Sarah West (born 1972) is a retired Royal Navy officer, the first woman to be appointed to command a major warship in the Royal Navy. West was born in Lincolnshire and studied mathematics at the Univ
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 0xfe684432f6ea9302f8225131dc667893f2c134b3f8daad6de615d35ea85d1c1f. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61cd670e-90cf-40a9-99b0-5dc7fb83ef71.json and https://artists.proofprofile.net/proofs/artist/61cd670e-90cf-40a9-99b0-5dc7fb83ef71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).