{"copyright_id":"0x7ea2780c4f0eeab3c021b6d5378fd8f3fe8f6d17fd70b7f6cdee63f4d07a784c","name":"Nashville Ambient Ensemble","registered_at":"2026-06-20T18:21:51Z","symbol":"NIM1676990","token_address":"0xa1e126645acd51683717e5f6eb99041b7e25703f","type":"artist","uuid":"be7cdaea-d50c-44f2-b12f-8cbdeddeb5b0"}
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 0x7ea2780c4f0eeab3c021b6d5378fd8f3fe8f6d17fd70b7f6cdee63f4d07a784c. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be7cdaea-d50c-44f2-b12f-8cbdeddeb5b0.json and https://artists.proofprofile.net/proofs/artist/be7cdaea-d50c-44f2-b12f-8cbdeddeb5b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).