A modular monolith for document data extraction: three domain modules (receipts, grocery lists, answer sheets) on one shared OCR core, wrapped in a UI that draws every recognised word box over the page tinted by confidence.
How it knows: Arithmetic reconciliation catches the errors confidence cannot - a clean, confident 8 where the paper said 3 still fails if the line items do not sum to the printed subtotal.
Nicholas Smith - all work