DMTC+is a landing project of "organic food+intelligent micro supermarket+blockchain", which is an agricultural traceability ecological application chain that has been applied to the development of organic agricultural ecology through the use of Internet of Things technology and blockchain technology. DMTC+combines RFID chip technology, blockchain decentralization, and the characteristics of tamper proof source data to achieve the full process of food traceability from production, warehousing, logistics, to stores, and after-sales. It stores and shares data from all aspects of the industry in a distributed manner, ensuring the safety and transparency of the food trading process....