According to Tencent's deep network news, Xiao Xue, senior vice president of Inspur Group, said in an interview that “guaranteeing the correspondence between data on the chain and the physical world is a cost and cost-effective problem. There are generally two solutions, one is the whole process. Monitoring with IoT devices, this can ensure that the deviation is reduced, but the cost is too expensive, few companies can afford this cost; the second is to make each node credible. On the blockchain, if a node is written once The 'untrusted' label will be kicked out of the blockchain and the alliance, and it will be difficult to turn over. It is the good currency to drive the currency effect. In fact, the technology is not a panacea, the core is the design problem of the business scene, only the business Incorporate deep integration with technology to achieve empowerment and business reengineering."