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 0xc4c3187e22eafe989e2bfa30d415369d14a5eb5bdc025f8eccaac334f967c9f2. 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/0f0e37cb-f60c-4683-a449-8c5fb68554c7.json and https://artists.proofprofile.net/proofs/artist/0f0e37cb-f60c-4683-a449-8c5fb68554c7.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 0xe4812df7e96d606e30bd0abd2de2be2cf7c3306c0c85a6652808bff480000252. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/ES5151500003.
Cuentos de desgarro (feat. Fernando Madina de Reincidentes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b9e5f235928857efc67b4fc920d07682e754c59e36ab08a7eb47bc138b459b. 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/ES5151500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afedb45559f9d767901fb14e4aa25071ee3451068cde39d8285b891319a661c. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ES5151500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6595181f6147c5d787640cb3f46f9e338b67c4be6a483a00974733f42b1403e2. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ES5151500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2816441d72eee86bef4659e6c24fd2c4752a4a5e80f04556a1f14c0952e737e9. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:06:26Z), 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/ES5151500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4954001bb844fe4b06d1a4fdaa5c923405b093ca8db21f4205044c5dfd5e8fa2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ES5151500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b81165518f6f8d322ecbf16f00ad41c216e7c7e96e9c6694e3dddccefcb1f5d. 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/ES5151500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39ccb1d8fc0daf0a731520f455583d3e45383979885a2caba9d5a58bcbd9c2a. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/ES5151500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1f1c97a67027b4e86307ba67b52e9b48e54dba7a7fc172b7d50297e3004d59. 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/ES5151500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1965ae91aef72a0bcdd35b36b006ec8820355a8da1e1899037fe053c95570543. 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/ES5151500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f3c0e39e5be1839a1e2042fba5664482ecdd0158b577ca1e66a6ee97d64a08. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/ES5151500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f79d501db96e643ad5953539a3c85b84413d89a885d003d2017bb480ff371cd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES5151500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58795a8bd124287244ca8d357014dfd403904074cfaf98ed744845774e91b36f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ES5151500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05798314b71e7be29013bf4cca4736ceddb709ad980b17fd524a7bafb5ac899. 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/ES5151500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f89b19b7e0264650622dbf1b1a5ad123b88bb75e35beb846bf859ecd82a6bf. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/ES5151402650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0850aafdecd4308a2ecb9a4a328d496d532bfc5e8200e293c75a3d3b12e9ac2. 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/ES5151402652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060e80513a45d1bc84f606ec50b049313fe37501d86d3d8f1364554f59beb5b7. 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/ES5151402653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaab7dc71b6bda7d90debdbdfcd1b799ca2113195bc4468c60d54e2105afbd5b. 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/ES5151402655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe213373522d2ff10812d022c8c60cf2252d5092c41d443477125c7b35850aec9. 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/ES5151402658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2c65b8ef5634b02f8c97bc7e2f39b0446effb38285bad60ea3198d121f5fe8. 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/ES5151402660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a132f0a71d36384a049e65d08fcdc9f69ae700354569021e88b78115a3775b2. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/ES5151802178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601695311a50577e989d7f168d7bdcce48b6f7810b25fefdc2b8b965396d9021. 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/ES5151802180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34254d075dfd455af1dec601b86988496ab4585e6ff6c4b72ca4c655dff4fc01. 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/ES5151802181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5335c1cfa8bfb1f5627f6e1ebb8a614d5d2f576a2567996df39e945e0f28c305. 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/ES5151802183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1a237eee76f06959da55aae7fe3c9390952dc6b47bf2fa1e38d9e09e4b687d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES5151802184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c832dde533d67f9aa0873b5fd3e81061f6ae2924eb232bc2403d22ffe4c5b35. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:20:19Z), 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/ES5151802185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a7eae01f772dd192f6b46985d51fa793e6f527610fac07e4a7957707d6c0a8. 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/ES5152000538.