There's a new conspiracy going around that Trump is 4D chessing again, and he had ballots UV watermarked with blockchain identifiers to prevent fraud.
Color me skeptical, but it's been rampant enough over the last 18 hours to drive Bitcoin's value up a couple thousand dollars.
I don't see it being possible, since ballot publication/design/security is a State level duty, typically the State's Secretary of State. But if true it can be used to pinpoint voter fraud.
I can see a lot of overt benefits to blockchain validated voting.
1. Give any political party authority to run a transaction server farm, but never more than 5% of chain validators. This makes forced collusion via forking the chain or revoking transactions impossible.
2. Each poll place runs a transaction server.
3. Each county recorder runs a transaction server.
4. Each Secretary of State of each State runs a transaction server farm, never more than 1% of all transaction servers.
5. Each news agency that wants to, runs a transaction server.
6. US Secretary of State runs master transaction server farm, never more than 5% of chain validators. All parties wanting to run transaction servers have a clearly defined mechanism to join the blockchain, but can only do so at the votes=0 threshold. Once voting begins being tallied, no servers may join. Broad subscription of transaction servers and blockchain mirrors is encouraged.
This allows real-time data mining of real votes by news agencies, rather than exit polling and projections. And it gives a tangible audit trail to all votes. Even an individual voter can enter his ballot key to ensure the votes he thinks he put on the ballot were read and interpreted and logged correctly, or if they had been misinterpreted or maliciously reassigned.