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In this protocol, we introduce the notion of a token to mitigate the actions taken by an adversary in an attack scenario. Such tokens can be purchased voluntarily by users, who can then choose to include the token numbers in their transactions. If the users include the token in their transactions, then our protocol requires the block-builder to order the transactions strictly according to token numbers. We show through extensive simulations that this reduces the probability that the adversaries can benefit from MEV transactions as compared to existing practices. We show that successful MEV attacks decrease by about 70% on average.<\/jats:p>","DOI":"10.1145\/3730410","type":"journal-article","created":{"date-parts":[[2025,4,21]],"date-time":"2025-04-21T12:04:06Z","timestamp":1745237046000},"page":"1-23","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Masquerade: Simple and Lightweight Transaction Reordering Mitigation in Blockchains"],"prefix":"10.1145","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2465-352X","authenticated-orcid":false,"given":"Arti","family":"Vedula","sequence":"first","affiliation":[{"name":"College of Engineering, The Ohio State University, Columbus, Ohio, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7355-634X","authenticated-orcid":false,"given":"Shaileshh Bojja","family":"Venkatakrishnan","sequence":"additional","affiliation":[{"name":"College of Engineering, The Ohio State University, Columbus, Ohio, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1117-325X","authenticated-orcid":false,"given":"Abhishek","family":"Gupta","sequence":"additional","affiliation":[{"name":"College of Engineering, The Ohio State University, Columbus, Ohio, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2026,5,6]]},"reference":[{"key":"e_1_3_1_2_2","unstructured":"Decentralized finance market to surge and Market Research Future. 2023. 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