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 0x16752f90102a72e06d29dfb51238d1acc73a111da4b237271b6cff7bbaee02a6. Chain 2 (Bitcoin): anchored in block 954002 (2026-06-16T20:47:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32081613-f3cd-4d15-9ae5-1bcd13aa95e6.json and https://artists.proofprofile.net/proofs/artist/32081613-f3cd-4d15-9ae5-1bcd13aa95e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).