Centareum is a decentralized proximity-based mobile marketing platform built on top of the Ethereum Blockchain platform that allows brick and mortar to connect with the consumers in the vicinity and entice them with the promotions while paying zero commission. The platform enables retailers to both advertise and interact with consumers on a single platform. We have an existing MVP, which offers 3 in 1 Platform (Run promotions, Business Analytics & Point of Sale) to retailers with nearly zero transaction fees or commissions. Centareum MVP is receiving extremely positive feedback from both retailers and consumers. In the near future, it will also facilitate the creation of a global marketing network by empowering various entities to build multiple applications on the platform using decentralized application (DApps). The DApps on Centareum will be powered by the ERC 20 smart contract. Centareum is an open protocol that powers the creation and promotion of marketing channel to consumers without any intermediaries. The protocol provides the network with six essential systems. A KYC system that removes inefficiencies, enhances security and privacy, removes spam, and improves user experience. A secure payment system that allows safe P2P transaction between entities to send and receive Centa tokens after a successful exchange of services or goods. An AI-powered marketing platform that promotes ‘quick’ ads delivery based on user proximity, behavior, loyalty and ads popularity. A reputation system that couples a valid identity, which is obtained by the KYC system, with a rating determined by transparent, immutable review, and scoring interchange between P2P entities (such as business and customers). A first of its kind analytical tool that gives a true profile of the existing customers and real-time offline conversion statistics. A reward system that incentivizes the customers through promotion and Centa Tokens.