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 0xa621a4250f13820da7e70656716e9507483f4eb7198379cd289dbb973ed703c8. 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/dd8b42e8-d2e2-4712-8103-21ad31304041.json and https://artists.proofprofile.net/proofs/artist/dd8b42e8-d2e2-4712-8103-21ad31304041.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beso Sobre Beso, Convéncete y Otras Sabrosuras Bailables y Picaras
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 0x558f83c75ed872fc78c4540fd9b75fe52ae25764bc7c6c7883f0d8a08ea586a7. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBWUL2035732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71bdd2f0f55236d71258ef7049ddb6b7812bfce24cf3c9509a8884df0ef6abc. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/GBWUL2035747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442b84c5a4d7dd869ceea0d1c3967afeda797f05559197f02c918d57eece7c4a. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/GBWUL2034621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b0779d3324d7dba37c25c13e969be251ad5c322868df93b0f57c35fc8e6a94. 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/VED018001965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b8239bdece12d69ad51a2d987b84c6d1110cfbf4975035898cb766a0f9d93f. 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/VED018100945.
Anibal Velasquez: El Rumbero Mayor (20 Éxitos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36adda0eb4c537d6dce24e9e981f5f21778174fa115d31bd281707c5fdb7aa2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USZZR1100702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511ce86347d8fc3d794c19d873c0c5fef9ca8c3d22e1c7b5a1a1c64beb10c8d8. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/USZZR1011086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b776be0510a5148b52cd77eea8c41ae00cb55ad46ac6f4777b7f14dcae3e33c. 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/USZZR1011087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54cbe0247803d863e049e0abaefd054c720ab09bd76fa69d6549eecaf123856. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USZZR1011088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567ee33d93826f6ca818fc59e0de02266bed891d96d505816b10d07faecafd74. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USZZR1011093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2797067d3e67f53e6754c4ff8d12da91e85bd9858c6e8f6c6dcfaedffbda1273. 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/USZZR1011098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9430bbbed0050592ef00252d10b03210d01ebce45d59d697594eca9fcfabd3cf. 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/DENR91067001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e7f592bbcde110cfae636b5912b02484932d187bd6869e08409a951de17b6d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/COF019002732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9598d99862414edc920e839419a5c2f5ef08ea7bc762742f595560c76ed6c5f9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/COF019401715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b45b2e5cb6e96c28ef46f020075ec8982fe13c9a03cb173230ca51732544f26. 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/COF019401713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b208f6117150c44ba14c177c5dafb364b35a411fbd572c70dd22b65749dccc. 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/COF019401712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb3821b35d5ab2b21e04835a7c0e88f12d0f90ea4af2c72077abc9b93fed1a8. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/COF019401710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84384ec61b724daa39695750bf39b8efdc810501bbb81dfd821ed0c1ec4f86df. 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/COF019004257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaef2a34ce788c192e54a94c6574c1269a06c74caf0442655325521abeb19188. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USV351484926.
Los Éxitos de Aníbal Velásquez y Su Conjunto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d188ceef6db40e91954211b55f6eeded7c9eef9f70e01f67276ee3ed1502158. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/COF019600947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e19661e7b24baaf702c6ae46ba8d539e18c880096dfe4c1343234835468ea3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/COF019600938.
Capullito de Alelí / No Te Vayas / Menealo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7962ab8dd0c527db4fd7754b31d3f5f934186a1c82bdc028943e05c587aa4825. 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/COF019600948.
Anibal Velasquez Y Su Conjunto VS. Los Molineros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95a217c914c7fbe35528d32950102a4e2993a27aa7e06ee739272ac9bcec38e. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZ5AB1778153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49932fcffddcb44821ff8037b2174b81bf48c0c11e8cd9ff559d2ed479eb5494. 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/QZ5AB1765852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572979ae38fd82521d068ffeed16afad9e597942bf68a7ea2ac8c0b2dedbedb8. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QZNJV2171121.
Aníbal Velásquez, Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 3
Aníbal Velásquez, Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 2
Aníbal Velásquez, Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 4
Aníbal Velásquez, Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e122252f0cfffef8dfebf8b255e3b2e834729e27f34c7e99dfd00a02f9495d1. 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/COF019004302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2424c58299aa0641a6272f321f3b7032eb132149cadff6020838bdf706175c52. 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/COF019004308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215ea4d0939b7edbd6c3a0046ec71cc018a37a13ba279705fea851be57c9b4a5. 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/COF019004307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ade048a8ef2ad6822a09d1af2e7315b31f1f628a8d0183cd91cb2ea3da95424. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/COF019004303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad521fa827058bd27cbce20e8049d2afcbda6f3247bf423cf8bec3d259ce2910. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/COF019004305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba11606a746e5b5c471f6e69e599c915653abbbea605e6c28133383014e1749. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/COF019004304.
Aníbal Velásquez, Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 11
Aníbal Velásquez, Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 12
Aníbal Velásquez, Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 7
Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 9
Aníbal Velásquez, Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 5
Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 10
Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 8
Aníbal Velásquez, Grandes Éxitos para el Mundo del Rey del Acordeón, Vol. 6
Pa que mas: Tres Acordeones /La Comadre /Promesas Cumplidas/ Sin querer Queriendo / La Descuidada / Llorando por Ti (Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c28170dbaf46755494cb5e028744f4b26c9f17bf1454a03dfbea3e6b44d1c1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNW72400969.
Los Mejores Éxitos de Anibal Velasquez, Vol. 03
Los Mejores Éxitos de Anibal Velasquez, Vol. 04
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1ef0c1e747194c0d087ccbca50289772c0cd46b6ad33a311ac02dc048cda75. 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/GBEUE1300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7c4c630f2239e9d6898159c8dd0056a353a5df0dc7e22ea175bdb9dd8c9875. 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/USJ3V1046205.