I think that there is. There's a site that was storing everybody's voter registration and what elections they voted in and putting it online for OH, FL and PA. They seemed to stop updating the data in 2010 though. Their fine print said after 2000 this information was legally mandated to be stored by the states to prevent fraud.
Thanks, yes, that’s what I mean. Whether or not anyone voted is public knowledge and part of the public record.