Our answer - decentralized assessment.
Every paper on the DEIP platform can be assessed by experts of the corresponding discipline. On the one hand, the authors have additional incentives to attract as many reviewers as possible, because their assessment influences the amount of reward the research will get. In their turn, the reviewers have their own financial and reputation incentives for reviewing.
Besides that, the review can also be assessed by the expert community, or, in other words, the curators. Their assessment is also taken into account when distributing the reward.