Jeckeys With the development of the data age, data became an important resource, and the importance of data governance and data security became even more important. On 10 July, at the World Artificial Intelligent Forum in 2021, a number of experts, academics focused on data highlighting the importance of technical integration of block technology with large data, artificial intelligence and privacy calculations. “The world’s new cities with a chain of mind” 2021 “Only a single technology in th...