Grade a TON address from facts you can document, and write the grade in plain words. Treat the raw address as the key you file under.
What moves the grade
An OFAC hit settles the question and raises the grade at once. A wallet that was dormant and then shows a burst of recent transactions needs a timeline before you score it. An empty wallet and an active one deserve different weight, and the free check separates them through the transaction count and the latest date.
Writing the grade
Lead with the address and the check time. Put the balance next to the grade. Say which inputs came from the free check and which came from your own reading of the public record.