Aviv Yaish


My research delves into the intricate relationship between the economics and security of distributed systems, such as cryptocurrencies. If you want to collaborate or discuss my research interests, feel free to get in touch. This includes bright undergrads looking for a tutorial work mentor.

Bio. I am a Ph.D. candidate at the Hebrew University. I am also a research consultant at Matter Labs, and a visiting researcher at the University of Innsbruck, funded by an AIANI visiting researcher fellowship. During my studies, I was generously supported by an Ethereum Foundation grant, the four-year merit-based Ze’ev Jabotinsky Fellowship for Ph.D. students, and the Hebrew University’s rector award for first-in-class M.Sc. students.


Nov 5, 2023 Yuzhe Tang kindly invited me to present Speculative DoS at Syracuse University on Dec. 22!
Sep 29, 2023 I was invited to speak at YoungEC ‘24!
Sep 25, 2023 I will present Speculative DoS at Tokenomics ‘23.
Aug 30, 2023 The Vulnerable Nature of Decentralized Governance in DeFi was accepted to DeFi23.
Aug 24, 2023 I’ll present Suboptimality in DeFi at the Science of DeFi Stability workshop on September 1st.

Selected Papers


  1. The Vulnerable Nature of Decentralized Governance in DeFi
    Maya DotanAviv Yaish, Hsin-Chu Yin, and 2 more authors
    In Proceedings of the 2023 ACM CCS Workshop on Decentralized Finance and Security, 2023
  2. Correct Cryptocurrency ASIC Pricing: Are Miners Overpaying?
    Aviv Yaish, and Aviv Zohar
    In 5th Conference on Advances in Financial Technologies (AFT 2023), 2023
  3. Uncle Maker: (Time)Stamping Out The Competition in Ethereum
    Aviv YaishGilad Stern, and Aviv Zohar
    In Proceedings of the 30th ACM Conference on Computer and Communications Security (CCS ’23), 2023


  1. Blockchain Stretching & Squeezing: Manipulating Time for Your Best Interest
    Aviv YaishSaar Tochner, and Aviv Zohar
    In Proceedings of the 23rd ACM Conference on Economics and Computation, 2022



  1. GreedyTFMs.png
    Greedy Transaction Fee Mechanisms for (Non-)myopic Miners
    Yotam Gafni, and Aviv Yaish
    In Annual Conference of the Israeli Chapter of the Game Theory Society, 2023
  2. MeasuringBlockchainCensorship.png
    Blockchain Censorship
    Anton WahrstätterJens ErnstbergerAviv Yaish, and 8 more authors
  3. SpeculativeDoS.png
    Speculative Denial-of-Service Attacks in Ethereum
    Aviv YaishKaihua QinLiyi Zhou, and 2 more authors
  4. SuboptimalityDeFi.png
    Suboptimality in DeFi
    Aviv YaishMaya DotanKaihua Qin, and 2 more authors