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 0x310fae24b76595ea4b0f0ffb5d92f092d41727ad5d466f42f209bf297a749801. 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/d0216a00-4c7e-4c0f-bd7b-5bfc60ab78f1.json and https://artists.proofprofile.net/proofs/artist/d0216a00-4c7e-4c0f-bd7b-5bfc60ab78f1.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 0x39e47b0d420ea925795ba83bb720bf413755b4f8061d21ee959ec5a3d65d55cb. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T11:29:48Z), 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/QZGLM2349228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ce15054afcc6c3bdc5d30a0f433a16cfa91ca0b7fd2f754c8c54f8104eb8af. 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/QZGLM2349229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2740d3412c0c94351a1565b9c2a1f65660cb383bc01cdaf38575bc030af6455a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:18:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2358838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63464f6d5cc5f0d4c31d03ad8fc2d50c938479c74fbaf1bd9c808d8e2f265d4a. 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/QZTVM2381587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e736d4b3468bb16fdf0a16b6e0ed3a6cfd90eafe16b1ebd869b65c40a9e4746. 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/QZTVM2381535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d28d8dda19b08f8450a3240f26eb7ac40fa26fc581b94dd5a378a4239fdc2f. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTVM2381542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d43ef739a109bc27cc2bc8ca6bffcd2cdf66afdae6ff54e25bce6ed92d4a2e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2354961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65acf77dfd80e0e6b004879d69481614189274f1a3f8acaecd4974c41ffed097. 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/QZW9K2354964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7da3d72a89b546648266d1aa6d4e1006369781115dac3ce477bd1e293a8896b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2361516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955d32489bf5a1fc9e47b3d4c0c4201ff9c83cb90d8cf555b2068aece530de5d. 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/QZW9L2361518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3760498c9c511d22fb2397842c54fe2f48d2c04e2732bb26529356419f88e76f. 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/US7VG2494163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e25186b9bde8f337d6369efd22ee252545d72dd942b746a9444a0b31799bc23. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:42:29Z), 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/US3DF2425377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6303208398b66d4a1684974dc64e55f5f881885bd6d565cefd41b258b892fee6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:53:11Z), 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/US3DF2495157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde316c44d0c52df553284e2c77fd5d7d91ea777182dca1f514b1d323e45a63e. 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/US3DF2495158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2f955d9630766135b750efe4f47555588e41a98819d17135c4226537da7cf3. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:47:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2495162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fe7c34ff6b3dedda7f98a696c9cdce12cc7cd1c5264d4fed494e596fd773a7. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:06:09Z), 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/US3DF2495163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17915518250f998faa90edd1a191c6545eb09747cd36f960413c0590f96deb35. 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/USANG2419376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc064fae16f033538199f88ad5700ef2a83fb717dd5283fc525fd7cdc98c6786c. 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/USANG2440874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614a731d7584102c6ecc9ba84ccf387608f31c133db50cf3ac595d10f5e1bf41. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2440875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e3dbf22b4fac9580904a604178be834f5556ea5ee4f0416a2c3db84930e419. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:28:38Z), 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/USANG2440880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cde6dc2ed53cf9d28d14f26a68977d5ffd2e7fe08b4cd14e99087e9fb1f766. 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/USANG2455680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0de475765e43663ab4ad44fb16c8839f14b95d5ef0c34b562ccfc105179fee. 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/USANG2473928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572c780911a2d9fe6af389b3b4c37ba84f06261e41ac7a7d680b061778001e28. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USANG2473929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62835e4c8e3d6e6d5349fb961477a81302b5a56ae134938c1121830d5c94d6f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2473930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812c080cca0129de1e9e0402df7d382a200cfe71237b47f2e7646442e1419084. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:22:46Z), 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/USANG2473932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404d437c8a95fd082d70ac75eb36abaec5d8311d1df3f99088acd6d47b2b7657. 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/USANG2473933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23181a568ec221049b0e0950b37d2a6b53ab833f20b0a8b92cbd08230d42115. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USANG2473934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142c681b63276cf0aee95f62cba871148b6c772f4b648ec5894cf9342d225093. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:17:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2473937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1627d756e9f967a6d535b9453a74874e4c99a315099bd88658ac3257af515ebc. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:06:11Z), 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/USANG2473938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7578599f6695c1baa05ddeb7c23830b7aadca2d2d817a6eb3a32a30abb773b83. 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/QM3DF2403556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6f5f042ccf919bce12253f28105016c45b7b2b37b70263a15cb89a29763443. 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/QM3DF2403557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3ba1f3b9d7fa9f6c1982be706e6ce15870731fc0d52b6db98ff6c1dafc8b0d. 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/QM3DF2403558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104da0b760b8dff847c049e5f7ebc6d3f88b0c67af9e38aa326e4235405e04fa. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:41:42Z), 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/US3DF2517400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4d0958096db1855e6002c41db72098c5e64b817fd2da967998cf2a579f6f61. 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/US3DF2517402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db205c59c838a8ede2f8f5d3ab83839371b06e212af59fb0f51974fbbda1490. 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/US3DF2517403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c2ae615a144ad17babb0a456f30d6d6ff589f7f0b370537627a8cdba4e09f5. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T11:00:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2517404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2964de1bf6175a51c6f85f980fee18b0e2015f923ea88c950e233d891299b84. 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/US3DF2517405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0d7c10265aeaa0dded4f85a61265d35259b547de787bf36263b682f0911c03. 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/US3DF2517406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ba8ea72642a46bae4e89333c3bedd30bebc9691135b2d7429a1014a99eb725. 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/US3DF2517407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8f84664953a8152a3530e3bc6277b9fa53f5004fbe00e9504afa8dc888b70a. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/US3DF2545411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51427b640e800736726494705fff0540f132c3c332d05341abe2c7205b16c61. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:23:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2545413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811f2763db18befcce189ef1ef11970f2dbc101b9643458ef8459b6da439f9f4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:03:50Z), 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/US3DF2545416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715e2e2ae60773dde0fee9da36dea244337096933f236aa9394cf70beebf95ed. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:57:45Z), 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/US3DF2545417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2769cc9b104e12ab81900743384cfe8fc3820bce772389bb0f21e3c9f22ad14f. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/US3DF2545418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178c4eb2d00d9e1228b3495efc0d3d0dc0d5cbd066934def06d3c6b47ead63f0. 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/US3DF2545419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9618741ec3a37a9e571d9cbd31c95a8b71d3f4c0037e70fca347e9e890e20644. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/US3DF2545420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97980366b066ddfbd4f71b7fa32fdace81156457a51bf790f9e9a2afc5d779bd. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2584040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc032d7d418d6729299953ae5b45d19c23bb405de843acd6abb7aca4b08d5709. 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/US3DF2584042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f2fa291cf10512b4d2dbd7d2f8e8a3078905911a9432dfefeb4e4e8782050f. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/US3DF2584044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c88a3af7844bf68b21b3dd26307409f3e8c32960d89a9c97a25cffa6e8a2092. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2584050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66a6b9dd76a17ea3b519992642e62b3f6da64e265262073c16d00d04199f011. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/US3DF2584053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5555377b1f3f038485f9d4ede9e182b26fa560633f85a3f570ff61db165b44. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/US3DF2584061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc5551461992d9a50656d5bc2f7b50be83433deed0f5b382d58836f5631e4df. 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/US3DF2584071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ef998d8f4360e8d483db6341d562f823012fd1b1cf2a9e2ab80f52ba46f5ed. 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/QZW9M2362390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b026307d6232034d3e18e594ec4d0246c5f2f829a1eaaa93e8e56aa61c6b25. 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/QZW9M2362391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fe7b490920d3e1aa7565cfa9e3025cf27e47e91aae520b0b15b023f8eece82. 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/QZW9M2362398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8caf4628a83346e8676b515e9fa40dc24f6dc57fd4b4555c445f5ef37385dd. 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/QZNJZ2320218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700c74efe5e7efbbb7decf3a5bce382d24bfc015d6345b805f9f55395bb6732b. 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/QZNJV2473738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706f729b3e356639a138dc68933afefa1046fbd760bd68e3fe61a8b12fb9a2b9. 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/QZW9K2466682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700c74efe5e7efbbb7decf3a5bce382d24bfc015d6345b805f9f55395bb6732b. 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/QZNJV2473738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b335460e791df3c8fd61a3752d2b8ae9eab2ee6d429d69f5e9f765baa9ce7d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNJX2484686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0667ad7e2bff8cce511f351c0a3419a0cb664c0d6db395547a9e2de9c451839e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US7VG2591817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0667ad7e2bff8cce511f351c0a3419a0cb664c0d6db395547a9e2de9c451839e. 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/US7VG2591817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700c74efe5e7efbbb7decf3a5bce382d24bfc015d6345b805f9f55395bb6732b. 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/QZNJV2473738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b335460e791df3c8fd61a3752d2b8ae9eab2ee6d429d69f5e9f765baa9ce7d. 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/QZNJX2484686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700c74efe5e7efbbb7decf3a5bce382d24bfc015d6345b805f9f55395bb6732b. 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/QZNJV2473738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431cdcef76a8ad1380524728e531acac0bd96eaca034863f419b7bb3a4826cd8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9M2362389.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7b4649a25ece024639c5da50ed7f3cbcda687f0f098b3721d1d9de2353e7e1. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZW9M2362393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee596aefa76bb4ca97363651b56a602ea514b59b542e63b8a56b1aafd8dce56. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZW9M2362404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5765796bff2a0ad35dd2da5aaa7f55c58fd2550c749470ed9adf0b55e369673c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9M2362405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3eae3761997364de647f6328e28d8dc1af91241607579d4f9ef0558ad3ea0d3. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/QZNJY2431316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1657e99a265c7897949f00b422512909a9c8ebef16a224d102c3b4071fb5b2de. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZNJY2431320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1ec2a714b3ec3606524692c09bd0e6445f84dc4b727b368f2bec2482bacded. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2431322.