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 0x7d549a6108e7d9649efff9db20c1fa78bfff2b5339e95c103e129a0589b906b2. 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/94420965-2c6d-40ab-9c24-dccba611090d.json and https://artists.proofprofile.net/proofs/artist/94420965-2c6d-40ab-9c24-dccba611090d.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 0x7d496ba4a0d0b6fc52e30defce1e9db58989eee888d4732028345964e328c1a4. 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/SEPQM0612987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f085e5e867ba24bfa0e4a4fa62fb9c62af0a325183c46a1e49afb9ec6aa2d7c. 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/SEPQM0613638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ae9fdc597c78f75ce224d5f266f914d5dd6a270b9dbacea001d8c3cb0f618b. 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/SEPQM0614328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbd01e32710cb356efdf69aab3daef2968c49a355844c6c114d7405c74fce22. 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/SEVSZ1300306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08de10d33ea03a1849acdcc6ce6e8d287798177484990c377829117766683068. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/SEVSZ1300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edafded64aa4c6bb7451ce5f873ebe119ec72b8e3738b50e4a59c409e74eaab. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:32:22Z), 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/SEVSZ1300313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e3dbfcac8ad5ba8972fbcf351359708d0757b6f94ff0e3d2242e21d9fbe02c. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:00:56Z), 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/SEVSZ1401702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea50e0ba8e26481afa75569a5937715a24df34b3c6fe087a016522701d88ff8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEVSZ1401704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e26ce0d0c0982ba7ec233d9f0d4f5f39fb8818e7ab300c2742236e2cffbdf6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/SEVSZ1401708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78e9e2730580efffc08cb6d50d17f0bcc6099a76dd8949d6e8ac3bc57ee7ca9. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/SEVSZ1401710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb612b67acc48afc2a04ac043ed341b567eb6324d69a4d7c61e524feef081ccc6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SEVSZ1501402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cf9b84c79284b847856117ce2cc3877970e2767fc8c85b7b91171445144adc. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SEVSZ1501404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509b4191a13e001a988277d38dbf33551d24336ce3b6195591f7f9ad52925028. 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/SEVSZ1701405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b819a51305f1813edbd67d4c28fc646ad0015c07f67f1daba42d08f6a5fb039. 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/SEVSZ1800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5489011012ec104d6be6bfbd746128fa51370a669fbad708959cf90e25d17cbc. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/SEVSZ1800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344a1623f6b864a400d5d140539b7eb679452f0bb5b1b04ae275870ced5adf07. 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/SEVSZ1800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa723c654681b9c44fd9e57f216e5c08d9f1a48fa9cb33a406c51fe624f3203. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SEVSZ1800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6b86494d0882de0043b9defbf6a405acdf224235734db3d7cad54255146dea. 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/SEVSZ1901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551f71c8a04f0c881255607650dba6c0e6d14f6ca13180773aa2aeb65e5e29dc. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:02:24Z), 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/SEVSZ2000702.
Bugg-Medley: Who Put The Bomp / Oh Carol/ Please Mr Postman/ Crocodile Rock/ The Letter/ Poetry In Motion/ Let´s Twist Again
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163b2e68c7db45047f932d643f4b61577de56d897efc21ad958d181f38fa8502. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/SEVSZ2000708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6540ff8ea07ce884e2ab731b57c3b56a95e45f537d0407a2b8bcd49af8df841. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEVSZ2000705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9f62168b94ccc6b50d487ba6b1c2500f83aeab4a100ff6e67d4f4adaa8ed9e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEVSZ2000706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6b86494d0882de0043b9defbf6a405acdf224235734db3d7cad54255146dea. 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/SEVSZ1901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9f5437fc3d6e3de36a5323fbd00858cdb297cbd534ca738ace28d46304af9f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SEVSZ2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6ccca65d52263e6876e26af96b9886a1b25e6fdae7633451e23ff970256718. 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/SEVSZ2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfecae1bb5ce873906bdda5b9f2d887dbbeda2e6a70d42ad3ede9e3aff689041. 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/SEVSZ2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a9a214565e24aebdc1a8d78537726ee796689aaea8e837cef4ffc21ed8dd44. 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/SEVSZ2201701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e6c8588126d9d7bf23f3a1773639afe5b21f31a18054d04848cf6170c54ea9. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:56:48Z), 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/SEVSZ2303102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806de2dedfea80e5670c6b8352c4e2202d6bb8e5e0d7b1f1efba020ca011aae2. 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/SEVSZ2400701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017758430811786361c0b9de90a740dfee8fa905f7190534bb015d420fc87562. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:37:43Z), 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/SEVSZ2400702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41904e80d65f2fe3536a6bb7d804860026f7a5069148839e258f122be402d94a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:06:33Z), 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/SEVSZ2400703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41904e80d65f2fe3536a6bb7d804860026f7a5069148839e258f122be402d94a. 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/SEVSZ2400703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6ccca65d52263e6876e26af96b9886a1b25e6fdae7633451e23ff970256718. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEVSZ2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e6c8588126d9d7bf23f3a1773639afe5b21f31a18054d04848cf6170c54ea9. 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/SEVSZ2303102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806de2dedfea80e5670c6b8352c4e2202d6bb8e5e0d7b1f1efba020ca011aae2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEVSZ2400701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e9d467acdddf6e66d07040e4c25f425d52b411313814dde1df44ce850a28bd. 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/SEVSZ2400707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9f5437fc3d6e3de36a5323fbd00858cdb297cbd534ca738ace28d46304af9f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEVSZ2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29bfc1ef210fa59c7ac2b6b3447b5b944366578eb42d902182c46ba726e0146. 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/SEVSZ1800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa723c654681b9c44fd9e57f216e5c08d9f1a48fa9cb33a406c51fe624f3203. 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/SEVSZ1800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ff3962b7ab4b5b8ba504320471d1a4886370a2f5906596ae7a324726ea6cd6. 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/SEVSZ1501405.