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 0x81c7c2f94dc316c5a308abeecc582bcaeea725596b11d2d8669d3f97e5e8c883. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/880054f7-d7e5-4633-8296-d2d2bdfc350a.json and https://artists.proofprofile.net/proofs/artist/880054f7-d7e5-4633-8296-d2d2bdfc350a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alardea (Original Soundtrack From The TV Series)
Au Pair (Original Motion Picture Soundtrack) for cello solo
Fuerza de Paz (Música Original de la Serie de RTVE)
Falat, Pour Ceux Que Le Langage a Déserté
Artesanía (Original Motion Picture Soundtrakck) for percussion
Agrio (Original Motion Picture Soundtrack) for violin solo
Esta Noche - Canción Original de la película Los Últimos Románticos
Los Últimos Románticos (Banda Sonora Original)
Edonora - Azken erromantikoak filmaren jatorrizko abestia
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 → block OTSBitcoinBlock must exist at that height 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 0xcafd8601acceee504cd17ddf0a46fbae773da23b474bc9545d549e54593f1acc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA0P2451299.
DETECTIVE TOURÉ (Música original de la serie de RTVE)