Aviv Yaish

I research blockchains at The Hebrew University.


Office A414,

School of CS & Eng.,

Givat Ram campus,


My research focuses on the economics of computational systems and protocols, such as cryptocurrencies. I am part of Prof. Aviv Zohar’s lab, and my research is supported by the Ministry of Science & Technology, Israel.

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 (עבודה מודרכת, קורסים מספר 67524/67537/67538).


Aug 13, 2022 I will present “Blockchain Stretching & Squeezing” on 09.09, 11:00ET @ SIGecom Seminar Series. Everyone is invited, I will publish the link soon!

Ongoing Papers

  1. An economic model for DeFi platforms
  2. Attacks on Proof-of-Work and Proof-of-Stake consensus mechanisms

Selected Publications

  1. Uncle Maker: (Time)Stamping Out The Competition in Ethereum
    Aviv YaishGilad Stern, and Aviv Zohar
  2. 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
  3. Correct Cryptocurrency ASIC Pricing: Are Miners Overpaying?
    Aviv Yaish, and Aviv Zohar