{"copyright_id":"0xca3acce61a0677ca8adf33caf7581cde9d4213d01e2ce7cb308e5435dc087ab2","name":"Cities Church Music","registered_at":"2026-06-16T17:33:13Z","symbol":"NIM1124781","token_address":"0xb0a2c29d2bce2b6401ada915ba5cfe55fe648411","type":"artist","uuid":"4feb7287-f74a-44dd-82bc-ec1cadf7f90d"}
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3acce61a0677ca8adf33caf7581cde9d4213d01e2ce7cb308e5435dc087ab2. 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/4feb7287-f74a-44dd-82bc-ec1cadf7f90d.json and https://artists.proofprofile.net/proofs/artist/4feb7287-f74a-44dd-82bc-ec1cadf7f90d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).