Kelly Protocol is a platform that connects different offline stores and consumers based on blockchain technology. Stores and consumers are the most important participants in the Kelly protocol, and they communicate and interact in various ways mainly through the Kelly protocol. In addition, it is believed that many initial stores will become advertisers and carry out multi-channel business marketing through the Kelly agreement. CRE is the main token of the Kelly Protocol, which can be used to pay for using smart contract services, reward watching advertisements, and conduct commodity transactions.