Katherine Louise Mosse (born 1961) is a British novelist, non-fiction and short story writer and broadcaster. She is best known for her 2005 novel Labyrinth, which has been translated into more than
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 0x2c7bcf259c1c1e05ddd65709cdab895fdc451b0b93b2938a34f8dea57fd83a75. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/857e1017-9cf7-40df-9a5e-8a71ba1e462b.json and https://artists.proofprofile.net/proofs/artist/857e1017-9cf7-40df-9a5e-8a71ba1e462b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Burning Chambers - The Burning Chambers, Book 1 (Unabridged)
The Ghost Ship - The Joubert Family Chronicles (Unabridged)