A friend of mine had such an idea and implemented it on his undergraduate thesis. He used the technology for voting system in Indonesia called Pemilu. But, Pemilu is a manual voting system. He wants to bring blockchain technology to electronic voting system or E-Vote. From his research, the results:

1. This technology can prevent vote data tamper attempt inside the voting system.

2. There is elimination for invalid data through many validation process.

3. We can request copy of similar data from another node as a backup if there is any tampered or broken data.

I would like to share the paper. But, it's not available in English.