Yi Cloud Chain is a value network data focusing on the vertical public chain, aiming to create credible data. People's daily behavior is closely related to the Internet. Every time people use the internet, it gets recorded. The larger the amount of data, the higher the value. Monopoly Internet companies, relying on their rich application scenarios and businesses, ingest a large amount of personal data to serve themselves and obtain huge benefits. Others who need data face high data usage fees and data authenticity issues. The data provider cannot monitor personal data security and does not receive any dividends in return.