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 0xcf6b4b6daa2805bc2fb040e504e3f477ea49c460360f6f59043e6c4d76eef56b. 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/9a238a06-f5bd-4085-a565-c7c72ea4a5d3.json and https://artists.proofprofile.net/proofs/artist/9a238a06-f5bd-4085-a565-c7c72ea4a5d3.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 0xb4e9c8b79764fd3ba0838765750ec31755fa098e43e9131592232fbdb4236987. 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/HUA500900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18232a64d51f0e38db8e1f579ceb44a13a38c3dc3fb3ffe92d74b3ddadcb4acf. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA500900124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e0d5653690de338b571fcbb4deaf8a22c90ae47cab44c05d6be04e9c75862b. 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/HUA500900271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe386737e2c196815c5ed5082977364f347f5a8972ca66174ee2ec7694861114f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/HUA500900274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f8f32df2423374ef40d9a06b0890382bc2fcac7b51a3298d87b8dd4bf12c73. 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/HUA500900278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84119e9b62526eefb746de10c64db8e73f4e91ff82f8c6aa80ae623c56984259. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HUA761100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886ad4ef55301d6eede1695869a66ad26f67f8a38fe6dfdf7aa277871c8362bf. 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/HUA761100198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb304e613904369364d30ab6d330872c275c915eaebf0757fe5b5267937d6e009. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA761100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40c4aa7bfa1eeaada57b83f912d90f0182feae5cf5c4f3a6e5e68da8bf55fdf. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:08:14Z), 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/HUA761100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd369be4bf18c1a5289eba9b9b492f297399362f59d1fd9da782a775e447ebed7. 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/HUA761100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dd8a1ae5bb76332b35271e9f774800e4a7b8f13f368b5d7779acba725975e5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:27:32Z), 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/HUA761100204.
Bosszúálló Rockandroll (Lángol A Parlament)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d13bc8c47dfc2aeef141daab698ff46a4ed61b6c25820502cddc52a6afa276. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:09:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA761600415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f09fe096b80b94f3e9db4d295b36246c3bfa01a498d9d610d39ced424bd246. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA761600417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee027e3221816be2ad97053831ab3fad25bba5939ab778f24bcd5b679cc15929. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA761600419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30078c6c63d81cb9c2e5ab8032b1356da11b1ef7fa36754f63e0fe67ed5c51e6. 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/HUA761600425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52118362fb7c384765fbb778bc72fae3a17d650662b6e0e4307afce3a8770713. 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/HUA611700986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c31941d3d7b8419dc30010831f8ccbca9e79a7e44ee133499f961f08f89b13. 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/HUA611701997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ec5dafdea30d2f77517ff8853bd25fd1fe75a98aa9457597f95b8871d12430. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HUA611702003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1057f9419219d5b2b43947838bd4a3067b96540f5f98f32cf4f355741120b552. 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/HUA612021795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7045bd00de2d432c533cad2772b2f8723965f7ce4e852d09bd11e43148043b. 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/HUA612021798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806617c753f23385862952e47546d4bf3acfdf794b4e0296f61504cd2466e507. 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/HUA612021801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e6287efefb7769af7416b4dc597260093b77f96b13a123209cb734dbc70c28. 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/HUA612021802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15fd7297c0598103d11ef1b710a07d07956ac8f0fad1f41a25ec9f67cfdfac7. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:03:50Z), 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/HUA612401451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b87a359201e280f347aabf0df0d68d11be0e022c4e7a7c50a7244a1876c4f91. 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/HUA612404316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a568b17160979918d675d7eb8e61709fe468cb00e6527bcb26d778c14bb8c44. 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/HUA612404317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd23a3fa271056493a6ae8d996fd5741587bd25cd5b1952b110214ed4014f956. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:27:46Z), 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/HUA612404321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c3b1f54c932f968f282dd2b0ea42266db9af8bbeeb5d8d421fefdcbb758b87. 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/HUA612404322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1483c171505c1abf71996d777756c7f3d0f81e4e515d14d8a3aa29b71e6de9f. 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/HUA612404323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7486f565a932afc0f949faa1bdce5f17ed0c2966ed2c3b8ec903e5ebb22dc58. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:59:50Z), 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/HUA612404324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446af6c0378d9a88a531833242242de279a07f42eed18946ecef2601d68fc9d2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/HUA612404325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09620a5803747ee9404723185bad2e2cd9613ea90fba2706010c43df301be19. 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/HUA612401452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83772188233880acc64b9f42656231b35c672cd22df077236c587c4d80267152. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA612404326.
Eszembe Jutottál (Főhajtás Cseh Tamás Előtt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b753c46e9ad07f35a867fbe4cb2eec44fa118d6b8a5085af2ff8f9e0cbdaef. 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/HUB371200252.