How about a receipt showing your voter number and the tabulated votes with a running total?
It would be much harder to cheat as each voter becomes an audit trail. In the event of suspected fraud only a few voters need come forward to verify the vote.
The blank ballots should ALL be counted and serialized so that you can’t ADD ballots into the mix. Maybe even special paper like money should be used. FEDERAL BALLOTS should be SEPARATE from state and local ballots, possibly even supplied by the federal government. the states can use whatever they want. Here in Florida, we had a FOUR PAGE BALLOT containing federal, state, and local races PLUS constitutional amendments, printed in their entirety on the ballot.
Also, ALL ELECTRONIC VOTING MACHINES should be BANNED in ALL FEDERAL ELECTIONS.......
THAT IS THE BEST IDEA I’VE EVER HEARD SUGGESTED!