{"copyright_id":"0xcf79f25be7adfd1b77a2b8ea33aebb3f82e73af7ad2592eec64b7f4b1ae78cc2","name":"Guy Lombardo And His Royal Canadians","registered_at":"2026-06-16T23:05:45Z","symbol":"NIM1204120","token_address":"0x519bdde5b1440c7886b1448991f1d33f5fc7ae65","type":"artist","uuid":"600d3561-599e-432c-a10c-cfc5a8d3cae6"}
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 0xcf79f25be7adfd1b77a2b8ea33aebb3f82e73af7ad2592eec64b7f4b1ae78cc2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/600d3561-599e-432c-a10c-cfc5a8d3cae6.json and https://artists.proofprofile.net/proofs/artist/600d3561-599e-432c-a10c-cfc5a8d3cae6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).