Ink Protocol is a decentralized reputation and payment system for peer-to-peer marketplaces using a new general purpose cryptocurrency called XNK. Ink Protocol is a product of Listia Inc. Ink Protocol helps users safely send and receive payments in P2P marketplaces while earning public reputation for every completed transaction. It greatly enhances the buying/selling process with decentralized reputation and feedback ratings, decentralized escrow for secure payments, third party dispute resolution, and very low transaction costs.