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 0x7a16dc6fc13858c45acd05e9df1e8a11d4c014db7d0912670f9b3984043e4d69. 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/fe1b2935-ae0b-48ff-b196-a8832244eb17.json and https://artists.proofprofile.net/proofs/artist/fe1b2935-ae0b-48ff-b196-a8832244eb17.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 0x22c5164ade960e0d849400a5fcfb57d4184e589d7d1a1a23d803095860f2ac38. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:42:18Z), 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/QZHN82362245.
SHAKE WHAT YA MAMA GAVE YA (JERSEY CLUB)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cdbdf22a15ed814b5b67e7fbd560093e50bed001b3ab4854087ec6e79d0dbc. 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/QZWFK2349152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5e2eda33642f11bd622c53610a36c38863734722506f8d4a21be5c7fef58f8. 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/QZHN82400312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b5c95422f287b4173b608e79b9a78ef10c57f0071d432017cd7aa80b68c7bd. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZHNC2410373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d460e0bbc087f89952cc3175a59ee330844f38c082c10d2a1c09b274b0ece66. 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/QZNWX2410699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28162eff08d466eecc173bac944348c0950d1baed3d05fd23acd827ed6c0c259. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:18:20Z), 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/QZTAW2444250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58185a585811ca1c7a473665464772e4be06102a3b55ebdaa6499c427a6bf6e. 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/QZHNB2585454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d74f79be6f4eeeb8e564cbc79907f2d2d66004d6b0988f52391c177223029a0. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZWFF2452939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed4b031374c0a515d18e111830228b0e9b26a83ed93313b1f7d92d8f2b6ca7d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZWFP2473746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94575fe965ae067a58e98034d7e1a0a93dc592e2fc165ae27959ce33423385d9. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZES72563806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d52c64d78a67de297f45f53025dbb67f4f4af0fa3a03d21382b521b4e459ad. 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/QZHNB2558881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57694b414847635d341b9f6dbdc5cb74a3ea2d2e79bbcb360abdba7c8e941337. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:25:02Z), 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/QZK6N2555337.