Tilikum: Fair Transaction Ordering for DAG-Based Consensus Without Weak Edges
arXiv 2606.27250·medium signal
DeFi applications are vulnerable to reordering attacks that let adversaries extract Blockchain Extractable Value (BEV/MEV). While fair-ordering research has focused on linear chains like Ethereum, DAG-based consensus protocols — increasingly adopted for scalability — have stayed largely unprotected. Tilikum introduces fair ordering on a DAG without relying on weak edges, closing a gap for high-throughput blockchains.