Liston may refer to: Liston (square), a Venetian word for a part of the city, usually a square or section of a square. Liston (surname) Liston, Essex, a hamlet in England Liston, New South Wales,
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f2359f9e06326aea9e91c19bf1d4c27f74b2ed89cc58e550788a211ef9b7c0. Chain 2 (Bitcoin): anchored in block 953970 (2026-06-16T16:09:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29d8e69c-ee31-4dc0-b042-40e676db3d0d.json and https://artists.proofprofile.net/proofs/artist/29d8e69c-ee31-4dc0-b042-40e676db3d0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).