Matheus

In 2017, Germany completed a repatriation operation of half the country's gold reserves, which lasted four years and cost 7.7 million euros.
The operation aimed to repatriate all gold held in Paris and one-third of the reserves in the US, where it had been stored for many decades to prevent it from falling into the hands of the Soviet Union's communist regime during the Cold War.
This cost of 7.7 million euros was purely operational and included:
- Authentication verification;
- Detailed weighing and laboratory testing;
- Remelting of bars for international standardization required by banking records;
- Transportation;
- Insurance;
It did not include the largest cost, which was precisely adapting the storage facility in Frankfurt for this reserve, estimated at 52 million euros.
Now, imagine if there were an asset that could:
- Be verified instantly instead of going through weighing, analysis, and laboratories;
- Be transferred within 60 minutes, not four years;
- Cost a few euros instead of tens of millions;
#bitcoin
#btc
#nostr
https://blossom.primal.net/f8d07eb35fa7f5bce779823d6ecf4136c0f0e2d2b44b2ce4fa838fd762c8a483.jpg

2025-09-17 10:59:32 UTC

Já que não existe muitos usuários de Bitchat no Brasil, tá aí uma forma alternativa de usá-lo:
Para receber perguntas da plateia durante um painel sobre a @nprofile…d75u um evento!
#bitcoin
#btc
#nostr
#bitchat
https://blossom.primal.net/c059c38e64dbf69df6b6d08722f6c1b4b56ad28718fbfdc7b78afc9dae79a6c2.jpg

2025-09-01 16:53:59 UTC

Paying it forward with what I've learned over the past few years.
For at least the last three years, I've been jotting down notes on concepts tied to the financial system and Bitcoin. Some of that stuff I even shared or published, while other bits were just for my own understanding.
But after piling up page after page, it hit me that the same material that helped me start wrapping my head around these ideas could be handy for other folks who, like me, aren't economists or tech whizzes.
So I decided to turn those notes into a free book that anyone can download and share for free.
This weekend, I picked up some printed copies, and I also got a site up and running (it's pretty basic, I know!) where you can grab the digital version, plus links to buy physical copies or e-reader editions, those come with their own costs, and I don't make a dime off them!
There won't be any bookstore launch event or signing session, but that doesn't mean I can't share it with you here in #nostr .
In the final chapter, I rounded up 65 fun facts about Bitcoin throughout its history! So even if you skip the more technical sections, you've got this lighter one to check out!
There are tons of people I should thank for their support along the way, even though most of them don't know me and have no idea about the impact they've had.
A few are already mentioned in the book, but I have to give a special shoutout to other authors @nprofile…56r6 @nprofile…2smn @nprofile…rrp9 @nprofile…2306 Nik Bhatia…
Let me know later which fact you thought was the most interesting!
https://blossom.primal.net/e5ff8ce4daf93922a601c91af83efc458711389d6a609ca8c05c2040bc4545b7.jpg

2025-08-31 15:11:25 UTC

The curiosity about who Satoshi Nakamoto is will become a movie.
“Killing Satoshi” has just been announced and is set to premiere in 2026.
And no, Dorian Satoshi Nakamoto wasn’t invited to join the cast.
Unlike most films on the topic, which are documentaries, this one will be fiction and is set to start filming in London in October.
#BTC #bitcoin #nostr #satoshi
https://blossom.primal.net/70083d2baa31fabee059730c28fce6add5d05ede677fa33551c1de2dd2879853.png

2025-08-15 17:45:45 UTC

Event for 6k lawyers in São Paulo!
Talking about #bitcoin and Private Law Society!
@nprofile…uml9
#btc
#nostr
https://blossom.primal.net/9171dd86da64146730aeb1479b49379b5692d56c1c9149c775c666b2e7892bec.jpg

2025-07-30 17:07:43 UTC

#btc
#bitcoin
#nostr
https://blossom.primal.net/9aa214eec4b94d5d60778ff8ec956cd68ace34342aaa9d8493a4e5bbbde098d0.jpg

2025-07-24 17:28:15 UTC

#bitcoin
#BTC
#nostr
https://blossom.primal.net/ec05fa87c894f46395501c2e4b639a0b93655877b7f0fa2ade189418e75965d8.png

2025-07-15 08:47:19 UTC

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Valeu pela parceria Julio! Sempre aprendendo ao escrever esses artigos com você!

2025-07-14 17:45:57 UTC

Blackrock: "Fiz 6,5 bi com 11,5 tri sob gestão!"
Tether com apenas 157 bi sob gestão: "Segura minha cerveja..."
Um modelo de negócios que até então sempre fora proibido pelo Fed por representar um risco indevido à estabilidade do sistema financeiro dos EUA.
Porém algumas empresas conseguiram contornar tais proibições e operam com margens gigantes!
São as emissoras de stablecoins que abocanharam o mercado dos proibidos bancos restritos (narrow banks).
Artigo escrito em conjunto com a fera @nprofile…mr27
#bitcoin
#BTC
#nostr
https://blossom.primal.net/ba1cd34978045c17e75d059cf28424e1a34a67508d1759743cae8e77e4b1342f.png

2025-07-11 19:07:34 UTC

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Turkey

2025-06-25 13:49:24 UTC

Se cada real emitido pelo Banco Central desde 2020 fosse uma moeda de 1 real, seriam necessários 3.740 contêineres para armazená-las.
Vamos aos números:
A base monetária em dezembro de 2019 era de R$ 316,5 bilhões.
Atualmente, em abril de 2025, ela está em R$ 435,1 bilhões.
Isso significa que R$ 118,6 bilhões foram adicionados à circulação nesse período de pouco mais de 5 anos, representando 37,5% mais dinheiro emitido pelo Banco Central do que há pouco mais de 5 anos.
Se o produto ou serviço que você comprava há 5 anos não teve um ganho de produtividade equivalente, vai perceber que seu dinheiro hoje compra muito menos.
Para efeitos de comparação, se cada bitcoin fosse uma moeda de 1 real, apenas 1 contêiner seria necessário para armazenar os 21 milhões que existirão.
Assim, fica mais fácil entender a diferença entre um ativo forte e um ativo corrompido.
#bitcoin
#BTC
#nostr
https://blossom.primal.net/0dcf47866a357816201867ebaec76915ea399f4d68ee3a570f1a97f9c0a36cd1.mp4

2025-05-28 12:56:30 UTC

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Nowadays bitcoiners offer time to help spread the word…

2025-05-28 12:39:03 UTC

How about solving a captcha and earning 5 bitcoins?
Too bad we’re 15 years late!
But this was actually a real initiative!
Exactly 15 years ago, Gavin Andresen created a website called Bitcoin Faucet that gave away BTC.
The protocol was still in its early days, and the goal was to allow more people to access bitcoins without having to mine.
Initially, he funded the faucet with 1,100 bitcoins, but over time, other donations were made. In the end, the faucet distributed 19,700 BTC before shutting down in 2012.
#Bitcoin
#BTC
#Nostr
https://blossom.primal.net/e678b51afeb043596655295910b7228b767b743fabffa56ffcae776c22def25e.png

2025-05-24 14:25:55 UTC

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beautiful collection

2025-05-22 15:37:52 UTC

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Yes! Laszlo was one of the first to mine with GPU!
https://bitcointalk.org/index.php?topic=133.0
And a curious fact: that pic with Laszlo in red shirt is not from Bitcoin Pizza Day! It is from Lightning Pizza Day in February 2018 when he bought again two pizzas but with LN!
https://primal.net/e/nevent1qqsfzkrnjy48qrug022eyy65y5ety92037acx92nggp3tepadxt4d2czffrjx

2025-05-22 15:11:58 UTC

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This pic is not from Bitcoin Pizza Day!
https://primal.net/e/nevent1qqsfzkrnjy48qrug022eyy65y5ety92037acx92nggp3tepadxt4d2czffrjx

2025-05-22 13:47:09 UTC

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Even for individual pizzas?

2025-05-22 12:11:22 UTC

Today is Bitcoin Pizza Day! But the photo below is not! What do you mean?
Confused?
In short, the photo below is from the second #BitcoinPizzaDay, or Lightning Pizza Day, since the photo was taken on February 25, 2018, when Laszlo negotiated and paid for pizzas with bitcoins again, but this time, using the Lightning network and paid 649,000 sats.
2010: 10,000 BTCs
2018: 0.00649 BTCs
2025: ?
And today, how much will our pizza cost?
#BTC #Bitcoin
https://blossom.primal.net/1c20b85d83b88f5d62758f4536921a93515bba5ef68b5422d46d2cd576d8f237.png

2025-05-19 15:31:49 UTC

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Shouldn't we be debating changing from 8 decimal places to 9?

2025-05-19 13:07:15 UTC

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Shouldn't we be debating changing from 8 decimal places to 9?

2025-05-16 19:56:52 UTC

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Meliuz!
They own 320 BTCs!

2025-05-12 16:22:56 UTC

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No…
Deck: 10 ^67
Atoms in Universe: 10^80

2025-05-11 21:34:02 UTC

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Estimated atoms in observable universe: 10^80…

2025-04-26 15:15:07 UTC

Exactly 14 years ago, Satoshi Nakamoto made his second greatest contribution to the world.
He disappeared!
On April 26, he sent his last message.
An email to Gavin Andresen in which he once again said he was dedicating himself to new projects and asked the community to start referring to Bitcoin as an open-source project developed by the community, and not by a mysterious figure.
#bitcoin
#BTC
#nostr
https://m.primal.net/QeJj.png

2025-04-23 22:53:10 UTC

#btc
#bitcoin
https://m.primal.net/QazS.jpg

2025-04-23 10:21:46 UTC

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I'll write these down! I can send you a copy of my book! It's free!
Let me know!
https://m.primal.net/QaQm.jpg

2025-04-16 18:21:24 UTC

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https://m.primal.net/QSai.jpg

2025-04-15 01:27:46 UTC

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50 Eth blocks are mined!

2025-04-15 01:24:37 UTC

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Pagou a cerveja dele?

2025-04-10 15:31:10 UTC

Artigo na Exame onde faço uma analogia entre a desvalorização contínua da nossa moeda e a expansão do universo!
Seria Bitcoin o buraco de minhoca do sistema Fiat?
https://exame.com/future-of-money/o-buraco-de-minhoca-do-sistema-fiduciario/
#bitcoin
#btc
#nostr
https://m.primal.net/QKkv.png

2025-04-01 14:16:07 UTC

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GM MAV

2025-03-29 13:19:57 UTC

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GM MAV

2025-03-26 14:06:26 UTC

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2025-03-25 11:15:43 UTC

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Sound is great Matthew!

2025-03-18 14:26:29 UTC

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2025-03-17 17:13:08 UTC

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2025-03-12 10:51:08 UTC

What if there is a bug in Bitcoin's code? Well, exactly 12 years ago, a bug was discovered!
At the end of March 11, 2013, a Bitcoin miner running version 0.8 created a large block (at height 225,430) that was incompatible with earlier versions of Bitcoin.
This caused a fork in the Bitcoin network and resulted in two separate blockchains. In the early hours of the following day, the developer community identified the problem: on February 19th of that same year, version 0.8 of the code had been released.
This version included a change in the database system that allowed a greater volume of transactions in each block, which the previous version 0.7 did not support. With the recent increase in transaction volume on the Bitcoin network, some blocks exceeded this limit and were rejected by nodes running version 0.7 but accepted by version 0.8, creating two incompatible blockchains.
Pieter Wuille announced that after discussions, the community recognized that the least risky path was to continue with the old chain.
The correction plan included several actions: miners needed to stop using version 0.8 and return to version 0.7, and nodes that had updated to the latest version needed to revert to the previous version.
Another recommendation was for merchants to stop accepting Bitcoin payments temporarily to avoid the risk of accepting transactions on the new chain, which would be discarded if the plan succeeded.
The plan worked, and 24 blocks later, the old chain had become the longest chain again.
#bitcoin
#nostr
#btc
https://m.primal.net/PdBO.png

2025-03-09 17:07:32 UTC

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2025-02-26 12:37:56 UTC

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https://m.primal.net/PLzx.jpg

2025-02-25 14:17:35 UTC

Remember Laszlo, the guy who bought two pizzas in 2010?
Well, exactly 7 years ago, on February 25, 2018, he did it again, this time using the Lightning Network.
Given the significant appreciation in Bitcoin's value, Laszlo paid 649,000 satoshis, or 0.00649 bitcoins.
Interestingly, the commonly shared picture of Laszlo in a red shirt with his two children around a table with two pizzas, often attributed to the 10,000 BTC pizza purchase in 2010, is actually from the Lightning Network transaction in 2018.
In the picture, there is a notepad in front of the pizzas with the code "7241 A8C1," which are the first and last four characters of the hex string of the transaction.
This code proved he paid the invoice, as a friend from London acted as a middleman, accepting the Lightning payment and facilitating the real purchase with the local pizza shop.
#bitcoin
#BTC
#Nostr
https://m.primal.net/PKow.png

2025-02-25 14:12:00 UTC

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2025-02-25 14:11:52 UTC

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2025-02-19 14:01:59 UTC

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2025-02-19 13:55:40 UTC

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2025-02-16 11:34:36 UTC

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Pillars of Creation. Probably the most beautiful pic of Hubble!

2025-02-13 16:20:16 UTC

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2025-02-12 12:31:45 UTC

Exactly 8 years since this episode!
While the then-president of the institution that erodes the population's purchasing power was giving a speech, a sign pointed to the hardest asset ever created by humanity.
On 12th February 2017, Christian Langalis, a 22 year old guy held up a "Buy Bitcoin" sign during Fed chair while Janet Yellen was speaking to the House Financial Services Committee.
Langalis was promptly escorted out of the room. He later received around 7 BTCs in donations.
On April 25th, 2024, Langalis sold his iconic sign in an auction. The Scarce City auction for the sign took place at PubKey, a Bitcoin-themed bar in New York City, and the sign was sold for 16 BTCs.
#bitcoin
#btc
#nostr
https://m.primal.net/OcSW.png

2025-02-11 15:25:10 UTC

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GM MAV

2025-02-11 15:24:13 UTC

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2025-02-11 00:39:05 UTC

Curiosity:
Exactly 14 years ago, on February 10, 2011, two terms were suggested to name the "cents" of Bitcoin.
We know that "satoshi" was one of the terms!
What was the other one?
Comment, and if you get it right, I will zap!
#bitcoin
#nostr

2025-02-08 14:26:19 UTC

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GM ODELL

2025-02-07 15:04:45 UTC

#bitcoin
#nostr
https://m.primal.net/OUoJ.jpg

2025-02-07 15:04:00 UTC

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2025-02-07 14:33:05 UTC

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2025-02-07 14:20:49 UTC

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2025-02-05 17:24:35 UTC

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2025-02-05 17:24:31 UTC

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2025-02-05 17:24:06 UTC

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GM MAV

2025-02-03 16:57:03 UTC

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2025-02-03 16:56:06 UTC

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2025-02-02 16:03:59 UTC

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2025-01-30 20:41:54 UTC

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Left Diffie…

2025-01-30 18:05:03 UTC

A bit of Bitcoin history:
Exactly 12 years ago, Bitcoin mining changed. Jeff Garzik posted on his blog that he had just received a package from China: an ASIC (Application-Specific Integrated Circuit) used for mining Bitcoins.
The equipment in question was much more efficient than the GPUs used up until that point.
The next day, Garzik shared his mining results: "After 20 hours of mining, the unconfirmed + confirmed rewards total 14.98832170 BTC."
#bitcoin
#btc
#nostr
https://m.primal.net/OIXd.jpg

2025-01-30 14:32:35 UTC

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2025-01-29 14:59:54 UTC

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2025-01-29 14:59:27 UTC

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GM MAV

2025-01-28 16:09:44 UTC

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GM MAV

2025-01-28 16:09:02 UTC

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Noble purpose!

2025-01-26 20:43:20 UTC

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2025-01-26 14:05:49 UTC

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2025-01-25 00:36:37 UTC

In honor…
https://m.primal.net/Nymq.jpg

2025-01-24 21:21:47 UTC

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Same here in São Paulo

2025-01-24 15:58:40 UTC

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GM MAV

2025-01-24 14:15:23 UTC

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GM Enjoy Friday

2025-01-24 14:14:57 UTC

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GM Enjoy the Friday

2025-01-24 14:14:43 UTC

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2025-01-22 17:12:02 UTC

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GM MAV

2025-01-22 11:13:10 UTC

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GM! Good day for freedom, decentralization, and Bitcoin…

2025-01-22 00:18:18 UTC

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Victory for Freedom, Bitcoin, Decentralization, Open Protocols…

2025-01-22 00:09:25 UTC

Ross is free!
#note1f7s…wex0

2025-01-21 14:38:39 UTC

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GM ODELL

2025-01-21 12:22:29 UTC

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GM Bitman!

2025-01-20 17:57:45 UTC

Escrevi um artigo contando a história do Silk Road, um controverso marketplace da Dark Web criado por Ross Ulbricht, cujo perdão da pena fora prometido pelo presidente dos EUA que toma posse hoje.
https://exame.com/future-of-money/quem-e-ross-ulbricht-criador-de-site-da-dark-web-ligado-ao-bitcoin-pode-ser-solto-por-trump/
#bitcoin
#nostr
#freedom
https://m.primal.net/NrIl.png

2025-01-20 17:08:14 UTC

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GM MAV

2025-01-20 17:07:56 UTC

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GM ODELL

2025-01-17 15:09:41 UTC

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GM MAV

2025-01-17 14:23:15 UTC

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GM Bitman

2025-01-17 14:22:34 UTC

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GM ODELL

2025-01-16 14:31:33 UTC

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GM MAV

2025-01-16 14:31:17 UTC

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GM ODELL

2025-01-16 13:16:09 UTC

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Hi Kalle! I would appreciate receiving a response from you! Even if it is a “no”!
Thanks!

2025-01-16 10:05:45 UTC

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https://privatelawsociety.net
Not social contact, but Bitcoin enforced contracts!

2025-01-15 14:14:36 UTC

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GM ODELL

2025-01-15 14:13:45 UTC

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GM MAV

2025-01-14 16:32:28 UTC

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GM MAV

2025-01-12 14:46:42 UTC

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Tiradentes was named in honor of Joaquim José da Silva Xavier, better known as Tiradentes. He was one of the leaders of a movement that sought Brazil’s independence from the Portuguese Crown at the end of the 18th century. The main motivation behind the movement was dissatisfaction with the high taxes imposed by the metropolis, especially the “quinto,” which required 20% of all gold production from the colony.
The movement was discovered, and Tiradentes was executed!
And here we are paying 35-40% tax and 8% per year inflation…

2025-01-12 14:21:55 UTC

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GM ODELL

2025-01-11 14:21:48 UTC

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GM ODELL