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 0x8e3b363a4709b30437df91167355a4dd72467bbf35cb76edf7fa7445724a489f. 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/eeb0879b-764b-4944-be9b-48abfa572b8f.json and https://artists.proofprofile.net/proofs/artist/eeb0879b-764b-4944-be9b-48abfa572b8f.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 0x49d4dad4342745f070c61201835320826188752bf2c3670e5f563f27545cb409. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde77268f248ea8428a8108fb1e57ca7acd27bdbabc8668f5e857d39e48d128c8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fdd737ff19546ac5addff1807110782d11cceaad2bad7ded4e4b5e5d413ab7. 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/USFP70400237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938197d623b0cf833af20710ad0f89fb8da1dc58c5a39af998ef192d3db3a01e. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:31:16Z), 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/USFP70400238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f71a1836988d2ecf602cbb85dd9ea4b52e5c4905ba4c1e6b884463e35dfe4b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:45:08Z), 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/USFP70400239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237b26c079e06dae6389496323a9cdb3900ab09fa693056cfaab74d52ec59670. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USFP70400240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1617b41c2d18aa62334fd43da42e7ff167e19d1bfb9ac58837121bb1c4eb7f1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USFP70400241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd515e8d1f2dd52f66006681b2137978588903edc4d714a1c5d5bbc7381a24f2f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:47:56Z), 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/USFP70400247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350e905a51bce29032bbdba851981d94695b410372e1ea521c28ebb421fc1ebe. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USFP70400249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ad89fa000b366f1c1e1414d5fdfaa66b600616670bb01930348e62f4ce3a1c. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/USFP70400250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225ad0d0789884ae5a789e2788e7bd13785d10ea7634d7d52f77292951a6c9d1. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USFP70400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0292c11e67cb08bb103cc397096930b1785a5897a0c923737cf9f71dec75a03e. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USFP70400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28bc611608f1d34e6c9249c649a2a7f293e036f633f7e7faa9bd7e08f79099d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c80b5f4403cc70d841d93520ae7fab69024ab8dc2bc421de4ee37eae057e8c. 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/USFP70400270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c5c7e9b5548f08fdcd39833fdcfa215d9802c89284dc11560aae0c155d3b10. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USFP70400272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef017a2c5ac403fd617bd7160e176a85a2f3c05b55eed6d378f22dbdf613b23. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486d5d4770cef76745a5e88e3a91ddcd4bbc57c275ae35746556bc1f14b8b1a3. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:56:32Z), 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/USFP70400681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cba1e25e3682eb5236096c8bbdd405cbc699840b2c2ce6cd664e6538b6a981. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USFP70400682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb97b6856b25c4618317c813b8f374594d6a039a55ac30e317f743e34ab0903d. 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/USFP70400685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc385a9600c7dc0fc142cd16ffeb7c0ddd8819be194fa1e0e947920d4654064de. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:42:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00f03a603274a5512d8f35afe279139a68dbcf6530dd10ee82e975ab7a69689. 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/FRZ178460020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231c2d3b557c65e523b4de07b633ef3eb9efc6785f477352d0b07d3d6540c397. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:20:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ178460030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eef80bae0d4df78ad63199ae2a675868757c2655df2d26482f53a5cacbf8d63. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/FRZ178460040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61016aa03fae740690ee388aeba058b999dd4873703f8829d0404c58fc96c6c8. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FRZ178460060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8efaa30ec27b4d769986cefeeb7cadddcf6cbda6c84a0046bb193822b3dda9e. 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/FRZ178460070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1236fa7b5e4c6855bdc6b39de6fa380d39c7a56d4ac759b6145f49e5a49b8ac. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:41:07Z), 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/FRZ178460080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548c85811f86ce2738fe02d6ebbef46217b66dad3ed5c52af7ea8e7d28abbcde. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ178460090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2cb0fc1659859324a9c735741b00c63542bda0c695c98b5df92316c37abb0c. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/FRZ178460100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2831d9cf2524069ed53b6dd8754467a3ccf86cfb34f17fe3cf5a773a19a3c9. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USFP70400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea6037b13973996c5b21b4e28d0451a7aff2740b16bae08c6d5065e768a28c8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dd8f62f24ae458ea2d8786502c019c01fa1ab388e497c036d6e8ec2a3bd947. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USFP70400278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7df60099a4f2924b36e89cea2bf1ecef34068c33d41f4ab39cdd0fca40f8cea. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:50:25Z), 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/US2AH0401111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2246fb935adf8d20293780e7c6c0f0014e97741339ca04e6959af3f9ff14d96. 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/US2AH0401112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf373b6f9ecb5c18a0bd9041a1caf90960ac0a787dc9b8db1aa0243bac82dd63. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:00:22Z), 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/US2AH0401114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bbc4f192efb426f50ab6bad7d90f8a4e4425662cbd6c3e243fb6af700b98ed. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a8afe64eb2b473c4e93d56324a807bb637f945c4949ffec18d2a99e49a02a8. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USFP70400228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0b7e12699178f4e92299c04c85f84ea9448a9f1e72caedaa9e8831c3c2b571. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:35:17Z), 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/USFP70400232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616dde82dfde37ee7251486cf0312c8869519f4cb95aa834fa435a016c9f89cb. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfb0380150a43e191f5294fd60acd7eb3dbafa26bc190c7f6350b1edc345696. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:58:22Z), 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/USFP70400255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050a64d77c77255d1f9e0520a7a1a1fb9a22b8a6ced08412454b88237412d2e8. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0173799871f81787e8bf2cdfe6df710648ba27e92fe95b51eac21ee0ca50f86b. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:41:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b86bccd29a5551c01b54f19872f09502bb9351b6729140da5fd61625bde597. 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/USFP70400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dbc20466324ddb89e59c59463ac49a2537342d056bcbb1ff4e2754a466af9e. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:27:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37b09885f635bca00a0576a9393cc5a86c9e1e3319ac87a0f547da0ea1c46b7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USFP70400283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a94802864b61749eae39bc3032f35b1c1649e1c562d96743bb63c276acf7ce. 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/USFP70400284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815a4285898cc49b33a722fc6352f6157b0b7db0eaa9fcb88a953c2c105a1e66. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:21:18Z), 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/USFP70400291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97df54201eb529711298862a2c5fecf1f67d8df6a710359ecc073668cb2b7cd. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:37:03Z), 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/USFP70400292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee1baba8bcc311a434f5265143db94b60fde199efe593befc0aeacfd3d5475f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9677ab703c89f43725a769f36738699b0baecd71d6d9815b830407ee0482b48c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f100de58c9d6a6caf29734f09391480d2dbc7a243844730176f8de7ed4ff3a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USFP70400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a718cc4853341d89a8b297f20022a5469090b24b855162cd5b73ad163f7f93c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:19:46Z), 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/USFP70400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33af6e597c2beca2806c85f787dfcec2aba7661caaf59383bd154923a860048a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP70400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ce378312ae9b83f5521f014a533488d4db3e3888c7216e6f85d0d031fed775. 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/USFP70400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb2055f0fb4b36abfb613d0cc161fab0040575bd3eeabc50e84f8b461dba1d1. 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/ATW161092106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02090d3f82157d71d2d2ddd13d82633171c64515e714a8bf433acaf2e7d8da2e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:46Z), 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/ATW161092108.
See My Jumper Hangin' On The Line - Recorded 1991
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c7a713cd4b6369db2906af52ac2202f54f136214babb44b3a16a46e612a170. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ATW161092112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12d9680988f8b0dd2573b3f2991bc46e5dff0dd4dfd61ae94c4bc1de4fe1a39. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ATW161092113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3ee62fb87e0399d6ce6b53d700fe727e6bf4f813e42916ccb7d167aebd3f09. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P2077296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cf34a406ec218acdcd5e07663d173a079d5dd7587a2a404ecc23dcebfff5f2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:06:12Z), 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/USX9P2077297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6b40d6492d08b7f4f3994d66e37c1688e8fe9326bbb7999324df51108e8a2b. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USX9P2077298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2ae93a7e85d094663f1851a0d787fbe5a1d603460484a85282e33ec51417c6. 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/USFP70400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc225c858a0aed780f59312e581e144d659428a4e8360044e4a1ea51833015abe. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USFP70400226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa314b4be0d3e8145e2247ee03aecfb3eccb199ec6f6a1df2c1fea5bd5098a2a6. 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/USFP70400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7669ffb9bf48357944c128624353d1956ba22f8bbff06e6dc6c08e83c99768cc. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:42:11Z), 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/US28U0110114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095de7e99b597a0010278479d63a4b526445c3b3dab85f81163100413d70741e. Chain 2 (Bitcoin): anchored in block 956995 (2026-07-21T16:06:12Z), 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/USFP71226217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd351cbf636f49e1ccf855153f2b0eb76f9c1827c35164675c35b935b4ef4e7a7. 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/USCMG0301877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb24ac16892d72c602bab189bed18fd2dc4db45e396e0d19cabe6d68292e8cdf. 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/US2860471301.
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