{"copyright_id":"0xf27099fdfdfc9859e5434fb93a695d87349d02ac565cda0b30eb55d91b2c042e","name":"Coro Infantil Del Parque De La Ilusion","registered_at":"2026-06-21T06:24:59Z","symbol":"NIM1847157","token_address":"0xae96798bb9dfca0a1e7625b8828ce71eeb638b8d","type":"artist","uuid":"e0aac42c-cb29-4eb7-b48e-2e1ae020659d"}
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 0xf27099fdfdfc9859e5434fb93a695d87349d02ac565cda0b30eb55d91b2c042e. 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/e0aac42c-cb29-4eb7-b48e-2e1ae020659d.json and https://artists.proofprofile.net/proofs/artist/e0aac42c-cb29-4eb7-b48e-2e1ae020659d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).