Punchscan

From Scantegrity Wiki

Punchscan is the predecessor of Scantegrity. It is the first vote capture system to offer fully end-to-end (E2E) verifiability of election results. Punchscan moves beyond ordinary paper audit trails offering a far more robust and available way for voters to become involved in the election oversight process.

More information can be found on its Wikipedia page and its website.