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 0x28a3e21787fcac899366fa320d671e3a7dccc4eaf0ef73877b82e22bed114048. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38050b55-a83d-4a73-8a83-e1e542ebb3be.json and https://artists.proofprofile.net/proofs/artist/38050b55-a83d-4a73-8a83-e1e542ebb3be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dj Robot (Música Original del Programa Infantil CLUB CLAN de RTVE)
Música para cerrar las discotecas (Version vinilo 7)
Música para cerrar las discotecas (Versión vinilo 7 pulgadas)
Eso hacíamos - Versión vinilo 7 pulgadas
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 0x7572fdc480354eedd88f9770aca4bcbe9bd9b298bfaab3fffaf5acb6f1593439. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:07:16Z), 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/ESA011104422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547b2c88639045eff8eeecd48935dec89e367580c7ffe97e021d30b85b586d59. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ESA011104569.
Doble Pletina Contra Los Amores Perdidos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69791a8027986d338de8d91a7e0cce61c230f10208eac504dc82fc38900e1d44. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ES05A2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772407afa78bf74172d206c328c62345c4a2ef14cb9427c37484b69954f5513b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ES05A2100020.
Stop. Siete Escenas de la película (Música Incidental) [Banda Sonora Original]
Monólogo catártico - Banda Sonora Original
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709eafe189ed8eafff8883a7edd511e213dd5557c7cf828c06fa19eadab74838. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES05A2100030.