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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad5a68c1d23482416494b3df8bcf2868701afbb65d50ddfb04a4afb543a3b2f. 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/9853980d-73f0-4552-8be7-49ea14430dff.json and https://artists.proofprofile.net/proofs/artist/9853980d-73f0-4552-8be7-49ea14430dff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hate Me, I Will Follow You Into the Dark