DEOR is a fully decentralized oracle network with randomizers, reputation and security monitoring systems. DEOR is a next-generation oracle system that overcomes the oracle problem by aggregating multiple oracle sources. DEOR provides blockchain with higher quality data by bringing information from multiple perspectives, eliminating bias and manipulation that may occur. DEOR works in a decentralized manner and employs a dynamic reputation and scoring system that allows users to increase/decrease the reputation and weight of individual predictions based on their behavior during data collection.