That is pretty much what I thought of when I thought about this question. On a technological level I think that is pretty sound. I think however that introduc

That is pretty much what I thought of when I thought about this question. On a technological level I think that is pretty sound. I think however that introduces a bunch of potential social issues in the aftermath: - If people would get a piece of paper after the vote that shows their random ID and their vote they would have to immediately notify a person working at the voting booth to correct it - If for whatever reason they find out that the official record afterwards shows they vote for someone else, is there gonna be a process to correct it? - If there is, that could open the door for people forging random voting slips in order to swing votes retroactively - If there is a somewhat airtight system that prevents forging it could create a real market for buying votes. If someone wanted to buy a vote nowadays it is pretty hard to verify that the people actually voted for their candidate. Now all the bought voters would need to do is send in or send a picture of their random ID. You can probably address all of these problems but I'm not sure it will be more economical than paper ballots in the end.