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 0x9e01fa617dea1119bb5742c04c5579f902e4d3b170aab4c9d21043677f27536d. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96a525b7-d608-48d3-b432-1d6a6689f160.json and https://artists.proofprofile.net/proofs/artist/96a525b7-d608-48d3-b432-1d6a6689f160.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 0x6fc06f165f1298a70dfcb29ab5508c4383cd41889f4a26d09d29c03565afd245. 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/DECY52300504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6974d784b5ed6ae988b54c271956c845a350412eb972ed939b146b4c5e636df4. 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/DEH742442897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe897a71f393d8c75a64ed9695da9d95bd0e01f0b2edcc05e2cf9c96501e1a778. 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/QZMHL2410752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d01379a40e1a8c2ee7877a9b53cc14a73c6f0e3eeec6d7035e78cf708cc19d2. 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/QZMEM2455656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed93b64df45b4191156eb7e740789d3e704b7c5e21dee575583e69b0146da3dd. 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/DEH742410227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa1452551ce4d1071cd818603eecb5c738dd1e866431a18c9faa77368353167. 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/DEPI82321726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7d57910f35c35535e9aeb0b2078eaa401eeb4ad0930d93d74fba129802793f. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/CA5KR2385259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35647b4356fea81d4ce9f9531552c5aedf80f9e614639ab63e3820e1b241f147. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/CA5KR2385262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c505f59fc1d8523c54d64eed530a55ea95732da4396ee07af32dd7233900dac. 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/BEIX12000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a522f813a7685f43336daaafc5150fcac61732ae9068f5fcba1887033cd44b. 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/BEIX12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1731f55d9db2ce0d13ae98303667e2b111e7498c2db7820a3a084863412b27d5. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBKQU2057424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe155918e9ab07075628a16b9faec7b85772d081def3675345a2f21485daeed0e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBKQU2057427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f76a89714471e6a613f00a2704c961c9c8fcb62f53449f0dfcecc8dafaa7fa5. 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/GBKQU2018648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adad329efa5955d1abcca7b590f24fc768457f0eaa11d6045a54068c779c938. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/UKR6V2030784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51a3d8b8ea6a8c5f0d284d09af0b03e913bdf08ea85053475219e13e5753a6c. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/UKR6V2030786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67cdacc252167940d0324535fc1b1087ecaa0b84382f501fd9e8c2ff67ba8a7. 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/ITB842000253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb7ddb74838331d33b872effcbd599b01bc10050733e33dfaf47c9632aa4e2e. 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/ITB842000256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a683f0cc912a61826308a3d1ed0b4d3894ce60c9493e1b707a047f9f6f826f. 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/ITB842000259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cf1bdc9e39e84bef39329e0c6abfb364e58fa49a713c861819d3aa23bc6a36. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBKQU2027958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c82a59db430af18013ebd83f2069ab1ad586b5737736d2062c927a7309e7a7. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/UKR6V1910417.
Into The Darkness (Dj Jordan PsyTech Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fd0d735712f0f335a994f3e66b68bb8041aab952f12bc6e6113521a087abec. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ITB842000192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f62d37ee535a4568dd672fda925b1e0d886085e5535c8c563cb8ddd8938791. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITB842000194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026ce9e75f88a4897251c572bb6c926d1863c6e8c03eafa741b5e1c93dc3eb9f. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ITB842000198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa59b47ee6d516bc8aafeed3167b0099dfefd076acc5f77546eef1d09d23b9c. 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/ITB842000200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a07311b3f70612185a401dcb0c041b666e8d5456876f3f71fa45f36bae3cd1. 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/GBKQU1743556.
Sunglasses At Night - Gene Karz, Lesia Karz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6411bb49f2b8f356e30c9db9c2a5bda836cdfbea4f7e31bf5d4cebdf5a205f19. 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/GBLV62212817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944579bf6458cf42265bae8aa8f3879a23752be7e51752ba67ce796fc7313ec0. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ITB841900750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4acd27a88172bfb495a2e11755b9692d338e2cbffa858e16c77fc21e7b3b30. 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/ITB841900754.