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 0xc668f074c4410be086696fa9db09e30080323141ab126e5f833f3fbffb116e16. 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/ffb94447-ae49-4262-befe-3a3e94d47c47.json and https://artists.proofprofile.net/proofs/artist/ffb94447-ae49-4262-befe-3a3e94d47c47.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 0x3acecebbb69193b2425dbefbf57fd346058d2093f22e4cbdea9189aeccb8d054. 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/JPN301001703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1be2223adf986181f31524d120f5998711b0028242ca4d7ba42319b411abffe. 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/JPN301001704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe441ce2c893bbfc9a62a37aad19627901f18bf33ed62951bc45e0bb083663655. 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/JPN301000761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf294ff80710e09506630b9eb82e8ba1052384fdb97255a9bcf2033bc32b248bf. 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/JPN301000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda6d4b74365804942f446dbb10acab323daa4fa95580d1e967acd983c018ddd. 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/JPN301001705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aacd4812f8b9e6a7bff8c470d40a4d928d25cd38edd7efd8d9116a406a85f19. 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/JPN301001706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2524d5b93764a66b64e542f423b83711cf2e6c3dc2690c1b2bf45de6a538d39. 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/JPN301001161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a2ed48b533b65dd44073b372ab3e0b15013160aed83f010ef4187c76fe11f2. 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/JPN300901561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a39187f9261592622b42ddde5bc46229698d208ddf3e66cc7f3807af6559a9. 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/JPN301001711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be8bbb2b37797861341dc0c5de2f0e388672ac0a45f9aeb8583e29a0cf1f391. 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/JPN300801781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fff9abe4c60d20e55015ea3e288e7dc2ceaf472ff575d6611c4f4d9f89625d. 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/JPN300900541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810a94616eb26982e5d6deccb916d948fe45b5c8a90e808c0921982e18a95fbb. 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/JPN300900802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffa1dd12ec57ff8697c7235386a6b70f07aa2989c83678a454f646d193883ce. 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/JPN300900805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5631bbdc74e54164b238b8a8471daf4aaebf7e9fd7e253e39b6f9e7dcfcf74ea. 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/JPN300900808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd626d199b02da81bd25f073052fbdbc7c2d00a9df0f02ca2049df18cbca6d5e4. 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/JPN300800901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2569ae13bf4c8410aaeae9d77fd63dfa8934fd8048541a540764396cc7a11136. 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/JPN300900801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38df62d9e54e0a4f5b21dd132be9e1989aacf2f5194b16b24e51fa0eeeaeaff2. 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/JPN300900803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bed009c0160ff404d7629a9d93d58b004b649b31898b2f41a1651260d7fe78e. 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/JPN300801782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe68545d9450dcd0c20dc6add4f84f562837f6b13551e2aa6832c7997f0e513c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPN300900804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb14dc0b7be779b536690ec6127591dc0ce1936191681dfdbfa24bde0ab884db. 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/JPN300701826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0058a590a0d03320022a80a4537140de985e432222479f3e22f3b4d78bb290. 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/JPN300800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681804fca01c641d17ef40c00de5d5c2613aecaf56a779a257c178aa97e55236. 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/JPN300700642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbf0a47215ec237757c17be7185b08e2f8ffc2116603b2efdb7494f9a50b73e. 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/JPN300701881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306584657c8f218ce06210f173908ac08708661e580d86d51547f8ff5716f4f5. 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/JPN300700643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aca9aae30d275ac0396b10b135155740016092c2289207fabdd6063efd34478. 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/JPN300701281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6907de5d05bfee2e719dcaf725f030cedab33ffddb5c7f287ba2bd324c3b69c. 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/JPN300700127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b07a492572db59d5e82e6049f10868326b3c61db507d38ea86f7bef4adc165d. 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/JPN300701825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2524d5b93764a66b64e542f423b83711cf2e6c3dc2690c1b2bf45de6a538d39. 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/JPN301001161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe441ce2c893bbfc9a62a37aad19627901f18bf33ed62951bc45e0bb083663655. 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/JPN301000761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c6fdf0b68e4f9c35e25819ab63264060eb62d3248ccc59e5975c1b5ed15131. 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/JPN301000763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf294ff80710e09506630b9eb82e8ba1052384fdb97255a9bcf2033bc32b248bf. 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/JPN301000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242c741ba5e6279349816cc342269bb42f46dd2d308e8ba9f5bed12db3211294. 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/JPN300901562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fff9abe4c60d20e55015ea3e288e7dc2ceaf472ff575d6611c4f4d9f89625d. 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/JPN300900541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d45a5f1ca512691dd6638f91e2a30d05569d58d1d0babf4994c340635d25e4. 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/JPN300900542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be8bbb2b37797861341dc0c5de2f0e388672ac0a45f9aeb8583e29a0cf1f391. 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/JPN300801781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bed009c0160ff404d7629a9d93d58b004b649b31898b2f41a1651260d7fe78e. 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/JPN300801782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd626d199b02da81bd25f073052fbdbc7c2d00a9df0f02ca2049df18cbca6d5e4. 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/JPN300800901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b07a492572db59d5e82e6049f10868326b3c61db507d38ea86f7bef4adc165d. 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/JPN300701825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aca9aae30d275ac0396b10b135155740016092c2289207fabdd6063efd34478. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/JPN300701281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b743bbc85081988362ef7dc48ad01be16bfe4d61a17cd123236da3b4f8585e. 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/JPN300700126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6907de5d05bfee2e719dcaf725f030cedab33ffddb5c7f287ba2bd324c3b69c. 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/JPN300700127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681804fca01c641d17ef40c00de5d5c2613aecaf56a779a257c178aa97e55236. 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/JPN300700642.