International Association
for Cryptologic Research

The decentralized nature of blockchains is touted to provide censorship resistance. However, in reality, the ability of proposers to completely control the contents of a block makes censorship relatively fragile. To combat this, a notion of inclusion lists has been proposed in the blockchain community. This paper presents the first formal study of inclusion lists. Our inclusion list design leverages multiple proposers to propose transactions and improve censorship resistance. The design has two key components. The first component is a utility-maximizing input list creation mechanism that allows rational proposers to achieve a correlated equilibrium while prioritizing high-value transactions. The second component, AUCIL (auction-based inclusion list), is a mechanism for aggregating the input lists from the proposers to output an inclusion list.