What good is the paper trail? Does it prove to the voter that the electronic machine recorded the vote as intended? If so, how? A sister comment just asked wha

What good is the paper trail? Does it prove to the voter that the electronic machine recorded the vote as intended? If so, how? A sister comment just asked what we would do about selling votes. Well, if you can use the piece of paper to prove how you voted, I guess you “can sell your votes”