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 0x745f451a7973714f6d05e89848391139720a2bf6d178d05e9cd72eb7fdb623d3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0263c2c4-c211-4f58-a50c-864816d596fd.json and https://artists.proofprofile.net/proofs/artist/0263c2c4-c211-4f58-a50c-864816d596fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Amor Es un Invento (Elenco Original SIETE VECES ADIÓS)
Siete Veces Adiós (Elenco Original Siete Veces Adiós)
Algo Como Lo Nuestro No Existe - Elenco Original Siete Veces Adiós (Reprise)
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 0x6574d4b64f22f61576a432afa52cfa0e1fced50df463ace2d3a206aee465e825. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXB232200026.
Preludio "Y Después" - Elenco Original Siete Veces Adiós
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad8135d9d7964f1294efa6cf4d1710c9ceb67549718054fca0279dddc8a2288. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/MXB232200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc132bfbc881151e85a811886c2d10708be17bb395bf20e94a6676bc16b615c98. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/MXB232300060.
Siete Veces Adiós (Elenco Original Siete Veces Adiós - Edición Deluxe)
Preludio "Y Después" - Elenco Original Siete Veces Adiós - Edición Deluxe
Una Idea Fatal - Elenco Original Siete Veces Adiós - Edición Deluxe (Cynical Edit) [Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91fee234898f13bf53580ebd1df87d08c30a7b3555ba24a627ada2d66cbb8ad. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/MXB232200024.