Fair on the Surface: Transaction-Ordering Bias and MEV in Mysticeti DAG-based BFT Protocol
2026-07-16T08:52:21Z•1ac493efdf0159de146994df11c1c7c8baf3297eeb386df5c1ec0c6df6f58b7d
AgoraDAG-based-BFTMEVMysticetiSuiblockchaincollective-trainingcrypto-economicsdifferential-codingdistributed-computationdistributed-mldownlink-availabilityenvironmental-impactfederated-learningfront-runningmitigationmodel-poisoning-riskpermissionless-trainingrandom-tiebreakersovereign-AIstable-sorttie-breakertransaction-orderingvalidator-bias
What happened
This collection contains several CS research reports with notable security and operational implications. The most critical finding is from “Fair on the Surface: Transaction-Ordering Bias and MEV in Mysticeti DAG-based BFT Protocol”: Mysticeti (used by Sui) exhibits deterministic same-round ordering bias because committed-graph merging uses validator-index as a tiebreaker and the gas-price re-sort is stable. Lower-index validators win same-round order ≈89% (≈94% if they selectively remain silent), enabling rent extraction/front‑running without paying higher fees; authors validate the issue on S
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- arxiv_cs_dc
- Record identifier
- 1ac493efdf0159de146994df11c1c7c8baf3297eeb386df5c1ec0c6df6f58b7d
- Enrichment time
- 2026-07-16T08:52:21Z
- AI-assisted enrichment
- Yes
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