Aviv Yaish

I research blockchains at The Hebrew University.

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My research focuses on the economics of computational systems and protocols, such as cryptocurrencies. I am part of Prof. Aviv Zohar’s lab.

If you would like to collaborate or discuss on any of my ongoing projects, feel free to get in touch. This includes bright undergrads who are looking for a tutorial work mentor.

News

Aug 30, 2023 The Vulnerable Nature of Decentralized Governance in DeFi was accepted to DeFi23.
Aug 24, 2023 I will present Suboptimality in DeFi at the Science of DeFi Stability workshop on September 1st.
Aug 17, 2023 Aviv Zohar will present Speculative DoS at SBC’s consensus workshop on August 27th.
Aug 9, 2023 I will present Suboptimality in DeFi at UCSB’s DeFi seminar on November 3rd.
Aug 5, 2023 I will present Speculative DoS at CBER forum’s job market symposium on October 19th!

Selected Papers

  1. 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
  2. Correct Cryptocurrency ASIC Pricing: Are Miners Overpaying?
    Aviv Yaish, and Aviv Zohar
    In The 5th Conference on Advances in Financial Technologies (AFT ’23), 2023
  3. 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
  4. 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

Preprints

  1. Speculative Denial-of-Service Attacks in Ethereum
    Aviv YaishKaihua QinLiyi Zhou, and 2 more authors
    2023
  2. Suboptimality in DeFi
    Aviv YaishMaya DotanKaihua Qin, and 2 more authors
    2023
  3. Blockchain Censorship
    Anton Wahrstätter, Jens Ernstberger, Aviv Yaish, and 8 more authors
    2023
  4. 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