Table 1.

Literature review classification table.

Category	Main Content	References
A theoretical study on the framework or model of agricultural products and food management based on the blockchain and smart contracts	Exploring the advantages of blockchain applications in agricultural products and food management frameworks or models	[19,20,25,29]
Research on information management of agricultural products and food based on the blockchain and smart contracts	Focus on changing the traditional centralized management model through the decentralized nature of the blockchain, which is used to strengthen the information control ability of agricultural products and food	[1,24,32,35,38]
Research on traceability of agricultural products and food information based on the blockchain and smart contracts	Improve information traceability of agricultural and food products by using the characteristics of the blockchain such as nontamperability and transparency	[21,22,33]
Blockchain-based applications for the integration of agricultural products and food with the Internet of Things, etc.	The integration of technologies such as the Internet of Things and the blockchain is used to improve the information traceability and management of agricultural products and food.	[17,28,30,34]