Sepolia · Testnet demo · release 1
64-bit secp256k1-shaped
Find the secret scalar d with d·G = Q. Exactly what recovering a private key from its public key means.
Fell in 18 h
- Prize
- 25 tUSD
- Estimated cost
- under $1 on CPU2³⁰·⁵ work, estimated, not benchmarked
- Opened
- Oct 14, 2026 · 5 days ago
- Expires
- Oct 14, 2027
- Commitments
- 3
Fallen
Solved 18 h after it opened.
Committed Oct 15, 2026 by 0x46907e…9a42EF. Paid 25 tUSD.
verify the payout onchainThe instance
Derived from the hash of block 11,914,105. Anyone can recompute every value below from the spec and the chain.
- Level id
- 0x29b87e2f043639264f62e40299040d78f0ce0238aaeec2a41bafab8dbe47e340
- Seed
- 0xf28b03e2ad48b0f8c4aba587cbae1aaa421990963b052cc37c543e59d0a2e1b8
- Curve
- y² = x³ + 7
- p
- 9223372036854783571
- n (order of G)
- 9223372034947717963
- G
- (2617508912950131665, 5997218944238621264)
- Q
- (2350926527912006740, 8031894055669727174)
- Contract
- 0x5D6322…C48277
Claim
Solved it? Check the answer here, then commit and reveal. The reference solver and the spec are in the method notes. How to solve
This level has fallen.
Its prize has been paid. The date and the solution stay on the chain.
History
Every event for this level, from the contract.
- Finalizedblock 11,943,55016 h ago0xa929…30e5
- Committedblock 11,943,54216 h ago0xd8d0…0e6d
- Committedblock 11,943,53416 h ago0xaa4d…a4d7
- Revealedblock 11,919,5104 days ago0x9b15…5046
- Committedblock 11,919,5064 days ago0xc05d…6ec9
- Sealedblock 11,914,1075 days ago0x1c44…c332