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 0xdb76179fa487245a2eb76cb1eafa3506ddcfaadf32a4aa08a4ee06e554530a65. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/939421a4-f9b8-4f4d-a867-3da714730245.json and https://artists.proofprofile.net/proofs/artist/939421a4-f9b8-4f4d-a867-3da714730245.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Caña Quema' - Music from Oriente de Cuba
El Son Y Su Sabor Desde Santiago De Cuba
Serrat Encanta: Cuba Le Canta a Serrat Vol. 1