Analysis of Agricultural Product Information Traceability and Customer Preference Based on Blockchain

For traditional agricultural product traceability system, there are some problems, such as information asymmetry and serious centralized storage. To solve the a set of an analysis system based on blockchain is designed. The overall framework built, model process designed in detail from data layer, consensus contract layer. Collaborative verification function modules added layer to ensure authenticity blockchain. integral penalty mechanism introduced improve practical Byzantine fault tolerance algorithm (PBFT), which ensures security block network validity data. Smart contracts adopted that changes actually recorded results show blockchain-based solves problem difficult sharing information, realizes production processing transportation transaction query has certain theoretical value for products other products.