In order to take the advantages of new technologies such as blockchain, smart contract and Internet of Things, and improve the informatization level of supply chain, a supply chain prototype system, which is based on blockchain, smart contract and Internet of Things, is developed. With the help of two-dimensional code, RFID and NFC in the Internet of Things, automatic uploading of the supply chain data is implemented. The system uses blockchain and smart contract to completely save the data of the whole supply chain, thus it ensures the data is transparent, traceable and cannot be tampered with. Meanwhile it takes protection of privacy data into account and provides data query functions at different levels for users. Through these improvements, the supply chain system is more automated, safer and more reliable, and makes traceability easy.

blockchain  /  smart contract  /  internet of things