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 0x8749ccdc3b3883a2cd874e26d3ed1f4ec130ca7a582020c2994e87990e7e051d. 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/7f44ff47-88c3-4865-9662-d852bc7ac7c9.json and https://artists.proofprofile.net/proofs/artist/7f44ff47-88c3-4865-9662-d852bc7ac7c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x0c41f9d6e660252ee8e99fa74a987c464de9b1015b7da2fa974ff1fbb9ff0ce9. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:28Z), 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/COF019601630.
Clásicos Tropicales Con Yolanda Rayo: 15 Éxitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e7d7f8837a341e3fc1bc4ab48a9a4fba423224708311ba90c75dcd0ff0d02f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/COFC10071006.
Yo Viviré - Música Original De La Serie A Grito Herido
A Grito Herido (Música Original De La Serie A Grito Herido)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae142be72d4930a9a7bfb177b2eb32087397c46cff809d4de02dcf775df23509. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/COSO12200170.
Popurrí De Juan Gabriel - Música Original De La Serie A Grito Herido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9270da80091144a0068cfdc895186ff853ecda65d8879614d779134142820330. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/COSO12200179.
La Maldita Primavera - Música Original De La Serie A Grito Herido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7102fbd39ed21edf856c42994ffb5d2c792bac069af4f56c85301a9543d5e8f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/COSO12200159.
Te Amo - Música Original De La Serie A Grito Herido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0063974ac587219e0f67fbecceb3e7a487c74bb969e49b48e26a88b677ab9dd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/COSO12200190.
Será Porque Te Amo - Música Original De La Serie A Grito Herido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d74613d653cee40810e0f45cc38a67fc7b3d8176bc6cb43e3ceade7ae81038. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/COSO12200195.
Volver A Empezar - Música Original De La Serie A Grito Herido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2530905f3e1ba759a29f64b0718bccf946192284686c9e8363d789836f589510. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/COSO12200178.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch