Matt Corallo 🟠

@TheBlueMatt

10th known contributor to Bitcoin Core. Full-Time Open-Source Bitcoin+Lightning Projects @spiral_xyz. Open-Source Bitcoin for 15 years. Mostly reposting @soona.

NY/SF, usually

bluematt.bitcoin.ninja

Joined February 2011

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Matt Corallo 🟠
@TheBlueMatt
Feb 13
It’s time for bitcoiners to step up and build. You don’t need to know anything about software development anymore, you just need to know how to write words! We have a golden opportunity to build out agentic payments based on open money, rather than letting agentic payments be
calle 🟥
@callebtc
Feb 12
USDC on base seems far more common for 402 payments now than Bitcoin. Recently, even Stripe joined the bandwagon. That’s a centralized stablecoin on a permissioned chain. Agents are starting to use fiat. It’s a huge loss, and in a race, many aren’t even aware that it exists. The
Matt Corallo 🟠
@TheBlueMatt
Aug 10
Another weird narrative post-ColdCard is that if we'd just had covenants (CTV, I guess?) it wouldn't have happened. This is nonsense. The many people who wanted the simplicity of generating one set of keys on one device couldn't use vaults - vaults require generating multiple
Matt Corallo 🟠
@TheBlueMatt
Aug 9
People got this weird idea after segwit that a “UASF” is this magic thing where a bunch of people on social media get together and start making threats and suddenly Bitcoin’s consensus rules will change. That’s nonsense. I’m sorry if you were told that the thing that activated
Farside Insights
@FarsideInsights
Aug 9
Replying to @hodlonaut
BIP-148 definitely did have lobbyists working back channels. Many of those lobbyists and BIP-148 supporters back then, were on my side in 2026 fighting against BIP-110. BIP-148 was fundamentally different to BIP-148 in many ways: 1. The overwhelming majority of the Bitcoin
Matt Corallo 🟠
@TheBlueMatt
Aug 1
Block security folks absolutely killed it yesterday.
Clay Garrett
@clay_garrett
Jul 31
1/ During our investigation of the Coldcard drain yesterday, we identified an unusual pattern in the sweeps. That pattern led us to a hypothesis that has since been confirmed: the operator used a paid account at a well-known blockchain-services provider to query the source
Matt Corallo 🟠
@TheBlueMatt
Jul 31
LLMs are very two-sided for security. On the one hand, long-latent bugs are finally surfacing. On the other hand, before you choose to use a product, you can get your own code review done for incredibly low cost*! In the short term it’s incredibly bad, in the long-term it