Agrupación Vocal de Cámara del Centro de Instrucción Comercial
{"copyright_id":"0xb7f7a3c05a5e3737ef737de118870b7461df36e8c47ff006ae73d4cd438f85fc","name":"Agrupación Vocal de Cámara del Centro de Instrucción Comercial","registered_at":"2026-06-20T23:04:24Z","symbol":"NIM1739397","token_address":"0x4ac640f60396ce5a8257480889b40439739b4f8d","type":"artist","uuid":"cacad0c3-fa40-4000-a8de-b3f152daa633"}
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 0xb7f7a3c05a5e3737ef737de118870b7461df36e8c47ff006ae73d4cd438f85fc. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cacad0c3-fa40-4000-a8de-b3f152daa633.json and https://artists.proofprofile.net/proofs/artist/cacad0c3-fa40-4000-a8de-b3f152daa633.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).