How many times did you vote?

How many times did you vote?

Once? Twice? Zero? For most of us, there's no way to know.

I pointed this out to my wife as we left our poll yesterday evening. Her response: "Why does that matter? We've never been able to tell in the past."

True. This has been a weakness in US election practice for a long time. What would be a sensible solution?

I'd like to receive a printed copy of my vote with a unique code on it. The vote tallying process could then populate a website where I can look up my code and verify my vote. I should also be able to 1) download the vote data and satisfy myself that it has been counted correctly, 2) not see any personally identifying information connected to any vote.

Several issues would have to be address: How do I know that the data I get from the website reflects real vote data (as opposed to data someone made up)? How do we adequately secure the vote verification website? How do we ensure that the website has enough horsepower to support the traffic it will receive? How do we ensure against redirection or phishing style attacks (in which the attacker persuades the voter to believe data from a bogus website)? How do we protect the vote verification website against denial of service attacks?