Babbitt reported that on the morning of April 27th, the "2050 Conference · 'Building a Smart City on the Blockchain' Newborn Forum" jointly sponsored by Babbitt and Zinc Link was held in Yunqi Town, Hangzhou. Ma Qianli, the vice president of Babbitt, shared the application of the original chain in the big data of the city government in the forum. He pointed out that the city big data includes the data of the right and the behavior type, and the blockchain does not need to record the detailed property data. Only the periodic and fixed batches of the property-type data hash value are chained; the practical effect of behavioral data depends on the large-scale computing process of the computer, and its distributed computing paradigm: data resource * computing power = calculation decision, calculation Force = (algorithm + chip capability) * number of chips. Finally, he said that after the data island is completely broken, it will be one person and one city.