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 0x5a61d524dc76a061fe981b3b63b007b0480261e1d42c6c0469a9bd17170e5317. 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/6b838a8a-1887-456d-a681-b794ffb84298.json and https://artists.proofprofile.net/proofs/artist/6b838a8a-1887-456d-a681-b794ffb84298.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 0xc45e01e25dfc9856d0daaddff9d9214bddba2c3b2702bc39d54802fd438cc3c1. 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/TCADN1834247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4e35ebef844c3de836d002bd8c03e9561a38444b72f3e9c7187d18699b767c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:37:16Z), 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/TCAEA1986443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1e3c9c54a9537c86010a8a68be39da75d3d6db4d3569725112666dd0bd0bec. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:21:15Z), 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/USUYG1348346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cf93a74692694fc4511a01e8caae40d5fa703c1a915d10ae19fbacec2357b5. 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/TCAFX2104601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43edbde37ff182820308f7df1031128b2acd8d5b858e5371c15cfcdb799c674. 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/TCAFX2104606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b90a02fe87e97df870d37fa36645e30261c2be99080018a708709db8fdf3e4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAFX2104625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a5bf2e1ff673a7e60083435d1404103915983d37bef8e4fd2efe31013fb106. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:07:35Z), 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/TCAFX2104634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8135bc0ed06293b310e1c278a0b811cc23854fc1ee65e4ade6c56715ebf5fd21. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAFX2104645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98717cf20c30778b55439dce858a17f2726fe95da12daae131a3ac68fe9ad698. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/TCAFX2104651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0070e6fcdd23863c6028114b26630e759832a426518e8816a92411c0508c2e35. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/TCAFX2104657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d042263680139f4347a38ff1ad02ada88397d04844b4905dd98408fff087ea. 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/GX3Q92060064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e1ce48600cee08ae26d972455ee9a0f7c32d88d1e2b2529c628dbab5972308. 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/GX3Q92060075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7322da7da00a459dbc27ff1b366f05e85148a7e507e8e5a69b5f03f930ab3ced. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GX3Q92060068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352129e427e1a76990dce2de0e3b16c292da7cac6e46af46e6a57905bba70fc9. 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/GX3Q92060070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b97f4f0b66aff90db5d966a310ecfb0e9a3b09ab397a57abfb62f89bff49e8. 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/USUYG1340226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cede958ec571955b925000397e6f7a36fb1b17f695d4f61c3e330b05bd5214. 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/USUYG1340227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4e39c19f9c2ce74f683c36625e47bb488f37e35ee1130c1a6f9ea8566b054a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USUYG1340228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5795024979409e883cefef6da6d689e21b2c4aee2ca2514a01b0013bd48093f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USUYG1340229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb1304ef7db47cd48babf815ae991d504f7be955c93537e535a8d042a1f8ba9. 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/UKXN22208533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783c9b511873ee5640e562da9586c491da0fc17c8dcba84948ed0ef83a21065b. 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/GBLFP2286133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac50f7495c8065dd85ec07678f79eab363a7e39fb4ec87addc02e4a29715f25. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:10:07Z), 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/UKXN22208534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5269dc5686c6332c0e96bda7f0649e2b0a207ad3843908177070525503452d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAGU2321244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582e9eff2862d18850bd98fbfba84d314dc72fd4701fbfba5a2545bbed4c3600. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:03:53Z), 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/TCAGU2321246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b11639ecd3fc89f311cb5b2af9dbdf9aea657a14978a6a0a5634fcbb54d628. 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/TCAGU2321248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e0cc6a548c41ea075a88b3b2bdadb0121400db425879821512129091185029. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:11:32Z), 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/GX53U2614508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda150f97a3ba282063cf8e57f57dba22a9cdda1358c00f5d4bfbf2537ed5d28. 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/QZDA71904258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c60d23f62229a7c2ad6f41ed3049f97900cfbd2c7e240e87bff514edc943a3. 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/GX53U2087370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca7f3577f96e3bfa1e4c2f8257219ab91e3d451730e47c4796c4f0a8a44589d. 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/UKXN22218122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd624af3bef72d2c9ee2f3222027f7eec1acff4450551726bbce867df675616. 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/UKXN22443339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32140267d15368b7e39540db42c5a421a1f42f8b60777d97c228ad1bd6cc2e35. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBLFP1901984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7159f3b7f4e75a0061f80b9fd76284bcaf290466993b90a32d745fdb05b14e. 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/GBMA22315139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496554ad3f0a36a49a4403062c821dd9246f1f3d22c1a092c9d9d07adcf7a76c. 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/UKXN22098462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7732595c8ea4fd4ada9f6a4a4f5c9d61bc9fd1b7ae6ca55127d14f24647069e9. 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/SGB502557358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0070684f10295742ab0a2e96a97c31f54a07b52cce488d08563837b69fc4cb. 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/UKXN22270210.
Line Of Fire, Pt. 6 (feat. J Styles, Streetz, Fatz and Little Torment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaf551117404fcc94ce02ceb454518d523f5e3ca8f997da9cb22b282ae1ff1e. 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/GBAHT2300299.
Line Of Fire Pt. 7 (feat. Streetz, Fatz, Trapstar Toxic & Little Torment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fb03d0e7e948d827d0e63f680e6b53d8c71154d13c25db54a8099fed590f9a. 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/US38Y2304317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490e25cd8d1bbbe695b6286ad4e3ab7219405dad4791a0332b7c0c6b94a3158c. 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/TCACA1441975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5224b005fe90769c4ecddbfa5850ccda03a07fd4f258c5288c21802fd58a698c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBY711310045.
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