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 0xe383778a3634f3f5e9ae597f3610460df10952655a6cb0f152af48d024060ed0. 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/35e94f14-b410-40e8-ba51-b404932a43f6.json and https://artists.proofprofile.net/proofs/artist/35e94f14-b410-40e8-ba51-b404932a43f6.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 0x57aa5831670938a9d86583ed9428c50e0b684b382e9f253ef87abe4523b7a249. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZC62299651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79bffb4f9fedcbe4d231dfb9a03389048d3cf81ceb784d46f6ff8f6da31fc7b. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/DEZC62457476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933b456b94b3ff4c71492c5f75e23636fc3ffaaac4856e90a237fa4ba3ed8b28. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEZC62457477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df822b319b305f77dade661929a9f9ed19f794a48d71370ad2d33e58bc233a3. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/DEZC62457478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28aff1381a33341abf5ea1cb560e75f508bc41cdf9524c0c8ffa91d3607a09c. 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/DEZC62457479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b3808b8719cdd64511ef7a19025ebcc469f10211edc761b0fb5015d383a56c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZC62457484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7e133b8cb20b866282de985696e946ab2d79f572ca5191f231072c76ef2cca. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEZC62457486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d1664ee0b1b22e255baa0f8ab2487a6c26b0e5f74fba57dda187363158c614. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZC62534224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948cb2eda7f292dff4bc8fba3115d70b0716719343f36f4bed135e3b64edc6f3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZC62534226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5de6d770c29f9eb2f3565c2f71b457502631e5773f172902f70d9770d3af6f. 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/DEZC62496232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a74bde4f3feedf81d1988c9246ff1ce54b752c7ad31e5ff3f4f85e5af2f7f1. 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/DEZC62496233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae046c5833220b54135305f807f631791da56d0a39c35e592bf0b4cb0c63eaad. 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/DEZC62496234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cc9eba2e166dba84efceee84cd8113bd5d7389474c33e7d1c545eaad940498. 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/DEZC62496235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3231069991656b2680630e820b260dbae67e7a33179000cadcb811252552107e. 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/DEZC62496236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e881941b0c2beb67e8ba51085c7171a5f7ed1a75d1f78a00874ac91b0d2e12. 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/DEZC62496237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa932e66650588ccccf6ecca0ae0da4b1614b438a650e0c7a760351192c0ca40b. 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/DEZC62585382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532a85387ccc7140e2751ab77ad8ea0c1c68ff6dd29df1097540d61fc1f5a031. 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/DEZC62261143.