system
A chat on subreddit /r/me_irl
human
Great catch, unless she was actually over at his place and gave her number while writing on top of the pad

EDIT: no wait that makes no sense to write on a napkin over a piece of paper so probably staged
gpt
Well, the bottom of the 2 is curved on one, and sharp edged on the other, the 5 on one is with the top stripe from right to left the other from left to right if you look closely you see where the thicker part of the line is etc. He coulsve just rewritten the number on another page o.i.d