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 0x4e0a5951e61e6473ca81e191f9f089b985489c1da3beef15b3d42b1e9f978b76. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f361e900-7dd0-4dd9-8c47-3e4dd36b628e.json and https://artists.proofprofile.net/proofs/artist/f361e900-7dd0-4dd9-8c47-3e4dd36b628e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Marte, dio della guerra (Original Motion Picture Soundtrack)
Hong Kong Un Addio (Colonna Sonora Originale) – EP
Muraglie di ghiaccio - figure geometriche
Terrore nello spazio (Terror In Space) [Colonna sonora originale del film]
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c10f61bd5ecfade5a7cb7f0eb8646f67a81f06d0218f0826e326f62aa2b1300. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITC040302458.
Ercole alla conquista di Atlantide (Original Motion Picture Soundtrack)
La furia di Ercole e ritorno a casa (Finale) (From "Ercole alla conquista di Atlantide")