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 0x2a457c1573565dc1453210e39078aea371bd43f04cc6db96d638d891309f51a8. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5150443a-2448-4d4e-9b59-edb4d52733f9.json and https://artists.proofprofile.net/proofs/artist/5150443a-2448-4d4e-9b59-edb4d52733f9.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 0xcd00e2dead965576449d38538804b02454386a8845837dd2a0ac94abb594c7ef. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/FRX282511320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ee1d9042994cc3cc36274cb5337ae98476f8ae12a07e22ba98e92eaf372028. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/FRX282511321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87eee5fbcca07186d5afe97dc1325da59fa89629a51e747fa05247830f3fc62b. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/FRX282511322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478591e2efc13d66e4553fe0750430d3d957a63ac6bcde91827672f4e78ffe77. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/FRX282511323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42058035192389b491e79bb6d1ac5f03e36986334ca32be90fa33ed9421b90a. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/FRX282511324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b804f2ff3bb05c016025a64c0b9073d6aa78c8454893b68ced5cab4cedc42d. 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/FRX282511325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36dd781ed683b72f9959d185b9ea3973037165f3a66354de4044060092e72d04. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/FRX282511326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48db96cca6a2d5c30f02380cfb17bcf52e1c1928a9ca1569b7ad39e6866bdd17. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/FRX282511327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8741f8ea32880aa682ae25f304c12c5dec61e3a71decebb8c0f88eca8a392d61. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:58:34Z), 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/FRX282511328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c4c737e6269890ed571fc3fc28c03d26fad09ab4126b50f11255ad99ac098f. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FRX282511329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d1d050b383d31e0085363ba8b41320c5c97d6d10b87eb7f3426da776208d9f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX282511330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113851aa3fca7d463a751e34e494d57c0ab01a9f895b9396b203bd685c02d753. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/FRX282511331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c0e30dd228938540ef7b0ec9e95ab8a253e672c255b56134fa1f72eb9aa2bd. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/FRX282511332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e2960f5a692ccdcd29b93a58025d497c37a15206fd3ae464060dd1e3bbbf35. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/FRX282511333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61d2ecb30f570fa5e961d24685860afa7f0128f129d66d0b2457370c628c088. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/FRX282511334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebb909a0bfa88c89239920bc22b7db58490848f499aa129c72aae19c8f7601d. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/FRX282511335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae8b3d9ea6c25301c28c28be178d35db282be15bc5313fcbcf92cb6c73ed175. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/FRX282511336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67865f8b38a282f1f965168da403cfe36fac966c3c9d0732058acb9ff4322234. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/FRX282511337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef46e515764fc1fedb33f0c7561be2ff5c52b12c58508a74105aef222ccdc61. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/FRX282511338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6cd393f558b9eb461d4224cb0a47035f884c392dc055b83a84acb2f66269e5. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/FRX282511339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca25cd69304b8c875171cd96f595b5dd6c7a6d7106b3a680d4a335c8da3e4448. 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/FRX282511340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e9f38980dc54378905b9d00a8ce188fd9e97ecd4825426a2662d6a7246f2f4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FRX282511341.