Isn't a vote being verifiably tied to a person actually a bad thing? Then you can actually check what e.g. your wife or kids voted for and punish them if they vote wrong. Or get people to pay for votes, but doing that at scale is obviously hard.
Maybe this isn't what you meant by verifiable, but there are systems with this property and they are bad.
Maybe this isn't what you meant by verifiable, but there are systems with this property and they are bad.