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 0x1c91c9b52f13dc31bd8043c1f50cf9d776d3464e1be377764fe3450f30cc366a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/901e5233-0bcf-4542-89d5-0dfc333cbedd.json and https://artists.proofprofile.net/proofs/artist/901e5233-0bcf-4542-89d5-0dfc333cbedd.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 0x0e61872176cc17bb7550c607defa86ff29a610a6a88e569e76a9e63cb71d9283. 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/ATN261665401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc92a0b55158b04e2e7e3a5a3c9f3a6096a6229e7b18ec042e33dd5205dc6be. 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/ATN261665402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a596dd15eb4d93ed39f097b57a2c6a0c18857f3d25680198f27a5f95319fe4. 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/ATN261665403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21e2fb2436b54c38d426d006d4b34330853e95a0ee19926d9866dd3329f3ff5. 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/ATN261665404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7689b0e9b33c98dcd9c7bd8c59721872d2f0524c7fa3696f3336d8e66b6e08d8. 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/ATN261665405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe628e732ac363c4ceb58470f2b65850371aa07d919107afa7e48ff4e51778c7. 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/ATN261665406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72fc29633e6976812de8fcc1866d6c6a3f45b526e6b9c9056cf6487fd504646. 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/ATN261665407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcfbacbe0301f33e14fb70970ef440c555ed2076029df627eda3da450058fce. 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/ATN261665408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c60adfa345b08175a23bdbf65d7950f441fd27a72aef41a3e54f2240356a40d. 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/ATN261665409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d54075ab4614e072aaf7d774a645648e89f9cca7adc8235f37e4cb0896cfc86. 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/ATN261665410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503ffb108ed58cf8bff0733e6298773fe96234750cc872ea05597ca699d206fe. 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/ATN261665411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9725f67aa598c5adda941b0982515de2f71d626b8d2a97815c7de45aed22f403. 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/ATN261665412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650bb0aadcc2f72fb3745ae54831dab02fd5ce1bcef7e5625c2dd48c9d2392d0. 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/ATN261665413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4180463cfae21704ba520361128b1298ad0779ebf6fa2685be8f03ec129d6145. 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/ATN261665414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5966e0617acb603ddab6bca24ed42ca99276e32c433181a93e45fa90ea66ed. 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/ATN261665415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291633a7535ea70ee52266539079b76f0d9b35e6afdc7ad62c2425161e83bd4c. 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/US3440811801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bb93bd778dd4c77ad052d315273e29a0cbe2aa3d598c569af67422aeb9ce42. 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/US3440811802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f73fb89826a276c2c38cbcdca694bb26a959645834e17496fc5ce86cee3dcf. 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/US3440811803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8336d77d14b1ff6bf09fad75a07be4354c465774036ee0f15f2347d06452250f. 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/US3440811804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ca35e1804669a4a5f9c35eb686eb931121a7456e18d08e82070b67bbf53f2c. 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/US3440811805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a576b8176ff1bee430467d0378ac2bec756b2501f123b9504b22b4aeeb48618. 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/US3440811806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eeb8bcf4d97e54525a3b82a87319a88fedd999208aa44a0ab613c0a119ef3d5. 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/US3440811807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7c8bccddd2f0c7c079a440739ee62a51ada97b25ec0227744d310b112a7a74. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US3440811808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e20534e4552103342517337db196d74dff7622e0eed57ebcc6d305c046ed6b5. 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/US3440811809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943934f73280986c0e1098bae4bdd478a9e6f8948a9406c35960f3f6fdf218b9. 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/US3440811810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db0f66b468154ad09965f68c22eaf37ed1634b2ca17c1a00fa68d4a0324bf74. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US3440811811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb1d4bea0c3f539e105ec80d0318fefc76328e2bcf702a0497afd46c93e86c5. 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/US3440811812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c2145a3c59dee54ccc54a08ed4b8c5548fd98f7002de47521997c916bf7430. 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/US3440608201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8f3c4c440bfdfcaff6536bd081608aaf0f6d770320b45b6d64f5ce7c42d4f6. 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/US3440608202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff68cfec2ebe031b49d3d4a3ab7fa225f20a7c45ef2e1350a6ca2708c52465d. 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/US3440608203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf833e638b93db8853cb9f600b01ca990387c18f4bf960a391d3bec848f1700e3. 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/US3440608204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5459247e76f33230e82065d297873181c6b8cf292b3d28f476ab1d32dec28de. 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/US3440608205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd907efff2e028a9fa6172cf115cc73610f4adb16e0ea691aebc8a3d9278ebf5f. 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/US3440608206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc254aca6dfadd86cc174098be242dbb84c2aa8df3c47b3c77e7a4ca80246a5f6. 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/US3440608207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df7ed48166a56f07a1431dc28e577ad2d099895c07c3aa4b4c9f9cfc1013a4d. 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/US3440608208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41b123fbdf815f30b5c4aa2dc0fbd6def45286e68837fb2e2af6afa5c563a1f. 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/US3440608209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee67d7b1e7df63a21570beffa1b823f8bfebb605a1a386c83b5158763df45c25. 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/US3440608210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac20894b329a3370fd67d6c2641416fc80843deeffb7270932fd03551c50c20b. 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/US3440608211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20385969cdedaa94debebc562cf1daa8c1282a4adce4028cbe26657c96046165. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US3440608212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3203256465311bd6bb08862e2652b8d7d49a647e9f530fc3f7b2e7ff6e3727c8. 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/US3440449201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd9445d00ff4acf4406458c567a6d3d37b6cd2c537b8d8063632bea6bbbe690. 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/US3440449202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e67c811f9ad90b913a777bdc1035fbaa511e0c63d04f8e01be76a53fc89947. 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/US3440449203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cfcbc0e70d35fb9f6b3f69330cef45db51c89b7639000ff8928d9ff359fc13. 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/US3440449204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad86edf66933a03a2d4443bc30d167e77f05f838a2352f4f46827531f5b1ffa. 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/US3440449205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89dcda179c4898125ebfc470b17119c2d49f6ca15955289d204f099aeeebf91. 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/US3440449206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7073115d0a90521272081ea8d8c388577c7b9d2eb590f2d6679d8dad97a654b. 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/US3440449207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99958428ae796c003b0314a7f80f4cac8cd8039a416373c9005572ce57108fcb. 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/US3440449208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca3aa40f330ff48750839a66648b67c297af3f31ac6d571da288dd3044e9564. 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/US3440449209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f676e163384b1f4900f5d7b6892482b375c2cee4fcf69cf31c1f686a8112e3. 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/US3440449211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee21fb432e632b1f3948609e7977adeb739444056ee39461cc4992af7cc6348. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/US3440449210.
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 0x621ae9fa304f7c7f297c546a98d8f01952eec17f8a08a60a4b66d0260e9bf4d6. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:34:36Z), 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/US3440449212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebc7450eae4397cc70f2604e7260bb3e9e08fcf21ab3d4b4df2622e6cff3299. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/US3440449213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fc722beaa0d3644447c07dd9403087f07686ca2900040bac78cf8b2a592a63. 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/US92N0500173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d521c203bd5a3abe7ed375ccae458c3c764a1db2fc1e498214d219f79c69937. 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/US92N0500174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328594a65cd91404cfe7faccc071bc8cb8179981b7362bd706ce78031cbb9211. 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/US92N0500176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99747c069d18733cb10d3858dcb3c2cf06c739e692a9ecbcafd2818bdc4811a6. 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/US92N0500177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95740fa4ed566e9a00c77317d401d6cdbcc3d26fa1a2f1627336c5351c9693cb. 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/US92N0500178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b48e9fe8c18ab82ff0898df70ac34ebe93af87694c12e63c0f620f7d8e4fa6. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/US92N0500175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a33280b97507983719990aa8906de490e4747a7097c1ae5f5bd7ed819ff4c5. 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/US92N0500179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ce46767c178006a24c5cbe427e263110ed3dd69f8a411caa93cde03df4a0f4. 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/US3440426201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f4178f7f848d8bffa5652c9370037783b05a6ca4f11ec08cae19f386fa296e. 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/US3440426202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac93d4973b93de81e6e32709f1d43ac83fad77beb3a5cfd4fd71065c145e91f. 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/US3440426203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867c9b1a1bd9bf9c46b8277b76c4c43ba9af7afff8d8c7f0f72f451bd81e49ec. 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/US3440426204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb81aceb3f508385a05ccaa903036723b577928edc776549577d7d8d3fdbbe08. 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/US3440426205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9942b58451b675aea00c13502044c1874f1fcc3e8027665264f28565c09df9. 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/US3440426206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a24b2f7de6e6ba99460c329de37689c1ef60eaf135703a265d697a30174e9ca. 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/US3440426207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7197cbd2c8f0aaa9710650afc21a40c4c410bc0f128ec46358cf72de1aca796. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:50:39Z), 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/US3440426208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ce7ac99ae8b5d74810eb87d38f4c0e2cd64821b8614614188116bc525c3aac. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/US3440426209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5a14514a82e597d75b064b108ef97b9449f16300b3f1013e6a451bf0a5bc0a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US3440426210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0848f239c1bfdf9d853d1d81392b1d1f9cf768af41a631806ac0101702495a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/US3440426211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a072b5f6e525ffd5844c5d7d07b4ff733fc848e0509c7c787ac56d3d055ed4. 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/US3440811301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac795f6544f5e36db333923fe67f8c93e31eae01a732ab40e32a318ff0bc1878. 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/US3440811302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cfaf35b73ba9298e6081f57173840ae40cf745306e8a7e263db5b983c64be3. 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/US3440811304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d092090e0b86a8ef2affe622bc2c35e41487a91bd5f178e8e0c821cd986b57. 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/US3440811305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0705984e97e68d56dcdbf8c73a63dab38fb075f6a30e549c84de943b4db58783. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/US3440811303.