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 0x3a771099ca79c0696a88847e1499b2f31bdaeb89a13150302100478e343e0cb9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca606a20-5fe5-4412-a158-d8118520f5e8.json and https://artists.proofprofile.net/proofs/artist/ca606a20-5fe5-4412-a158-d8118520f5e8.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 0x8bf7883afc440ff93c4732f3efbb5e823fdd72f58b76c82c13e6d54fe3cf9233. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEH741111512.
Mochacho & Chicacabra - Mollono.Bass Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3504543756276d30551d66fc8ff27ebaa795606dc699efb185ddedfdcd0fee4c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DECH61200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749ff3df73143f82e6ac67edbc81b693ee247c56537eea601c056e86d6bec791. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:07:14Z), 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/DECH61300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0f01d965865111d8881cc18ee7546937b56305ae38273518a7692b83a93997. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DEH741908088.
Just Wanna Dance (Digitale Analogik Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b3a2fa820c832a69f46ca723aaa0b8aa5897acb8e4dec88e129b5943750b78. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:47Z), 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/DEH742047838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba703f765435621e89d4f9323771398a1a19e051233c6363648060c27a1e4bdd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEH742209864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2368447b409659a6601ff5ce805501fd5077cbd18382f892f20c12f77c716eba. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/DEH742213547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e653ffd3025c185b150188020809c8f6707bbd9267212b75c6d0f629a42974. 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/DEH742220651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd810f9ab602804e6206a1f52e37523de4575714056d194e067f7b2362ad637b. 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/DEH742229466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9824d5e083430a90adca37d02838fe984a0d3beaa140ae6026d6551708820bc8. 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/DEH742300257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0afb22dd1976bddfecbb2c55d8ff0d2458a77cf0b548238192ceaa0561d518. 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/DEH742301194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0381f7edc12c4c80f85df1ad46b4324a8bdaa1ee2670568b872f6f95b0624dc6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:10:09Z), 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/DEH742301861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85828a72a1ea9c3d9ac0c6b1f2426014841f2f79daa9c52fd66626fefea19d8a. 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/DEH742308384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4ec4d17dd2fd4861e3bb67f8b43827a568840483b918e60acd534e78d8aa0d. 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/DEH742308569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e4142bd25f27bc503d5dabd438c502ebc1b119c24f7afecde39abaa59ec860. 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/DEH742309219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6049ea0a16af37eb6be110dabfcbe7aad5a6599efca4f2dbc4888b9ec47419d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DEH742313366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6a534dda3874abf2ee9f4b2809229a6e13c1700cff026031a08684406f5cd1. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DEH742313805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c3a818ec7995cd628e983d9aa6b6354c36f3fb27654ce2c263630e442f9a41. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/DEH742323382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b10cf654b739864f17f298422f5630bb71ffeb1ec344351a5769f7c3e592f67. 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/DEH742328906.
Goodbye (Murmur Tooth & Lars Moston Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb57c5bc3693ffe0365c574a9180312e0275ef5d728220951a85f14cde7b56d. 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/DEH742332340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46950c9e75bfca558e8e569d8a42a62f37ab3bcc8bf09ae695fe24973915139. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEH742335228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74200579bc2f6f66b4fde3ff79fb21e7462c117f812328ac6fac9d3f29340456. 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/DEH742401942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9158d07cb5af5256abd0bdecfc26a7c11ff32772fd7edcc2a3fd9f66e2aa9a. 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/DEH742401943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1b11cb7585f2cdd1dfb799e9cc8552e1d4c27b8dd7ffdc61e5c09d40e1c4e8. 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/DEH742403015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10966a17debce1172b3fa920a079280dde4c182767d2573693c475929c0fefd1. 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/DEH742403723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe1e12708eb9da0d8f8fc222c41324cc0fba1e44b6b09b205fe284d92805947. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:33Z), 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/DEH742405300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a3c790f9e6ac49e08e17bf42d04d94a130681f10fd0d3c80643e7d40b204bc. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEH742409304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb084739b93c77a37fff9197da0eee98b8dd22284232d5ec1d9d6fc60b4835d06. 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/DEH742414723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a1790228b5761a03a7b7cb20760954ba008aaaed1f936802999555edeb55c6. 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/DEWM92201027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02e60c44d5338a8f42fccb91a65ddfc693ddedf8c26a2a36f8aa4a7182cc5fd. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEH742428855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623a3fc772db6dee03bdd86bf27cfa1073ee403df4cb9c01c755092e8e7de670. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEH742428856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfd5be1add9b22832ff2ccb289ac7ac0ab3c405009aefa75e0bea82b9788168. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:22:14Z), 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/DEH742431081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67078ebe8f50ea0d9e588badec794f93917afde2a10a23bbd9ef7cd8424a49b. 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/DEH742435365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc450117806757122da20e09e4540249587c1bf12e52b83aba8ea988f5700a25b. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:13:41Z), 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/DEH742435366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350552e14b02e3597c71362df731dc2006427a96de0c4fa95d1181dd37e0a2db. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:28:55Z), 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/DEH742437544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93412363ee3ee73b0f76ddb5811c8bbf598a09f45023f2563f6c481574a6e0d7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEH742009674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f8b85498793966081616a862838939354f7ee2765c7f1fdd2858f9f4306349. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEH742002552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698299d67b6a477a920a50b3a761d914e2b2ba14d99d1d5f1175ce73e1b91711. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEH741911408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ee9a387c9ac8210ecc06b0db07ec9a18b088c7c1e45751c61ae75f837867a7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEH742327507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe867c38bed63bffbfcbf6e106147b9bf5a16b040587741833638418c4666fa64. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEH742303884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a020336210d10db193fd6b6905e3a130fb24126ffc3685c972f59919ac907b6. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DERN42100113.
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