Another timely blockchain reality check
"An important property for an election is finality: you want a well-understood process that makes people confident in the result. The paper-based process used in most states today isn't perfect, but it's pretty good on this score. Each vote is recorded on a paper ballot that's available for anyone to look at. Everyone understands how paper ballots work. People can observe the vote-counting process to verify that no ballots were altered. So not only does the process usually lead to an accurate count of peoples' votes, it also builds public confidence in the integrity of the result.Blockchain-based elections would be a disaster for democracy | Ars Technica
Blockchain voting would be much, much worse. Hardly anyone understands how a blockchain works, and even experts don't have a good way to observe the online voting process for irregularities the way an election observer does in a traditional paper election. A voter might be able to use her private key to verify how her vote was recorded after the fact. But if her vote wasn't counted the way she expected (or wasn't counted at all) she'd have no good way to prove that she tried to vote a different way."