Eston is a former industrial town in the Redcar and Cleveland unitary area of North Yorkshire, England. It is part of Greater Eston, which includes the outlying settlements of Grangetown, Normanby, So
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 0x5f79c0f921c979603035ea44e9d1d18a06c16332ff7bd5a723c2fbc5ebb5289d. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1afe0e6-5047-4ca4-856d-439f624dacb1.json and https://artists.proofprofile.net/proofs/artist/c1afe0e6-5047-4ca4-856d-439f624dacb1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).