[EGreg]

I propose someone sponsors a bill whereby any voting software used to count votes by the public must be open sourced and have several signatures (md5, sha1, etc.) which each voting center must verify before deploying it.

The voting centers would just have generic computers (perhaps with special peripherals for voting) which would load the software from a file and they could verify the signature of the file. There could be software that does this automatically. Such as the Apple app store.

That way, if any data centers detect an anomalous signature, they'd report it and it would raise a stink.

This is similar to the Apple App store except instead of Apple owning the ecosystem it would be their government. There are even better ways without all this crap -- either use an existing App Store from Google or Apple (or all) or have a browser extension and distributed app store from a distributed social app platform ;-)