Typically you want votes to be non-identifiable so you can't show that Person A voted for Candidate 1. This is why your mail in ballots in the US have the doub

Typically you want votes to be non-identifiable so you can't show that Person A voted for Candidate 1. This is why your mail in ballots in the US have the double envelope system. The outer envelope identifies the ballot (but not your vote) and if there's only 1 submission then it's likely legit. At that point the inner ballot can be counted along with other legit ballots and it won't be identifiable back to you.