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 0x7563aff3739025c6e78b1bbc574e86ba1ba5e173c420c5b929aaf044ac48c35c. 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/84766013-3f8e-44e1-8c60-0769d64b1f47.json and https://artists.proofprofile.net/proofs/artist/84766013-3f8e-44e1-8c60-0769d64b1f47.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 0xf744743fc1abd974164ccc2ca5f9f040b77d854fa4b001c7407041b9f7961171. 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/CA5KR2255371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3e8d99db7019fac6a647c6618881934e65c764bb2cdfa7865b461d035d0e32. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM24S1922224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8428cd8e9e776aaad37328645f435766657c0bcd7165ba3fe117063df03c591d. 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/QM24S1922225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb864ca4082f5dcb5d3aa376d4155c6823a0251a22678ceb988d394f65c2ffce4. 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/QM24S1922226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0881f7feefa2bb6cb82f0c7c08abfeb18032ee5688e58a25abc5cd1738ece668. 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/QM24S1922227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022313737ae6f4b2198afc3df3665105e9d4bd29b74d9d7bf78687f6e6c4bc38. 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/QM24S1922228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de009aaafed3a879f0535b52957199b1938e2766a7e0166d9edab00599bfdc. 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/QM24S1922231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fc37055a9dd9c2264f8b773d67ed5a84b2aed9545bbfc2dcaa0128faa12e69. 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/QM24S1922324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefecd7fa9f1f711a02f4e3b1f52a360e8e972ce30f5a638093086dce2afafe75. 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/USUYG1208279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f4f2a2c5f1f274e68fb81d7aee6c01f35099885614b2f8d7c232676da25b20. 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/USUYG1208278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa300164933898f18efcd13846ad2cac5eeeb8be0766f7190137af568f0587732. 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/USSM11706074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69941bca13793b4f4ab10585f1b39dab52b936459c6eec11c33071f8cbdb7454. 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/USSM11706073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf563ae56aa9b41fcddaf3341bbffed6263c778c19c8dfeb3738fdafba4153fea. 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/USSM11706072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08eca070c485155a42e6bc4f9b82231d6feb92c771d3ebaaffdff24252f92767. 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/USSM11706077.
Bad Tings (feat. Future & Tory Lanez) - Richmix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5319d718e850948e8a69e354b869bf23d8dd6236ac8f73088e992e81df654f. 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/USSM11702264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45ddfe5ac473bd6033860947cf5070ca21dd8a7ffd9e6b9aca7f7be2066ca04. 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/USUYG1106509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdf69990c5e85ad809b95b3d3fa27b8824427e0f746ba9f6575c4239ffccb46. 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/USUYG1080733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0148b63ab4e3553853e096f65b183883acca27e03aa4332890fcca4620b805fc. 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/QMGR32214779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c15f57c2e0d2ad86cc093e88b68a8a9e6ead88e00a09a744bd870ba20d414f. 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/QMEU32019040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505922ce67181b5f0bdf4a12a980e3b9e6df9b0e45c2c15fbdd3b3248b0f0b4d. 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/USSM11807741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7446f2840fe1c86b723c8cab867e5be2008de4a208451efcd81709993773d8cf. 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/USSM11807743.
Move Like the Mob (feat. Young Thug & Lil Durk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fbfa64de121c5f4c7d07791214ac450ecc65a95f1b45ee802a22d2bbf94e77. 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/USSM11609855.