According to China News Network, the 21st Century Economic Research Institute and the Ali Research Institute jointly released the "Building a Global Digital Economy Highland: 2019 Digital Yangtze River Delta Integration Development Report" (hereinafter referred to as the report), and believes that digital integration is accelerating the elimination of the region. The gap in the supply of people's livelihood services. The report shows that in the field of new technology applications, the Yangtze River Delta is the first region to use the blockchain as a digital “ground”. Metro travel, medical treatment, judicial disputes, and corporate loans are all on the chain, and the average efficiency of work has increased by 10,000 times. The application of blockchains has also caused the boundaries between the cities of the Yangtze River Delta to disappear.