Sebastian 🟩🥕
@theStack
Passionate about #bitcoin (Core contributor since 2019), nature, OpenBSD, books, bass, beer & chess 🏞️ PGP: 6A8F 9C26 6528 E25A EB1D 7731 C237 1D91 CB71 6EA7
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Bitcoin Core now has an interface for its consensus code - it only took a decade. github.com/bitcoin/bitcoi…
You know what’s frustrating? When you’ve got the skills, the drive, and the ideas to make an impact, but the only thing stopping you is a border stamp. That’s the reality for so many brilliant Bitcoin developers across Africa and the Global South. They can write world‑class…
Okay, v30.0 is tagged. Now that the [OP⏎ Debate|Bitcoin] is about to die, how about we pick something new to bash our heads in about? How about: - SENDTEMPLATE - TH+CSFS+IK - Consensus Cleanup - Great Script Restoration - Activate BIP 3 Links below.
Excited to share "Provable Cryptography for Bitcoin: An Introduction" - a comprehensive workbook that teaches formal security definitions and proofs through hands-on exercises. Solutions included!
One year ago Marco (@macrohead7) embarked on a year long Brink fellowship in our London office. Today, after a year of progress and contributions, we’re happy to bring him on as a full-time Bitcoin Core engineer…!
Nominations are open for the 2025 Bitcoin Research Prize! Submit papers that made an impact on Bitcoin or Lightning published after 2021: forms.gle/9fo6wUtQ5iaWtQ… Here is the talk by last year’s winners @n1ckler & @chelseakomlo --> youtu.be/9j1smRr_Ebc
A statement on Bitcoin Core development and transaction relay policy - bitcoincore.org/en/2025/06/06/…
Check out this overview of why you should get involved with bitcoin open source software and ways we can help you get started!
"Introduction to Bitcoin Open Source" talk by @satsie of @Bitcoin_Devs from our Bitcoin Student Dev Day, held March 8th 2025 in collaboration with @laurier_bitcoin and @wlooblockchain @BTCStudents
On Monday's Livestream (May 5 @ 12 PDT) I'll be reviewing OP_RETURN and discussing github moderation twitch.tv/achow101 I will: - Look at the history of OP_RETURN's implementation - Evaluate the arguments from the ML post and PR for and against the change (cont'd)
Bob Ross discusses Bitcoin bugs in Frenchglish with mistery masked man, tune in!
At the @MITBitcoinClub's Bitcoin Expo earlier this month I was able to sit down with @darosior and discuss his version of the Great Consensus Cleanup proposal to address a handful of serious bugs in the Bitcoin protocol.
Announcing DahLIAS! 🎉 The first crypto protocol for full cross-input signature aggregation that allows reusing Bitcoin's curve secp256k1. ✅ 64B sigs ✅ Verify is ~2x faster than half-agg'd Schnorr sigs ✅ 2-round signing Kudos to the team: @real_or_random @yannickseurin! 👇
Bitcoin Core v29.0 was released! It is available from: bitcoincore.org/en/download/ Release notes: bitcoincore.org/en/releases/29…
⏩SwiftSync - smarter synchronization with hints Near-stateless, fully parallelizable validation. Validation is at the heart of Bitcoin. Optimizing performance is invaluable. It's fast. Early benchmarks show a 5.28x speedup (h/t @theStack) 👇Go read! gist.github.com/RubenSomsen/a6…
Bitcoin Optech newsletter #349 is here: - describes a proposal for speeding up Bitcoin Core initial block download, with a proof-of-concept implementation that shows a roughly 5x speed up compared to Bitcoin Core’s defaults - recaps the "Stricter internal handling of invalid…
Only TIL about qemu-user and feel like an idiot for having copied and executed cross-compiled unit test binaries directly on the target for many years 😶yurovsky.github.io/2016/12/14/qem…
as a lispy warmup for the upcoming advent of code, did an old day1 exercise in Guile Scheme (how hard can it be?) and almost went insane😱xkcd.com/297/
Ledger's and bitcoin-core's MuSig2 implementations successfully signed today both 2-of-2 MuSig2 keypath spend and a script spend. Help review @achow101's PR, and cross-test with your own implementations, to help bring this past the finish line! github.com/bitcoin/bitcoi…
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