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 0x05960530de016a7e28f78f6ec7e766315dd5cffc60abdb698263999a45ec9eba. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4068bbfe-1d02-4861-a9f8-465dbca14915.json and https://artists.proofprofile.net/proofs/artist/4068bbfe-1d02-4861-a9f8-465dbca14915.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 0x1b3f73592b3ffb064c8a32fc02ad844586d5d085fbc20ab6ba59beb9a5fc382f. 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/NL8RL2556567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9542c9d5301ff002ddd7a246ed18e97d0c20b623836eefb0bc87ace8f647ed33. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/NL8RL2460729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3415910150f8444c176e34d4b3410171e98b4c6e1c97f5c2f0d5158a9dc902d3. 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/NL8RL2460731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc14f9f8b36820b6913b89ec4b2cb3be5282b2afebb9aa5c47a007129071016. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8RL2460732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3522f57fc721853c26431fbff05bb35b35006fb5c97d60267fac68ac77909de6. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8RL2460733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bb019c960784e86d1bb57183f617544ef5ecb9eb1edd199c8925c59a1dd567. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/NL8RL2460734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9ef7471163ae7e445fa985c453ccb286d1f49b02ac00be620d6bc611d39133. 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/NL8RL2460736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8ad7be57e2cf8faafffe72012db87f32d7a6e478fdd0cb5e8929858089dd0f. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/NL8RL2460737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e8880bd19e156bdf6fccb09ed7a26ccdaf6be71c6b289a6c4362ca24069085. 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/NL8RL2461381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41da51dd2d61e85c01421af76e28d8c18cfec3538470af3707a97978dd36b78. 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/NL8RL2459116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f4e9e4499f6a8150df3429bf49f72d19bdb81631656ce893151f7690e2b2c7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8RL2459117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2a70018481faf906c96e56ec9c9c3b1e986df42c5e97a8f419d59f24238d31. 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/NL8RL2439710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249a388984f726516cf7577637e83e55ea79a5da2cf3dc0cc7f583334c155d5c. 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/NL8RL2461947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84d41c5a8f941be4e775da2c1b0f0b86fc349ff57bb4f0fe2828a9d7d92f84a. 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/DGA062408101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a5c0949e31f7ed869134f214dbae3b04a140ed2b80e108b7df0710776d0eaa. 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/DGA062408174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f272a04cc1ecd7f7de1dcb4634d6e711ef35d56fd24a31887b1f5bf20f22dfc. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/NL8RL2439712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7074e6af584ff1c38b9e6d710f8e4561dd6afe667ef593bf77cfa63bd7dafd. 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/NL8RL2447805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1df5751f67474f75270b36d5258306d0bd4932627e64a2e8bee72fae542b3a. 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/NL8RL2447462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1a0fc11bd28592a93f07ee547eaea59ca0bf9c4e3d5d3f51fb313b40a4fd28. 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/NL8RL2458546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa171229bc950abd76c8b2c3cb7edc71e54e22533e4e0b304acd4bde782aaebf7. 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/NL8RL2458566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7229cba096af690993e5f0605e174ad815f29cde12f65599a6030caf89209149. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NL8RL2458567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cc82b019e201e62186bad59ad158452ae3ec1583de40c6bb49b1fd156e94f5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NL8RL2458569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389100d49bd2ec8c83fe254ad4ea91284274e6f780c26f6b6ae617c59bb5ae45. 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/NL8RL2458570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631cc925c109ea0243b20f0411d9f1ba2a15972e25b6d2a1d54da184ae8996ef. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NL8RL2458573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe73d847a600a2bc869b7ad0da5e7abb8bf6b96dbbd95ff32569c0ab3243f92b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NL8RL2458574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3892f3cb5871c9ef1c5ce6890424db0fb07f89e838c45e20e101177d082b2b39. 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/NL8RL2458575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df7d13b0b15b6623e26879582caf67a683ed8ebce27caf1be1603fa7d877043. 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/NL8RL2458994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7255b501ea29178e4ed66dced46b16a39d18c2d98790748e179f81bbf4cee89. 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/NL8RL2458578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f37671d3ee17ffd8d110b4b69c9d7e3e43ae1974837ab3087f4d9ee70bdaa0a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NL8RL2458579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0132d3c69565b4ca9b7c1e133af7b1031302010390acc30210027fec6c0756. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8RL2458580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e8454abeca7aa91c8adf54045bcb921c4ac88c46366bde56297d3b1c02192e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL8RL2458581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9812c6220e0eeca7f57fa646cc9af222958ed5357b555107476d6c866ed2047. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL8RL2458583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09441b4cc9c891c48978a4d242827de68ccb19dd36a52bd58e079f546098d469. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL8RL2458585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e8e2baf1e5465de33175ced61f94532a00ca0bbb1f0d130a8f0d5bd26b8b03. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8RL2458586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c08aa3fbe5fc59a54a14e44024c4519dec5dcebe8d4789744d229881c06970. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL8RL2458587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a8afb320a6423502573d635970ec31fdaa7c7a699453c185dd9dab1ca12131. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NL8RL2458590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30d29c7e3d75502afd6c4703dee8c54a831c087c8461bd8fbd9d137209bbd8f. 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/NL8RL2458591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafd8d2ee78649ce8f840d543e5816e637376f3f90ab684ee4072912b3eec48d. 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/NL8RL2458595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c0171d777c65c79b01f27abaa33773e6eecfb525708ad55795fa3bc8c04fef. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL8RL2458596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3599976a98ab0de59112264b7cddece90d1fad93bdb28c791516e7258ac4c981. 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/NL8RL2458598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795c1e1de74835230b4c6cb0388a0bf1fc04559a851883a2e590b86a209c78f8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8RL2458600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd21fb1e3bfa093407d46a0c22c16eceaf696bee9a3e5f6e3855222b3ff4cfd0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL8RL2458602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188834417f1349fad6fe268cecde24ee5618033de5aba5a2620aa980dab26612. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL8RL2458603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc243be05135002371f0b58c74a724acbaaac70f242c44e774fda269b9123ffc7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL8RL2458604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dcf0da6f7af6c0e4170eb6021765e8d1fcf8caf398ebf9cc9a2c3154c52fad. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NL8RL2458607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb19c687f472e023a9919c80f14b264a67f000cfebdb210558b3cd1d67e11d9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL8RL2458635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79505d23d56c68e062383715b6b95268b9cf340dc9ac5dfe75db247a0aa0a4a2. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:21:22Z), 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/NL8RL2458644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9f79da2d0c631283767dedccb6fa9b6dc2715fcf06b9e1b0da9278fffc00e8. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/NL8RL2458982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0062d73478ab3b8f2d1e88712a0842418686a92bebf26e2894f6f67b5e32eb. 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/NL8RL2458571.
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 0xb0057274ff55e1485466717271654adb1af08dd1b3b9d15a82afa7c9deea1857. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/NL8RL2458572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0695fc0a8e6ab2f8b614e0631015e2dcb98c882d5b8086442c9db835abba3ec4. 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/NL8RL2458576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0910ab513194a23f783e5c08a8f29f0ae03bf9a221126b24a561372941d3e778. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NL8RL2459086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9e96d4adbf9c148c380b18ced0373295202a13face80ae44fcbd2e18258907. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NL8RL2458995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aef348af217b628bda5c974f40a704bc9841af3f11adb470004e043263b4ee. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NL8RL2458577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6251f14dab8a1c26258498b92dc6c1ed29eece9728b6543b880ceb19f7e827f5. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/NL8RL2458961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bc8f030dc6b4f39b88a30b98a2b3d0729a38554e673bc6539ddac30b794992. 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/NL8RL2458582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462cb41f38e2cdeaa44d368e78df3f774ea3cdce282c9754a7c3274f1c7169fd. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8RL2458588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da28b6aa523251d8e562d4aeb56ae84ff57788330da6072c421d49860e565fc. 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/NL8RL2458589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc3bb250eb66b19e565ff38dde33d57ee590499085774ab0e333528aa366a72. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/NL8RL2458592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc561199eb691088039bc25991d922badaba44622028e1aac916d406e7ed95e80. 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/NL8RL2458593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f11f2bf4ab6a6318e829fba82d4fd401700c04e7a46197572f9a180fce82ff. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/NL8RL2458594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2608ee39578abb1a49528f7ab4f32153d05cf0ce7be5066ac3e17be945b81ea7. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/NL8RL2458599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d4b53afa5c18f3bd981895cc5d383bfd251899f672010af453c36206cba6f2. 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/NL8RL2458601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f421ba9c90225a21c2e83f33b1a658348aac533254bb2e1da148e1d5577cac. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NL8RL2458605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547b1cce6acf098bc1ebc234e72afefff807045f770b3e3bc712a001c20725d5. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NL8RL2458606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceebe0926da9a169d1dbb0d75c8b1b2093f8bb0d43d9bc923f28bb990016d37. 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/NL8RL2458608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dbede13d7b2b7973cb42b64af5161fe5686c67359db2aad233c6c331ec048a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NL8RL2458609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32657039dff911db155007a3e2d2f3505172e33e20b6f90eba622b920b7e97c7. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NL8RL2458610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41571c6005e5acd6e7b2f4be21ef40bd22b13b39c2794006055b26d8000a6d8b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NL8RL2458611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256b43e6aea529951e68627fc987b8976936db62feb562c2d8903426aaa90eb4. 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/NL8RL2556553.