Augur is a decentralized prediction market platform built on the Ethereum blockchain. It allows users to create and participate in markets that forecast the outcomes of various events, such as sports games or political elections. Participants can buy and sell shares in these markets, with the prices reflecting the perceived probability of different outcomes. The platform operates using a unique system of reporting and resolving outcomes, where users can earn rewards for accurately predicting events. By leveraging blockchain technology, Augur aims to provide a transparent and secure environment for making predictions and gathering information from a diverse range of participants.