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 0x1f4524017afa752a6748313a1de820de1a1e29c6e7c90710e76cfa6c16ae849f. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2531af9f-5e39-4bfb-8ade-08e618d16fd8.json and https://artists.proofprofile.net/proofs/artist/2531af9f-5e39-4bfb-8ade-08e618d16fd8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La baie des anges (Original Motion Picture Soundtrack, Mono Version)
Michel Legrand, no. 5 (feat. Les Fontana) [Mono Version]
Musique du film l'empire du soleil (feat. Les Fontana) [Mono Version]
De Marlène à Marilyn: 30 ans de musique de film (Mono Version)
Aux quatre coins du monde : Amérique du sud (Mono Version)
Une femme est une femme, extraits (Original Motion Picture Soundtrack, Mono Version)
Les 7 péchés capitaux (Original Motion Picture Soundtrack, Mono Version)