Yi Cloud Chain is a value network data focused on vertical public chains, aimed at creating trustworthy data. People's daily behavior is closely related to the Internet. Every time people use the internet, it is recorded. The larger the amount of data, the higher the value. Monopoly internet companies rely on their rich application scenarios and businesses to consume a large amount of personal data for their own services and obtain huge benefits. Other people who need data face high data usage costs and data authenticity issues. The data provider is unable to monitor personal data security and does not receive any dividend returns....