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 0xcfc37c0520f3097190b437d09f07100601cf7b91ff49c5e5875d9e774a41e845. 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/3aff8877-ecd9-4fba-9a9e-c97d7d00b39f.json and https://artists.proofprofile.net/proofs/artist/3aff8877-ecd9-4fba-9a9e-c97d7d00b39f.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 0xcd5972cf17bafc74440d20513ea8b4b33a4082b1ea853a5ef74e753917b242a6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFMF2315079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530163fd316ba55b71d11e0437e6e135bb3c7b05b4976d1eaf967761fd9ee714. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JMA220700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411ac7a65ac79b47104c68013fc0dd5a28702e200a087a9d4ace8d9e34dc07e1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBCFB0902512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1b51f53b7a93e931ed943617d30d0ab641c8348ae69638226389603062f794. 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/GBCFB0902508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cf5789fc1715b91e501a9375667b87be78f52c40875b8a66bccc22f8382822. 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/GBCFB0902513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc9d3e3a4a90f28f2f112f4b5ffc1e838dff2d00854b834d61062f889a6139a. 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/GBCFB0902502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e631d9bf65256616f7394a32b2f97d9ab603bafffc335cf122be6599c6a932c. 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/GBCFB0902503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2997570df553b4726fe619999035718e2f7f463430fb97d6299d8361c995f1a9. 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/GBCFB0902514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f765c4e7f92ad41fd24fb031b7f998966a83f0f6a93e6d46f227b575687ea20. 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/GBCFB0902515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e27ad0d0cbbeb77f38ea07e0fd1e81d7917a676b3a790fce6ee998dc0bb2b48. 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/GBCFB0902516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a69a2b6136b4fc790c65e7204f8d28820505a759188233e8674682d03746ce. 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/GBCFB0902520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5971d64fd4bfb8ed056a21672d186150f61a1df5f98d9d3881a4aa1e367139. 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/GBCFB0902522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b8509b1678e2ef2bf4b09b3d6b1b4bb4951a4a257328f96f99ea94e1664be8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBCFB0902527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2243014cc81779385f35fd2b046dcc5e22d72428280c3f5d0e243eced061292c. 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/GBCFB0902528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8d8276cd5d4c7eb5e1a30628096c765b5df2ba8aa6096c4eec388391b6daea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBCFB0902530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61feb661af962a99ad51710af9f5b5ccc050e709ec8f82ceda511db9be8a6d1a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJV2146992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb3b0e57f882ef84a67fd69eea5b00ffc1c0dccf9f00db2cf6149d0792dcd90. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JMA220700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa930519c7a1a45683bae82ec2642d1287ce6b7e2649c98d265cb6df38ed19751. 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/USPKN0800275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf65a7ff91829867f3c6f408998729661f58186c556d355e4b08261557904c61. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JMA240700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1c6765262dc8c4e205742b2b0a357aa3645c981b12c39a7b33cbddbf6c0109. 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/JMA220700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d23608b5122868bad411b9927e18dc62ee34c87f41c86b41129fb2dca393c54. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPKN0800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95224f6b27e0d4857d56bd3b17668541636e529fbc05276a50bd03767535ec72. 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/GBBZV0752506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8820cffc045709c7ce1b8dcdc275573075b937618a7756b5c8c9e26857a85e9b. 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/GBBZV0752507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573346ba1e0a48abaa105f32c6fcce4b0e2b246a89fb4aae5c372f0f8a35e752. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBBZV0752509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810a7dfb6076e8ff11b21652e8500129dffa85a575630da6b69a0d9f2620e6d7. 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/GBBZV0752492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27141bd390503f9ddcc0a8d25a11f3581a3bd58593d41af97036466b9028452. 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/GBBZV0752493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa561b0ed8fb127b36965f8bdbdd86c1d8ee8261e882b0bb9002c92cd225fcb35. 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/GBBZV0752494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f6124e3a678056d2b3d769c2a9f0400dbcd7409c2d93a365b44a8607862ed2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:56:45Z), 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/GBBZV0752495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cc5384a67ad35d7ddb7fbca06d9ef83dbb4298f07d7e2d40d86391d86ee6ae. 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/GBBZV0752496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab799ce4f5b26d5a6582e41b42ac6c27b4688328078b6e32ae50a85de063bce. 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/GBBZV0752497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796c0e81404412472ab6806262e29cf34a421c5e60d5f3a5d426adfa77004a1f. 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/GBBZV0752500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518c318311bf0b2c1732552e2946e127245bbd2e768c2075193fe63048ad076d. 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/GBBZV0752501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a200ff12d50e692488df758b235cbb61907f55b53c361e6c12ca83c6e39d1f. 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/GBBZV0752502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6881c5a3b96f83060326f7dcca6ba793c344e6d360f80abb5fe4e8dfbede437e. 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/GBBZV0652264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b5fcf4c672b204214b758d445ee9ea0322271bf85e0b0889f10e411e3deba9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USQY51248575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cab6f06451ec3e226663919fa84f59f7bdcf978132ee568533f8e088fddd009. 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/USQY51767521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508c91c4d02c71755425e5915ebe9ce6931213aa76989c12d3eec1c87c9aa9f1. 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/GBGSY1000001.
Acknowledge Me or Don't vol II: Love Me for Me