Brink grantee @conduition_io presented on the state of post-quantum Bitcoin research:
- Post-quantum output types
- Quantum canaries and tripwires
- Freezing, ignoring, or rate-limiting Satoshi-era coins
- Rescue protocols
- Hash-based, lattice, isogeny signature schemes
- Q&A
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Eugene (@bitcoinbrink grantee) has been working on incremental snapshots for fuzzamoto and just published a blog post on it:
I’ve pushed up a new round of -static-pie Bitcoin Core binaries that I’d like to get more testing of! More details on the mailing list:
We’ve been busy scanning 24 bitcoin repos for two months. Between them, we flagged 643 vulnerabilities, 70+ of which have already been fixed. Our first trial cohort rated Loupe 4.71 out of 5 and like the song says, that ain’t bad. Here’s all that and more:
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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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We are excited to announce that conduition (@conduition_io) has joined Brink as cryptographic engineer working on post-quantum cryptographic research and implementation!
Two Brink research interns, Dongjia Zhang and Stratos, recently wrapped up their 3 months of work on fuzz testing for Bitcoin Core.
Under the guidance of Niklas Gögge (@dergoegge), each conducted independent research & experimentation on Fuzzamoto...
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Brink’s 2025 Annual Report
Bitcoin Core v31.0 was released!
It is available from:
Release notes:
How can we automatically test Bitcoin nodes with millions of different tests/day without changes to the software itself while considering non-deterministic factors like time &randomness?
Niklas Gögge (@dergoegge) explores in part 2 of our Fuzzamoto series
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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.”
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Marco De Leon (@macrohead7) completed his transition from Brink fellow to full-time grantee, establishing himself as a capable contributor across multiple areas of the codebase. He drove the txid type safety project to completion across six pull requests, successfully removed Bitcoin Core's legacy checkpoints, left nearly 250 review comments, and contributed to fuzz testing infrastructure and P2P code review.
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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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The fuzzing retreat prior to btc++ was awesome! Thank you @Vinteum_org for hosting us!
