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 0x474ab8015700a00d7f806b1c71d72d6526fcf94c18e67b8e3d79070af021e1e4. 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/b9e83d09-19f4-4a70-b950-6ff8d1ff7796.json and https://artists.proofprofile.net/proofs/artist/b9e83d09-19f4-4a70-b950-6ff8d1ff7796.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 0x3e12adc7ab97d92d0e97936d0e31eaac2f4c20bb4fd3f5f92b62ac7f4d3ef2de. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:00:23Z), 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/QM4TW1873104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58031dea26947006e53c8b0ed13652dd0bbd6a4d1a356ef19fe080ae3217638b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:03:25Z), 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/QM4TW1873105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd979eeaccd2d8e128091bd0c30a01b554a6c49f935b31534a191d4e9489fe7b7. 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/QM4TW1873106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb626af8653ea36b3465636675c062c7f3c639dbb324d62dbf95bef50d1f33162. 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/QM4TW1873109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a2fa24fbdbf092035fce7a8d38ede357393d66d06ef546b2a5372c8da40b60. 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/QM4TW1873110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6578123764f6b950bd3c4bacd13bd9e6411e118e099af0a4d08ccdb16100b42c. 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/QM4TW1873074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8498b8fec196230bdc76cb470e158441cbc4aef951cf7057b95291bd3b0399a. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:31:48Z), 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/QM4TW1873077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b93f374118c1b5a4a2557bc855ecc56bb836d69dfcaa3db39168186e6e9d05d. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:22:43Z), 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/QM4TW1873079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83090a681f95a22e659e64dda51b98c07e3834b57602f4d21e0ccf18706267bf. 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/QM4TW1873083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfec0343fe621c19142c57ab28b6e91a49183437ec9ff85059f9a79bad6447e. 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/QM4TW1873084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa366e00570451bcd63a58ab13b614830e6967894f261110a4a20af5c1194c595. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM4TW1873086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32205ac32cdccbf5d5e8cd35de46c86e2d07ce406d90c60c63f36ab27986a36. 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/QM4TW1871386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe373175922be50e20577a37a90bebcd9030ff8cd7914f240710f18431bd5ca24. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:35:17Z), 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/QM4TW1871635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ff793b383af35e04d5c0bb9202c760e2bd631983919a43777ec3c71ed48074. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QM4TW1871666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30efd7161e16d0a5e34480cc7dfd8374dee0cdacc6e9e0a1e80d5b288da33d8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:10:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1872070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425db883049c6a5007ad65ddf992e86d2120d7443addfd232563bb3c877b60bf. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:12:09Z), 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/QM4TW1872072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029426129ed2e5dfe4a59d9a1fde58d39ef566cef59d91c8440717db07145a3a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM4TW1872076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ec92769a22b0a30698c741e7f4850f93f1ae8d7093c2822f6f18c61e76ab3f. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:22:36Z), 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/QM4TW1872077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7acc6f567db5c10ed7a5f438db4fe24673bc46d3fcc69d9da30013ca95714d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1872081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e55c10a0a50b3b25f7e165a765e496580321573c901e446da90fdb05df81faa. 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/QM4TW1872082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57eca4001462e56b5791ec5d13a5efecb0201c8d5c239d85fba566094f5b166. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QM4TW1872106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ef3c239be2f0f147111d0e4edb9a64201f60b0ad54c4ee52d7212d769dd515. 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/QM4TW1872119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75281a323b9faa8b6e73e7fc27f13c8dd3fabf4e1e274ac8e9b4b537941ba90. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QM4TW1872120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f83ec736b4746b7c24ca31727a0e38abfb042656f13c8c79d8a18f38a608b1e. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QM4TW1872314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f06545f235c8207752121c546ce1881618f8300fa890eff56b30b86f6a04638. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM4TW1872318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd41bf93ff06505f3802bd2782a00217c71719cdce52389e14f3bca5308bdcb8. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM4TW1872319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830a5cffb942c4d66bdd076a1c9b5ee51a947f28e273d9e59149bf2147c5383e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1872192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa11a218b1e9ae75df00566e7fcfd07267b20ded01faff00afe91a898aa802d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/ES6102124603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbade8775fca5a155f41c1760a7f8a2c553e2d96399406fa9009edc3bba6c98. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES6102124609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f20a1e45f147e500566445f755d6ca6cb59b2671e0e2dcfb751859f05fdbc69. 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/ES6102124611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a4ec975fa7eebf830e811a7e6554ab4adf1876ea66976b954a734b3f58c154. 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/ES6102124612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb8ed2b15da5bba3fa4341f96e25f7928705b5f0e11b0dd3f88cd0503349619. 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/ES6102124613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5de1a74041d863181c3c9b47d9644d99d0077a43efeb33aefeebc0face8158. 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/ES6102124614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4a9b1f30a8b3f527f29c37e0e17b62dbfda0674d7c29849d002efe75062c3d. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/ES6102124615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32f161fa2819bfde1127270275c6c47c0e87def701f2bfb99c4c1fa00c5313d. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/ES77F2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66624ef943a30eb4f938962ba31976f3e33c468678f42a98659636e89ceb1aca. 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/ES6102424619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2553e75f56c6ff34f13e7de153e253a3fb4ae2bc87af2a8c040acb0af4a3041e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1513543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc86a2ef2076426a69ed01f0a022ec12a8ff80cbcede72d00a0a5bab2a58b088. 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/ESA092203286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2553e75f56c6ff34f13e7de153e253a3fb4ae2bc87af2a8c040acb0af4a3041e. 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/ES71G1513543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f3231ac74f57d51f7b9f99b23c8cc39ceea2b2d37bd268879f1215ff5729ac. 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/ES11D2300826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f3231ac74f57d51f7b9f99b23c8cc39ceea2b2d37bd268879f1215ff5729ac. 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/ES11D2300826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd016e1a7d9bd2e450b25fb48b57895957028c48a40b193ec704319972a06745f. 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/ES6102324616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb094ed63db14eab3d5b20ea8d0eb8cb9ce214ba4a5ab59ecb4f50d4ace076589. 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/ES71G2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24898c7fb2299e51c0ce1e2afedb6c11ad1034a48af1547a099732917d39b46. 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/ESA011513229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e25eee5b7805a55b1ba6092be2f2a2d29e83f14a236eb340570c1518969d9f9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8021800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda208e6cf2040e14fc9a8c0e69c3fe25bf6a9e14c7948d89ec82e286f68bb5b4. 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/TCAEM1992750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94844af83794e965285494dd927b44f5713b8082e8c4ed3c324ecc00687cf8df. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9N2236536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828dfddfe7dc265f3d9b6ae725add23bdf598c4cea55b46d3ca170035aa8ff70. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES6081441605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72ef7197ffb19cf7ea3cb69072a2bb5219798afe76b3f24abd6b5fa46c8a9ab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2222548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda066a6040a49cedf1c965fd654eafd99bfd0741ba8b3dbbae83c24d78111e47. 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/ESA011800497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade2a6e6be0d3db0006a604c401f4c19f0ba4340c50651c30e8c9fe50fe77ca7. 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/ESA011718490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0450a9d7e5f7bad45353aa71402b3798e4a4ad73ab94ecb3224dcb228e7f16. 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/ES6081941308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c85bc584f6943801a4eb9a9479ec9a9727a9f9772138ac8832f8a75fe62cff. 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/QMDA61367390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe5cccb8180df00291e39787d79a14b22f89e2358af70f3a33f3ead36bfeb09. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES25E2200007.
Black Is... Beltza, Ya Se Encendió la Mecha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f39d497af30dbfe3995ef186069cd4e14bb3ac1524bfdf71c67e0eb119539af. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ES7311600121.
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