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 0x194ae5a8213f5075233e9a74726b3f9b15a6beb14b3a06b8d68756cfc5bf3aa2. 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/8e271c55-26b1-45c9-90cb-09c93017689e.json and https://artists.proofprofile.net/proofs/artist/8e271c55-26b1-45c9-90cb-09c93017689e.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 0xace75d8deb2d3a30ec96b4847578e68dd85e321ade9903c37a902cd641db3206. 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/IDA171506049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6395f569dfef283345f2cb94746abe24f1168924650c9c43e1a7a67e5aa172ca. 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/IDA171606004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd39e5e5f98fcff859cbf657f58e8809431e1f2545048d7f30eca6dfe851bbf0. 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/IDA171606005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02dffd8e09feed9c2f234719a5871392723c8a1f226db2bd6d91ec0a6882c42. 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/IDA171506050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c80bfee238db93406a041c07c9e30e8fe423f2acbbcb174746501b6d7047455. 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/IDA171606006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15d669e41733b6545612bebd3814cd50c62b63871d8c8fcfdfd2e167d579c06. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/IDA171606007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1ff11d2edd9b39820af2514abfb992501dcf38888da4e024d307bf47f14aa0. 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/IDA171606008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c99257e5508ebe6c670ed47e431ce5faa0f035913c99f8b139fde280cd6a41c. 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/IDA171606009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb0e74f999f8a418ea2710e57112768b9f4ff0bb7ecc4132d5cbeec19c2cdd8. 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/IDA171606010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b82bff7685005d21e86a9c3afba5ac454abf3fe7035305a5b51c27bf40a58a. 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/IDA171806046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0436a3243a60bbca70abcff83aa7aa546e59142c8f9bb38fcd76e386e9c7ec. 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/IDA171906017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d40c9ffd0999531d0698ef68d5df66515f8e124d75674e9232f48574bc6dc7e. 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/IDA171906041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c4128d495a55177ffa1b6d0c8c49a5bd03af9e85bd1686d11c0fc8a90a2d68. 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/IDA171806047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf051240552f4f788cd172becb16e8cd5d0e14a63238b73340f40e9f4c695a4e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/IDA171706041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1172dc921f39a6bfeeb1066d6784544fd3bcb27967e8ca3fe73d215103b4b2e7. 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/IDA171806045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3776d8d73ecac508b075f6e2bd81c5313f422383958dab1d2e331418a6cb3ec6. 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/IDA171801057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb975e06b89e5dd84a79ff4d0c37e0b4770b3b583174e3c15b9ad1a4447f14a9. 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/IDA171906042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5655da5e0fe2b2e14c1ff0433cea3d496f4c1ddd6327e34e01011e3305698370. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/IDA171806059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27af33fd91a09b9b5cfa514872db14ad06d37ce99b483e69e745b7f447d51c6a. 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/IDA171606048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06958697e2a4c8154113129ddb4d358bd1e73ab00465ab69f559e10be4c1610. 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/IDA172401096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3e18014096d70bb4192389588a705c1ca164e15a751d3ae61ec50af5652a3d. 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/IDA172401081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90c62c152b991056ca764dac36a65084790e279282c446088fa3c49b9244f89. 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/IDA172401097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6240266f2ff247e1598933187366bf8a80b2c769fe03931e321894a24211589. 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/IDA172401098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef88bb3a10c8a3bd76319c7452138ff5b9fe9abf2ea546a642e91324f409d61. 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/IDA172401099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3e18014096d70bb4192389588a705c1ca164e15a751d3ae61ec50af5652a3d. 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/IDA172401081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048cc0b3bd94c3bd8ca74f6be85d35c61a190c4547bd5ea222207c4a31f02431. 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/IDA172301015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17558a9fe366eb5b73831ace9b60749668a426b646268acd05a883e6bdfe008. 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/IDA172201009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b06813c4c4f294a415a378f598c267cdab61827dbf23dfecf588ea1b9dd9220. 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/IDA172006073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa024d3c69cf30bc2b85f279525354bc85d891a5cb7301a1679605e2f5a628cc2. 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/IDA172006074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf777d55ad39d4a33f017479a0e4721ecb2d31aa3c3ec577226a0f46487bd808e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/IDA172006076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3776d8d73ecac508b075f6e2bd81c5313f422383958dab1d2e331418a6cb3ec6. 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/IDA171801057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1172dc921f39a6bfeeb1066d6784544fd3bcb27967e8ca3fe73d215103b4b2e7. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/IDA171806045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf051240552f4f788cd172becb16e8cd5d0e14a63238b73340f40e9f4c695a4e. 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/IDA171706041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27af33fd91a09b9b5cfa514872db14ad06d37ce99b483e69e745b7f447d51c6a. 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/IDA171606048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d2af3497f8515383bb22eca2cbaceece5e02b342cc26ac3878abe22d0e879a. 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/IDA171630001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e7a8dad2e92e7716951bed10ec4e4205e41c1f3bec1faaba84cf270b6d4d3a. 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/IDA171630002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8578d669e139714fb5330912ccfa98820ef148810894a45a5ca7fb480239496. 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/IDA171630003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609f7bcf77894c5fa1c79b93ec859f7a8af597314248203cfd4278a3dda0241c. 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/IDA171630004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64583d6fcb777fe8dec66ea740cc309a3b36438b3295d3b95e39b92db08edbb1. 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/IDA171630005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3f652f3e22e05162234f1079697cb951f2f89f0fc1f1652a6fd7bfdaa40e14. 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/IDA171630006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e57ff1044a250701c754fa721590df7d20f67ed1846d67dd02085602bbba577. 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/IDA171630007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8970ac7a0fa9217827897e70dfd6fa0b0d35ce7827240d38dc906f3753a86700. 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/IDA171630008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92916ffe4ddb4b589b1e45eefd785d5f9866a286c6bd753d159317a7b9ae5a19. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/IDA171630009.