That's why I said that two copies of the receipt should be generated, both viewable by the voter, with one of them being retained within the machine. The one g

That's why I said that two copies of the receipt should be generated, both viewable by the voter, with one of them being retained within the machine. The one given to the voter allows them to verify that their vote was cast correctly and gives them a piece of paper with I "vote ID" on it to show an election official if they notice a problem. The one that is retained would be collected by election officials and stored. This would allow someone else to go back later using a separate counting device to verify that the automatic count from the voting machines.