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 0x712520ec3dc80c682b0009c040eeb6f7eafaff61965cf89edbfc7f666035ff07. 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/365b4564-3576-4453-afde-03730767335d.json and https://artists.proofprofile.net/proofs/artist/365b4564-3576-4453-afde-03730767335d.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 0x025bc05d9d7c08171abca62bdcfe6791f222fb81893c6522b9ace00f1d505230. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ESA012287352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecd45c9772316c42b9e3cbb4b8d944a0f08850130ea6730618224c34ef8f763. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ESA012245005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8efeb4efd57c5d5ea1335673774a0cdda15dda9de8748c5866eaf6aacac49d. 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/ESA012245006.
Mix Primerísima: Te Alejas / Amor Ausente / Viento / Por Dinero o por Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53739bf40b1f8c314fe6dfa58fd7244fef50625fe805312cf94de103558cca0e. 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/ESA012298321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360b2ebabfdd4b1a0e9d53ce4512acfbbae96d8b325e2446e33830955b1b399d. 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/QZNW72221603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f6e0ab1a3c047a979f9336a1a2951914d654a43b9703b75fc7fe25d761a414. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNW72221599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728c5079d6dd34eb01b55309a3eafdef8f6b68a107e37cf3325e44ed97c0c339. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:45:56Z), 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/QZNW72350198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c5c80d5202468cd9e71be677a1c6f0fa2b39f14e71cf571dc0e8a253c739f9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNW72350208.
Quise Morir / Hasta las 6 de la Mañana - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803bfe8811377ecbe8d8762bb8d0d96b227c0e8c2f917b0fd1337ed4678ac3ed. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNW72350216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d62abb4c62cde8e988f57db8a8c0e1e4a98704230316d94755384140bfbff2. 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/QZNW72350217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ef9e5a0726e78010cd88f577c75bc38084e1656b4db38e863666650a28e44d. 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/QZNW72350218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed21b92ce402a5e0be1f55d5b97b6c96a516a416592a90418ead9e17eba788a. 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/QZNW72350222.
Herido Corazón / Lagrimitay Cervecitay / Me Emborracho por tu Amor - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0ca1417b907e6c8c9d0e58994a1c0c5e74b935ea086bd14d806ca30259c4b9. 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/QZNW72350281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffc2e5d69377bc17f779417934d92f8bd3ad245acc578fa756139567d5d9bac. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:17:34Z), 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/QZNW72350282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed0cc2b684d7d1ad23b1185c5c2e71a73ddc5c96ac91ccf0e9e23f2de961be2. 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/QZNW72350287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c56700f86e188dbdd569376d4036b8d4949d3c245e3b113336746fe753e5fb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNW72350294.
Mix Real Master: Sin Ti / Días Felices - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7dfe3a9beebb8ae9e6bf062858ceded9e52f8acd8cf8582551b0fe18ded905. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZZ972473969.
Parranda 9: Fresa Salvaje / Con Razón o Sin Razón / Quieres Ser Mi Amante / Algo de Mí / Melina / Jamás - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ac558b6204ff49e515a48e0ef763128b283fe70f7294f45edec5ffe16ac19a. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZZ972473976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55e8c31570aeca51765feb32b7b2fe0ff2d78ae459265b3ab640171ead6c1d8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZXLZ2405892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0170ad57648a39ba8d712b8586a2a9b4e1bdb81bfb660ebb02eb1baeedef3278. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:29:01Z), 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/QZXLZ2503063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab02d08ef37435eab59a09766ef2588f131503022c4c51b61ac91928b10f99ac. 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/QZXLZ2404100.