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 0x6395ab68ebee38d8ae720b69cfc771994e4324c338fbc7e06581dc9c865c7bb4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7cef058-e624-4401-a963-55b2a62cb061.json and https://artists.proofprofile.net/proofs/artist/c7cef058-e624-4401-a963-55b2a62cb061.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 0x3afa5bf2966e55a03f18ab3cc423e60c09e522b91a2d850b6ada20a39a683722. 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/QZFZ32228356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19178266325590825077a7c44f2ebc4eddaa1ed9494813280753709e9db97d6. 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/QZFZ32228357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9132af19b04238940b3e0f143c50b1a21c06f46a362662b0b0b72069551cda3. 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/QZFZ32228358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd56135fc20cb611b17244e228a35e5e26574d74d9787183ed04a1aec3bb17c8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZFZ32228359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742cd63f6652a848790c45eca5a1deccd5853f19a97b5e32feec68c511fb7da8. 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/QZFZ32228360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961163c062452192aec7e5a4ec5e062022a828afbcdc134411c6d06e9509fa30. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFZ32228361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9415e04be7a6e4936421ff5b81732b8cc72016b000f7df60e2fa93c78a2a2841. 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/QZFZ32228362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96b11ea93ae4c88c4cc548fb05a609ed41ed4bd071861a50e676a4eb4aa1fb5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFZ32228363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab13cdb6934525cdbe153bfa4664b293792d379dcdafe9dabe6ae0126ebd0cac. 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/ITNVF2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ef0bb923dc687713208041fde3b684370f6105121b6bd82e68ab18fd25d9b8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITZRF2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8dc55d630097507a162a42e0ada685ad79a82fe6500f280106b3498bd894e4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB552316969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2334dd152a090d7727771a25d38f628868a4002c9fa9930be0be4cff9b03692f. 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/ITB552316970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052a094103ea0e88091398f5af57ad0546660edb98884dc09ca76fb17ff6ce58. 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/ITB552316971.
Dune (feat. Franco126, Gianni Bismark & Nino Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd65f0e6462d443080ade81c5f919ccf168b20a52d038217e74d50a1c0ece9ea. 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/ITB552316972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe160bfd188dbe424111423b134ea07d82c22ef64ba36253128107931d8f6892e. 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/ITB552316973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1d3d1ea76e734da749322d494e2d8846f9cec30a898b665650ed385fbaafa9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITB552316941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5689b7000d011bd9142969bb460bfe1168948eaf2cfc97d89cb51c1177a18e6d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITB552316909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503001d4bcf2149c859858992c74a99cbb6b6071353a5a034df4784ead46c2f2. 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/US39N2201784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa85dc085976081f8d3cf033899fc5c6ec3881dfceb60e0c20ed50d8a1762d75. 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/ZZOPM2235026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26a467a9677b8db8e857b56951e69041ddc510f1472140e3e6483fd220a0325. 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/QZMEQ2174794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5713a2b7c52b3eb656240539596161338c60e34c271441bc37462965ecafaa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHNA2120976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6ff41c2991beec766cf73520c6cac907c43354233f72725ede76355e6e0c77. 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/QZHN72150087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0280f21b68dbcc2ab46d55c0bc9f808376bdb0f6a9dae1dbbf7239b80ade3701. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES72113424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e98ee22742055d82855033975a467d8fa8c7321f0c99b7b3a2c2b450170fa85. 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/QZK6N2012751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e0fb24fe4a7f0f4761a66ca0aa3ea50a6f160e1b8261cfe874f9c80c144bce. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITDF62077021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d4918ce42369c05fb27a5629cbad6d55428a0fc85b8e699c765921995fcdb6. 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/QZK6P1993771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a08b69ba00b1f59d1d084a0bb56a9d2fb12b130bf03ec2e8dd14c8a15475b85. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM91972335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1387c8fb5b8b85472d87b67142a20a53cf147a9fc5452df9ca49094b4029b260. 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/QZFZ61907887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03b8082721aec41f04d85d8080cb23d2431e9f4237e20b86e8e9f7dc6dcf7e3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITDF62077153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03b8082721aec41f04d85d8080cb23d2431e9f4237e20b86e8e9f7dc6dcf7e3. 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/ITDF62077153.