01 Check your numbers
Select the denomination and a draw (or "All saved draws" to check across everything you've loaded), then check a single number, a bulk list, a range, or scan bonds with your camera.
Point the camera so the printed bond serial number sits inside the gold guide box, hold steady, then tap Capture. OCR runs on-device and can misread — always confirm the number before adding it.
02 Draw data
This is the winning-number data the checker searches. Bulk-import your draw CSV files (columns: bond_type, bond_number, draw_date, draw_number, prize_amount), or paste a single draw's numbers manually.
Manually add or edit a single draw
Format: an object with
first, second, and third arrays of 6-digit numbers as strings.