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 0x90189e26a165c1b409868c6d237c3e2aaf338f5f92f91ef5508d1939c1611d90. 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/b075ac8a-6a73-4ff8-9759-7ace09f08071.json and https://artists.proofprofile.net/proofs/artist/b075ac8a-6a73-4ff8-9759-7ace09f08071.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anomaly (Original Motion Picture Soundtrack)
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 0x4b35d0222b60e74d14af21a24fb4c0c3147d3756b62031595f09bc84618a0df4. 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/TCACL1506691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776782f7adb807688b2e1942dcea0c67590312f7116ab50a6e6f5a7085307589. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCACL1506692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8e863802f16f0945de5877a1cea954ab2bcc9f0edac7e8e1b277b25d9f245d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:25:58Z), 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/TCACL1506694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe73f4006f138d488e81ed2080867aef0884465d03db62fb26bc6243324546e. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:40:50Z), 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/TCACL1506695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb466be3f72c20cace4b2f3be4a715cb7ace45a232afa17b4b8f6f8186302260. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCACL1506700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874d9c50451e7e59db051880818fa366dcee78e5295015f6705c6e48834a3bac. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:35:47Z), 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/TCACL1506703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509fe8f51b845e87a11abb192a6d736407f323255cc36273a0af1f1459471ea5. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TCACL1506708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385a63d9c0a941c341e5ab97ce0ffd1ff88cf5507097a7ecdc85aca21209b853. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCACL1506710.
Score: A Film Music Documentary (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64444eeece654327331ce150e9294096ec218a1ce13c3666f2a68f8229545430. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCADA1775371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea041e17c35e0601d0f6e8845095846b73430ef6bc44d9a4fb1d81afc6bdfb78. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCADA1775373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253b002296ac1c45b61b04e0e4a201877c06fda833ae603ccdb9f376a740ba88. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCADA1775374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd372d8fdc8ef2a510fa15b5481bb87a8bee66a92ffe57b51a41c9cc1d3f62f9f. 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/TCADJ1791650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0d9c0edb8232236228c0c8ded17420909e8160a2a24b5294c11a0884de6d8c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:52:14Z), 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/TCADJ1791654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc817007c853d8f1177794f6b512967df642857043ba2b2568b6da8e05c6710a. 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/QM8DG1801786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2252c7cffbde319050d69b844a64c95ae857babf35bf8dcc3947020b13c72df4. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QM8DG1801787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa422a545021b6daf9b9401b4ec361adcf9e5f72e899a842f09835e31f3b1b22b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QM8DG1801782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a5b90be05cbf3e95f513afb266762d4fe3fedf83447c7892f8145489662239. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM8DG1801785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941470b8f04163fc39d314eb777851321238729c2c4461c6794ea3f85dc6fc9a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM8DG1942195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bc8456e6cce70389bf26d248301eee4eda25be1444b87c40be56cfc4d00767. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM8DG1923682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07e0980b609ab64ee8b55184959226c78ac9308713258e0aeabe01932b90609. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCAED1945370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f569f237880334d157e82f4549671180e1dd2fd409e8463a7d830b35b03869. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZJG51919803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd979d85ba9125fa54db3fc5e460c7a5f9f50658fa2b064cfd492cd7fbc4a37c3. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZJG51919804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae435b530409a41b76114499c97c949cb3fb1cc6d0c449b47d0f19fbba230168. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZJG51919805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99a47a242036d93ef2e79fc7665a29e04f90febb30d36e0eb3dcb2db126ade7. 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/QZJG51919807.
Code 8 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b4a341d641845e23b6d71095565ce351cb2e2623da8157c55efbd6a4607b74. 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/USQX91903339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0213a00109b52cf18f189c2bbc21a2a29f4477420b90adca3504b2b858d19c3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:45:12Z), 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/USQX91903340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebfb4c1a8d7d25ed2ec6826888d4189bfa54f37c9e064d662e0ea7e6e706160. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:17:06Z), 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/USQX91903342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36262b160dfe2830433a774bb471c3cbe3311ece5676ce227ef01a96094ebd6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USQX91903344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dda803866720cbf5715e656e2dca7dc681435e2651975e3fd46e80cbfb7597c. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USQX91903346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c563ff07aac352341afaf78a96051ad91e75d2610bee4003697dbcef98c191f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:30:05Z), 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/QZ85M2051625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d34701b5e15c0c1757b41ff601f59f1ca08f8cf24293adb6c9e367263d20d1a. 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/QZ85M2051627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6860efb772d0d5f6d18d895c145cfa959af1683482bc445dcbda8d77b053d0e5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZ85M2051628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607cbaa679bc31c6e34b701e79ab09215aed37300e38974ac18056893bb375b2. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:33:50Z), 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/QZ85M2051629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4ffbdb8f0b162c15261a947358700e438bdd8781d551fe0fe615d1d58c82d7. 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/QZ5FN2081415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8deffb92aff726e77aef9165e8829c4c6008f2694db0c27975492ad55ad132ac. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZN882359363.
Freedom's Path (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf60830ef1bc7636506e13730b86e392b10e320093f4c90c454cf01d2c8fe8b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAHP2334407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9f02b964ce5fd18c1781bf12f218d2bb302821740a025d72ea812369bfb94b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAHP2334416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5996606e9d46cd2c188da47c477a8049cdf8b6708419f10f51595ac09e1436c4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAHP2334487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bf083e28b4160e6aa0635999dffa7a959d564728cdc5146972aec2c9a6415c. 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/QZTLA2465939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fecb636e1ebf21d26072db7c2a0c59abbb8b9a3d8e9e89cc6e0149b32c9289. 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/QZQAY2566085.