BACC is a decentralized content community based on POA consensus mechanism. Make full use of the advantages and characteristics of block chain and AI technically, through intelligent screening and promotion of high-quality content for users, and ultimately return the rights and interests of content ownership, revenue rights, contribution to the community to users, so as to realize the promotion of personal benefits and the fission of influence. The goal of BACC is to integrate industry resources such as global content carriers, opinion leaders, communities and institutions, to build a high-quality content community ecosystem through block chains and AI technology, to introduce users and to transform them into a large user community according to their interpersonal relationships, and to build a sustainable development ecosystem.