Dunno 'bout big city machines, but the ones in use in my corner of WV keep a paper record on a continuous ream, like a receipt printer without the tear-off function, as everything's entered into the machine. There's even a glass window so you can verify accuracy as you go along, although I confess I've never more than spot-checked.
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"V, did you do something foolish?"
"Yes, and it was glorious."
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"V, did you do something foolish?"
"Yes, and it was glorious."