@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

Vienna
Joined March 2009
Sebastian 🟩🥕 retweeted
There sure has been a lot of *talk* about Bitcoin development these last 18 months. Meanwhile, there's been an awful lot of actual development work done. Examples of what Bitcoin Core has been working on throughout this all: - a node that syncs in nearly half the time - a path to 5x faster (SwiftSync) - a new GUI to make running that node easier, maybe even on mobile - a redesigned mempool with better fee bumping and fee estimates - a mining interface so individual miners can build their own block templates (Stratum v2) - a private broadcast so your transactions can't be traced to your IP - a reproducible map of the entire internet for node eclipse attack protection - a better way to relay time-sensitive Lightning and Ark transactions for confirmation - a multisig that's cheaper, more private, and looks like any other payment on-chain (MuSig2) - a private payment address with zero linkable payments (silent payments) - a threshold (e.g. 3-of-5) signature scheme that looks like a single signature (FROST) - a proposal to fix known protocol bugs and current attack vectors (BIP54) - a slew of post-quantum research to be ready for future attack vectors - a first-ever independent security audit for more eyes on the code - a new tool that attacks a live node the way a real adversary would (Fuzzamoto) - a fix that killed an entire class of disk-filling attacks - a replacement for a risky external library - a consensus engine the whole ecosystem can build on (Bitcoin Kernel) Over a hundred contributors and more than a dozen funding organizations around the world. Not without controversy. Not without bugs. But undeniable progress. August will come and go. This work will continue.
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2 and 1/2 years, 5 PR takes, 1284 review comments, 1 protocol change and countless force-pushes and CI runs later, we made it to the finish line and the Silent Payments (BIP-352) module has finally landed in libsecp256k1! 🤫🎉 #1471 → #1519 → #1698 → #1765 🏁✅(→ #1792 🏷️⛔)
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Over the years, this effort was driven primarily by BIP-352 author @josibake. Huge kudos! 👏🫡 Thanks to everyone who helped make this happen, whether through PR reviews or conceptual discussions: @achow101, @andrew_s_toth, antonilol, @brrrunog, @craigraw, Eunovo, @fjahr, furszy,
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jlest01, @n1ckler, @LLFOURN, @L0RINC, macgyver13, nymius, @real_or_random, sipa, @provoost, @SomsenRuben, @Sosthene___, @spherostrat, @theuni, w0xlt. 🙏
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Sebastian 🟩🥕 retweeted
We are excited to announce that Martin Zumsande (@lightlike1) has (re)joined Brink to continue his work on Bitcoin Core including P2P networking, validation, testing, and review!
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Sebastian 🟩🥕 retweeted
Thanks to all the work done by @fjahr and pinheadz, libevent is no-longer a dependency of Bitcoin Core, This means a minimal bitcoind, now only has a single, header only, external dependency; which is Boost MultiIndex. Work is ongoing to replace this too.
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Sebastian 🟩🥕 retweeted
We are excited to announce that conduition (@conduition_io) has joined Brink as cryptographic engineer working on post-quantum cryptographic research and implementation!
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Sebastian 🟩🥕 retweeted
Sparrow v2.5.0 released with: Silent Payments (SP) wallets SP-capable Frigate public server @2140_dev bitview.space fee rates source sparrowwallet.com/download
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Sebastian 🟩🥕 retweeted
TIL that Pieter Wuille published a libsecp256k1 tutorial. wuille.net/posts/secp256k1-t…
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Sebastian 🟩🥕 retweeted
Bitcoin Core v31.0 was released! It is available from: bitcoincore.org/en/download/ Release notes: bitcoincore.org/en/releases/…
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Sebastian 🟩🥕 retweeted
BIP376: "Spending Silent Payment Outputs with PSBTs" has been published.
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Sebastian 🟩🥕 retweeted
With an increasing number of discussions around the BIP54 “Consensus Cleanup” soft fork proposal, I helped put together an information site about BIP54. “Bitcoin has four known vulnerabilities that have gone unfixed for 15 years. BIP54, "Consensus Cleanup", proposes four narrowly-scoped changes to address these issues in Bitcoin's consensus rules that date back to the original version of Bitcoin in 2009.” bip54.org/
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Sebastian 🟩🥕 retweeted
Silent payments is not just a new approach to static payment codes. It's the first serious contender to improve the address derivation system since HD wallets in 2013. HD wallets were a big win over single keys, and silent payments could be a similar leap forward.
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Exploits Replay: Nymius presents on a scanning problem with Silent Payment BIP352 that was discovered 6mo ago and his thoughts on how to discover these kinds of vulnerabilities earlier at @btcplusplus exploits edition in Florianopolis, Brazil this past Feb 🇧🇷#btcpp
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Sebastian 🟩🥕 retweeted
Wie könnten wir #Bitcoin quantensicher machen, wie schwer ist das und was bräuchte es dafür? In unserem Quantengipfel fassen wir den aktuellen Stand mit @n1ckler und @murchandamus zusammen. Doch hört am besten selbst! coinspondent.de/2026/03/31/h…
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Sebastian 🟩🥕 retweeted
Today we’re publishing Brink's 2025 Engineering Impact Report covering the work of the eight Bitcoin Core engineers we funded last year and why we think this work is important.
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Sebastian 🟩🥕 retweeted
A new release candidate of Bitcoin Core, v31.0rc1, is available for testing. This is a new major release, and follows v30.2. Work-in-progress release notes are here: github.com/bitcoin-core/bitc… Binaries are available here: bitcoincore.org/bin/bitcoin-…
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Sebastian 🟩🥕 retweeted
New BIP number assignment: BIP445: FROST Signing Protocol for BIP340 Signatures
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