Yin Yong, member of the Standing Committee of the Beijing Municipal Party Committee and deputy mayor, today published an article on "Improving the supply-side mechanism and improving the efficiency of credit services for private small and micro enterprises. Yin Yong said in the article that in order to make better use of government data, Beijing has vigorously promoted the construction of big data for more than a year. In July this year, the data directory of all government data in Beijing was locked and shared in the form of a blockchain, what we call a "directory chain." Now all government departments in Beijing can see Beijing data resources information. At the end of this year, all government data in Beijing will be on the cloud. In the "cloud", each commission has its own room. The difference from the past is that each room has two keys, one key is owned by the commissions and the other, and the second key is held by the big data bureau. We have established a consensus mechanism through the blockchain. If most people think that some data should be shared, they can use a second key to open the door. With this foundation, data can be used to finance private small and micro enterprises. The newly established Beijing Financial Group has created a financial service platform for small and micro enterprises. This platform was not long established, but more than 1,000 companies have registered, and about 900 million yuan of loans have been matched.