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 0x5291010e3438c9954f5d29df63b39b8a7d56a94fa37bf8548fac51e1e573e13e. 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/79c16a3f-9f54-44f4-a1c9-e74b86653d16.json and https://artists.proofprofile.net/proofs/artist/79c16a3f-9f54-44f4-a1c9-e74b86653d16.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 0x26ce020e0a9472afac4f11228e4b8e95b4e56f8dad2f4bea19239111ceeda918. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:04:55Z), 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/QZTB22489539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee8af0fcd114fa8c5a05ad0e17c94d0fa5cfb930389858563e5958d4407e5d9. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:12:26Z), 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/QZFZ42517357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee04408d0fe1dddd886a529877b7f63bc1e57448688988bc26504f6d80d30d3c. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZHNB2593431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf786e8d63ac7672cbd23fb29676e2dd9df75aa04793ee57448532c5ece2eb99. 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/QZNWV2584725.
When Heaven Falls Down - Extended Version