Kleros is a decentralized application built on top of Ethereum that works as a decentralized third party to arbitrate disputes in every kind of contract, from very simple to highly complex ones. It relies on game theoretic incentives to have jurors rule cases correctly. The result is a dispute resolution system that renders ultimate judgments in a fast, inexpensive, reliable and decentralized way.
PNK provides jurors an incentive to vote honestly. Users trying to game the system will lose money.
Pinakion protects the system from sybil attacks, while also providing jurors an incentive to vote honestly.