Definition of Blockchain
A blockchain is an audit trail for a database which is managed by a network of computers where no single computer is responsible for storing or maintaining the database, and any computer may enter or leave this network at any time without jeopardizing the integrity or availability of the database. Any computer can rebuild the database from scratch by downloading the blockchain and processing the audit trail.
It'll make it impossible for voter fraud 3rd party or not. Nathan Hourt CTO over at follow my vote has a good thing going. We should put block chain on all voting machines too.
Blockchain Technology in Online Voting
https://followmyvote.com/online-voting-technology/blockchain-technology/