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 0xf114a2c53e0f1f1ce739350186dd99b9582abd88a07e35d24ff5e9d0cb8f2d40. 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/62adb1db-522e-4cc8-b2cc-0aa21c2d21e1.json and https://artists.proofprofile.net/proofs/artist/62adb1db-522e-4cc8-b2cc-0aa21c2d21e1.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 0x30ee7e815675352a36f9494406fddeb310e2523b603cfeea19e05deb4899b200. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SEYOK2224503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d955772752582cffa05c3d73156bf30de65742cb788acc73acca5ef87637f9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/SEYOK2224504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284647b05f5da1c151b541c54532ae2ac18cfc50dfab35170bff358a607feda6. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/SEYOK2224505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032a0af4f23851e05aff2c3673a2dbca485245f1edc7cedaa6468e63c04b4fe4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEYOK2224506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02af653454e0c072e968484b6966acddbc7cdecbc30fa6d38c5469456f9f2bbc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEYOK2224507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8184dac6f0f2ba8fde30b110624588c3a35d0a504253d6574540226c4a098b. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/SEYOK2224508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f620fd366f297b3288578c146e1946d2f86707f80d967782b7ae3e8c188f79. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/SEYOK2224509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06774c2733e9f8921bc3804dad2fc2e7084d494cdd1bbbf1c3e4f7c3a3b053b9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SEYOK2224510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622729789134c82af47fad60f202ae9bbc2600f06ff5a95c85ac49d51e8cae10. 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/SEYOK2224511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4ee76bc0115b4427e5409dba8834dd33e12a7dc1c8e57042fadc6ec3ee7cb3. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:05:34Z), 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/SEYOK2224512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1918733f4a5b6aff9b07230a238aa3327cd114c2d8c23b708d8ded998c74a90a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SEYOK2224513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc521aee099c2532b8a88f4d6f06e4041c66c8a138808bb37dec06a8461c7cd73. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:04:51Z), 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/SEYOK2224514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29450f8f6f9ddc691eae201c2c78164205f4b6fa608c0f5cdc01f7c1cbaf0952. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SEYOK2224515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e1a79936b969abcbc9b0900e06eee679e6e0782bdefc36a10e602d8363fede. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/SEYOK2224516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a8a646c1d5c3ae0dd08d79ec782900a1d8ed034fbc91f7dbc2d3d7cedd6dc3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SEYOK2224517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8997695d077ae585e3d4570f6511328023212e5c430505bf256ceb17617a5a91. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/SEYOK2224518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6d5044f6bf3d7150e0dc0e1a6cb18c9f9fd25f081d4f8b278766c0a354aae1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SEYOK2224519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff98c75cf8321de7921702db7e8df999c7688ca7d4dc6c12f99fc06fa45a1fd. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:31:03Z), 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/SEYOK2224520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb4206b3d937276aa444a032b7cb9e3fc69ca7db0e4a00f11a75a6c0dd4ba74. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/SEYOK2224521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8e7c3d88e7db4f300823277ce6a584e794115aa83ae6f4d33e8b375cdcb395. 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/SEYOK2224522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2601a8ee491881bd6b871a412398079093039828433b6ef1fbea3d26ff4c4a7. 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/GX4R52208737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813731667be69c58e56a90be103c4055f1243aff6f5d578c2a5dcbed757112a8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX4R52208738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74cc878657c124f7f8b7ca48160d44451dbdbf2d7b9b1a223542882f9d2afda. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX4R52208740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b242e6452e2b88c2ab09faf4cb5ea585413474bc3ab36fcba34ff039664da2. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:39:17Z), 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/GX4R52208745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa099a18196746fac4166d03ee0999eb97913b81016e8202b28c4d93ce96b00d4. 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/GX4R52208746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f3b49be2f34d28c62a515f250e1fe8571a4af8273663e493484b888627a9a0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SEYOK2210888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2ecfe32ef3e929b2054f903690219505aa37b13579a19a2799427a2d1e2a6c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:26:19Z), 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/SEYOK2210889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f8455459eb2559ef273bd0d3db9f098f2490817cdaa54420c6bb12eefd2b1c. 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/SEYOK2210890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb9aaeb653da65c08600ce380e811e23977b2478a48b2096106349c8034907c. 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/SEYOK2210891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4767296a9d27bc539e4c69ddf495dda826f567acfb7ce8283ac53237d5ccc21e. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/SEYOK2210892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb373f21472cfac155af24793ab20e4c18e173128fc383483cdac2fc354286bb1. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:31:35Z), 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/SEYOK2210893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd465b65dfe7b2cd84b15dc69dcde4ee6a668b997105841b741fa112f90160c98. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SEYOK2210894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5a7ca80fe4b93e2aad2d0c0ecdb28a4534c1a1ef89c7a30e2dea9575ddb637. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:40Z), 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/SEYOK2210895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf871415d4a064f4e39042ea4abde4f2edf36f05dd17ee3fe8ea14cd24a137635. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SEYOK2210896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d8415f404e2bd0c9564f8993addaa869ed7ac1191793ca26b84d914ee0ee72. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/SEYOK2210897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94fe4eb94c888b6802db3f1c5c2ece9b6002bad6545a521bf22e077764067bf. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/SEYOK2210898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415192656536852b5e1f5b82a89f092647dc8d682c089eb04f6026f7012cc802. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/SEYOK2210899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d81425d37851f71628780106ee087351c261a02ceef4cf4c687c8227f971cb. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/SEYOK2210902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff974c899cf26be13c0951f2836b331de27f077f6a3a17629304125993c7d456. 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/SEYOK2210904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a706255a2297bcbb55e766aa85f1fac951f5b1cf6bb208dc67c92f0c6e6aedb. 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/SEYOK2210905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb81093ecea634efd346701cc80574a8233c50b247258b20fe3d4fd47c8f382d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHN42292046.