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 0x59191a2305c5568d144884e4ee6d258652f58189ee5a7710e069d91d0080975f. 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/a264a733-052d-4423-8df8-63784b82895b.json and https://artists.proofprofile.net/proofs/artist/a264a733-052d-4423-8df8-63784b82895b.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 0xdad6fe26225e44916cc709a13167eef6cb30ff5c27dd1c6079bb0f17aa7d275c. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZTVM2370251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f9a0dc4aeea988339cfa8f84e3c98f17b914ebe153fcaaa911b86042a50f69. 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/PEEC11703110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a179089b302b2d93028ddbfa4602e2f4eb63961d2f556b60d4e6a96472d8421. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/PEEC11500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48cb66ca27a03c7e5c401cd58e8ad1475e89487123a564ac34e32904c8b3c14. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/PEEC11500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7fbd576c60b781a178b293688d203b42f95129e916610579b5c9022f85a44c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/PEEC11500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa341221947270ac185fc50cc3011497db3b69758eacce5dfbc9469b6cbbec6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/PEEC11500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6eef3dc66cf532815a6aec017ec3aa3577ebfe82b62896b8536695bd7149c9. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/PEEC11901005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2037cc0be24d634614bedd62ddd24b597c50202127075f7f2d14da4bd14feb76. 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/PEEC11500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da5cfb9835fedcc75c055ee747aa02ece4bf6cda58cd80157a184fa6e515462. 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/PEEC11500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1f93e38dd18115afc17f06f91353c5291bf8103513d3d5737baa33198128ed. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/PEEC11901008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5041c485153edb37df8baee3c32036d8794fb3e018b0f56b545e5baa38c13d0e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/PEEC11906306.
El Cartero / Soltero y Feliz / Paga la Cuenta Sin Verguenza - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e6ce6f1627cbd71b21c1aca7db2d7722db7a805de06d2218f5d37075c6e9df. 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/PEEC11907165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789552846a73b98ebf334dcfdd32c20ee0df0c96e020f697e8d09ba19315c91d. 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/PEEC11907168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f775b897723d729809816b72db681d6bfccb08d1fa7b79d6486775ecaeda6b. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/PEEC11907170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a2703123e5cd3e74551a7b7a50c8a01582c21a50a0484aa0a511d7be98478c. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QM6N22084084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7636807188b562ea16e36129b0105eea162d34721bde238c0d6f5d70f77a27b. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZHZ52040698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e98a6998b249236812899933d19f26c5ef0fa2fab73a674dcd6914b52dab7ce. 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/QZNJX2004430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3309a0b07ec897866fb0ea75959fac418076feb9758ea20cad26528639be397. 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/QZNJX2004433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8618f403937bfcd954519cd352fa857c4ef42268baf1dbd5ec29445418072a39. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZNJX2004436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d94001d38c2d86e9ad44ee9df41e5a185689f83bfc765248ccd91fd005aa5d2. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZNJX2004437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5641244c8fe142fc400ef967c751d2a7daa4a0eb8919adb02e448115347ffb. 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/QZNJW2084345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd8b63749e57256c5598d359f6f2e8e600c1bdf1b0b629ffe14ac348afef8de. 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/QZNJW2081916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb270026e590d8d18778c8f8ec212209aeadbd6bac0d645f2549dbb0200ff5c0e. 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/QZNJX2014488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68b0339a913f47533de6f7a778ff5a3598f7404f563a401173856ba95d29486. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QZNJX2014497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b98e5db5321a2a19915763e3f2a0414d4c69443221e4f41a8391d793446af67. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZNJX2028017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff8c0601765bb56105ce2f9b7835887bdc6027ca00138f32fd454bb6e8380ce. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZNJX2021400.
Que Sufra, Que Chupe y Que Llore - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d66f9d8d30e9de9cd922060ec3903395c907588444b69f4517886f161b2920. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZ5AB2119040.
Soy Muchacho Provinciano / Ven Mi Amor / Ese Amargo Amor / Viento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6aa810eaea3dfe1a0b4d8c94d6cee08fce3366aea2b5946df602e8eaf7891d7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZMZ92105020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c26751e6a4bc9986cdc167610776497729a1de98c84f439925b24d654cb91fd. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZHZ42258661.
Mix Selva: Isla Bonita / Gata Bajo la Lluvia / Mal Amor (En Vivo)
Domingos de Fiesta en Concierto (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe74deea815dd43d559d08f16a7756453c5febff07fdc0eac2a37a82f49cf75c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZHZ62213101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f708782434665789200aaf2d3b1d5d739ad0dba475de5e0a1b421b97913038. 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/US7VG2397245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c71f667d59010106c07f7ffd7d9f101486d48e695340e3d1efac26ea19b4497. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZGLM2322184.
Mix Bombazos: Pienso en Ti / Quieres Verme Llorar / Te Espero en el Cielo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a85bf68c73206eb87ec315eb2db0e7b61e3ee0b49c1d271f1e09c5e4c49566. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZ5AB2454466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7687cd119cece56d835d1f5420c07e240fd816f953c36d17864835215c96b39d. 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/QZTVM2464031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcf8b84eedbbdb9eff60392d64b0a3c54569003bac4218bf1eed301a517ffa1. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZW9K2481404.
Mix Selva 2: No Me Queda Más / Por Qué Será / Por Qué Te Vas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2ea029056517a9957ceaad4617108faa08af5238a6b4cadf76d9d6d696a23e. 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/QZNJW2564036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ab42902c72fd413bfc9a8c21bb786073a59fd5d43d6eb8dd7221d389d3214e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZNJZ2596129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ca622111bcd5683cc5b696450fa214f19999bcb362a29d70a89e24f0a2c7e5. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZNJZ2596126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd41cc03ee7d4deedda8f45c2dba06b4f8d25b5994b82c3cb056a2969b39ce12. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QZTPX2578694.
Mix Se Fue: Se Fue / La Soledad (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5a0714afc11909cccc7b6388dbc7c3573761ec8dabf17ea02cd287ef2b62e0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZW9L2441222.