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 0xb683e97eded07dc5e9a568c12a4336b09e55c31d1a23f82915f89d46bab7f5d4. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73ff7046-a090-4647-bac3-86416e7ff855.json and https://artists.proofprofile.net/proofs/artist/73ff7046-a090-4647-bac3-86416e7ff855.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jeune Femme (Original Motion Picture Soundtrack)
But You Look so Good (Original Short Film Soundtrack)
Cigare au miel (Musique originale du film)
Une femme du monde (Original Motion Picture Soundtrack)
Extra Large (Original Motion Picture Soundtrack)
Le syndrome des amours passées (Musique originale du film)
Zorro (Original Soundtrack From The Series)
Le monde n'existe pas (Bande originale de la série)
Dans l'Ombre (Bande Originale de la série)