TDC project profile:The Cloud Network (TDC) is a data economy foundation chain based on blockchain technology. The TDC ecosystemrevolves around data ownership distribution, data leakage, data authenticity and data incentives in the existing data economy, using blockchains. The distributed network, encryption algorithm, anonymity, non-tampering and the economy of the economy have developed a wealth of trusted data components to provide users and developers with safe and convenient services. TDC through the chain and chain synchronization management Ways to open up data link, data storage, data calculation, data exchange and other aspects，to provide a shared, co-governing, transparent and secure underlying service for the future of the world's petascale data economy market, and to create a digital era for the future. Public facilities have become a global trusted data value network platform.