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 0x9993da4c5630c650285a54cab26a2ba1ebc70ca60719f0554a95da53f710b7af. 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/f84a594f-e462-4fc5-bfbd-c79fe2eecffd.json and https://artists.proofprofile.net/proofs/artist/f84a594f-e462-4fc5-bfbd-c79fe2eecffd.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 0xf602d069026b7b93f3fd919dcb70b069cb2d006c06a53197b1c7ae42ba00c6b2. 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/FR10S1708568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef5d65bfb59d44f2eda0af23fddec78f4328ae06de6d100a8b78a8daf0467eb. 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/FR10S1708569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6f866a6a59e5b3bf2b2cd9251f32d20ddf59b46bd23dc76929df04ec6c6058. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S1708570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a2081bd0256c111f90b6f5e002730a8f70cd177fb3021e6bbc15258f01dc40. 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/FR10S1708571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93e62f58a1bdcb38248a2e41f2e6c16a5fe381bac5ccba1f4793a0e4781a566. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR10S1708572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd838916c56da281bb72f0a6d34b68bebd9aa5d402719c72825bad64e337252. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR10S1708573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f8d27050ffa1fb39f4d0b1a723e3f1fd400ed9d73ff8c31f7ce3bb7c48d9c9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR10S1708574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce252de384d51d6b35130fe464403d96b060f8ad46e40373936cbee4d051ad9e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR10S1708575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f043abc67b9e6ea3dfa9bf9dcebde9bab82054ec6442fecf00425599510a77b. 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/FR10S1708576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c204bad61d343badb2d78ff6113a44ef3b0d92067606c9fadf0cd5b8dd9531. 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/FR10S1708577.
Rudy Habibie (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebde51847719ea909ecec19172c316ff92cf05bf565e05b8ea17bc58ca4a75f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR59R1651497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deed5b9050e8ae74669b96e7d97e6df4714e821c0681243663fe6019dbf8fa8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR59R1651499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f740ed28cb61a52d68dc291f975f69d3357bb4b8bced8fd37afd96e4d7ce6e. 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/GBLV61407536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd842c3d204409d07df7237f721fb7f05a9d6caf743f641dc2f275dea5673a471. 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/GBKQU1681714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1a33ffc7936ec825679041e0c8680fccae06a6d07f606c8bd12cb7d0ffd2ca. 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/FR10S1478098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9004183d2a9545831660a85ae9820ff4947b7c66912e457153ecfe01aaa30e. 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/FR10S1478099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9f5763b644cc723f533f508788297203457d3e8c0a1834aa23ff906f967ee6. 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/FR10S1478100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e007b616d60fe22daf758d65a7ddc9706e54ebda7b7fb39ba7bd5de497c4a8. 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/FR10S1478101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac07db2d404891620054ad6cb48aa01990283936df4c9b3871dbf075957255d1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR10S1478102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9705717adec5ecac3dc5633a37d78d07ff7e27c70f539df6fb88ea4dd3cb4747. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR10S1478103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5135857d2602d13ffb38ecece26dbcd72f092a82abf4ec507fc4a12b24dc14. 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/FR10S1478104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7272345db89d959e55cd005850a1c2610c12a9d354a5927a6e98d0da1330d51. 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/FR10S1478105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa630aae383fe75eaf3c2d07c21af416597ce0d5fec9612ccc25d18f0915cdaa0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S1478106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15ff6f497aea097a5569f98c3bcc7d633d25ac21282f0d79287d8bb7704a7ae. 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/FR10S1478107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143204e02aa87e91dea09bef344d85f039fb81be799a82cd3fb02add8eff889a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S1478108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3fe4f626bbcb9adf673593092ffdadfe9b0ab9d9267576c3eed309beb6a41c. 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/FR10S1478109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9061648c1ee8fe51dda68edd650183902964f2b676f8b4b6c3f6312970873e53. 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/FR10S1478110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69be412d0a3bec5d03691d06d2aab13046773d959d3d6f0a64d0d65e3db05261. 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/FR10S1478111.
Ada Cinta Di SMA (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03351ae9d138b31d3326e5148cc59e2701ff638b2966e4248afc65f4e6d5c718. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR96X1603229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63692f7ff62abf6037795fdfa45f52609dd94d1ff2fc13e8fbe378fc493a1b6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR96X1603230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0560bbe97d372d342fae8d6dbb218f22f941bc5161cc3847b6a15fe2203da9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR96X1603231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f20a77574bfbd97aa241ba5286ed1b66e07de0767977b360cf1d416a754901. 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/FR96X1603232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffc1858a02b69c3d1c27b3821e912ff5026e2a19aee8e6219546dd0387026d4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR96X1603233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe607872ea68ef138a77491b56b67c0e73dc59152b9992c82ddd74b59c7b96030. 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/FR96X1603234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fbd90d6255dca9433a52db2eca64363df5703f87533146aa94eedbbc37aae2. 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/FR96X1603235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf087e70aac81f1d368cafbaf7b74924c778c33e86c86415b5ede71c33889ddd. 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/FR96X1603236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2ca5d3bcd045698bbe2a58cb75c68ff8aed962f8d83c0ce86ed4a02ed457e6. 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/FR96X1603237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef382c58761889f621a6aa7e81386afc07ba20c9902fae2df85f9e0ea8eac843. 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/FR96X1603238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8d49e864717f08688f8a44b86dfda5fd73c7bb36226e7e94c59d60aa6efb08. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBKQU1511842.
Fires In The Sky - Fracus & Darwin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5c8e4498817f4cd2f5ab2317d012ae6ef95b5c342e274852c514c1edcff723. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBKQU1511848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ee6dc05a8c51f51a06f2b3449a5632070d6aeb2268576ed1c613c912fe680a. 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/GBKQU1511851.