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 0x15c240fb1bbf12353661520a1580c93ecba54fbc82ade6e175aed84c69722cad. 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/8c8d224d-a95c-4ef5-ad99-42698576225f.json and https://artists.proofprofile.net/proofs/artist/8c8d224d-a95c-4ef5-ad99-42698576225f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Батько наш Бандера (Рускій воєнний корабль, іди нахуй!)
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 0xc503bc926d26dd900ff31b83ede1bd706580aa26bf2bb756a73f90ca8a22e85a. 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/GX89G2235374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83946f8b225fc7e780f9031ea2d493fdd01b731ac291c81cf20680a443b0f3c3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:10:26Z), 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/GX89G2235408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb335d59c9323e64f18db8683049cfe8fdeef4539597ade1f26cbbfd3c2f3832. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:18:02Z), 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/GX89G2245014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f32c5c69a7cb6b86a275a2014bba26bcdd77c038633c23015ffe1cef01f8b37. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:57:19Z), 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/GX8KD2219024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab233157efc50f0f9d496bd023c626e5dd059df62315c8060b89166f2b729ac. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:12:36Z), 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/QZTB32284051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc37a7348736f63de7c4cafe363e6a880306af39293a0a4213d9067ca87ee88. 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/QZTB92223302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91706c09e53e31e5b686d16da86baace4d67cc5860dc84f4c88fe7300c8f5cda. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:35:05Z), 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/QZFZ72312151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c316cfac47fb97763478f1e3ccc6a32f50811dd01cc4a98a77def0f8968a875. 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/QZFZ72312152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35db1f434a15bf0dfbdf8bd56c397ae2ba057bb5173da6dd85e86226c6e43416. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:49:49Z), 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/QMDA62363016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6410401774ddf580b52d71925862a4422ee2f36679a76f449e53a9c9a2f4f1. 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/QMFMF2330451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183c3172fec49083a4e0d3fc50e9da9a3f43f837b0d9732c5f5e780f5bae324a. 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/GBWUL2457305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2993f4428a77066083d47dc96b69ded8d1b2d501e30efc413026044fe79949f. 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/GBWUL2457302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8b62d2e88988276e3ddff2a43e2bb2c09f9e440a26b832d52567e57497042e. 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/GBWUL2431540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4298c1c5cab5e7d05d01a20a376a5968fcd12bfd334ab429b62d2ae58e1cce49. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTV32447554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83592c025a3d58eb5c0d1ffb2909dec18fe0f999569fa455aae5b327729988f8. 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/QZTV32447555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0572c48f2c7ff8d57e17dbf3b0ebff1ba71a399c66235147305e9c3f5463b1d5. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QM6P42437831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c19d3d4338b6c01ab823755f608dc4be3522bb5e85fd453a3d1cdc46d4b179. 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/QM7282482680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3c2a9b28236e72619b030b22d846077b36bcf7f92ae603107658ada5a179b1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QM7282482682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6df6c6263abf09cc1ab4c2329f7417cdacc097b0aacef904e19f27c35ea3193. 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/QM7282482684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150cfc0c84b17395a5e477408869cb9791dcc49273294c1039fbf42fdef8c0f6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282482687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0c379e7e5dee69f54779d0545afd89c5c3dd713140a1cc46982d123046093a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM7282482703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45662f842923c9f29cf1718df312f40c70ab3df86dc7eb678068b9840c0e562. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:20:21Z), 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/QM7282482704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc412012aae1a05080e661f7cd5f994269f7503b63bbc826a153ef45f284d765e. 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/QZWDE2424753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053ac08d5979e8cee717d6dfd0ee3fa1f924119c3832c0199337ff5c6620c53d. 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/QZWDE2424754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b1470055586f5d6094ceaab96dc0bcfeb1eb7abe48e009b69d3ddefaa2a30c. 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/QMDA62428483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfb04ce4a15848572527b9cdb7695d61f270cb400e8b824dc41e04c6481e78f. 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/QZZ8A2418940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac4d5db73c8053c73fd904dbdad764e3bc48c98ac50d01e5e1254610650b256. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZZ8A2429177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d50ac306e4a3a0467ce3a3c8c438835552da4315dd4162d61b46364cea228a. 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/QZZ8A2429179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00cd0448526b9fb565959e77192fcddfc3d62102fb8fc1afc3c882f53ffb9bb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:14Z), 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/QZZ8A2485459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e413832b1c3fe89b81f413e156d7449842c59e84ce52c2519329650d053248f. 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/QZZ8A2485460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e6531b2c88010f00f786ba8651f9530ac0f0aec6074e5263381c311027aad1. 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/QZZ8B2408727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda66f4383390077d8b53d48ce4882e4e0c1d5a88c5fd102588a41e7586446258. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:35:08Z), 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/QZZ8B2424362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b17b0a4f6b5b94d063ea5b7d00eabe6626c2853bda4ae946ea5b923b76837a0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZZ8B2424368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb51272de565e19858d8c7a2e0700735f859fb2934da817d92e2a62c5e888545. 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/QZZ8B2457000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd263f0688ef7154fe9557220dd3db03b626eb9949fff4502a67ef321028611d0. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZEB2421365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6550c162dd540e1c3f428ef03506a7e3d2eaaa778f6df0db2af2dff499da765. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:55:54Z), 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/QZZEB2421367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de4f908a626371cf26bc1eff59c84e674ff0d3eb422fa19f11f1df93a8c5dfd. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZZ8B2440077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc056ebe4d18b2e3412e485571ae48a945e281fe2347817962fa811b3913e226f. 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/QZZEB2482691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701b215cacbee6d1cf9a184b3b837fbcf90a5342b4062db55719d8ad7062a837. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZZEB2482692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51ba8ddfae6fdbb2b06c631f77d220f3d0256f09a44fc5540eef372c4b343cc. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:15:23Z), 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/QZ5FN2587286.
KATERYNA HARDSTYLE - SUPER SLOWED + REVERB
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a2e77f296e363d1a99d2f6c7305e304a6de9b31109405ccc9929998df80763. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZ5FN2587288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4147a77b3440871158830c9627c03b8a0228b2b7bb3decda26f7a9cc7af68c. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QZ5FN2587289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9846bca009766acb9c6021bf1f0845a05a0054c322797c13e97f204ed9af4c23. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USLZJ2559383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9fd1b2d4d8cc3a46db30809fca904a9796b6844fa186294519e372b96d0837. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USLZJ2559386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9846bca009766acb9c6021bf1f0845a05a0054c322797c13e97f204ed9af4c23. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:54:31Z), 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/USLZJ2559383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9fd1b2d4d8cc3a46db30809fca904a9796b6844fa186294519e372b96d0837. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ2559386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017a02517fb4c14646638a4cfeb24056c7c48a046f18a3b968f55e669c898952. 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/GXD7G2537226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f3265d8866b4a6de60a7560018b895a905200d9ccbfa2304c8fa07d717f08b. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:52:20Z), 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/GXD7G2546357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753a431a67dfd12c196b38cdbb235413266f9e259d0c6066c76260d55260e70a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:38:56Z), 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/QZTV32534780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e2bd75da6d27b048721e5cc68860b08b58cfdff293e4bb5d3a26414d2a12d9. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZTV32534774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a729ef4dc375c092b2b5f7d9b6aaab403034b143251ad2e50c0571d532e6dbe. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QMBZ92544291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb7e562058e9a330ecb6a630d4f2dbc444ae998d4ab068b06a2884ce08a440e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:39:56Z), 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/QMBZ92544292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054661767cc563cfe79e76a8ec30c737029bb2d117c6c79cf89e7d527635a2d1. 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/QMBZ92544293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2009e356303c8645d9ea293f6b25a247132234c88b0691f24c7f96c6577ec9c0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:52:16Z), 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/QZWV32507791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e2f27b6908dece01b622dfd589c10f041c9977cc95fa1d78a0a2fbe80aaaed. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZWV32507793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cdb568cadaf66bd82baf75ff07564fa0a5db12faf0a7e80456d5ebdc41c1db. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/CA5KR2541190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86836d5add81123ddf39dcef92fb700c6104c0434b32821d8d60b04b1352c988. 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/QMDA72521935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddeea5fac94df44622212f13a27a8fcffd5ee8a3587122c82a4cf288bad2453b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWV32578382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e45dcc138aeee64729fe1d3e5256b5ab9d5a4a1ba66716b3d0c23d4eaec9e4. 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/CA5KR2586327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b736bdd6d58945302157db08bc4782d04738b3348ca8166574fb01c5f7a9ca4. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:57Z), 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/CA5KR2586328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4c40cf96f894adce9cb5b54a525caa6464d21535257c7b4642c5f361cfad1f. 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/CA5KR2586782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765dd57a62e5ed7e5e7edb4346d8873475de53c464b91526cb8a1d85a2ce6719. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:23:35Z), 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/GB2LD2510426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bd578a53dec7f79cd110cb9c32b1bf7e7109e80473047223ab5f28c1f36a6d. 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/GB2LD2510428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c1d96591428d36b481354ca2b18add0a0d726a6cf2e85d9b6f0a94c1a8ca3a. 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/QM6P42322622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb4dba91cd8a231cbb2af1ed04a91e98239c580e53ca0ac569f070a71670b3a. 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/QMFMG2331646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e809acf73942a24b277d4020f554781f2d97e163d0f153515dedce27176ff61. 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/QMFMG2331648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb7ce469b261b0bfec94b6c11292637031e7b3184a631a38cd32c3997c74f54. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QMFMG2331654.
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