Excellent article, I had a bias to in person voting and had not heard of in person voting with "Floating Receipts" before. I thought this was a receipt indicating only that the voter had voted, I did not realize this apparently involves taking home a ballot from another (unknown) voter!?

The only reference I could quickly find to this "Floating Receipt" concept was: https://static.usenix.org/event/evt07/tech/full_papers/rives...