Hefner or Heffner is a variant of the South German surname "Häfner" meaning 'potter'. It may refer to: Hefner (band), British rock band People with the surname Art Hefner (1913–1988), American cente
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 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 0x1f3fbe25dd3124d440c7e7859c6ff58b5c5dcdd498f4ebd06148960daf4cb01d. 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/e346b9ef-2665-4328-87ce-370b647c9ea2.json and https://artists.proofprofile.net/proofs/artist/e346b9ef-2665-4328-87ce-370b647c9ea2.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 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 0x3d156a990ef64560d28ed9652f895fe781603037237aeaf30b67eacfcf4f612b. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/NL5HJ2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c1f52dddcaf1b58660efc46fa533949f4a0468e1a81f6274adf1a0e981d249. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BEB472000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe733091a6466c07656830ced1e10de79f2d0787bf8aeb63c93f790c8ae3579b6. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/NL5HJ2200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa223776e75867ab0e36c5f9fc1edefc476c7e65a2f6ff32d097a8f1b9f67d484. 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/NL5HJ2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a60239b932f17d83ae65a0b0568a193fce87fc0203985be4c2c8c59dc45b71. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/NL5HJ2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4365be368733512e07e6ddbc03757147a8032fed40450fccb5bd8c20171d90a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5HJ2200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d42515b5662c7389ff7d7f5399dbaa2bb0fdfeb216ce27471ab003b5255145. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5HJ2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39787caf2b6974798f6e95804a81fc43147154069faa97df858e7d693d9c9055. 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/QZFYW2014574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4e1a531ab6c38166edbf26f57fc462456ec9659cb5e45821fc983fe5d6a5ea. 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/QZFZ42016645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e928833f5c007ebe006929682b51493c06c3bd5413346dc692e676af876348. 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/QZFZ42016646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e28f47a4c85fdb9e4dc61d4f3fadb19888a4d0162e0c795734fc186d089ed6. 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/QZFZ42016647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bbf36ecb711563684833741a1030a79010bf197db642ebe5b5ff2fd9e05f41. 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/QZFZ42016648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60bee4f9ac5100763e7bc810966accd0c4ce804f64b19e2226383c54389e577. 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/QZFZ42016649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ab3e52a69b3cced914d028df85be3472bb8365374f7eaef0fc740d233ebca1. 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/QZHN41974562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a39314d23f90cb94f0aa8bfefea2084772a4004a93adf364769e19f447566c9. 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/QZFZ42016650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9468699382ca2c4690ac9ceb9dc591189a123a965708d305aea7c03bca0f1750. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN82489495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e26f2290331292f3094991ae4ff53040c17e68001f270951a65305dc8fa3b9c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2488791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110971d7bdff22abf7e50eea10afe8dcf16ad52c5fd10661649c3573bb872019. 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/QMFME2326706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758b9908e4f59d114b3d0699a12a800ae37fe5462ad15c5f4ce0b86948a11620. 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/QZES52320149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7f9e0cff5e8cb0dd8c057a7d9c1e8e3771b42efa15a01a0134d3fbae52a46f. 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/QZDA82205097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a60239b932f17d83ae65a0b0568a193fce87fc0203985be4c2c8c59dc45b71. 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/NL5HJ2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b0659e79887aa8b70373169bd62c9f6b5fd03555dea118dcea3b3d1950cad8. 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/QZRP42125569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3818eef9928dcf94e9d3db67cda5bccbf9e8f29d3141b9f2e9082cbbf6601c80. 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/NL5HJ2100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d79f09ec0e45e461d8317bd928ef4c83ed6e83624f612d3544aa7df1145989e. 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/QZMEM2100867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0d8492b7c070e2e9e990016c716930b9b751d7e401a30bdda88daab80adaa4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62162221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce23483a44ebf915bac8f8fbb14f29af9a5f962be521ae6b2f39b86635db126. 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/QZHN62070335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39787caf2b6974798f6e95804a81fc43147154069faa97df858e7d693d9c9055. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZFYW2014574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ab3e52a69b3cced914d028df85be3472bb8365374f7eaef0fc740d233ebca1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN41974562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2216ef65be156e8858fc8826e91e098f1e3882dea0ea41b7925e071b37521fe0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZDA51978289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42699a9aa8936c92b23712dd47c05e4df14ffa5946f31bd5bd91e1d5b22c8c36. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZES51944583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877fff053aced0e184ca681f739d3c3eedef247a2fb536c3cffb4c0d08c2cf3d. 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/QZES51944584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ba4924bbcb135c6b1069526c22a87d237965d6b6092019b515dd1b4641ba5b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEC1923603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2216ef65be156e8858fc8826e91e098f1e3882dea0ea41b7925e071b37521fe0. 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/QZDA51978289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14eb2d9139629359d445e6caadfe01531f5986bb653a390d9d43f8b3e38023a. 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/TCADT1893997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386f86df9ae0c2ca8ff2ec7fcfa3dbd0cdc04739e572d6fa8d4fc96d7e7b3502. 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/NLG662100265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7edf4e8f0a52cc0ed7d05af6e9a1608ee5de504c9b9210834b33bf3d4409cf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG662100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fcc806d8d886bec157fd3a14e433595340dfedd0a9baf41c415fb9721bdae1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLUM72100476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa664f284d5876bd1662e3a5ddccf8dd38fb193e236388fb1cbd1eb275e87d7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG662100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5735aca74b8680efe9ae87925ac042f34d78819cc3336b8f355fbe6cf68aa634. 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/NLG662100275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c6c7509905e2165f0e2de1f776cad0a521b9fdff26057f3e88c621a4276e52. 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/NLG662100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e09279ab0a482d598db612a7f2437ebe769892af80c6a6c0786b98344844ba6. 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/NLG662100268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22622bc4eef10fc5a9604208b0db5a4ab2bf68449900b01ae3a239b87479c72. 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/NLG662100227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c86c6a99807fc1341eff876ea75076c256670944d022dad53d6341bcbc0b9e. 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/NLG662100269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc586085a9c55c31c3d85a8b4df018a7406eb1de9255918287247b7fd2a6afd4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG662100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b414a13a5a9655ac598a5cc13f60d6466b183940ee422c3392aa1e915e3105. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG662100277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66efdf4245c8f5e980b74850500fe78d9ab3db0857a1ae8b0eca8a8bdfa865dd. 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/NLG662100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb6203fa125349353adee93a99b2cec91e6a946c9efb1d6ba9f0d529034a86b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NLG662100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1b72c3188ec8bd063fe619c8bb6be5701cec15ed67053880a6a96d8085342e. 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/NLG662100272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b120d4c34a048790b108f51f920e7a2dd33a52ad836ac6dbf6bcf27ef6e433. 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/NLG662100273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad36afc96644c5cff1487ba259f174f740a88e547dd3d39655f1b39e8fa4662f. 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/NLG662100274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678db7ef12dec6f4a7ffe843e8eab0e3273b870c5f03646c484317ab256400a9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG662100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303dc1687c926c1f15ec9e43df830cc7c19ba733d12984c7216e771acbada843. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG662000792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03eb2db12933cc401d37620c2070bbd362ea35b08ea06bc0b3ce0fdd4273f067. 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/NLG662000700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef541e3c721013548484c7c133d8785c41dc301c015ecad5f8a4a45be2be05d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG662000662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f939e7be4c97018c0269cfdc92f449384c8a1927d60ee60ca28e6bea361303. 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/NLG662000793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ccb662942b8ccf997582628bc9ca84a67cc9b413b21ffdc760348717618671. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG662000794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7a9fc774800f8ccb5f81328346dfb773ca4a98b33e831ee80fd08db588b460. 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/NLG662000428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97060f9ef5d804f8b3e389c55702f1f46a42d522bb04b2fd386be07c57e472ad. 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/NLG662000795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e67f70e8d260cbc838efcd5d971fbb806b1164c6f139ff54048e23c8f72be16. 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/NLG662000796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5fa0351701ad91d0026f6176f06cd4385e6724bcb03e0e4956b4fbceaf2c44. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG662000282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e108e9903ac5b1d94a3a1f37f62e072bfcd449d2007e155a6caa296c115d80f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2453349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99500bf3c46379b7fb55152a350d5d4be8b80efb33e667d9e5caafd4e11f457. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/QZES92144148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09895fdc05dc8cbdf5475750491d5ca1eaad4a88bbd37a09ada0e4daf71aae0. 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/QZK6N1933484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4483eea1a8f35b54f6d2b657accd9de0ebe64f47b0b69a1be3e4140719645cc. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/QZES51900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7477d0ca305fa7ef51dca0fa342d1b94f5ecf96a03bf46e8d61062113a049c8e. 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/QM4TX2528161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b520a58d7b03cd1fc325a3d007a8343cf6c18b848012b2dbede9e1c612a719. 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/QZNWX2033430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fb0ee6ca07438cdeb7155a03b25902ce7627826c2e990aae0ca934abb63e79. 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/QZRP42203487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b079680b2ea468be38fe2ce1e55ebd27fe98b462b05344496b5421fc2adf05. 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/NL3GQ2100339.