Blockchain Technology-Based Agri-Food Supply Chain System

- Supply chains are turning into automated and extremely complicated networks and are becoming a key source of potential benefits in the modern world. At the same time, people are becoming more interested in food product quality. However, it is tough to identify the provenance of data and preserve its traceability throughout the supply chain network. The old supply chains are centralized and they depend on a third party for transactions. These centralized systems lack transparency, accountability, and audibility. In our proposed solution, we have offered a complete solution for the block-chain based Agriculture and Food (AgriFood) supply chain. It uses the key characteristics of blockchain and smart contracts, deployed on an Ethereum blockchain network. Although blockchain enables the immutability of data and records in the network, it still fails to solve certain major difficulties in supply chain management the trustworthiness of the involved entities, accountability of the trading process, and the traceability of the items. Therefore, there is a requirement for a dependable system that assures traceability, trust, and delivery mechanism in the AgriFood supply chain. In the proposed system, all transactions are written to a blockchain which finally uploads the data to Interplanetary File Storage System (IPFS) (IPFS). The storage system returns a hash of the data which is kept on blockchain and ensures an efficient, safe, trustworthy solution. Our solution provides smart contracts together with accompanying algorithms to display the interaction of entities in the system. Furthermore, simulations and assessments of smart contracts together with the security and vulnerability studies are also included in this paper.