In the future envisioned here, decentralized networks play the role of governments, municipalities and intentional commons, fostering common goods. It is possible to produce common goods when a big-enough community cooperates to bear the cost of production and its implementation; but this, correspondingly, requires large-scale coordination, and large-scale coordination is generally a very hard problem. In this article we introduce Common Good, a blockchain-based application that solves this problem by enabling the coordination and motivation of different relevant actors for achieving a desired common good, by providing it with a “business model” just as in the profit-seeking sector. Our solution takes inspiration from the Social Impact Bonds (SIB) model.