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 0xed98a81361a518f502af833616482c10572f925d2754cf29317c2dd6245c8a92. 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/6bf64544-880d-4630-bb34-9a538e03b754.json and https://artists.proofprofile.net/proofs/artist/6bf64544-880d-4630-bb34-9a538e03b754.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 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 0x0c9f7ab49e0cd946684d08b950599400307e88bcdf11d2f932e2cb5077fe5616. 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/US3DF2089001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5649f87bc7e3e1b8870c7071fac51d85bba3e3f472ca6ced14e04e5967f19e20. 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/CLCZ21903318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4920f008e3b6285a1359b94f86cd7398e6219cd6e8dea791fbbb98cd1f4b4e77. 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/CLCZ21903319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9e54af3ff9a49fc39cff3cb8ed445a1365e470109d64d1dd87f28ae6a3e992. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/CLCZ21903322.
Mix Zumbale: Disparo al corazón - Madre soltera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79820b9d0351de11ffd98eb2012166b8cad8d9f8c21b06f71d514ee9c9dab250. 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/CLCZ21903324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f58444db616f724cc245ecf442e9e87361f614899e5c7dcbd3e137aa2e25d03. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/CLCZ21903325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7b7d68c7388cfe185bd37614f48689e74e54b87f5b8ef83dd5611074147971. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/CLCZ21903326.
Mix Explosión: La nueva onda - Pícale pícale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0342f3bf21b7e521dad320c42fa1a4cd99fdc243fe625f71a6aa12087e2235ce. 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/CLCZ21903328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff1fd9708e957e7aa90d63128146c47a0d1e162e0fd5ab5ad013cdfaeacfb79. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/CLCZ21903329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7f06ee9fd88f227592932b970da7898dd8cbb0f1c193ac2961497160685c17. 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/CLCZ21903330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec942dc2134b235214612d68344210bd5607302ae6f2b965ea1a04a91283bb9. 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/CLCZ21903333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc218f346f344921c8577391a21cae865bc6017f9fc7a75fa60e1b9b5f1f8e70f. 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/US3DF2087597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f84683e8ca5e42df2452ef4fd8e76ebd6e2e637c0bd5e9d641d6f2356af6074. 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/US3DF2087600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73116b71a9690d377e31b779585ff0e993d97235216ab3875cbd0148fa003835. 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/US3DF2087601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52734450d9c1e44a54aa22f7ad9217f29b7ac0d81aaf93192096c6214cb2666. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/US3DF2087604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4b9fb8666b2ab22e161948346566ef58891774991969e485b25507bb1de4aa. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/US3DF2087605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fa61cb334f868b0feb5977421778a82a75ada99a7692c3c021ef19af447cc0. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/US3DF2087608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a76f3d6a48adfeb88f279fa56d53fccaf965dd54b0a65fb0e458b8a610af1e. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/US3DF2087610.
Rosita de Olivo / Te Hice Mal / Luna Perdida
Grupo Zúmbale Primo En Concierto (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e9a8985fd0f1ab1dbd037ef0d86445271128647e8e4d3e1f5280fbfb54f8fe. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/US3DF2117406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e56120d44cfe91671a64b6a66ad79262e2c31f9c3ccbe729b27568f48310f9c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/US3DF2089224.
La Partida de la Gitana / No Aguanto Más / Y Ahora Te Vas / Si Tu Te Vas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9b9fedb87caa28b86734edf23ff30823a656dcea03211b48bf9a6c2ec7a5a4. 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/US3DF2089228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d1d2721abbe615c5c9a6db1c456287cb883a007525ca49d394d82eb87d09ef. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/US3DF2089017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0d3574a2b95af4da5f8c9bbf13d2157e0534d426bec1adf5cf25ab5f2c375e. 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/US3DF2089018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd286ed1b04b29c1e1c6294ca7d3caf77631f4f2947611e8f5c22cd2f1f85b39f. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/US3DF2089020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeff0c21a04f60b744fd24256d008767883ed04e15156f00ab42aaa352f8e063. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/US3DF2089023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd18aee3b2f46318b957e2187138659a718b9787c94ba4abfe1236e6dbdf99d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/US3DF2089027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e436e30d4005f22cd2cdda8167ec51c03b88f469f24a8e8f110e9f127c5545. 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/US3DF2089028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861a41d9db9f6e9b8b505b34fde794cd833537eec17e948088177058d5180822. 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/US3DF2089033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd7c43ed87d9d63d3fe866ecb5a44cf0e0be99ccf70c9356258d06ff65a67ee. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/US3DF2120135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e545f6b4bf2aaf9c0ff61c080540480147fd627eb15c8d55f24fd38970f725. 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/US3DF2089851.
Me Emborracharé (Instrumental) (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaca79f347f3d022d1dc1515a91e240b4aa557beff0909a951054f6c715a954e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US3DF2089864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5572307438b7cb8fe3ac44a69ca2bdd0544e1cfaf7633230250d9854fb7c881d. 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/US3DF2177957.
Mix Cuarteto del Recuerdo: Por Lo Que Yo Te Quiero / Te Lo Juro Vieja / Te Perdiste Mi Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dcbcfffc0bf3c83679235785a1d00442caeb7cb388750399cfff7d6fe3fe89. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QM3DF2105065.
Cinco Días / Me Emborrachare (Éxitos Festivos 2021- 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200d172ebcaab66f1e47383caae7445c01719107a7d30fea0d7454d17ce5bf31. 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/ARQIH2301517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f0700cd9ec3e1d78ab3b359d961f2b8390c4c91108f4bdd27db4eaff519bae. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/ARQIH2301518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41468426d0c1b49a3cd349fd97d1302b0b2433ac08094104d23fd5dfa1a38856. 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/ARQIH2301519.