Preprint
Sep 2026
Breaking Cycles for Scalable Fair Ordering in Blockchain Systems
In blockchain systems, transaction order directly determines financial outcomes: unfair ordering enables front-running and sandwich attacks that have extracted over \$686M from Ethereum users. Current fair-ordering protocols aggregate pairwise receive-order evidence from replicas. Under contention or adversarial manipu...
Jinchun He, Wangjie Qiu, Yi-Zhong Liu et al.
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