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 0x0ad5dda07a90f7476114783dc9837ae7e62441a0571f6f41d6544db3bdab7474. 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/bf99e2b9-135c-47d4-9c41-a5df8627b61f.json and https://artists.proofprofile.net/proofs/artist/bf99e2b9-135c-47d4-9c41-a5df8627b61f.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 0x1e5c5dcb8c29a8736e30510f6a9beee22cd5c5cc8eab0abc9fd33d624e0be3b2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBMA22138092.
Copyright Free Lofi Beats for Streamers, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4934a8267b2f6b08d6c0448935d013503937bc5374c511f3e9a6320d139b8675. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZES52153081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf705613ba25c7cea237887ba7313d190907beaa5ae7344f91aafc0a97c2abf3d. 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/QZES52153082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb50ecc93a12e6b5184697954246047acecf467c8ddb5e9118bbc4b51bf7ddc1. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:35:31Z), 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/QZES52153085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37ae868b76ae34404fb91a644de317ee8466388dfd1a4a00647b669e30143a7. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T09:58:57Z), 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/QZES52153086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08dcd4094cb1c26e351b4f23d7065e9640f5bbe078ee0a3fffe0b6321ef7c8a. 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/QZES52153087.
Copyright Free Lofi Beats for Streamers, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce9cf24058450eefdc9125f860fb5fb5045831083563b8e21938af2a720d157. 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/QZFYX2212495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3906053da534815798e612fc4304731f9bbca232308b32a1cc188df3264e07e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZFYX2212496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd7993f95ff1c64d5c4665a74ef2024c1906628d693ff2895a08acb9e5b80ec. 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/QZFYX2212497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34bc656f123d49019e22434e36707a8f05b184640b26de3678fb1c2a9ed9362. 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/QZFYX2212498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca0946986bed5273b70ae464184bf57dfafd62af74774c2e67149aa97a105f0. 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/QZFYX2212499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305f9890f7c636bcfc9ee679664950bfca3f19c9b5e7fe5bcc838ad014c15cd4. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QZFYX2212500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a60543990d134494a601c2b399b3c8c12bbf2c3bf4066eab13b568c097c8ee. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:43:35Z), 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/QZFYX2212501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4914348f25c08123ccd4a88c5bc6eebd928acb00ce769cb7c2f0559e9ea49e. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZFYX2212502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b7d92d50ddda40df18bafee53caadb5f57d70f15f63b392e75b5967fd39e3d. 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/QZFYX2212503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe826e3d9d9790e8bb32ced082359d99f94ca755fbafa2e6c3beae366c1d93966. 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/QZHN42258328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd68b3fdfe8b3fcee17a5dd6953331ef5ee1852e687f5522f5792cdbafbe039e. 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/QZHN42258329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee40f51433cfde2be167e2ff0d399ce7738889b1f3b2504dd1ccf5692e13d9f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHN42258330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395727525c0e1d78e37e5caf58e5a63e7a19420ca5137efd839b59853326ce63. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHN42258331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdbaa6b288f1250c2cc6586bbf658e6306c365c535ae73da8cabcc16c9c0567. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:12:58Z), 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/QZHN42258332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627b6dd9c133b87d9ed8daac11ee7f26aa03e777e02fcc426048c35dc1addbc4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZHN42258333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaade0dbaf3c5d3a2120d7538ff841a98d8c3c4f6084cca28d5ab9f5fce307e. 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/QZHN42258334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2889c7b6a093aaad613b322dedec476a1b8fc9ceec38bf7782a477132e2a4e. 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/QZHN42258336.
Copyright Free Lofi Beats for Streamers, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a445ae30fe4325981f143827078d17b31a3a4d3ed84b2b70214d0ca0e3832a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:46Z), 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/QZHN62244774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27274e37436f21d4a1eb08d6a29aef06c4d649d00efb2105055b7e03f8f73ae8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHN62244775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c9cff5f9cbda3ef36606debd269206b1ca205541116443c6d6121b7c931718. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHN62244776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b7260df4520d5c5204898703aecbcb04fcdddecdca9f1cd7fb0a778cc34c32. 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/QZHN62244777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fbbae783fc78fd04923d9d00928716176286a557220b28f6e1a6674bc58a2b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHN62244778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf925605af7882f8e4a450e5c103b8cf22ac773183447949a5913ed2ae30878. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZHN62244779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c49bac2d12d5606f288ce023a312d152bd3ae0ea6258e1dbff65a5bc4e4378e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CAWK52492541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdde403ca05405622ab97aee23acb5328cc5c600e2ef7ccdc6d52baf51d7ad6. 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/CAWK52492542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b967c0d9d0caf70525b1e764b2ec04ee1f8e1bce4afc388e2d60282fb4af6e. 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/CAWK52492543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd209f856b43ff5bf1440ecf4c5f3fa07d4f2866af6b1f3706d4353e898a7698. 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/CAWK52492544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bad2947a83ac4b56d30d3d9f7886bad00556df4ba5eaf26f874cf8940a2450. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:51:58Z), 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/CAWK52492545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41985cdddaf1661c9d6752a8a9895dc871930b618c4ba6df2c5c23c4ee48f00. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:49:38Z), 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/CAWK52492546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cc2302567fe199872710e4011dcb4a6a1a68c7b8887415d5e595af1afebe12. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/CAWK52492547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03ccb1f4869bd64dcd7b334bdff9d420fe932a6f47fbce033dcadc3a30e2259. 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/CAWK52492548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b81cd3ca4b0a4be8ffee3a33d752a4fa38fec130e64d744b5498c8770e9bfc. 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/CAWK52492549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2106d254bb3b965b199311a2f106f45d0cfe6e856d056eba13a6dded4cbc554. 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/CAWK52492550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c2577ec75c3dfd68f24f2e13b90ce3f33a14376270bd0f5908a887d15228a0. 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/CAWK52492551.
Chill Lofi Relaxing Music to Study and Focus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535ccdc2c9fa5a03a71ba5a2e2fb4699bc7199d12892a0c8d42d04cd87e2e8a1. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:11:25Z), 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/CAWK52512101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29425c51ab819423c7c03ad867862702b3f45105b2176cf53640349acabe38c9. 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/CAWK52512103.