- http://fortune.com/2018/07/03/blockchain-voting-trial-zug/
- https://thenextweb.com/hardfork/2018/09/03/japan-city-blockchain-voting/
In practice, the main issue will be the proof of identity, because even when the national id number can be use to identify the voter in the blockchain, there is no guarantee it will be used by the real citizen. If polls happen in a typical way, going to a physical place, then a standard procedure may be used to id a person, representative will check the official valid ID and then the voter can scan it in a device and vote on a screen instead of paper; if the polls are run on devices, such as personal computers or smartphones, some sort of biometrics recognition system must be used.
And then there is the politicians will... I believe all of them cheat, so, to authorize this technology is like shooting in their own foot.
Voting on devices like smartphones or computers will raise a lot of questions and the elections' integrity. Blockchain is very useful but people will still prefer to see themselves vote physically there with the officials ensuring they are real people listed in the designated precinct. In my country, people still don't trust automated elections entirely so I'm sure that blockchain system will sort that out.
You can still physically go there. You can have a voting machine like a btc ATM but for voting. I also agree doing it from any location online might not work. People will prefer to do it in person. Also in person it is under suraliance and offials are around. Also the vote will be done through an official machine not just anyones phone.