1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9e84c21586f0c005d2af9b00542b812dfe54f0c04b35e76599e052cdc1c198. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9daab4fc-d400-4891-a12e-7e31397051b2.json and https://artists.proofprofile.net/proofs/artist/9daab4fc-d400-4891-a12e-7e31397051b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Edad de Oro de Las Orquestas Canarias (Volumen I)
La Edad de Oro de las Orquestas Canarias Vol. 1