Perhaps the receipt could print a hash code on it that corresponds to the digital entry, but is non-trivial to generate from the digital version making forgery difficult?
People usually respond negatively to any suggestion of the use of cryptography in voting for security reasons, but I think actually exposing that system to the public in that way, actually showing them hash codes, would create a huge backlash.
As a general rule, if you expose the American public to literally any number without a dollar sign in front of it, they will immediately assume the following:
1. It is or can be numerologically manipulated to be the Mark of the Beast.
2. It will be used to track them and herald a new age of government surveillance.
3. It marks the inception of Sharia law, otherwise why would they be (partly) in
Arabic numerals? If English numbers were good enough for Jesus they should be good enough for us.
4. It is redeemable for fabulous prizes somewhere on the dark web.
5. It's how the reptilian Freemasons are guiding the chemtrails.
6. It proves strawman theory is correct so they don't need to pay taxes.
7. It is the revenge of math teachers on their lazy students.
So, you know, maybe we should find a way to prevent vote miscounts that doesn't involve Americans interacting with numbers.