Sponsify is developing a decentralized P2P protocol for event marketing. The protocol allows you to reward users for the promotion of events and will create more efficient and economical model of event-marketing. In this way, Event organizers may not use the services of centralized advertising platforms / companies. The main feature of events (eg concerts) is that they involve the participation of people in different groups. Based on the Law of David P. Reed (2 N - N - 1), a P2P marketing protocol based on reward will lead to a rapid mass distribution of crypto-tokens, due to the formation of a large number interactions between users.