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 0xbbcbb726dd7a51c8e683f66767ef69c7506c9b8de4284256ea68eaec33e297f5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/171fffdb-4a29-4106-8466-944f173a7bbe.json and https://artists.proofprofile.net/proofs/artist/171fffdb-4a29-4106-8466-944f173a7bbe.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 0xc84a8448a1604a795cd969d50510aa94faff144948a6b6ebe81acd833b7983bb. 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/GRRNS1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a457aed92d6f7ca48126d05445a4a04077f49b6612b128761cda71e861c3ce. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:05:28Z), 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/GRRNS1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768739e83f41e197b947fc040a61b3cca287c6480e4c6ae0d5e4599bacccffcb. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0fed2a2afd59980bb9d1443ae696c15e26c1126571cbda2ae15aa2902f21de. 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/GRRNS1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebdff1779d0135649a5175d5e3dac61ea81f828ee05da632273b407c79b33b1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce149de7c4f05d219803aa0f30060bc743c4f4ff7a2bb6536286bdbd4bac37c3. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16bdd80410b9939376ca7e7e32cf6c9a5bb4ab59f0c5a20180d3b675575f572. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GRRNS1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e680d4757b063b823a25b6eefbc247ecd9fb2e218f84f6304762ee47a0ed245. 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/GRRNS1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0d80a895151defa9213dc3ca32cd78a6bc99836a7daec14615848f6aa16ad2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2669980ca2f480e9d594d001dfca8efaaae066b7db45a317afd6674ddde25c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GRRNS1600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12d695f23ea20b69ba5991935824edc1bcaa955b55af51ac24dcf4c68ef6196. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe8a96d751750b928b5908c7e268c9f29ff7e3c8322178f284b2af43e9f6040. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GRRNS1600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dfa6a04dabcf3e0742a1f20b93c345924bbe0643c807162df8fa02b348d122. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9ca5815ef57bb318269f6824ef71b8073c42c2a796a3478cbf9dbacb222b57. 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/GRRNS1600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381997938069fa3b494cdee504dbbffe21b508064ef1410bb4a842f2bfb4abc9. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GRRNS1600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc89cd9a4e0607cd61414c627c8022d2e4be758f0634d4ec8b911eb9941b18e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1db03fb46c7894dfe6c9034ec618b763a2f74b28d0bb2a1b1e0a1492e490781. 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/GRRNS1600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a50ae1c8cd8278c5b800a1767afab6a5557f4cc35e11101bb276d1faa26209b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GRRNS1600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d01ae8837f85f40dfccedc8602b59d81a8c9d6fa16a3bac3a733fcd83a22e46. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GRRNS1600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f79e59f13da37ab03da1b8ba518d248e5e491635e783e578c0dcfac3ecce0d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a1e9babc25ddf5c83d0c84168ebcc450490e8fc57dc249c0de4b071e3a277d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6c1709df1de1087bff7a2ba5ab7d0e6c3326092ec4491e539577e2957fb3e7. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfec799146da6933de47b94870bd653871763f2aa4b3272dbcebabedddc0bf8b. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:33:48Z), 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/GRRNS1700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7033cc3fd3be5942276ba6833035675e16895551e317996b1b5b3a6916faa17. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402c89ac304d13001c81f7e1e2ef088f83a92069cdadc43ba45c189c0be1bb51. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GRRNS1700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11983aa581b9f493a502b1b2fa5cec98a0aa5ba2cb6db59d7b50658d627c091f. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GRRNS1700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8989c314797e75c91e0e80b034b53d7edf1b38f1e7d7429bef42f91e520bb643. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5683761c4dda2e74031a1965e2e91882f2698cbaeff107d8814f51227209aa9b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:47:27Z), 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/GRRNS1700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa74feb7579e6386958b34511d8cc604b9b35228786a6312130eb82a991b88d. 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/GRRNS1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d3a12de49e030d34b22328d4082af4842f15c96051cd3b01a062cf06c14076. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee71362d05551e3e6250937b0cea807aa502d1e559730a3d6394bd49f3d4f9b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d7aebe7ad5fe660607185ffbdb0ee04bd809455a2ebf001dcb63bfa0fa450e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRRNS1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a4417d37c4071c3ead33111305057ae82b1d7907851abb67f5a7893778e2b2. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GRRNS2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48aef717d90baa59d11b927959f8a548e840ee5ce3a16db56474e89a368f3a0c. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRSTY2101793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9516e0a3d082bb05022b9a071bc490f3b47cc9bb3ca0ca792e83ac4424c9cf3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRSTY2101795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5314a75a009f9ef361ad2ae37b982ef31c6cdbdf505b5203275cf09b689ef91. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GRSTY2101796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eae209e40b58614a5c6c897b3f610269dab2358caa3e9f1f27d4b68fcadabee. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:53:46Z), 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/GRSTY2101797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bef308c792ee899646e92a9835f3d2a8cb044c656aaa279aad3693708ad09ef. 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/GRSTY2201537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f59c80d1d81311e44198eefda421a407668f615f7fe163e3bfc4b1458f54cf1. 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/GRSTY2201538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0593bbcb23af5f245aa59c2ae64a54b774764fa831fb83961c1efff6bcb36527. 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/GRSTY2201539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987d5be2d6d9c2eb608fa014cb7fcf9b5381b8b16b5d6a0dee18a33ccfea857d. 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/GRSTY2201540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dd62218a5896ba3a9524c78d0c94a1cf01bca334bf3e95b6ac554446fb99a2. 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/GRSTY2201541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebf8eeed2dc371beade51f897c5ebba6aa3cf81523c3aa5e3ebd0f038f5a502. 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/GRSTY2201542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41722de50d7916c4e9671a290f16e47297fe4f726e013f92d5ede20e2512bd7. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRSTY2201543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3093098a47e646689b7db9e6c543a29b25fa771499c1a658664b8db8e0feed6. 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/GRSTY2201544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3c26a293a57dfbf0a91a90d907b77e24a37d4ad5f62ceb120c6fd6f2cf7802. 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/GRSTY2201546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd421de58d46ddadf17b11014adddc4b59400b846f115e294b27b132cb7eb1f74. 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/GRSTY2201547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50773841f2ba25495bcd91f97117df8d7a63c36f79e0ac218fc4d996ee59c0a. 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/GRSTY2201545.
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 0xeb3ab978bed9b5ea88774ca3a8b374785da739ef6fa0dd1b62b62181621ad838. 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/GRSTY2201548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc4f74d6da7214056f0ca892990bd18119a4fddb9ed5c6629c19f4922f0330c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GRSTY2203824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e6017403dc7ed9e45604af301a32954704aa6e218665b3eb2b9bba2c931ac0. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GRSTY2300663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ae04f2f972d6b7dc6a69f0c041192e78a306133b5e6fb72d8054c6463bdf20. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GRSTY2400384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96215a4105577644f0dd458c4d6cff8e27f515981d7e574c9fd235017453295. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRSTY2401869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013a15e25db1ec01387620daebf72e09864555663e747962b2b8d4ec91011454. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRSTY2402310.