Abstract
Traditional traceability system has problems of centralized management, opaque information, untrustworthy data, and easy generation of information islands. To solve the above problems, this paper designs a traceability system based on blockchain technology for storage and query of product information in supply chain of agricultural products. Leveraging the characteristics of decentralization, tamper-proof and traceability of blockchain technology, the transparency and credibility of traceability information increased. A dual storage structure of “database + blockchain” on-chain and off-chain traceability information is constructed to reduce load pressure of the chain and realize efficient information query. Blockchain technology combined with cryptography is proposed to realize the safe sharing of private information in the blockchain network. In addition, we design a reputation-based smart contract to incentivize network nodes to upload traceability data. Furthermore, we provide performance analysis and practical application, the results show that our system improves the query efficiency and the security of private information, guarantees the authenticity and reliability of data in supply chain management, and meets actual application requirements.
Highlights
Fruit and vegetable agricultural products have excellent production advantages in China, which is a large agricultural country with superior climate conditions and abundant species resources
The Food Safety Law implemented by China in 2009 [8], which provides that food producers and operators should establish a food safety traceability system to ensure food traceability. ‘‘Traceable’’ has become a challenge for all food and food-related companies and the traceability system has become an effective means of quality management in the agricultural product supply chain [9]–[11]
In order to solve the problem of low query rate of the blockchain, this paper proposed an on-chain and off-chain storage structure, which can alleviate the storage pressure brought to the blockchain system due to the continuous increase of data under the condition of ensuring that the data cannot be tampered, so that the query rate significantly improved
Summary
Fruit and vegetable agricultural products have excellent production advantages in China, which is a large agricultural country with superior climate conditions and abundant species resources. The short storage time and the low storage temperature of storage requirements for fruit and vegetable agricultural products, leading to food safety incidents are extremely prone to occur [3]. Domestic and international safety incidents of fruit and vegetable agricultural products have occurred. The state attaches great importance to the traceability of food supply chain, and countries strengthen management of traceability by issuing relevant laws and regulations. ‘‘Traceable’’ has become a challenge for all food and food-related companies and the traceability system has become an effective means of quality management in the agricultural product supply chain [9]–[11] The Food Safety Law implemented by China in 2009 [8], which provides that food producers and operators should establish a food safety traceability system to ensure food traceability. ‘‘Traceable’’ has become a challenge for all food and food-related companies and the traceability system has become an effective means of quality management in the agricultural product supply chain [9]–[11]
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