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@ 005bc4de:ef11e1a2
2025-05-04 12:01:42OSU commencement speech revisited 1 year later
One year ago, May 5, 2024, the commencement speaker at Ohio State University was Chris Pan. He got booed for mentioning bitcoin. There were some other things involved, but the bitcoin part is what could my ears.
Here's an article about the speech and a video clip with the bitcoin mention. The quote that I feel is especially pertinent is this, '“The mechanics of investing are actually easy, but it comes down to mindset,” Pan said. “The most common barriers are fear, laziness and closed-mindedness.”'
Last year, I wrote this and had it sent as a reminder to myself (I received the reminder yesterday after totally forgetting about this):
Ohio State commencement speaker mentions bitcoin and got booed.
I wondered what would've happened if they'd taken his advice to heart and bought bitcoin that day. Linked article: https://www.businessinsider.com/osu-commencement-speaker-ayahuasca-praises-bitcoin-booed-viral-2024-5
Nat Brunell interviewed him on her Coin Stories podcast shortly after his speech: https://www.youtube.com/watch?v=LRqKxKqlbcI
BTC on 5/5/2024 day of speech: about $64,047 (chart below)
If any of those now wise old 23 year olds remember the advice they were given, bitcoin is currently at $95,476. If any took Pan's advice, they achieved a 49% gain in one year. Those who did not take Pan's advice, lost about 2.7% of their buying power due to inflation.
For bitcoiners, think about how far we've come. May of 2024 was still the waning days of the "War on Crypto," bitcoin was boiling the oceans, if you held, used, or liked bitcoin you were evil. Those were dark days and days I'm glad are behind us.
Here is the full commencement speech. The bitcoin part is around the 5 or 6 minute mark: https://m.youtube.com/watch?v=lcH-iL_FdYo
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@ 84b0c46a:417782f5
2025-05-04 10:00:28
₍ ･ᴗ･ ₎ ₍ ･ᴗ･ ₎₍ ･ᴗ･ ₎
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@ 84b0c46a:417782f5
2025-05-04 09:49:45
- 1:nan:
- 2
- 2irorio絵文字
- 1nostr:npub1sjcvg64knxkrt6ev52rywzu9uzqakgy8ehhk8yezxmpewsthst6sw3jqcw
- 2
- 2
- 3
- 3
- 2
- 1
|1|2| |:--|:--| |test| :nan: |
---:nan: :nan:
- 1
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-
19^th^
- H~2~O
wss://catstrr.swarmstr.com/
うにょうにょてすと
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@ 91bea5cd:1df4451c
2025-02-04 17:24:50
Definição 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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@ 84b0c46a:417782f5
2025-05-04 09:36:08
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@ 0fa80bd3:ea7325de
2025-01-29 05:55:02
The land that belongs to the indigenous peoples of Russia has been seized by a gang of killers who have unleashed a war of extermination. They wipe out anyone who refuses to conform to their rules. Those who disagree and stay behind are tortured and killed in prisons and labor camps. Those who flee lose their homeland, dissolve into foreign cultures, and fade away. And those who stand up to protect their people are attacked by the misled and deceived. The deceived die for the unchecked greed of a single dictator—thousands from both sides, people who just wanted to live, raise their kids, and build a future.
Now, they are forced to make an impossible choice: abandon their homeland or die. Some perish on the battlefield, others lose themselves in exile, stripped of their identity, scattered in a world that isn’t theirs.
There’s been endless debate about how to fix this, how to clear the field of the weeds that choke out every new sprout, every attempt at change. But the real problem? We can’t play by their rules. We can’t speak their language or use their weapons. We stand for humanity, and no matter how righteous our cause, we will not multiply suffering. Victory doesn’t come from matching the enemy—it comes from staying ahead, from using tools they haven’t mastered yet. That’s how wars are won.
Our only resource is the will of the people to rewrite the order of things. Historian Timothy Snyder once said that a nation cannot exist without a city. A city is where the most active part of a nation thrives. But the cities are occupied. The streets are watched. Gatherings are impossible. They control the money. They control the mail. They control the media. And any dissent is crushed before it can take root.
So I started asking myself: How do we stop this fragmentation? How do we create a space where people can rebuild their connections when they’re ready? How do we build a self-sustaining network, where everyone contributes and benefits proportionally, while keeping their freedom to leave intact? And more importantly—how do we make it spread, even in occupied territory?
In 2009, something historic happened: the internet got its own money. Thanks to Satoshi Nakamoto, the world took a massive leap forward. Bitcoin and decentralized ledgers shattered the idea that money must be controlled by the state. Now, to move or store value, all you need is an address and a key. A tiny string of text, easy to carry, impossible to seize.
That was the year money broke free. The state lost its grip. Its biggest weapon—physical currency—became irrelevant. Money became purely digital.
The internet was already a sanctuary for information, a place where people could connect and organize. But with Bitcoin, it evolved. Now, value itself could flow freely, beyond the reach of authorities.
Think about it: when seedlings are grown in controlled environments before being planted outside, they get stronger, survive longer, and bear fruit faster. That’s how we handle crops in harsh climates—nurture them until they’re ready for the wild.
Now, picture the internet as that controlled environment for ideas. Bitcoin? It’s the fertile soil that lets them grow. A testing ground for new models of interaction, where concepts can take root before they move into the real world. If nation-states are a battlefield, locked in a brutal war for territory, the internet is boundless. It can absorb any number of ideas, any number of people, and it doesn’t run out of space.
But for this ecosystem to thrive, people need safe ways to communicate, to share ideas, to build something real—without surveillance, without censorship, without the constant fear of being erased.
This is where Nostr comes in.
Nostr—"Notes and Other Stuff Transmitted by Relays"—is more than just a messaging protocol. It’s a new kind of city. One that no dictator can seize, no corporation can own, no government can shut down.
It’s built on decentralization, encryption, and individual control. Messages don’t pass through central servers—they are relayed through independent nodes, and users choose which ones to trust. There’s no master switch to shut it all down. Every person owns their identity, their data, their connections. And no one—no state, no tech giant, no algorithm—can silence them.
In a world where cities fall and governments fail, Nostr is a city that cannot be occupied. A place for ideas, for networks, for freedom. A city that grows stronger the more people build within it.
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@ 9e69e420:d12360c2
2025-01-26 15:26:44
Secretary of State Marco Rubio issued new guidance halting spending on most foreign aid grants for 90 days, including military assistance to Ukraine. This immediate order shocked State Department officials and mandates “stop-work orders” on nearly all existing foreign assistance awards.
While it allows exceptions for military financing to Egypt and Israel, as well as emergency food assistance, it restricts aid to key allies like Ukraine, Jordan, and Taiwan. The guidance raises potential liability risks for the government due to unfulfilled contracts.
A report will be prepared within 85 days to recommend which programs to continue or discontinue.
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@ 9e69e420:d12360c2
2025-01-25 22:16:54
President Trump plans to withdraw 20,000 U.S. troops from Europe and expects European allies to contribute financially to the remaining military presence. Reported by ANSA, Trump aims to deliver this message to European leaders since taking office. A European diplomat noted, “the costs cannot be borne solely by American taxpayers.”
The Pentagon hasn't commented yet. Trump has previously sought lower troop levels in Europe and had ordered cuts during his first term. The U.S. currently maintains around 65,000 troops in Europe, with total forces reaching 100,000 since the Ukraine invasion. Trump's new approach may shift military focus to the Pacific amid growing concerns about China.
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@ b17fccdf:b7211155
2025-01-21 17:02:21
The past 26 August, Tor introduced officially a proof-of-work (PoW) defense for onion services designed to prioritize verified network traffic as a deterrent against denial of service (DoS) attacks.
~ > This feature at the moment, is deactivate by default, so you need to follow these steps to activate this on a MiniBolt node:
- Make sure you have the latest version of Tor installed, at the time of writing this post, which is v0.4.8.6. Check your current version by typing
tor --versionExample of expected output:
Tor version 0.4.8.6. This build of Tor is covered by the GNU General Public License (https://www.gnu.org/licenses/gpl-3.0.en.html) Tor is running on Linux with Libevent 2.1.12-stable, OpenSSL 3.0.9, Zlib 1.2.13, Liblzma 5.4.1, Libzstd N/A and Glibc 2.36 as libc. Tor compiled with GCC version 12.2.0~ > If you have v0.4.8.X, you are OK, if not, type
sudo apt update && sudo apt upgradeand confirm to update.- Basic PoW support can be checked by running this command:
tor --list-modulesExpected output:
relay: yes dirauth: yes dircache: yes pow: **yes**~ > If you have
pow: yes, you are OK- Now go to the torrc file of your MiniBolt and add the parameter to enable PoW for each hidden service added
sudo nano /etc/tor/torrcExample:
```
Hidden Service BTC RPC Explorer
HiddenServiceDir /var/lib/tor/hidden_service_btcrpcexplorer/ HiddenServiceVersion 3 HiddenServicePoWDefensesEnabled 1 HiddenServicePort 80 127.0.0.1:3002 ```
~ > Bitcoin Core and LND use the Tor control port to automatically create the hidden service, requiring no action from the user. We have submitted a feature request in the official GitHub repositories to explore the need for the integration of Tor's PoW defense into the automatic creation process of the hidden service. You can follow them at the following links:
- Bitcoin Core: https://github.com/lightningnetwork/lnd/issues/8002
- LND: https://github.com/bitcoin/bitcoin/issues/28499
More info:
- https://blog.torproject.org/introducing-proof-of-work-defense-for-onion-services/
- https://gitlab.torproject.org/tpo/onion-services/onion-support/-/wikis/Documentation/PoW-FAQ
Enjoy it MiniBolter! 💙
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@ 1f79058c:eb86e1cb
2025-05-04 09:34:30
I think we should agree on an HTML element for pointing to the Nostr representation of a document/URL on the Web. We could use the existing one for link relations for example:
html <link rel="alternate" type="application/nostr+json" href="nostr:naddr1qvzqqqr4..." title="This article on Nostr" />This would be useful in multiple ways:
- Nostr clients, when fetching meta/preview information for a URL that is linked in a note, can detect that there's a Nostr representation of the content, and then render it in Nostr-native ways (whatever that may be depending on the client)
- User agents, usually a browser or browser extension, when opening a URL on the Web, can offer opening the alternative representation of a page in a Nostr client. And/or they could offer to follow the author's pubkey on Nostr. And/or they could offer to zap the content.
- When publishing a new article, authors can share their preferred Web URL everywhere, without having to consider if the reader knows about or uses Nostr at all. However, if a Nostr user finds the Web version of an article outside of Nostr, they can now easily jump to the Nostr version of it.
- Existing Web publications can retroactively create Nostr versions of their content and easily link the Nostr articles on all of their existing article pages without having to add prominent Nostr links everywhere.
There are probably more use cases, like Nostr search engines and whatnot. If you can think of something interesting, please tell me.
Update: I came up with another interesting use case, which is adding alternate links to RSS and Atom feeds.
Proof of concept
In order to show one way in which this could be used, I have created a small Web Extension called Nostr Links, which will discover alternate Nostr links on the pages you visit.
If it finds one or more links, it will show a purple Nostr icon in the address bar, which you can click to open the list of links. It's similar to e.g. the Feed Preview extension, and also to what the Tor Browser does when it discovers an Onion-Location for the page you're looking at:
The links in this popup menu will be
web+nostr:links, because browsers currently do not allow web apps or extensions to handle unprefixednostr:links. (I hope someone is working on getting those on par withipfs:etc.)Following such a link will either open your default Nostr Web app, if you have already configured one, or it will ask you which Web app to open the link with.
Caveat emptor: At the time of writing, my personal default Web app, noStrudel, needs a new release for the links to find the content.
Try it now
Have a look at the source code and/or download the extension (currently only for Firefox).
I have added alternate Nostr links to the Web pages of profiles and long-form content on the Kosmos relay's domain. It's probably the only place on the Web, which will trigger the extension right now.
You can look at this very post to find an alternate link for example.
Update: A certain fiatjaf has added the element to his personal website, which is built entirely from Nostr articles. Multiple other devs also expressed their intent to implement.
Update 2: There is now a pull request for documenting this approach in two existing NIPs. Your feedback is welcome there.
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@ a296b972:e5a7a2e8
2025-05-04 08:30:56
Am Ende der Woche von Unseremeinungsfreiheit wird in der Unserehauptstadt von Unserdeutschland, Unserberlin, voraussichtlich der neue Unserbundeskanzler vereidigt.
Der Schwur des voraussichtlich nächsten Unserbundeskanzlers sollte aktualisiert werden:
Jetzt, wo endlich mein Traum in Erfüllung geht, nur einmal im Leben Unserbundeskanzler zu werden, zahlen sich für mich alle Tricks und Kniffe aus, die ich angewendet habe, um unter allen Umständen in diese Position zu kommen.
Ich schwöre, dass ich meine Kraft meinem Wohle widmen, meinen Nutzen mehren, nach Vorbild meines Vorgängers Schaden von mir wenden, das Grundgesetz und die Gesetze des Unserbundes formen, meine Pflichten unsergewissenhaft erfüllen und Unseregerechtigkeit gegen jedermann und jederfrau nicht nur üben, sondern unter allen Umständen auch durchsetzen werde, die sich mir bei der Umsetzung der Vorstellungen von Unseredemokratie in den Weg stellen. (So wahr mir wer auch immer helfe).
Der Antrittsbesuch des Unserbundeskanzlers beim Repräsentanten der noch in Unserdeutschland präsenten Besatzungsmacht wird mit Spannung erwartet.
Ein großer Teil der Unsereminister ist schon bekannt. Die Auswahl verspricht viele Unsereüberraschungen.
Die Unsereeinheitspartei, bestehend aus ehemaligen Volksparteien, wird weiterhin dafür sorgen, dass die Nicht-Unsereopposition so wenig wie möglich Einfluss erhält, obwohl sie von den Nicht-Unserebürgern, die mindestens ein Viertel der Urnengänger ausmachen, voll-demokratisch gewählt wurde.
Das Zentralkomitee der Deutschen Unseredemokratischen Bundesrepublik wird zum Wohle seiner Unserebürger alles daransetzen, Unseredemokratie weiter voranzubringen und hofft auch weiterhin auf die Unterstützung von Unser-öffentlich-rechtlicher-Rundfunk.
Die Unserepressefreiheit wird auch weiterhin garantiert.
Auf die Verlautbarungen der Unserepressekonferenz, besetzt mit frischem Unserpersonal, brauchen die Insassen von Unserdeutschland auch weiterhin nicht zu verzichten.
Alles, was nicht gesichert unserdemokratisch ist, gilt als gesichert rechtsextrem.
Als Maxime gilt für alles Handeln: Es muss unter allen Umständen demokratisch aussehen, aber wir (die Unseredemokraten) müssen alles in der Hand haben.
Es ist unwahrscheinlich, dass Unsersondervermögen von den Unserdemokraten zurückgezahlt wird. Dieser Vorzug ist den Unserebürgern und den Nicht-Unserebürgern durch Unseresteuerzahlungen vorbehalten.
Die Unserebundeswehr soll aufgebaut werden (Baut auf, baut auf!), die Unsererüstungsindustrie läuft auf Hochtouren und soll Unserdeutschland wieder unserkriegstüchtig machen, weil Russland immer Unserfeind sein wird.
Von Unserdeutschland soll nur noch Unserfrieden ausgehen.
Zur Bekräftigung, dass alles seinen unser-sozialistischen Gang geht, tauchte die Phoenix*in aus der Asche auf, in dem Unseremutti kürzlich ihren legendären Satz wiederholte:
Wir schaffen das.
Ob damit der endgültige wirtschaftliche Untergang und die Vollendung der gesellschaftlichen Spaltung von Unserdeutschland gemeint war, ist nicht überliefert.
Orwellsche Schlussfolgerung:
Wir = unser
Ihr = Euer
Vogel und Maus passen nicht zusammen
Ausgerichtet auf Ruinen und der Zukunft abgewandt, Uneinigkeit und Unrecht und Unfreiheit für das deutsche Unserland.
Unserdeutschland – ein Land mit viel Vergangenheit und wenig Zukunft?
Es ist zum Heulen.
Dieser Artikel wurde mit dem Pareto-Client geschrieben
* *
(Bild von pixabay)
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@ b2caa9b3:9eab0fb5
2025-05-04 08:20:46
Hey friends,
Exciting news – I’m currently setting up my very first Discord server!
This space will be all about my travels, behind-the-scenes stories, photo sharing, and practical tips and insights from the road. My goal is to make it the central hub connecting all my decentralized social platforms where I can interact with you more directly, and share exclusive content.
Since I’m just starting out, I’d love to hear from you:
Do you know any useful RSS-feed integrations for updates?
Can you recommend any cool Discord bots for community engagement or automation?
Are there any tips or features you think I must include?
The idea is to keep everything free and accessible, and to grow a warm, helpful community around the joy of exploring the world.
It’s my first time managing a Discord server, so your experience and suggestions would mean a lot. Leave a comment – I’m all ears!
Thanks for your support, Ruben Storm
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@ 86dfbe73:628cef55
2025-05-04 06:56:33
Building A Second Brain (BASB) ist eine Methode, mit der man Ideen, Einsichten und Vernetzungen, die man durch seine Erfahrungen gewonnen hat, systematisch speichert und die jeder Zeit abrufbar sind. Kurz, BASB erweitert das Gedächtnis mit Hilfe moderner digitaler Werkzeuge und Netzwerke. Die Kernidee ist, dass man durch diese Verlagerung sein biologisches Gehirn befreit, um frei denken zu können, seiner Kreativität freien Lauf zu geben oder einfach im Moment sein kann.
Die Methode besteht aus drei Grundschritten: dem Sammeln von Ideen und Erkenntnissen, dem Vernetzen dieser Ideen und Erkenntnisse und dem Erschaffen konkreter Ergebnisse.
Sammeln: Der erste Schritt beim Aufbau eines Second Brains ist das «Sammeln» der Ideen und Erkenntnisse, die genug wichtig oder interessant sind, um sie festzuhalten. Dafür wird als Organisationsstruktur P.A.R.A empfohlen.
Vernetzen: Sobald man angefangen hat, sein persönliches Wissen strukturiert zu sammeln, wird man anfangen, Muster und Verbindungen zwischen den Ideen und Erkenntnissen zu erkennen. Ab dieser Stelle verwende ich parallel die Zettelkastenmethode (ZKM)
Erschaffen: All das Erfassen, Zusammenfassen, Verbinden und Strukturieren haben letztlich das Ziel: Konkrete Ergebnisse in der realen Welt zu erschaffen.
PARA ist die Organisationsstruktur, die auf verschiedenen Endgeräten einsetzt werden kann, um digitale Informationen immer nach dem gleichen Schema abzulegen. Seien es Informationen, Notizen, Grafiken, Videos oder Dateien, alles hat seinen festen Platz und kann anhand von vier Kategorien bzw. „Buckets“ kategorisiert werden.
PARA steht dabei für: * Projekte * Areas * Ressourcen * Archiv
Projekte (engl. Projects) sind kurzfristige Bemühungen in Arbeit und Privatleben. Sie sind das, woran Du aktuell arbeitest. Sie haben einige für die Arbeit förderliche Eigenschaften: * Sie haben einen Anfang und ein Ende (im Gegensatz zu einem Hobby oder einem Verantwortungsbereich). * Sie haben ein konkretes Ergebnis, dass erreicht werden soll und bestehen aus konkreten Schritten, die nötig und zusammen hinreichend sind, um dieses Ziel zu erreichen, entspricht GTD von David Allen
Verantwortungsbereiche (engl. Areas) betreffen alles, was man langfristig im Blick behalten will. Sie unterscheidet von Projekten, dass man bei ihnen kein Ziel verfolgt, sondern einem Standard halten will. Sie sind dementsprechend nicht befristet. Man könnte sagen, dass sie einen Anspruch an uns selbst und unsere Lebenswelt darstellen.
Ressourcen (engl. Resources) sind Themen, die allenfalls langfristig relevant oder nützlich werden könnten. Sie sind eine Sammelkategorie für alles, was weder Projekt noch Verantwortungsbereich ist. Es sind: * Themen, die interessant sind. (English: Topic) * Untersuchungsgegenständige, die man erforschen will. (Englisch: Subject) * Nützliche Informationen für den späteren Gebrauch.
Das Archiv ist für alles Inaktive aus den obigen drei Kategorien. Es ist ein Lager für Beendetes und Aufgeschobenes.
Das System PARA ist eine nach zeitlicher Handlungsrelevanz angeordnete Ablage. Projekte kommen vor den Verantwortungsbereichen, weil sie einen kurz- bis mittelfristigen Zeithorizont haben, Verantwortungsbereiche dagegen einen unbegrenzten Zeithorizont. Ressourcen und Archiv bilden die Schlusslichter, weil sie gewöhnlich weder Priorität haben, noch dringend sind.
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@ 57d1a264:69f1fee1
2025-05-04 06:37:52
KOReader is a document viewer for E Ink devices. Supported file formats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux.
Download it from https://koreader.rocks Repository: https://github.com/koreader/koreader
originally posted at https://stacker.news/items/970912
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@ 57d1a264:69f1fee1
2025-05-04 06:27:15
Well, today posts looks are dedicated to STAR WARS. Enjoy!
Today we’re looking at Beat Saber (2019) and why its most essential design element can be used to make great VR games that have nothing to do with music or rhythm.
https://www.youtube.com/watch?v=EoOeO7S9ehw
It’s hard to believe Beat Saber was first released in Early Access seven years ago today. From day one, it was clear the game was something special, but even so we couldn’t have predicted it would become one of VR’s best-selling games of all time—a title it still holds all these years later. In celebration of the game’s lasting legacy we’re re-publishing our episode of Inside XR Design which explores the secret to Beat Saber’s fun, and how it can be applied to VR games which have nothing to do with music.
Read more at https://www.roadtovr.com/beat-saber-instructed-motion-until-you-fall-inside-xr-design/
originally posted at https://stacker.news/items/970909
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@ 57d1a264:69f1fee1
2025-05-04 06:16:58
Found this really fun, so created a few intros for latest SN newsletters https://stacker.news/items/960787/r/Design_r?commentId=970902 and https://stacker.news/items/970459/r/Design_r?commentId=970905
Create your STAR-WARS-like movie intro https://starwarsintrocreator.kassellabs.io/
originally posted at https://stacker.news/items/970906
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@ 6be5cc06:5259daf0
2025-01-21 01:51:46
Bitcoin: Um sistema de dinheiro eletrônico direto entre pessoas.
Satoshi Nakamoto
satoshin@gmx.com
www.bitcoin.org
Resumo
O Bitcoin é uma forma de dinheiro digital que permite pagamentos diretos entre pessoas, sem a necessidade de um banco ou instituição financeira. Ele resolve um problema chamado gasto duplo, que ocorre quando alguém tenta gastar o mesmo dinheiro duas vezes. Para evitar isso, o Bitcoin usa uma rede descentralizada onde todos trabalham juntos para verificar e registrar as transações.
As transações são registradas em um livro público chamado blockchain, protegido por uma técnica chamada Prova de Trabalho. Essa técnica cria uma cadeia de registros que não pode ser alterada sem refazer todo o trabalho já feito. Essa cadeia é mantida pelos computadores que participam da rede, e a mais longa é considerada a verdadeira.
Enquanto a maior parte do poder computacional da rede for controlada por participantes honestos, o sistema continuará funcionando de forma segura. A rede é flexível, permitindo que qualquer pessoa entre ou saia a qualquer momento, sempre confiando na cadeia mais longa como prova do que aconteceu.
1. Introdução
Hoje, quase todos os pagamentos feitos pela internet dependem de bancos ou empresas como processadores de pagamento (cartões de crédito, por exemplo) para funcionar. Embora esse sistema seja útil, ele tem problemas importantes porque é baseado em confiança.
Primeiro, essas empresas podem reverter pagamentos, o que é útil em caso de erros, mas cria custos e incertezas. Isso faz com que pequenas transações, como pagar centavos por um serviço, se tornem inviáveis. Além disso, os comerciantes são obrigados a desconfiar dos clientes, pedindo informações extras e aceitando fraudes como algo inevitável.
Esses problemas não existem no dinheiro físico, como o papel-moeda, onde o pagamento é final e direto entre as partes. No entanto, não temos como enviar dinheiro físico pela internet sem depender de um intermediário confiável.
O que precisamos é de um sistema de pagamento eletrônico baseado em provas matemáticas, não em confiança. Esse sistema permitiria que qualquer pessoa enviasse dinheiro diretamente para outra, sem depender de bancos ou processadores de pagamento. Além disso, as transações seriam irreversíveis, protegendo vendedores contra fraudes, mas mantendo a possibilidade de soluções para disputas legítimas.
Neste documento, apresentamos o Bitcoin, que resolve o problema do gasto duplo usando uma rede descentralizada. Essa rede cria um registro público e protegido por cálculos matemáticos, que garante a ordem das transações. Enquanto a maior parte da rede for controlada por pessoas honestas, o sistema será seguro contra ataques.
2. Transações
Para entender como funciona o Bitcoin, é importante saber como as transações são realizadas. Imagine que você quer transferir uma "moeda digital" para outra pessoa. No sistema do Bitcoin, essa "moeda" é representada por uma sequência de registros que mostram quem é o atual dono. Para transferi-la, você adiciona um novo registro comprovando que agora ela pertence ao próximo dono. Esse registro é protegido por um tipo especial de assinatura digital.
O que é uma assinatura digital?
Uma assinatura digital é como uma senha secreta, mas muito mais segura. No Bitcoin, cada usuário tem duas chaves: uma "chave privada", que é secreta e serve para criar a assinatura, e uma "chave pública", que pode ser compartilhada com todos e é usada para verificar se a assinatura é válida. Quando você transfere uma moeda, usa sua chave privada para assinar a transação, provando que você é o dono. A próxima pessoa pode usar sua chave pública para confirmar isso.
Como funciona na prática?
Cada "moeda" no Bitcoin é, na verdade, uma cadeia de assinaturas digitais. Vamos imaginar o seguinte cenário:
- A moeda está com o Dono 0 (você). Para transferi-la ao Dono 1, você assina digitalmente a transação com sua chave privada. Essa assinatura inclui o código da transação anterior (chamado de "hash") e a chave pública do Dono 1.
- Quando o Dono 1 quiser transferir a moeda ao Dono 2, ele assinará a transação seguinte com sua própria chave privada, incluindo também o hash da transação anterior e a chave pública do Dono 2.
- Esse processo continua, formando uma "cadeia" de transações. Qualquer pessoa pode verificar essa cadeia para confirmar quem é o atual dono da moeda.
Resolvendo o problema do gasto duplo
Um grande desafio com moedas digitais é o "gasto duplo", que é quando uma mesma moeda é usada em mais de uma transação. Para evitar isso, muitos sistemas antigos dependiam de uma entidade central confiável, como uma casa da moeda, que verificava todas as transações. No entanto, isso criava um ponto único de falha e centralizava o controle do dinheiro.
O Bitcoin resolve esse problema de forma inovadora: ele usa uma rede descentralizada onde todos os participantes (os "nós") têm acesso a um registro completo de todas as transações. Cada nó verifica se as transações são válidas e se a moeda não foi gasta duas vezes. Quando a maioria dos nós concorda com a validade de uma transação, ela é registrada permanentemente na blockchain.
Por que isso é importante?
Essa solução elimina a necessidade de confiar em uma única entidade para gerenciar o dinheiro, permitindo que qualquer pessoa no mundo use o Bitcoin sem precisar de permissão de terceiros. Além disso, ela garante que o sistema seja seguro e resistente a fraudes.
3. Servidor Timestamp
Para assegurar que as transações sejam realizadas de forma segura e transparente, o sistema Bitcoin utiliza algo chamado de "servidor de registro de tempo" (timestamp). Esse servidor funciona como um registro público que organiza as transações em uma ordem específica.
Ele faz isso agrupando várias transações em blocos e criando um código único chamado "hash". Esse hash é como uma impressão digital que representa todo o conteúdo do bloco. O hash de cada bloco é amplamente divulgado, como se fosse publicado em um jornal ou em um fórum público.
Esse processo garante que cada bloco de transações tenha um registro de quando foi criado e que ele existia naquele momento. Além disso, cada novo bloco criado contém o hash do bloco anterior, formando uma cadeia contínua de blocos conectados — conhecida como blockchain.
Com isso, se alguém tentar alterar qualquer informação em um bloco anterior, o hash desse bloco mudará e não corresponderá ao hash armazenado no bloco seguinte. Essa característica torna a cadeia muito segura, pois qualquer tentativa de fraude seria imediatamente detectada.
O sistema de timestamps é essencial para provar a ordem cronológica das transações e garantir que cada uma delas seja única e autêntica. Dessa forma, ele reforça a segurança e a confiança na rede Bitcoin.
4. Prova-de-Trabalho
Para implementar o registro de tempo distribuído no sistema Bitcoin, utilizamos um mecanismo chamado prova-de-trabalho. Esse sistema é semelhante ao Hashcash, desenvolvido por Adam Back, e baseia-se na criação de um código único, o "hash", por meio de um processo computacionalmente exigente.
A prova-de-trabalho envolve encontrar um valor especial que, quando processado junto com as informações do bloco, gere um hash que comece com uma quantidade específica de zeros. Esse valor especial é chamado de "nonce". Encontrar o nonce correto exige um esforço significativo do computador, porque envolve tentativas repetidas até que a condição seja satisfeita.
Esse processo é importante porque torna extremamente difícil alterar qualquer informação registrada em um bloco. Se alguém tentar mudar algo em um bloco, seria necessário refazer o trabalho de computação não apenas para aquele bloco, mas também para todos os blocos que vêm depois dele. Isso garante a segurança e a imutabilidade da blockchain.
A prova-de-trabalho também resolve o problema de decidir qual cadeia de blocos é a válida quando há múltiplas cadeias competindo. A decisão é feita pela cadeia mais longa, pois ela representa o maior esforço computacional já realizado. Isso impede que qualquer indivíduo ou grupo controle a rede, desde que a maioria do poder de processamento seja mantida por participantes honestos.
Para garantir que o sistema permaneça eficiente e equilibrado, a dificuldade da prova-de-trabalho é ajustada automaticamente ao longo do tempo. Se novos blocos estiverem sendo gerados rapidamente, a dificuldade aumenta; se estiverem sendo gerados muito lentamente, a dificuldade diminui. Esse ajuste assegura que novos blocos sejam criados aproximadamente a cada 10 minutos, mantendo o sistema estável e funcional.
5. Rede
A rede Bitcoin é o coração do sistema e funciona de maneira distribuída, conectando vários participantes (ou nós) para garantir o registro e a validação das transações. Os passos para operar essa rede são:
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Transmissão de Transações: Quando alguém realiza uma nova transação, ela é enviada para todos os nós da rede. Isso é feito para garantir que todos estejam cientes da operação e possam validá-la.
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Coleta de Transações em Blocos: Cada nó agrupa as novas transações recebidas em um "bloco". Este bloco será preparado para ser adicionado à cadeia de blocos (a blockchain).
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Prova-de-Trabalho: Os nós competem para resolver a prova-de-trabalho do bloco, utilizando poder computacional para encontrar um hash válido. Esse processo é como resolver um quebra-cabeça matemático difícil.
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Envio do Bloco Resolvido: Quando um nó encontra a solução para o bloco (a prova-de-trabalho), ele compartilha esse bloco com todos os outros nós na rede.
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Validação do Bloco: Cada nó verifica o bloco recebido para garantir que todas as transações nele contidas sejam válidas e que nenhuma moeda tenha sido gasta duas vezes. Apenas blocos válidos são aceitos.
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Construção do Próximo Bloco: Os nós que aceitaram o bloco começam a trabalhar na criação do próximo bloco, utilizando o hash do bloco aceito como base (hash anterior). Isso mantém a continuidade da cadeia.
Resolução de Conflitos e Escolha da Cadeia Mais Longa
Os nós sempre priorizam a cadeia mais longa, pois ela representa o maior esforço computacional já realizado, garantindo maior segurança. Se dois blocos diferentes forem compartilhados simultaneamente, os nós trabalharão no primeiro bloco recebido, mas guardarão o outro como uma alternativa. Caso o segundo bloco eventualmente forme uma cadeia mais longa (ou seja, tenha mais blocos subsequentes), os nós mudarão para essa nova cadeia.
Tolerância a Falhas
A rede é robusta e pode lidar com mensagens que não chegam a todos os nós. Uma transação não precisa alcançar todos os nós de imediato; basta que chegue a um número suficiente deles para ser incluída em um bloco. Da mesma forma, se um nó não receber um bloco em tempo hábil, ele pode solicitá-lo ao perceber que está faltando quando o próximo bloco é recebido.
Esse mecanismo descentralizado permite que a rede Bitcoin funcione de maneira segura, confiável e resiliente, sem depender de uma autoridade central.
6. Incentivo
O incentivo é um dos pilares fundamentais que sustenta o funcionamento da rede Bitcoin, garantindo que os participantes (nós) continuem operando de forma honesta e contribuindo com recursos computacionais. Ele é estruturado em duas partes principais: a recompensa por mineração e as taxas de transação.
Recompensa por Mineração
Por convenção, o primeiro registro em cada bloco é uma transação especial que cria novas moedas e as atribui ao criador do bloco. Essa recompensa incentiva os mineradores a dedicarem poder computacional para apoiar a rede. Como não há uma autoridade central para emitir moedas, essa é a maneira pela qual novas moedas entram em circulação. Esse processo pode ser comparado ao trabalho de garimpeiros, que utilizam recursos para colocar mais ouro em circulação. No caso do Bitcoin, o "recurso" consiste no tempo de CPU e na energia elétrica consumida para resolver a prova-de-trabalho.
Taxas de Transação
Além da recompensa por mineração, os mineradores também podem ser incentivados pelas taxas de transação. Se uma transação utiliza menos valor de saída do que o valor de entrada, a diferença é tratada como uma taxa, que é adicionada à recompensa do bloco contendo essa transação. Com o passar do tempo e à medida que o número de moedas em circulação atinge o limite predeterminado, essas taxas de transação se tornam a principal fonte de incentivo, substituindo gradualmente a emissão de novas moedas. Isso permite que o sistema opere sem inflação, uma vez que o número total de moedas permanece fixo.
Incentivo à Honestidade
O design do incentivo também busca garantir que os participantes da rede mantenham um comportamento honesto. Para um atacante que consiga reunir mais poder computacional do que o restante da rede, ele enfrentaria duas escolhas:
- Usar esse poder para fraudar o sistema, como reverter transações e roubar pagamentos.
- Seguir as regras do sistema, criando novos blocos e recebendo recompensas legítimas.
A lógica econômica favorece a segunda opção, pois um comportamento desonesto prejudicaria a confiança no sistema, diminuindo o valor de todas as moedas, incluindo aquelas que o próprio atacante possui. Jogar dentro das regras não apenas maximiza o retorno financeiro, mas também preserva a validade e a integridade do sistema.
Esse mecanismo garante que os incentivos econômicos estejam alinhados com o objetivo de manter a rede segura, descentralizada e funcional ao longo do tempo.
7. Recuperação do Espaço em Disco
Depois que uma moeda passa a estar protegida por muitos blocos na cadeia, as informações sobre as transações antigas que a geraram podem ser descartadas para economizar espaço em disco. Para que isso seja possível sem comprometer a segurança, as transações são organizadas em uma estrutura chamada "árvore de Merkle". Essa árvore funciona como um resumo das transações: em vez de armazenar todas elas, guarda apenas um "hash raiz", que é como uma assinatura compacta que representa todo o grupo de transações.
Os blocos antigos podem, então, ser simplificados, removendo as partes desnecessárias dessa árvore. Apenas a raiz do hash precisa ser mantida no cabeçalho do bloco, garantindo que a integridade dos dados seja preservada, mesmo que detalhes específicos sejam descartados.
Para exemplificar: imagine que você tenha vários recibos de compra. Em vez de guardar todos os recibos, você cria um documento e lista apenas o valor total de cada um. Mesmo que os recibos originais sejam descartados, ainda é possível verificar a soma com base nos valores armazenados.
Além disso, o espaço ocupado pelos blocos em si é muito pequeno. Cada bloco sem transações ocupa apenas cerca de 80 bytes. Isso significa que, mesmo com blocos sendo gerados a cada 10 minutos, o crescimento anual em espaço necessário é insignificante: apenas 4,2 MB por ano. Com a capacidade de armazenamento dos computadores crescendo a cada ano, esse espaço continuará sendo trivial, garantindo que a rede possa operar de forma eficiente sem problemas de armazenamento, mesmo a longo prazo.
8. Verificação de Pagamento Simplificada
É possível confirmar pagamentos sem a necessidade de operar um nó completo da rede. Para isso, o usuário precisa apenas de uma cópia dos cabeçalhos dos blocos da cadeia mais longa (ou seja, a cadeia com maior esforço de trabalho acumulado). Ele pode verificar a validade de uma transação ao consultar os nós da rede até obter a confirmação de que tem a cadeia mais longa. Para isso, utiliza-se o ramo Merkle, que conecta a transação ao bloco em que ela foi registrada.
Entretanto, o método simplificado possui limitações: ele não pode confirmar uma transação isoladamente, mas sim assegurar que ela ocupa um lugar específico na cadeia mais longa. Dessa forma, se um nó da rede aprova a transação, os blocos subsequentes reforçam essa aceitação.
A verificação simplificada é confiável enquanto a maioria dos nós da rede for honesta. Contudo, ela se torna vulnerável caso a rede seja dominada por um invasor. Nesse cenário, um atacante poderia fabricar transações fraudulentas que enganariam o usuário temporariamente até que o invasor obtivesse controle completo da rede.
Uma estratégia para mitigar esse risco é configurar alertas nos softwares de nós completos. Esses alertas identificam blocos inválidos, sugerindo ao usuário baixar o bloco completo para confirmar qualquer inconsistência. Para maior segurança, empresas que realizam pagamentos frequentes podem preferir operar seus próprios nós, reduzindo riscos e permitindo uma verificação mais direta e confiável.
9. Combinando e Dividindo Valor
No sistema Bitcoin, cada unidade de valor é tratada como uma "moeda" individual, mas gerenciar cada centavo como uma transação separada seria impraticável. Para resolver isso, o Bitcoin permite que valores sejam combinados ou divididos em transações, facilitando pagamentos de qualquer valor.
Entradas e Saídas
Cada transação no Bitcoin é composta por:
- Entradas: Representam os valores recebidos em transações anteriores.
- Saídas: Correspondem aos valores enviados, divididos entre os destinatários e, eventualmente, o troco para o remetente.
Normalmente, uma transação contém:
- Uma única entrada com valor suficiente para cobrir o pagamento.
- Ou várias entradas combinadas para atingir o valor necessário.
O valor total das saídas nunca excede o das entradas, e a diferença (se houver) pode ser retornada ao remetente como troco.
Exemplo Prático
Imagine que você tem duas entradas:
- 0,03 BTC
- 0,07 BTC
Se deseja enviar 0,08 BTC para alguém, a transação terá:
- Entrada: As duas entradas combinadas (0,03 + 0,07 BTC = 0,10 BTC).
- Saídas: Uma para o destinatário (0,08 BTC) e outra como troco para você (0,02 BTC).
Essa flexibilidade permite que o sistema funcione sem precisar manipular cada unidade mínima individualmente.
Difusão e Simplificação
A difusão de transações, onde uma depende de várias anteriores e assim por diante, não representa um problema. Não é necessário armazenar ou verificar o histórico completo de uma transação para utilizá-la, já que o registro na blockchain garante sua integridade.
10. Privacidade
O modelo bancário tradicional oferece um certo nível de privacidade, limitando o acesso às informações financeiras apenas às partes envolvidas e a um terceiro confiável (como bancos ou instituições financeiras). No entanto, o Bitcoin opera de forma diferente, pois todas as transações são publicamente registradas na blockchain. Apesar disso, a privacidade pode ser mantida utilizando chaves públicas anônimas, que desvinculam diretamente as transações das identidades das partes envolvidas.
Fluxo de Informação
- No modelo tradicional, as transações passam por um terceiro confiável que conhece tanto o remetente quanto o destinatário.
- No Bitcoin, as transações são anunciadas publicamente, mas sem revelar diretamente as identidades das partes. Isso é comparável a dados divulgados por bolsas de valores, onde informações como o tempo e o tamanho das negociações (a "fita") são públicas, mas as identidades das partes não.
Protegendo a Privacidade
Para aumentar a privacidade no Bitcoin, são adotadas as seguintes práticas:
- Chaves Públicas Anônimas: Cada transação utiliza um par de chaves diferentes, dificultando a associação com um proprietário único.
- Prevenção de Ligação: Ao usar chaves novas para cada transação, reduz-se a possibilidade de links evidentes entre múltiplas transações realizadas pelo mesmo usuário.
Riscos de Ligação
Embora a privacidade seja fortalecida, alguns riscos permanecem:
- Transações multi-entrada podem revelar que todas as entradas pertencem ao mesmo proprietário, caso sejam necessárias para somar o valor total.
- O proprietário da chave pode ser identificado indiretamente por transações anteriores que estejam conectadas.
11. Cálculos
Imagine que temos um sistema onde as pessoas (ou computadores) competem para adicionar informações novas (blocos) a um grande registro público (a cadeia de blocos ou blockchain). Este registro é como um livro contábil compartilhado, onde todos podem verificar o que está escrito.
Agora, vamos pensar em um cenário: um atacante quer enganar o sistema. Ele quer mudar informações já registradas para beneficiar a si mesmo, por exemplo, desfazendo um pagamento que já fez. Para isso, ele precisa criar uma versão alternativa do livro contábil (a cadeia de blocos dele) e convencer todos os outros participantes de que essa versão é a verdadeira.
Mas isso é extremamente difícil.
Como o Ataque Funciona
Quando um novo bloco é adicionado à cadeia, ele depende de cálculos complexos que levam tempo e esforço. Esses cálculos são como um grande quebra-cabeça que precisa ser resolvido.
- Os “bons jogadores” (nós honestos) estão sempre trabalhando juntos para resolver esses quebra-cabeças e adicionar novos blocos à cadeia verdadeira.
- O atacante, por outro lado, precisa resolver quebra-cabeças sozinho, tentando “alcançar” a cadeia honesta para que sua versão alternativa pareça válida.
Se a cadeia honesta já está vários blocos à frente, o atacante começa em desvantagem, e o sistema está projetado para que a dificuldade de alcançá-los aumente rapidamente.
A Corrida Entre Cadeias
Você pode imaginar isso como uma corrida. A cada bloco novo que os jogadores honestos adicionam à cadeia verdadeira, eles se distanciam mais do atacante. Para vencer, o atacante teria que resolver os quebra-cabeças mais rápido que todos os outros jogadores honestos juntos.
Suponha que:
- A rede honesta tem 80% do poder computacional (ou seja, resolve 8 de cada 10 quebra-cabeças).
- O atacante tem 20% do poder computacional (ou seja, resolve 2 de cada 10 quebra-cabeças).
Cada vez que a rede honesta adiciona um bloco, o atacante tem que "correr atrás" e resolver mais quebra-cabeças para alcançar.
Por Que o Ataque Fica Cada Vez Mais Improvável?
Vamos usar uma fórmula simples para mostrar como as chances de sucesso do atacante diminuem conforme ele precisa "alcançar" mais blocos:
P = (q/p)^z
- q é o poder computacional do atacante (20%, ou 0,2).
- p é o poder computacional da rede honesta (80%, ou 0,8).
- z é a diferença de blocos entre a cadeia honesta e a cadeia do atacante.
Se o atacante está 5 blocos atrás (z = 5):
P = (0,2 / 0,8)^5 = (0,25)^5 = 0,00098, (ou, 0,098%)
Isso significa que o atacante tem menos de 0,1% de chance de sucesso — ou seja, é muito improvável.
Se ele estiver 10 blocos atrás (z = 10):
P = (0,2 / 0,8)^10 = (0,25)^10 = 0,000000095, (ou, 0,0000095%).
Neste caso, as chances de sucesso são praticamente nulas.
Um Exemplo Simples
Se você jogar uma moeda, a chance de cair “cara” é de 50%. Mas se precisar de 10 caras seguidas, sua chance já é bem menor. Se precisar de 20 caras seguidas, é quase impossível.
No caso do Bitcoin, o atacante precisa de muito mais do que 20 caras seguidas. Ele precisa resolver quebra-cabeças extremamente difíceis e alcançar os jogadores honestos que estão sempre à frente. Isso faz com que o ataque seja inviável na prática.
Por Que Tudo Isso é Seguro?
- A probabilidade de sucesso do atacante diminui exponencialmente. Isso significa que, quanto mais tempo passa, menor é a chance de ele conseguir enganar o sistema.
- A cadeia verdadeira (honesta) está protegida pela força da rede. Cada novo bloco que os jogadores honestos adicionam à cadeia torna mais difícil para o atacante alcançar.
E Se o Atacante Tentar Continuar?
O atacante poderia continuar tentando indefinidamente, mas ele estaria gastando muito tempo e energia sem conseguir nada. Enquanto isso, os jogadores honestos estão sempre adicionando novos blocos, tornando o trabalho do atacante ainda mais inútil.
Assim, o sistema garante que a cadeia verdadeira seja extremamente segura e que ataques sejam, na prática, impossíveis de ter sucesso.
12. Conclusão
Propusemos um sistema de transações eletrônicas que elimina a necessidade de confiança, baseando-se em assinaturas digitais e em uma rede peer-to-peer que utiliza prova de trabalho. Isso resolve o problema do gasto duplo, criando um histórico público de transações imutável, desde que a maioria do poder computacional permaneça sob controle dos participantes honestos. A rede funciona de forma simples e descentralizada, com nós independentes que não precisam de identificação ou coordenação direta. Eles entram e saem livremente, aceitando a cadeia de prova de trabalho como registro do que ocorreu durante sua ausência. As decisões são tomadas por meio do poder de CPU, validando blocos legítimos, estendendo a cadeia e rejeitando os inválidos. Com este mecanismo de consenso, todas as regras e incentivos necessários para o funcionamento seguro e eficiente do sistema são garantidos.
Faça o download do whitepaper original em português: https://bitcoin.org/files/bitcoin-paper/bitcoin_pt_br.pdf
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@ f9cf4e94:96abc355
2025-01-18 06:09:50
Para esse exemplo iremos usar: | Nome | Imagem | Descrição | | --------------- | ------------------------------------------------------------ | ------------------------------------------------------------ | | Raspberry PI B+ |
| Cortex-A53 (ARMv8) 64-bit a 1.4GHz e 1 GB de SDRAM LPDDR2, |
| Pen drive | 
| 16Gb |Recomendo que use o Ubuntu Server para essa instalação. Você pode baixar o Ubuntu para Raspberry Pi aqui. O passo a passo para a instalação do Ubuntu no Raspberry Pi está disponível aqui. Não instale um desktop (como xubuntu, lubuntu, xfce, etc.).
Passo 1: Atualizar o Sistema 🖥️
Primeiro, atualize seu sistema e instale o Tor:
bash apt update apt install tor
Passo 2: Criar o Arquivo de Serviço
nrs.service🔧Crie o arquivo de serviço que vai gerenciar o servidor Nostr. Você pode fazer isso com o seguinte conteúdo:
```unit [Unit] Description=Nostr Relay Server Service After=network.target
[Service] Type=simple WorkingDirectory=/opt/nrs ExecStart=/opt/nrs/nrs-arm64 Restart=on-failure
[Install] WantedBy=multi-user.target ```
Passo 3: Baixar o Binário do Nostr 🚀
Baixe o binário mais recente do Nostr aqui no GitHub.
Passo 4: Criar as Pastas Necessárias 📂
Agora, crie as pastas para o aplicativo e o pendrive:
bash mkdir -p /opt/nrs /mnt/edriver
Passo 5: Listar os Dispositivos Conectados 🔌
Para saber qual dispositivo você vai usar, liste todos os dispositivos conectados:
bash lsblk
Passo 6: Formatando o Pendrive 💾
Escolha o pendrive correto (por exemplo,
/dev/sda) e formate-o:bash mkfs.vfat /dev/sda
Passo 7: Montar o Pendrive 💻
Monte o pendrive na pasta
/mnt/edriver:bash mount /dev/sda /mnt/edriver
Passo 8: Verificar UUID dos Dispositivos 📋
Para garantir que o sistema monte o pendrive automaticamente, liste os UUID dos dispositivos conectados:
bash blkid
Passo 9: Alterar o
fstabpara Montar o Pendrive Automáticamente 📝Abra o arquivo
/etc/fstabe adicione uma linha para o pendrive, com o UUID que você obteve no passo anterior. A linha deve ficar assim:fstab UUID=9c9008f8-f852 /mnt/edriver vfat defaults 0 0
Passo 10: Copiar o Binário para a Pasta Correta 📥
Agora, copie o binário baixado para a pasta
/opt/nrs:bash cp nrs-arm64 /opt/nrs
Passo 11: Criar o Arquivo de Configuração 🛠️
Crie o arquivo de configuração com o seguinte conteúdo e salve-o em
/opt/nrs/config.yaml:yaml app_env: production info: name: Nostr Relay Server description: Nostr Relay Server pub_key: "" contact: "" url: http://localhost:3334 icon: https://external-content.duckduckgo.com/iu/?u= https://public.bnbstatic.com/image/cms/crawler/COINCU_NEWS/image-495-1024x569.png base_path: /mnt/edriver negentropy: true
Passo 12: Copiar o Serviço para o Diretório de Systemd ⚙️
Agora, copie o arquivo
nrs.servicepara o diretório/etc/systemd/system/:bash cp nrs.service /etc/systemd/system/Recarregue os serviços e inicie o serviço
nrs:bash systemctl daemon-reload systemctl enable --now nrs.service
Passo 13: Configurar o Tor 🌐
Abra o arquivo de configuração do Tor
/var/lib/tor/torrce adicione a seguinte linha:torrc HiddenServiceDir /var/lib/tor/nostr_server/ HiddenServicePort 80 127.0.0.1:3334
Passo 14: Habilitar e Iniciar o Tor 🧅
Agora, ative e inicie o serviço Tor:
bash systemctl enable --now tor.serviceO Tor irá gerar um endereço
.onionpara o seu servidor Nostr. Você pode encontrá-lo no arquivo/var/lib/tor/nostr_server/hostname.
Observações ⚠️
- Com essa configuração, os dados serão salvos no pendrive, enquanto o binário ficará no cartão SD do Raspberry Pi.
- O endereço
.oniondo seu servidor Nostr será algo como:ws://y3t5t5wgwjif<exemplo>h42zy7ih6iwbyd.onion.
Agora, seu servidor Nostr deve estar configurado e funcionando com Tor! 🥳
Se este artigo e as informações aqui contidas forem úteis para você, convidamos a considerar uma doação ao autor como forma de reconhecimento e incentivo à produção de novos conteúdos.
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@ 3f770d65:7a745b24
2024-12-31 17:03:46
Here are my predictions for Nostr in 2025:
Decentralization: The outbox and inbox communication models, sometimes referred to as the Gossip model, will become the standard across the ecosystem. By the end of 2025, all major clients will support these models, providing seamless communication and enhanced decentralization. Clients that do not adopt outbox/inbox by then will be regarded as outdated or legacy systems.
Privacy Standards: Major clients such as Damus and Primal will move away from NIP-04 DMs, adopting more secure protocol possibilities like NIP-17 or NIP-104. These upgrades will ensure enhanced encryption and metadata protection. Additionally, NIP-104 MLS tools will drive the development of new clients and features, providing users with unprecedented control over the privacy of their communications.
Interoperability: Nostr's ecosystem will become even more interconnected. Platforms like the Olas image-sharing service will expand into prominent clients such as Primal, Damus, Coracle, and Snort, alongside existing integrations with Amethyst, Nostur, and Nostrudel. Similarly, audio and video tools like Nostr Nests and Zap.stream will gain seamless integration into major clients, enabling easy participation in live events across the ecosystem.
Adoption and Migration: Inspired by early pioneers like Fountain and Orange Pill App, more platforms will adopt Nostr for authentication, login, and social systems. In 2025, a significant migration from a high-profile application platform with hundreds of thousands of users will transpire, doubling Nostr’s daily activity and establishing it as a cornerstone of decentralized technologies.
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@ 16d11430:61640947
2024-12-23 16:47:01
At the intersection of philosophy, theology, physics, biology, and finance lies a terrifying truth: the fiat monetary system, in its current form, is not just an economic framework but a silent, relentless force actively working against humanity's survival. It isn't simply a failed financial model—it is a systemic engine of destruction, both externally and within the very core of our biological existence.
The Philosophical Void of Fiat
Philosophy has long questioned the nature of value and the meaning of human existence. From Socrates to Kant, thinkers have pondered the pursuit of truth, beauty, and virtue. But in the modern age, the fiat system has hijacked this discourse. The notion of "value" in a fiat world is no longer rooted in human potential or natural resources—it is abstracted, manipulated, and controlled by central authorities with the sole purpose of perpetuating their own power. The currency is not a reflection of society’s labor or resources; it is a representation of faith in an authority that, more often than not, breaks that faith with reckless monetary policies and hidden inflation.
The fiat system has created a kind of ontological nihilism, where the idea of true value, rooted in work, creativity, and family, is replaced with speculative gambling and short-term gains. This betrayal of human purpose at the systemic level feeds into a philosophical despair: the relentless devaluation of effort, the erosion of trust, and the abandonment of shared human values. In this nihilistic economy, purpose and meaning become increasingly difficult to find, leaving millions to question the very foundation of their existence.
Theological Implications: Fiat and the Collapse of the Sacred
Religious traditions have long linked moral integrity with the stewardship of resources and the preservation of life. Fiat currency, however, corrupts these foundational beliefs. In the theological narrative of creation, humans are given dominion over the Earth, tasked with nurturing and protecting it for future generations. But the fiat system promotes the exact opposite: it commodifies everything—land, labor, and life—treating them as mere transactions on a ledger.
This disrespect for creation is an affront to the divine. In many theologies, creation is meant to be sustained, a delicate balance that mirrors the harmony of the divine order. Fiat systems—by continuously printing money and driving inflation—treat nature and humanity as expendable resources to be exploited for short-term gains, leading to environmental degradation and societal collapse. The creation narrative, in which humans are called to be stewards, is inverted. The fiat system, through its unholy alliance with unrestrained growth and unsustainable debt, is destroying the very creation it should protect.
Furthermore, the fiat system drives idolatry of power and wealth. The central banks and corporations that control the money supply have become modern-day gods, their decrees shaping the lives of billions, while the masses are enslaved by debt and inflation. This form of worship isn't overt, but it is profound. It leads to a world where people place their faith not in God or their families, but in the abstract promises of institutions that serve their own interests.
Physics and the Infinite Growth Paradox
Physics teaches us that the universe is finite—resources, energy, and space are all limited. Yet, the fiat system operates under the delusion of infinite growth. Central banks print money without concern for natural limits, encouraging an economy that assumes unending expansion. This is not only an economic fallacy; it is a physical impossibility.
In thermodynamics, the Second Law states that entropy (disorder) increases over time in any closed system. The fiat system operates as if the Earth were an infinite resource pool, perpetually able to expand without consequence. The real world, however, does not bend to these abstract concepts of infinite growth. Resources are finite, ecosystems are fragile, and human capacity is limited. Fiat currency, by promoting unsustainable consumption and growth, accelerates the depletion of resources and the degradation of natural systems that support life itself.
Even the financial “growth” driven by fiat policies leads to unsustainable bubbles—inflated stock markets, real estate, and speculative assets that burst and leave ruin in their wake. These crashes aren’t just economic—they have profound biological consequences. The cycles of boom and bust undermine communities, erode social stability, and increase anxiety and depression, all of which affect human health at a biological level.
Biology: The Fiat System and the Destruction of Human Health
Biologically, the fiat system is a cancerous growth on human society. The constant chase for growth and the devaluation of work leads to chronic stress, which is one of the leading causes of disease in modern society. The strain of living in a system that values speculation over well-being results in a biological feedback loop: rising anxiety, poor mental health, physical diseases like cardiovascular disorders, and a shortening of lifespans.
Moreover, the focus on profit and short-term returns creates a biological disconnect between humans and the planet. The fiat system fuels industries that destroy ecosystems, increase pollution, and deplete resources at unsustainable rates. These actions are not just environmentally harmful; they directly harm human biology. The degradation of the environment—whether through toxic chemicals, pollution, or resource extraction—has profound biological effects on human health, causing respiratory diseases, cancers, and neurological disorders.
The biological cost of the fiat system is not a distant theory; it is being paid every day by millions in the form of increased health risks, diseases linked to stress, and the growing burden of mental health disorders. The constant uncertainty of an inflation-driven economy exacerbates these conditions, creating a society of individuals whose bodies and minds are under constant strain. We are witnessing a systemic biological unraveling, one in which the very act of living is increasingly fraught with pain, instability, and the looming threat of collapse.
Finance as the Final Illusion
At the core of the fiat system is a fundamental illusion—that financial growth can occur without any real connection to tangible value. The abstraction of currency, the manipulation of interest rates, and the constant creation of new money hide the underlying truth: the system is built on nothing but faith. When that faith falters, the entire system collapses.
This illusion has become so deeply embedded that it now defines the human experience. Work no longer connects to production or creation—it is reduced to a transaction on a spreadsheet, a means to acquire more fiat currency in a world where value is ephemeral and increasingly disconnected from human reality.
As we pursue ever-expanding wealth, the fundamental truths of biology—interdependence, sustainability, and balance—are ignored. The fiat system’s abstract financial models serve to disconnect us from the basic realities of life: that we are part of an interconnected world where every action has a reaction, where resources are finite, and where human health, both mental and physical, depends on the stability of our environment and our social systems.
The Ultimate Extermination
In the end, the fiat system is not just an economic issue; it is a biological, philosophical, theological, and existential threat to the very survival of humanity. It is a force that devalues human effort, encourages environmental destruction, fosters inequality, and creates pain at the core of the human biological condition. It is an economic framework that leads not to prosperity, but to extermination—not just of species, but of the very essence of human well-being.
To continue on this path is to accept the slow death of our species, one based not on natural forces, but on our own choice to worship the abstract over the real, the speculative over the tangible. The fiat system isn't just a threat; it is the ultimate self-inflicted wound, a cultural and financial cancer that, if left unchecked, will destroy humanity’s chance for survival and peace.
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@ 502ab02a:a2860397
2025-05-04 03:13:06
เรารู้จักกับ Circadian Rhythm และ Infradian Rhythm แล้ว คราวนี้เรามารู้จักกับ Ultradian Rhythm กันครับ จากรากศัพท์ภาษาละติน คำว่า “Ultra” แปลว่า “มากกว่า” หรือ “ถี่กว่า” คำว่า diem” = แปลว่า "วัน" พอเอามารวมกันเป็น “ultradian” ก็หมายถึงวงจรชีวภาพที่เกิดขึ้น บ่อยกว่า 1 รอบต่อวัน (ความถี่สูงกว่ารอบ 24 ชั่วโมง) ไม่ใช่ “ยาวกว่า 1 วัน” สรุปเป็นภาษาง่ายๆคือ "จังหวะชีวภาพที่เกิดซ้ำ มากกว่า 1 ครั้งภายใน 24 ชั่วโมง"
หรือถ้าเราจะเรียงลำดับของ Rythm ทั้ง 3 ประเภทเราจะได้เป็น 1.Circadian Rhythm (ประมาณ 24 ชม.) 2.Ultradian Rhythm (น้อยกว่า 24 ชม.) 3.Infradian Rhythm (มากกว่า 24 ชม.)
สำหรับตัวอย่าง Ultradian Rhythm ที่สำคัญๆนะครับ เช่น 1. วัฏจักรการนอน (Sleep Cycle) ที่แต่ละรอบ จะอยู่ที่ราวๆ 90–120 นาที สลับกันไปมาระหว่าง NREM (หลับลึก) และ REM (ฝัน) อย่างที่สายสุขภาพเรียนรู้กันมาคือ ถ้าหลับสลับครบ 4–6 รอบ จะหลับสนิท ฟื้นเช้ามาสดชื่นแจ่มใสพักผ่อนเต็มที่
แสงเช้า-แดดอ่อนๆ ช่วยรีเซ็ต circadian แต่ก็ส่งผลให้ ultradian sleep cycle เริ่มต้นตรงจังหวะพอดี นอกจากนี้ยังมีสิ่งที่เรียกว่า Power nap ตอนแดดบ่าย (20–25 นาทีแดดอ่อน) จะช่วยกระตุ้น ultradian nap cycle ให้ตื่นขึ้นมาเป๊ะ ไม่งัวเงีย ให้เลือกจุดที่แดดยังอ่อน เช่น ริมหน้าต่างที่มีแดดผ่านมานุ่ม ๆ หรือใต้ต้นไม้ที่กรองแสงได้บางส่วน ไม่จำเป็นต้องนอนตากแดดโดยตรง แต่ให้ “รับแสงธรรมชาติ” พร้อมกับงีบ จะช่วยให้ circadian และ ultradian cycles ทำงานประสานกันได้ดีขึ้น
- การหลั่งฮอร์โมนแบบพัลซ์ หรือ Pulsatile Hormone Secretion คือรูปแบบการปล่อยฮอร์โมนออกมาจากต่อมต่าง ๆ ในร่างกายแบบเป็น “จังหวะ” หรือ “เป็นช่วง” (bursts/pulses) ไม่ใช่การหลั่งออกมาอย่างต่อเนื่องตลอดเวลา เช่น เทพแห่งการลดน้ำหนัก Growth Hormone (GH) หลั่งพุ่งตอนหลับลึกทุก 3–4 ชั่วโมง / Cortisol มีพัลซ์เล็กๆ ในวัน แม้หลักๆ จะเป็น circadian แต่ก็มี ultradian pulse ทุก 1–2 ชั่วโมง ได้เหมือนกัน / Insulin & Glucagon ชัดเลยชาว keto IF รู้ดีที่สุดว่า หลั่งเป็นรอบตามมื้ออาหารและช่วงพักระหว่างมื้อ
ลองนึกภาพว่า “แสงแดง” และ “อินฟราเรด” เปรียบเหมือนอาหารเช้าของเซลล์เรา เมื่อผิวเราโดนแดดอ่อน ๆ ในช่วงเช้าหรือบ่ายแก่ แสงเหล่านี้จะซึมเข้าไปกระตุ้น “โรงไฟฟ้าประจำเซลล์” (ไมโตคอนเดรีย) ให้ผลิตพลังงาน (ATP) ขึ้นมาเพิ่ม เหมือนเติมน้ำมันให้เครื่องยนต์วิ่งได้ลื่น พอเซลล์มีพลังงานมากขึ้น ในช่วงที่ร่างกายหลั่งฮอร์โมนการซ่อมแซมอย่าง “growth hormone” (GH) ร่างกายก็จะใช้พลังงานจากแสงนี้พร้อมกับฮอร์โมนในการซ่อมแซมกล้ามเนื้อและเนื้อเยื่อต่าง ๆ ได้เต็มประสิทธิภาพขึ้นนั่นเองครับ
- ช่วงเวลาการจดจ่อ หรือ Attention Span & Energy Cycle คนทั่วไปมีสมาธิ/พลังงานโฟกัสอยู่รอบละ 90 นาที หลังจากนั้นควรพัก 10–20 นาที หากฝืนต่อเนื่อง จะเกิดอาการอ่อนล้า สมาธิหลุด
Blue light เช้า จากแดดจะไปกระตุ้นในส่วนของ suprachiasmatic nucleus (SCN) ในสมองให้ปล่อยสารกระตุ้นความตื่นตัว (เช่น คอร์ติซอล) พอสมควร ซึ่งช่วยให้ ultradian cycle ของสมาธิ (โฟกัสได้ประมาณ 90 นาที) ทำงานเต็มประสิทธิภาพ ถ้าเช้าๆ ไม่เจอแดดเลย cycle นี้จะเลื่อนออกไป ทำให้รู้สึกง่วงเหงาหาวนอนเร็ว หรือโฟกัสไม่ได้นานตามปกติ เป็นที่มาของการเพลียแม้จะตื่นสายแล้วก็ตาม
- รอบความหิว หรือ Appetite & Digestive Rhythm ชื่อเท่ห์ป่ะหล่ะ 555 คือความหิวมาเป็นรอบตามวิธีการกินของแต่ละคน ซึ่งเป็นความสัมพันธ์กับ ฮอร์โมน GI (เช่น ghrelin, leptin) ก็วิ่งเป็นรอบเหมือนกัน
แสงแดดเช้า ช่วยตั้ง leptin/ghrelin baseline ให้สมดุล ลดการกินจุกจิกนอกมื้อได้ ส่วนแสงอ่อนๆ ตอนบ่ายช่วยบูสต์ blood flow ในทางเดินอาหาร ให้ digestion cycle หรือการดูดซึมสารอาหารตรงจังหวะ
แดดเป็นแค่ส่วนสำคัญในชีวิตแต่การใช้ Ultradian Rhythm มันต้องประกอบกับกิจกรรมอื่นๆด้วยนะครับ เช่น ทำงานหรืออ่านหนังสือ 90 นาที แล้ว พัก 15–20 นาที ยืดเส้นสาย เคลื่อนไหวเล็กน้อย, ออกกำลังกายให้ตรงจังหวะ, ในช่วง ultradian break พยายามลดการใช้จอมือถือ/คอมฯ ออกไปรับแสงธรรมชาติ หรือยืดเส้น เปิดเพลงเบาๆ เพื่อหลีกเลี่ยง "stimuli" ช่วง break หรือ สิ่งเร้าภายนอก ที่มากระตุ้นประสาทสัมผัสและสมองเรา
แสงแดดจึงเป็น ตัวตั้งเวลา (zeitgeber) ที่ไม่ได้แค่กับรอบวัน-เดือน-ปี แต่รวมถึงจังหวะสั้นๆ ภายในวันด้วย การใช้แสงธรรมชาติให้พอดีในแต่ละช่วง (เช้า เบรก บ่าย) จะช่วยให้ ultradian rhythms ในด้านสมาธิ การนอน ฮอร์โมน และการย่อยอาหาร ทำงานสอดคล้องกับจังหวะชีวิตที่เป็นธรรมชาติที่สุดครับ #pirateketo #SundaySpecialเราจะไปเป็นหมูแดดเดียว #กูต้องรู้มั๊ย #ม้วนหางสิลูก #siamstr
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@ a367f9eb:0633efea
2024-12-22 21:35:22
I’ll admit that I was wrong about Bitcoin. Perhaps in 2013. Definitely 2017. Probably in 2018-2019. And maybe even today.
Being wrong about Bitcoin is part of finally understanding it. It will test you, make you question everything, and in the words of BTC educator and privacy advocate Matt Odell, “Bitcoin will humble you”.
I’ve had my own stumbles on the way.
In a very public fashion in 2017, after years of using Bitcoin, trying to start a company with it, using it as my primary exchange vehicle between currencies, and generally being annoying about it at parties, I let out the bear.
In an article published in my own literary magazine Devolution Review in September 2017, I had a breaking point. The article was titled “Going Bearish on Bitcoin: Cryptocurrencies are the tulip mania of the 21st century”.
It was later republished in Huffington Post and across dozens of financial and crypto blogs at the time with another, more appropriate title: “Bitcoin Has Become About The Payday, Not Its Potential”.
As I laid out, my newfound bearishness had little to do with the technology itself or the promise of Bitcoin, and more to do with the cynical industry forming around it:
In the beginning, Bitcoin was something of a revolution to me. The digital currency represented everything from my rebellious youth.
It was a decentralized, denationalized, and digital currency operating outside the traditional banking and governmental system. It used tools of cryptography and connected buyers and sellers across national borders at minimal transaction costs.
…
The 21st-century version (of Tulip mania) has welcomed a plethora of slick consultants, hazy schemes dressed up as investor possibilities, and too much wishy-washy language for anything to really make sense to anyone who wants to use a digital currency to make purchases.
While I called out Bitcoin by name at the time, on reflection, I was really talking about the ICO craze, the wishy-washy consultants, and the altcoin ponzis.
What I was articulating — without knowing it — was the frame of NgU, or “numbers go up”. Rather than advocating for Bitcoin because of its uncensorability, proof-of-work, or immutability, the common mentality among newbies and the dollar-obsessed was that Bitcoin mattered because its price was a rocket ship.
And because Bitcoin was gaining in price, affinity tokens and projects that were imperfect forks of Bitcoin took off as well.
The price alone — rather than its qualities — were the reasons why you’d hear Uber drivers, finance bros, or your gym buddy mention Bitcoin. As someone who came to Bitcoin for philosophical reasons, that just sat wrong with me.
Maybe I had too many projects thrown in my face, or maybe I was too frustrated with the UX of Bitcoin apps and sites at the time. No matter what, I’ve since learned something.
I was at least somewhat wrong.
My own journey began in early 2011. One of my favorite radio programs, Free Talk Live, began interviewing guests and having discussions on the potential of Bitcoin. They tied it directly to a libertarian vision of the world: free markets, free people, and free banking. That was me, and I was in. Bitcoin was at about $5 back then (NgU).
I followed every article I could, talked about it with guests on my college radio show, and became a devoted redditor on r/Bitcoin. At that time, at least to my knowledge, there was no possible way to buy Bitcoin where I was living. Very weak.
I was probably wrong. And very wrong for not trying to acquire by mining or otherwise.
The next year, after moving to Florida, Bitcoin was a heavy topic with a friend of mine who shared the same vision (and still does, according to the Celsius bankruptcy documents). We talked about it with passionate leftists at Occupy Tampa in 2012, all the while trying to explain the ills of Keynesian central banking, and figuring out how to use Coinbase.
I began writing more about Bitcoin in 2013, writing a guide on “How to Avoid Bank Fees Using Bitcoin,” discussing its potential legalization in Germany, and interviewing Jeremy Hansen, one of the first political candidates in the U.S. to accept Bitcoin donations.
Even up until that point, I thought Bitcoin was an interesting protocol for sending and receiving money quickly, and converting it into fiat. The global connectedness of it, plus this cypherpunk mentality divorced from government control was both useful and attractive. I thought it was the perfect go-between.
But I was wrong.
When I gave my first public speech on Bitcoin in Vienna, Austria in December 2013, I had grown obsessed with Bitcoin’s adoption on dark net markets like Silk Road.
My theory, at the time, was the number and price were irrelevant. The tech was interesting, and a novel attempt. It was unlike anything before. But what was happening on the dark net markets, which I viewed as the true free market powered by Bitcoin, was even more interesting. I thought these markets would grow exponentially and anonymous commerce via BTC would become the norm.
While the price was irrelevant, it was all about buying and selling goods without permission or license.
Now I understand I was wrong.
Just because Bitcoin was this revolutionary technology that embraced pseudonymity did not mean that all commerce would decentralize as well. It did not mean that anonymous markets were intended to be the most powerful layer in the Bitcoin stack.
What I did not even anticipate is something articulated very well by noted Bitcoin OG Pierre Rochard: Bitcoin as a savings technology.
The ability to maintain long-term savings, practice self-discipline while stacking stats, and embrace a low-time preference was just not something on the mind of the Bitcoiners I knew at the time.
Perhaps I was reading into the hype while outwardly opposing it. Or perhaps I wasn’t humble enough to understand the true value proposition that many of us have learned years later.
In the years that followed, I bought and sold more times than I can count, and I did everything to integrate it into passion projects. I tried to set up a company using Bitcoin while at my university in Prague.
My business model depended on university students being technologically advanced enough to have a mobile wallet, own their keys, and be able to make transactions on a consistent basis. Even though I was surrounded by philosophically aligned people, those who would advance that to actually put Bitcoin into practice were sparse.
This is what led me to proclaim that “Technological Literacy is Doomed” in 2016.
And I was wrong again.
Indeed, since that time, the UX of Bitcoin-only applications, wallets, and supporting tech has vastly improved and onboarded millions more people than anyone thought possible. The entrepreneurship, coding excellence, and vision offered by Bitcoiners of all stripes have renewed a sense in me that this project is something built for us all — friends and enemies alike.
While many of us were likely distracted by flashy and pumpy altcoins over the years (me too, champs), most of us have returned to the Bitcoin stable.
Fast forward to today, there are entire ecosystems of creators, activists, and developers who are wholly reliant on the magic of Bitcoin’s protocol for their life and livelihood. The options are endless. The FUD is still present, but real proof of work stands powerfully against those forces.
In addition, there are now dozens of ways to use Bitcoin privately — still without custodians or intermediaries — that make it one of the most important assets for global humanity, especially in dictatorships.
This is all toward a positive arc of innovation, freedom, and pure independence. Did I see that coming? Absolutely not.
Of course, there are probably other shots you’ve missed on Bitcoin. Price predictions (ouch), the short-term inflation hedge, or the amount of institutional investment. While all of these may be erroneous predictions in the short term, we have to realize that Bitcoin is a long arc. It will outlive all of us on the planet, and it will continue in its present form for the next generation.
Being wrong about the evolution of Bitcoin is no fault, and is indeed part of the learning curve to finally understanding it all.
When your family or friends ask you about Bitcoin after your endless sessions explaining market dynamics, nodes, how mining works, and the genius of cryptographic signatures, try to accept that there is still so much we have to learn about this decentralized digital cash.
There are still some things you’ve gotten wrong about Bitcoin, and plenty more you’ll underestimate or get wrong in the future. That’s what makes it a beautiful journey. It’s a long road, but one that remains worth it.
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@ af9c48b7:a3f7aaf4
2024-11-18 20:26:07
Chef's notes
This simple, easy, no bake desert will surely be the it at you next family gathering. You can keep it a secret or share it with the crowd that this is a healthy alternative to normal pie. I think everyone will be amazed at how good it really is.
Details
- ⏲️ Prep time: 30
- 🍳 Cook time: 0
- 🍽️ Servings: 8
Ingredients
- 1/3 cup of Heavy Cream- 0g sugar, 5.5g carbohydrates
- 3/4 cup of Half and Half- 6g sugar, 3g carbohydrates
- 4oz Sugar Free Cool Whip (1/2 small container) - 0g sugar, 37.5g carbohydrates
- 1.5oz box (small box) of Sugar Free Instant Chocolate Pudding- 0g sugar, 32g carbohydrates
- 1 Pecan Pie Crust- 24g sugar, 72g carbohydrates
Directions
- The total pie has 30g of sugar and 149.50g of carboydrates. So if you cut the pie into 8 equal slices, that would come to 3.75g of sugar and 18.69g carbohydrates per slice. If you decided to not eat the crust, your sugar intake would be .75 gram per slice and the carborytrates would be 9.69g per slice. Based on your objective, you could use only heavy whipping cream and no half and half to further reduce your sugar intake.
- Mix all wet ingredients and the instant pudding until thoroughly mixed and a consistent color has been achieved. The heavy whipping cream causes the mixture to thicken the more you mix it. So, I’d recommend using an electric mixer. Once you are satisfied with the color, start mixing in the whipping cream until it has a consistent “chocolate” color thorough. Once your satisfied with the color, spoon the mixture into the pie crust, smooth the top to your liking, and then refrigerate for one hour before serving.
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@ 211c0393:e9262c4d
2025-05-04 02:32:24
**日本の覚せい剤ビジネスの闇：
警察、暴力団、そして「沈黙の共犯関係」の真相**
1. 暴力団の支配構造（公的データに基づく）
- 輸入依存の理由：
- 国内製造は困難（平成6年「覚せい剤原料規制法」で規制強化）→ ミャンマー・中国からの密輸が主流（国連薬物犯罪事務所「World Drug Report 2023」）。
- 暴力団の利益率：1kgあたり仕入れ価格30万円 → 小売価格500万～1000万円（警察庁「薬物情勢報告書」2022年）。
2. 警察と暴力団の「共生関係」
- 逮捕統計の不自然さ：
- 全薬物逮捕者の70％が単純所持（厚生労働省「薬物乱用状況」2023年）。
- 密輸組織の摘発は全体の5％未満（東京地検特捜部データ）。
- メディアの検証：
- NHKスペシャル「覚せい剤戦争」（2021年）で指摘された「末端ユーザー優先捜査」の実態。
3. 矛盾する現実
- 需要の不可視性：
- G7で最高の覚せい剤価格（1gあたり3～7万円、欧米の3倍）→ 暴力団の暴利（財務省「組織犯罪資金流動調査」）。
- 使用者率は低い（人口の0.2％、国連調査）が、逮捕者の過半数を占める矛盾。
4. 「密輸組織対策」の限界
- 国際的な失敗例：
- メキシコ（カルテル摘発後も市場拡大）、欧州（合成薬物の蔓延）→ 代替組織が即座に台頭（英「The Economist」2023年6月号）。
- 日本の地理的ハンデ：
- 海上密輸の摘発率は10％未満（海上保安庁報告）。
5. 解決策の再考（事実に基づく提案）
- ADHD治療薬の合法化：
- アメリカ精神医学会「ADHD患者の60％が自己治療で違法薬物使用」（2019年研究）。
- 日本ではリタリン・アデロール禁止→ 暴力団の市場独占。
- 労働環境改革：
- 過労死ライン超えの労働者20％（厚労省「労働時間調査」2023年）→ 覚せい剤需要の一因。
6. 告発のリスクと情報源
- 匿名性の重要性：
- 過去の暴力団報復事例（2018年、告発記者への脅迫事件・毎日新聞報道）。
- 公的データのみ引用：
- 例：「警察庁統計」「国連報告書」など第三者検証可能な情報。
結論：変革のためには「事実」の可視化が必要
「薬物＝個人の道徳的問題」という幻想が、暴力団と腐敗官僚を利している。
国際データと国内統計の矛盾を突くことで、システムの欺瞞を暴ける。安全な共有のために：
- 個人特定を避け、匿名プラットフォーム（Tor上フォーラム等）で議論。
- 公的機関のデータを直接リンク（例：警察庁PDFレポート）。
この文書は、公表された統計・メディア報道のみを根拠とし、個人の推測を排除しています。
脅威を避けるため、具体的な個人・組織の非難は意図的に避けています。 -
@ e516ecb8:1be0b167
2025-05-04 01:45:38
El sol de la tarde caía oblicuo sobre un campo de hierba alta, tiñéndolo de tonos dorados y rojizos. A un lado, una formación disciplinada de hombres vestidos con armaduras de cuero y metal relucía bajo la luz. Eran legionarios romanos, cada uno portando un scutum, el gran escudo rectangular, y un gladius corto y letal. Se movían como una sola entidad, un muro de escudos erizado de puntas de lanza que asomaban por encima.
Al otro lado del campo, una fuerza más dispersa pero igualmente imponente esperaba. Eran samuráis, guerreros vestidos con armaduras lacadas de intrincado diseño. En sus manos, las brillantes curvas de las katanas reflejaban el sol poniente. Su presencia era menos de masa compacta y más de tensión contenida, como la de depredadores listos para abalanzarse.
El silencio se quebró cuando un oficial romano alzó su signum, un estandarte con el águila imperial. Al unísono, los legionarios avanzaron con paso firme, sus sandalias clavándose en la tierra. Gritaban su grito de guerra, un rugido gutural que resonaba en el aire.
Los samuráis observaron el avance implacable. Su líder, un hombre de rostro sereno con una cicatriz que le cruzaba la mejilla, desenvainó su katana con un movimiento fluido y silencioso. La hoja brilló intensamente. Con un grito agudo, dio la orden de ataque.
La batalla comenzó con un choque violento. Los legionarios, con sus escudos entrelazados, formaron una muralla impenetrable. Los samuráis se lanzaron contra ella, sus katanas trazando arcos de acero en el aire. El choque de metal contra metal llenó el campo, un coro estridente de la guerra.
Un samurái, ágil como un felino, intentó saltar sobre el muro de escudos. Pero un legionario, rápido y entrenado, lo recibió con una estocada precisa de su gladius, que encontró un hueco en la armadura. El samurái cayó, la sangre tiñendo la hierba.
Otro samurái, con un grito furioso, lanzó un corte horizontal con su katana. El golpe impactó contra un scutum, dejando una marca profunda en la madera y el metal, pero el escudo resistió. Antes de que pudiera recuperar su arma, el legionario detrás del escudo le asestó un golpe rápido con el gladius en el costado desprotegido.
La formación romana era una máquina de matar eficiente. Los legionarios trabajaban en equipo, protegiéndose mutuamente con sus escudos y atacando con sus gladius en los momentos oportunos. La disciplina y el entrenamiento eran sus mayores armas.
Sin embargo, la ferocidad y la habilidad individual de los samuráis eran innegables. Sus katanas, a pesar de no poder penetrar fácilmente la sólida pared de escudos, eran devastadoras en los espacios abiertos. Un samurái logró flanquear a un grupo de legionarios y, con movimientos rápidos y precisos, cortó brazos y piernas, sembrando el caos en la retaguardia romana.
La batalla se convirtió en un torbellino de acero y gritos. Los legionarios mantenían su formación, avanzando lentamente mientras repelían los ataques. Los samuráis, aunque sufrían bajas, no retrocedían, impulsados por su honor y su valentía.
En un punto crucial, un grupo de samuráis liderados por su comandante logró concentrar sus ataques en un sector de la línea romana. Con golpes repetidos y feroces, consiguieron romper la formación, creando una brecha. Se lanzaron a través de ella, sus katanas sedientas de sangre.
La disciplina romana se tambaleó por un momento. Los samuráis, aprovechando la oportunidad, lucharon cuerpo a cuerpo con una furia indomable. La longitud de sus katanas les daba ventaja en el combate individual, permitiéndoles mantener a raya a los legionarios con cortes amplios y letales.
Sin embargo, la respuesta romana fue rápida. Los oficiales gritaron órdenes, y las líneas se cerraron nuevamente, rodeando a los samuráis que habían penetrado la formación. Los legionarios, trabajando en parejas, inmovilizaban los largos brazos de los samuráis con sus escudos mientras otros asestaban golpes mortales con sus gladius.
La batalla continuó durante lo que pareció una eternidad. El sol finalmente se ocultó en el horizonte, tiñendo el campo de batalla de sombras oscuras y reflejos sangrientos. Ambos bandos lucharon con una determinación feroz, sin ceder terreno fácilmente.
Al final, la disciplina y la formación compacta de los legionarios comenzaron a imponerse. Lentamente, pero de manera constante, fueron cercando y diezmando a los samuráis. La muralla de escudos era demasiado sólida, y la lluvia constante de estocadas del gladius era implacable.
Los últimos samuráis lucharon con la desesperación de quienes saben que su final está cerca. Sus katanas seguían cortando con gracia mortal, pero eran superados en número y en la táctica del combate en grupo. Uno a uno, fueron cayendo, sus brillantes espadas manchadas de sangre.
Cuando la última katana cayó al suelo con un resonido metálico, un silencio pesado se cernió sobre el campo. Los legionarios, exhaustos pero victoriosos, permanecieron en formación, sus escudos goteando sangre. Habían prevalecido gracias a su disciplina, su equipo y su táctica de combate en grupo. La ferocidad individual y la maestría de la katana de los samuráis no habían sido suficientes contra la máquina de guerra romana.
La noche cubrió el campo de batalla, llevándose consigo los ecos de la lucha y dejando solo la sombría realidad de la victoria y la derrota.
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@ 41e6f20b:06049e45
2024-11-17 17:33:55
Let me tell you a beautiful story. Last night, during the speakers' dinner at Monerotopia, the waitress was collecting tiny tips in Mexican pesos. I asked her, "Do you really want to earn tips seriously?" I then showed her how to set up a Cake Wallet, and she started collecting tips in Monero, reaching 0.9 XMR. Of course, she wanted to cash out to fiat immediately, but it solved a real problem for her: making more money. That amount was something she would never have earned in a single workday. We kept talking, and I promised to give her Zoom workshops. What can I say? I love people, and that's why I'm a natural orange-piller.
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@ 4ba8e86d:89d32de4
2024-11-07 13:56:21
Tutorial feito por Grom mestre⚡poste original abaixo:
http://xh6liiypqffzwnu5734ucwps37tn2g6npthvugz3gdoqpikujju525yd.onion/240277/tutorial-criando-e-acessando-sua-conta-de-email-pela-i2p?show=240277#q240277
Bom dia/tarde/noite a todos os camaradas. Seguindo a nossa série de tutoriais referentes a tecnologias essenciais para a segurança e o anonimato dos usuários, sendo as primeiras a openPGP e a I2P, lhes apresento mais uma opção para expandir os seus conhecimentos da DW. Muitos devem conhecer os serviços de mail na onion como DNMX e mail2tor, mas e que tal um serviço de email pela I2P. Nesse tutorial eu vou mostrar a vocês como criar a sua primeira conta no hq.postman.i2p e a acessar essa conta.
É importante que vocês tenham lido a minha primeira série de tutoriais a respeito de como instalar, configurar e navegar pela I2P nostr:nevent1qqsyjcz2w0e6d6dcdeprhuuarw4aqkw730y542dzlwxwssneq3mwpaspz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsygzt4r5x6tvh39kujvmu8egqdyvf84e3w4e0mq0ckswamfwcn5eduspsgqqqqqqsyp5vcq Esse tutorial é um pré-requisito para o seguinte e portanto recomendo que leia-os antes de prosseguir com o seguinte tutorial. O tutorial de Kleopatra nostr:nevent1qqs8h7vsn5j6qh35949sa60dms4fneussmv9jd76n24lsmtz24k0xlqzyp9636rd9ktcjmwfxd7ru5qxjxyn6uch2uhas8utg8wa5hvf6vk7gqcyqqqqqqgecq8f7 é complementar dado que é extremamente recomendado assinar e criptografar as mensagens que seguem por emails pela DW. Sem mais delongas, vamos ao tutorial de fato.
1. Criando uma conta de email no hq.postman
Relembrando: Esse tutorial considera que você já tenha acesso à I2P. Entre no seu navegador e acesse o endereço hq.postman.i2p. O roteador provavelmente já contém esse endereço no seu addressbook e não haverá a necessidade de inserir o endereço b32 completo. Após entrar no site vá para a página '1 - Creating a mailbox' https://image.nostr.build/d850379fe315d2abab71430949b06d3fa49366d91df4c9b00a4a8367d53fcca3.jpg
Nessa página, insira as credenciais de sua preferências nos campos do formulário abaixo. Lembre-se que o seu endereço de email aceita apenas letras e números. Clique em 'Proceed' depois que preencher todos os campos. https://image.nostr.build/670dfda7264db393e48391f217e60a2eb87d85c2729360c8ef6fe0cf52508ab4.jpg
Uma página vai aparecer pedindo para confirmar as credenciais da sua nova conta. Se tudo estiver certo apenas clique em 'Confirm and Create Mailbox'. Se tudo ocorrer como conforme haverá uma confirmação de que a sua nova conta foi criada com sucesso. Após isso aguarde por volta de 5 minutos antes de tentar acessá-la, para que haja tempo suficiente para o servidor atualizar o banco de dados. https://image.nostr.build/ec58fb826bffa60791fedfd9c89a25d592ac3d11645b270c936c60a7c59c067f.jpg https://image.nostr.build/a2b7710d1e3cbb36431acb9055fd62937986b4da4b1a1bbb06d3f3cb1f544fd3.jpg
Pronto! Sua nova conta de email na I2P foi criada. Agora vamos para a próxima etapa: como acessar a sua conta via um cliente de email.
2. Configurando os túneis cliente de SMTP e POP3
O hq.postman não possui um cliente web que nos permite acessar a nossa conta pelo navegador. Para isso precisamos usar um cliente como Thunderbird e configurar os túneis cliente no I2Pd que serão necessários para o Thunderbird se comunicar com o servidor pela I2P.
Caso não tenha instalado o Thunderbird ainda, faça-o agora antes de prosseguir.
Vamos configurar os túneis cliente do servidor de email no nosso roteador. Para isso abra um terminal ou o seu gestor de arquivos e vá para a pasta de configuração de túneis do I2P. Em Linux esse diretório se localiza em /etc/i2pd/tunnels.d. Em Windows, essa pasta se localiza em C:\users\user\APPDATA\i2pd. Na pasta tunnels.d crie dois arquivos: smtp.postman.conf e pop-postman.conf. Lembre-se que em Linux você precisa de permissões de root para escrever na pasta de configuração. Use o comando sudoedit
para isso. Edite-os conforme as imagens a seguir:
Arquivo pop-postman.conf https://image.nostr.build/7e03505c8bc3b632ca5db1f8eaefc6cecb4743cd2096d211dd90bbdc16fe2593.jpg
Arquivo smtp-postman.conf https://image.nostr.build/2d06c021841dedd6000c9fc2a641ed519b3be3c6125000b188842cd0a5af3d16.jpg
Salve os arquivos e reinicie o serviço do I2Pd. Em Linux isso é feito pelo comando:
sudo systemctl restart i2pdEntre no Webconsole do I2Pd pelo navegador (localhost:7070) e na seção I2P Tunnels, verifique se os túneis pop-postman e smtp-postman foram criados, caso contrário verifique se há algum erro nos arquivos e reinicie o serviço.Com os túneis cliente criados, vamos agora configurar o Thunderbird
3. Configurando o Thunderbird para acessar a nossa conta
Abra o Thunderbird e clique em criar uma nova conta de email. Se você não tiver nenhum conta previamente presente nele você vai ser diretamente recebido pela janela de criação de conta a seguir. https://image.nostr.build/e9509d7bd30623716ef9adcad76c1d465f5bc3d5840e0c35fe4faa85740f41b4.jpg https://image.nostr.build/688b59b8352a17389902ec1e99d7484e310d7d287491b34f562b8cdd9dbe8a99.jpg
Coloque as suas credenciais, mas não clique ainda em Continuar. Clique antes em Configure Manually, já que precisamos configurar manualmente os servidores de SMTP e POP3 para, respectivamente, enviar e receber mensagens.
Preencha os campos como na imagem a seguir. Detalhe: Não coloque o seu endereço completo com o @mail.i2p, apenas o nome da sua conta. https://image.nostr.build/4610b0315c0a3b741965d3d7c1e4aff6425a167297e323ba8490f4325f40cdcc.jpg
Clique em Re-test para verificar a integridade da conexão. Se tudo estiver certo uma mensagem irá aparecer avisando que as configurações do servidores estão corretas. Clique em Done assim que estiver pronto para prosseguir. https://image.nostr.build/8a47bb292f94b0d9d474d4d4a134f8d73afb84ecf1d4c0a7eb6366d46bf3973a.jpg
A seguinte mensagem vai aparecer alertando que não estamos usando criptografia no envio das credenciais. Não há problema nenhum aqui, pois a I2P está garantindo toda a proteção e anonimato dos nossos dados, o que dispensa a necessidade de uso de TLS ou qualquer tecnologia similar nas camadas acima. Marque a opção 'I Understand the risks' e clique em 'Continue' https://image.nostr.build/9c1bf585248773297d2cb1d9705c1be3bd815e2be85d4342227f1db2f13a9cc6.jpg
E por fim, se tudo ocorreu como devido sua conta será criada com sucesso e você agora será capaz de enviar e receber emails pela I2P usando essa conta. https://image.nostr.build/8ba7f2c160453c9bfa172fa9a30b642a7ee9ae3eeb9b78b4dc24ce25aa2c7ecc.jpg
4. Observações e considerações finais
Como informado pelo próprio site do hq.postman, o domínio @mail.i2p serve apenas para emails enviados dentro da I2P. Emails enviados pela surface devem usar o domínio @i2pmai.org. É imprescindível que você saiba usar o PGP para assinar e criptografar as suas mensagens, dado que provavelmente as mensagens não são armazenadas de forma criptografada enquanto elas estão armazenadas no servidor. Como o protocolo POP3 delete as mensagens no imediato momento em que você as recebe, não há necessidade de fazer qualquer limpeza na sua conta de forma manual.
Por fim, espero que esse tutorial tenha sido útil para vocês. Que seu conhecimento tenha expandido ainda mais com as informações trazidas aqui. Até a próxima.
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@ 5df413d4:2add4f5b
2025-05-04 01:13:31
Short photo-stories of the hidden, hard to find, obscure, and off the beaten track.
Come now, take a walk with me…
The Traveller 02: Jerusalem Old City
The bus slowly lurches up the winding and steep embankment. We can finally start to see the craggy tops of buildings peaking out over the ridge in the foreground distance. We have almost reached it. Jerusalem, the City on the Hill.
https://i.nostr.build/e2LpUKEgGBwfveGi.jpg
Our Israeli tour guide speaks over the mic to draw our attention to the valley below us instead - “This is the the Valley of Gehenna, the Valley of the Moloch,” he says. “In ancient times, the pagans who worshiped Moloch used this place for child sacrifice by fire. Now, imagine yourself, an early Hebrew, sitting atop the hill, looking down in horror. This is the literal Valley of The Shadow of Death, the origin of the Abrahamic concept of Hell.” Strong open - this is going to be fun.
https://i.nostr.build/5F29eBKZYs4bEMHk.jpg
Inside the Old City, our guide - a chubby, cherub-faced intelligence type on some sort of punishment duty, deputized to babysit foreigners specifically because he reads as so dopey and disarming - points out various Judeo-Christian sites on a map, his tone subtly suggesting which places are most suggested, or perhaps, permitted…
https://i.nostr.build/J44fhGWc9AZ5qpK4.jpg
https://i.nostr.build/3c0jh09nx6d5cEdt.jpg
Walking, we reach Judaism’s Kotel, the West Wall - massive, grand, and ancient, whispering of the Eternal. Amongst the worshipers, we touch the warm, dry limestone and, if we like, place written prayers into the wall's smaller cracks. A solemn and yearning ghost fills the place - but whose it is, I'm not sure.  https://i.nostr.build/AjDwA0rFiFPlrw1o.jpg
Just above the Kotel, Islam’s Dome of the Rock can be seen, its golden cap blazing in the sun. I ask our guide about visiting the dome. He cuts a heavy eyeroll in my direction - it seems I’ve outed myself as my group’s “that guy.” His face says more than words ever could, “Oy vey, there’s one in every group…”
“Why would anyone want to go there? It is a bit intense, no?” Still, I press. “Well, it is only open to tourists on Tuesday and Thursdays…” It is Tuesday. “And even then, visiting only opens from 11:30…” It is 11:20. As it becomes clear to him that I don't intend to drop this...“Fine!” he relents, with a dramatic flaring of the hands and an uniquely Israeli sigh, “Go there if you must. But remember, the bus leaves at 1PM. Good luck...” Great! Totally not ominous at all.
https://i.nostr.build/6aBhT61C28QO9J69.jpg
The checkpoint for the sole non-Muslim entrance leading up to the Dome is administered by several gorgeous and statuesque, assault rifle clad, Ethiop-Israeli female soldiers. In this period of relative peace and calm, they feel lax enough to make a coy but salacious game of their “screening” the men in line. As I observe, it seems none doth protest...
https://i.nostr.build/jm8F3pUp9EXqPRkN.jpg
Past the gun-totting Sirens, a long wooden rampart leads up to the Temple Mount, The Mount of the House of the Holy, al-Ḥaram al-Sharīf, The Noble Sanctuary, The Furthest Mosque, the site of the Dome of the Rock and the al-Masjid al-Asqa.
https://i.nostr.build/DoS0KIkrVN0yiVJ0.jpg
On the Mount, the Dome dominates all views. To those interested in pure expressions of beauty, the Dome is, undeniably, a thing of absolute glory. I pace the grounds, snapping what pictures I can. I pause to breathe and to let the electric energy of the setting wash over me.
https://i.nostr.build/0BQYLwpU291q2fBt.jpg
https://i.nostr.build/yCxfB1V8eAcfob93.jpg
It’s 12:15 now, I decide to head back. Now, here is what they don’t tell you. The non-Muslin entrance from the West Wall side is a one-way deal. Leaving the Dome plaza dumps you out into the back alley bazaar of Old City’s Muslim district. And so it is. I am lost.
https://i.nostr.build/XnQ5eZgjeS1UTEBt.jpg
https://i.nostr.build/EFGD5vgmFx5YYuH4.jpg
I run through the Muslim quarter, blindly turning down alleyways that seem to be taking me in the general direction of where I need to be - glimpses afforded by the city’s uneven elevation and cracks in ancient stone walls guiding my way.
https://i.nostr.build/mWIEAXlJfdqt3nuh.jpg
In a final act of desperation and likely a significant breach of Israeli security protocol, I scale a low wall and flop down back on the side of things where I'm “supposed” to be. But either no one sees me or no one cares. Good luck, indeed.
I make it back to my group - they are not hard to find, a bunch of MBAs in “business casual” travel attire and a tour guide wearing a loudly colored hat and jacket - with just enough time to still visit the Church of the Holy Sepulcher.
https://i.nostr.build/3nFvsXdhd0LQaZd7.jpg
https://i.nostr.build/sKnwqC0HoaZ8winW.jpg
Inside, a chaotic and dizzying array of chapels, grand domed ceilings, and Christian relics - most notably the Stone of Anointing, commemorating where Christ’s body was prepared for burial and Tomb of Christ, where Christ is said to have laid for 3 days before Resurrection.
https://i.nostr.build/Lb4CTj1dOY1pwoN6.jpg
https://i.nostr.build/LaZkYmUaY8JBRvwn.jpg
In less than an hour, one can traverse from the literal Hell, to King David’s Wall, The Tomb of Christ, and the site of Muhammad’s Ascension. The question that stays with me - What is it about this place that has caused so many to turn their heads to the heavens and cry out for God? Does he hear? And if he answers, do we listen?
https://i.nostr.build/elvlrd7rDcEaHJxT.jpg
Jerusalem, The Old City, circa 2014. Israel.
There are secrets to be found. Go there.
Bitcoin #Jerusalem #Israel #Travel #Photography #Art #Story #Storytelling #Nostr #Zap #Zaps #Plebchain #Coffeechain #Bookstr #NostrArt #Writing #Writestr #Createstr
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@ 5df413d4:2add4f5b
2025-05-04 00:51:49
Short photo-stories of the hidden, hard to find, obscure, and off the beaten track.
Come now, take a walk with me…
The Traveller 01: Ku/苦 Bar
Find a dingy, nondescript alley in a suspiciously quiet corner of Bangkok’s Chinatown at night. Walk down it. Pass the small prayer shrine that houses the angels who look over these particular buildings and approach an old wooden door. You were told that there is a bar here, as to yet nothing suggests that this is so…
Wait! A closer inspection reveals a simple bronze plaque, out of place for its polish and tended upkeep, “cocktails 3rd floor.” Up the stairs then! The landing on floor 3 presents a white sign with the Chinese character for bitter, ku/苦, and a red arrow pointing right.
Pass through the threshold, enter a new space. To your right, a large expanse of barren concrete, an empty “room.” Tripods for…some kind of filming? A man-sized, locked container. Yet, you did not come here to ask questions, such things are none of your business!
And to your left, you find the golden door. Approach. Enter. Be greeted. You have done well! You have found it. 苦 Bar. You are among friends now. Inside exudes deep weirdness - in the etymological sense - the bending of destinies, control of the fates. And for the patrons, a quiet yet social place, a sensual yet sacred space.
Ethereal sounds, like forlorn whale songs fill the air, a strange music for an even stranger magic. But, Taste! Taste is the order of the day! Fragrant, Bizarre, Obscure, Dripping and Arcane. Here you find a most unique use flavor, flavors myriad and manifold, flavors beyond name. Buddha’s hand, burnt cedar charcoal, ylang ylang, strawberry leaf, maybe wild roots brought in by some friendly passerby, and many, many other things. So, Taste! The drinks here, libations even, are not so much to be liked or disliked, rather, the are liquid context, experience to be embraced with a curious mind and soul freed from judgment.
And In the inner room, one may find another set of stairs. Down this time. Leading to the second place - KANGKAO. A natural wine bar, or so they say. Cozy, botanical, industrial, enclosed. The kind of private setting where you might overhear Bangkok’s resident “State Department,” “UN,” and “NGO” types chatting auspiciously in both Mandarin and English with their Mainland Chinese counterparts. But don’t look hard or listen too long! Surely, there’s no reason to be rude… Relax, relax, you are amongst friends now.
**苦 Bar. Bangkok, circa 2020. There are secrets to be found. Go there. **
Plebchain #Bitcoin #NostrArt #ArtOnNostr #Writestr #Createstr #NostrLove #Travel #Photography #Art #Story #Storytelling #Nostr #Zap #Zaps #Bangkok #Thailand #Siamstr
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@ ec42c765:328c0600
2024-10-21 07:42:48
2024年3月
フィリピンのセブ島へ旅行。初海外。
Nostrに投稿したらこんなリプライが
nostr:nevent1qqsff87kdxh6szf9pe3egtruwfz2uw09rzwr6zwpe7nxwtngmagrhhqc2qwq5
nostr:nevent1qqs9c8fcsw0mcrfuwuzceeq9jqg4exuncvhas5lhrvzpedeqhh30qkcstfluj
（ビットコイン関係なく普通の旅行のつもりで行ってた。というか常にビットコインのこと考えてるわけではないんだけど…）
そういえばフィリピンでビットコイン決済できるお店って多いのかな？
海外でビットコイン決済ってなんかかっこいいな！
やりたい！
ビットコイン決済してみよう！ in セブ島
BTCMap でビットコイン決済できるところを探す
本場はビットコインアイランドと言われてるボラカイ島みたいだけど
セブにもそれなりにあった！
なんでもいいからビットコイン決済したいだけなので近くて買いやすい店へ
いざタピオカミルクティー屋！
ちゃんとビットコインのステッカーが貼ってある！
つたない英語とGoogle翻訳を使ってビットコイン決済できるか店員に聞いたら
店員「ビットコインで支払いはできません」
（えーーーー、なんで…ステッカー貼ってあるやん…。）
まぁなんか知らんけどできないらしい。
店員に色々質問したかったけど質問する英語力もないのでする気が起きなかった
結局、せっかく店まで足を運んだので普通に現金でタピオカミルクティーを買った
タピオカミルクティー
話題になってた時も特に興味なくて飲んでなかったので、これが初タピオカミルクティーになった
法定通貨の味がした。
どこでもいいからなんでもいいから
海外でビットコイン決済してみたい
ビットコイン決済させてくれ！ in ボラカイ島
ビットコインアイランドと呼ばれるボラカイ島はめちゃくちゃビットコイン決済できるとこが多いらしい
でもやめてしまった店も多いらしい
でも300もあったならいくつかはできるとこあるやろ！
nostr:nevent1qqsw0n6utldy6y970wcmc6tymk20fdjxt6055890nh8sfjzt64989cslrvd9l
行くしかねぇ！
ビットコインアイランドへ
フィリピンの国内線だぁ
``` 行き方： Mactan-Cebu International Airport ↓飛行機 Godofredo P. Ramos Airport (Caticlan International Airport, Boracay Airport) ↓バスなど Caticlan フェリーターミナル ↓船 ボラカイ島
料金： 飛行機（受託手荷物付き） 往復 21,000円くらい 空港～ボラカイ島のホテルまで（バス、船、諸経費） 往復 3,300円くらい （klookからSouthwest Toursを利用）
このページが色々詳しい https://smaryu.com/column/d/91761/ ```
空港おりたらSouthwestのバスに乗る
事前にネットで申し込みをしている場合は5番窓口へ
港！
船！（めっちゃ速い）
ボラカイついた！
ボラカイ島の移動手段
セブの移動はgrabタクシーが使えるがボラカイにはない。
ネットで検索するとトライシクルという三輪タクシーがおすすめされている。
（トライシクル：開放的で風がきもちいい）トライシクルの欠点はふっかけられるので値切り交渉をしないといけないところ。
最初に300phpくらいを提示され、行き先によるけど150phpくらいまでは下げられる。
これはこれで楽しい値切り交渉だけど、個人的にはトライシクルよりバスの方が気楽。
Hop On Hop Off バス：
https://www.hohoboracay.com/pass.php
一日乗り放題250phpなので往復や途中でどこか立ち寄ったりを考えるとお得。
バスは現金が使えないので事前にどこかでカードを買うか車内で買う。私は何も知らずに乗って車内で乗務員さんから現金でカードを買った。
バスは狭い島内を数本がグルグル巡回してるので20～30分に1本くらいは来るイメージ。
逆にトライシクルは待たなくても捕まえればすぐに乗れるところがいいところかもしれない。
現実
ボラカイ島 BTC Map
BTC決済できるとこめっちゃあるさっそく店に行く！
「bitcoin accepted here」のステッカーを見つける！
店員にビットコイン支払いできるか聞く！
できないと言われる！
もう一軒行く
「bitcoin accepted here」のステッカーを見つける
店員にビットコイン支払いできるか聞く
できないと言われる
5件くらいは回った
全部できない！
悲しい
で、ネットでビットコインアイランドで検索してみると
旅行日の一か月前くらいにアップロードされた動画があったので見てみた
要約 - ビットコイン決済はpouch.phというスタートアップ企業がボラカイ島の店にシステムを導入した - ビットコインアイランドとすることで観光客が10％～30％増加つまり数百～千人程度のビットコインユーザーが来ると考えた - しかし実際には3～5人だった - 結果的に200の店舗がビットコイン決済を導入しても使われたのはごく一部だった - ビットコイン決済があまり使われないので店員がやり方を忘れてしまった - 店は関心を失いpouchのアプリを消した
https://youtu.be/uaqx6794ipc?si=Afq58BowY1ZrkwaQ
なるほどね～
しゃあないわ
聖地巡礼
動画内でpouchのオフィスだったところが紹介されていた
これは半年以上前の画像らしい
現在はオフィスが閉鎖されビットコインの看板は色あせている
おもしろいからここに行ってみよう！となったで行ってみた
看板の色、更に薄くなってね！？
記念撮影
これはこれで楽しかった場所はこの辺
https://maps.app.goo.gl/WhpEV35xjmUw367A8
ボラカイ島の中心部の結構いいとこ
みんな～ビットコイン（の残骸）の聖地巡礼、行こうぜ！
最後の店
Nattoさんから情報が
なんかあんまりネットでも今年になってからの情報はないような…https://t.co/hiO2R28sfO
— Natto (@madeofsoya) March 22, 2024
ここは比較的最近…？https://t.co/CHLGZuUz04もうこれで最後だと思ってダメもとで行ってみた なんだろうアジア料理屋さん？
もはや信頼度0の「bitcoin accepted here」
ビットコイン払いできますか？
店員「できますよ」
え？ほんとに？ビットコイン払いできる？
店員「できます」
できる！！！！
なんかできるらしい。
適当に商品を注文して
印刷されたQRコードを出されたので読み取る
ここでスマートに決済できればよかったのだが結構慌てた
自分は英語がわからないし相手はビットコインがわからない
それにビットコイン決済は日本で１回したことがあるだけだった
どうもライトニングアドレスのようだ送金額はこちらで指定しないといけない
店員はフィリピンペソ建ての金額しか教えてくれない
何sats送ればいいのか分からない
ここでめっちゃ混乱した
でもウォレットの設定変えればいいと気付いた
普段円建てにしているのをフィリピンペソ建てに変更すればいいだけだった
設定を変更したら相手が提示している金額を入力して送金
送金は2、3秒で完了した
やった！
海外でビットコイン決済したぞ！
ログ
PORK CHAR SIU BUN とかいうやつを買った
普通にめっちゃおいしかったなんかビットコイン決済できることにビビッて焦って一品しか注文しなかったけどもっと頼めばよかった
ここです。みなさん行ってください。
Bunbun Boracay
https://maps.app.goo.gl/DX8UWM8Y6sEtzYyK6
めでたしめでたし
以下、普通の観光写真
セブ島
ジンベエザメと泳いだ
スミロン島でシュノーケリング
市場の路地裏のちょっとしたダウンタウン？スラム？をビビりながら歩いた
ボホール島
なんか変な山
メガネザル
現地の子供が飛び込みを披露してくれた
ボラカイ島
ビーチ
夕日
藻
ボラカイ島にはいくつかビーチがあって宿が多いところに近い南西のビーチ、ホワイトビーチは藻が多かった（時期によるかも）
北側のプカシェルビーチは全然藻もなく、水も綺麗でめちゃくちゃよかった
プカシェルビーチ
おわり！
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@ 3bf0c63f:aefa459d
2024-09-18 10:37:09
How to do curation and businesses on Nostr
Suppose you want to start a Nostr business.
You might be tempted to make a closed platform that reuses Nostr identities and grabs (some) content from the external Nostr network, only to imprison it inside your thing -- and then you're going to run an amazing AI-powered algorithm on that content and "surface" only the best stuff and people will flock to your app.
This will be specially good if you're going after one of the many unexplored niches of Nostr in which reading immediately from people you know doesn't work as you generally want to discover new things from the outer world, such as:
- food recipe sharing;
- sharing of long articles about varying topics;
- markets for used goods;
- freelancer work and job offers;
- specific in-game lobbies and matchmaking;
- directories of accredited professionals;
- sharing of original music, drawings and other artistic creations;
- restaurant recommendations
- and so on.
But that is not the correct approach and damages the freedom and interoperability of Nostr, posing a centralization threat to the protocol. Even if it "works" and your business is incredibly successful it will just enshrine you as the head of a platform that controls users and thus is prone to all the bad things that happen to all these platforms. Your company will start to display ads and shape the public discourse, you'll need a big legal team, the FBI will talk to you, advertisers will play a big role and so on.
If you are interested in Nostr today that must be because you appreciate the fact that it is not owned by any companies, so it's safe to assume you don't want to be that company that owns it. So what should you do instead? Here's an idea in two steps:
- Write a Nostr client tailored to the niche you want to cover
If it's a music sharing thing, then the client will have a way to play the audio and so on; if it's a restaurant sharing it will have maps with the locations of the restaurants or whatever, you get the idea. Hopefully there will be a NIP or a NUD specifying how to create and interact with events relating to this niche, or you will write or contribute with the creation of one, because without interoperability this can't be Nostr.
The client should work independently of any special backend requirements and ideally be open-source. It should have a way for users to configure to which relays they want to connect to see "global" content -- i.e., they might want to connect to
wss://nostr.chrysalisrecords.com/to see only the latest music releases accredited by that label or towss://nostr.indiemusic.com/to get music from independent producers from that community.- Run a relay that does all the magic
This is where your value-adding capabilities come into play: if you have that magic sauce you should be able to apply it here. Your service -- let's call it
wss://magicsaucemusic.com/-- will charge people or do some KYM (know your music) validation or use some very advanced AI sorcery to filter out the spam and the garbage and display the best content to your users who will request the global feed from it (["REQ", "_", {}]), and this will cause people to want to publish to your relay while others will want to read from it.You set your relay as the default option in the client and let things happen. Your relay is like your "website" and people are free to connect to it or not. You don't own the network, you're just competing against other websites on a leveled playing field, so you're not responsible for it. Users get seamless browsing across multiple websites, unified identities, a unified interface (that could be different in a different client) and social interaction capabilities that work in the same way for all, and they do not depend on you, therefore they're more likely to trust you.
Does this centralize the network still? But this a simple and easy way to go about the matter and scales well in all aspects.
Besides allowing users to connect to specific relays for getting a feed of curated content, such clients should also do all kinds of "social" (i.e. following, commenting etc) activities (if they choose to do that) using the outbox model -- i.e. if I find a musician I like under
wss://magicsaucemusic.comand I decide to follow them I should keep getting updates from them even if they get banned from that relay and start publishing onwss://nos.lolorwss://relay.damus.ioor whatever relay that doesn't even know anything about music.The hardcoded defaults and manual typing of relay URLs can be annoying. But I think it works well at the current stage of Nostr development. Soon, though, we can create events that recommend other relays or share relay lists specific to each kind of activity so users can get in-app suggestions of relays their friends are using to get their music from and so on. That kind of stuff can go a long way.
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@ ee11a5df:b76c4e49
2024-09-11 08:16:37
Bye-Bye Reply Guy
There is a camp of nostr developers that believe spam filtering needs to be done by relays. Or at the very least by DVMs. I concur. In this way, once you configure what you want to see, it applies to all nostr clients.
But we are not there yet.
In the mean time we have ReplyGuy, and gossip needed some changes to deal with it.
Strategies in Short
- WEB OF TRUST: Only accept events from people you follow, or people they follow - this avoids new people entirely until somebody else that you follow friends them first, which is too restrictive for some people.
- TRUSTED RELAYS: Allow every post from relays that you trust to do good spam filtering.
- REJECT FRESH PUBKEYS: Only accept events from people you have seen before - this allows you to find new people, but you will miss their very first post (their second post must count as someone you have seen before, even if you discarded the first post)
- PATTERN MATCHING: Scan for known spam phrases and words and block those events, either on content or metadata or both or more.
- TIE-IN TO EXTERNAL SYSTEMS: Require a valid NIP-05, or other nostr event binding their identity to some external identity
- PROOF OF WORK: Require a minimum proof-of-work
All of these strategies are useful, but they have to be combined properly.
filter.rhai
Gossip loads a file called "filter.rhai" in your gossip directory if it exists. It must be a Rhai language script that meets certain requirements (see the example in the gossip source code directory). Then it applies it to filter spam.
This spam filtering code is being updated currently. It is not even on unstable yet, but it will be there probably tomorrow sometime. Then to master. Eventually to a release.
Here is an example using all of the techniques listed above:
```rhai // This is a sample spam filtering script for the gossip nostr // client. The language is called Rhai, details are at: // https://rhai.rs/book/ // // For gossip to find your spam filtering script, put it in // your gossip profile directory. See // https://docs.rs/dirs/latest/dirs/fn.data_dir.html // to find the base directory. A subdirectory "gossip" is your // gossip data directory which for most people is their profile // directory too. (Note: if you use a GOSSIP_PROFILE, you'll // need to put it one directory deeper into that profile // directory). // // This filter is used to filter out and refuse to process // incoming events as they flow in from relays, and also to // filter which events get/ displayed in certain circumstances. // It is only run on feed-displayable event kinds, and only by // authors you are not following. In case of error, nothing is // filtered. // // You must define a function called 'filter' which returns one // of these constant values: // DENY (the event is filtered out) // ALLOW (the event is allowed through) // MUTE (the event is filtered out, and the author is // automatically muted) // // Your script will be provided the following global variables: // 'caller' - a string that is one of "Process", // "Thread", "Inbox" or "Global" indicating // which part of the code is running your // script // 'content' - the event content as a string // 'id' - the event ID, as a hex string // 'kind' - the event kind as an integer // 'muted' - if the author is in your mute list // 'name' - if we have it, the name of the author // (or your petname), else an empty string // 'nip05valid' - whether nip05 is valid for the author, // as a boolean // 'pow' - the Proof of Work on the event // 'pubkey' - the event author public key, as a hex // string // 'seconds_known' - the number of seconds that the author // of the event has been known to gossip // 'spamsafe' - true only if the event came in from a // relay marked as SpamSafe during Process // (even if the global setting for SpamSafe // is off)
fn filter() {
// Show spam on global // (global events are ephemeral; these won't grow the // database) if caller=="Global" { return ALLOW; } // Block ReplyGuy if name.contains("ReplyGuy") || name.contains("ReplyGal") { return DENY; } // Block known DM spam // (giftwraps are unwrapped before the content is passed to // this script) if content.to_lower().contains( "Mr. Gift and Mrs. Wrap under the tree, KISSING!" ) { return DENY; } // Reject events from new pubkeys, unless they have a high // PoW or we somehow already have a nip05valid for them // // If this turns out to be a legit person, we will start // hearing their events 2 seconds from now, so we will // only miss their very first event. if seconds_known <= 2 && pow < 25 && !nip05valid { return DENY; } // Mute offensive people if content.to_lower().contains(" kike") || content.to_lower().contains("kike ") || content.to_lower().contains(" nigger") || content.to_lower().contains("nigger ") { return MUTE; } // Reject events from muted people // // Gossip already does this internally, and since we are // not Process, this is rather redundant. But this works // as an example. if muted { return DENY; } // Accept if the PoW is large enough if pow >= 25 { return ALLOW; } // Accept if their NIP-05 is valid if nip05valid { return ALLOW; } // Accept if the event came through a spamsafe relay if spamsafe { return ALLOW; } // Reject the rest DENY} ```
-
@ 3bf0c63f:aefa459d
2024-09-06 12:49:46
Nostr: a quick introduction, attempt #2
Nostr doesn't subscribe to any ideals of "free speech" as these belong to the realm of politics and assume a big powerful government that enforces a common ruleupon everybody else.
Nostr instead is much simpler, it simply says that servers are private property and establishes a generalized framework for people to connect to all these servers, creating a true free market in the process. In other words, Nostr is the public road that each market participant can use to build their own store or visit others and use their services.
(Of course a road is never truly public, in normal cases it's ran by the government, in this case it relies upon the previous existence of the internet with all its quirks and chaos plus a hand of government control, but none of that matters for this explanation).
More concretely speaking, Nostr is just a set of definitions of the formats of the data that can be passed between participants and their expected order, i.e. messages between clients (i.e. the program that runs on a user computer) and relays (i.e. the program that runs on a publicly accessible computer, a "server", generally with a domain-name associated) over a type of TCP connection (WebSocket) with cryptographic signatures. This is what is called a "protocol" in this context, and upon that simple base multiple kinds of sub-protocols can be added, like a protocol for "public-square style microblogging", "semi-closed group chat" or, I don't know, "recipe sharing and feedback".
-
@ 0176967e:1e6f471e
2024-07-28 15:31:13
Objavte, ako avatari a pseudonymné identity ovplyvňujú riadenie kryptokomunít a decentralizovaných organizácií (DAOs). V tejto prednáške sa zameriame na praktické fungovanie decentralizovaného rozhodovania, vytváranie a správu avatarových profilov, a ich rolu v online reputačných systémoch. Naučíte sa, ako si vytvoriť efektívny pseudonymný profil, zapojiť sa do rôznych krypto projektov a využiť svoje aktivity na zarábanie kryptomien. Preskúmame aj príklady úspešných projektov a stratégie, ktoré vám pomôžu zorientovať sa a uspieť v dynamickom svete decentralizovaných komunít.
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@ 0176967e:1e6f471e
2024-07-28 09:16:10
Jan Kolčák pochádza zo stredného Slovenska a vystupuje pod umeleckým menom Deepologic. Hudbe sa venuje už viac než 10 rokov. Začínal ako DJ, ktorý s obľubou mixoval klubovú hudbu v štýloch deep-tech a afrohouse. Stále ho ťahalo tvoriť vlastnú hudbu, a preto sa začal vzdelávať v oblasti tvorby elektronickej hudby. Nakoniec vydal svoje prvé EP s názvom "Rezonancie". Učenie je pre neho celoživotný proces, a preto sa neustále zdokonaľuje v oblasti zvuku a kompozície, aby jeho skladby boli kvalitné na posluch aj v klube.
V roku 2023 si založil vlastnú značku EarsDeep Records, kde dáva príležitosť začínajúcim producentom. Jeho značku podporujú aj etablované mená slovenskej alternatívnej elektronickej scény. Jeho prioritou je sloboda a neškatulkovanie. Ako sa hovorí v jednej klasickej deephouseovej skladbe: "We are all equal in the house of deep." So slobodou ide ruka v ruke aj láska k novým technológiám, Bitcoinu a schopnosť udržať si v digitálnom svete prehľad, odstup a anonymitu.
V súčasnosti ďalej produkuje vlastnú hudbu, venuje sa DJingu a vedie podcast, kde zverejňuje svoje mixované sety. Na Lunarpunk festivale bude hrať DJ set tvorený vlastnou produkciou, ale aj skladby, ktoré sú blízke jeho srdcu.
Podcast Bandcamp Punk Nostr website alebo nprofile1qythwumn8ghj7un9d3shjtnwdaehgu3wvfskuep0qy88wumn8ghj7mn0wvhxcmmv9uq3xamnwvaz7tmsw4e8qmr9wpskwtn9wvhsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0qyg8wumn8ghj7mn0wd68ytnddakj7qghwaehxw309aex2mrp0yh8qunfd4skctnwv46z7qpqguvns4ld8k2f3sugel055w7eq8zeewq7mp6w2stpnt6j75z60z3swy7h05
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@ 0176967e:1e6f471e
2024-07-27 11:10:06
Workshop je zameraný pre všetkých, ktorí sa potýkajú s vysvetľovaním Bitcoinu svojej rodine, kamarátom, partnerom alebo kolegom. Pri námietkach z druhej strany väčšinou ideme do protiútoku a snažíme sa vytiahnuť tie najlepšie argumenty. Na tomto workshope vás naučím nový prístup k zvládaniu námietok a vyskúšate si ho aj v praxi. Know-how je aplikovateľné nie len na komunikáciu Bitcoinu ale aj pre zlepšenie vzťahov, pri výchove detí a celkovo pre lepší osobný život.
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@ 0176967e:1e6f471e
2024-07-26 17:45:08
Ak ste v Bitcoine už nejaký ten rok, možno máte pocit, že už všetkému rozumiete a že vás nič neprekvapí. Viete čo je to peňaženka, čo je to seed a čo adresa, možno dokonca aj čo je to sha256. Ste si istí? Táto prednáška sa vám to pokúsi vyvrátiť. 🙂
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@ 0176967e:1e6f471e
2024-07-26 12:15:35
Bojovať s rakovinou metabolickou metódou znamená použiť metabolizmus tela proti rakovine. Riadenie cukru a ketónov v krvi stravou a pohybom, časovanie rôznych typov cvičení, včasná kombinácia klasickej onko-liečby a hladovania. Ktoré vitamíny a suplementy prijímam a ktorým sa napríklad vyhýbam dajúc na rady mojej dietologičky z USA Miriam (ktorá sa špecializuje na rakovinu).
Hovori sa, že čo nemeriame, neriadime ... Ja som meral, veľa a dlho ... aj grafy budú ... aj sranda bude, hádam ... 😉
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@ 0176967e:1e6f471e
2024-07-26 09:50:53
Predikčné trhy predstavujú praktický spôsob, ako môžeme nahliadnuť do budúcnosti bez nutnosti spoliehať sa na tradičné, často nepresné metódy, ako je veštenie z kávových zrniek. V prezentácii sa ponoríme do histórie a vývoja predikčných trhov, a popíšeme aký vplyv mali a majú na dostupnosť a kvalitu informácií pre širokú verejnosť, a ako menia trh s týmito informáciami. Pozrieme sa aj na to, ako tieto trhy umožňujú obyčajným ľuďom prístup k spoľahlivým predpovediam a ako môžu prispieť k lepšiemu rozhodovaniu v rôznych oblastiach života.
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@ 0176967e:1e6f471e
2024-07-25 20:53:07
AI hype vnímame asi všetci okolo nás — už takmer každá appka ponúka nejakú “AI fíčuru”, AI startupy raisujú stovky miliónov a Európa ako obvykle pracuje na regulovaní a našej ochrane pred nebezpečím umelej inteligencie. Pomaly sa ale ukazuje “ovocie” spojenia umelej inteligencie a človeka, kedy mnohí ľudia reportujú signifikantné zvýšenie produktivity v práci ako aj kreatívnych aktivitách (aj napriek tomu, že mnohí hardcore kreatívci by každého pri spomenutí skratky “AI” najradšej upálili). V prvej polovici prednášky sa pozrieme na to, akými rôznymi spôsobmi nám vie byť AI nápomocná, či už v práci alebo osobnom živote.
Umelé neuróny nám už vyskakujú pomaly aj z ovsených vločiek, no to ako sa k nám dostávajú sa veľmi líši. Hlavne v tom, či ich poskytujú firmy v zatvorených alebo open-source modeloch. V druhej polovici prednášky sa pozrieme na boom okolo otvorených AI modelov a ako ich vieme využiť.
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@ 0176967e:1e6f471e
2024-07-25 20:38:11
Čo vznikne keď spojíš hru SNAKE zo starej Nokie 3310 a Bitcoin? - hra Chain Duel!
Jedna z najlepších implementácií funkcionality Lightning Networku a gamingu vo svete Bitcoinu.
Vyskúšať si ju môžete s kamošmi na tomto odkaze. Na stránke nájdeš aj základné pravidlá hry avšak odporúčame pravidlá pochopiť aj priamo hraním
Chain Duel si získava hromady fanúšikov po bitcoinových konferenciách po celom svete a práve na Lunarpunk festival ho prinesieme tiež.
Multiplayer 1v1 hra, kde nejde o náhodu, ale skill, vás dostane. Poďte si zmerať sily s ďalšími bitcoinermi a vyhrať okrem samotných satoshi rôzne iné ceny.
Príďte sa zúčastniť prvého oficiálneho Chain Duel turnaja na Slovensku!
Pre účasť na turnaji je potrebná registrácia dopredu.
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@ 0176967e:1e6f471e
2024-07-22 19:57:47
Co se nomádská rodina již 3 roky utíkající před kontrolou naučila o kontrole samotné? Co je to vlastně svoboda? Může koexistovat se strachem? S konfliktem? Zkusme na chvíli zapomenout na daně, policii a stát a pohlédnout na svobodu i mimo hranice společenských ideologií. Zkusme namísto hledání dalších odpovědí zjistit, zda se ještě někde neukrývají nové otázky. Možná to bude trochu ezo.
Karel provozuje již přes 3 roky se svou ženou, dvěmi dětmi a jedním psem minimalistický život v obytné dodávce. Na cestách spolu začali tvořit youtubový kanál "Karel od Martiny" o svobodě, nomádství, anarchii, rodičovství, drogách a dalších normálních věcech.
Nájdete ho aj na nostr.
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@ 0176967e:1e6f471e
2024-07-21 15:48:56
Lístky na festival Lunarpunku sú už v predaji na našom crowdfunding portáli. V predaji sú dva typy lístkov - štandardný vstup a špeciálny vstup spolu s workshopom oranžového leta.
Neváhajte a zabezpečte si lístok, čím skôr to urobíte, tým bude festival lepší.
Platiť môžete Bitcoinom - Lightningom aj on-chain. Vaša vstupenka je e-mail adresa (neposielame potvrdzujúce e-maily, ak platba prešla, ste in).
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@ 0176967e:1e6f471e
2024-07-21 11:28:18
Čo nám prinášajú exotické protokoly ako Nostr, Cashu alebo Reticulum? Šifrovanie, podpisovanie, peer to peer komunikáciu, nové spôsoby šírenia a odmeňovania obsahu.
Ukážeme si kúl appky, ako sa dajú jednotlivé siete prepájať a ako spolu súvisia.
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@ 5cb68b7a:b7cb67d5
2025-05-04 00:13:44
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🚀 Fast and Efficient Recovery
We understand that time is critical in crypto recovery. Our optimized systems ensure that you can regain access to your funds quickly, aiming for speed without sacrificing security. With a 90%+ success rate, you can trust us to fight against the clock on your behalf.
🔒 Privacy is Our Priority
Your confidentiality matters. Every recovery session is handled with the utmost care, ensuring all processes are encrypted and confidential. You can rest easy, knowing your sensitive information stays private.
💻 Advanced Technology
Our proprietary tools and brute-force optimization techniques allow for maximum efficiency in recovery. No matter how challenging your case may be, our technology is designed to give you the best chance at getting your crypto back.
Our Recovery Services Include: 📈
- Bitcoin Recovery: Lost access to your Bitcoin wallet? We help recover lost wallets, private keys, and passphrases.
- Transaction Recovery: Mistakes happen — whether it’s an incorrect wallet address or a lost password, let us handle the recovery.
- Cold Wallet Restoration: If your cold wallet is failing, we can safely extract your assets and migrate them into a secure, new wallet.
- Private Key Generation: Lost your private key? Don’t worry. Our experts can help you regain control using advanced methods — all while ensuring your privacy remains intact.
⚠️ What We Don’t Do
While we can handle many scenarios, there are some limitations. For example, we cannot recover funds stored in custodial wallets, or cases where there is a complete loss of four or more seed words without any partial info available. We’re transparent about what’s possible, so you know what to expect.
# Don’t Let Lost Crypto Hold You Back! ⏳Did you know that 3 to 3.4 million BTC — nearly 20% of the total supply — are estimated to be permanently lost? Don’t become part of that statistic! Whether it’s due to a forgotten password, sending funds to the wrong address, or damaged drives, we can help you navigate through it all.
🛡️ Real-Time Dust Attack Protection
Protecting your privacy goes beyond just recovery. Our services include dust attack protection, which keeps your activity anonymous and your funds secure. Our suite will shield your identity from unwanted tracking, ransomware, and phishing attempts.
🎉 Start Your Recovery Journey Today!
Are you ready to reclaim your lost crypto? Don’t wait until it’s too late!
👉 Request Wallet Recovery Help Now!
📞 Need Immediate Assistance? Connect with Us!
For real-time support or questions, reach out to our dedicated team on:
- ✉️ Telegram: Chat with Us on Telegram
- 💬 WhatsApp: Message Us on WhatsApp
Crypt Recver is your trusted partner in the world of cryptocurrency recovery. Let us turn your challenges into victories. Don’t hesitate — your crypto future starts now! 🚀✨
Act fast and secure your digital assets with Crypt Recver!
-
@ 0176967e:1e6f471e
2024-07-21 11:24:21
Podnikanie je jazyk s "crystal clear" pravidlami. Inštrumentalisti vidia podnikanie staticky, a toto videnie prenášajú na spoločnosť. Preto nás spoločnosť vníma často negatívne. Skutoční podnikatelia sú však "komunikátori".
Jozef Martiniak je zakladateľ AUSEKON - Institute of Austrian School of Economics
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@ 0176967e:1e6f471e
2024-07-21 11:20:40
Ako sa snažím praktizovať LunarPunk bez budovania opcionality "odchodom" do zahraničia. Nie každý je ochotný alebo schopný meniť "miesto", ako však v takom prípade minimalizovať interakciu so štátom? Nie návod, skôr postrehy z bežného života.
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@ 5df413d4:2add4f5b
2025-05-04 00:06:31
This opinion piece was first published in BTC Magazine on Feb 20, 2023
Just in case we needed a reminder, banks are showing us that they can and will gatekeep their customers’ money to prevent them from engaging with bitcoin. This should be a call to action for Bitcoiners or anyone else who wants to maintain control over their finances to move toward more proactive use of permissionless bitcoin tools and practices.
Since January of 2023, when Jamie Dimon decried Bitcoin as a “hyped-up fraud” and “a pet rock,” on CNBC, I've found myself unable to purchase bitcoin using my Chase debit card on Cash App. And I'm not the only one — if you have been following Bitcoin Twitter, you might have also seen Alana Joy tweet about her experience with the same. (Alana Joy Twitter account has since been deleted).
In both of our cases, it is the bank preventing bitcoin purchases and blocking inbound fiat transfers to Cash App for customers that it has associated with Bitcoin. All under the guise of “fraud protection,” of course.
No, it doesn’t make a whole lot of sense — Chase still allows ACH bitcoin purchases and fiat on Cash App can be used for investing in stocks, saving or using Cash App’s own debit card, not just bitcoin — but yes, it is happening. Also, no one seems to know exactly when this became Chase’s policy. The fraud representative I spoke with wasn’t sure and couldn’t point to any documentation, but reasoned that the rule has been in place since early last year. Yet murkier still, loose chatter can be found on Reddit about this issue going back to at least April 2021.
However, given that I and so many others were definitely buying bitcoin via Chase debit throughout 2021 and 2022, I’d wager that this policy, up to now, has only been exercised haphazardly, selectively, arbitrarily, even. Dark patterns abound, but for now, it seems like I just happen to be one of the unlucky ones…
That said, there is nothing preventing this type of policy from being enforced broadly and in earnest by one or many banks. If and as banks feel threatened by Bitcoin, we will surely see more of these kinds of opaque practices.
It’s Time To Get Proactive
Instead, we should expect it and prepare for it. So, rather than railing against banks, I want to use this as a learning experience to reflect on the importance of permissionless, non-KYC Bitcoining, and the practical actions we can take to advance the cause.
Bank with backups and remember local options. Banking is a service, not servitude. Treat it as such. Maintaining accounts at multiple banks may provide some limited fault tolerance against banks that take a hostile stance toward Bitcoin, assuming it does not become the industry norm. Further, smaller, local and regional banks may be more willing to work with Bitcoiner customers, as individual accounts can be far more meaningful to them than they are to larger national banks — though this certainly should not be taken for granted.
If you must use KYC’d Bitcoin services, do so thoughtfully. For Cash App (and services like it), consider first loading in fiat and making buys out of the app’s native cash balance instead of purchasing directly through a linked bank account/debit card where information is shared with the bank that allows it to flag the transaction for being related to bitcoin. Taking this small step may help to avoid gatekeeping and can provide some minor privacy, from the bank at least.
Get comfortable with non-KYC bitcoin exchanges. Just as many precoiners drag their feet before making their first bitcoin buys, so too do many Bitcoiners drag their feet in using permissionless channels to buy and sell bitcoin. Robosats, Bisq, Hodl Hodl— you can use the tools. For anyone just getting started, BTC Sessions has excellent video tutorial content on all three, which are linked.
If you don’t yet know how to use these services, it’s better to pick up this knowledge now through calm, self-directed learning rather than during the panic of an emergency or under pressure of more Bitcoin-hostile conditions later. And for those of us who already know, we can actively support these services. For instance, more of us taking action to maintain recurring orders on such platforms could significantly improve their volumes and liquidity, helping to bootstrap and accelerate their network effects.
Be flexible and creative with peer-to-peer payment methods. Cash App, Zelle, PayPal, Venmo, Apple Cash, Revolut, etc. — the services that most users seem to be transacting with on no-KYC exchanges — they would all become willing, if not eager and active agents of financial gatekeeping in any truly antagonistic, anti-privacy environment, even when used in a “peer-to-peer” fashion.
Always remember that there are other payment options — such as gift cards, the original digital-bearer items — that do not necessarily carry such concerns. Perhaps, an enterprising soul might even use Fold to earn bitcoin rewards on the backend for the gift cards used on the exchange…
Find your local Bitcoin community! In the steadily-advancing shadow war on all things permissionless, private, and peer-to-peer, this is our best defense. Don’t just wait until you need other Bitcoiners to get to know other Bitcoiners — to paraphrase Texas Slim, “Shake your local Bitcoiner’s hand.” Get to know people and never underestimate the power of simply asking around. There could be real, live Bitcoiners near you looking to sell some corn and happy to see it go to another HODLer rather than to a bunch of lettuce-handed fiat speculators on some faceless, centralized, Ponzi casino exchange. What’s more, let folks know your skills, talents and expertise — you might be surprised to find an interested market that pays in BTC!
In closing, I believe we should think of permissionless Bitcoining as an essential and necessary core competency, just like we do with Self-Custody. And we should push it with similar urgency and intensity. But as we do this, we should also remember that it is a spectrum and a progression and that there are no perfect solutions, only tradeoffs. Realization of the importance of non-KYC practices will not be instant or obvious to near-normie newcoiners, coin-curious fence-sitters or even many minted Bitcoiners. My own experience is certainly a testament to this.
As we promote the active practice of non-KYC Bitcoining, we can anchor to empathy, patience and humility — always being mindful of the tremendous amount of unlearning most have to go through to get there. So, even if someone doesn’t get it the first time, or the nth time, that they hear it from us, if it helps them get to it faster at all, then it’s well worth it.
~Moon
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@ 0176967e:1e6f471e
2024-07-20 08:28:00
Tento rok vás čaká workshop na tému "oranžové leto" s Jurajom Bednárom a Mariannou Sádeckou. Dozviete sa ako mení naše vnímanie skúsenosť s Bitcoinom, ako sa navigovať v dnešnom svete a odstrániť mentálnu hmlu spôsobenú fiat životom.
Na workshop je potrebný extra lístok (môžete si ho dokúpiť aj na mieste).
Pre viac informácií o oranžovom lete odporúčame pred workshopom vypočuťi si podcast na túto tému.
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@ 3bf0c63f:aefa459d
2024-06-13 15:40:18
Why relay hints are important
Recently Coracle has removed support for following relay hints in Nostr event references.
Supposedly Coracle is now relying only on public key hints and
kind:10002events to determine where to fetch events from a user. That is a catastrophic idea that destroys much of Nostr's flexibility for no gain at all.- Someone makes a post inside a community (either a NIP-29 community or a NIP-87 community) and others want to refer to that post in discussions in the external Nostr world of
kind:1s -- now that cannot work because the person who created the post doesn't have the relays specific to those communities in their outbox list; - There is a discussion happening in a niche relay, for example, a relay that can only be accessed by the participants of a conference for the duration of that conference -- since that relay is not in anyone's public outbox list, it's impossible for anyone outside of the conference to ever refer to these events;
- Some big public relays, say, relay.damus.io, decide to nuke their databases or periodically delete old events, a user keeps using that big relay as their outbox because it is fast and reliable, but chooses to archive their old events in a dedicated archival relay, say, cellar.nostr.wine, while prudently not including that in their outbox list because that would make no sense -- now it is impossible for anyone to refer to old notes from this user even though they are publicly accessible in cellar.nostr.wine;
- There are topical relays that curate content relating to niche (non-microblogging) topics, say, cooking recipes, and users choose to publish their recipes to these relays only -- but now they can't refer to these relays in the external Nostr world of
kind:1s because these topical relays are not in their outbox lists. - Suppose a user wants to maintain two different identities under the same keypair, say, one identity only talks about soccer in English, while the other only talks about art history in French, and the user very prudently keeps two different
kind:10002events in two different sets of "indexer" relays (or does it in some better way of announcing different relay sets) -- now one of this user's audiences cannot ever see notes created by him with their other persona, one half of the content of this user will be inacessible to the other half and vice-versa. - If for any reason a relay does not want to accept events of a certain kind a user may publish to other relays, and it would all work fine if the user referenced that externally-published event from a normal event, but now that externally-published event is not reachable because the external relay is not in the user's outbox list.
- If someone, say, Alex Jones, is hard-banned everywhere and cannot event broadcast
kind:10002events to any of the commonly used index relays, that person will now appear as banned in most clients: in an ideal world in which clients followednprofileand other relay hints Alex Jones could still live a normal Nostr life: he would print business cards with hisnprofileinstead of annpuband clients would immediately know from what relay to fetch his posts. When other users shared his posts or replied to it, they would include a relay hint to his personal relay and others would be able to see and then start following him on that relay directly -- now Alex Jones's events cannot be read by anyone that doesn't already know his relay.
- Someone makes a post inside a community (either a NIP-29 community or a NIP-87 community) and others want to refer to that post in discussions in the external Nostr world of
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@ 266815e0:6cd408a5
2024-04-24 23:02:21
NOTE: this is just a quick technical guide. sorry for the lack of details
Install NodeJS
Download it from the official website https://nodejs.org/en/download
Or use nvm https://github.com/nvm-sh/nvm?tab=readme-ov-file#install--update-script
bash wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash nvm install 20Clone example config.yml
bash wget https://raw.githubusercontent.com/hzrd149/blossom-server/master/config.example.yml -O config.ymlModify config.yml
```bash nano config.yml
or if your that type of person
vim config.yml ```
Run blossom-server
```bash npx blossom-server-ts
or install it locally and run using npm
npm install blossom-server-ts ./node_modules/.bin/blossom-server-ts ```
Now you can open http://localhost:3000 and see your blossom server
And if you set the
dashboard.enabledoption in theconfig.ymlyou can open http://localhost:3000/admin to see the admin dashboard -
@ 3bf0c63f:aefa459d
2024-01-15 11:15:06
Pequenos problemas que o Estado cria para a sociedade e que não são sempre lembrados
- **vale-transporte**: transferir o custo com o transporte do funcionário para um terceiro o estimula a morar longe de onde trabalha, já que morar perto é normalmente mais caro e a economia com transporte é inexistente. - **atestado médico**: o direito a faltar o trabalho com atestado médico cria a exigência desse atestado para todas as situações, substituindo o livre acordo entre patrão e empregado e sobrecarregando os médicos e postos de saúde com visitas desnecessárias de assalariados resfriados. - **prisões**: com dinheiro mal-administrado, burocracia e péssima alocação de recursos -- problemas que empresas privadas em competição (ou mesmo sem qualquer competição) saberiam resolver muito melhor -- o Estado fica sem presídios, com os poucos existentes entupidos, muito acima de sua alocação máxima, e com isto, segundo a bizarra corrente de responsabilidades que culpa o juiz que condenou o criminoso por sua morte na cadeia, juízes deixam de condenar à prisão os bandidos, soltando-os na rua. - **justiça**: entrar com processos é grátis e isto faz proliferar a atividade dos advogados que se dedicam a criar problemas judiciais onde não seria necessário e a entupir os tribunais, impedindo-os de fazer o que mais deveriam fazer. - **justiça**: como a justiça só obedece às leis e ignora acordos pessoais, escritos ou não, as pessoas não fazem acordos, recorrem sempre à justiça estatal, e entopem-na de assuntos que seriam muito melhor resolvidos entre vizinhos. - **leis civis**: as leis criadas pelos parlamentares ignoram os costumes da sociedade e são um incentivo a que as pessoas não respeitem nem criem normas sociais -- que seriam maneiras mais rápidas, baratas e satisfatórias de resolver problemas. - **leis de trãnsito**: quanto mais leis de trânsito, mais serviço de fiscalização são delegados aos policiais, que deixam de combater crimes por isto (afinal de contas, eles não querem de fato arriscar suas vidas combatendo o crime, a fiscalização é uma excelente desculpa para se esquivarem a esta responsabilidade). - **financiamento educacional**: é uma espécie de subsídio às faculdades privadas que faz com que se criem cursos e mais cursos que são cada vez menos recheados de algum conhecimento ou técnica útil e cada vez mais inúteis. - **leis de tombamento**: são um incentivo a que o dono de qualquer área ou construção "histórica" destrua todo e qualquer vestígio de história que houver nele antes que as autoridades descubram, o que poderia não acontecer se ele pudesse, por exemplo, usar, mostrar e se beneficiar da história daquele local sem correr o risco de perder, de fato, a sua propriedade. - **zoneamento urbano**: torna as cidades mais espalhadas, criando uma necessidade gigantesca de carros, ônibus e outros meios de transporte para as pessoas se locomoverem das zonas de moradia para as zonas de trabalho. - **zoneamento urbano**: faz com que as pessoas percam horas no trânsito todos os dias, o que é, além de um desperdício, um atentado contra a sua saúde, que estaria muito melhor servida numa caminhada diária entre a casa e o trabalho. - **zoneamento urbano**: torna ruas e as casas menos seguras criando zonas enormes, tanto de residências quanto de indústrias, onde não há movimento de gente alguma. - **escola obrigatória + currículo escolar nacional**: emburrece todas as crianças. - **leis contra trabalho infantil**: tira das crianças a oportunidade de aprender ofícios úteis e levar um dinheiro para ajudar a família. - **licitações**: como não existem os critérios do mercado para decidir qual é o melhor prestador de serviço, criam-se comissões de pessoas que vão decidir coisas. isto incentiva os prestadores de serviço que estão concorrendo na licitação a tentar comprar os membros dessas comissões. isto, fora a corrupção, gera problemas reais: __(i)__ a escolha dos serviços acaba sendo a pior possível, já que a empresa prestadora que vence está claramente mais dedicada a comprar comissões do que a fazer um bom trabalho (este problema afeta tantas áreas, desde a construção de estradas até a qualidade da merenda escolar, que é impossível listar aqui); __(ii)__ o processo corruptor acaba, no longo prazo, eliminando as empresas que prestavam e deixando para competir apenas as corruptas, e a qualidade tende a piorar progressivamente. - **cartéis**: o Estado em geral cria e depois fica refém de vários grupos de interesse. o caso dos taxistas contra o Uber é o que está na moda hoje (e o que mostra como os Estados se comportam da mesma forma no mundo todo). - **multas**: quando algum indivíduo ou empresa comete uma fraude financeira, ou causa algum dano material involuntário, as vítimas do caso são as pessoas que sofreram o dano ou perderam dinheiro, mas o Estado tem sempre leis que prevêem multas para os responsáveis. A justiça estatal é sempre muito rígida e rápida na aplicação dessas multas, mas relapsa e vaga no que diz respeito à indenização das vítimas. O que em geral acontece é que o Estado aplica uma enorme multa ao responsável pelo mal, retirando deste os recursos que dispunha para indenizar as vítimas, e se retira do caso, deixando estas desamparadas. - **desapropriação**: o Estado pode pegar qualquer propriedade de qualquer pessoa mediante uma indenização que é necessariamente inferior ao valor da propriedade para o seu presente dono (caso contrário ele a teria vendido voluntariamente). - **seguro-desemprego**: se há, por exemplo, um prazo mínimo de 1 ano para o sujeito ter direito a receber seguro-desemprego, isto o incentiva a planejar ficar apenas 1 ano em cada emprego (ano este que será sucedido por um período de desemprego remunerado), matando todas as possibilidades de aprendizado ou aquisição de experiência naquela empresa específica ou ascensão hierárquica. - **previdência**: a previdência social tem todos os defeitos de cálculo do mundo, e não importa muito ela ser uma forma horrível de poupar dinheiro, porque ela tem garantias bizarras de longevidade fornecidas pelo Estado, além de ser compulsória. Isso serve para criar no imaginário geral a idéia da __aposentadoria__, uma época mágica em que todos os dias serão finais de semana. A idéia da aposentadoria influencia o sujeito a não se preocupar em ter um emprego que faça sentido, mas sim em ter um trabalho qualquer, que o permita se aposentar. - **regulamentação impossível**: milhares de coisas são proibidas, há regulamentações sobre os aspectos mais mínimos de cada empreendimento ou construção ou espaço. se todas essas regulamentações fossem exigidas não haveria condições de produção e todos morreriam. portanto, elas não são exigidas. porém, o Estado, ou um agente individual imbuído do poder estatal pode, se desejar, exigi-las todas de um cidadão inimigo seu. qualquer pessoa pode viver a vida inteira sem cumprir nem 10% das regulamentações estatais, mas viverá também todo esse tempo com medo de se tornar um alvo de sua exigência, num estado de terror psicológico. - **perversão de critérios**: para muitas coisas sobre as quais a sociedade normalmente chegaria a um valor ou comportamento "razoável" espontaneamente, o Estado dita regras. estas regras muitas vezes não são obrigatórias, são mais "sugestões" ou limites, como o salário mínimo, ou as 44 horas semanais de trabalho. a sociedade, porém, passa a usar esses valores como se fossem o normal. são raras, por exemplo, as ofertas de emprego que fogem à regra das 44h semanais. - **inflação**: subir os preços é difícil e constrangedor para as empresas, pedir aumento de salário é difícil e constrangedor para o funcionário. a inflação força as pessoas a fazer isso, mas o aumento não é automático, como alguns economistas podem pensar (enquanto alguns outros ficam muito satisfeitos de que esse processo seja demorado e difícil). - **inflação**: a inflação destrói a capacidade das pessoas de julgar preços entre concorrentes usando a própria memória. - **inflação**: a inflação destrói os cálculos de lucro/prejuízo das empresas e prejudica enormemente as decisões empresariais que seriam baseadas neles. - **inflação**: a inflação redistribui a riqueza dos mais pobres e mais afastados do sistema financeiro para os mais ricos, os bancos e as megaempresas. - **inflação**: a inflação estimula o endividamento e o consumismo. - **lixo:** ao prover coleta e armazenamento de lixo "grátis para todos" o Estado incentiva a criação de lixo. se tivessem que pagar para que recolhessem o seu lixo, as pessoas (e conseqüentemente as empresas) se empenhariam mais em produzir coisas usando menos plástico, menos embalagens, menos sacolas. - **leis contra crimes financeiros:** ao criar legislação para dificultar acesso ao sistema financeiro por parte de criminosos a dificuldade e os custos para acesso a esse mesmo sistema pelas pessoas de bem cresce absurdamente, levando a um percentual enorme de gente incapaz de usá-lo, para detrimento de todos -- e no final das contas os grandes criminosos ainda conseguem burlar tudo. -
@ 3bf0c63f:aefa459d
2024-01-14 14:52:16
Drivechain
Understanding Drivechain requires a shift from the paradigm most bitcoiners are used to. It is not about "trustlessness" or "mathematical certainty", but game theory and incentives. (Well, Bitcoin in general is also that, but people prefer to ignore it and focus on some illusion of trustlessness provided by mathematics.)
Here we will describe the basic mechanism (simple) and incentives (complex) of "hashrate escrow" and how it enables a 2-way peg between the mainchain (Bitcoin) and various sidechains.
The full concept of "Drivechain" also involves blind merged mining (i.e., the sidechains mine themselves by publishing their block hashes to the mainchain without the miners having to run the sidechain software), but this is much easier to understand and can be accomplished either by the BIP-301 mechanism or by the Spacechains mechanism.
How does hashrate escrow work from the point of view of Bitcoin?
A new address type is created. Anything that goes in that is locked and can only be spent if all miners agree on the Withdrawal Transaction (
WT^) that will spend it for 6 months. There is one of these special addresses for each sidechain.To gather miners' agreement
bitcoindkeeps track of the "score" of all transactions that could possibly spend from that address. On every block mined, for each sidechain, the miner can use a portion of their coinbase to either increase the score of oneWT^by 1 while decreasing the score of all others by 1; or they can decrease the score of allWT^s by 1; or they can do nothing.Once a transaction has gotten a score high enough, it is published and funds are effectively transferred from the sidechain to the withdrawing users.
If a timeout of 6 months passes and the score doesn't meet the threshold, that
WT^is discarded.What does the above procedure mean?
It means that people can transfer coins from the mainchain to a sidechain by depositing to the special address. Then they can withdraw from the sidechain by making a special withdraw transaction in the sidechain.
The special transaction somehow freezes funds in the sidechain while a transaction that aggregates all withdrawals into a single mainchain
WT^, which is then submitted to the mainchain miners so they can start voting on it and finally after some months it is published.Now the crucial part: the validity of the
WT^is not verified by the Bitcoin mainchain rules, i.e., if Bob has requested a withdraw from the sidechain to his mainchain address, but someone publishes a wrongWT^that instead takes Bob's funds and sends them to Alice's main address there is no way the mainchain will know that. What determines the "validity" of theWT^is the miner vote score and only that. It is the job of miners to vote correctly -- and for that they may want to run the sidechain node in SPV mode so they can attest for the existence of a reference to theWT^transaction in the sidechain blockchain (which then ensures it is ok) or do these checks by some other means.What? 6 months to get my money back?
Yes. But no, in practice anyone who wants their money back will be able to use an atomic swap, submarine swap or other similar service to transfer funds from the sidechain to the mainchain and vice-versa. The long delayed withdraw costs would be incurred by few liquidity providers that would gain some small profit from it.
Why bother with this at all?
Drivechains solve many different problems:
It enables experimentation and new use cases for Bitcoin
Issued assets, fully private transactions, stateful blockchain contracts, turing-completeness, decentralized games, some "DeFi" aspects, prediction markets, futarchy, decentralized and yet meaningful human-readable names, big blocks with a ton of normal transactions on them, a chain optimized only for Lighting-style networks to be built on top of it.
These are some ideas that may have merit to them, but were never actually tried because they couldn't be tried with real Bitcoin or inferfacing with real bitcoins. They were either relegated to the shitcoin territory or to custodial solutions like Liquid or RSK that may have failed to gain network effect because of that.
It solves conflicts and infighting
Some people want fully private transactions in a UTXO model, others want "accounts" they can tie to their name and build reputation on top; some people want simple multisig solutions, others want complex code that reads a ton of variables; some people want to put all the transactions on a global chain in batches every 10 minutes, others want off-chain instant transactions backed by funds previously locked in channels; some want to spend, others want to just hold; some want to use blockchain technology to solve all the problems in the world, others just want to solve money.
With Drivechain-based sidechains all these groups can be happy simultaneously and don't fight. Meanwhile they will all be using the same money and contributing to each other's ecosystem even unwillingly, it's also easy and free for them to change their group affiliation later, which reduces cognitive dissonance.
It solves "scaling"
Multiple chains like the ones described above would certainly do a lot to accomodate many more transactions that the current Bitcoin chain can. One could have special Lightning Network chains, but even just big block chains or big-block-mimblewimble chains or whatnot could probably do a good job. Or even something less cool like 200 independent chains just like Bitcoin is today, no extra features (and you can call it "sharding"), just that would already multiply the current total capacity by 200.
Use your imagination.
It solves the blockchain security budget issue
The calculation is simple: you imagine what security budget is reasonable for each block in a world without block subsidy and divide that for the amount of bytes you can fit in a single block: that is the price to be paid in satoshis per byte. In reasonable estimative, the price necessary for every Bitcoin transaction goes to very large amounts, such that not only any day-to-day transaction has insanely prohibitive costs, but also Lightning channel opens and closes are impracticable.
So without a solution like Drivechain you'll be left with only one alternative: pushing Bitcoin usage to trusted services like Liquid and RSK or custodial Lightning wallets. With Drivechain, though, there could be thousands of transactions happening in sidechains and being all aggregated into a sidechain block that would then pay a very large fee to be published (via blind merged mining) to the mainchain. Bitcoin security guaranteed.
It keeps Bitcoin decentralized
Once we have sidechains to accomodate the normal transactions, the mainchain functionality can be reduced to be only a "hub" for the sidechains' comings and goings, and then the maximum block size for the mainchain can be reduced to, say, 100kb, which would make running a full node very very easy.
Can miners steal?
Yes. If a group of coordinated miners are able to secure the majority of the hashpower and keep their coordination for 6 months, they can publish a
WT^that takes the money from the sidechains and pays to themselves.Will miners steal?
No, because the incentives are such that they won't.
Although it may look at first that stealing is an obvious strategy for miners as it is free money, there are many costs involved:
- The cost of ceasing blind-merged mining returns -- as stealing will kill a sidechain, all the fees from it that miners would be expected to earn for the next years are gone;
- The cost of Bitcoin price going down: If a steal is successful that will mean Drivechains are not safe, therefore Bitcoin is less useful, and miner credibility will also be hurt, which are likely to cause the Bitcoin price to go down, which in turn may kill the miners' businesses and savings;
- The cost of coordination -- assuming miners are just normal businesses, they just want to do their work and get paid, but stealing from a Drivechain will require coordination with other miners to conduct an immoral act in a way that has many pitfalls and is likely to be broken over the months;
- The cost of miners leaving your mining pool: when we talked about "miners" above we were actually talking about mining pools operators, so they must also consider the risk of miners migrating from their mining pool to others as they begin the process of stealing;
- The cost of community goodwill -- when participating in a steal operation, a miner will suffer a ton of backlash from the community. Even if the attempt fails at the end, the fact that it was attempted will contribute to growing concerns over exaggerated miners power over the Bitcoin ecosystem, which may end up causing the community to agree on a hard-fork to change the mining algorithm in the future, or to do something to increase participation of more entities in the mining process (such as development or cheapment of new ASICs), which have a chance of decreasing the profits of current miners.
Another point to take in consideration is that one may be inclined to think a newly-created sidechain or a sidechain with relatively low usage may be more easily stolen from, since the blind merged mining returns from it (point 1 above) are going to be small -- but the fact is also that a sidechain with small usage will also have less money to be stolen from, and since the other costs besides 1 are less elastic at the end it will not be worth stealing from these too.
All of the above consideration are valid only if miners are stealing from good sidechains. If there is a sidechain that is doing things wrong, scamming people, not being used at all, or is full of bugs, for example, that will be perceived as a bad sidechain, and then miners can and will safely steal from it and kill it, which will be perceived as a good thing by everybody.
What do we do if miners steal?
Paul Sztorc has suggested in the past that a user-activated soft-fork could prevent miners from stealing, i.e., most Bitcoin users and nodes issue a rule similar to this one to invalidate the inclusion of a faulty
WT^and thus cause any miner that includes it in a block to be relegated to their own Bitcoin fork that other nodes won't accept.This suggestion has made people think Drivechain is a sidechain solution backed by user-actived soft-forks for safety, which is very far from the truth. Drivechains must not and will not rely on this kind of soft-fork, although they are possible, as the coordination costs are too high and no one should ever expect these things to happen.
If even with all the incentives against them (see above) miners do still steal from a good sidechain that will mean the failure of the Drivechain experiment. It will very likely also mean the failure of the Bitcoin experiment too, as it will be proven that miners can coordinate to act maliciously over a prolonged period of time regardless of economic and social incentives, meaning they are probably in it just for attacking Bitcoin, backed by nation-states or something else, and therefore no Bitcoin transaction in the mainchain is to be expected to be safe ever again.
Why use this and not a full-blown trustless and open sidechain technology?
Because it is impossible.
If you ever heard someone saying "just use a sidechain", "do this in a sidechain" or anything like that, be aware that these people are either talking about "federated" sidechains (i.e., funds are kept in custody by a group of entities) or they are talking about Drivechain, or they are disillusioned and think it is possible to do sidechains in any other manner.
No, I mean a trustless 2-way peg with correctness of the withdrawals verified by the Bitcoin protocol!
That is not possible unless Bitcoin verifies all transactions that happen in all the sidechains, which would be akin to drastically increasing the blocksize and expanding the Bitcoin rules in tons of ways, i.e., a terrible idea that no one wants.
What about the Blockstream sidechains whitepaper?
Yes, that was a way to do it. The Drivechain hashrate escrow is a conceptually simpler way to achieve the same thing with improved incentives, less junk in the chain, more safety.
Isn't the hashrate escrow a very complex soft-fork?
Yes, but it is much simpler than SegWit. And, unlike SegWit, it doesn't force anything on users, i.e., it isn't a mandatory blocksize increase.
Why should we expect miners to care enough to participate in the voting mechanism?
Because it's in their own self-interest to do it, and it costs very little. Today over half of the miners mine RSK. It's not blind merged mining, it's a very convoluted process that requires them to run a RSK full node. For the Drivechain sidechains, an SPV node would be enough, or maybe just getting data from a block explorer API, so much much simpler.
What if I still don't like Drivechain even after reading this?
That is the entire point! You don't have to like it or use it as long as you're fine with other people using it. The hashrate escrow special addresses will not impact you at all, validation cost is minimal, and you get the benefit of people who want to use Drivechain migrating to their own sidechains and freeing up space for you in the mainchain. See also the point above about infighting.
See also
-
@ 6fc114c7:8f4b1405
2025-05-03 22:06:36
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@ 52b4a076:e7fad8bd
2025-05-03 21:54:45
Introduction
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
nosdexv3, 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
nosdexdatabase. 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
Queuerwill 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
Workers 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
Queuerduring processing of queued jobs.Along with fixing these issues, I also implemented other optimizations, such as deprioritizing
WorkerDB accesses, and increasing the batch size.To fix the degraded
Queuerperformance, 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
OpenWithConnectionStringpartially 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
Workerits 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
Workers.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
Workeris 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.
-
@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
A Lightning penalty transaction
It was a cold day and I remembered that this
lightningdnode I was running on my local desktop to work on poncho actually had mainnet channels in it. Two channels, both private, bought on https://lnbig.com/ a while ago when I was trying to conduct an anonymous griefing attack on big nodes of the network just to prove it was possible (the attempts proved unsuccessful after some hours and I gave up).It is always painful to close channels because paying fees hurts me psychologically, and then it hurts even more to be left with a new small UTXO that will had to be spent to somewhere but that can barely pay for itself, but it also didn't make sense to just leave the channels there and risk forgetting them and losing them forever, so I had to do something.
One of the channels had 0 satoshis on my side, so that was easy. Mutually closed and I don't have to think anymore about it.
The other one had 10145 satoshis on my side -- out of a total of 100000 satoshis. Why can't I take my part all over over Lightning and leave the full channel UTXO to LNBIG? I wish I could do that, I don't want a small UTXO. I was not sure about it, but if the penalty reserve was 1% maybe I could take out abou 9000 satoshis and then close it with 1000 on my side? But then what would I do with this 1000 sat UTXO that would remain? Can't I donate it to miners or something?
I was in the middle of this thoughts stream when it came to me the idea of causing a penalty transaction to give those abundant 1000 sat to Mr. LNBIG as a donation for his excellent services to the network and the cause of Bitcoin, and for having supported the development of https://sbw.app/ and the hosted channels protocol.
Unfortunately
lightningddoesn't have a commandtriggerpenaltytransactionortrytostealusingoldstate, so what I did was:First I stopped
lightningdthen copied the database to elsewhere:cp ~/.lightningd/bitcoin/lightningd.sqlite3 ~/.lightning/bitcoin/lightningd.sqlite3.bakthen I restartedlightningdand fighted against the way-too-aggressive MPP splitting algorithm thepaycommand uses to pay invoices, but finally managed to pull about 9000 satoshis to my Z Bot that lives on the terrible (but still infinitely better than Twitter DMs) "webk" flavor of the Telegram web application and which is linked to my against-bitcoin-ethos-country-censoring ZEBEDEE Wallet. The operation wasn't smooth but it didn't take more than 10 invoices andpaycommands.
With the money out and safe elsewhere, I stopped the node again, moved the database back with a reckless
mv ~/.lightning/bitcoin/lightningd.sqlite3.bak ~/.lightningd/bitcoin/lightningd.sqlite3and restarted it, but to prevent mylightningdfrom being super naïve and telling LNBIG that it had an old state (I don't know if this would happen) which would cause LNBIG to close the channel in a boring way, I used the--offlineflag which apparently causes the node to not do any external connections.Finally I checked my balance using
lightning-cli listfundsand there it was, again, the 10145 satoshis I had at the start! A fantastic money creation trick, comparable to the ones central banks execute daily.
I was ready to close the channel now, but the
lightning-cli closecommand had an option for specifying how many seconds I would wait for a mutual close before proceeding to a unilateral close. There is noforceclosecommand like Éclair hasor anything like that. I was afraid that even if I gave LNBIG one second it would try to do boring things, so I paused to consider how could I just broadcast the commitment transaction manually, looked inside the SQLite database and thechannelstable with its millions of columns with cryptic names in the unbearable.schemaoutput, imagined thatlightningdmaybe wouldn't know how to proceed to take the money from theto-localoutput if I managed to broadcast it manually (and in the unlikely event that LNBIG wouldn't broadcast the penalty transaction), so I decided to just accept the risk and calllightning-cli close 706327x1588x0 1But it went well. The
--offlineflag apparently really works, as it just considered LNBIG to be offline and 1 second later I got the desired result.
My happiness was complete when I saw the commitment transaction with my output for 10145 satoshis published on the central database of Bitcoin, blockstream.info.
Then I went to eat something and it seems LNBIG wasn't offline or sleeping, he was certainly looking at all the logs from his 274 nodes in a big room full of monitors, very alert and eating an apple while drinking coffee, ready to take action, for when I came back, minutes later, I could see it, again on the single source of truth for the Bitcoin blockchain, the Blockstream explorer. I've refreshed the page and there it was, a small blue link right inside the little box that showed my
to-localoutput, a notice saying it had been spent -- not by mylightningdsince that would have to wait 9000 blocks, but by the same transaction that spent the other output, from which I could be very sure it was it, the glorious, mighty, unforgiving penalty transaction, splitting the earth, showing itself in all its power, and taking my 10145 satoshis to their rightful owner.
-
@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
nostr - Notes and Other Stuff Transmitted by Relays
The simplest open protocol that is able to create a censorship-resistant global "social" network once and for all.
It doesn't rely on any trusted central server, hence it is resilient; it is based on cryptographic keys and signatures, so it is tamperproof; it does not rely on P2P techniques, therefore it works.
Very short summary of how it works, if you don't plan to read anything else:
Everybody runs a client. It can be a native client, a web client, etc. To publish something, you write a post, sign it with your key and send it to multiple relays (servers hosted by someone else, or yourself). To get updates from other people, you ask multiple relays if they know anything about these other people. Anyone can run a relay. A relay is very simple and dumb. It does nothing besides accepting posts from some people and forwarding to others. Relays don't have to be trusted. Signatures are verified on the client side.
This is needed because other solutions are broken:
The problem with Twitter
- Twitter has ads;
- Twitter uses bizarre techniques to keep you addicted;
- Twitter doesn't show an actual historical feed from people you follow;
- Twitter bans people;
- Twitter shadowbans people.
- Twitter has a lot of spam.
The problem with Mastodon and similar programs
- User identities are attached to domain names controlled by third-parties;
- Server owners can ban you, just like Twitter; Server owners can also block other servers;
- Migration between servers is an afterthought and can only be accomplished if servers cooperate. It doesn't work in an adversarial environment (all followers are lost);
- There are no clear incentives to run servers, therefore they tend to be run by enthusiasts and people who want to have their name attached to a cool domain. Then, users are subject to the despotism of a single person, which is often worse than that of a big company like Twitter, and they can't migrate out;
- Since servers tend to be run amateurishly, they are often abandoned after a while — which is effectively the same as banning everybody;
- It doesn't make sense to have a ton of servers if updates from every server will have to be painfully pushed (and saved!) to a ton of other servers. This point is exacerbated by the fact that servers tend to exist in huge numbers, therefore more data has to be passed to more places more often;
- For the specific example of video sharing, ActivityPub enthusiasts realized it would be completely impossible to transmit video from server to server the way text notes are, so they decided to keep the video hosted only from the single instance where it was posted to, which is similar to the Nostr approach.
The problem with SSB (Secure Scuttlebutt)
- It doesn't have many problems. I think it's great. In fact, I was going to use it as a basis for this, but
- its protocol is too complicated because it wasn't thought about being an open protocol at all. It was just written in JavaScript in probably a quick way to solve a specific problem and grew from that, therefore it has weird and unnecessary quirks like signing a JSON string which must strictly follow the rules of ECMA-262 6th Edition;
- It insists on having a chain of updates from a single user, which feels unnecessary to me and something that adds bloat and rigidity to the thing — each server/user needs to store all the chain of posts to be sure the new one is valid. Why? (Maybe they have a good reason);
- It is not as simple as Nostr, as it was primarily made for P2P syncing, with "pubs" being an afterthought;
- Still, it may be worth considering using SSB instead of this custom protocol and just adapting it to the client-relay server model, because reusing a standard is always better than trying to get people in a new one.
The problem with other solutions that require everybody to run their own server
- They require everybody to run their own server;
- Sometimes people can still be censored in these because domain names can be censored.
How does Nostr work?
- There are two components: clients and relays. Each user runs a client. Anyone can run a relay.
- Every user is identified by a public key. Every post is signed. Every client validates these signatures.
- Clients fetch data from relays of their choice and publish data to other relays of their choice. A relay doesn't talk to another relay, only directly to users.
- For example, to "follow" someone a user just instructs their client to query the relays it knows for posts from that public key.
- On startup, a client queries data from all relays it knows for all users it follows (for example, all updates from the last day), then displays that data to the user chronologically.
- A "post" can contain any kind of structured data, but the most used ones are going to find their way into the standard so all clients and relays can handle them seamlessly.
How does it solve the problems the networks above can't?
- Users getting banned and servers being closed
- A relay can block a user from publishing anything there, but that has no effect on them as they can still publish to other relays. Since users are identified by a public key, they don't lose their identities and their follower base when they get banned.
- Instead of requiring users to manually type new relay addresses (although this should also be supported), whenever someone you're following posts a server recommendation, the client should automatically add that to the list of relays it will query.
- If someone is using a relay to publish their data but wants to migrate to another one, they can publish a server recommendation to that previous relay and go;
- If someone gets banned from many relays such that they can't get their server recommendations broadcasted, they may still let some close friends know through other means with which relay they are publishing now. Then, these close friends can publish server recommendations to that new server, and slowly, the old follower base of the banned user will begin finding their posts again from the new relay.
-
All of the above is valid too for when a relay ceases its operations.
-
Censorship-resistance
- Each user can publish their updates to any number of relays.
-
A relay can charge a fee (the negotiation of that fee is outside of the protocol for now) from users to publish there, which ensures censorship-resistance (there will always be some Russian server willing to take your money in exchange for serving your posts).
-
Spam
-
If spam is a concern for a relay, it can require payment for publication or some other form of authentication, such as an email address or phone, and associate these internally with a pubkey that then gets to publish to that relay — or other anti-spam techniques, like hashcash or captchas. If a relay is being used as a spam vector, it can easily be unlisted by clients, which can continue to fetch updates from other relays.
-
Data storage
- For the network to stay healthy, there is no need for hundreds of active relays. In fact, it can work just fine with just a handful, given the fact that new relays can be created and spread through the network easily in case the existing relays start misbehaving. Therefore, the amount of data storage required, in general, is relatively less than Mastodon or similar software.
-
Or considering a different outcome: one in which there exist hundreds of niche relays run by amateurs, each relaying updates from a small group of users. The architecture scales just as well: data is sent from users to a single server, and from that server directly to the users who will consume that. It doesn't have to be stored by anyone else. In this situation, it is not a big burden for any single server to process updates from others, and having amateur servers is not a problem.
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Video and other heavy content
-
It's easy for a relay to reject large content, or to charge for accepting and hosting large content. When information and incentives are clear, it's easy for the market forces to solve the problem.
-
Techniques to trick the user
- Each client can decide how to best show posts to users, so there is always the option of just consuming what you want in the manner you want — from using an AI to decide the order of the updates you'll see to just reading them in chronological order.
FAQ
- This is very simple. Why hasn't anyone done it before?
I don't know, but I imagine it has to do with the fact that people making social networks are either companies wanting to make money or P2P activists who want to make a thing completely without servers. They both fail to see the specific mix of both worlds that Nostr uses.
- How do I find people to follow?
First, you must know them and get their public key somehow, either by asking or by seeing it referenced somewhere. Once you're inside a Nostr social network you'll be able to see them interacting with other people and then you can also start following and interacting with these others.
- How do I find relays? What happens if I'm not connected to the same relays someone else is?
You won't be able to communicate with that person. But there are hints on events that can be used so that your client software (or you, manually) knows how to connect to the other person's relay and interact with them. There are other ideas on how to solve this too in the future but we can't ever promise perfect reachability, no protocol can.
- Can I know how many people are following me?
No, but you can get some estimates if relays cooperate in an extra-protocol way.
- What incentive is there for people to run relays?
The question is misleading. It assumes that relays are free dumb pipes that exist such that people can move data around through them. In this case yes, the incentives would not exist. This in fact could be said of DHT nodes in all other p2p network stacks: what incentive is there for people to run DHT nodes?
- Nostr enables you to move between server relays or use multiple relays but if these relays are just on AWS or Azure what’s the difference?
There are literally thousands of VPS providers scattered all around the globe today, there is not only AWS or Azure. AWS or Azure are exactly the providers used by single centralized service providers that need a lot of scale, and even then not just these two. For smaller relay servers any VPS will do the job very well.
-
@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
-
@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
The unit test bubble
Look at the following piece of Go code:
func NewQuery(query []rune) *Query { q := &Query{ query: &[]rune{}, complete: &[]rune{}, } _ = q.Set(query) return q } func NewQueryWithString(query string) *Query { return NewQuery([]rune(query)) }It is taken from a GitHub project with over 2000 stars.
Now take a look at these unit tests for the same package:
``` func TestNewQuery(t *testing.T) { var assert = assert.New(t)
v := []rune(".name") q := NewQuery(v) assert.Equal(*q.query, []rune(".name")) assert.Equal(*q.complete, []rune(""))}
func TestNewQueryWithString(t *testing.T) { var assert = assert.New(t)
q := NewQueryWithString(".name") assert.Equal(*q.query, []rune(".name")) assert.Equal(*q.complete, []rune(""))} ```
Now be honest: what are these for? Is this part of an attack to eat all GitHub storage and head them to bankruptcy?
Also
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
A estrutura lógica do livro didático
Todos os livros didáticos e cursos expõem seus conteúdos a partir de uma organização lógica prévia, um esquema de todo o conteúdo que julgam relevante, tudo muito organizadinho em tópicos e subtópicos segundo a ordem lógica que mais se aproxima da ordem natural das coisas. Imagine um sumário de um manual ou livro didático.
A minha experiência é a de que esse método serve muito bem para ninguém entender nada. A organização lógica perfeita de um campo de conhecimento é o resultado final de um estudo, não o seu início. As pessoas que escrevem esses manuais e dão esses cursos, mesmo quando sabem do que estão falando (um acontecimento aparentemente raro), o fazem a partir do seu próprio ponto de vista, atingido após uma vida de dedicação ao assunto (ou então copiando outros manuais e livros didáticos, o que eu chutaria que é o método mais comum).
Para o neófito, a melhor maneira de entender algo é através de imersões em micro-tópicos, sem muita noção da posição daquele tópico na hierarquia geral da ciência.
- Revista Educativa, um exemplo de como não ensinar nada às crianças.
- Zettelkasten, a ordem surgindo do caos, ao invés de temas se encaixando numa ordem preexistentes.
-
@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Boardthreads
This was a very badly done service for turning a Trello list into a helpdesk UI.
Surprisingly, it had more paying users than Websites For Trello, which I was working on simultaneously and dedicating much more time to it.
The Neo4j database I used for this was a very poor choice, it was probably the cause of all the bugs.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Ryan Fugger's Ripple
Before XRP, the shitcoin, bought it, "Ripple" was used by Ryan Fugger as the name for his project to create a peer-to-peer network of trust channels for money transfer. The basic idea is that Alice trusts Bob personally, Bob trusts Carol personally and Carol trusts David personally, therefore it is possible for Alice to send a payment to David by creating debt across A--B, B--C and C--D. Later either payments in the opposite direction (not necessarily from David to Alice, as the network can have trust relationships to multiple other peers in a complex graph) would maybe clear that debt (or not), but ultimately Bob would expect Alice to pay him in kind to settle the debt, Carol would expect Bob to pay her in kind and David would expect Carol to pay him in kind.
The system above works quite well inside a centralized trusted platform like Fugger's own Ripplepay website (even when it was supposed to be just proof-of-concept, it ended up being actually used to facilitate payments across small communities), but that cannot scale as participants would all rely on it and ultimately have to blindly trust that platform.[^trust-ripplepay]
If a truly peer-to-peer system could be designed, it would have a chance of scaling across the entire society and the ability to enable truly open payments over the internet, an unreachable goal unless you use either a credit card provider, which is bureaucratic, unsafe, expensive, taxable, not private at all and cumbersome -- or Bitcoin, which is awesome and excel in all aspects except scalability for day-to-day transactions.
The protocol can take many forms, but essentially it goes like this: 1. A finds a route (A--B--C--D) between her and D somehow; 2. A "prepares" a payment to B, tells B to do the same with C and so on (to prepare means to give B a conditional IOU that will be valid as long as the full payment completes); 3. When the chain of prepared messages reaches D, D somehow "commits" the payment. 4. After the commit, A now really does owe B and so on, and D really knows it has been effectively paid by A (in the form of debt from C) so it can ship goods to A.
The step 3 is the point in which the problem of the decentralized commit arises.
Fugger and the original Ripple community failed to solve the problem of the decentralized commit, which is required for such a system to be deployed. Not to blame them, as they've recognized the problem (unlike other people that had the same idea later[^clueless-people]) and documented many sub-optimal solutions[^decentralized-commit].
No one thinks about it in these terms, but the Bitcoin Lightning Network is itself a Ripple-like system with an embedded solution to the problem of the decentralized commit.
[^trust-ripplepay]: You may ask why is it bad to trust a central point if all this is already based on trust relationships between peers. If the platform goes malicious peers can jump out and resolve things on their own! But that's not so simple, it's not obvious when the platform will be malicious or not, it's not clear what to do if the platform deletes data or change history. Ultimately it cannot scale because even if it was very trustworthy you wouldn't want the entire global economy resting upon Ryan Fugger's webserver, nor does he want that. [^clueless-people]: See, for example, LedgerLoops, Offst and Settle. [^decentralized-commit]: The old Ripple wiki lists the "registry commit method" (which requires trust in a third-party), the "bare commit method" (which is not an atomic commit) and the "blockchain commit method" (which publishes transactions to the Bitcoin blockchain and so does not scale.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Drivechain comparison with Ethereum
Ethereum and other "smart contract platforms" capable of running turing-complete code and "developer-friendly" mindset and community have been running for years and they were able to produce a very low number of potentially useful "contracts".
What are these contracts, actually? (Considering Ethereum, but others are similar:) they are sidechains that run inside the Ethereum blockchain (and thus their verification and data storage are forced upon all Ethereum nodes). Users can peg-in to a contract by depositing money on it and peg-out by making a contract operation that sends money to a normal Ethereum address.
Now be generous and imagine these platforms are able to produce 3 really cool, useful ideas (out of many thousands of attempts): Bitcoin can copy these, turn them into 3 different sidechains, each running fixed, specific, optimized code. Bitcoin users can now opt to use these platforms by transferring coins to it – all that without damaging the nodes or the consensus protocol that has been running for years, and without forcing anyone to be aware of these chains.
The process of turning a useful idea into a sidechain doesn't come spontaneously, and can't be done by a single company (like often happens in Ethereum-land), it must be acknowledge by a rough consensus in the Bitcoin community that that specific sidechain with that specific design is a desirable thing, and ultimately approved by miners, as they're the ones that are going to be in charge of that.
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@ 044da344:073a8a0e
2025-05-03 19:02:02
Mein Thema kommt heute aus dem Kalender und hat gleich noch zu einem Video geführt. Internationaler Tag der Pressefreiheit – wie jedes Jahr am 3. Mai. Das Publikum liebt Ranglisten. Shanghai für die Hochschulen, der Best Country Report für die Lebensqualität und Freedom House für die Freiheit in der Welt. Es gibt Aufsteiger und Absteiger und Jahr für Jahr eine Meldung, über die sich trefflich diskutieren lässt – vor allem in Europa und Nordamerika, wo die Sieger wohnen. Man muss die Statistik dafür nicht einmal fälschen, sondern einfach nur das messen, was man selbst am besten kann, und alles weglassen, was das Bild trüben könnte. Bei den „Reportern ohne Grenzen“ sorgen dafür die Geldgeber und Fragen, die sich zum Beispiel in Afrika oder in Südostasien gar nicht stellen. Ergebnis: Die Medien sind bei uns ziemlich frei, auch wenn Leser dieser Seite wissen, dass das so nicht stimmt.
Okay: Deutschland hat es wieder nicht ganz geschafft in den grünen Bereich – dorthin, wo die skandinavischen Länder stehen, die Niederlande oder Irland. Deutschland gehört auch nicht mehr zu den Top Ten wie noch 2024, aber es war knapp. Platz elf. Zum Glück nennen die „Reporter ohne Grenzen“ die Schuldigen. Zensur? Gott bewahre. Das Ausblenden, Diffamieren, Verleumden von allen, die laut Fragen stellen zum Regierungskurs? Doch nicht bei uns. Dieses Land würde auch in Sachen Pressefreiheit längst Weltmeister sein, wenn da nicht ein paar Unverbesserliche wären, die auf Journalisten ungefähr so reagieren wie ein Stier auf ein rotes Tuch. Glaubt man den „Reportern ohne Grenzen“, dann sind Demos in Deutschland ein gefährlicher Ort für alle, die dort mit Kamera, Mikro oder Presseschild auftauchen. 75 „physische Angriffe“ 2024, davon die meisten in Berlin und beim Thema Nahost, wobei es zwei Bild-Reporter allein auf 29 Einträge gebracht haben (Iman Sefati und seine Fotografin Yalcin Askin).
Vorweg: Jede Attacke ist eine zu viel. Gleich danach kommt aber der Verdacht, dass das ganz gut passt, weil die „Reporter ohne Grenzen“ so eine „zunehmende Pressefeindlichkeit“ beklagen können und „ein verengtes Verständnis von Pressefreiheit“. Zitat: „Denn viele Bürger*innen sehen Berichterstattende, die nicht ihrem eigenen politischen Spektrum entstammen, mittlerweile als Gegner an.“
Sorry für die Genderei. Ich habe das so gelassen, weil es vermutlich bereits damit anfängt. Mit einem „verengten Verständnis“ auch und gerade bei der Sprache. Lassen Sie uns das in drei Schritten angehen. Nummer eins: Wir schauen auf den Kellner, der da jedes Jahr zum Welttag der Pressefreiheit eine Quittung ausstellt. Nummer zwei: Wir zählen nach. Und Nummer drei: Wir schlagen all das drauf, was in der Rechnung fehlt.
Die „Reporter ohne Grenzen“ sitzen in Paris und sind damit auf den ersten Blick weniger verdächtig als der US-Thinktank „Freedom House“, der bis 2017 jedes Jahr eine Konkurrenzliste veröffentlicht hat und einen Großteil seiner Gelder und Sicherheiten direkt oder indirekt aus dem Staatshaushalt in Washington bezieht. Der Volksmund weiß, was das Brot aus den Liedern macht, die draußen gesungen werden. Bei den „Reportern ohne Grenzen“ kommt das Geld aus ganz ähnlich Töpfen – 2023 zu drei Vierteln von der EU, von staatlichen Behörden und von den großen Stiftungen. Ford, Luminate (Geldbörse von Ebay-Gründer Pierre Omidyar, der auch bei den Faktencheckern mitspielt), Open Society Foundations. Der deutsche Steuerzahler ist über ein Ministerium (Entwicklungshilfe) und den Berliner Senat jeweils mit einer Viertelmillion Euro dabei. Dass die Niederlande und Schweden mitspielen, erklärt sich bei einem Blick auf die Ergebnisse (in diesem Jahr: Platz 3 und 4). Besser kann man nicht investieren in Werbung für das eigene Land.
Diese Platzierungen sind gewissermaßen ein Selbstläufer, weil all das in die Wertung kommt, was der Westen gut findet – die formale Trennung von Regierung und Redaktionen zum Beispiel. Andersherum: Abzüge gibt es überall da, wo der Staat, Parteien oder Politiker selbst Medien betreiben. In Uganda zum Beispiel, Platz 143, gibt es kaum Werbetreibende, die ein TV-Programm finanzieren könnten, und nur ein kleines Publikum, das sich ein Zeitungsabo leisten kann und will. Sonntags drängen sich die Menschen dort vor kleinen Hütten mit großen Bildschirmen, um ihren Lieblingen aus der Premier League zuzujubeln und vielleicht einen Wettgewinn einzustreichen, der sie über die Woche trägt. Auf dem Land gehören die Radiostationen in aller Regel lokalen Größen. Kirche, Politik, Wirtschaft. Ich habe dort Interviews geführt und gelernt: Über „Pressefreiheit“ und Informationsqualität sagt das alles wenig. Die Menschen in Uganda wissen sehr genau, wer jeweils zu ihnen spricht, und machen sich ihren Reim darauf. Ein anderer Kriterienkatalog könnte daraus ein Qualitätsmerkmal machen. Während Besitz- und damit Machtverhältnisse im Westen hinter Nebelkerzen versteckt werden (Objektivität, Unabhängigkeit, Neutralität), herrscht in Uganda Transparenz.
Neben dem „politischen Kontext“ haben die „Reporter ohne Grenzen“ vier weitere Blöcke in ihrem Punktekatalog. Gesetze, Wirtschaft, Gesellschaft, Sicherheit. Die Fragen decken das ab, was bei uns Standard ist. Dürfen sich Journalisten gewerkschaftlich organisieren? Werden sie bestochen? Können Nachrichtenmedien finanziell überleben? Werden Karikaturen toleriert? Ich will hier nicht zu sehr auf Uganda herumreiten. Nur: Der Beruf wird dort völlig anders gesehen als hier. Es gibt nur eine kleine vierstellige Zahl an Journalisten. 1000, vielleicht 1500. Die meisten sind jung, weil die Redaktionen als Sprungbrett gesehen werden zu einem wirklich lukrativen Job in der Verwaltung, in den Unternehmen, in der Politik. Wer zu einer Pressekonferenz fährt, erwartet dort einen Umschlag. Offiziell: Anreisepauschale. Inoffiziell der Preis für einen wohlwollenden Bericht. Die „Reporter ohne Grenzen“ strafen Uganda folglich ab. Angriffe auf Journalisten (oft von Sicherheitsleuten), wenig Schutz vor Gericht, wenig Achtung vor dem Beruf. Platz 143 halt.
Und Deutschland? Die Demos wie gesagt und Leute, die die Dinge einfach falsch sehen. Ein „verengtes Verständnis von Pressefreiheit“. Außerdem sagen die „Reporter ohne Grenzen“: Wir tun zu wenig gegen „Hassrede und Desinformation“. Der Koalitionsvertrag von Schwarz-Rot ist offenbar nicht mehr eingeflossen in diesen Bericht. Dort heißt es:
Gezielte Einflussnahme auf Wahlen sowie inzwischen alltägliche Desinformation und Fake News sind ernste Bedrohungen für unsere Demokratie, ihre Institutionen und den gesellschaftlichen Zusammenhalt. Die bewusste Verbreitung falscher Tatsachenbehauptungen ist durch die Meinungsfreiheit nicht gedeckt. Deshalb muss die staatsferne Medienaufsicht unter Wahrung der Meinungsfreiheit auf der Basis klarer gesetzlicher Vorgaben gegen Informationsmanipulation sowie Hass und Hetze vorgehen können.
Schon vorab hatten die „Reporter ohne Grenzen“ von „einem stark verengten Meinungskorridor bei der Arbeit zu Israel und Palästina“ berichtet. Selbst alte Hasen haben in dieser Befragung gesagt, dass sie noch nie einen solchen Druck erlebt hätten – vor allem dann, wenn es um die israelische Kriegsführung geht, um die Folgen für die Bevölkerung in Gaza und um das, was in Deutschland zu diesem Thema passiert. Ich verlinke hier die Münchner Rede von Andreas Zumach, gehalten im November 2018, wo all das schon Thema war.
Und sonst? Corona, Ukraine, Klima und damit Energiewende? Kontokündigungen? Gerichtsurteile, die selbst es bis in die Weltpresse schafften (im Bild: The Economist vom 16. April 2025) und dort Unbehagen auslösten? Eine Cancel Culture, die Sprecher aus der Öffentlichkeit verbannt, die sich gegen die herrschende Ideologie und den Regierungskurs stellen?
Alles kein Thema – jedenfalls nicht für die Experten, die gefragt werden (Journalisten, Forscher, Akademiker, Menschenrechtsspezialisten; mithin Menschen, die in irgendeiner Form von Staat oder Konzernen abhängen). Die konzernfreien oder neuen Medien senden für die „Reporter ohne Grenzen“ offenbar jenseits von Gut und Böse. Und dass die Regierung Fernsehen, Radio und Presse nicht unbedingt selbst betreiben muss wie in Uganda, um ihre Sicht der Dinge flächendeckend zu verbreiten, scheint dort außerhalb jeder Vorstellungskraft zu liegen. Anders ist nicht zu erklären, dass im Bericht zwar ein paar öffentlich-rechtliche Skandälchen auftauchen und der Stellenabbau bei der Südwestdeutschen Medienholding, aber nichts zu lesen ist über die Aufrüstung der Medienapparate in Ministerien, Parteien, Unternehmen und über den Druck, der davon auf Journalisten ausgeht, die zwar keinen Umschlag bekommen, wenn sie ordentlich berichten, aber sicher ein wenig Exklusives, wahrscheinlich eine Beförderung und vielleicht sogar ein Ticket für den Sprung auf die andere, besser entlohnte Seite. Bis es soweit ist, melden sie einfach, dass mit der Medienfreiheit alles okay ist, wenn es da nicht diese Chaoten auf der Straße geben würde und ein paar Unverbesserliche mit einem „verengten Verständnis von Pressefreiheit“. Sonst müsste man sich möglicherweise aufmachen und nach den Ursachen für den Unmut fragen.
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@ d0ea1c34:9c84dc37
2025-05-03 17:53:05
Markdown Rendering Test Document
Basic Text Formatting
This is a paragraph with bold text, italic text, and bold italic text. You can also use underscores for bold or single underscores for italics.
This is a paragraph with some
inline codeusing backticks.Lists
Unordered Lists
- Item 1
- Item 2
- Nested item 2.1
- Nested item 2.2
- Item 3
Ordered Lists
- First item
- Second item
- Nested item 2.1
- Nested item 2.2
- Third item
Links and Images
Blockquotes
This is a blockquote.
It can span multiple lines.
And can be nested.
Code Blocks
```python def hello_world(): print("Hello, world!")
This is a Python code block with syntax highlighting
hello_world() ```
javascript // JavaScript code block function helloWorld() { console.log("Hello, world!"); }Tables
| Header 1 | Header 2 | Header 3 | |----------|----------|----------| | Cell 1 | Cell 2 | Cell 3 | | Cell 4 | Cell 5 | Cell 6 | | Cell 7 | Cell 8 | Cell 9 |
Horizontal Rules
Task Lists
- [x] Completed task
- [ ] Incomplete task
- [x] Another completed task
Math (if supported)
Inline math: $E = mc^2$
Block math:
$$ \frac{d}{dx}e^x = e^x $$
Footnotes
Here's a sentence with a footnote reference[^1].
[^1]: This is the footnote content.
Definition Lists
Term 1 : Definition 1
Term 2 : Definition 2a : Definition 2b
Special Characters & Escaping
*This text is surrounded by asterisks but not italicized*
Advanced Formatting
Click to expand
This is hidden content that appears when expanded.Emoji (if supported)
:smile: :heart: :thumbsup:
Final Notes
This document demonstrates various Markdown formatting features. Compatibility may vary across different Markdown renderers and platforms.
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@ 2e8970de:63345c7a
2025-05-03 17:31:07
The figure in this article illustrates exactly how most biology papers are secretly p-hacked. A large number of hypotheses is explored, and only the ones that form a coherent story are reported.
This is actually the main reason behind the replication crisis in biology IMO. (source)
https://www.nature.com/articles/s41587-025-02635-7
originally posted at https://stacker.news/items/970464
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@ fc7085c3:0b32a4cb
2025-05-03 16:17:10
- ~~finish writing some experimental specs and store on hidden repo for later~~
- ~~fix bugs on in-house js web components framework (with react-like hooks)~~
- ~~add signal/reactive hooks to framework~~ (thx to nootropics)
- (ongoing) slooowly migrate kind:1 app from Qwik to above framework
- test feasibility of new app - codename: ZULULA. cool? flawed?
- if cool, finish ZULULA basic features
- nread.me: add nostr documentation (mpa for this part cause seo)
- nread.me: add nip crud (save on relay)
- nread.me: add nip curation (rating and labeling)
- nread.me: filter by curator / rating / labeling
- nread.me: seed curator (fiatjaf) adds other curators
- revamp kind:1 app login
- add basic engagement features then halt kind:1 app dev
- start simplified messenger app to test custom chat spec
- ...don't know what's next yet
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@ 6ad3e2a3:c90b7740
2025-05-03 15:33:07
You are wearing a helmet, but it's been on your head so long you no longer notice it.
The helmet interfaces with your mind via thought-emotion. It influences what you think about and how you feel.
You could remove the helmet at any time. But the thought-emotions keep you distracted, fearful and attached.
Occasionally you remember you are wearing it. Moments of clarity and detachment. You see the way your experience is colored by it. You know it is biased, untrue to reality. You seriously contemplate removing it.
But the moment passes.
Later, you remember contemplating your helmet’s removal, but you wonder what you will gain from it, whether it’s worth doing.
You are no longer having a moment of clarity, just a memory of the question that arose from it, but colored now by thought-emotions.
You decide even if you wanted to remove it, you would put it back on before long. After all, you have never kept it off before, why would you suddenly live without this interface now? The interface is what you know.
Maybe one day, when you are in a more secure place, when your ducks are more in a row, you will remove it. Not now, not in the midst of all this chaos, so many things to do, so much on your plate. You will leave it on for now. You will deal with this later.
But one day too late it dawns on you it is always ever now, and later means never. You have lived your entire life at the behest of the interface when all you had to do was remove it.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Personagens de jogos e símbolos
A sensação de "ser" um personagem em um jogo ou uma brincadeira talvez seja o mais próximo que eu tenha conseguido chegar do entendimento de um símbolo religioso.
A hóstia consagrada é, segundo a religião, o corpo de Cristo, mas nossa mente moderna só consegue concebê-la como sendo uma representação do corpo de Cristo. Da mesma forma outras culturas e outras religiões têm símbolos parecidos, inclusive nos quais o próprio participante do ritual faz o papel de um deus ou de qualquer coisa parecida.
"Faz o papel" é de novo a interpretação da mente moderna. O sujeito ali é a coisa, mas ele ao mesmo tempo que é também sabe que não é, que continua sendo ele mesmo.
Nos jogos de videogame e brincadeiras infantis em que se encarna um personagem o jogador é o personagem. não se diz, entre os jogadores, que alguém está "encenando", mas que ele é e pronto. nem há outra denominação ou outro verbo. No máximo "encarnando", mas já aí já é vocabulário jornalístico feito para facilitar a compreensão de quem está de fora do jogo.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
bolt12 problems
- clients can't programatically build new offers by changing a path or query params (services like zbd.gg or lnurl-pay.me won't work)
- impossible to use in a load-balanced custodian way -- since offers would have to be pregenerated and tied to a specific lightning node.
- the existence of fiat currency fields makes it so wallets have to fetch exchange rates from somewhere on the internet (or offer a bad user experience), using HTTP which hurts user privacy.
- the vendor field is misleading, can be phished very easily, not as safe as a domain name.
- onion messages are an improvement over fake HTLC-based payments as a way of transmitting data, for sure. but we must decide if they are (i) suitable for transmitting all kinds of data over the internet, a replacement for tor; or (ii) not something that will scale well or on which we can count on for the future. if there was proper incentivization for data transmission it could end up being (i), the holy grail of p2p communication over the internet, but that is a very hard problem to solve and not guaranteed to yield the desired scalability results. since not even hints of attempting to solve that are being made, it's safer to conclude it is (ii).
bolt12 limitations
- not flexible enough. there are some interesting fields defined in the spec, but who gets to add more fields later if necessary? very unclear.
- services can't return any actionable data to the users who paid for something. it's unclear how business can be conducted without an extra communication channel.
bolt12 illusions
- recurring payments is not really solved, it is just a spec that defines intervals. the actual implementation must still be done by each wallet and service. the recurring payment cannot be enforced, the wallet must still initiate the payment. even if the wallet is evil and is willing to initiate a payment without the user knowing it still needs to have funds, channels, be online, connected etc., so it's not as if the services could rely on the payments being delivered in time.
- people seem to think it will enable pushing payments to mobile wallets, which it does not and cannot.
- there is a confusion of contexts: it looks like offers are superior to lnurl-pay, for example, because they don't require domain names. domain names, though, are common and well-established among internet services and stores, because these services have websites, so this is not really an issue. it is an issue, though, for people that want to receive payments in their homes. for these, indeed, bolt12 offers a superior solution -- but at the same time bolt12 seems to be selling itself as a tool for merchants and service providers when it includes and highlights features as recurring payments and refunds.
- the privacy gains for the receiver that are promoted as being part of bolt12 in fact come from a separate proposal, blinded paths, which should work for all normal lightning payments and indeed are a very nice solution. they are (or at least were, and should be) independent from the bolt12 proposal. a separate proposal, which can be (and already is being) used right now, also improves privacy for the receiver very much anway, it's called trampoline routing.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
WelcomeBot
The first bot ever created for Trello.
It invited to a public board automatically anyone who commented on a card he was added to.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Sol e Terra
A Terra não gira em torno do Sol. Tudo depende do ponto de referência e não existe um ponto de referência absoluto. Só é melhor dizer que a Terra gira em torno do Sol porque há outros planetas fazendo movimentos análogos e aí fica mais fácil para todo mundo entender os movimentos tomando o Sol como ponto de referência.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
A list of things artificial intelligence is not doing
If AI is so good why can't it:
- write good glue code that wraps a documented HTTP API?
- make good translations using available books and respective published translations?
- extract meaningful and relevant numbers from news articles?
- write mathematical models that fit perfectly to available data better than any human?
- play videogames without cheating (i.e. simulating human vision, attention and click speed)?
- turn pure HTML pages into pretty designs by generating CSS
- predict the weather
- calculate building foundations
- determine stock values of companies from publicly available numbers
- smartly and automatically test software to uncover bugs before releases
- predict sports matches from the ball and the players' movement on the screen
- continuously improve niche/local search indexes based on user input and and reaction to results
- control traffic lights
- predict sports matches from news articles, and teams and players' history
This was posted first on Twitter.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Rede Relâmpago
Ao se referir à Lightning Network do O que é Bitcoin?, nós, brasileiros e portugueses, devemos usar o termo "Relâmpago" ou "Rede Relâmpago". "Relâmpago" é uma palavra bonita e apropriada, e fácil de pronunciar por todos os nossos compatriotas. Chega de anglicismos desnecessários.
Exemplo de uma conversa hipotética no Brasil usando esta nomenclatura:
– Posso pagar com Relâmpago? – Opa, claro! Vou gerar um boleto aqui pra você.Repare que é bem mais natural e fácil do que a outra alternativa:
– Posso pagar com láitenim? – Leite ninho? -
@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
The Lightning Network solves the problem of the decentralized commit
Before reading this, see Ripple and the problem of the decentralized commit.
The Bitcoin Lightning Network can be thought as a system similar to Ripple: there are conditional IOUs (HTLCs) that are sent in "prepare"-like messages across a route, and a secret
pthat must travel from the final receiver backwards through the route until it reaches the initial sender and possession of that secret serves to prove the payment as well as to make the IOU hold true.The difference is that if one of the parties don't send the "acknowledge" in time, the other has a trusted third-party with its own clock (that is the clock that is valid for everybody involved) to complain immediately at the timeout: the Bitcoin blockchain. If C has
pand B isn't acknowleding it, C tells the Bitcoin blockchain and it will force the transfer of the amount from B to C.Differences (or 1 upside and 3 downside)
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The Lightning Network differs from a "pure" Ripple network in that when we send a "prepare" message on the Lightning Network, unlike on a pure Ripple network we're not just promising we will owe something -- instead we are putting the money on the table already for the other to get if we are not responsive.
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The feature above removes the trust element from the equation. We can now have relationships with people we don't trust, as the Bitcoin blockchain will serve as an automated escrow for our conditional payments and no one will be harmed. Therefore it is much easier to build networks and route payments if you don't always require trust relationships.
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However it introduces the cost of the capital. A ton of capital must be made available in channels and locked in HTLCs so payments can be routed. This leads to potential issues like the ones described in https://twitter.com/joostjgr/status/1308414364911841281.
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Another issue that comes with the necessity of using the Bitcoin blockchain as an arbiter is that it may cost a lot in fees -- much more than the value of the payment that is being disputed -- to enforce it on the blockchain.[^closing-channels-for-nothing]
Solutions
Because the downsides listed above are so real and problematic -- and much more so when attacks from malicious peers are taken into account --, some have argued that the Lightning Network must rely on at least some trust between peers, which partly negate the benefit.
The introduction of purely trust-backend channels is the next step in the reasoning: if we are trusting already, why not make channels that don't touch the blockchain and don't require peers to commit large amounts of capital?
The reason is, again, the ambiguity that comes from the problem of the decentralized commit. Therefore hosted channels can be good when trust is required only from one side, like in the final hops of payments, but they cannot work in the middle of routes without eroding trust relationships between peers (however they can be useful if employed as channels between two nodes ran by the same person).
The next solution is a revamped pure Ripple network, one that solves the problem of the decentralized commit in a different way.
[^closing-channels-for-nothing]: That is even true when, for reasons of the payment being so small that it doesn't even deserve an actual HTLC that can be enforced on the chain (as per the protocol), even then the channel between the two nodes will be closed, only to make it very clear that there was a disagreement. Leaving it online would be harmful as one of the peers could repeat the attack again and again. This is a proof that ambiguity, in case of the pure Ripple network, is a very important issue.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Liquidificador
A fragilidade da comunicação humana fica clara quando alguém liga o liquidificador.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Músicas novas e conhecidas
Quando for ouvir música de fundo, escolha músicas bem conhecidas. Para ouvir músicas novas, reserve um tempo e ouça-as com total atenção.
Uma coisa similar é dirigir por caminhos conhecidos versus dirigir em lugares novos. a primeira opção te permite fazer coisas enquanto dirige "de fundo", a segunda requer atenção total.
Com músicas, tenho errado constantemente em achar que posso conhecer músicas novas ao mesmo tempo em que me dedico a outras tarefas.
See also:
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Buying versus donating
Currently (and probably it has always been the case) in the Bitcoin community there is some push towards donations as some sort of business model, or in general just a general love for the idea of donations, and I think that is very misguided.
Two examples of the push for the primacy of donations
For example, there is a general wantness of people to have some sort of "static QR code" or "static Lightning invoice" that people can put on their Twitter profiles to receive donations (sometimes they say "payments" instead of "donations" but to me there is no such a thing as a payment without a good or service being given in exchange, so I'm saying "donations") and that is a hard problem to solve considering the fact that most Lightning wallets are running on phones.
Another example is the "Podcasting 2.0" initiative that tries to integrate podcast players with Lightning wallets so they can send donations to podcast hosts that are running Lightning nodes. Their proponents call it "value for value" (or "value4value", "v4v") and if you ask they will say value4value is a "model" in which the listener gives out in satoshis to the podcast host the same amount of "value" he is getting from listening to that content.
The value4value concept makes it almost explicit the problems I see with this big emphasis on donations the Bitcoin community is making in general. In essence, the idea that the listener is capable of measuring the value it gets from the podcast then converting it into a monetary amount and then donating that is completely wrong and even nonsensical.
Why value4value is not sound
Basic (Austrian) economics teaches us that all value is ordinal, not cardinal -- i.e., it can't be measured or assigned a number to. One can only know that at some instant they prefer x over y, they cannot say x has a value of 10 and y has a value of 9. Because of that, it's a nonsense quest to try determine how much value one is getting from a podcast.
Basic (Austrian) economics also teaches us that exchanges happen when there are differences in the subjective valuations of goods, i.e., Alice can give x to Bob in exchange for y if Alice prefers y over x and Bob prefers x over y at that point. Because of that (and disregarding the previous paragraph), it's futile to expect that the podcast listener will donate exactly the amount he is getting from the podcast in "value".
Because of the two points above, it should also be clear that it is impossible to convert "value" in podcast content form into "value" in satoshis form, but I won't try to explain why that is because this is not an economics textbook.
What actually happens is that whether it's in the value4value context or not, donations are always a somewhat random and subjective amount, if they happen. If I like some content that someone is publishing for free, my decision on if and how much I will donate is never dictated by some nonsense calculation, but by calculation that is governed almost entirely by feeling and animal spirits (but one that also considers how much money I can spare, how much I like that person and how much I perceive they need).
When I go to a normal shop to buy a bottle of milk I look at the bottle of milk and I read its price, and there is one simple decision I have to make: is this bottle of milk worth more than the amount of money that's specified in the price tag? It's a single decision with only two answers: yes or no.
While when I see a free form on some free "creator" page asking me to type how much I will donate I have to decide if I will donate, when I will donate, how much I will donate, if I want this donation to be done every month or how will that work going forward? Will I keep consuming the content produced by this person? Will they keep producing? Maybe I'll just listen for free now and do this later as I'm busy, but then will I forget? Maybe I have just donated a lot to someone else and do not have much more money to spare, but now I feel guilty that the other person got all my donation money and this one didn't get anything but I can't go back and ask the other to return the money I just donated -- and so on and so forth.
Conclusions
Although the paragraphs above are confusing and do not follow a very logical presentation pattern, I hope you got from them why I think donations are much more complicated than purchases, and that repeating the "value for value" mantra doesn't help at all.
Considering that, what I wanted to say is that bitcoiners should give more attention to the other model, in which people produce goods and services and sell them. And that model can be applied successfully to "content creators", podcasters etc in many ways that are probably (I don't have any data backing my claims) better than the donation model.
Other possible monetization possibilities
For example, I've noticed that many blogs and podcasts with interesting content start to release exclusive episodes as they get big enough. These exclusive episodes are available only for "supporters". This is effectively selling access to the episodes. There is also the "crowdwall" model in which multiple people pay so that some content gets released for free.
We can count even the model in which a donation is not just a blank donation, but gives the donor the right to write something on the screen or something like that -- these are actually not just donations, but purchases of these rights.
Professional videogame streamers have come up with some other interesting ideas. For example, they crowdfund the creation of special content ("if enough people pay I will dress like a rabbit") or they sell the right to participate in the stream somehow (for example, by playing a game with the streamer in some special day).
In these models, the static QR code with which so many people dream doesn't make much sense (if you're selling a specific episode or if a payment is specific to one identifiable person, you need different QR codes or more metadata to be attached to each payment by the payer).
Addendum
I think people like the donation model very much because they only see the big and super famous people that receive donations. A very small set of people have so many followers that they can live with just donations, even though donations are very inefficient and they could earn more and even deliver better content if they were using some other model.
I imagine that a creator with a high number of followers will get a lot of people that do not donate anything, a lot that will donate a little -- probably less than they would if they were paying -- and eventually a little number of people that will donate way more than they would if they were buying. This last group is probably what makes it worthwhile to work on this donations model for these creators.
The takeaway is that the donations model is not a panacea and is not very good either.
Related:
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
A Causa
o Princípios de Economia Política de Menger é o único livro que enfatiza a CAUSA o tempo todo. os cientistas todos parecem não saber, ou se esquecer sempre, que as coisas têm causa, e que o conhecimento verdadeiro é o conhecimento da causa das coisas.
a causa é uma categoria metafísica muito superior a qualquer correlação ou resultado de teste de hipótese, ela não pode ser descoberta por nenhum artifício econométrico ou reduzida à simples antecedência temporal estatística. a causa dos fenômenos não pode ser provada cientificamente, mas pode ser conhecida.
o livro de Menger conta para o leitor as causas de vários fenômenos econômicos e as interliga de forma que o mundo caótico da economia parece adquirir uma ordem no momento em que você lê. é uma sensação mágica e indescritível.
quando eu te o recomendei, queria é te imbuir com o espírito da busca pela causa das coisas. depois de ler aquilo, você está apto a perceber continuidade causal nos fenômenos mais complexos da economia atual, enxergar as causas entre toda a ação governamental e as suas várias consequências na vida humana. eu faço isso todos os dias e é a melhor sensação do mundo quando o caos das notícias do caderno de Economia do jornal -- que para o próprio jornalista que as escreveu não têm nenhum sentido (tanto é que ele escreve tudo errado) -- se incluem num sistema ordenado de causas e consequências.
provavelmente eu sempre erro em alguns ou vários pontos, mas ainda assim é maravilhoso. ou então é mais maravilhoso ainda quando eu descubro o erro e reinsiro o acerto naquela racionalização bela da ordem do mundo econômico que é a ordem de Deus.
em scrap para T.P.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
ijq
An interactive REPL for
jqwith smart helpers (for example, it automatically assigns each line of input to a variable so you can reference it later, it also always referenced the previous line automatically).See also
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Método científico
o método científico não pode ser aplicado senão numa meia dúzia de casos, e no entanto ei-nos aqui, pensando nele para tudo.
"formule hipóteses e teste-as independentemente", "obtenha uma quantidade de dados estatisticamente significante", teste, colete dados, mensure.
não é que de repente todo mundo resolveu calcular desvios-padrão, mas sim que é comum, para as pessoas mais cultas, nível Freakonomics, acharem que têm que testar e coletar dados, e nunca jamais confiar na sua "intuição" ou, pior, num raciocínio que pode parecer certo, mas na verdade é enormemente enganador.
sim, é verdade que raciocínios com explicações aparentemente sensatas nos são apresentados todos os dias -- para um exemplo fácil é só imaginar um comentarista de jornal, ou até uma matéria inocente de jornal, aliás, melhor pensar num comentarista da GloboNews --, e sim, é verdade que a maioria dessas explicações é falsa.
o que está errado é achar que só o que vale é testar hipóteses. você não pode testar a explicação aparentemente sensata que o taxista te fornece sobre a crise brasileira, deve então anotá-la para testar depois? mantê-la para sempre no cabedal das teorias ainda por testar?
e a explicação das redinhas que economizam água quando instaladas na torneira? essa dá pra testar, então você vai comprar um relógio de água e deixar a torneira ligada lá 5 horas com a redinha, depois 5 horas sem a redinha? obviamente não vai funcionar se você abrir o mesmo tanto, você vai precisar de um critério melhor: a satisfação da pessoa que está lavando as mãos com o resultado final versus a quantidade de água gasta. daí você precisaria de muitas pessoas, mas satisfação é uma coisa imensurável, nem adianta tentar fazer entrevistas antes e depois com as pessoas. o certo então, é o quê? procurar um estudo científico publicado numa revista de qualidade (porque tem aquelas revistas que aceitam estudos gerados por computador, então é melhor tomar cuidado) que fala sobre redinhas? como saber se a redinha é a mesma que você comprou? e agora que você já comprou, o resultado do experimento importa? (claro: pode ser que a redinha faça gastar mais água, você nunca saberá até que faça o experimento).
por que não, ao invés de condenar todos os raciocínios como enganadores e mandar que as pessoas façam experimentos científicos, ensinar a fazer raciocínios certos?
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Processos Antifrágeis
Há esse conceito, criado pelo genial Nassim Nicholas Taleb, que diz respeito a processos nos quais a curva de retorno em relação a uma variável aleatória é convexa, ou seja, o retorno tende a ser maior quanto mais aleatoriedade for adicionada ao processo.
Disso aí, o próprio Taleb tira uma conclusão que resolve a questão da pesquisa científica propositada contra a sorte, sobre quais levam a melhores resultados práticos e invenções. Escreve ele:
A história da sorte versus conhecimento é a seguinte: Ironicamente, temos imensamente mais evidência de resultados (descobertas úteis) ligados à sorte do que de resultados vindos da prática teleológica (de telos, “objetivo”), exceto na física — mesmo depois de descontarmos o sensacionalismo. Em alguns campos opacos e não-lineares, como a medicina ou a engenharia, as exceções teleológicas são a minoria, assim como são um pequeno número de remédios projetados. Isto nos deixa numa contradição de que chegamos até aqui graças ao puro acaso não-direcionado, mas ao mesmo tempo criamos programas de pesquisa que miram num progresso com direção definida, baseado em narrativas sobre o passado. E, o que é pior, estamos totalmente conscientes desta inconsistência.
Por outro lado, pura sorte não poderia produzir melhorias sempre. Processos de tentativa e erro (que são os que produzem as descobertas “por sorte”) têm um elemento erro, e erros, diz Taleb, causam explosões de avião, quedas de edifícios e perda de conhecimento.
A resposta, portanto, está na antifragilidade: as áreas onde a sorte vence a teleologia são as áreas onde estão em jogo sistemas complexos, onde os nexos causais são desconhecidos ou obscuros — e são as áreas onde a curva de retornos é convexa.
Vejamos a mais sombria de todas, a culinária, que depende inteiramente da heurística da tentativa e erro, já que ainda não nos foi possível projetar um prato direto de equações químicas ou descobrir, por engenharia reversa, gostos a partir de tabelas nutricionais. Pega-se o hummus, adiciona-se um ingrediente, digamos, uma pimenta, prova-se para ver se há uma melhora no gosto e guarda-se a receita, se o gosto for bom, ou descarta-se-á. Imprescindivelmente temos a opção, e não a obrigação, de guardar o resultado, o que nos deixa reter a parte superior da curva e nos impede de sermos lesados pelos retornos adversos.
A conclusão geral é que, para obter os melhores resultados na invenção de tecnologias, deve-se usar a experimentação sem exageros e cálculos quando se identificar uma área antifrágil, e usar a pesquisa rígida e cheia de provas matemáticas (ou o equivalente) quando a área for frágil.
A inovação capitalista
Um processo antifrágil importantíssimo deste mundo é a inovação capitalista (dói-me usar este termo já tão mal-gasto e mal-definido por aí). Não falo, como alguns, da invenção de novas tecnologias, mas, como outros, da invenção de novas formas de usar as coisas (qualquer coisa) para melhorar a vida de alguém, de alguma forma — e aqui incluem-se pequenas adaptações de tecnologias antigas que dão origem a novas tecnologias não muito diferentes das antigas, e incluem-se também o oferecimento de algum serviço, trabalho ou produto já existente, mas de uma nova forma, possivelmente melhor para seu provável consumidor. Este tipo de inovação é, segundo me parece, o poder mais subestimado dos mercados livres, é irreplicável em laboratórios de pesquisa tecnológica (só pode surgir mesmo na vida real, da cabeça de quem está envolvido com o problema real que a inovação soluciona), e é o que gerou idéias como o restaurante self-service, a terceirização dos serviços de construção civil ou o Google.
Esse tipo de inovação (ao contrário do sentido de inovação ligado a pesquisas caríssimas em universidades ou megaempresas, identificada pela famigerada sigla P&D) é antifrágil porque não custa muito ao indivíduo, não requer investimentos gigantescos ou qualquer coisa assim, porque é normalmente apenas uma adaptação do que ele próprio já faz.
Para a sociedade, não representa custo algum: o serviço novo é oferecido paralelamente ao serviço antigo, seus consumidores potenciais podem escolher o que mais lhes agrada, e rejeitar o outro. Se a nova solução não for satisfatória os mecanismos automáticos do mercado (o prejuízo simples) encarregam-se automaticamente de remover aquela novidade — e, automaticamente, o indivíduo que a criou pode se voltar ao seu processo antigo, ou a uma nova invenção.
Ao mesmo tempo em que cometer um erro numa tentativa de inovação é barato e não atrapalha ninguém, um acerto pode ter conseqüências que melhoram enormemente a vida de muita gente. O restaurante self-service, por exemplo, provavelmente teve sua implementação tentada por restaurantes de serviço à la carte várias vezes, em vários formatos diferentes, sem muito prejuízo para o restaurante, que podia continuar com seu serviço à la carte (no Brasil, senão o inventor dessa modalidade de restaurante ao menos um dos seus grandes expoentes, estas tentativas ocorreram durante a década de 80). Mas, quando enfim deu certo, promoveu melhoras enormes na qualidade de vida de milhares de pessoas — que podem pagar mais barato e comer apenas o que querem e quanto querem, dentro de uma gama maior de opções, o que permite que trabalhadores de todos os tipos comam melhor todos os dias, fiquem mais felizes e gastem menos.
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@ 90c656ff:9383fd4e
2025-05-03 11:52:14
In recent years, Bitcoin has often been compared to gold, earning the nickname “digital gold.” This comparison arises because both forms of value share key characteristics, such as scarcity, durability, and global acceptance. However, Bitcoin also represents a technological innovation that redefines the concept of money and investment, standing out as a modern and efficient alternative to physical gold.
One of the main reasons Bitcoin is compared to gold is its programmed scarcity. While gold is a naturally limited resource whose supply depends on mining, Bitcoin has a maximum cap of 21 million units, defined in its code. This cap protects Bitcoin from inflation, unlike traditional currencies that can be created without limit by central banks.
This scarcity gives Bitcoin lasting value, similar to gold, as the limited supply helps preserve purchasing power over time. As demand for Bitcoin grows, its reduced availability reinforces its role as a store of value.
Another feature that brings Bitcoin closer to gold is durability. While gold is resistant to corrosion and can be stored for centuries, Bitcoin is a digital asset protected by advanced cryptography and stored on the blockchain. An immutable and decentralized ledger.
Moreover, Bitcoin is far easier to transport than gold. Moving physical gold involves high costs and security risks, making transport particularly difficult for international transactions. Bitcoin, on the other hand, can be sent digitally anywhere in the world in minutes, with low fees and no intermediaries. This technological advantage makes Bitcoin more effective in a globalized and digital world.
Security is another trait that Bitcoin and gold share. Gold is difficult to counterfeit, making it a reliable store of value. Similarly, Bitcoin uses cryptographic protocols that ensure secure transactions and protect against fraud.
In addition, all Bitcoin transactions are recorded on the blockchain, offering a level of transparency that physical gold does not provide. Anyone can review transactions on the network, increasing trust and traceability.
Historically, gold has been used as a hedge against inflation and economic crises. During times of instability, investors turn to gold as a way to preserve their wealth. Bitcoin is emerging as a digital alternative with the same purpose.
In countries with high inflation or political instability, Bitcoin has been used as a safeguard against the devaluation of local currencies. Its decentralized nature prevents governments from directly confiscating or controlling the asset, providing greater financial freedom to users.
Despite its similarities with gold, Bitcoin still faces challenges. Its volatility is much higher, which can cause short-term uncertainty. However, many experts argue that this volatility is typical of new assets and tends to decrease over time as adoption grows and the market matures.
Another challenge is regulation. While gold is globally recognized as a financial asset, Bitcoin still faces resistance from governments and financial institutions, which seek ways to control and regulate it.
In summary, Bitcoin - often called "digital gold" - offers a new form of value that combines the best characteristics of gold with the efficiency and innovation of digital technology. Its programmed scarcity, cryptographic security, portability, and resistance to censorship make it a viable alternative for preserving wealth and conducting transactions in the modern world.
Despite its volatility, Bitcoin is establishing itself as both a store of value and a hedge against economic crises. As such, it represents not just an evolution of the financial system but also a symbol of the shift toward a decentralized and global digital economy.
Thank you very much for reading this far. I hope everything is well with you, and sending a big hug from your favorite Bitcoiner maximalist from Madeira. Long live freedom!
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Revista Educativa
Uma revista que traz resumos de grandes descobertas ciêntíficas e explica sua utilidade e relevância, explica os problemas e os "desafios" da sociedade moderna, faz propaganda de reciclagem e outras coisas supostamente boas ao meio-ambiente, e uma seção: "Quero ser cientista para... ajudar o mundo? Descobrir uma coisa muito boa? Escrever uma revista como esta?".
Que grande bobagem.
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@ 90c656ff:9383fd4e
2025-05-03 11:39:03
The emergence of Bitcoin brought a new perspective to the concept of money, challenging the conventional financial system based on fiat currencies. While fiat currencies like the real, dollar, and euro are widely used and recognized as means of exchange, Bitcoin represents a digital innovation that promotes decentralization and financial autonomy. Although both serve basic functions such as a medium of exchange and store of value, their main differences lie in how they are issued, managed, and transacted.
One of the key distinctions between Bitcoin and fiat currencies is the way they are issued and administered. Fiat currencies are issued by central banks, which have the power to regulate the amount in circulation. This model allows for the implementation of monetary policies, such as increasing the money supply to stimulate the economy or decreasing it to control inflation. However, this power can also result in currency devaluation if money is issued in excess.
Bitcoin, on the other hand, has a completely decentralized issuance system. It is created through a process called mining, in which computers solve complex mathematical problems to validate transactions on the network. Additionally, the total supply of bitcoins is limited to 21 million units, making it a deflationary asset—its scarcity can potentially increase its value over time. This limitation contrasts sharply with the unlimited nature of fiat money printing.
Fiat currencies are centralized, meaning their issuance and control are decided by governmental authorities. This also means that transactions involving these currencies go through intermediaries like banks, which can impose fees and limits, and are subject to regulations and audits.
Bitcoin, by contrast, is decentralized. It operates on a peer-to-peer network where transactions are verified by participants called miners and recorded in a public ledger known as the blockchain. This decentralization eliminates the need for intermediaries, making Bitcoin more resistant to censorship and government control. It also provides greater transparency, as anyone can verify transactions on the network.
Another important difference lies in how transactions are carried out. With fiat currencies, transactions usually depend on banks or payment systems, which may impose time restrictions and high fees, especially for international transfers.
Bitcoin, on the other hand, enables direct transfers between people, anywhere in the world and at any time, without the need for intermediaries. This makes the system more accessible, particularly for those without bank accounts or living in countries with restrictive financial systems. Additionally, Bitcoin transaction fees can be lower than those charged by traditional banks.
Fiat currencies offer security backed by government laws and the banking system, but users must place trust in those intermediaries. Bitcoin, by contrast, offers a high level of security through advanced cryptography. Digital wallets that store bitcoins are protected by private keys, ensuring that only the owner has access.
However, privacy works differently. Fiat currency transactions are typically linked to the user's identity, whereas Bitcoin offers a certain level of anonymity, since wallet addresses do not require personal identification. Still, all transactions are public and recorded on the blockchain, which can serve as a point of monitoring for authorities.
The value of fiat currencies is backed by trust in the government that issues them and the country's economy. In contrast, Bitcoin is not backed by any government or physical asset. Its value is determined by market supply and demand, making it highly volatile. While this volatility presents a risk, it also attracts people who see Bitcoin as a long-term appreciation opportunity.
In summary, Bitcoin and fiat currencies differ significantly in their structure, control, and functionality. While fiat currencies are government-controlled and depend on intermediaries, Bitcoin offers decentralization, transparency, and financial freedom. Despite its volatility and some regulatory challenges, Bitcoin represents a new alternative to the traditional financial system.
Thank you very much for reading this far. I hope everything is well with you, and sending a big hug from your favorite Bitcoiner maximalist from Madeira. Long live freedom!
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Veterano não é dono de bixete
"VETERANO NÃO É DONO DE BIXETE". A frase em letras garrafais chama a atenção dos transeuntes neófitos. Paira sobre um cartaz amarelo que lista várias reclamações contra os "trotes machistas", que, na opinião do responsável pelo cartaz, "não é brincadeira, é opressão".
Eis aí um bizarro exemplo de como são as coisas: primeiro todos os universitários aprovam a idéia do trote, apoiam sua realização e até mesmo desejam sofrer o trote -- com a condição de o poderem aplicar eles mesmos depois --, louvam as maravilhas do mundo universitário, onde a suprema sabedoria se esconde atrás de rituais iniciáticos fora do alcance da imaginação do homem comum e rude, do pobre e do filhinho-de-papai das faculdades privadas; em suma: fomentam os mais baixos, os mais animalescos instintos, a crueldade primordial, destroem em si mesmos e nos colegas quaisquer valores civilizatórios que tivessem sobrado ali, ficando todos indistingüíveis de macacos agressivos e tarados.
Depois vêm aí com um cartaz protestar contra os assédios -- que sem dúvida acontecem em larguíssima escala -- sofridos pelas calouras de 17 anos e que, sendo também novatas no mundo universitário, ainda conservam um pouco de discernimento e pudor.
A incompreensão do fenômeno, porém, é tão grande, que os trotes não são identificados como um problema mental, uma doença que deve ser tratada e eliminada, mas como um sintoma da opressão machista dos homens às mulheres, um produto desta civilização paternalista que, desde que Deus é chamado "o Pai" e não "a Mãe", corrompe a benéfica, pura e angélica natureza do homem primitivo e o torna esta tão torpe criatura.
Na opinião dos autores desse cartaz é preciso, pois, continuar a destruir o que resta da cultura ocidental, e então esperar que haja trotes menos opressores.
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@ 90c656ff:9383fd4e
2025-05-03 11:17:21
Bitcoin was created as something far beyond just a digital currency; it is a revolutionary idea that challenges the foundations of the conventional financial system. The concept behind its creation, presented by the enigmatic Satoshi Nakamoto, focuses on two main principles: decentralization and financial freedom. These ideas reflect an effort to return control of money to the people, eliminating intermediaries and reducing the influence of governments and large financial institutions.
Decentralization is the foundation of Bitcoin. Unlike traditional currencies, which are issued and managed by central banks and governments, Bitcoin operates on a peer-to-peer network. This means there is no central authority or single entity controlling the currency. Instead, all transactions are validated and recorded on a public ledger called the blockchain or timechain, maintained by thousands of computers around the world.
This decentralized structure ensures that Bitcoin is resistant to censorship and immune to monetary policy manipulations such as excessive money printing, which can lead to inflation. It also removes the need for intermediaries like banks, allowing for direct transactions between users. This is especially valuable in scenarios where the traditional banking system is inaccessible or unreliable, such as in remote areas or countries facing economic crises.
The financial freedom promoted by Bitcoin is another transformative element. In traditional systems, individuals depend on third parties such as banks or financial institutions to access, store, and transfer money. These entities can impose restrictions like withdrawal limits, high transfer fees, or even freeze accounts. With Bitcoin, the user has full control over their funds through private keys (a kind of password that grants access to their digital wallet).
Moreover, Bitcoin offers an accessible solution for billions of people worldwide who are unbanked. According to World Bank data, around 1.4 billion adults lack access to a bank account, but many of them do have access to the internet or smartphones. Bitcoin allows these individuals to participate in the global economy without needing intermediary institutions.
Another crucial point is its censorship resistance. In authoritarian regimes or politically unstable situations, governments may confiscate or freeze citizens' assets. Bitcoin, being decentralized and operating on a global network, cannot be arbitrarily controlled or seized, offering an extra layer of financial protection for individuals at risk.
Bitcoin’s vision also includes the creation of a fairer and more transparent financial system. The blockchain or timechain, by recording all transactions in a public and immutable way, reduces the chances of fraud and corruption. Additionally, the limited supply of 21 million bitcoins, hard-coded into the system, supports a deflationary model that contrasts with the unlimited expansion of fiat currencies. This gives Bitcoin the potential to be a stable store of value in the long term.
Despite its promising vision, the path toward full financial freedom is not without challenges. Bitcoin’s price volatility, regulatory concerns, and technological barriers remain hurdles to overcome. However, these challenges also create opportunities for innovation and for strengthening the ecosystem over time.
In summary, the vision behind Bitcoin represents a disruption of the centralized financial system, offering people more autonomy, transparency, and security over their financial resources. It is not just a technology but a movement that aims to empower individuals, especially those excluded or harmed by traditional economic models. By promoting decentralization and financial freedom, Bitcoin paves the way for a future where money truly belongs to the people, not the institutions.
Thank you very much for reading this far — I hope everything is well with you, and sending a big hug from your favorite Bitcoiner maximalist from Madeira. Long live freedom!
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
sitio
A static site generator that works with imperative code instead of declarative templates and directory structures. It assumes nothing and can be used to transform anything into HTML pages.
It uses React so it can be used to generate single-page apps too if you want -- and normal sites that work like single-page apps.
It also provides helpers for reading Markdown files, like all static site generator does.
A long time after creating this and breaking it while trying to add too many features at once I realized Gatsby also had an imperative engine underlying the default declarative interface that could be used and it was pretty similar to
sitio. That both made me happy to have arrived at the same results of such an acclaimed tool and sad for the same reason, as Gatsby is the worse static site generator ever created considering user experience. -
@ 90c656ff:9383fd4e
2025-05-03 11:07:50
Bitcoin is the world’s first decentralized digital currency, created in 2009 by an individual or group under the pseudonym Satoshi Nakamoto. Its birth marked the beginning of a revolution in the global financial system, introducing a new kind of currency that is not controlled by governments or traditional financial institutions. The history of Bitcoin is deeply rooted in the ideals of economic freedom, transparency, and resistance to censorship.
The journey began in October 2008, when Satoshi Nakamoto published a paper titled “Bitcoin: A Peer-to-Peer Electronic Cash System.” The white paper, published on the Cryptography mailing list, described the idea of a digital payment system based on a peer-to-peer network. This concept eliminates the need for intermediaries like banks and solves a problem known as “double spending” — the possibility of duplicating digital currencies — through a technology called blockchain, or what Satoshi Nakamoto himself referred to as the timechain.
The blockchain, or timechain, is essentially a public and immutable ledger that records all Bitcoin transactions. It operates through a decentralized system where participants in the network (the so-called nodes) verify transactions and organize them into blocks. These blocks are in turn linked together in a continuous chain, forming the basis of the system’s security and transparency.
On January 3, 2009, Satoshi Nakamoto mined the first Bitcoin block, known as the genesis block. The block contained a coded message referencing the 2008 global financial crisis: "The Times, January 3, 2009, Chancellor on brink of second bailout for banks." This message is emblematic of the motivation behind Bitcoin: to provide an alternative to the centralized financial system that failed to protect the global economy.
Throughout 2009 and 2010, Bitcoin remained an experiment among tech and crypto enthusiasts. The first Bitcoin transactions took place between network participants, and the first commercial use of the currency occurred on May 22, 2010, when a programmer named Laszlo Hanyecz bought two pizzas for 10,000 Bitcoins. This historic transaction became known as “Bitcoin Pizza Day.”
Satoshi Nakamoto continued to contribute to Bitcoin's development until the end of 2010, when he gradually disappeared from the community. To this day, his identity remains a mystery, and there is no concrete evidence of who or how many people were behind the pseudonym. Before leaving, Satoshi Nakamoto handed over control of the project to other developers and made it clear that Bitcoin should be a decentralized technology, owned by everyone and controlled by no one.
Since then, Bitcoin has grown exponentially. It has evolved from a technological experiment into a multibillion-dollar asset and is widely considered a legitimate form of digital money and store of value. Governments, companies, and individuals around the world have adopted Bitcoin as an alternative to traditional fiat currencies.
In summary, the creation of Bitcoin by Satoshi Nakamoto was more than just the birth of a digital currency; it was the beginning of a global movement to rethink how money is controlled and distributed. Although the identity of Satoshi Nakamoto remains unknown, his legacy will continue to shape the future of the financial system and challenge traditional economic structures.
Thank you very much for reading this far. I hope everything is well with you, and sending a big hug from your favorite Bitcoiner maximalist from Madeira. Long live freedom!
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
neuron.vim
I started using this neuron thing to create an update this same zettelkasten, but the existing vim plugin had too many problems, so I forked it and ended up changing almost everything.
Since the upstream repository was somewhat abandoned, most users and people who were trying to contribute upstream migrate to my fork too.
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@ 0d8633e5:eec06e57
2025-05-03 10:58:22
The Flash USDT Generator is responsible for producing and storing Flash USDT tokens with a flexible daily limit. It ensures a consistent supply of tokens for transactions while managing distribution securely and efficiently. Our Flash USDT offers a unique, temporary cryptocurrency that lasts for 90 days before expiring. This innovative solution allows for seamlesstrading and transferring of funds. Notably, the Flash Bitcoin and USDT can be transferred to 12 different wallets, including prominent platforms like Binance and Trust Wallet.
Features Adjustable Daily Limit: Customizable settings allow for modifying the token generation cap. Automated Distribution: Ensures quick and secure token transfers to user wallets. Minimal Latency: Prevents blockchain congestion issues for seamless transfers. Real-Time Transaction Verification: Each transaction is immediately verified on the respective blockchain explorer to confirm accuracy and validity. Temporary Nature: One of the most distinctive characteristics of USDT FLASH Generator is that it generates flash coin that is designed to disappear from any wallet after a period of ninety days. This unique feature ensures that any assets received in USDT FLASH will not linger indefinitely, creating a dynamic and engaging transaction experience.
Kindly visit globalfashexperts.com for more information Contact Information For more information or to make a purchase, please contact us through the following channels:
Email: globalfashexperts@gmail.com Flash USDT:https://globalfashexperts.com/product/flash-usdt/ Flash USDT: https://globalfashexperts.com/product/flash-usdt-generator-software/The Flash USDT Generator is responsible for producing and storing Flash USDT tokens with a flexible daily limit. It ensures a consistent supply of tokens for transactions while managing distribution securely and efficiently. Our Flash USDT offers a unique, temporary cryptocurrency that lasts for 90 days before expiring. This innovative solution allows for seamlesstrading and transferring of funds. Notably, the Flash Bitcoin and USDT can be transferred to 12 different wallets, including prominent platforms like Binance and Trust Wallet.
Features
- Adjustable Daily Limit: Customizable settings allow for modifying the token generation cap.
- Automated Distribution: Ensures quick and secure token transfers to user wallets.
- Minimal Latency: Prevents blockchain congestion issues for seamless transfers.
- Real-Time Transaction Verification: Each transaction is immediately verified on the respective blockchain explorer to confirm accuracy and validity.
- Temporary Nature: One of the most distinctive characteristics of USDT FLASH Generator is that it generates flash coin that is designed to disappear from any wallet after a period of ninety days. This unique feature ensures that any assets received in USDT FLASH will not linger indefinitely, creating a dynamic and engaging transaction experience.
Kindly visit globalfashexperts.com for more informationContact Information
For more information or to make a purchase, please contact us through the following channels:
- Email: globalfashexperts@gmail.com
- Flash USDT:https://globalfashexperts.com/product/flash-usdt/
- Flash USDT: https://globalfashexperts.com/product/flash-usdt-generator-software/
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Xampu
Depois de quatro anos e meio sem usar xampu, e com o cabelo razoavelmente grande, dá pra perceber a enorme diferença entre não passar nada e passar L'Oréal Elsève, ou entre passar este e Seda Ceramidas Cocriações.
A diferença mais notável no primeiro caso é a de que o cabelo deixa de ter uma oleosidade natural que mantém os cachos juntos e passa a ser só uma massa amorfa de fios secos desgrenhados, um jamais tocando o outro. No segundo caso os cabelos não mais não se tocam, mas mantém-se embaraçados. Passar o condicionador para "hidratar" faz com que o cabelo fique pesado e mole, caindo para os lados.
Além do fato de que os xampus vêm sempre com as mesmas recomendações no verso ("para melhores resultados, utilize nossa linha completa"), o mais estranho é que as pessoas fazem juízos sobre os cabelos serem "secos" ou "oleosos" sendo que elas jamais os viram em um estado "natural" ou pelo menos mais próximo do natural, pelo contrário, estão sempre aplicando sobre eles um fluido secador, o xampu, e depois um fluido molhador, o condicionador, e cada um deles podendo ter efeitos diferentes sobre cada cabelo, o que deveria invalidar total e cabalmente todo juízo sobre oleosidade.
Por outro lado, embora existam, aqui e ali, discussões sobre a qualidade dos xampus e sobre qual é mais adequado a cada cabelo (embora, como deve ter ficado claro no parágrafo acima, estas discussões são totalmente desprovidas de qualquer base na realidade), não se discute a qualidade da água. A água que cada pessoa usa em seu banho deve ter um influência no mínimo igual à do xampu (ou não-xampu).
No final das contas, as pessoas passam a vida inteira usando o xampu errado, sem saber o que estão fazendo, chegando a conclusões baseadas em nada sobre os próprios cabelos e o dos outros, sem considerar os dados corretos -- aliás, sem nem cogitar que pode existir algum dado além da percepção mais imediata e o feeling de cabelereiro de cada um --, ou então trocando de xampu a cada vez que o cabelo fica de um jeito diferente, fooled by randomness.
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@ d0aa74cd:603d35cd
2025-05-03 10:55:11
CLI #Haskell
https://photonsphere.org/post/2025-05-03-command-line-energy-prices-haskell/
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@ 90c656ff:9383fd4e
2025-05-03 10:31:25
Bitcoin is a decentralized digital currency created in 2009 by an individual or group under the pseudonym Satoshi Nakamoto. Unlike traditional government-issued currencies like the US dollar or the euro, Bitcoin is not controlled by any central authority, such as a central bank or financial institution. This innovative feature has made it a focal point of economic, technological, and even social debate in recent years.
Bitcoin operates using a technology called blockchain (which the Bitcoin community increasingly prefers to call "timechain"). It is essentially a distributed digital ledger. The blockchain or timechain records all transactions made on the Bitcoin network in an open and transparent way. Each block contains a set of transactions that are immutably added to the chain once they are verified by miners (miners are basically network participants who use their computing power to validate these same transactions). This ensures security and prevents fraud, as no person or entity can retroactively alter the records.
One of Bitcoin's most notable features is its limited supply. Only 21 million Bitcoins can ever be created, which gives Bitcoin a deflationary nature — unlike fiat currencies, which central banks can print in unlimited quantities. This fixed limit, combined with growing global interest in the technology in general and individual privacy specifically, has driven Bitcoin’s value over time.
Another important characteristic of Bitcoin is that it enables direct peer-to-peer transactions, removing the need for intermediaries. This is particularly useful in cases like international transfers, where Bitcoin can be used to send money quickly and at low cost, without going through a bank or traditional financial services. Additionally, it is seen as a form of financial freedom in countries with unstable local currencies (often due to central banks printing money uncontrollably) or strict state-imposed capital controls.
However, Bitcoin is not immune to criticism — though these are often hollow arguments that mask the personal interests of those making them, whether because they work in traditional banks or brokerages and fear losing "power" or even their jobs, or because they have bad intentions and want to promote their own cryptocurrencies, which are fundamentally worthless (the infamous “shitcoins”). Bitcoin’s price volatility can also pose significant risks for inexperienced users who buy at a certain price and end up selling when the value drops by half, losing at least half their money. On the other hand, many experts view Bitcoin as a technological and social milestone that challenges existing economic models.
In summary, Bitcoin is much more than just a “crypto” or “cryptocurrency.” It represents a revolution — or a revision — in how most people think about money, offering a decentralized, transparent, and censorship-resistant alternative. Although it still faces challenges to becoming widely accepted by some skeptics and by governments worried about losing control over “their” populations (as mentioned earlier), its impact has been undeniable, paving the way for a new era in the global economy and opening many minds to reflection.
Thank you very much for reading this far — I hope you're doing well, and sending a huge hug from your favorite Bitcoiner maximalist from Madeira. Long live freedom!
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
IPFS problems: Too much immutability
Content-addressing is unusable with an index or database that describes each piece of content. Since IPFS is fully content-addressable, nothing can be done with it unless you have a non-IPFS index or database, or an internal protocol for dynamic and updateable links.
The IPFS conceit made then go with the with the second option, which proved to be a failure. They even incentivized the creation of a database powered by IPFS, which couldn't be more misguided.
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@ 5f078e90:b2bacaa3
2025-05-03 10:18:41
The Spoonbill's Dawn
In a marsh where reeds whispered secrets to the wind, a roseate spoonbill named Sable waded through dawn’s amber glow. Her pink feathers shimmered, catching the first light as she swept her spoon-shaped bill through the shallows, sifting for shrimp. Unlike her flock, who chattered and preened, Sable moved with quiet purpose, her eyes tracing ripples for signs of life.
Each morning, she returned to a lone cypress, its roots cradling a pool where minnows danced. Here, Sable had found an odd companion: a young alligator named Moss, whose emerald scales blended with the water’s edge. Moss never lunged, only watched, his eyes like polished stones. Sable, curious, began leaving shrimp at the pool’s edge. Moss, in turn, nudged smooth pebbles toward her, gifts from the marsh’s depths.
One dawn, a storm loomed, its thunder rattling the reeds. The flock fled, their wings a pink blur against charcoal clouds, but Sable lingered. The pool was still; Moss hadn’t surfaced. She dipped her bill, calling softly, her heart a flutter of worry. Then, a ripple—Moss emerged, sluggish, a gash on his flank from a poacher’s trap. Sable’s instinct was to flee, but she stayed, her bill probing the mud for healing herbs she’d seen egrets use.
With gentle nudges, she pressed the herbs to Moss’s wound, her pink wings shielding him from the rain. Moss rumbled, a low thanks, and rested. By dusk, the storm passed, and the marsh gleamed under a crescent moon. Moss stirred, stronger, and nudged a final pebble to Sable—a heart-shaped stone, glinting pink like her feathers.
Sable took flight, the stone clutched in her bill, her wings carving hope into the sky. The flock returned, awed by her tale, and the marsh buzzed with their chatter. Sable and Moss remained, their bond a quiet legend, proof that even in a wild world, trust could bloom where dawn met dusk.
Word count: 313
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Cultura Inglesa e aprendizado extra-escolar
Em 2005 a Cultura Inglesa me classificou como nível 2 em proficiência de inglês, numa escala de 1 a 14 ou coisa parecida. De modo que eu precisaria de 6 anos de aulas com eles pra ficar bom. 2 anos depois, sem fazer nenhuma aula ou ter qualquer tipo de treinamento intensivo eu era capaz de compreender textos técnicos em inglês sem nenhuma dificuldade. Mais 2 anos e eu era capaz de compreender qualquer coisa e me expressar com razoável qualidade.
Tudo isso pra documentar mais um exemplo, que poderia passar despercebido, de aprendizado de tipo escolar que se deu fora de uma escola.
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@ e4950c93:1b99eccd
2025-05-03 09:59:59
🧵 Produits en cette matière
Les marques suivantes proposent des produits fait exclusivement ou principalement avec cette matière :
Vêtements
Cet article est publié sur origine-nature.com 🌐 See this article in English
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Scala is such a great language
Scala is amazing. The type system has the perfect balance between flexibility and powerfulness.
matchstatements are great. You can write imperative code that looks very nice and expressive (and I haven't tried writing purely functional things yet). Everything is easy to write and cheap and neovim integration works great.But Java is not great. And the fact that Scala is a JVM language doesn't help because over the years people have written stuff that depends on Java libraries -- and these Java libraries are not as safe as the Scala libraries, they contain reflection, slowness, runtime errors, all kinds of horrors.
Scala is also very tightly associated with Akka, the actor framework, and Akka is a giant collection of anti-patterns. Untyped stuff, reflection, dependency on JVM, basically a lot of javisms. I just arrived and I don't know anything about the Scala history or ecosystem or community, but I have the impression that Akka has prevent more adoption of Scala from decent people that aren't Java programmers.
But luckily there is a solution -- or two solutions: ScalaJS is a great thing that exists. It transpiles Scala code into JavaScript and it runs on NodeJS or in a browser!
Scala Native is a much better deal, though, it compiles to LLVM and then to binary code and you can have single binaries that run directly without a JVM -- not that the single JARs are that bad though, they are great and everybody has Java so I'll take that anytime over C libraries or NPM-distributed software, but direct executables even better. Scala Native just needs a little more love and some libraries and it will be the greatest thing in a couple of years.
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Webvatar
Like Gravatar, but using profile images from websites tagged with "microformats-2" tags, like people from the indiewebcamp movement liked. It falled back to favicon, gravatar and procedural avatar generators.
No one really used this, despite people saying they liked it. Since I was desperate to getting some of my programs appreciated by someone I even bought a domain. It was sad, but an enriching experience.
See also
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@ 3bf0c63f:aefa459d
2024-01-14 13:55:28
Per Bylund's insight
The firm doesn't exist because, like Coase said, it is inefficient to operate in a fully open-market and production processes need some bubbles of central planning.
Instead, what happens is that a firm is created because an entrepreneur is doing a new thing (and here I imagine that doing an old thing in a new context also counts as doing a new thing, but I didn't read his book), and for that new thing there is no market, there are no specialized workers offering the services needed, nor other businesses offering the higher-order goods that entrepreneur wants, so he must do all by himself.
So the entrepreneur goes and hires workers and buys materials more generic than he wanted and commands these to build what he wants exactly. It is less efficient than if he could buy the precise services and goods he wanted and combine those to yield the product he envisaged, but it accomplishes the goal.
Later, when that specific market evolves, it's natural that specialized workers and producers of the specific factors begin to appear, and the market gets decentralized.
