Open Source / open hardware voting machine
https://www.voting.works/voting-system
Open source software / hardware can be inspected / audited for tampering. This reduces the risk that the machines have been backdoored.
Immutable Democracy
Recording hashes of the ballots on blockchains can provide an irrevocable record of the vote count at that time. That prevents the government from later altering / faking the ballots / vote counts.
Blockchain based E-voting also allows for faster vote tallies (with paper ballots as a backup) and therefore, near instantaneous vote reporting. This prevents the government from prematurely trumpeting themselves as the winner, and snowing people into believing they won / discouraging later voters.
Check out Charles Toriello's (@carlostoriello) work on using Bitcoin timestamps to help secure the Guatemala elections:
Guy Swann interview:
▶ Watch on YouTube
Documentary "Immutable Democracy": Watch a 15-minute film on how Bitcoin was used to secure Guatemala's elections - Fiscal Digital. (Link: https://fiscaldigital.net/english)
Simple Proof (Link: https://simpleproof.com
Digital Witness (Link: https://film.simpleproof.com/
ThreeBallot voting system
"ThreeBallot is a voting protocol invented by Ron Rivest and Warren D. Smith in 2006. ThreeBallot is an end-to-end (E2E) auditable voting system that can in principle be implemented on paper. The goal in its design was to provide some of the benefits of a cryptographic voting system without using cryptographic keys.
It may be difficult for a vote to be both verifiable and anonymous. ThreeBallot attempts to solve this problem by giving each voter three ballots: one verifiable, and two anonymous. The voter chooses which ballot is verifiable and keeps this secret; since the vote-counter does not know, there is a 1/3 chance of being discovered destroying or altering any single ballot. The voter is forced to make two of their three ballots cancel each other out, so that they can only vote once."
https://en.wikipedia.org/wiki/ThreeBallot
StampID
"Stamp is a distributed, cryptographic identity system used to represent a personal or group identity in electronic systems. The Stamp project is both a protocol and a reference implementation, as well as a set of utilities for syncing your identity across your devices, publishing to an open p2p network for easy lookup, and syncing messages between identities in other p2p systems.
Stamp's goals are to be reasonably secure by default, have an intuitive interface, and to be a platform for other systems that use the concept of identity."
BrightID
"BrightID is a privacy-first social identity network that allows you to prove to applications that you are accessing them fairly with only one account."
BitPeople: A Proof-of-Unique-Human System
"BitPeople is based on pseudonym events, global and simultaneous verification events that occur at the exact same time for every person on Earth. In these events, people are randomly paired together, 1-on-1, to verify that the other is a person, in a pseudo-anonymous context, over video chat. The event lasts 15 minutes, and the proof-of-unique-human is that you are with the same person for the whole event. The proofs, valid for a month, can be disposed of once no longer valid, and are untraceable from month to month."
https://drive.google.com/file/d/1Q0WjWx4FO5DI67i247_BbOEanMmdCWs5/view