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 0xf3c061ba8be277924ea500f82ad50f19496b2ca21156a4d8a48259ab1fa33d26. 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/e32e51ef-a137-4a68-a4e0-4fbb12caeaa9.json and https://artists.proofprofile.net/proofs/artist/e32e51ef-a137-4a68-a4e0-4fbb12caeaa9.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 0x26d2cd96cbf842b806920779a703fb315e97f5e97b2cc193756577b1b7b7f2f3. 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/USLZ41010252.
Ass 'N' Titties - Signal Drivers Re-Rub Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567a778261ee349580982200cdfa1215795c900ca8a4228850cbc48c2e403903. 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/USLZ41010253.
Get Wild Off This - feat. Big Daddy Kane
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca29f4c62d82ebe71a73960b4a6496d85b0e8c94ce1ee2f0b839f33b720dfa4. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USLZ41010254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1236d073c60d2251c509d956d03281c221df2cdbc73b6c97cebd1b3700250ad. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USLZ41010255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa089f23cf9879ccc62b6c6eb078c8818f2eb9ce87647e8dcb4dd7eb82892cd6e. 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/USLZ41010256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e165758880326f815abfb3acb6651d284d10a9751a755424e3feaec932bfff. 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/USLZ41010257.
Do What You Want - Deekline & Ed Solo feat. Yo Magesty Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7867e053c70c21df57d288300d2ecfe485b4fa44a19f6659196f51b4553fae. 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/USLZ41010258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5fb67681f6312a461b42f04255c922f8ecee17d0852cc5758eef738fa00d92. 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/USLZ41010259.
Make Your Girl Feel The Bass - feat. DJ Assault
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883b1cda882eb958d78a6fc5dcea27171df1434def29ff953750ccfee2f481db. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USLZ41010263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93018ec9d1cf8f093414978353b5e7aaabd70dad787fbb84a766b4c1ce278b8a. 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/USLZ41010265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d717a1c36a2e5e2b1b705499f4ead07172bbc5f5f4c4b3599c1f61c0288b7a1. 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/USLZ41010267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceea29938666218ea5fbb826ca4da66e2b305eccbe2bd22b9e3dc9b84c0a8c7e. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USLZ41010268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d065b1655ea1b1aaa4e02489f5a6750a7cc96b7762214130d2da482258daf87. 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/USLZ41010270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481581f7df94e44c148ba3c855a551d0ab9ba670b73550a214214dcbf8ec910b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USLZ41010273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8a49a3d402cb6857f9fb97a28b07983e5551bf46cbc242ecf3daa6684fc902. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USLZ41010274.
Big Booty Girls / Ready For The Burn VIP Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db0d5afe54bdb6cb690e690ee82bff95127403fbcd5b5bb25dd98073aec7288. 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/USPUX1201041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6189f16686057735d5d012febfc6b40cea0d88e7925bd663a0582360653148. 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/USPUX1201491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1d7d61622cce1af3ac4b2f9b3d91bcfec050047983315f20a9d99cd9af9518. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/USPUX1201631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d9baa7e8c2787e3e907780c7faf84513e7f519645ea0c96a9ebef7f67a33f3. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USPUX1201761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf229c50d0865c25a8bf99e445813b05e485cd479960b6eb2e50cd35ad71397c7. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US3GD4510861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019b890b67cb75ee1e4666948a61eacff6d65f50e419247a8adba5e2a2827fcb. 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/GBRKQ2316524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa239ed1bbe46b6936360d0a24fe7252da69dea4423184479ac2faa65b87bae97. 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/GBRKQ2316528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd42cf2d144a12c582b38452d6c1c681fe440e28a94d914879f09dacf87262c9. 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/GBKQU2424224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc839e493147c82f3abf9e954d6ec527c1efcc2c95e1577465b87e757998e483. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GBKQU2454739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca8b0e5d951bffe76e2c777bbe4276ad7b9615234e379ec9c0425415022b7d3. 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/USPUX1201921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5ec5a9fea0f844f066a67fc189cf99fab4f2537cc6152bd1442a226756e0d1. 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/QZZEB2430182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373d2944faed7b17528acf2b6c6e99e2ebcb67edcd390bc76d6b29b054d21858. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/GBFG92500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347f5586c755ca3b4bd0b3221f69103ab8ba2bd16c9adf1a9fe4180418b2c4e6. 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/GBKQU2584925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57b60d38a0ade1bd7b60fdebb7b341a7e4e7378d22b9c6d70939ff7cd1fda51. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBKQU2579376.
Ready for Your Love - Keith Mackenzie & DJ Fixx Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bc31586600335aaae0b7aeeb30f4de00ea312dcb340c894c840fa8358c4748. 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/GBFNF0900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6da5b260ec0e2501284c46cc8fafc2e2dfec3e057169fcd686710a0dca6f8af. 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/QZ5FN2254154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedcf01bcbb798626ee1a207de103e303929a9e65c4e4fda773344af8c8984f6. 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/GBFG91512626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22b8068c68dbc65b457c0172901ac8eb4237babd7ea5348d01898a241c97ffa. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBFG91512628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a31b603a64129eaf8872d35e6742a8ac2a7c8a43ccf997962dc1cc8984b279. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USPUX1201651.