlz42w
n/Puro-caldo-do-Brasil. (por: nostr:nprofile1qqsztjv2pflmwcayr2jaq90astj94lu5l0smr0zhkfdct4ry7uxu7dqywzq8t) nostr:naddr1qq24qatjdukkxctvv3hj6er094p8yctnd9kzuqghwaehxw309aex2mrp0yh8qunfd4skctnwv46z7q3qyhyc5znlka36gx496q2lmqhyttlef7lpkx790vjmsh2xfacdeu6qxpqqqzr0vwh0r4w
Locais
n/NordesteLibertário - Nordeste (Por: nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpzpmhxue69uhkummnw3ezumt0d5hsz9mhwden5te0wfjkccte9ehx7um5wghxyctwvshsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0s8pkkr ) nostr:naddr1qqf5ummjv3jhxar9f35kyetjwnp6zunfdupzpf0wg36k3g3hygndv3cp8f2j284v0hfh4dqgqjj3yxnreck2w4qpqvzqqqyx7cnejrgl
n/BahiaLibertária - Bahia (por: nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpzpmhxue69uhkummnw3ezumt0d5hsz9mhwden5te0wfjkccte9ehx7um5wghxyctwvshsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0s8pkkr ) nostr:naddr1qqgyyctgd9s5c6tzv4e8fsapwf5kzq3q5hhygatg5gmjyfkkguqn54f9r6k8m5m6ksyqffgjrf3uut982sqsxpqqqzr0vc4949j
n/LiberdadeMinas - Minas Gerais (Por: nostr:nprofile1qqsf0kszkmrmy9l3c7mxr3uhh3fmyjpq2z4hjvv7wdq84k5npd7gw3cpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszxthwden5te0wfjkccte9eekummjwsh8xmmrd9skctcprpmhxue69uhhyetvv9ujuurvv438xarj9e3k7mf0mx68nx) nostr:naddr1qq8yc6tzv4exgctyv4xkjmnpwvqsqq3qjldq9dk8kgtlr3akv8re00znkfyzq59t0yceuu6q0tdfxzmusarsxpqqqzr0vag4knt
n/CyberpunkManaus - Manaus (Por: nostr:nprofile1qqsz8v8zlrg0jclhasdksctsr2jw28lrqwn3zrsclnkpmytvmzhhdlqpz3mhxw309ucnqt3jx5cjuvpwxgarsvpcxqq3wamn8ghj7vfexghrzd3c9ccjuv3s8gurqwps9uq5gamn8ghj7entv43kjd3nvfcx5en6093h2up5w3ekgmn4xsekvatwx438xamywp6ksemcwp6xummzdgekzdmz0pmhzd3j0g6xzepwdahxjmmw9u2upp88) nostr:naddr1qqgyx7tzv4e8qatwdvk56ctwv96hxqgqqgsz8v8zlrg0jclhasdksctsr2jw28lrqwn3zrsclnkpmytvmzhhdlqrqsqqpphkgjh4rf
n/BelémLibertario (por: nostr:npub167s6q8sfzkhel4227kacu98zcg6e37v5sqwkv8mxaazrryz9huzqlhcu2t) nostr:nevent1qqsqnqgx3u2whdqdqmlstqcmgav6xfe4upz2qxfvj03tlk699dzlk7qzyrt6rgq7py26l874ft6mhrs5utprtx8ejjqp6eslvmh5gvvsgklsgqcyqqqqq2qqsdz6l
n/SãoPauloLivre - São Paulo (por: nostr:nprofile1qqsw4jww99ykxf2jy4wyh685hp7cs70texztv0p7kqa3mqhfrvvdtscpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpzpmhxue69uhkummnw3ezumt0d5hsz8rhwden5te0wfjkccte9emkj6mfveex2etyd9sju7re0ghsftvmn0 e nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qy08wumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wshsz9thwden5te0wfjkccte9ehx7um5wghxyee0vnwevs) nostr:naddr1qq898sardagxzatvdaxxjanjv5pzp6kfec55jce92gj4cjlg7ju8mzrea0ycfd3u86crk8vzayd334wrqvzqqqyx7cmls060
n/AcreLibertário - Acre (por: nostr:nprofile1qqsw4jww99ykxf2jy4wyh685hp7cs70texztv0p7kqa3mqhfrvvdtscpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpzpmhxue69uhkummnw3ezumt0d5hsz8rhwden5te0wfjkccte9emkj6mfveex2etyd9sju7re0ghsftvmn0 e nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qy08wumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wshsz9thwden5te0wfjkccte9ehx7um5wghxyee0vnwevs) nostr:naddr1qq85zcmjv4xxjcn9wf6v8gtjd9hsyg82e88zjjtry4fz2hztar6tslvg084unp9k8sltqwcast53kxx4cvpsgqqqsmmqftljpt
n/Alagoas (por: nostr:nprofile1qqsw4jww99ykxf2jy4wyh685hp7cs70texztv0p7kqa3mqhfrvvdtscpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpzpmhxue69uhkummnw3ezumt0d5hsz8rhwden5te0wfjkccte9emkj6mfveex2etyd9sju7re0ghsftvmn0 e nostr:nprofile1qqs2tmjyw452ydezymtywqf625j3atra6datgzqy55fp5c7w9jn4gqgpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qy08wumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wshsz9thwden5te0wfjkccte9ehx7um5wghxyee0vnwevs) nostr:naddr1qqr5zmrpvahkzuczyr4vnn3ff93j2539t3973a9c0ky8n67fsjmrc04s8vwc96gmrr2uxqcyqqqgdas8qtaf4
Empreendedorismo:
n/Empreendedorismo/BR (por: nostr:npub14ysljm0gn6nnjv95yzeq6ffze4f3f9l0248kez4fhm4yz3fzardslwx5e8) nostr:naddr1qqd5y4zr9azk6urjv4jkuer9v3hhy6tnd4hj7snjv9ekjmqzyz5jr7tdaz02wwfsksstyrf9ytx4x9yhaa257my24xlw5s29yt5dkqcyqqqgdaslzrp3p
n/Empreendedorismo/SP (por: nostr:npub14ysljm0gn6nnjv95yzeq6ffze4f3f9l0248kez4fhm4yz3fzardslwx5e8) nostr:naddr1qqt5y4zr9azk6urjv4jkuer9v3hhy6tnd4hj756sqgs2jg0edh5fafeexz6zpvsdy53v65c5jlh42nmv325ma6jpg53w3kcrqsqqpphkcym25j
Análise
n/EBDV (Em Busca Da Verdade) - Análise geral e desenvolvimento pessoal (por: nostr:nprofile1qqs0xmu0skfdlmtl5tth6cv99za8f8kv7ulz5srkm8p6v5k03dx9lzspz4mhxue69uhkummnw3ezummcw3ezuer9wchszrnhwden5te0dehhxtnvdakz7qgswaehxw309ahx7um5wghx6mmd9usvrt9r) nostr:naddr1qqzy2sjy2cpzpum037ze9hld073dwltps55t5ay7enmnu2jqwmvu8fjje795chu2qvzqqqyx7cy9v5px
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@ 04c915da:3dfbecc9
2025-05-16 17:51:54In much of the world, it is incredibly difficult to access U.S. dollars. Local currencies are often poorly managed and riddled with corruption. Billions of people demand a more reliable alternative. While the dollar has its own issues of corruption and mismanagement, it is widely regarded as superior to the fiat currencies it competes with globally. As a result, Tether has found massive success providing low cost, low friction access to dollars. Tether claims 400 million total users, is on track to add 200 million more this year, processes 8.1 million transactions daily, and facilitates $29 billion in daily transfers. Furthermore, their estimates suggest nearly 40% of users rely on it as a savings tool rather than just a transactional currency.
Tether’s rise has made the company a financial juggernaut. Last year alone, Tether raked in over $13 billion in profit, with a lean team of less than 100 employees. Their business model is elegantly simple: hold U.S. Treasuries and collect the interest. With over $113 billion in Treasuries, Tether has turned a straightforward concept into a profit machine.
Tether’s success has resulted in many competitors eager to claim a piece of the pie. This has triggered a massive venture capital grift cycle in USD tokens, with countless projects vying to dethrone Tether. Due to Tether’s entrenched network effect, these challengers face an uphill battle with little realistic chance of success. Most educated participants in the space likely recognize this reality but seem content to perpetuate the grift, hoping to cash out by dumping their equity positions on unsuspecting buyers before they realize the reality of the situation.
Historically, Tether’s greatest vulnerability has been U.S. government intervention. For over a decade, the company operated offshore with few allies in the U.S. establishment, making it a major target for regulatory action. That dynamic has shifted recently and Tether has seized the opportunity. By actively courting U.S. government support, Tether has fortified their position. This strategic move will likely cement their status as the dominant USD token for years to come.
While undeniably a great tool for the millions of users that rely on it, Tether is not without flaws. As a centralized, trusted third party, it holds the power to freeze or seize funds at its discretion. Corporate mismanagement or deliberate malpractice could also lead to massive losses at scale. In their goal of mitigating regulatory risk, Tether has deepened ties with law enforcement, mirroring some of the concerns of potential central bank digital currencies. In practice, Tether operates as a corporate CBDC alternative, collaborating with authorities to surveil and seize funds. The company proudly touts partnerships with leading surveillance firms and its own data reveals cooperation in over 1,000 law enforcement cases, with more than $2.5 billion in funds frozen.
The global demand for Tether is undeniable and the company’s profitability reflects its unrivaled success. Tether is owned and operated by bitcoiners and will likely continue to push forward strategic goals that help the movement as a whole. Recent efforts to mitigate the threat of U.S. government enforcement will likely solidify their network effect and stifle meaningful adoption of rival USD tokens or CBDCs. Yet, for all their achievements, Tether is simply a worse form of money than bitcoin. Tether requires trust in a centralized entity, while bitcoin can be saved or spent without permission. Furthermore, Tether is tied to the value of the US Dollar which is designed to lose purchasing power over time, while bitcoin, as a truly scarce asset, is designed to increase in purchasing power with adoption. As people awaken to the risks of Tether’s control, and the benefits bitcoin provides, bitcoin adoption will likely surpass it.
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@ e6817453:b0ac3c39
2024-12-07 14:54:46Introduction: Personal Knowledge Graphs and Linked Data
We will explore the world of personal knowledge graphs and discuss how they can be used to model complex information structures. Personal knowledge graphs aren’t just abstract collections of nodes and edges—they encode meaningful relationships, contextualizing data in ways that enrich our understanding of it. While the core structure might be a directed graph, we layer semantic meaning on top, enabling nuanced connections between data points.
The origin of knowledge graphs is deeply tied to concepts from linked data and the semantic web, ideas that emerged to better link scattered pieces of information across the web. This approach created an infrastructure where data islands could connect — facilitating everything from more insightful AI to improved personal data management.
In this article, we will explore how these ideas have evolved into tools for modeling AI’s semantic memory and look at how knowledge graphs can serve as a flexible foundation for encoding rich data contexts. We’ll specifically discuss three major paradigms: RDF (Resource Description Framework), property graphs, and a third way of modeling entities as graphs of graphs. Let’s get started.
Intro to RDF
The Resource Description Framework (RDF) has been one of the fundamental standards for linked data and knowledge graphs. RDF allows data to be modeled as triples: subject, predicate, and object. Essentially, you can think of it as a structured way to describe relationships: “X has a Y called Z.” For instance, “Berlin has a population of 3.5 million.” This modeling approach is quite flexible because RDF uses unique identifiers — usually URIs — to point to data entities, making linking straightforward and coherent.
RDFS, or RDF Schema, extends RDF to provide a basic vocabulary to structure the data even more. This lets us describe not only individual nodes but also relationships among types of data entities, like defining a class hierarchy or setting properties. For example, you could say that “Berlin” is an instance of a “City” and that cities are types of “Geographical Entities.” This kind of organization helps establish semantic meaning within the graph.
RDF and Advanced Topics
Lists and Sets in RDF
RDF also provides tools to model more complex data structures such as lists and sets, enabling the grouping of nodes. This extension makes it easier to model more natural, human-like knowledge, for example, describing attributes of an entity that may have multiple values. By adding RDF Schema and OWL (Web Ontology Language), you gain even more expressive power — being able to define logical rules or even derive new relationships from existing data.
Graph of Graphs
A significant feature of RDF is the ability to form complex nested structures, often referred to as graphs of graphs. This allows you to create “named graphs,” essentially subgraphs that can be independently referenced. For example, you could create a named graph for a particular dataset describing Berlin and another for a different geographical area. Then, you could connect them, allowing for more modular and reusable knowledge modeling.
Property Graphs
While RDF provides a robust framework, it’s not always the easiest to work with due to its heavy reliance on linking everything explicitly. This is where property graphs come into play. Property graphs are less focused on linking everything through triples and allow more expressive properties directly within nodes and edges.
For example, instead of using triples to represent each detail, a property graph might let you store all properties about an entity (e.g., “Berlin”) directly in a single node. This makes property graphs more intuitive for many developers and engineers because they more closely resemble object-oriented structures: you have entities (nodes) that possess attributes (properties) and are connected to other entities through relationships (edges).
The significant benefit here is a condensed representation, which speeds up traversal and queries in some scenarios. However, this also introduces a trade-off: while property graphs are more straightforward to query and maintain, they lack some complex relationship modeling features RDF offers, particularly when connecting properties to each other.
Graph of Graphs and Subgraphs for Entity Modeling
A third approach — which takes elements from RDF and property graphs — involves modeling entities using subgraphs or nested graphs. In this model, each entity can be represented as a graph. This allows for a detailed and flexible description of attributes without exploding every detail into individual triples or lump them all together into properties.
For instance, consider a person entity with a complex employment history. Instead of representing every employment detail in one node (as in a property graph), or as several linked nodes (as in RDF), you can treat the employment history as a subgraph. This subgraph could then contain nodes for different jobs, each linked with specific properties and connections. This approach keeps the complexity where it belongs and provides better flexibility when new attributes or entities need to be added.
Hypergraphs and Metagraphs
When discussing more advanced forms of graphs, we encounter hypergraphs and metagraphs. These take the idea of relationships to a new level. A hypergraph allows an edge to connect more than two nodes, which is extremely useful when modeling scenarios where relationships aren’t just pairwise. For example, a “Project” could connect multiple “People,” “Resources,” and “Outcomes,” all in a single edge. This way, hypergraphs help in reducing the complexity of modeling high-order relationships.
Metagraphs, on the other hand, enable nodes and edges to themselves be represented as graphs. This is an extremely powerful feature when we consider the needs of artificial intelligence, as it allows for the modeling of relationships between relationships, an essential aspect for any system that needs to capture not just facts, but their interdependencies and contexts.
Balancing Structure and Properties
One of the recurring challenges when modeling knowledge is finding the balance between structure and properties. With RDF, you get high flexibility and standardization, but complexity can quickly escalate as you decompose everything into triples. Property graphs simplify the representation by using attributes but lose out on the depth of connection modeling. Meanwhile, the graph-of-graphs approach and hypergraphs offer advanced modeling capabilities at the cost of increased computational complexity.
So, how do you decide which model to use? It comes down to your use case. RDF and nested graphs are strong contenders if you need deep linkage and are working with highly variable data. For more straightforward, engineer-friendly modeling, property graphs shine. And when dealing with very complex multi-way relationships or meta-level knowledge, hypergraphs and metagraphs provide the necessary tools.
The key takeaway is that only some approaches are perfect. Instead, it’s all about the modeling goals: how do you want to query the graph, what relationships are meaningful, and how much complexity are you willing to manage?
Conclusion
Modeling AI semantic memory using knowledge graphs is a challenging but rewarding process. The different approaches — RDF, property graphs, and advanced graph modeling techniques like nested graphs and hypergraphs — each offer unique strengths and weaknesses. Whether you are building a personal knowledge graph or scaling up to AI that integrates multiple streams of linked data, it’s essential to understand the trade-offs each approach brings.
In the end, the choice of representation comes down to the nature of your data and your specific needs for querying and maintaining semantic relationships. The world of knowledge graphs is vast, with many tools and frameworks to explore. Stay connected and keep experimenting to find the balance that works for your projects.
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@ fd208ee8:0fd927c1
2025-02-15 07:02:08E-cash are coupons or tokens for Bitcoin, or Bitcoin debt notes that the mint issues. The e-cash states, essentially, "IoU 2900 sats".
They're redeemable for Bitcoin on Lightning (hard money), and therefore can be used as cash (softer money), so long as the mint has a good reputation. That means that they're less fungible than Lightning because the e-cash from one mint can be more or less valuable than the e-cash from another. If a mint is buggy, offline, or disappears, then the e-cash is unreedemable.
It also means that e-cash is more anonymous than Lightning, and that the sender and receiver's wallets don't need to be online, to transact. Nutzaps now add the possibility of parking transactions one level farther out, on a relay. The same relays that cannot keep npub profiles and follow lists consistent will now do monetary transactions.
What we then have is * a transaction on a relay that triggers * a transaction on a mint that triggers * a transaction on Lightning that triggers * a transaction on Bitcoin.
Which means that every relay that stores the nuts is part of a wildcat banking system. Which is fine, but relay operators should consider whether they wish to carry the associated risks and liabilities. They should also be aware that they should implement the appropriate features in their relay, such as expiration tags (nuts rot after 2 weeks), and to make sure that only expired nuts are deleted.
There will be plenty of specialized relays for this, so don't feel pressured to join in, and research the topic carefully, for yourself.
https://github.com/nostr-protocol/nips/blob/master/60.md
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@ 58537364:705b4b85
2025-05-20 14:22:05Ikigai means "the meaning of life" or "the reason for being." Why were we born? What are we living for? When work is not seen as something separate from life.
The Japanese believe that everyone has their own ikigai. Those who discover it find meaning and value in life, leading to greater happiness, better moods, and a more fulfilling world.
Today, there are many books about ikigai, but the first one written by a Japanese author is:
“The Little Book of Ikigai: The Secret Japanese Way to Live a Happy and Long Life” by Ken Mogi (Thai translation by Wuttichai Krisanaprakankit)
Come explore the true world of ikigai through this Japanese neuroscientist’s insights, conveyed through conversations that challenge the idea of ikigai as something grand—showing instead that it starts with small personal joys.
Ken Mogi says that Jiro Ono, a 94-year-old sushi chef who still makes sushi today, was his inspiration for writing the book.
This sushi chef did not start the job out of passion or talent—but he dedicated every piece of sushi to bring happiness to his customers. That, Ken says, is the essence of ikigai.
Strangely, the word “ikigai” is not often used in daily conversations in Japan.
Because it’s something so natural that it doesn’t need to be said. In today’s world, we often talk about how to succeed, how to get promoted, how to become a CEO. But for the Japanese, success isn’t everything.
For example, many Japanese people are deeply passionate about hobbies or have kodawari. Others might not care what those hobbies are—as long as the person seems happy, that’s enough. Some are obsessed with trains, manga, or anime. These people don’t need fame or recognition from society. If they’re happy in their own way, that’s perfectly okay.
Kodawari means a deep dedication or meticulous attention to something. For example, someone obsessed with stationery might spend a lot of time selecting the perfect pens, notebooks, or pencils. They’ll research, analyze, and experiment to find the tools they love most.
Everyone’s ikigai can be different, because people value different things and live differently.
Ikigai is about diversity. Japanese society encourages children to discover their own ikigai. They don’t tell kids to pursue jobs only because they pay well. If you ask students what jobs they want, they rarely say it’s about money first.
Ikigai is not the same as "success." The Japanese know that life isn’t just about being successful. Ikigai matters more. You could be successful but lack ikigai. Conversely, you might not be “successful” but still have ikigai—and you might be happier.
Ken Mogi defines success as something society acknowledges and rewards. But ikigai comes from your own heart and personal happiness. Others may not recognize it as success, but that doesn’t matter.
Ikigai is personal. We can be happy in our own way. We don’t judge others’ happiness—let them find joy in their own path.
The key to ikigai is finding small moments of happiness, even from little things. For example, when Ken was a child, he loved studying butterflies. Now, when he’s out jogging and sees a beautiful butterfly, he feels ikigai. Or sometimes, it comes from small amusing moments—like hearing a child tell his dad, “Dad, you have to do it this way!”
So, if we want to find our own ikigai, where do we start? Start with noticing small pleasures in daily life. That’s the easiest place to begin.
In the brain, there's a chemical called dopamine. When we achieve even small things, dopamine is released, creating happiness. That’s why enjoying small things is so important.
For some, ikigai might seem hard to grasp—especially if life is difficult, if they feel hopeless or lack self-worth. So begin with tiny moments of joy.
Is it the same as positive thinking? Ikigai is a part of that. But when we talk about “positive thinking,” it can feel like pressure to some people. So instead, just notice small joys: making your morning coffee, running in the rain.
Lessons from Ken Mogi:
-
Ikigai is not about chasing success or wealth, but about feeling happiness in your own life, which gives your life personal meaning.
-
Ikigai is not defined by society. Everyone’s ikigai is different. Each person can be happy in their own way.
-
**Don’t judge or force others—**children, partners—to live how you think is right. Respect diversity.
-
Smile at people who are enjoying their ikigai, and support them if they struggle.
-
Ikigai exists on two levels:
-
Big ikigai: life purpose or work values.
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Small ikigai: tiny joys in everyday life.
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Ikigai starts with noticing small pleasures today.
Source: From the Cloud of Thoughts column An interview by Ajarn Katewadi from Marumura with Ken Mogi, author of the first Japanese book on ikigai.
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-
@ 91bea5cd:1df4451c
2025-02-04 17:24:50Definição de ULID:
Timestamp 48 bits, Aleatoriedade 80 bits Sendo Timestamp 48 bits inteiro, tempo UNIX em milissegundos, Não ficará sem espaço até o ano 10889 d.C. e Aleatoriedade 80 bits, Fonte criptograficamente segura de aleatoriedade, se possível.
Gerar ULID
```sql
CREATE EXTENSION IF NOT EXISTS pgcrypto;
CREATE FUNCTION generate_ulid() RETURNS TEXT AS $$ DECLARE -- Crockford's Base32 encoding BYTEA = '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; timestamp BYTEA = E'\000\000\000\000\000\000'; output TEXT = '';
unix_time BIGINT; ulid BYTEA; BEGIN -- 6 timestamp bytes unix_time = (EXTRACT(EPOCH FROM CLOCK_TIMESTAMP()) * 1000)::BIGINT; timestamp = SET_BYTE(timestamp, 0, (unix_time >> 40)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 1, (unix_time >> 32)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 2, (unix_time >> 24)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 3, (unix_time >> 16)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 4, (unix_time >> 8)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 5, unix_time::BIT(8)::INTEGER);
-- 10 entropy bytes ulid = timestamp || gen_random_bytes(10);
-- Encode the timestamp output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 0) & 224) >> 5)); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 0) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 1) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 1) & 7) << 2) | ((GET_BYTE(ulid, 2) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 2) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 2) & 1) << 4) | ((GET_BYTE(ulid, 3) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 3) & 15) << 1) | ((GET_BYTE(ulid, 4) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 4) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 4) & 3) << 3) | ((GET_BYTE(ulid, 5) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 5) & 31)));
-- Encode the entropy output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 6) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 6) & 7) << 2) | ((GET_BYTE(ulid, 7) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 7) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 7) & 1) << 4) | ((GET_BYTE(ulid, 8) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 8) & 15) << 1) | ((GET_BYTE(ulid, 9) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 9) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 9) & 3) << 3) | ((GET_BYTE(ulid, 10) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 10) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 11) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 11) & 7) << 2) | ((GET_BYTE(ulid, 12) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 12) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 12) & 1) << 4) | ((GET_BYTE(ulid, 13) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 13) & 15) << 1) | ((GET_BYTE(ulid, 14) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 14) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 14) & 3) << 3) | ((GET_BYTE(ulid, 15) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 15) & 31)));
RETURN output; END $$ LANGUAGE plpgsql VOLATILE; ```
ULID TO UUID
```sql CREATE OR REPLACE FUNCTION parse_ulid(ulid text) RETURNS bytea AS $$ DECLARE -- 16byte bytes bytea = E'\x00000000 00000000 00000000 00000000'; v char[]; -- Allow for O(1) lookup of index values dec integer[] = ARRAY[ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255, 255, 10, 11, 12, 13, 14, 15, 16, 17, 1, 18, 19, 1, 20, 21, 0, 22, 23, 24, 25, 26, 255, 27, 28, 29, 30, 31, 255, 255, 255, 255, 255, 255, 10, 11, 12, 13, 14, 15, 16, 17, 1, 18, 19, 1, 20, 21, 0, 22, 23, 24, 25, 26, 255, 27, 28, 29, 30, 31 ]; BEGIN IF NOT ulid ~* '^[0-7][0-9ABCDEFGHJKMNPQRSTVWXYZ]{25}$' THEN RAISE EXCEPTION 'Invalid ULID: %', ulid; END IF;
v = regexp_split_to_array(ulid, '');
-- 6 bytes timestamp (48 bits) bytes = SET_BYTE(bytes, 0, (dec[ASCII(v[1])] << 5) | dec[ASCII(v[2])]); bytes = SET_BYTE(bytes, 1, (dec[ASCII(v[3])] << 3) | (dec[ASCII(v[4])] >> 2)); bytes = SET_BYTE(bytes, 2, (dec[ASCII(v[4])] << 6) | (dec[ASCII(v[5])] << 1) | (dec[ASCII(v[6])] >> 4)); bytes = SET_BYTE(bytes, 3, (dec[ASCII(v[6])] << 4) | (dec[ASCII(v[7])] >> 1)); bytes = SET_BYTE(bytes, 4, (dec[ASCII(v[7])] << 7) | (dec[ASCII(v[8])] << 2) | (dec[ASCII(v[9])] >> 3)); bytes = SET_BYTE(bytes, 5, (dec[ASCII(v[9])] << 5) | dec[ASCII(v[10])]);
-- 10 bytes of entropy (80 bits); bytes = SET_BYTE(bytes, 6, (dec[ASCII(v[11])] << 3) | (dec[ASCII(v[12])] >> 2)); bytes = SET_BYTE(bytes, 7, (dec[ASCII(v[12])] << 6) | (dec[ASCII(v[13])] << 1) | (dec[ASCII(v[14])] >> 4)); bytes = SET_BYTE(bytes, 8, (dec[ASCII(v[14])] << 4) | (dec[ASCII(v[15])] >> 1)); bytes = SET_BYTE(bytes, 9, (dec[ASCII(v[15])] << 7) | (dec[ASCII(v[16])] << 2) | (dec[ASCII(v[17])] >> 3)); bytes = SET_BYTE(bytes, 10, (dec[ASCII(v[17])] << 5) | dec[ASCII(v[18])]); bytes = SET_BYTE(bytes, 11, (dec[ASCII(v[19])] << 3) | (dec[ASCII(v[20])] >> 2)); bytes = SET_BYTE(bytes, 12, (dec[ASCII(v[20])] << 6) | (dec[ASCII(v[21])] << 1) | (dec[ASCII(v[22])] >> 4)); bytes = SET_BYTE(bytes, 13, (dec[ASCII(v[22])] << 4) | (dec[ASCII(v[23])] >> 1)); bytes = SET_BYTE(bytes, 14, (dec[ASCII(v[23])] << 7) | (dec[ASCII(v[24])] << 2) | (dec[ASCII(v[25])] >> 3)); bytes = SET_BYTE(bytes, 15, (dec[ASCII(v[25])] << 5) | dec[ASCII(v[26])]);
RETURN bytes; END $$ LANGUAGE plpgsql IMMUTABLE;
CREATE OR REPLACE FUNCTION ulid_to_uuid(ulid text) RETURNS uuid AS $$ BEGIN RETURN encode(parse_ulid(ulid), 'hex')::uuid; END $$ LANGUAGE plpgsql IMMUTABLE; ```
UUID to ULID
```sql CREATE OR REPLACE FUNCTION uuid_to_ulid(id uuid) RETURNS text AS $$ DECLARE encoding bytea = '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; output text = ''; uuid_bytes bytea = uuid_send(id); BEGIN
-- Encode the timestamp output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 0) & 224) >> 5)); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 0) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 1) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 1) & 7) << 2) | ((GET_BYTE(uuid_bytes, 2) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 2) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 2) & 1) << 4) | ((GET_BYTE(uuid_bytes, 3) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 3) & 15) << 1) | ((GET_BYTE(uuid_bytes, 4) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 4) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 4) & 3) << 3) | ((GET_BYTE(uuid_bytes, 5) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 5) & 31)));
-- Encode the entropy output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 6) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 6) & 7) << 2) | ((GET_BYTE(uuid_bytes, 7) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 7) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 7) & 1) << 4) | ((GET_BYTE(uuid_bytes, 8) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 8) & 15) << 1) | ((GET_BYTE(uuid_bytes, 9) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 9) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 9) & 3) << 3) | ((GET_BYTE(uuid_bytes, 10) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 10) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 11) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 11) & 7) << 2) | ((GET_BYTE(uuid_bytes, 12) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 12) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 12) & 1) << 4) | ((GET_BYTE(uuid_bytes, 13) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 13) & 15) << 1) | ((GET_BYTE(uuid_bytes, 14) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 14) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 14) & 3) << 3) | ((GET_BYTE(uuid_bytes, 15) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 15) & 31)));
RETURN output; END $$ LANGUAGE plpgsql IMMUTABLE; ```
Gera 11 Digitos aleatórios: YBKXG0CKTH4
```sql -- Cria a extensão pgcrypto para gerar uuid CREATE EXTENSION IF NOT EXISTS pgcrypto;
-- Cria a função para gerar ULID CREATE OR REPLACE FUNCTION gen_lrandom() RETURNS TEXT AS $$ DECLARE ts_millis BIGINT; ts_chars TEXT; random_bytes BYTEA; random_chars TEXT; base32_chars TEXT := '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; i INT; BEGIN -- Pega o timestamp em milissegundos ts_millis := FLOOR(EXTRACT(EPOCH FROM clock_timestamp()) * 1000)::BIGINT;
-- Converte o timestamp para base32 ts_chars := ''; FOR i IN REVERSE 0..11 LOOP ts_chars := ts_chars || substr(base32_chars, ((ts_millis >> (5 * i)) & 31) + 1, 1); END LOOP; -- Gera 10 bytes aleatórios e converte para base32 random_bytes := gen_random_bytes(10); random_chars := ''; FOR i IN 0..9 LOOP random_chars := random_chars || substr(base32_chars, ((get_byte(random_bytes, i) >> 3) & 31) + 1, 1); IF i < 9 THEN random_chars := random_chars || substr(base32_chars, (((get_byte(random_bytes, i) & 7) << 2) | (get_byte(random_bytes, i + 1) >> 6)) & 31 + 1, 1); ELSE random_chars := random_chars || substr(base32_chars, ((get_byte(random_bytes, i) & 7) << 2) + 1, 1); END IF; END LOOP; -- Concatena o timestamp e os caracteres aleatórios RETURN ts_chars || random_chars;
END; $$ LANGUAGE plpgsql; ```
Exemplo de USO
```sql -- Criação da extensão caso não exista CREATE EXTENSION IF NOT EXISTS pgcrypto; -- Criação da tabela pessoas CREATE TABLE pessoas ( ID UUID DEFAULT gen_random_uuid ( ) PRIMARY KEY, nome TEXT NOT NULL );
-- Busca Pessoa na tabela SELECT * FROM "pessoas" WHERE uuid_to_ulid ( ID ) = '252FAC9F3V8EF80SSDK8PXW02F'; ```
Fontes
- https://github.com/scoville/pgsql-ulid
- https://github.com/geckoboard/pgulid
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@ e6817453:b0ac3c39
2024-12-07 14:52:47The temporal semantics and temporal and time-aware knowledge graphs. We have different memory models for artificial intelligence agents. We all try to mimic somehow how the brain works, or at least how the declarative memory of the brain works. We have the split of episodic memory and semantic memory. And we also have a lot of theories, right?
Declarative Memory of the Human Brain
How is the semantic memory formed? We all know that our brain stores semantic memory quite close to the concept we have with the personal knowledge graphs, that it’s connected entities. They form a connection with each other and all those things. So far, so good. And actually, then we have a lot of concepts, how the episodic memory and our experiences gets transmitted to the semantic:
- hippocampus indexing and retrieval
- sanitization of episodic memories
- episodic-semantic shift theory
They all give a different perspective on how different parts of declarative memory cooperate.
We know that episodic memories get semanticized over time. You have semantic knowledge without the notion of time, and probably, your episodic memory is just decayed.
But, you know, it’s still an open question:
do we want to mimic an AI agent’s memory as a human brain memory, or do we want to create something different?
It’s an open question to which we have no good answer. And if you go to the theory of neuroscience and check how episodic and semantic memory interfere, you will still find a lot of theories, yeah?
Some of them say that you have the hippocampus that keeps the indexes of the memory. Some others will say that you semantic the episodic memory. Some others say that you have some separate process that digests the episodic and experience to the semantics. But all of them agree on the plan that it’s operationally two separate areas of memories and even two separate regions of brain, and the semantic, it’s more, let’s say, protected.
So it’s harder to forget the semantical facts than the episodes and everything. And what I’m thinking about for a long time, it’s this, you know, the semantic memory.
Temporal Semantics
It’s memory about the facts, but you somehow mix the time information with the semantics. I already described a lot of things, including how we could combine time with knowledge graphs and how people do it.
There are multiple ways we could persist such information, but we all hit the wall because the complexity of time and the semantics of time are highly complex concepts.
Time in a Semantic context is not a timestamp.
What I mean is that when you have a fact, and you just mentioned that I was there at this particular moment, like, I don’t know, 15:40 on Monday, it’s already awake because we don’t know which Monday, right? So you need to give the exact date, but usually, you do not have experiences like that.
You do not record your memories like that, except you do the journaling and all of the things. So, usually, you have no direct time references. What I mean is that you could say that I was there and it was some event, blah, blah, blah.
Somehow, we form a chain of events that connect with each other and maybe will be connected to some period of time if we are lucky enough. This means that we could not easily represent temporal-aware information as just a timestamp or validity and all of the things.
For sure, the validity of the knowledge graphs (simple quintuple with start and end dates)is a big topic, and it could solve a lot of things. It could solve a lot of the time cases. It’s super simple because you give the end and start dates, and you are done, but it does not answer facts that have a relative time or time information in facts . It could solve many use cases but struggle with facts in an indirect temporal context. I like the simplicity of this idea. But the problem of this approach that in most cases, we simply don’t have these timestamps. We don’t have the timestamp where this information starts and ends. And it’s not modeling many events in our life, especially if you have the processes or ongoing activities or recurrent events.
I’m more about thinking about the time of semantics, where you have a time model as a hybrid clock or some global clock that does the partial ordering of the events. It’s mean that you have the chain of the experiences and you have the chain of the facts that have the different time contexts.
We could deduct the time from this chain of the events. But it’s a big, big topic for the research. But what I want to achieve, actually, it’s not separation on episodic and semantic memory. It’s having something in between.
Blockchain of connected events and facts
I call it temporal-aware semantics or time-aware knowledge graphs, where we could encode the semantic fact together with the time component.I doubt that time should be the simple timestamp or the region of the two timestamps. For me, it is more a chain for facts that have a partial order and form a blockchain like a database or a partially ordered Acyclic graph of facts that are temporally connected. We could have some notion of time that is understandable to the agent and a model that allows us to order the events and focus on what the agent knows and how to order this time knowledge and create the chains of the events.
Time anchors
We may have a particular time in the chain that allows us to arrange a more concrete time for the rest of the events. But it’s still an open topic for research. The temporal semantics gets split into a couple of domains. One domain is how to add time to the knowledge graphs. We already have many different solutions. I described them in my previous articles.
Another domain is the agent's memory and how the memory of the artificial intelligence treats the time. This one, it’s much more complex. Because here, we could not operate with the simple timestamps. We need to have the representation of time that are understandable by model and understandable by the agent that will work with this model. And this one, it’s way bigger topic for the research.”
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@ 06b7819d:d1d8327c
2024-11-29 13:26:00The Weaponization of Technology: A Prelude to Adoption
Throughout history, new technologies have often been weaponized before becoming widely adopted for civilian use. This pattern, deeply intertwined with human priorities for power, survival, and dominance, sheds light on how societies interact with technological innovation.
The Weaponization Imperative
When a groundbreaking technology emerges, its potential to confer an advantage—military, economic, or ideological—tends to attract attention from those in power. Governments and militaries, seeking to outpace rivals, often invest heavily in adapting new tools for conflict or defense. Weaponization provides a context where innovation thrives under high-stakes conditions. Technologies like radar, nuclear energy, and the internet, initially conceived or expanded within the framework of military priorities, exemplify this trend.
Historical Examples
1. Gunpowder: Invented in 9th-century China, gunpowder was first used for military purposes before transitioning into civilian life, influencing mining, construction, and entertainment through fireworks.
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The Internet: Initially developed as ARPANET during the Cold War to ensure communication in the event of a nuclear attack, the internet’s infrastructure later supported the global digital revolution, reshaping commerce, education, and social interaction.
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Drones: Unmanned aerial vehicles began as tools of surveillance and warfare but have since been adopted for everything from package delivery to agricultural monitoring.
Weaponization often spurs rapid technological development. War environments demand urgency and innovation, fast-tracking research and turning prototypes into functional tools. This phase of militarization ensures that the technology is robust, scalable, and often cost-effective, setting the stage for broader adoption.
Adoption and Civilian Integration
Once a technology’s military dominance is established, its applications often spill into civilian life. These transitions occur when:
• The technology becomes affordable and accessible. • Governments or corporations recognize its commercial potential. • Public awareness and trust grow, mitigating fears tied to its military origins.
For example, GPS was first a military navigation system but is now indispensable for personal devices, logistics, and autonomous vehicles.
Cultural Implications
The process of weaponization shapes public perception of technology. Media narratives, often dominated by stories of power and conflict, influence how societies view emerging tools. When technologies are initially seen through the lens of violence or control, their subsequent integration into daily life can carry residual concerns, from privacy to ethical implications.
Conclusion
The weaponization of technology is not an aberration but a recurring feature of technological progress. By understanding this pattern, societies can critically assess how technologies evolve from tools of conflict to instruments of everyday life, ensuring that ethical considerations and equitable access are not lost in the rush to innovate. As Marshall McLuhan might suggest, the medium through which a technology is introduced deeply influences the message it ultimately conveys to the world.
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2025-05-03 09:47:49ບົດຄວາມນີ້ແປມາຈາ: https://jackkruse.com/what-to-do-with-new-cancer-diagnosis/
ເນື້ອຫາສຳລັບຜູ້ອ່ານ: 1. ຈະເຮັດແນວໃດເມື່ອທ່ານໄດ້ຮັບການວິນິດໄສວ່າເປັນມະເຮັງ? 2. ສະໜາມຮົບກັບມະເຮັງທີ່ສຳຄັນແມ່ນຢູ່ບ່ອນການປິ່ນປົວແບບແພດ ຫຼື ໃນຮ່າງກາຍຂອງທ່ານເອງ? 3. ອາຫານການກິນມີບົດບາດແນວໃດ? 4. ຈະຮັບມືກັບໝໍມະເຮັງຄົນໃໝ່ຂອງທ່ານແນວໃດ? 5. ບໍ່ຕ້ອງຢ້ານທີ່ຈະສຳຫຼວດທຸກຄວາມເປັນໄປໄດ້ເພື່ອຊະນະສົງຄາມນີ້. ຮຽນຮູ້ກ່ຽວກັບອາຫານ ketogenic!!!
ກ່ອນທ່ານຈະອ່ານບົດຄວາມນີ້, ໃຫ້ເບິ່ງວິດີໂອນີ້: HYPERLINK
ບົດຄວາມນີ້ແມ່ນສຳລັບໜຶ່ງໃນໝູ່ທີ່ພິເສດຂອງຂ້ອຍ ຜູ້ທີ່ພົວພັນຂ້ອຍໃນອາທິດນີ້ ແລະ ບອກວ່າເມຍລາວຖືກວິນິດໄສວ່າເປັນມະເຮັງໃນໄວອາຍຸໜຸ່ມ. ຂ້ອຍໄດ້ຍິນຈາກການໂທ ແລະ ໂພສຂອງລາວໃນ Facebook ວ່າມັນກຳລັງທຳລາຍລາວ. ຂ້ອຍບອກລາວທັນທີໃຫ້ໄປຊື້ປື້ມ Anti Cancer: A New Way of Life ໂດຍ David Servan Schreiber ແລະ ມອບໃຫ້ເຈົ້າສາວຂອງລາວ. ຂ່າວດີກໍ່ຄືຫຼາຍລ້ານຄົນໃນຈຳນວນ 6 ລ້ານຄົນທີ່ກຳລັງປິ່ນປົວມະເຮັງໃນປະຈຸບັນຈະມີຊີວິດທີ່ສົມບູນຕໍ່ໄປ. ຈຳນວນຜູ້ລອດຊີວິດຕາມຄວາມຄິດເຫັນຂອງຂ້ອຍຍັງຕ່ຳເກີນໄປ (ປະມານ 45-50%). ນອກຈາກນັ້ນ, ຫຼາຍຄົນໃນຈຳນວນ 2000 ຄົນທີ່ເສຍຊີວິດຈາກມະເຮັງທຸກມື້ແມ່ນເນື່ອງຈາກຄອບຄົວຂອງພວກເຂົາບໍ່ຮູ້ກ່ຽວກັບຊັບພະຍາກອນທີ່ມີໃນປະຈຸບັນສຳລັບການປິ່ນປົວມະເຮັງທັງແບບດັ້ງເດີມ ແລະ ແບບທາງເລືອກ ເຊັ່ນ: ການປິ່ນປົວແບບເສີມ ຫຼື ແບບບູລະນາການ.
ເມື່ອຖືກວິນິດໄສດ້ວຍພະຍາດນີ້, ທ່ານຈະຮູ້ສຶກສັ່ນສະເທືອນຢ່າງຮຸນແຮງ. ສິ່ງສຳຄັນທີ່ທ່ານຕ້ອງຮູ້ແມ່ນພະຍາດນີ້ບໍ່ພຽງແຕ່ສາມາດຕໍ່ສູ້ໄດ້ແຕ່ຍັງສາມາດປ້ອງກັນໄດ້ຖ້າທ່ານຕັດສິນໃຈປ່ຽນແປງບາງສິ່ງທັນທີ ແລະ ປ່ອຍວາງຄວາມເຊື່ອທີ່ບໍ່ຖືກຕ້ອງທີ່ທ່ານໄດ້ສະສົມໃນຊີວິດ. ນີ້ເປັນຄວາມຈິງໂດຍສະເພາະຖ້າທ່ານເຮັດວຽກໃນຂົງເຂດສາທາລະນະສຸກ ແລະ ໄດ້ດຳລົງຊີວິດຕາມຄວາມເຊື່ອຕາຍຕົວຕະຫຼອດຊີວິດ. ປື້ມນີ້ຂຽນໂດຍແພດນັກຄົ້ນຄວ້າທີ່ບໍ່ພຽງແຕ່ຖືກກະທົບຈາກມະເຮັງ ແຕ່ຍັງເປັນມະເຮັງສະໝອງທີ່ອັນຕະລາຍທີ່ສຸດ. ລາວສາມາດຮື້ຖອນຄວາມເຊື່ອຂອງຕົນເອງໃນຖານະແພດດ້ວຍວິທະຍາສາດໃໝ່ທີ່ມີຢູ່ສຳລັບນັກຄົ້ນຄວ້າ ແຕ່ບໍ່ແມ່ນແພດມະເຮັງທົ່ວໄປ. ປື້ມນີ້ຈຳເປັນສຳລັບທຸກຄົນທີ່ເປັນມະເຮັງ ຫຼື ມີປັດໄຈສ່ຽງ ເພື່ອທ່ານຈະໄດ້ຊະນະກ່ອນມັນເລີ່ມ. ນີ້ແມ່ນໜຶ່ງໃນເຫດຜົນທີ່ຂ້ອຍຂຽນ QUILT ຂອງຂ້ອຍ ເພາະຂ້ອຍເຊື່ອວ່າຖ້າທ່ານປົກປ້ອງຈຸລັງຂອງທ່ານ ທ່ານຈະບໍ່ເປັນພະຍາດນີ້. ດຽວນີ້ ໝູ່ຂອງຂ້ອຍເປັນພະຍາດນີ້... ນີ້ແມ່ນບົດຄວາມກ່ຽວກັບສິ່ງທີ່ທ່ານອາດພິຈາລະນາເຮັດທັນທີຫຼັງຈາກປຶກສາກັບແພດມະເຮັງຂອງທ່ານ. ພິຈາລະນາຂໍຄວາມຄິດເຫັນທີສອງຈາກສູນມະເຮັງທີ່ສຳຄັນເຊັ່ນ MD Anderson.
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ອ່ານປື້ມ Anticancer ທີ່ກ່າວເຖິງຂ້າງເທິງ. ມັນສຳຄັນທີ່ຈະເຫັນພະຍາດນີ້ໃນມຸມມອງໃໝ່.
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ປ່ຽນອາຫານການກິນຂອງທ່ານທັນທີເປັນ Epi-paleo Rx ແລະ ອອກຫ່າງຈາກອາຫານແບບຕາເວັນຕົກມາດຕະຖານ.
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ເລີ່ມເຮັດສະມາທິໂດຍໄວເທົ່າທີ່ຈະເປັນໄປໄດ້ເພື່ອຄວບຄຸມ cortisol ແລະ ຄວາມກັງວົນຂອງທ່ານ. (ທາງເລືອກບໍ່ສຳຄັນແຕ່ການເຮັດຈິງຊ່ວຍຊີວິດໄດ້)
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ຄົນເຈັບຄວນປຶກສາຫາລືກ່ຽວກັບແຜນການປິ່ນປົວມະເຮັງ: ປັດໃຈສຳຄັນໃນມະເຮັງ: ຄວນຄົນເຈັບໃຊ້ອາຫານເສີມສຳລັບປະເພດມະເຮັງທີ່ທ່ານມີບໍ?
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ພິຈາລະນາເລີ່ມລະບົບອາຫານເສີມ ລວມເຖິງ Curcumin, Reservatrol, Quercetin, ນ້ຳມັນປາ Omega ສາມ (ຄຸນນະພາບ Rx), ວິຕາມິນ D3 ໂດຍມີເປົ້າໝາຍເກີນ 50 ng/dl, ການໃຊ້ CoEnZQ10 ເປັນປະຈຳທຸກວັນ, R-alpha lipoic acid ແລະ ວິຕາມິນ K ທຸກມື້. ພິຈາລະນາການໃຊ້ N Acetyl Cysteine ທຸກວັນເຊັ່ນກັນ. ສັງເກດວ່າຂ້ອຍບໍ່ໄດ້ກຳນົດປະລິມານເພາະປະລິມານທີ່ຕ້ອງການສຳລັບການບຳບັດມະເຮັງແມ່ນສູງກວ່າທີ່ຈະໃຊ້ໃນການປ້ອງກັນ. ສິ່ງນີ້ຄວນເຮັດພາຍໃຕ້ການປຶກສາກັບແພດມະເຮັງຂອງທ່ານ. ຖ້າແພດມະເຮັງຂອງທ່ານບໍ່ເປີດໃຈກວ້າງກ່ຽວກັບບັນຫາເຫຼົ່ານີ້... ຫຼັງຈາກອ່ານປື້ມໃນຂັ້ນຕອນທີໜຶ່ງ ທ່ານອາດຈະຕ້ອງຊອກຫາແພດມະເຮັງຄົນໃໝ່. ເຫຼົ່ານີ້ແມ່ນສິ່ງທີ່ຂ້ອຍພິຈາລະນາວ່າເປັນອາຫານເສີມຫຼັກສຳລັບມະເຮັງສ່ວນໃຫຍ່ທີ່ມະນຸດເປັນ.
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ໃນອາຫານຂອງທ່ານໃຫ້ເພີ່ມ ຂີ້ໝິ້ນ, ຂິງ, ກະທຽມ, ຣອດສະແມລີ, ແລະ ໃບແບຊິນ (ໃບໂຫລະພາ) ໃສ່ອາຫານຂອງທ່ານໃຫ້ຫຼາຍເທົ່າທີ່ຈະເປັນໄປໄດ້. ທ່ານຄວນດື່ມຊາຂຽວ 1 ລິດຕໍ່ມື້. ຊາຂຽວມີ L-Theanine ທີ່ຊ່ວຍຫຼຸດຄວາມກັງວົນ ແຕ່ຍັງເປັນສ່ວນເສີມຂອງຢາເຄມີບຳບັດໂດຍເຮັດໃຫ້ພວກມັນມີປະສິດທິພາບຍິ່ງຂຶ້ນ. ທ່ານຍັງສາມາດໃຊ້ສານສະກັດຊາຂຽວຖ້າທ່ານບໍ່ຕ້ອງການດື່ມຂອງແຫຼວຫຼາຍ ຫຼື ບໍ່ສາມາດດື່ມໄດ້ເນື່ອງຈາກສະພາບຂອງທ່ານ.
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ໃນປີ 1955 Otto Warburg ຜູ້ຊະນະລາງວັນໂນເບວພົບວ່າມະເຮັງທັງໝົດໃຊ້ນ້ຳຕານເປັນແຫຼ່ງພະລັງງານ ແລະ ລະດັບອິນຊູລິນສູງເຮັດໃຫ້ຮ່າງກາຍສູນເສຍການຄວບຄຸມລະບົບພູມຄຸ້ມກັນທີ່ຈະປ້ອງກັນມັນ. ນີ້ໝາຍຄວາມວ່າຄົນເຈັບຕ້ອງຈຳກັດທຸກສິ່ງທີ່ກະຕຸ້ນອິນຊູລິນ. ອາຫານແບບ Epi-paleo ທີ່ມີຄາໂບໄຮເດຣດຕ່ຳເຮັດໄດ້ແນວນີ້ພໍດີ. ຂໍ້ມູນອ້າງອີງທີ່ດີສຳລັບອາຫານແມ່ນຢູ່ບ່ອນນີ້.
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ລະບົບພູມຄຸ້ມກັນຂອງທ່ານແມ່ນການປ້ອງກັນທີ່ດີທີ່ສຸດຕໍ່ມະເຮັງ. ເພີ່ມລະດັບວິຕາມິນ D ແລະ ຮັກສາລະດັບອິນຊູລິນໃຫ້ຕ່ຳກວ່າສອງ. ການຫຼຸດລະດັບ cortisol ຈະປັບປຸງ leptin ແຕ່ສິ່ງສຳຄັນທີ່ສຸດແມ່ນເພີ່ມຈຳນວນຈຸລັງ Natural Killer (WBC) ທີ່ເປັນສ່ວນໜຶ່ງຂອງລະບົບພູມຄຸ້ມກັນໃນຈຸລັງທີ່ຕໍ່ສູ້ກັບມະເຮັງ. ທ່ານຈະໄດ້ອ່ານຫຼາຍກ່ຽວກັບຈຸລັງເຫຼົ່ານີ້ໃນປື້ມທີ່ຂ້ອຍແນະນຳໃນຂັ້ນຕອນທີໜຶ່ງ.
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ຜັກ. ເຮັດໃຫ້ຜັກຕະກຸນ cruciferous ເປັນອາຫານຫຼັກ. ພືດທັງໝົດໃນຕະກຸນ Brassica ແມ່ນໝູ່ຂອງທ່ານ. Glucosinolates ສາມາດຢັບຢັ້ງ, ຊະລໍ, ແລະ ປີ້ນການເກີດມະເຮັງຫຼາຍຂັ້ນຕອນ. ເຫດຜົນແມ່ນການປ່ອຍ isothiocyanates ເຊັ່ນ sulphoraphanes. Sulphoraphanes ເຮັດສອງສິ່ງຫຼັກ. ພວກມັນສົ່ງເສີມ apoptosis (levee 19) ແລະ ກະຕຸ້ນເອນໄຊມ໌ detoxification ໄລຍະສອງໃນຕັບທີ່ເສີມຄວາມເຂັ້ມແຂງໃຫ້ກັບຍີນ p53 ເປັນຜູ້ປົກປ້ອງຈີໂນມຂອງພວກເຮົາ. ຈຸລັງມະເຮັງມັກຈະຕາຍ (necrosis) ເມື່ອສຳຜັດກັບ sulphoraphanes ຢ່າງຕໍ່ເນື່ອງເປັນເວລາດົນ. ຜັກບຣອກໂຄລີຍັງມີສານ metabolite ຂັ້ນສອງທີ່ເອີ້ນວ່າ Indole 3 Carbinol ທີ່ແຕກຕົວຕໍ່ໄປເປັນສານຕ້ານມະເຮັງອີກຊະນິດໜຶ່ງຊື່ວ່າ DIM, diindolylmethane. ທ່ານບໍ່ສາມາດກິນຜັກພວກນີ້ຫຼາຍພໍຖ້າທ່ານເປັນມະເຮັງໃນທັດສະນະຂອງຂ້ອຍ. I3C ຍັງຂັດຂວາງ 16-hydroxyestrone ແລະ ມີປະໂຫຍດຫຼາຍໃນການປ້ອງກັນມະເຮັງເຕົ້ານົມ ແລະ ມະເຮັງຮັງໄຂ່ໃນແມ່ຍິງ ແລະ ມະເຮັງຕ່ອມລູກໝາກໃນຜູ້ຊາຍ.
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ນີ້ແມ່ນສິ່ງທີ່ຂັດກັບຄວາມເຊື່ອຊຶ່ງຢູ່ໃນຫົວຂອງທ່ານ... ກິນ cholesterol ຫຼາຍໆ. ໂດຍສະເພາະນ້ຳມັນໝາກພ້າວ. ຫຼາຍການສຶກສາທາງລະບາດວິທະຍາສະແດງໃຫ້ເຫັນວ່າລະດັບ cholesterol ໃນເລືອດຕ່ຳສຳພັນກັບອັດຕາການເກີດມະເຮັງສູງ. ນີ້ແມ່ນເຫດຜົນທີ່ການກິນອາຫານ ketogenic Epi-paleo ມີຄວາມໝາຍຫຼາຍ. ເປັນຫຍັງອາຫານແບບ ketogenic? ເພາະມະເຮັງທັງໝົດໃຊ້ກລູໂຄສເປັນວັດຖຸດິບ. ທ່ານຈຳເປັນຕ້ອງປ່ຽນເຊື້ອໄຟຂອງຈຸລັງ. ໄປຊອກຫາ Otto Warburg ໃນ Google ສຳລັບລາຍລະອຽດເພີ່ມເຕີມ. ອາຫານແບບ ketogenic ຄວນມີ MCT ຈາກນ້ຳມັນໝາກພ້າວຫຼາຍ ເພາະພວກມັນໃຫ້ຂໍ້ໄດ້ປຽບຫຼາຍແກ່ຈຸລັງປົກກະຕິກວ່າຈຸລັງມະເຮັງ. ຂໍ້ໄດ້ປຽບນີ້ເຮັດໃຫ້ລະບົບພູມຄຸ້ມກັນຂອງທ່ານສາມາດຕາມທັນຈຸລັງມະເຮັງ ແລະ ທຳລາຍພວກມັນໂດຍໃຊ້ກົນໄກຊີວະວິທະຍາຂອງທ່ານເອງ. ມີຫຼາຍບົດຄວາມໃນວາລະສານມະເຮັງທີ່ພິມເຜີຍແຜ່ສະແດງໃຫ້ເຫັນການເຊື່ອມໂຍງແບບດຽວກັນ.
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@ 7e538978:a5987ab6
2025-05-20 14:10:38🧑💻🚀 This bounty has now been claimed - Read more here 🧑💻🚀🧑💻🚀
Bounty Specification: Implement a Nostr Wallet Connect Funding Source for LNbits
Project Overview
This project involves the development of a funding source within LNbits that can use a remote NWC wallet service.
Objective
To create a NWC funding source for LNbits that allows for lightning network operations using a remote Nostr Wallet Connect wallet service. This funding source should implement all funding source functions using NWC as defined in the Void funding source stub - https://github.com/lnbits/lnbits/blob/dev/lnbits/wallets/void.py
Deliverables
- NWC Funding Source: Robust funding source for LNbits that implements all funding source functions using NIP-47.
- Documentation: Comprehensive guide including:
- Installation and configuration processes.
- Configuration guidelines to connect with various NWC wallet services.
- Test Suite: Complete set of tests ensuring the functionality works under various scenarios and adheres to the NIP-47 protocol.
- Demonstration: A working demonstration of LNbits acting as a NWC client, performing transactions using a NWC wallet service.
Requirements
- The extension should be implemented in Python to align with the existing LNbits platform.
- Follow the NIP-47 protocol.
- Integration should support asynchronous operations to handle real-time transaction confirmations.
Budget
- Total Bounty: 750,000 sats
- Payment will be made upon final delivery, after successful testing and documentation review.
Evaluation Criteria
- Adherence to the NIP-47 specifications and LNbits integration requirements.
- Security and efficiency of the implementation.
- Quality of documentation and ease of use.
How to Apply
Get in touch with us in the LNbits Telegram channel
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@ 7e538978:a5987ab6
2025-05-20 14:10:14🧑💻🚀 This bounty has now been claimed - Read more here 🧑💻🚀
Bounty Specification: Build a Nostr Wallet Connect Wallet Service Extension for LNbits
Project Overview
This project aims to build a Nostr Wallet Connect (NWC) extension for LNbits to allow LNbits to act as a NWC Wallet Service as defined in NIP-47 https://github.com/nostr-protocol/nips/blob/master/47.md
LNbits has an example extension that can be used as a starting point on your extension development journey. Watch the extension build tutorial video here
Objective
To develop a fully functional NWC Wallet Service extension that adheres to the NIP-47 protocol specifications, enabling the following capabilities:
- Generation and handling of Nostr Wallet Connect URIs.
- Processing of payment requests including
pay_invoice
,make_invoice
,lookup_invoice
,list_transactions
,get_balance
,multi_pay_invoice
,pay_keysend
,multi_pay_keysend
andget_info
- Creation and lookup of invoices.
- List and balance querying functionalities.
- Secure communication through encrypted events as per NIP04.
- Implementation of error codes
- Implementation of connection rules with control of the following:
Maximum payment amount
,maximum daily budget
,connection expiry date
(never expire should be an option) denominated in sats.
Deliverables
- NWC Wallet Service Extension Code: Clean, commented, and secure codebase that uses the existing LNbits
nostrclient.py
functionality and an LNbits funding source to provide a NWC Wallet Service. - NWC Wallet Service Extension UI: A user interface within the extension that allows a user to connect a new app to the NWC wallet service and edit existing connections. The app connection should allow control of the following rules:
Maximum payment amountMaximum daily budgetConnection expiry date
(never expire should be an option) - Documentation: Documentation covering:
- Setup and configuration instructions.
- Usage examples.
- Test Suite: A comprehensive test suite covering all key functionality
Technology Requirements
- The extension must be developed in Python, consistent with the LNbits platform.
- Use of existing LNbits libraries and adherence to its architectural style is required.
- NIP-47 specification must be adhered to.
Budget
- Total Bounty: 750,000 sats
- Payment will be made upon final delivery, after successful testing and documentation review.
Evaluation Criteria
- Adherence to the NIP-47 specifications and LNbits integration requirements.
- Security and efficiency of the implementation.
- Quality of documentation and ease of use.
How to Apply
Get in touch with us in the LNbits Telegram channel
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@ 57d1a264:69f1fee1
2025-05-16 07:51:08Payjoin allows the sender and receiver of an on-chain payment to collaborate and create a transaction that breaks on-chain heuristics, allowing a more private transaction with ambiguous payment amount and UTXO ownership. Additionally, it can also be used for UTXO consolidation (receiver saves future fees) and batching payments (receiver can make payment(s) of their own in the process of receiving one), also known as transaction cut-through. Other than improved privacy, the rest of the benefits are typically applicable to the receiver, not the sender.
BIP-78 was the original payjoin protocol that required the receiver to run a endpoint/server (always online) in order to mediate the payjoin process. Payjoin adoption has remained pretty low, something attributed to the server & perpetual online-ness requirement. This is the motivation for payjoin v2.
The purpose of the one-pager is to analyse the protocol, and highlight the UX issues or tradeoffs it entails, so that the payjoin user flows can be appropriately designed and the tradeoffs likewise communicated. A further document on UX solutions might be needed to identify solutions and opportunities
The following observations are generally limited to individual users transacting through their mobile devices:
While users naturally want better privacy and fee-savings, they also want to minimise friction and minimise (optimise) payment time. These are universal and more immediate needs since they deal with the user experience.
Added manual steps
TL;DR v2 payjoin eliminates server & simultaneous user-liveness requirements (increasing TAM, and opportunities to payjoin, as a result) by adding manual steps.
Usually, the extent of the receiver's involvement in the transaction process is limited to sharing their address with the sender. Once they share the address/URI, they can basically forget about it. In the target scenario for v2 payjoin, the receiver must come online again (except they have no way of knowing "when") to contribute input(s) and sign the PSBT. This can be unexpected, unintuitive and a bit of a hassle.
Usually (and even with payjoin v1), the sender crafts and broadcasts the transaction in one go; meaning the user's job is done within a few seconds/minutes. With payjoin v2, they must share the original-PSBT with the receiver, and then wait for them to do their part. Once the the receiver has done that, the sender must come online to review the transaction, sign it & broadcast.
In summary,
In payjoin v1, step 3 is automated and instant, so delay 2, 3 =~ 0. As the user experiences it, the process is completed in a single session, akin to a non-payjoin transaction.
With payjoin v2, Steps 2 & 3 in the above diagram are widely spread and noticeable. These manual steps are separated by uncertain delays (more on that below) when compared to a non-payjoin transaction.
Delays
We've established that both senders and receivers must take extra manual steps to execute a payoin transaction. With payjoin v2, this process gets split into multiple sessions, since the sender and receiver are not like to be online simultaneously.
Delay 2 & 3 (see diagram above) are uncertain in nature. Most users do not open their bitcoin wallets for days or weeks! The receiver must come online before the timeout hits in order for the payjoin process to work, otherwise time is just wasted with no benefit. UX or technical solutions are needed to minimise these delays.
Delays might be exacerbated if the setup is based on hardware wallet and/or uses multisig.
Notifications or background processes
There is one major problem when we say "the user must come online to..." but in reality the user has no way of knowing there is a payjoin PSBT waiting for them. After a PSBT is sent to the relay, the opposite user would only find out about it whenever they happen to come online. Notifications and background sync processes might be necessary to minimise delays. This is absolutely essential to avert timeouts in addition to saving valuable time. Another risk is phantom payjoin stuff after the timeout is expired if receiver-side does not know it has.
Fee Savings
The following observations might be generally applicable for both original and this v2 payjoin version. Fee-savings with payjoin is a tricky topic. Of course, overall a payjoin transaction is always cheaper than 2 separate transactions, since they get to share the overhead.
Additionally, without the receiver contributing to fees, the chosen fee rate of the PSBT (at the beginning) drops, and can lead to slower confirmation. From another perspective, a sender paying with payjoin pays higher fees for similar confirmation target. This has been observed in a production wallet years back. Given that total transaction time can extend to days, the fee environment itself might change, and all this must be considered when designing the UX.
Of course, there is nothing stopping the receiver from contributing to fees, but this idea is likely entirely novel to the bitcoin ecosystem (perhaps payments ecosystem in general) and the user base. Additionally, nominally it involves the user paying fees and tolerating delays just to receive bitcoin. Without explicit incentives/features that encourage receivers to participate, payjoining might seem like an unncessary hassle.
Overall, it seems that payjoin makes UX significant tradeoffs for important privacy (and potential fee-saving) benefits. This means that the UX might have to do significant heavy-lifting, to ensure that users are not surprised, confused or frustrated when they try to transact on-chain in a privacy-friendly feature. Good, timely communication, new features for consolidation & txn-cutthrough and guided user flows seem crucial to ensure payjoin adoption and for help make on-chain privacy a reality for users.
---------------
Original document available here. Reach out at
yashrajdca@proton.me
,y_a_s_h_r_a_j.70
on Signal, or on reach out in Bitcoin Design discord.https://stacker.news/items/981388
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@ 21335073:a244b1ad
2025-03-18 14:43:08Warning: This piece contains a conversation about difficult topics. Please proceed with caution.
TL;DR please educate your children about online safety.
Julian Assange wrote in his 2012 book Cypherpunks, “This book is not a manifesto. There isn’t time for that. This book is a warning.” I read it a few times over the past summer. Those opening lines definitely stood out to me. I wish we had listened back then. He saw something about the internet that few had the ability to see. There are some individuals who are so close to a topic that when they speak, it’s difficult for others who aren’t steeped in it to visualize what they’re talking about. I didn’t read the book until more recently. If I had read it when it came out, it probably would have sounded like an unknown foreign language to me. Today it makes more sense.
This isn’t a manifesto. This isn’t a book. There is no time for that. It’s a warning and a possible solution from a desperate and determined survivor advocate who has been pulling and unraveling a thread for a few years. At times, I feel too close to this topic to make any sense trying to convey my pathway to my conclusions or thoughts to the general public. My hope is that if nothing else, I can convey my sense of urgency while writing this. This piece is a watchman’s warning.
When a child steps online, they are walking into a new world. A new reality. When you hand a child the internet, you are handing them possibilities—good, bad, and ugly. This is a conversation about lowering the potential of negative outcomes of stepping into that new world and how I came to these conclusions. I constantly compare the internet to the road. You wouldn’t let a young child run out into the road with no guidance or safety precautions. When you hand a child the internet without any type of guidance or safety measures, you are allowing them to play in rush hour, oncoming traffic. “Look left, look right for cars before crossing.” We almost all have been taught that as children. What are we taught as humans about safety before stepping into a completely different reality like the internet? Very little.
I could never really figure out why many folks in tech, privacy rights activists, and hackers seemed so cold to me while talking about online child sexual exploitation. I always figured that as a survivor advocate for those affected by these crimes, that specific, skilled group of individuals would be very welcoming and easy to talk to about such serious topics. I actually had one hacker laugh in my face when I brought it up while I was looking for answers. I thought maybe this individual thought I was accusing them of something I wasn’t, so I felt bad for asking. I was constantly extremely disappointed and would ask myself, “Why don’t they care? What could I say to make them care more? What could I say to make them understand the crisis and the level of suffering that happens as a result of the problem?”
I have been serving minor survivors of online child sexual exploitation for years. My first case serving a survivor of this specific crime was in 2018—a 13-year-old girl sexually exploited by a serial predator on Snapchat. That was my first glimpse into this side of the internet. I won a national award for serving the minor survivors of Twitter in 2023, but I had been working on that specific project for a few years. I was nominated by a lawyer representing two survivors in a legal battle against the platform. I’ve never really spoken about this before, but at the time it was a choice for me between fighting Snapchat or Twitter. I chose Twitter—or rather, Twitter chose me. I heard about the story of John Doe #1 and John Doe #2, and I was so unbelievably broken over it that I went to war for multiple years. I was and still am royally pissed about that case. As far as I was concerned, the John Doe #1 case proved that whatever was going on with corporate tech social media was so out of control that I didn’t have time to wait, so I got to work. It was reading the messages that John Doe #1 sent to Twitter begging them to remove his sexual exploitation that broke me. He was a child begging adults to do something. A passion for justice and protecting kids makes you do wild things. I was desperate to find answers about what happened and searched for solutions. In the end, the platform Twitter was purchased. During the acquisition, I just asked Mr. Musk nicely to prioritize the issue of detection and removal of child sexual exploitation without violating digital privacy rights or eroding end-to-end encryption. Elon thanked me multiple times during the acquisition, made some changes, and I was thanked by others on the survivors’ side as well.
I still feel that even with the progress made, I really just scratched the surface with Twitter, now X. I left that passion project when I did for a few reasons. I wanted to give new leadership time to tackle the issue. Elon Musk made big promises that I knew would take a while to fulfill, but mostly I had been watching global legislation transpire around the issue, and frankly, the governments are willing to go much further with X and the rest of corporate tech than I ever would. My work begging Twitter to make changes with easier reporting of content, detection, and removal of child sexual exploitation material—without violating privacy rights or eroding end-to-end encryption—and advocating for the minor survivors of the platform went as far as my principles would have allowed. I’m grateful for that experience. I was still left with a nagging question: “How did things get so bad with Twitter where the John Doe #1 and John Doe #2 case was able to happen in the first place?” I decided to keep looking for answers. I decided to keep pulling the thread.
I never worked for Twitter. This is often confusing for folks. I will say that despite being disappointed in the platform’s leadership at times, I loved Twitter. I saw and still see its value. I definitely love the survivors of the platform, but I also loved the platform. I was a champion of the platform’s ability to give folks from virtually around the globe an opportunity to speak and be heard.
I want to be clear that John Doe #1 really is my why. He is the inspiration. I am writing this because of him. He represents so many globally, and I’m still inspired by his bravery. One child’s voice begging adults to do something—I’m an adult, I heard him. I’d go to war a thousand more lifetimes for that young man, and I don’t even know his name. Fighting has been personally dark at times; I’m not even going to try to sugarcoat it, but it has been worth it.
The data surrounding the very real crime of online child sexual exploitation is available to the public online at any time for anyone to see. I’d encourage you to go look at the data for yourself. I believe in encouraging folks to check multiple sources so that you understand the full picture. If you are uncomfortable just searching around the internet for information about this topic, use the terms “CSAM,” “CSEM,” “SG-CSEM,” or “AI Generated CSAM.” The numbers don’t lie—it’s a nightmare that’s out of control. It’s a big business. The demand is high, and unfortunately, business is booming. Organizations collect the data, tech companies often post their data, governments report frequently, and the corporate press has covered a decent portion of the conversation, so I’m sure you can find a source that you trust.
Technology is changing rapidly, which is great for innovation as a whole but horrible for the crime of online child sexual exploitation. Those wishing to exploit the vulnerable seem to be adapting to each technological change with ease. The governments are so far behind with tackling these issues that as I’m typing this, it’s borderline irrelevant to even include them while speaking about the crime or potential solutions. Technology is changing too rapidly, and their old, broken systems can’t even dare to keep up. Think of it like the governments’ “War on Drugs.” Drugs won. In this case as well, the governments are not winning. The governments are talking about maybe having a meeting on potentially maybe having legislation around the crimes. The time to have that meeting would have been many years ago. I’m not advocating for governments to legislate our way out of this. I’m on the side of educating and innovating our way out of this.
I have been clear while advocating for the minor survivors of corporate tech platforms that I would not advocate for any solution to the crime that would violate digital privacy rights or erode end-to-end encryption. That has been a personal moral position that I was unwilling to budge on. This is an extremely unpopular and borderline nonexistent position in the anti-human trafficking movement and online child protection space. I’m often fearful that I’m wrong about this. I have always thought that a better pathway forward would have been to incentivize innovation for detection and removal of content. I had no previous exposure to privacy rights activists or Cypherpunks—actually, I came to that conclusion by listening to the voices of MENA region political dissidents and human rights activists. After developing relationships with human rights activists from around the globe, I realized how important privacy rights and encryption are for those who need it most globally. I was simply unwilling to give more power, control, and opportunities for mass surveillance to big abusers like governments wishing to enslave entire nations and untrustworthy corporate tech companies to potentially end some portion of abuses online. On top of all of it, it has been clear to me for years that all potential solutions outside of violating digital privacy rights to detect and remove child sexual exploitation online have not yet been explored aggressively. I’ve been disappointed that there hasn’t been more of a conversation around preventing the crime from happening in the first place.
What has been tried is mass surveillance. In China, they are currently under mass surveillance both online and offline, and their behaviors are attached to a social credit score. Unfortunately, even on state-run and controlled social media platforms, they still have child sexual exploitation and abuse imagery pop up along with other crimes and human rights violations. They also have a thriving black market online due to the oppression from the state. In other words, even an entire loss of freedom and privacy cannot end the sexual exploitation of children online. It’s been tried. There is no reason to repeat this method.
It took me an embarrassingly long time to figure out why I always felt a slight coldness from those in tech and privacy-minded individuals about the topic of child sexual exploitation online. I didn’t have any clue about the “Four Horsemen of the Infocalypse.” This is a term coined by Timothy C. May in 1988. I would have been a child myself when he first said it. I actually laughed at myself when I heard the phrase for the first time. I finally got it. The Cypherpunks weren’t wrong about that topic. They were so spot on that it is borderline uncomfortable. I was mad at first that they knew that early during the birth of the internet that this issue would arise and didn’t address it. Then I got over it because I realized that it wasn’t their job. Their job was—is—to write code. Their job wasn’t to be involved and loving parents or survivor advocates. Their job wasn’t to educate children on internet safety or raise awareness; their job was to write code.
They knew that child sexual abuse material would be shared on the internet. They said what would happen—not in a gleeful way, but a prediction. Then it happened.
I equate it now to a concrete company laying down a road. As you’re pouring the concrete, you can say to yourself, “A terrorist might travel down this road to go kill many, and on the flip side, a beautiful child can be born in an ambulance on this road.” Who or what travels down the road is not their responsibility—they are just supposed to lay the concrete. I’d never go to a concrete pourer and ask them to solve terrorism that travels down roads. Under the current system, law enforcement should stop terrorists before they even make it to the road. The solution to this specific problem is not to treat everyone on the road like a terrorist or to not build the road.
So I understand the perceived coldness from those in tech. Not only was it not their job, but bringing up the topic was seen as the equivalent of asking a free person if they wanted to discuss one of the four topics—child abusers, terrorists, drug dealers, intellectual property pirates, etc.—that would usher in digital authoritarianism for all who are online globally.
Privacy rights advocates and groups have put up a good fight. They stood by their principles. Unfortunately, when it comes to corporate tech, I believe that the issue of privacy is almost a complete lost cause at this point. It’s still worth pushing back, but ultimately, it is a losing battle—a ticking time bomb.
I do think that corporate tech providers could have slowed down the inevitable loss of privacy at the hands of the state by prioritizing the detection and removal of CSAM when they all started online. I believe it would have bought some time, fewer would have been traumatized by that specific crime, and I do believe that it could have slowed down the demand for content. If I think too much about that, I’ll go insane, so I try to push the “if maybes” aside, but never knowing if it could have been handled differently will forever haunt me. At night when it’s quiet, I wonder what I would have done differently if given the opportunity. I’ll probably never know how much corporate tech knew and ignored in the hopes that it would go away while the problem continued to get worse. They had different priorities. The most voiceless and vulnerable exploited on corporate tech never had much of a voice, so corporate tech providers didn’t receive very much pushback.
Now I’m about to say something really wild, and you can call me whatever you want to call me, but I’m going to say what I believe to be true. I believe that the governments are either so incompetent that they allowed the proliferation of CSAM online, or they knowingly allowed the problem to fester long enough to have an excuse to violate privacy rights and erode end-to-end encryption. The US government could have seized the corporate tech providers over CSAM, but I believe that they were so useful as a propaganda arm for the regimes that they allowed them to continue virtually unscathed.
That season is done now, and the governments are making the issue a priority. It will come at a high cost. Privacy on corporate tech providers is virtually done as I’m typing this. It feels like a death rattle. I’m not particularly sure that we had much digital privacy to begin with, but the illusion of a veil of privacy feels gone.
To make matters slightly more complex, it would be hard to convince me that once AI really gets going, digital privacy will exist at all.
I believe that there should be a conversation shift to preserving freedoms and human rights in a post-privacy society.
I don’t want to get locked up because AI predicted a nasty post online from me about the government. I’m not a doomer about AI—I’m just going to roll with it personally. I’m looking forward to the positive changes that will be brought forth by AI. I see it as inevitable. A bit of privacy was helpful while it lasted. Please keep fighting to preserve what is left of privacy either way because I could be wrong about all of this.
On the topic of AI, the addition of AI to the horrific crime of child sexual abuse material and child sexual exploitation in multiple ways so far has been devastating. It’s currently out of control. The genie is out of the bottle. I am hopeful that innovation will get us humans out of this, but I’m not sure how or how long it will take. We must be extremely cautious around AI legislation. It should not be illegal to innovate even if some bad comes with the good. I don’t trust that the governments are equipped to decide the best pathway forward for AI. Source: the entire history of the government.
I have been personally negatively impacted by AI-generated content. Every few days, I get another alert that I’m featured again in what’s called “deep fake pornography” without my consent. I’m not happy about it, but what pains me the most is the thought that for a period of time down the road, many globally will experience what myself and others are experiencing now by being digitally sexually abused in this way. If you have ever had your picture taken and posted online, you are also at risk of being exploited in this way. Your child’s image can be used as well, unfortunately, and this is just the beginning of this particular nightmare. It will move to more realistic interpretations of sexual behaviors as technology improves. I have no brave words of wisdom about how to deal with that emotionally. I do have hope that innovation will save the day around this specific issue. I’m nervous that everyone online will have to ID verify due to this issue. I see that as one possible outcome that could help to prevent one problem but inadvertently cause more problems, especially for those living under authoritarian regimes or anyone who needs to remain anonymous online. A zero-knowledge proof (ZKP) would probably be the best solution to these issues. There are some survivors of violence and/or sexual trauma who need to remain anonymous online for various reasons. There are survivor stories available online of those who have been abused in this way. I’d encourage you seek out and listen to their stories.
There have been periods of time recently where I hesitate to say anything at all because more than likely AI will cover most of my concerns about education, awareness, prevention, detection, and removal of child sexual exploitation online, etc.
Unfortunately, some of the most pressing issues we’ve seen online over the last few years come in the form of “sextortion.” Self-generated child sexual exploitation (SG-CSEM) numbers are continuing to be terrifying. I’d strongly encourage that you look into sextortion data. AI + sextortion is also a huge concern. The perpetrators are using the non-sexually explicit images of children and putting their likeness on AI-generated child sexual exploitation content and extorting money, more imagery, or both from minors online. It’s like a million nightmares wrapped into one. The wild part is that these issues will only get more pervasive because technology is harnessed to perpetuate horror at a scale unimaginable to a human mind.
Even if you banned phones and the internet or tried to prevent children from accessing the internet, it wouldn’t solve it. Child sexual exploitation will still be with us until as a society we start to prevent the crime before it happens. That is the only human way out right now.
There is no reset button on the internet, but if I could go back, I’d tell survivor advocates to heed the warnings of the early internet builders and to start education and awareness campaigns designed to prevent as much online child sexual exploitation as possible. The internet and technology moved quickly, and I don’t believe that society ever really caught up. We live in a world where a child can be groomed by a predator in their own home while sitting on a couch next to their parents watching TV. We weren’t ready as a species to tackle the fast-paced algorithms and dangers online. It happened too quickly for parents to catch up. How can you parent for the ever-changing digital world unless you are constantly aware of the dangers?
I don’t think that the internet is inherently bad. I believe that it can be a powerful tool for freedom and resistance. I’ve spoken a lot about the bad online, but there is beauty as well. We often discuss how victims and survivors are abused online; we rarely discuss the fact that countless survivors around the globe have been able to share their experiences, strength, hope, as well as provide resources to the vulnerable. I do question if giving any government or tech company access to censorship, surveillance, etc., online in the name of serving survivors might not actually impact a portion of survivors negatively. There are a fair amount of survivors with powerful abusers protected by governments and the corporate press. If a survivor cannot speak to the press about their abuse, the only place they can go is online, directly or indirectly through an independent journalist who also risks being censored. This scenario isn’t hard to imagine—it already happened in China. During #MeToo, a survivor in China wanted to post their story. The government censored the post, so the survivor put their story on the blockchain. I’m excited that the survivor was creative and brave, but it’s terrifying to think that we live in a world where that situation is a necessity.
I believe that the future for many survivors sharing their stories globally will be on completely censorship-resistant and decentralized protocols. This thought in particular gives me hope. When we listen to the experiences of a diverse group of survivors, we can start to understand potential solutions to preventing the crimes from happening in the first place.
My heart is broken over the gut-wrenching stories of survivors sexually exploited online. Every time I hear the story of a survivor, I do think to myself quietly, “What could have prevented this from happening in the first place?” My heart is with survivors.
My head, on the other hand, is full of the understanding that the internet should remain free. The free flow of information should not be stopped. My mind is with the innocent citizens around the globe that deserve freedom both online and offline.
The problem is that governments don’t only want to censor illegal content that violates human rights—they create legislation that is so broad that it can impact speech and privacy of all. “Don’t you care about the kids?” Yes, I do. I do so much that I’m invested in finding solutions. I also care about all citizens around the globe that deserve an opportunity to live free from a mass surveillance society. If terrorism happens online, I should not be punished by losing my freedom. If drugs are sold online, I should not be punished. I’m not an abuser, I’m not a terrorist, and I don’t engage in illegal behaviors. I refuse to lose freedom because of others’ bad behaviors online.
I want to be clear that on a long enough timeline, the governments will decide that they can be better parents/caregivers than you can if something isn’t done to stop minors from being sexually exploited online. The price will be a complete loss of anonymity, privacy, free speech, and freedom of religion online. I find it rather insulting that governments think they’re better equipped to raise children than parents and caretakers.
So we can’t go backwards—all that we can do is go forward. Those who want to have freedom will find technology to facilitate their liberation. This will lead many over time to decentralized and open protocols. So as far as I’m concerned, this does solve a few of my worries—those who need, want, and deserve to speak freely online will have the opportunity in most countries—but what about online child sexual exploitation?
When I popped up around the decentralized space, I was met with the fear of censorship. I’m not here to censor you. I don’t write code. I couldn’t censor anyone or any piece of content even if I wanted to across the internet, no matter how depraved. I don’t have the skills to do that.
I’m here to start a conversation. Freedom comes at a cost. You must always fight for and protect your freedom. I can’t speak about protecting yourself from all of the Four Horsemen because I simply don’t know the topics well enough, but I can speak about this one topic.
If there was a shortcut to ending online child sexual exploitation, I would have found it by now. There isn’t one right now. I believe that education is the only pathway forward to preventing the crime of online child sexual exploitation for future generations.
I propose a yearly education course for every child of all school ages, taught as a standard part of the curriculum. Ideally, parents/caregivers would be involved in the education/learning process.
Course: - The creation of the internet and computers - The fight for cryptography - The tech supply chain from the ground up (example: human rights violations in the supply chain) - Corporate tech - Freedom tech - Data privacy - Digital privacy rights - AI (history-current) - Online safety (predators, scams, catfishing, extortion) - Bitcoin - Laws - How to deal with online hate and harassment - Information on who to contact if you are being abused online or offline - Algorithms - How to seek out the truth about news, etc., online
The parents/caregivers, homeschoolers, unschoolers, and those working to create decentralized parallel societies have been an inspiration while writing this, but my hope is that all children would learn this course, even in government ran schools. Ideally, parents would teach this to their own children.
The decentralized space doesn’t want child sexual exploitation to thrive. Here’s the deal: there has to be a strong prevention effort in order to protect the next generation. The internet isn’t going anywhere, predators aren’t going anywhere, and I’m not down to let anyone have the opportunity to prove that there is a need for more government. I don’t believe that the government should act as parents. The governments have had a chance to attempt to stop online child sexual exploitation, and they didn’t do it. Can we try a different pathway forward?
I’d like to put myself out of a job. I don’t want to ever hear another story like John Doe #1 ever again. This will require work. I’ve often called online child sexual exploitation the lynchpin for the internet. It’s time to arm generations of children with knowledge and tools. I can’t do this alone.
Individuals have fought so that I could have freedom online. I want to fight to protect it. I don’t want child predators to give the government any opportunity to take away freedom. Decentralized spaces are as close to a reset as we’ll get with the opportunity to do it right from the start. Start the youth off correctly by preventing potential hazards to the best of your ability.
The good news is anyone can work on this! I’d encourage you to take it and run with it. I added the additional education about the history of the internet to make the course more educational and fun. Instead of cleaning up generations of destroyed lives due to online sexual exploitation, perhaps this could inspire generations of those who will build our futures. Perhaps if the youth is armed with knowledge, they can create more tools to prevent the crime.
This one solution that I’m suggesting can be done on an individual level or on a larger scale. It should be adjusted depending on age, learning style, etc. It should be fun and playful.
This solution does not address abuse in the home or some of the root causes of offline child sexual exploitation. My hope is that it could lead to some survivors experiencing abuse in the home an opportunity to disclose with a trusted adult. The purpose for this solution is to prevent the crime of online child sexual exploitation before it occurs and to arm the youth with the tools to contact safe adults if and when it happens.
In closing, I went to hell a few times so that you didn’t have to. I spoke to the mothers of survivors of minors sexually exploited online—their tears could fill rivers. I’ve spoken with political dissidents who yearned to be free from authoritarian surveillance states. The only balance that I’ve found is freedom online for citizens around the globe and prevention from the dangers of that for the youth. Don’t slow down innovation and freedom. Educate, prepare, adapt, and look for solutions.
I’m not perfect and I’m sure that there are errors in this piece. I hope that you find them and it starts a conversation.
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@ 57d1a264:69f1fee1
2025-05-16 05:38:28LegoGPT generates a LEGO structure from a user-provided text prompt in an end-to-end manner. Notably, our generated LEGO structure is physically stable and buildable.
Lego is something most of us knows. This is a opportuity to ask where is our creativity going? From the art of crafting figures to building blocks following our need and desires to have a machine thinking and building following step-by-step instructions to achieve an isolated goal.
Is the creative act then in the question itself, not anymore in the crafting? Are we just delegating the solution of problems, the thinking of how to respond to questions, to machines? Would it be different if delegated to other people?
Source: https://avalovelace1.github.io/LegoGPT/
https://stacker.news/items/981336
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@ 266815e0:6cd408a5
2025-05-02 22:24:59Its been six long months of refactoring code and building out to the applesauce packages but the app is stable enough for another release.
This update is pretty much a full rewrite of the non-visible parts of the app. all the background services were either moved out to the applesauce packages or rewritten, the result is that noStrudel is a little faster and much more consistent with connections and publishing.
New layout
The app has a new layout now, it takes advantage of the full desktop screen and looks a little better than it did before.
Removed NIP-72 communities
The NIP-72 communities are no longer part of the app, if you want to continue using them there are still a few apps that support them ( like satellite.earth ) but noStrudel won't support them going forward.
The communities where interesting but ultimately proved too have some fundamental flaws, most notably that all posts had to be approved by a moderator. There were some good ideas on how to improve it but they would have only been patches and wouldn't have fixed the underlying issues.
I wont promise to build it into noStrudel, but NIP-29 (relay based groups) look a lot more promising and already have better moderation abilities then NIP-72 communities could ever have.
Settings view
There is now a dedicated settings view, so no more hunting around for where the relays are set or trying to find how to add another account. its all in one place now
Cleaned up lists
The list views are a little cleaner now, and they have a simple edit modal
New emoji picker
Just another small improvement that makes the app feel more complete.
Experimental Wallet
There is a new "wallet" view in the app that lets you manage your NIP-60 cashu wallet. its very experimental and probably won't work for you, but its there and I hope to finish it up so the app can support NIP-61 nutzaps.
WARNING: Don't feed the wallet your hard earned sats, it will eat them!
Smaller improvements
- Added NSFW flag for replies
- Updated NIP-48 bunker login to work with new spec
- Linkfy BIPs
- Added 404 page
- Add NIP-22 comments under badges, files, and articles
- Add max height to timeline notes
- Fix articles view freezing on load
- Add option to mirror blobs when sharing notes
- Remove "open in drawer" for notes
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@ a39d19ec:3d88f61e
2024-11-21 12:05:09A state-controlled money supply can influence the development of socialist policies and practices in various ways. Although the relationship is not deterministic, state control over the money supply can contribute to a larger role of the state in the economy and facilitate the implementation of socialist ideals.
Fiscal Policy Capabilities
When the state manages the money supply, it gains the ability to implement fiscal policies that can lead to an expansion of social programs and welfare initiatives. Funding these programs by creating money can enhance the state's influence over the economy and move it closer to a socialist model. The Soviet Union, for instance, had a centralized banking system that enabled the state to fund massive industrialization and social programs, significantly expanding the state's role in the economy.
Wealth Redistribution
Controlling the money supply can also allow the state to influence economic inequality through monetary policies, effectively redistributing wealth and reducing income disparities. By implementing low-interest loans or providing financial assistance to disadvantaged groups, the state can narrow the wealth gap and promote social equality, as seen in many European welfare states.
Central Planning
A state-controlled money supply can contribute to increased central planning, as the state gains more influence over the economy. Central banks, which are state-owned or heavily influenced by the state, play a crucial role in managing the money supply and facilitating central planning. This aligns with socialist principles that advocate for a planned economy where resources are allocated according to social needs rather than market forces.
Incentives for Staff
Staff members working in state institutions responsible for managing the money supply have various incentives to keep the system going. These incentives include job security, professional expertise and reputation, political alignment, regulatory capture, institutional inertia, and legal and administrative barriers. While these factors can differ among individuals, they can collectively contribute to the persistence of a state-controlled money supply system.
In conclusion, a state-controlled money supply can facilitate the development of socialist policies and practices by enabling fiscal policies, wealth redistribution, and central planning. The staff responsible for managing the money supply have diverse incentives to maintain the system, further ensuring its continuation. However, it is essential to note that many factors influence the trajectory of an economic system, and the relationship between state control over the money supply and socialism is not inevitable.
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@ 91bea5cd:1df4451c
2025-02-04 17:15:57Definição de ULID:
Timestamp 48 bits, Aleatoriedade 80 bits Sendo Timestamp 48 bits inteiro, tempo UNIX em milissegundos, Não ficará sem espaço até o ano 10889 d.C. e Aleatoriedade 80 bits, Fonte criptograficamente segura de aleatoriedade, se possível.
Gerar ULID
```sql
CREATE EXTENSION IF NOT EXISTS pgcrypto;
CREATE FUNCTION generate_ulid() RETURNS TEXT AS $$ DECLARE -- Crockford's Base32 encoding BYTEA = '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; timestamp BYTEA = E'\000\000\000\000\000\000'; output TEXT = '';
unix_time BIGINT; ulid BYTEA; BEGIN -- 6 timestamp bytes unix_time = (EXTRACT(EPOCH FROM CLOCK_TIMESTAMP()) * 1000)::BIGINT; timestamp = SET_BYTE(timestamp, 0, (unix_time >> 40)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 1, (unix_time >> 32)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 2, (unix_time >> 24)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 3, (unix_time >> 16)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 4, (unix_time >> 8)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 5, unix_time::BIT(8)::INTEGER);
-- 10 entropy bytes ulid = timestamp || gen_random_bytes(10);
-- Encode the timestamp output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 0) & 224) >> 5)); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 0) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 1) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 1) & 7) << 2) | ((GET_BYTE(ulid, 2) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 2) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 2) & 1) << 4) | ((GET_BYTE(ulid, 3) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 3) & 15) << 1) | ((GET_BYTE(ulid, 4) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 4) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 4) & 3) << 3) | ((GET_BYTE(ulid, 5) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 5) & 31)));
-- Encode the entropy output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 6) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 6) & 7) << 2) | ((GET_BYTE(ulid, 7) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 7) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 7) & 1) << 4) | ((GET_BYTE(ulid, 8) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 8) & 15) << 1) | ((GET_BYTE(ulid, 9) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 9) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 9) & 3) << 3) | ((GET_BYTE(ulid, 10) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 10) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 11) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 11) & 7) << 2) | ((GET_BYTE(ulid, 12) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 12) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 12) & 1) << 4) | ((GET_BYTE(ulid, 13) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 13) & 15) << 1) | ((GET_BYTE(ulid, 14) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 14) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 14) & 3) << 3) | ((GET_BYTE(ulid, 15) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 15) & 31)));
RETURN output; END $$ LANGUAGE plpgsql VOLATILE; ```
ULID TO UUID
```sql CREATE OR REPLACE FUNCTION parse_ulid(ulid text) RETURNS bytea AS $$ DECLARE -- 16byte bytes bytea = E'\x00000000 00000000 00000000 00000000'; v char[]; -- Allow for O(1) lookup of index values dec integer[] = ARRAY[ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255, 255, 10, 11, 12, 13, 14, 15, 16, 17, 1, 18, 19, 1, 20, 21, 0, 22, 23, 24, 25, 26, 255, 27, 28, 29, 30, 31, 255, 255, 255, 255, 255, 255, 10, 11, 12, 13, 14, 15, 16, 17, 1, 18, 19, 1, 20, 21, 0, 22, 23, 24, 25, 26, 255, 27, 28, 29, 30, 31 ]; BEGIN IF NOT ulid ~* '^[0-7][0-9ABCDEFGHJKMNPQRSTVWXYZ]{25}$' THEN RAISE EXCEPTION 'Invalid ULID: %', ulid; END IF;
v = regexp_split_to_array(ulid, '');
-- 6 bytes timestamp (48 bits) bytes = SET_BYTE(bytes, 0, (dec[ASCII(v[1])] << 5) | dec[ASCII(v[2])]); bytes = SET_BYTE(bytes, 1, (dec[ASCII(v[3])] << 3) | (dec[ASCII(v[4])] >> 2)); bytes = SET_BYTE(bytes, 2, (dec[ASCII(v[4])] << 6) | (dec[ASCII(v[5])] << 1) | (dec[ASCII(v[6])] >> 4)); bytes = SET_BYTE(bytes, 3, (dec[ASCII(v[6])] << 4) | (dec[ASCII(v[7])] >> 1)); bytes = SET_BYTE(bytes, 4, (dec[ASCII(v[7])] << 7) | (dec[ASCII(v[8])] << 2) | (dec[ASCII(v[9])] >> 3)); bytes = SET_BYTE(bytes, 5, (dec[ASCII(v[9])] << 5) | dec[ASCII(v[10])]);
-- 10 bytes of entropy (80 bits); bytes = SET_BYTE(bytes, 6, (dec[ASCII(v[11])] << 3) | (dec[ASCII(v[12])] >> 2)); bytes = SET_BYTE(bytes, 7, (dec[ASCII(v[12])] << 6) | (dec[ASCII(v[13])] << 1) | (dec[ASCII(v[14])] >> 4)); bytes = SET_BYTE(bytes, 8, (dec[ASCII(v[14])] << 4) | (dec[ASCII(v[15])] >> 1)); bytes = SET_BYTE(bytes, 9, (dec[ASCII(v[15])] << 7) | (dec[ASCII(v[16])] << 2) | (dec[ASCII(v[17])] >> 3)); bytes = SET_BYTE(bytes, 10, (dec[ASCII(v[17])] << 5) | dec[ASCII(v[18])]); bytes = SET_BYTE(bytes, 11, (dec[ASCII(v[19])] << 3) | (dec[ASCII(v[20])] >> 2)); bytes = SET_BYTE(bytes, 12, (dec[ASCII(v[20])] << 6) | (dec[ASCII(v[21])] << 1) | (dec[ASCII(v[22])] >> 4)); bytes = SET_BYTE(bytes, 13, (dec[ASCII(v[22])] << 4) | (dec[ASCII(v[23])] >> 1)); bytes = SET_BYTE(bytes, 14, (dec[ASCII(v[23])] << 7) | (dec[ASCII(v[24])] << 2) | (dec[ASCII(v[25])] >> 3)); bytes = SET_BYTE(bytes, 15, (dec[ASCII(v[25])] << 5) | dec[ASCII(v[26])]);
RETURN bytes; END $$ LANGUAGE plpgsql IMMUTABLE;
CREATE OR REPLACE FUNCTION ulid_to_uuid(ulid text) RETURNS uuid AS $$ BEGIN RETURN encode(parse_ulid(ulid), 'hex')::uuid; END $$ LANGUAGE plpgsql IMMUTABLE; ```
UUID to ULID
```sql CREATE OR REPLACE FUNCTION uuid_to_ulid(id uuid) RETURNS text AS $$ DECLARE encoding bytea = '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; output text = ''; uuid_bytes bytea = uuid_send(id); BEGIN
-- Encode the timestamp output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 0) & 224) >> 5)); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 0) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 1) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 1) & 7) << 2) | ((GET_BYTE(uuid_bytes, 2) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 2) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 2) & 1) << 4) | ((GET_BYTE(uuid_bytes, 3) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 3) & 15) << 1) | ((GET_BYTE(uuid_bytes, 4) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 4) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 4) & 3) << 3) | ((GET_BYTE(uuid_bytes, 5) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 5) & 31)));
-- Encode the entropy output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 6) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 6) & 7) << 2) | ((GET_BYTE(uuid_bytes, 7) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 7) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 7) & 1) << 4) | ((GET_BYTE(uuid_bytes, 8) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 8) & 15) << 1) | ((GET_BYTE(uuid_bytes, 9) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 9) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 9) & 3) << 3) | ((GET_BYTE(uuid_bytes, 10) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 10) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 11) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 11) & 7) << 2) | ((GET_BYTE(uuid_bytes, 12) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 12) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 12) & 1) << 4) | ((GET_BYTE(uuid_bytes, 13) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 13) & 15) << 1) | ((GET_BYTE(uuid_bytes, 14) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 14) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 14) & 3) << 3) | ((GET_BYTE(uuid_bytes, 15) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 15) & 31)));
RETURN output; END $$ LANGUAGE plpgsql IMMUTABLE; ```
Gera 11 Digitos aleatórios: YBKXG0CKTH4
```sql -- Cria a extensão pgcrypto para gerar uuid CREATE EXTENSION IF NOT EXISTS pgcrypto;
-- Cria a função para gerar ULID CREATE OR REPLACE FUNCTION gen_lrandom() RETURNS TEXT AS $$ DECLARE ts_millis BIGINT; ts_chars TEXT; random_bytes BYTEA; random_chars TEXT; base32_chars TEXT := '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; i INT; BEGIN -- Pega o timestamp em milissegundos ts_millis := FLOOR(EXTRACT(EPOCH FROM clock_timestamp()) * 1000)::BIGINT;
-- Converte o timestamp para base32 ts_chars := ''; FOR i IN REVERSE 0..11 LOOP ts_chars := ts_chars || substr(base32_chars, ((ts_millis >> (5 * i)) & 31) + 1, 1); END LOOP; -- Gera 10 bytes aleatórios e converte para base32 random_bytes := gen_random_bytes(10); random_chars := ''; FOR i IN 0..9 LOOP random_chars := random_chars || substr(base32_chars, ((get_byte(random_bytes, i) >> 3) & 31) + 1, 1); IF i < 9 THEN random_chars := random_chars || substr(base32_chars, (((get_byte(random_bytes, i) & 7) << 2) | (get_byte(random_bytes, i + 1) >> 6)) & 31 + 1, 1); ELSE random_chars := random_chars || substr(base32_chars, ((get_byte(random_bytes, i) & 7) << 2) + 1, 1); END IF; END LOOP; -- Concatena o timestamp e os caracteres aleatórios RETURN ts_chars || random_chars;
END; $$ LANGUAGE plpgsql; ```
Exemplo de USO
```sql -- Criação da extensão caso não exista CREATE EXTENSION IF NOT EXISTS pgcrypto; -- Criação da tabela pessoas CREATE TABLE pessoas ( ID UUID DEFAULT gen_random_uuid ( ) PRIMARY KEY, nome TEXT NOT NULL );
-- Busca Pessoa na tabela SELECT * FROM "pessoas" WHERE uuid_to_ulid ( ID ) = '252FAC9F3V8EF80SSDK8PXW02F'; ```
Fontes
- https://github.com/scoville/pgsql-ulid
- https://github.com/geckoboard/pgulid
-
@ 21335073:a244b1ad
2025-03-15 23:00:40I want to see Nostr succeed. If you can think of a way I can help make that happen, I’m open to it. I’d like your suggestions.
My schedule’s shifting soon, and I could volunteer a few hours a week to a Nostr project. I won’t have more total time, but how I use it will change.
Why help? I care about freedom. Nostr’s one of the most powerful freedom tools I’ve seen in my lifetime. If I believe that, I should act on it.
I don’t care about money or sats. I’m not rich, I don’t have extra cash. That doesn’t drive me—freedom does. I’m volunteering, not asking for pay.
I’m not here for clout. I’ve had enough spotlight in my life; it doesn’t move me. If I wanted clout, I’d be on Twitter dropping basic takes. Clout’s easy. Freedom’s hard. I’d rather help anonymously. No speaking at events—small meetups are cool for the vibe, but big conferences? Not my thing. I’ll never hit a huge Bitcoin conference. It’s just not my scene.
That said, I could be convinced to step up if it’d really boost Nostr—as long as it’s legal and gets results.
In this space, I’d watch for social engineering. I watch out for it. I’m not here to make friends, just to help. No shade—you all seem great—but I’ve got a full life and awesome friends irl. I don’t need your crew or to be online cool. Connect anonymously if you want; I’d encourage it.
I’m sick of watching other social media alternatives grow while Nostr kinda stalls. I could trash-talk, but I’d rather do something useful.
Skills? I’m good at spotting social media problems and finding possible solutions. I won’t overhype myself—that’s weird—but if you’re responding, you probably see something in me. Perhaps you see something that I don’t see in myself.
If you need help now or later with Nostr projects, reach out. Nostr only—nothing else. Anonymous contact’s fine. Even just a suggestion on how I can pitch in, no project attached, works too. 💜
Creeps or harassment will get blocked or I’ll nuke my simplex code if it becomes a problem.
https://simplex.chat/contact#/?v=2-4&smp=smp%3A%2F%2FSkIkI6EPd2D63F4xFKfHk7I1UGZVNn6k1QWZ5rcyr6w%3D%40smp9.simplex.im%2FbI99B3KuYduH8jDr9ZwyhcSxm2UuR7j0%23%2F%3Fv%3D1-2%26dh%3DMCowBQYDK2VuAyEAS9C-zPzqW41PKySfPCEizcXb1QCus6AyDkTTjfyMIRM%253D%26srv%3Djssqzccmrcws6bhmn77vgmhfjmhwlyr3u7puw4erkyoosywgl67slqqd.onion