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 0xf755c8fecc9f9f1fbe241552de46853ac29f97dc9f637638cac154d24f21c020. 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/71929cb1-52b4-4bd8-b06c-c029b2d165ef.json and https://artists.proofprofile.net/proofs/artist/71929cb1-52b4-4bd8-b06c-c029b2d165ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
101% Rancheras De Oro - 20 Éxitos De Colección
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 0xf1e8498e49a26e4706c705d4fc04fff2600474f9d6b363033a93eeeba0a2e7b4. 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/MXF550511820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744d3744758af9e3c7bd37388829c737eebbe2df21af40d92dad527f41323ef2. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/MXF550511824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa80788c665c76a30adf8fffa50f4fc4d5479fd73ee221bb080bd8ca756fed8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/MXF550511828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1b170d46e5eaad4f82aa0bde966ca71e7eed510a6cfe338cc94a8f6668344d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/MXF550512893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21471284c328ed5a5188daa9fa0e20e015159dd9850388a35c6c125abcf089ac. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/MXF550512885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb08c2d5cd4ddea0bd2880db24e690a1c458cc1843bbe268d59296e2b8f46c6a. 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/MXF550512941.
Gracias, Juan Gabriel! 15 Grandes Exitos
Gracias Juan Gabriel - 16 Grandes Exitos Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6b8eb622341e9e5837719125c8da11dfd511ea3e53ec0d02577152583aea9c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/MXF170710343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56a703a62f938cdad0009bb6e7cbf94ffc6c21698fe68421ead7e93b476bd85. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/MXF170710356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24427c6c56fb894ca98557da87adbf9e0e3eed4930ddeba1e9f75a382456591a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXF170811872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3cb3b8a4026fe1243e7c73fc3552dc34b53226b07c16a2dc9084bfbf4d2c0b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MXF550512864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348207ea8718ad90e2b91a47ed58abd27199b258d26673e09d4348efae061fb3. 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/MXF550513302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890dd25f4d062e2b8497360c97d15967e1775fda5a4fb29b10101a5660819a1c. 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/MXF550513321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67ffc7d473a52557852fa05428e23e442f8eef341cf6e637f2edf1bf732e8cb. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/MXF550513325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5856b0fbea3693799ca51441f2776f5a14e8520c7a4894be55dcf4ee42b1a55c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/MXF550513334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fed2cd9fb92922023db32eaae6c6c5148417dc7a8b56be01aa7a74a9ec793b. 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/USV291386437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e8e29c1e2aa02df0a1ab48df801f66bf0fbdfbc4fdfdbfe345334d87dff55a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USV291386519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758213c3b5c7cf7afabe07f99eff8496582fd29c9321f297ce721dbe387474b1. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/MXF550904458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af414d9f1c9d1fd534061b6c89e1cf409c37f2024505688aa00cee6de8542f6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXF550806065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4b6d864162510111a2751be96d2f2ac006b2d15bd00f73725dea5edb1644d8. 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/MXF550807761.
Homanaje a las Mejores Canciones de Chente
Lo Mejor Del Mariachi Arriba Juárez, Vol. 2
Las De Juan Gabriel Con Mariachi Super Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87c4a0acd9481c6c2a6d418d093ed6613bbcb7941163b772ca1c2e44c6e71e7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/MXF552012291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f1181cbefeaa0187fc5a4dc6bc42f6014d4da19e45028e0dde273ca0ea23b0. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/MXF552011574.
Quinceañera, Valses de Strauss, Mexicanos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b98c00affac8c63d30e87ef88d57eb698e102391e766b17ff47639e0e5a4995. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/MXF550803294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4342c28253130d351917807df005a8699191005aabc96e92a75c3930706bb15. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/MXF550803290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b5c70c9168936e5c6e6e62f849352651566dfe70be57272017e33e76f080b4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MXF550803292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c6090df4afd9729b76635751d6c5409c311714f1ce4486db822fc23112c188. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/MXF550803295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb14f3854da8c2854dd542c3d62d6b7199836e23cfbb3febbf134fab8907bb5b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA371276445.