{"copyright_id":"0x9a23e4545bfc6ae873bc4dc5ab3c8f81288e01bb4fffcd2ee01b7ec01acc4b7e","name":"Little Buster & the Soul Brothers","registered_at":"2026-06-15T05:29:55Z","symbol":"NIM0696776","token_address":"0x5a5a4c383174e30ed8e2aecbd1c1814ac43889ac","type":"artist","uuid":"eeaedf39-9d98-4648-9dad-04a4adff37ae"}
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 0x9a23e4545bfc6ae873bc4dc5ab3c8f81288e01bb4fffcd2ee01b7ec01acc4b7e. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eeaedf39-9d98-4648-9dad-04a4adff37ae.json and https://artists.proofprofile.net/proofs/artist/eeaedf39-9d98-4648-9dad-04a4adff37ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).