thumb|right|Gill in 2017 Jennifer Mary Gill (born 1951) is a semi-retired executive from New Zealand who works in philanthropy. She was New Zealand's first full-time paid employee working in philanth
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x3c35ae7fc1e0a5278c99930748ecdaf8cec995b277225b770efc4ee3b5ceb725. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5ab4833-84b0-493d-90ee-86ce30d4da15.json and https://artists.proofprofile.net/proofs/artist/d5ab4833-84b0-493d-90ee-86ce30d4da15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).