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 0x603bdaac4da9ed5af300819c50ed5d662f9404b067d4dba97ce7224e7f37e360. 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/1109cf12-7750-4565-9d51-a3079f6268f1.json and https://artists.proofprofile.net/proofs/artist/1109cf12-7750-4565-9d51-a3079f6268f1.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 0xe93bc30f102e517f73fe8e7cd49a28f2ebb8b3364600611ab9ab84ce23f5139a. 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/QM6MZ1503856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f523a5a3f78c461d50d0c62de3899dadaf3233123f7419dc48893ca0aa5fe0. 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/USZUP1013270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5e2b0fe909f38876d650a09c5fdc93ed20ecf53e8b8b28d34c2aeb3bcd249b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USZUP1013273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59595cb825886a798b6a141f77f043854c8e677d291370d7db198f2193fd00d6. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USZUP1013278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99ec907ec7229aa81241b50a389989e36b1c63ace4b1fa3d8161212bc050b31. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USZUP1013159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15404ee498c1a20752e19c6f4c733df42e3bc3fbbe51192660553413cc4e2de3. 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/USZUP1013147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52cb7ed75ffb8dede62124047e243fa9506487c70bf43f767fe9f26704fe8da. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USZUP1013149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e4f5702b57bc0c49d7506e4e0365f4f7f12541ed5fe7a881df53f69bd07f81. 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/USZUP0710361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d5fe7c7ee11cc9b8aca0ccfc874546f0530687d6c95ee319cc6321554a75b7. 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/USZUP0710362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6110068e6f008f50d3c66e60dca1e85514ae414fa9173e99a89a0636b182e84. 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/USZUP0710363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b2cc12a96fe27af8ef42aaa8340e0c0b581f7b12bf48d6a36441b9d010b4c9. 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/USZUP0710364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0412ba286b61713b6d2e2c9bcff5eb85e78b35bdb2ccf4e005a34986d7731bc8. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USZUP1013168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d6bf2e0b0a85ca7208191db6ddea2583ba26f1692569d7497499185982fe0b. 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/USZUP1013172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bb993a6b4d4021514a1455ff2b9d94e21cc2ca027a4d9a384929d927552a14. 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/USZUP1013173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7deec20d1bff0d0bdaa4bae16caae7772cab4a369ac3fb51ffe26e418b146774. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:04:45Z), 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/USZUP1013174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28677d7fb5da11e1a291916c5e10cc11efe7cb031b35f6c62286435a4270a671. 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/QMDA71353147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7563c89551d2c45e860c073b874cc32c1e8894d445e10ffa07c73fd9bfb6d851. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMDA71353151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5c261486842bb7ff4ed413645d2ccee136dc213971e54550d831c18bfae6d6. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USZUP1013445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69d8c585e76168b01741cbe3b7bbdcbe7c43b0ec4f531848716664bd2d30721. 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/USZUP1013447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8191800883f534e50261f179a50dfa3cd5ee12afc2df42ff86bfe6e6891a3e9. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USZUP1013448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdee7f6527b0da34ef6821661c6ee430ad62c609a1e0dd7c222c154ea3048ce. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:12:22Z), 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/USZUP1013449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836813459ae74fb150e983e505200802c11f843fcdf938ec7287d465f6d7eb7b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZUP1011718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560729ea93bceff04f416f5d1534b6fde42207c5a4c93de400405d34e5e34d7a. 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/USZUP1011680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2657f230fea6267422d28f40816c225c311bccbe29a2d7d3311dcc18daacf4b5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:47:56Z), 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/USZUP1011682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3281a569a37bd3797b53694bae35e31df549304b45b2c3592490001ca6f75967. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USZUP0710405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde18eee193db9f1eeb7c6d08e055af7435951482a20ecdcad2cdf8366c9d2f01. 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/USZUP0710392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed757f3613be186a34547656ad34344546c0db731c256b91015764dac55b6b6. 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/USZUP0710393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a58090762f4995c72ed202f9aaf6f2c187e8d9e6a23ac496087c7077753e7b5. 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/USZUP0710419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acfbb11fd6051b3f1d872a0cea2c7accbfd9e3e8ff79bf7c106dfa72e58bdc9. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZUP0710427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d73737fbd2bb11cc17cb738074d3aa9ce7b89766f1a30dd192d406da4df1952. 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/USZUP0710071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678b5f1183988849849fe18c41fece608db9ae7b08d04355603f8ac1d2291837. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZUP0710077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2264743032262c806207808ced3596d1a6bb45e01045ad727ccb8f556b5df8. 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/USZUP0710080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57640f6b91641b184f0be2e26c0badb62b196fd04ad81344163a5be51d42055d. 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/USZUP0710111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06d3f8eaab03d946498601c9d1d1918c944e5ccf50f69648d8e87b2c28e42b2. 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/USZUP0710113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d3053e67ec85b0db445f3c586737c77f41c1f98951901872b63b2877967a69. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USZUP0710097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2c11ca88c3127cf8de9bceac04ceefa94452a6cc547404e59043b117171225. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:08:49Z), 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/USZUP0710098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5c4dff2b1d8d5b492d8bbcc8542a7b8e714950ea163ea68c4e3d389b502788. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/USZUP0710081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bc386bd209018d500a4060dce52159ac48e4b9bb0a00707a417fb0f869f83f. 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/USZUP0710083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8426219008f8cf742cd1b2b2d30019581837e90b221638da79f721abbd0828. 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/USZUP0710084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbf0468e76bd785463a8191dcd527dfa72d193e90a2c39a29268ea0a8d5c133. 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/USZUP0710085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482a6fa8a7da0cd3fb0a10e77c1cd5e36c313da1d2cd7681e305a93c8207544c. 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/USZUP0710086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d0c99c02df86a145ed22902c6ab44fcd1fa647cc1afeaaf6261ccd1a97d370. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:08:11Z), 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/USZUP0710346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca60de82c450e991b1f1a63a3b71b9dcdd380d33554bc7feb9f6423df0fdf1a. 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/USZUP0710348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9bdcb7b413583e0922e7208ee1a4ede7c30e442eb3f4187b4d03bbbef2d45a. 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/USZUP1111680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21e0ec570e66e65edb92dd2b9b2074c6c0b63cb5c00f120bb3953dd4481fea3. 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/USZUP1111681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db5676311859bb9bc8a15bb6f8b9f33ea90a3efe18e9843b77d1fea2bcb3b4f. 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/USZUP1111682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf595151b1c7cafc36662653e5916ee3d67cd3eb992b907adaa4a86ddba69164. 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/USZUP1111688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e82acb5d12a8fda1ebf543c70ca248089a37c6533f64b76afc48eefacd31ae. 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/USZUP1111690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1e006d2d3760e36157a5498969bc41406c1315be0842a92c02153e4cdb8e15. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USZUP1300226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84730abdee38e5d68afe7bb95b94239ca6ca052aa87c0941cebac6b9d17030cc. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:15:49Z), 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/USZUP1300227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87428dc35268d402b8654f25fabbc47c17ca1d32beef484f645634e241b354a9. 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/USZUP1300228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6dba56ea63461c471a3d84fc2d0301d965ac8b7584fe48c3512af5c80ff334. 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/USZUP1300229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6558f19120004104055c5ec8195a15cacbe194164d1febf2cc07dfd1ef45ee. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:50:12Z), 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/USZUP1300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962489d7c4c8c3d3da804bb8751557e63e82c0d52ba0b698830222b0ebc3e404. 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/USZUP1300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27affcefe293f11a12fcbfb4023009ec611cf1ef71bfb766ecdd24e02c57382e. 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/USZUP1300236.
Club Corridos: Pepe Tovar y los Chacales - Coleccion de Exitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e11ef6e0a9901fabdec786f2b56db183fafee375e43432bd7666638817b078. 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/USZUP0710358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd837648a6cee38c9972a4ca73fe5d3855b4593e53ca47400548ac6eb56946798. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USZUP0710401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100c447454705f7c660f7a725b2e50b6ffc8b70379f12a8dbc5899bc10b663dd. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USZUP1013157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d6bf2e0b0a85ca7208191db6ddea2583ba26f1692569d7497499185982fe0b. 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/USZUP1013172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9c9d0ccfb56c3b69b188b0842b094ac2bbf23f33cd9b5488c007e508a5a3cb. 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/USZUP0710400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601d0fbad5bcf541e970a404ff3c36582a8b13ec175a61caf3772d47e4eceb4f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USZUP0710359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b2d208e989ef0c406eb5225b2e4a01f9065faec15b5a05f99c88da9171d2a9. 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/USZUP1013152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06d3f8eaab03d946498601c9d1d1918c944e5ccf50f69648d8e87b2c28e42b2. 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/USZUP0710113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c83f756359a9b95e8087b0db76801d2a3e808d2e0052a7be1266f00190a8a6. 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/QM6N21451549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f56914d072be99c561f0898937cfc5c13dffe97d0fb4444e8716d6b838676c. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QM6N21451550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30138ad79e1d4737ffa19326a6b65ea20e259aece58e593d097acd5630099f9b. 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/QM6N21451551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc8588a0bac0900343fde848042ad6c7ad0bacfa025b2b54ee4f14352064916. 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/QM6N21451558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d1b4467a7469c9764ca6158d4d715631ad5405c6915a160dc04983ab864d4f. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/TCAHP2344750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356422861fd5d9049d9d50868515ba9817cbaef879906404cc25c6bb4e78d02b. 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/TCAIF2421011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b70c02a9896b50f63e675e86dff31505626968a5e8bd9fe0992019116cb4986. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCAII2401976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944190345b3f78418a558f9e1229bf95fe762d8f1c34b6553b83a79a6dc6f84c. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TCAIH2401983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da4e69b7cc9320ed7dbc9c13e8f999671db707ed8955c2c920a3e0bc0a1e7d6. 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/TCAJK2567749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a06ab34dd93a4c064ded3f31b57cfc4ed1a3c2de7949f277f6dde2a087fa52a. 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/US7VG2464954.
Cinco De Mayo Fiesta: Corridos, Conjunto, and Cumbia, The Best Mexican Party Songs by Michael Salgado, Pepe Tovar Y Los Chacales, Los Jilgueros Del Arroyo, and Conjunto Primavera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f9a54f49b872cf30f6ab5d4b018a271038eac9fd1f59153e2d252a6c30218d. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/USZUP0710403.
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