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 0xe96382cbcd12e2eb0df7bbbe92c30b45e72cf35e68ebb4e069975671efb2b87f. 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/5f37ebd0-859a-41a2-83e4-1307bf4c5c03.json and https://artists.proofprofile.net/proofs/artist/5f37ebd0-859a-41a2-83e4-1307bf4c5c03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lo Bueno de Llorar (Original Motion Picture Soundtrack)
A Memória Que Me Contam (Original Motion Picture Soundtrack)
Creo (Una Serie Sobre las Creencias de los Chilenos Hoy) [Música de la Serie de Televisión Original]
Islas del Mundo (Original TV Show Soundtrack)
Não Se Pode Viver Sem Amor (Original Motion Picture Soundtrack)
En la Cama (Matias Bize Original Motion Picture Soundtrack)
Perfidia (Rodrigo Bellott Original Motion Picture Soundtrack)
De Jueves a Domingo (Dominga Sotomayor Original Motion Picture Soundtrack)
La Memoria del Agua (Matías Bize's Original Motion Picture Soundtrack)
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 0xeb9cb2249aeb85532e8fecf16e93c5c90b467e27ffd9b132721ca11b4046f6ff. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FRX871581877.
La Última Cuba (Banda Sonora Original del Documental)