In China, the development of the blockchain industry is affected by national policies, and there are still policy-based business models. Especially after October 14, 2019, all provinces across the country have announced their own special plans for the blockchain industry. In April 2020, the National Development and Reform Commission officially included the blockchain in the "new infrastructure" category. At the same time, the Blockchain-based Service Network (BSN), which was led by the State Information Center and co-sponsored by China Mobile and China UnionPay, announced that it was officially put into commercial use. At first glance, the infrastructure construction of the blockchain has achieved little success. But the author has carefully read the BSN technical white paper (the 9-page technical white paper is the shortest I have ever seen!) The conclusion is that BSN is just a multi-cloud communication network that supports multi-city nodes, and its job title email list essence is network communication technology. When the business model of the blockchain has not been clear and the value proposition has not yet reached a broad consensus, the deployment of cross-chain nodes across the country has been launched. It is difficult to imagine what kind of blockchain applications will run on BSN and what kind of business The scenario requires "cross-chain", what is the actual business value? It is undeniable that the inclusion of blockchain in the category of "new infrastructure" will promote the development of the blockchain industry. But in terms of what blockchain is, where is its value, and what business problems can it solve? Interested friends can refer to the current embarrassing situation of Guiyang Big Data Exchange.