Is There a Wiggle Room in an Election?

The election is designed so that your name and your identifiers are removed from your vote by the time your vote reaches whatever final data base. The reason they anonymize your vote is, if they didn't, you could prove who you voted for, and then you could sell your vote. So here's what i don't know about how our election system is designed. If you make the vote anonymous, does that also make it impossible to audit? Or do you just do it a different way? For example, let's say the local voting machines in a precinct got a certain result. In hi said, trump got x number votes, and byden got X number votes. But then they removed