Agri-food supply-chain traceability: a multi-layered solution

This paper focuses on a first development of a smart-contract for a possible blockchain solution regarding the traceability problem of the agri-food supply-chain. This blockchain solution arises from a system engineering approach as a previous analysis, to understand what information needs to be traced along the agri-food supply-chain, according to the needs identified by consumers. A multi-layer networking solution was proposed with the interconnection of Hyperledger Fabric and other technologies, such as IoT devices. "Foodchain" is the chaincode developed and presented in this paper. It runs with a simulated environment in a cloud platform, using different Virtual Machines as the different actors of the agrifood supply-chain.