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 0x003d993778c28f9e75cc6d1c92e511797fcde8a9477da1282ee9459d4474b23e. 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/467ab355-a535-481e-bd93-9486076ef31c.json and https://artists.proofprofile.net/proofs/artist/467ab355-a535-481e-bd93-9486076ef31c.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 0x71336dd3ef74bab82a7e83ec36f40dadfab965e34c3e3626753412ef42a70651. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TRAAA0600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38526d3347b3a7b611eba06f0645bcf5788daea78403c31ca8e78bd16b1eb3e7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TRAAA0600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee2b63b7728f02125e1d7dd1b3ee69ef1ca48a65382d6354154bc6aca85dd26. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TRAAA0600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85acb5f5773bd7791c53dae33a652f270e3cce5d50bb36a37549a51155c47a00. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/TRAAA0600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc69318ee5fb2419581f3d369a8731c6fa40103a39e76ba5533b603021f89249. 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/TRAAA0800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dc1e926177e9909f9547379307051b8e1869a05d19d6ec5530d11829936292. 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/TRAAA1200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08d350085b17efe86c3632e260f2f76733fc3cf17aa743fdcbb380063791079. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/TRAAA1200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71336dd3ef74bab82a7e83ec36f40dadfab965e34c3e3626753412ef42a70651. 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/TRAAA0600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ab686c749d840e2651e0448f1cac275a0fc7e3f6d29f51c9502d09a359341f. 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/TRAAA1200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80319d4015888ded60f101fcb2b1ecde0a1672981203d5b684e136588f9b9a8. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TRAAA1200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e93d14455ff543c44cd5fcf3919f9fe2aeb60b434b16dbc290af27706e7dd7d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TRAAA1200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcab0a029bc32692baec80e1b2792ffd06e4894e9d3f565209d808a5f975424d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/TRAAA1200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc69318ee5fb2419581f3d369a8731c6fa40103a39e76ba5533b603021f89249. 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/TRAAA0800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc904494b3671e0ad8742baebcd54b286fb61f047d9101e4372854e6bc7460167. 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/TRAAA1200155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb64f1daabfa6623d3f0567a31ce5c650e80638ca165a9e780b0622cb546bf52. 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/TRAAA1200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2863848045eb42bc187fc6e4e7d18c8c9764e6f372c7bee72e48dd8a29e73840. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/TRAAA1200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2e39f91068882e912d3e416cadfa9d222b1fc5245a9903bdfa08d8aa1df4ea. 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/TRAAA1200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4ddfa04b5fa49ed5d8ab28c0ff8cb057ee78f389fe2466166472b01b4cd0fc. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/TRAAA1200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd67356dec7df13dab1c1b9eda34ce65f51d27a28e28edbf0df10de2e240bf3. 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/TRAAA1200166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c48b406041b324b1b720669cfb9ea269a346f043528a3f0173e60f98d6d086. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TRAAA1200169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa512cf9f463889f79bc6aa4997216242377491896a49026c74190468ce7d36e0. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/TRAAA1200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecc7454ecc05487429f99ab30826fe410940b94fc444bd0943dc37f3dc4bc74. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TRAAA1200171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81c221813b83a1691bbece58466a5366eb09d8cd9b2de5d0571b699107652cb. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TRAAA1200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edc1ac805da99a2b4716963008d2d6a9ad625060db1167acbbc7837613010de. 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/TRAAA1200173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e28f38c5c2f8492b6d07d816e223521c3be8bf67055d3db6122c710fdd1e6a. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/TRAAA1200175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe329bcbbaeb97c39137bc84ff31e03399952912faa1e3c385bcc62ae4e84d3. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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/TRAAA1200177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6530e80ffdd8318ce9e243818b4395462646fa714008f59f23c7677f4e716ed7. 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/TRAAA1200178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa44b514f56f1621ec816bdfc604915a31cfb72f413bec809c58383766224976. 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/TR3721600198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afe3cf9439ee1357f7af628714fa403bcc45c1377f441907a70b91e9c0ad01e. 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/TR3721300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9c719f9211d208418401afb4d3a2c75959f4013cc813cb46302503f28d9446. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TR3721600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c29c973d90c5929068e4d604ab66c2fa850049e69ef5b14dbf12017895472b. 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/TR3721800221.
Omer - Sueños Robados (Banda Sonora Original)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa705f3cbe55eaab79dccaae184b70daada6c9be910cf60bc2d6a7856efd4c23b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/TR3722000418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b63de21d55b1f2026a5f7cd70fe742254846944fae3e5795ab02dc69d74c59. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/TR3722200565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487aa246d768cc53fed356c565711c2f902b4b82a34a29d16df8db2e0483b56c. 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/TR3722200579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676e9646a07f295983116f195bb9cb676da6fc15e41ea86677d27279f6188671. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/TR3722200601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fcd8e28e098e1c26a88d847340f3aedc7c3bf0b6b851ac402ac3b5f925d247. 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/TR3722500744.
Nobody Told Me (from Pluribus Original Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeae857b76ee01bc70e18a71272d872c64c0674983b2d980c956f7e461409558. 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/TR0061400035.