Você foi vítima do erro da coldcard?

I haven't told the full story yet, but I came to the same conclusion back in May 2025 when I started doing an audit of `coldcard/firmware`.

I wanted to figure out conclusively where the CC RNG was getting sourced from, and found that it backed up to some…

Who the fuck is (and where is) PETER GRAY?

Se alguém que você conhece ainda não entendeu o que aconteceu no episódio do crime cometido Coinkite, aqui está uma ótima explicação visual feita pelo Bitcoin Policy Institute:

https://youtu.be/IwrKWdxt0YM

Arti 2.5.1 is released and ready for download.

It's looking worse and worse. Nvk was a friend of mine, but for the CTO to commit the buggy code under a pseudonym has no reasonable explanation. He was already publicly working on security critical software, so a 'nym would not have bought him anything.…

Should Bitcoin Miners Listen To Michael Saylor, Bitcoin Core, or Node Runners?

⚠️ FINAL NOTICE: Miners forfeited their say. The MASF is over and BIP-110 is now a full UASF. They have less than five days, and if they stop mining Bitcoin, we switch proof-of-work algorithms.

Dizer que a urna eletrônica é segura por não estar ligada à internet é tão inadequado quanto dizer que o PIX é inseguro por ser um sistema diretamente ligado nela. Sistemas offline de alto interesse são historicamente invadidos e fraudados, conforme explico…

@SeedSigner is an open source community led project and not a company. There Github repo is open source and can be verified any anyone: https://github.com/SeedSigner/seedsigner

The SeedSigner is a stateless device, built of the shelf parts. You should really…

If you enjoy this conversation with @sesi_the_man you can also listen to our continued conversation, which took place one year later.
https://www.youtube.com/watch?v=BYRcw-TtvnA

If there was an unknown flaw in our code, or if you were tricked into loading malicious software onto your signer, it could compromise your quorum if you were managing it with a single device. I believe using multi-sig with a single signer still has tremendous…

SeedSigner doesn't "generate entropy". We collect user provided entropy to create keys.

Entropymaxxing at the Bitcoin Café in Derry, NH @bitcoincafex @SeedSigner 🧮⚡

People keep DMing me receipts like this one.

An external reconstruction of how Memory, Proactivity, Scheduling, Browser Use, Plugins, Skills and Tools work in the new ChatGPT Work.

🔐 SeedSigner: activar su Passphrase
1) Menú principal: Seeds
2) Load a Seed ➜ Create a seed
➜ Scan a SeedQR = importar una existente
➜ Enter 12/24-word seed = tipear una que tienes
➜ Create a seed = crear una nueva
3) Herramienta de creación
El SeedSigner…

5) Aviso
"Mantener tus palabras privadas + lejos de todo dispositivo conectado."
➜ Confirmás con "I understand".
6) El dispositivo te muestra tus palabras
Anotalas en orden, en papel, nunca en una foto ni en un dispositivo online.
7) Verify Backup
Opción…

9) Backup verificado
Todas las palabras confirmadas.
Recién ahora tu backup es confiable.
10) Finalizar seed
Aparece el fingerprint de tu wallet (ej: ac13c7ab). Desde acá podés sumar una passphrase BIP-39.
11) Tipear la passphrase
Recordar: que depende…

A cadeirinha infantil obrigatória paga imposto de acessório de luxo. O item que a lei exige sob multa gravíssima carrega carga tributária na faixa de 40%, importado em sua maioria, sem redução nenhuma por ser equipamento de segurança compulsório. O Estado…

A nota de 200 reais existe há seis anos e o brasileiro médio nunca segurou uma. Lançada em 2020 pra entesouramento pandêmico, ela circula pouco, é recusada em comércio, rejeitada por máquina, e virou mais instrumento de guarda de valor à margem do que meio…