Design and Implementation of Source Tracing System of Tobacco Leaves Based on Blockchain

With the development of science and technology, modern agriculture has made great progress, but frequent agricultural safety events seriously affect people's trust in agricultural production and even affect economic and social development. Therefore, it is very important to trace the origin of agricultural products. Blockchain, as a new technology in recent years, has been widely used in various source tracing fields due to its characteristics of decentralization, traceability, and non-tampering. This paper designs a tobacco source tracing system based on alliance chain. The system saves the source tracing information in the alliance chain to ensure the reliability and traceability of the tobacco source information. The system mainly includes three functions: the product information manager enters the source tracing information of the product through the management end, stores the source tracing information of the product with the alliance chain, and the user can view the source tracing information through the tracing app.