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 @Julio Santos #bitcoin #BTC #nostr

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

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

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

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

#btc #bitcoin

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?

Exame

O buraco de minhoca do sistema fiduciário

Qual a relação entre a expansão do Universo e sua dificuldade em economizar, comprar uma casa ou acumular dinheiro suficiente para se aposentar?

#bitcoin #btc #nostr

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

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

“Bitcoin is down today but fiat has been down since 1971.” Anonymous