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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a9ebf22c1d230561383bb89d81c4c428e2bcb13155ee168d23028ec340e4cf. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b54b6b63-7e68-4296-a479-f1bfec5abc18.json and https://artists.proofprofile.net/proofs/artist/b54b6b63-7e68-4296-a479-f1bfec5abc18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les oubliés de la victoire (L'odyssée des soldats d'Orient) [Musique originale du film]
Drôle de guerre (Musique originale du film)
Déconnectés (Original Motion Picture Soundtrack)
Ruines, Les Blessures de la Guerre (Musique Originale du film)
Tempête Xynthia - L'avertissement (Original Motion Picture Soundtrack)
Drones (Black & White) [The Art of Drones]