1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6702153ec7bdf4262aa0d71be9874135ca52d54c6ce6e2c28374fafade689db4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe09c6c7-c10c-486c-b4e9-9f65c33f8bc8.json and https://artists.proofprofile.net/proofs/artist/fe09c6c7-c10c-486c-b4e9-9f65c33f8bc8.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 → block OTSBitcoinBlock must exist at that height 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 0xa051172a05074e60cb3d75c1cf822790bff7ccb3eafd60953eb5291f6236b47f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/MYFR11413177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a22a5154a0f00303b8f592ab4eaa84603ca39ad255c0bdf5594148f9efec986. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYFR11413182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1615737ab544baa06a71633d63fc03d4e0f1939c9f9479b3e3cfa4a97d4df3b9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYFR11411778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4ccf070188001b7f5998651fb91a8697f9e06e353a4a3c8e7c43cdc16b2655. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYFR11411780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa554cdc0e405670cae33faab3470c4c98d4a9683bb8b2647f0fbac2fef5f43b7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYFR11411783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827281717c082d6478d63641e73c139452eac6f40de6dd104a41123f55519ff6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYFR11411784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd71c4aa495d8854f92165a0699b81a21c3c7c7540e99513763b4fe93c8dc68. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYFR11411793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3934174ceabc9c21ddfc66c1a8ca25ba2834a55e0cd94e75008507fee000fd6d. 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/MYFR11413149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d193b654e06d8c9b2c0f6847a3b05fb12e546eef6267950d6a25a4e570c4a2a. 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/MYFR11413152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269c8e8004d5c69212914e7d953d05fb936cbb317c2ef0503c15a5ee30581128. Chain 2 (Bitcoin): anchored in block 957244 (2026-07-09T01:44:02Z), 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/MYFR11413154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994b7ac369a23c6ada02521c18e9358a4a98a1087fa305e38d4a34f515824a15. 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/MYFR11413155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff638f861ea7a430a6be43d57193ce207f413889ea4496fd7a642f60d2c2b3a. 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/MYFR11413156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e504a3137ab8d192d0df93056ea4f0eba01fd4b8c5d588cb778a0b9a7868439. 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/MYFR11413160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a36d21438734bc6f8d9f87881a2620bce6f3820e6f058ae68630a011e8364d5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYFR11413161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337e74c4006341e422f0e4e255cf9104d583f3f041cf50c3000760215747e7df. 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/MYFR11413162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cc6978cc01dbcd464210175d352c974b979eaf1ff16d54449474ab292e8cb5. 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/MYFR11413164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2e42a0831f85f1d6214ddcc4fb7a64fdf9ef3787383b5a17b7ef9fa01b6a3d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYFR11413169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56e81ad6d93ae57cdc60ac2f1c67a0e5e1e6667b8aa0daf67a1ac7fcde34d77. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWAN78060278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f3ec0e0bd6d0daefbb035b47110969f4ace0a05b9615a7054a95812a549547. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWAN78060279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464dec09b0e332f073bc13a8bbd8e49179d0e6a5d29f25c85b0c10fa63ad1cb0. 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/TWAN78060280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77efb335e7fc1828b3be6cb43e5ee6d37c29df4a0021922e06f2d133f785d9ee. 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/TWAN78060281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153dff976cc3af8b3853ec60b29c5262da498b81bf0c95516412b2bdd45de031. 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/TWAN78060282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6a4b560a1fe2fe097090f782373709ab94a3a35d9a3891483817e5efb3a5c7. 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/TWAN78060283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bf804b3ebe223b57361f59a47d0d42750ac1845a127586583a249e403b24b6. 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/TWAN78060284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3405d8519ada50e99d5ae673091fe1b36ca38d908fd5dab9d8f4dc0462d7c10a. 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/TWAN78060285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7871f3e95684016ba9342300eef8ce76f4a65646920bbeb7dfc4840bea6e118d. 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/TWAN78060286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02971eb980105bbf4308267e12686cbbffba9fac76cead5920fbe529b3403f0. 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/TWAN78060287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf06fbe2d44f32c6ec46bc4dff4f04be50908d8df1d4ae282d5d1e60ab330c74. 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/TWAN78060288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e651bf9ddcb3774d0a67542b312687cac39ca113fd12c69fd242c8bf452784. 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/TWAN78060289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012be9124ba25abf4a0ff607bbd520e0a66a7831353dff8c06dd185f0f646bdd. 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/TWAN78060290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b429d9e14ba32a7823b96311004206ad2fa593ee15810d2ffbcb594166fc8ef. 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/TWAN78060291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47efe2091b7d4b5d70fd98d53b0e85ea61732c0d7420e39a26ac0d72b11ba48. 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/TWAN78060292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5768f36ad49720411dc498aaf122edb653cd607f14343fbd7f54abe8c9efbd7. 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/TWAN78060293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26ec2a4e5d91c1bddb48df3f30817f1d3beba53769fbb6c74f65b482ce7b6f8. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/TWAN78060294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b1b4c33f8d2980a66a902e00bf56ebfba30c3b4a7eb20ff918d4caabacf5e4. 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/TWAN78060295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7d23f50b7435acee37d50dce4b51d164ed6f0d5bba7db8331d69defa2b2393. 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/TWAN78060296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2110f7c3d048dc5372faa70b5802a368f527bc0a38a77c7961d0d1a15c51240c. 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/TWAN78060297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee70b4cb149547459ed114192ea583c2e5ed559c9456658631b4fc49d03daab. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:24:37Z), 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/TWAN78060298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87089d33ac0dba0c2afc72d5cf882ec5df63c37a3ea07c15482b26a643c46bf. 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/TWAN78060299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df9d63f8f64880aa9d1be7841bfde4fc58dff4d0a94170ff7f446e4ef0e1316. 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/TWAN78060300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fb545e5a609ec1450236e1f766e6fe25e10c8dad53adf85e1460a784a60c5c. 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/TWAN78060301.