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 0x00e079599ef9fff6ca98348aea91648bad7e86461cdb8983c349ae60b728938e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44542ea4-5664-4d9c-b48b-0d1e585e2d21.json and https://artists.proofprofile.net/proofs/artist/44542ea4-5664-4d9c-b48b-0d1e585e2d21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Achoura (Original Motion Picture Soundtrack)
Mission Jean-Loup (Bande Originale de la Série Audio)
ZEF, une vie de combats (Bande originale du documentaire)
Scandales Alimentaires (Bande originale du documentaire)
Le Secret De Martha (Original Motion Picture Soundtrack)