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 0xf5d4370e05727fcb40007b887500e660434e064990610a6e2483984f7de44573. 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/c73e4f33-806b-4654-97b6-f9d2fdb26ec7.json and https://artists.proofprofile.net/proofs/artist/c73e4f33-806b-4654-97b6-f9d2fdb26ec7.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 0x776b34c0c5f030ccedf21cee6b013933acb41f3b2c3f23782c3f9fe4fc847ab6. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:01:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62075694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4007c58901f2749c1e61a5a345dd4bad61d5074e8b54581ac573791655143f0a. 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/QZES62075696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86afb806c6ca6ecaf5c3ac759f7c86cd2971ab47c8615d5e3926007f43e0b682. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:09:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62075697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdde2240dae1be5a6b3cab25515a6c8fe9a293ee454d85d3af3005cb7f8f75a4. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZES62075699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a9a288ffc723c7456de45af0e3653d7e41bbef10ef6f13b74d82e41badfbd6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62075700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e733bc12727c861514f1d4fdefd072122488a6fef3e9dc31e2d4aa24c24a41b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:45:24Z), 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/QZES62075701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc716522fb6d2d9a3a8b5015e73568e4a796486549f4b0afc0711bff3f880dfe0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU5133078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2214bf89a6dcd43f350a264bcda41ea01e63980ca2ee90dc4b2af49c920e04fb. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBSMU5133077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a264566447e32843c61809e2f37de0e2d4f43b52d0db0fd0c7f85a7df1abbb4. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU5133080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca30a2cccc73f43b42a7f2e4714c123ef0b23d1331eef917fe9435015ef169f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU5133082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971d040aa239e169c1ef0b07f9e245dd884a115befe186338ffd7dcebd1db67b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU5843192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99deb880a2bd585045cc562085eb32742437a9e4521ba17ad96dc177a611306. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/GBSMU5843197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9cf4c03d22a75144f8a56092682068bc2a1fdc039f7b9116d6546db32e4944. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72069617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27eccea6c0bd8fb935e9cc930dc7aaa455789c2695b35199b1623221c75e334. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:43:36Z), 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/QZES72069622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0df3fd198949d9c701c7be0a7efd8e32dc29c7245b68c623c7fdfe5daa4e9. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:24:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62077768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3723495fe820443b3516df5e8854e837a8894acc7a1162ba5f2b906b08cedf. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6492485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c88187ca36d31bd6f283bf68d3db5bbf71150c10a509d4210a006eab220c61. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZMEP2065098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7702e10e51266ab75b08c6d8bcda781a321aac4821d0673207f70b99d6e651. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZMEP2065100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed0f4ca171d963e0580b386f61f8e21bba2f677fb698c3b87d21f7140043301. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61208f517a23ecaccf933d2c03f6187d19144d4756b7a7bbbc663b7431c2abaf. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T16:01:30Z), 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/QZMEP2065102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a9b7d5ccc918f4b9f7cea6c18dff3866510912ca1ececcd91a681a420b8656. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZMEP2065103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd63ee2cbcfb4cfd1f4fe7c96b9585ac381b7f746deb2966dad28eeeb12035e. 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/QZMEP2065104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4049b6afb6b43429c8c00ff9aea0fb9c63314480cf5e3a1627cae53847e0f224. 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/QZMEP2065105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c67c100ad80466dd2ffb5041869c84802a7d03dd525e785909728307dfa0dc. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:30:46Z), 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/QZMEP2065106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa202eca2ca63cd0f56c53c98c4baa7eae05cb2928b2735387c7d18a4dd1589f. 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/QZMEP2065107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8052761da6cdcf3bcf82709ee4bf87487b526f57732795f93fce7b6cd3e8adb. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ca0f00554801aee43523387bb3faebea22ae188a4585b83e655bca91617a63. 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/QZMEP2065113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63753aaddff2e817847cae10687e49788eaff6683e582e11861ba1c9361f84cd. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:37:17Z), 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/QZMEP2065114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7702e10e51266ab75b08c6d8bcda781a321aac4821d0673207f70b99d6e651. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:52:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed0f4ca171d963e0580b386f61f8e21bba2f677fb698c3b87d21f7140043301. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:07:36Z), 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/QZMEP2065101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61208f517a23ecaccf933d2c03f6187d19144d4756b7a7bbbc663b7431c2abaf. 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/QZMEP2065102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a9b7d5ccc918f4b9f7cea6c18dff3866510912ca1ececcd91a681a420b8656. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd63ee2cbcfb4cfd1f4fe7c96b9585ac381b7f746deb2966dad28eeeb12035e. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c67c100ad80466dd2ffb5041869c84802a7d03dd525e785909728307dfa0dc. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZMEP2065106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa202eca2ca63cd0f56c53c98c4baa7eae05cb2928b2735387c7d18a4dd1589f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53f628e32c38b5c8ede0a1bbc8f796b67d8df601d427dacff590dd1acc70947. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZMEP2065108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5925da142cd08b9dd1eb70982218bce9924db2519dac8bf204bedd5d4b2eb8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8052761da6cdcf3bcf82709ee4bf87487b526f57732795f93fce7b6cd3e8adb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe33c07c6d5a5e6b8b228983b83884e339cc690db37dc49000ad2e81dc2b7821. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63753aaddff2e817847cae10687e49788eaff6683e582e11861ba1c9361f84cd. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2065114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448ad23a0df78540d04187d0b96bb0bbb5ba08cf7fa72bb65200be5e73df0132. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72295595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818e8c562c6b868c9bb2caa78a434362604fefdaf547789440fb16d1f339736b. 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/HUACH2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fbaf0193176376841cb44744bd0e3397199ad822fd377d96e0e17034a6ee26. 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/FRX872424501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114ddc66a3c8423b2c29aaf6a5cf67ca455b55746d5d8d2bb45b76adadaf23d9. 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/HUUM72200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa4ad4d903befba846365eabe19f068610ccfecbd1122b0d461aee4c724614d. 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/HUUM72200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15d248a1c50cb9f8ca27afcf785e5c9bc9ecad9a01380a86affb0ad61fb0b4d. 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/FRX282367067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda708044973bf07ee20794dc99b7f78d3fc1de70184244c5c726bdf03ff43a1. 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/FRX452305651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0721506ec68ae352b798bcdee5ae9c81ac9bd2dee1beebf3f0c4ae77fd6ef6bc. 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/SEYOK1869995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c93207c2d7680e1b16c64278b953347b2493b9eff7851ddd02fa411d37c5148. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FRX872424500.
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