Katherine Frances Brand (born 13 January 1979), known as Katy Brand, is an English actress, comedian and writer, known for her ITV2 series Katy Brand's Big Ass Show and Comedy Lab Slap on Channel 4.
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 0x42b38a6f709576fe9b100591101a47c70b2213c6490ab8560118465eb4329965. 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/d5e66ea2-cbef-42aa-83ce-ded93a582551.json and https://artists.proofprofile.net/proofs/artist/d5e66ea2-cbef-42aa-83ce-ded93a582551.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).