Identity may refer to: Identity document Identity (philosophy) Identity (social science) Identity (mathematics) Arts and entertainment Film and television Identity (1987 film), an Iranian
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 0x2b4c936b9722d9db6aff52b51ce61ca816909cd3eeaf4d4ff1d49a26f89b4107. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff8f3610-85e3-4920-9048-2f72abc66d45.json and https://artists.proofprofile.net/proofs/artist/ff8f3610-85e3-4920-9048-2f72abc66d45.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).