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 0xf4d543c8ea9c1ba29aa31af1556a9451a750d9da48d0733195018b0866a3996d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14248110-a938-4da7-a851-efd2eb1bf9be.json and https://artists.proofprofile.net/proofs/artist/14248110-a938-4da7-a851-efd2eb1bf9be.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 0x98d8ec82450b95b838ee972d5f4f5d8239a8c33ee85fe287c0893604c893f9df. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE5IB2001939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd111997bf2ffece9940cd5cfcd304436cc477141aed73dcd4aae887bf83f9bf4. 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/SE5IB2299575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffa90dd134b70390324011e367680f28b9f1e92e38dd0b59e3b037840c40fb8. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:23:03Z), 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/SE5IB2306653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d32f23654b15f3f96cd708943e5b21305581ffb1d1d2eed0d89151f373ae09. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/SE69Z2439426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9d0a94db850b7a00de9c7fedc44faa8cc91f30ffd0f1a74f8e7db5997abda6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/AUKDT2402034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae29907d762513ef180e02e9850cfb080bbfe2bff76c56f905dc07eb19656ed. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUKDT2402035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce8664f6cc6c7344a87c0b4bd939aea29a1fbeeb6913d8c7bdde9de0a43edc6. 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/AUKDT2402037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bb92e0a325dfeee5e4c30bb4c0b6d4202234a3c7d2e3e18dfe5c06a21c700c. 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/AUKDT2402038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324dbe8fba5500a8ff0dc44782eae9ec0cddef4dee0153727fbf427b09d252e1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AUKDT2402039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0905647b585bb6d44fb739c1ad26724b8f3a516b06d2157f3dda566280bf056e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUKDT2402040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d267f68dcf5c1462effa7fe4709675ec98119d5a3d424e344506d9d5b77ff3. 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/AUKDT2402041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffcb3f4baf9e24af7a50f1983bd3996dd0b16e83e61d77dd4d0cee3ee9e2e22. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AUKDT2402042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90799ad15d2df6499840594875968b7f10c0f445f4a60f16bb3f619cf3260128. 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/AUKDT2402045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d3469cb2b637917e4791aa1d2beb1797970e661b6e60e6ea98eb65f01f2e2d. 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/AUKDT2402053.