Graham Colin Swift FRSL (born 4 May 1949) is a British writer. Born in London, UK, he was educated at Dulwich College, Queens' College, Cambridge, and later the University of York. Career Some of S
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 0x8dcf5274b30d3692386ab83c5e0ad345391a9d1a54b2dfad6fce34c6e6fdc58d. Chain 2 (Bitcoin): anchored in block 954039 (2026-06-17T03:00:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e63a0e1-34f0-4947-8f10-4ae966992700.json and https://artists.proofprofile.net/proofs/artist/3e63a0e1-34f0-4947-8f10-4ae966992700.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).