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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490d88cc3139379e8ae36728b200053e3cfd79da651f35f696f6b8c9c2dec68c. 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/e2c99ea9-add4-4daa-a04e-1b936ead3f4f.json and https://artists.proofprofile.net/proofs/artist/e2c99ea9-add4-4daa-a04e-1b936ead3f4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage México Nº 102 - EPs Collectors "Como Un Perro"
15 Éxitos Con María Victoria - Versiones Originales
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52782bc2cdb79405c05f53ed906ebab841b1aacc443291fb39126d8e08bd1805. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/MXF018400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbc57f2bc25c28d8eec58137dba3c6bb6959d1f2997f36b683a5d0970536414. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/MXF018400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8952461c377a43d590cbf47cc5284d0e457fc020fdaee64bf0181811b584ae4c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXF018400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf56573a94511a520357d266805c9918424d1d3580df97df6fbfeafb4522b18c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/MXF016600105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f8bfabdeb2487a0193c66099d80c17451dbd528f3067806986225ede4ad7ef. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/MXF018400020.
Tesoros de Colección - María Victoria (Celebrando 60 Años de Historia Musical)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0849154bbc280b1e11dc8bda18285389a2f622694d5e1ac4901645b4f002d575. 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/MXF019600915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82728cc0c05d1b78a1ffd196b68a62515ea9169eab76479eda275f6d2ea23882. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/MXF019200242.
Paloma Mensajera (with María Luisa Landín)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccccb1b30dbf9baaf9d15fb738da2483c5812c539bc968203622485537ac3016. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MXF010001263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7928151130eec6add3e0e1561e986d3723a822eea417c9eddcaa26cfdefbb4e4. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/MXF019200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4049f6a75a9dbc8dd7008afa572a996c98408c38c825f166f2ff62e7750227. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXF015800506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2068baa1fb1c858620b4aaf9d698bd3195d09df58127e8d3e720f641b9d7d04c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/MXF019600323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b94fe13c3c9dbbaf1cd13c1a4f70e44a7c0722968561279127eccd73daa9c93. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/PLH492289000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3816262187c7a9c9f2cce8b64866c54ff6203d4b0f64a5f54c4521bff34e75. 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/MXF010001278.
Tesoros de Colección - Las Estrellas de la Hora Azul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82728cc0c05d1b78a1ffd196b68a62515ea9169eab76479eda275f6d2ea23882. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXF019200242.
17 Años (with Juan Gabriel) - Remasterizado
Tesoros de Colección - Los Maravillosos Duetos Que Siempre Recordaremos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3816262187c7a9c9f2cce8b64866c54ff6203d4b0f64a5f54c4521bff34e75. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MXF010001278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618c3f06e799b66ebe68c6a7388a7b838953b2481166e77468fc99abdcdc29bc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNJV2185234.
Grandes Éxitos del Boleroglam, Vol. 2 (Track by Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618c3f06e799b66ebe68c6a7388a7b838953b2481166e77468fc99abdcdc29bc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNJV2185234.
15 Exitos De Alvaro Carillo Con Sus Mejors
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63626bbfbbfef076b754944490b6ca6a9706af19ffd7f57777be8a425149968. 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/MXF010400605.
25 Aniversario, Duetos Y Versiones Especiales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3816262187c7a9c9f2cce8b64866c54ff6203d4b0f64a5f54c4521bff34e75. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF010001278.