DescriptionSEER is a next-generation blockchain-based decentralized prediction market built on the Graphene toolkit. It allows users to express their judgments about future events by means of the market mechanism and makes effective predictions by gathering intelligence and ideas. Equipped with multiple-hosts decentralized Oracles, SEER offers users credible decentralized prediction market service. Also, SEER Committee and a mechanism of arbitration have been set up to maintain high efficiency, impartiality and self-government. In the early stage, SEER’s project team mainly focuses on building a bottom blockchain layer and compiling smart contract s on a basic prediction market feature. Apart from this, SEER pursues extensive collaboration with data providers, aiming to connect blockchain and the real world, and narrow the gap between the upstream industries and users. In the middle of the SEER project and its development route, customized development projects will be launched, such as sports betting, finance market prediction, assets price prediction and event prediction.