We present pacts - a new way of connecting crypto projects to power users and, ultimately, a new onchain marketing primitive. Through utilizing user onchain history-based screening and streamed milestone-locked rewards, pacts can offer higher longer-term user engagement and protection from sybillers and bots, saving money for protocols and making sure that marketing incentive budgets go to real users. The design of pacts is rooted in behavioral research and analysis of advantages and pitfalls...