{"copyright_id":"0xea3d936fcaf10338cb97c7b4cbccaeda5fdb8c3d5be6a1700a7504259a6d817e","name":"Andrzej Korycki i Dominika Żukowska","registered_at":"2026-06-12T18:33:49Z","symbol":"NIM0337675","token_address":"0x48f02149fadf455513d4bd8566259ad4de310f9e","type":"artist","uuid":"ef42779f-0bff-4e7e-a170-9ab320dcaba3"}
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 0xea3d936fcaf10338cb97c7b4cbccaeda5fdb8c3d5be6a1700a7504259a6d817e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef42779f-0bff-4e7e-a170-9ab320dcaba3.json and https://artists.proofprofile.net/proofs/artist/ef42779f-0bff-4e7e-a170-9ab320dcaba3.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 0x9aa3c5a888022f9485cd88fb4ef58e8cc7fd6ccf45f01a1761aa6e65d6b23a0e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:35:30Z), 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/QZES62132781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33167eaa5a8d6c6ec22a46216bc124248f12f1abd77496e2aa3dea08380bca75. 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/QZES62132783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac5b47de80d92bca722c5e08d58886449d3a11f80ec47721ea91164e2b91494. 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/QZES62132784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d70f14b1fd892819bf9f5f40c5e11aa911f698d817efcc8a58040e8c6c972e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:35:06Z), 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/QZES62132786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2df6b6725bdd7344f45e210ed5b829a88e79f4a7a88cca1b51d1646bd9c4bd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62132787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73094f7e53bedf0c494ce4a83ccbb47f6f75cfd645fbdad3a8038ccb999a6f13. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62132790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd044a746fd10d323fdd2c272935846aea4e48fd8e0d800e34670c51c6fcf4f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:52:48Z), 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/QZES62132791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0edf92289701ae268999c47bbf52ea186a3fa6af01c3ec1763122e70431622. 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/QZES62132793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c67cd6662b90419e423716f5fbaf566573e59fa06df25f70ce473b259aba69. 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/QZES62132794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08661347ebc24b62c5345c9ce3aa1812ac113a9b0fcfb2e2d7f5712dc95ea0b7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZES62132795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f73de39da9dd4977eb0660ddd4c5886345bf542275947590c2508b9effca61b. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZES62132796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7795c97a9563770ae3ec6e77311aa573823caaefef9baa96d519b1d51e57ce1b. 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/QZES72138488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ceaa17180754514a2cbef2c607642b8c4e0f87d905609de1f93650d8661f8f. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:16:09Z), 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/QZES72138489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba0d0d181a95e0cde001417d05b24396aa67e02854cf84d09ef0c445cd488eb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:43:19Z), 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/QZES72138490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a5f72de6ecd3bd017852c93f0a18fbe61fe84a97af41867584308183719d03. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72138493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793f5bc420c15c8ae97b2573b3eb366cbc7718b9b2155005939c8ad3af51a73a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:59:34Z), 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/QZES72138495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8ba0f1c04126cf190b35f35a8e6a50bd81f47c2c8518e3e80e826187fc2194. 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/QZES72138497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2d6c313a52873785f8cd49bd22eadd35877d768c983eb623116af687315f61. 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/QZES72138498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a0e97bfe09f0a7b8e3504d069d34e394990ec7f90a9aea1b0a8d1226c03fcc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72140638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f69c68638f75410c6bc4eacb5b3c993c5a63dafacaf8278cd1820807f51316d. 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/QZES72140640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a5ca6a805f4b26d71e125ebe0b0c4ef9584d9ce88fc01a0818dd8eef6f142e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:40:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72140642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1061434110b88556ef9df58cb58fd03be636bf6941035182934f2e5eb68abc38. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:14:28Z), 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/QZES72140644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fdfa58449371d84838485ccdac79efe86df6d446e15e2de4451f8a697b2f71. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZES72140645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c28d1164f6cbf16e0be2bdddf04858f3c2f0d7ccbfee66047cc286d22c6f49. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72140646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dc98584c8eb9974e5f043b91f2c32cc5fb294fd8f75972c0806a128bd01f29. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:37:04Z), 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/QZES72140647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6594ff1fcaf717f3e5695d492ac88aee57737be942b1ad556553f152190a588. 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/QZES72140649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cad0f0e48fa27030130fb90cef73fd3ac174b4023005903853b90cfe4c4a69. 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/QZES72140651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd7723bbdf7052831a02e0440671e6f4cf3dde8f38abf1ac26503e4bc9184e6. 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/QZES72140652.