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 0x7831d20b8bbb7addd58eb098dc2ad3a2d486d5e6a767fbfcd3eb897ecec8737b. 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/617caedf-25e2-4949-9ff8-9be8b56f0d9c.json and https://artists.proofprofile.net/proofs/artist/617caedf-25e2-4949-9ff8-9be8b56f0d9c.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 0x6274871b0940d1108d2f596b0095a306e04914d81a826121b54ad87276c3d0cc. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1763353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50cc079b6f7c5b5bee75fad3816295fc696083e7689cfc09c81e4300da96670. 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/GBLFP1763354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee0324db985a542b641ace977941b16ccc4300c55d19096a1562061b7590d44. 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/GBLFP1763355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83f186908c14a5af0822c89fe19bd7cd258102697e690a8474e44e501fcda32. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBLFP1763358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236d8bb353dd3eb601c038024070823add838fa3a8c1de50c1a6019e57098232. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1763359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156bff4cf6f883ee64ecceb650718de8025bb4327c7ab78f9ff18fc0d53e040a. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1763364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddecf944cf642f2af906f5a6c607636d68bf7aa4bf5b33349742dc2ad7f9328c. 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/GBLFP1763368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfc6fae1237a549f92b5100328c7666aa84b31d2fcb57622efead1c7fc0838c. 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/GX53U2026548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20402cf2376cb0ce82282f2fec0a3ed9728b320e034ba4c8e8cf63724d7b1bb9. 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/GBLFP1763393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec3b64caf3edded070740406a7edceb079775d2c315be2a01308e6f62fa416d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBLFP1763400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1247a8594da3b245ae8ab38bf05a19a38c64d2975c4533f8b9808bc90dd57dc6. 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/GBLFP1763398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038b0421258715ecd28e70e92dcd4ee20439f9d138c225dd4ff2e86ccb114b9d. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:20:13Z), 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/GBLFP1763401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa282f73688ce70d14b201403a652cc3b3f5333368cd529c3ba56a75b9ac21f4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1763373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b842801304f71260f57bbc12ea17c7511d02d4186512aa9d9c5ec669a3173b8. 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/GBLFP1763375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ec2dfeaaf16c467e1bb8b02292a46bab17019fd47402d7e6437e480436e95d. 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/GBLFP1763378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc156fdd05c1a718617ebd28e58aaaca00ecb467ab0463eb744c43722b4a60c3. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBLFP1763379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4709f33922f4319dd09a354b060c4a0ac8ea7ce77d29c910db61782cb1df88. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1763382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578893884541169c2a1241b089696fd1af9c4af6a3734efd7306631cf9aad69f. 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/GBLFP1763385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9dfa7f2b486722c59267bc3ad684bd6821ac870909c84bf1ef796decf6b4c7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBLFP1763388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d171605f3ff2fc7ea89b15388d43e20ab1a1827b9ec66351d9fb9ff6d18658. 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/GBLFP1810848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb2c2f6b9c09c7a267886285fa26b47e938fc53181f0aeec47d0bc070b25a68. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/GX53U2026947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95d3cff9d87854596db5b6ec79f78357a1ab8b8550ce50d7418db28b8889dd1. 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/GX3Q92036990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0391a23617854ab6ffdc7168f5f172fe123a59c819747d64d339eb69ce294db0. 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/GX53U2026923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3c54406daffcb4b78b9d29573c20953c826241671c132a83085c4e7cb7ef49. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:18:34Z), 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/GBLFP1763407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd90e4a42b8a547533162f2ba812e68c52da439cacca5dfd99ec4b04563cb4. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBLFP1763403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51139d41c49dba77c175aabbcf02cbb9a1f46ccc1b383251b6aaa778376bbaec. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1763404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bec3e897d4c9126887d5b736280032eac9dd5ce17a4c609b9d4befea9899035. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:26:24Z), 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/GBLFP1763406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e32e3dde964b564133706b1fe21961b5b4328fa3812c89488140ca1c893e436. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1797491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd2c35a9b08f26dfee059dd23702f175d74c4c52663caf39145895e9aa7e77f. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/GBLFP1797490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902f733769dee5750cbce86c60595bb87a425d5ff6dea4ddaa9e3e3bcaaea1fb. 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/GBLFP1797489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacace87df4db11d6e328562e69212d44a3a847d7c00c77014d390738383f686. 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/GBLFP2224095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb15b71bc3853536d3b993bf18d7745f3e7b4b682fabc87f123ef7c58343ce96. 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/UKXN22246713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f690340eb55e83a6e00574ff611140dca3b3b4dfe27ebae1ae21a22383b634. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/GBLFP2373381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fe7b7cf6b5b858bdd6bcfbf2ca9299b7a5934150a52deea510ab065fde41cf. 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/GBLFP2493991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548c245b72f362082cd8b77087a6eb4af0aa082754cfefcf7766b2deba342f71. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/GBLFP2493992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96bea0a9a7fdf600d392c24ac91bc4cdc797f9ce4761cc8d8260c7fc51f2706. 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/GBLFP2493993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5febc8b6a43fa37e08ee6de9c9d5ba8ef53b0e9b95821591b4bfd77eec4213. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:39:25Z), 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/GXHAF2578900.