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 0x6270724b04ea34b4acbd71692afbb62521e3a49c302905f9d70ffb41bfe3a3bd. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5d04a92-af6b-404f-ae19-6e49e9c7b935.json and https://artists.proofprofile.net/proofs/artist/e5d04a92-af6b-404f-ae19-6e49e9c7b935.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 0xee1949b13e40c6fbdc73400cbdb30ee068bfa8254a3548c99341948bdf8c8517. 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/QZVK62200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085488944bc166a886c5a505a53b6e0fdeb3bbc66d17037a5f6d3ca5238b36c7. 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/QZVK62200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe0d13daaa19804e1fe424fc62d17a79e572f586123512a7532b8340d891fd0. 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/QZVK62200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe685e93e8bf47dde3a6c08f1a4ef46659b37d72192a522b370811b84ede6da97. 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/QZVK62200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f6b03c135b6346e090e2d1c5eabe1baffaad4ed4df6430d2eb4a89ad882536. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZVK62200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f0ff97123e967c46962faba18daf6a070176938785c11d0286e22fb2329e2. 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/QZVK62200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c263b3960d4e431e8d8485c614f33f67cdbe9eb84a4795701219e28b28a2be. 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/QZVK62200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ee976a412537db0f43f99d81ee379ad5db7d28a65271e77fb319033579c7e1. 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/QZVK62200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d092c24c6375d0a70c9547b96b6b375336ac67b45caf7e0bb6a35fbb9ea905f. 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/QZVK62200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7c3b853a5394ba2046e7149f48952b1e6c9956383ef1711bce4a7cf4136bbe. 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/QZVK62200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1966fff64a5e7d457b1c7c29b10db97d5ed4e6e85a42885dfdb0fcf9c7994bc5. 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/QZVK62200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87806423df81e3259a3e67d5ddc49e97621273aca6ce5bd2a3cd8c932d4345a9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZVK62200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6528fe8c9fb5d3ac53a330e9fa203c68a40ab846b25970973795f8a0c04418b. 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/QZVK62200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2454c580bf7db4afc932de27c70a7c90f48f684aa0d6bc141ddaa2f9131e1575. 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/QZVK62200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acda49cf8d90fc67d9a0bc2c0ceaaf39574cdc6db085c50359812fd7b6fcf3e. 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/QZVK62200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6dfb4a7d7a990b31a47a49a7208e9416a07a24586ccdb58a768e427daf139ef. 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/QZVK62200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800435cd5790378ab0cc687c7a531c0dae77acaec14d21605ebccbbd25f165ef. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZVK62200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2498033f862b4f69f113585923153ccf2a42a586d9e601a0a0e8a4f1e8868984. 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/QZVK62200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204971b176a442309ad361dd838b7a19442719b8754fdf6ee63ddaec7919b47a. 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/QZVK62200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cadc5a7521166c9c90f1d3ae20b51042a91ed98959c6cd95a87f052588ddf0a. 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/QZVK62200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ceb4dc6a09c1f11d7ecb1ad230bc976ef76d1b0330443c303f63201cce3517. 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/QZVK62200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfe3d6629f2cb40ae8df248acf025a44ad811c9df5b9c152aa3cca09f72dcb8. 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/QZ5FN2151074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca0cbd33eea2fe4d3211f3484b9bc522a4702a4c2a81f16718e7852d891cbb1. 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/QZ5FN2151079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3330936e1e0c3dfcefd3ce163f59e13850836085204c5f3535056fe3273b54. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ5FN2151082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593735a0d8e7761eb710b52e78ceecb05ab5506e38b081881a360840d3ce6d12. 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/QZ5FN2151083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc393af7ef11f1e59d8948e3ae636cef51eed554b139dccfdb8bc14efac40c375. 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/QZ5FN2151086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bb2bf39fd3dbc2c647c50828d8269ea779da5d36180d020f922e9544cc20ec. 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/QZ5FN2151087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf787039dfcf07bba636a3c6a974018c9bac45ac4e4ca0c43b2af6daadc8b87. 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/QZ5FN2151092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6336152fad025f7fb04a3abcb0c5b022c742cdd9a9a9c53fb108f64095532b. 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/QZ5FN2151093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e1d81be0ef151b1b38df950d1c693999a54961625f16a8938669c78f062b1c. 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/QZ5FN2151096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc4918029bfbd671f127a63ee0289bb40409f6ddf05dc8d9e2af999cfbca1be. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ5FN2151097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608b7f0d832b58d567f47fccf9c3191cd9331a8813d0e58592d1736c18c47e24. 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/QZ5FN2151099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db9f6d8f732e9bdc3b7303d8ca3f7c8229af57bd92db999bbd5d6aff0de3ffd. Chain 2 (Bitcoin): anchored in block 957029 (2026-07-07T11:17:55Z), 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/QZ5FN2151103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc667b9003315b07a041e11d572ee7d8e526221ffcbab03a11880120d45c857. 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/QZ5FN2151105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2b03b548cf59dfbdfa2e6d95fb89ece463fc90c13f819522e5ccf495572e11. 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/QZ5FN2151107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cf350c78008d9922aa39b17d960d1744d8dcff2c6c141af2b27ed5eec8bd41. 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/QZ5FN2151109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5528dc07eabf210f9f0281c8412637f678f1694ef3f7480dbe628dd66d8ff9f. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:36:57Z), 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/QZ5FN2151110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498cf9f8affb775b921cdcdeeb14dad8a19a38231741b413879c8080942bfee7. 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/QZ5FN2151114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce44efbb7ed60fe6cf144808e6887eb1a7ef33345503995523b318cbdb81ed9. 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/QZ5FN2151118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da89f71857ccc2eed1ef4eaa6299cbbbef314b40bd304429eda8df08cc7ed77. 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/QZ5FN2151123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430ab5e661d60c6d35b323d80950baaad8479cdfb4fd6f40d60ebb6e1e6fb817. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZ5FN2151125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144c85c67bd813f1974870dc2b3ebeda9db9de181a48510e091680527eda8586. 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/QZ5FN2151132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cccbebce9d27624e237c33bfc16c6e0d611570f1431f92b584e7116d4b12724. 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/QZ5FN2151133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8888dd9a682d96b3c752e3174afb93b0c3a1f523bbd1a1d1e693c1fd9fa71c5d. 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/QZ5FN2151134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dfdf5abba79d02adf0e7544ca991db28c2ae06c2d3884792592001ac59e24d. 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/QZ5FN2151136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02035fa022328ec5855653d054d70abfcf41c9faa3f019b78f2d8abc597c789f. 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/QZ5FN2151137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc18b952b0f05c90b15f204d159b55d6e8506088e0b38e29218d3b9f763f258. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZ5FN2151140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c2643281cbf2ade87a0735bb4a65888455b316792a18a2673a32060ac1da94. 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/QZ5FN2151141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce326698b66d3bece541ee0aff90c234a7fdd4d470338bd81d6d9d2774492bd0. 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/QZ5FN2151143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfbb6f83ebb36ffbc68575dc769159f113d5d8f315ca36ba1f5742ef6e5002d. 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/QZ5FN2151145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895b2461e016fa1559c746722f254da79cff258cdc3f65e40a4948bc8e7437ad. 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/QZ5FN2151146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed02b61148e39d85c6994c97c1cbcece7e45828272dd2a88759aa14b349fde. 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/QZ5FN2151148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555cbba5d828057e9fa5e80d5da0f79cbd3ab72c5c863f1dcf5642909e949033. 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/USLZJ2274228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aaad685a4cd569be6d2f6895faabf7f9e63a6466e65f14033b0cae8391555a9. 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/USLZJ2274230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eff1e77103d70d535cde5a5d053811e18bbf1eef7d18dab3427747cf74bf2ce. 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/USLZJ2274242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2030e5917e75f54190f4f69559fc33e5fd34570fe2d8b51e57a98dec50947197. 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/QZ5FN2217986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d10b2d0e5f37d82640b21ff5c0f2d9f647005ee1732ec5369e0245bd0b0b01a. 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/QZ5FN2217987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16dc39a0277177b484b6d777591b848d66d841eabe2b823eb2c028e4ae17b25. 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/QZ5FN2217988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e583f5c18e31bc4c560dc8a8cacab0c9150f83439164ee6209ea798ef45558. 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/QZ5FN2217989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b7d9bba9fca1e30ef9e7b87368f4b5820aa38edf3b112ae86c7a80401cfc0c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZ5FN2217984.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04a2eb47fa122aae6819b8fd4ec69c29bd3db89cd822c98096fe6b102cbc0f9. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZ5FN2217985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a6d79e0f4d45ed05a0181d4401202ce4733b2a7190e5fefca0f3462bdd5bd0. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZ5FN2217990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a6effd1abecd008d9020f472bd14e65fbbc74cb1ca982c13f43db9df7af590. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZ5FN2217992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85de7017f78db6211ee047c1efbab99fe212d7ad3c2f2858cbd9d928dead72e3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZ5FN2217993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf013ad9f03e06ed1cd650f1e8b88324cc42b0bc858eb9019170357fc4585a69. 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/QZVK62300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3ba751b06569e23d7728b0ec28cd9a5ab758d457fe31741c25cb11cd8db323. 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/QZVK62300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1495f825e94c4b50043f4af5e1b0e50a93db3de5ba068ba3f90cf4756e52e6. 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/USLZJ2169095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab620dc364612ba3e60c00309fd5cc088b4315219ffe96bf05a04951d9fa9b8. 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/QZFZ72479337.
Reborn in death as the cherry blossoms fall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32608d9e07ad89b6a783d678266af00b36e462e69859bee79b2c1997a840e065. 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/GBSMU0123528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f779ad7731d5fac7f201b0a20b50dfb51f524b38efb5b2848420f815847f55. 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/QZNWV2096513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad46e2d70f3396ae38ca3654d025c7b95ad740f74c646ee87501e0cfe08aa87. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTB92295058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4308badfd8a8f8b9f4a685af74f05e4c313c976f735f49e11aface3a3974bb. 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/QZTB92295059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbb798f57b5c3acdafe2a2cba503bc1ac942846a8e384d377dcdf88a8c581dd. 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/QZTB92295060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2430afb6674e987e5bb7e625044af2b77b51fd41e0584092a1de06ff799cf461. 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/QZTB92295061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f839a5deded5d7bee163fc52526134f9b30c4ce244b67647be13c37f18d8722. 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/QZHNB2437202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e9f8e27cdc1e2c632066416df044017bdfa8e75b250614dbe320c5588c2342. 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/QZHNB2437204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823b9465487ed0700602b428656e19b83c8c57b6d46dae2bb3701c73a0f79301. 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/QZHNB2437209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f667c517470063fb905b9948737794a632e8163746ec41e51de3908fec4e386. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZHNB2437205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69751cbcc370da0ee72959a8301defc46f84cf926e061b52d3cf6824f4e1febd. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/QZHNB2437212.
The Collective Deja Vu of Being Cynical - Ippotsk Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c7e56f086f17ed8d8ad4e7cf718596e49547aa7ded6ebd51630a95e4916f52. 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/QZFZ22456426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d749dda259c0cfe4ac37e8470e72efd4506bbeda5ff078d64853c426ae285b6. 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/QZFZ22456431.
The Collective Deja Vu of Being Cynical - XxCHALKEYFANCLUBxX Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a2c77befe0348a05481784602b1dfa15c39c2b1ebe8ec86580368665d124a8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZFZ22456432.
purple sunset - Midnight City Music Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e684eb26ab871a3a2a3b1f064ce893741cdaac771566b92d4ab8db1efe81c2. 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/QZFZ22456433.
A World in Stop Motion - Aquoferne & Viznode Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d9f73d39a7b3f553af69bd07a5e7b79726d4951ba030aea2a98ce3cadc9ff1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZFZ22456434.