[HaZeust]

You can also do this today by telling someone to take a picture of their vote by smartphone or you'll shoot them. Millions post a picture of their ballot on high-energy political forums every 2 years already. This hypothetical is unhelpful.

[luxcem]

Where I live, ballot are a piece of paper slipped into an envelope (not sealed). It's mandatory to take at least two different ballots before entering a voting booth. You can take a picture with one ballot inside the envelope and switch before leaving the booth.

[HaZeust]

That's pretty cool.

[bluGill]

Where I live phone use is not allowed in the room where the voting is

[HaZeust]

And "sharing proof of your internet vote" would not be allowed either. Doesn't matter, they have the same problem.