Mechanism Design for Blockchain Storage Sustainability

In a blockchain system, ensuring storage sustainability is crucial for the long-term feasibility of the system's operation. This article presents a comprehensive review of the state- of-the-art mechanisms designed to address the storage sustainability problem. We first introduce technological mechanisms aimed at reducing miners' storage costs. Next, we discuss incentive mechanisms that encourage users to pay adequate transaction fees to cover storage costs. Finally, we discuss future challenges and open problems in this field.