{"copyright_id":"0xf5abfa4ccc4ac8191e514bffbb2a8ec484af3bc2bfc333138cabb8036f0d76c9","name":"YUTAKA(Full Of Harmony)","registered_at":"2026-06-20T18:34:04Z","symbol":"NIM1679883","token_address":"0x207aa9898a40a19b0cee4b6771dcd3988d2ba9ba","type":"artist","uuid":"bebbf9ec-f850-424d-8b67-b8fa4ad9a0e3"}
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 0xf5abfa4ccc4ac8191e514bffbb2a8ec484af3bc2bfc333138cabb8036f0d76c9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bebbf9ec-f850-424d-8b67-b8fa4ad9a0e3.json and https://artists.proofprofile.net/proofs/artist/bebbf9ec-f850-424d-8b67-b8fa4ad9a0e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).