Ethereum researcher uses AI agents + Lean to formally verify consensus protocol, eyeing 4-8x faster finality
anselm · x · 2026-09-26
- Ethereum OG researcher @fradamt (EthLabs, named author on 18 EIPs) announces a formally verified proposal for a decoupled consensus protocol in I (a future Ethereum upgrade), claiming a path to 4-8x faster finality.
- Because Ethereum aspires to run with most stake offline, the protocol has far more components than a standard BFT protocol, and its correctness goes well beyond standard safety and liveness — those nuanced properties are now verified. It's not yet a full spec but includes all consensus-relevant details.
- Workflow: AI agents plus the Lean proof checker; agents hunt for breakages, produce counterexamples, and propose fixes, but nothing enters the protocol without passing formal mathematical verification — no "trust me bro."
- His takeaway: all future protocol design will involve AI-assisted formal verification, for both correctness and design speed.
Related event: Ethereum's Decoupled Consensus Protocol Formally Verified with AI(2 posts)→
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