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 0x1976f0aca3f5d8bd1024d083934039d962fa522fc4e01105209bf12781af0f42. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2064d667-b9fb-42df-bd94-347df4cdc8ee.json and https://artists.proofprofile.net/proofs/artist/2064d667-b9fb-42df-bd94-347df4cdc8ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Premières Chansons (L'Intégrale de "Marie-Jeanne-Gabrielle" à "Berlin)
Marie Jeanne Gabrielle (Breton French Song from Brittany -Keltia Musique - Bretagne)
Patience (Breton French Song from Brittany -Keltia Musique - Bretagne)
Berlin (French Song from Brittany - Keltia Musique - Bretagne)
Heritage Sénan (French Song from Brittany - Keltia Musique - Bretagne)
Breizh eo ma bro ! La bretagne est mon pays !