Convenient to use for users

Ceres provides a callable user system for all kinds of decentralized applications, an interface that can be used for data query, and a framework that can be used to develop. Through open protocol of Ceres, other decentralized contracts can be very simple to become more user-friendly, which means more convenient for users to use (such as avoiding complex addresses and replacing them with usernames). At the same time, Ceres provide support to the developers includes obtaining the user's data through the user's authorized signature, and rewarding the user according to rules. Likewise, authorized application developers will be able to use the programmable metadata recorded in Ceres to improve the richness of Ceres' database.