{"copyright_id":"0x6c2fed3afdafba76827a13f58573286e1547bbd8dce333e86022da510b2be2f4","name":"Christmas Piano Song Masters","registered_at":"2026-06-16T18:35:45Z","symbol":"NIM1139697","token_address":"0xb5bfdbab6ac1c2e7db58beb33cea661cd9d4474e","type":"artist","uuid":"53646f96-9440-4e9a-b6a0-bdb371d232ec"}
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 0x6c2fed3afdafba76827a13f58573286e1547bbd8dce333e86022da510b2be2f4. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53646f96-9440-4e9a-b6a0-bdb371d232ec.json and https://artists.proofprofile.net/proofs/artist/53646f96-9440-4e9a-b6a0-bdb371d232ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).