1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x100d36e04a9fcf0673b3bdb0e5da6608e4ae8f2df4e4edb066e8b8b7641949e7. 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/58a23a2d-12b7-4e6d-ba88-c11179db4744.json and https://artists.proofprofile.net/proofs/artist/58a23a2d-12b7-4e6d-ba88-c11179db4744.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 → block OTSBitcoinBlock must exist at that height 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 0x3d9cc17601a7b29979ba809a32b84fa87be8f391e2590062fd48b7d451f94dc6. 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/AUHS01204756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c37716d367b77d6298a6e433f8e076f79190ef96e91c38b89da12660bda863. 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/AUHS01204758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8376f71aa16804c5afa3ebcc8dc383abf33b0a6481d2a484221bd25c678b3aaf. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:34:32Z), 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/AUHS01204751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799fd123ae314b6b3c77f1418138b1486a2f24791b21910e35afc635718ccffa. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AUHS01810085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae593da6c8013680a737dda81d11842aeb6be9f7deb3da7f18e8af52d9d1f54. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/AUHS01709047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea63e07f07d27bcf7f5a1e127d51b1741f4f05e8deed7ab94aa41695b77a486a. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:49:09Z), 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/AUHS02215343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b62f077ccec8e174ade37027cb74ecfb0d1ca9fb8e63f5c863cf487bb305e13. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/AUHS02215342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35a8c4b6fee8e6610758074926b8f3db1a7a7e42febddacbaa765147ea6ae80. 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/AUHS02215344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf670c36abca57116f21266a344aaee09f4a4ddfb1f5959aed3f46d257a63726e. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/AUHS02215347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b92ddcad0c44aa59d64ef10361d5c4d7bc85bac73e125a0a0158d15804f487. 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/AUHS02316258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3740107ca39a3ad5f322cde918e23c1e264d3bb46e3eaacfcc2505cff12bed4. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:34Z), 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/AUHS02316254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16681d3c470c5f61c8cff41c5104bd921b07d6fead462c99bb5c4faff0ffe230. 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/AUHS02316257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dda9a05c0fb70aba95f3f7912b6408d0c4ccfeffe2ff0e01ddc240f38550bb7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:15Z), 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/AUHS02316261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d938536ffa9d27bec8a4ed32f51f650eecf827c7ba8ed6907e3648d73802e8. 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/AUHS02316263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee005e6f0a6b531e6fbf8a51d44581b21f2f33f45c3a18e5b05010f246a47ec. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:48:33Z), 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/AUHS02316264.