HTH
I have all that information from my town, who is registered, who has voted, what party they are affiliated with, exactly which elections they cast a vote in, all the way back to 2012, for local, state, and nationwide elections.
And I just asked town hall for it.
Not sure just how “Unique” it is, and I will bet it is just as inaccurate as every other registration system out there. And they are made deliberately inaccurate.
Worse, they make it impossible for civic-minded personnel to update it. In my town, it can take up to 3-4 years to have a single voter removed from the voter rolls, and bureaucratic tail is long and involved, even for one single voter.
I was told by an expert (on a statewide conference call for Republican election officials and town committees in my very blue state) that it is this way in nearly every single system in every town in every state across this country.
One does not need an overly fertile imagination as to why this is so.