The adChain Registry uses a Partial Lock Commit Reveal token-weighted voting scheme.
That's a mouthful, so let's unpack it a bit.
Token-weighted voting just means that voters use adToken to vote with and 1 adToken = 1 vote. So the more adToken that you commit to a vote, the more "weight" your vote has relative to other voters.
Partial Lock just means that you can use the same tokens to vote with across multiple polls at the same time. The only catch is that you can only withdrawal your tokens back to your wallet once all polls are officially closed.
Commit/Reveal is a two-part stage process whereby voters initially "commit" the number of votes they want to either support or oppose a domain's application and then "reveal" the side they voted on in a separate stage. This is done to prevent voters from bandwagoning on the side leading the vote tally to try and maximize their chance of winning and thus receiving an award.