CV

General Information

Full Name Aviv Yaish
Email aviv@avivyaish.com
Research Interests Blockchains, Economics, Security, Decentralized Finance, Mechanism Design

Research Positions

  • 2023 -
    Visiting Researcher
    University of Innsbruck
    • Funded by an AIANI visiting researcher fellowship
  • 2023 -
    Research Consultant
    Matter Labs
  • 2023 - 2023
    Research Associate (Internship)
    Matter Labs

Education

  • 2019 -
    PhD candidate
    The Hebrew University
    • On the direct-to-PhD track
    • Recipient of the merit-based 4-year Ze’ev Jabotinsky Fellowship
  • 2016 - 2018
    Master of Science (M.Sc.), Computer Science
    The Hebrew University
    • Recipient of the rector prize for ranking first in class
    • Recipient of the dean's prize for outstanding academic achievements
  • 2013 - 2016
    Bachelor of Science (B.Sc.), Computer Science
    The Hebrew University
    • Recipient of the merit-based "Amirim science" excellence scholarship

Honors, Awards and Funding

  • 2023
    • ACM CCS23 distinguished paper
    • AIANI visiting researcher fellowship
    • Ethereum Foundation grant, DoS Implications of Blockchain Censorship (leader)
    • Ethereum Foundation grant, Blockchain Censorship - Quantitative Analysis of Censorship on Public Blockchains (contributor)
    • Melabev's certificate of appreciation for outstanding volunteer services
    • Flashbots vulnerability bounty
    • Ethereum Foundation bug bounty
    • AFT23 student travel funding
    • ACM CCS23 travel grant
    • iMentor23 travel funding
    • ACM EC23 student travel funding
    • Devconnect academic sponsorship (awarded, could not participate)
    • Fenbushi Capital Research House Program (awarded, could not participate)
    • HUJI's Diversity Unit's March 23 travel scholarship for outstanding PhD students
    • HUJI's Diversity Unit's September 23 travel scholarship for outstanding PhD students
  • 2022
    • HUJI Authority for Research Students' travel grant
    • Vaad Edat Hasfaradim’s scholarship
  • 2021
    • Award for excellence in teaching
    • Ethereum Foundation bug bounty (awarded, did not collect)
  • 2020
    • Ranked 9th out of 111 teaching staff in HUJI's CS department
  • 2019
    • Ze’ev Jabotinsky 4 year merit-based fellowship
    • Zcash Foundation Zcon1 travel scholarship
  • 2018
    • HUJI Rector's prize for ranking first in MSc class
    • HUJI Dean's award for outstanding academic achievements
  • 2016
    • First place at HUJI's annual machine learning hackathon
  • 2013
    • Amirim science excellence scholarship for undergraduates
  • 2007
    • Ranked in the 99th percentile in Israel's SAT equivalent (psychometric exam)

Publications

  • USENIXSEC24
    Speculative Denial-of-Service Attacks in Ethereum
    Aviv Yaish, Kaihua Qin, Liyi Zhou, Aviv Zohar, Arthur Gervais
    • In the Proceedings of the 33rd USENIX Security Symposium (USENIXSEC '24)
    • Accepted to Tokenomics '23
    • Funded by an Ethereum Foundation academic grant
    • Awarded a bug bounty by the Ethereum Foundation
    • Awarded a bug bounty by Flashbots
  • WWW24
    Blockchain Censorship
    Anton Wahrstätter, Jens Ernstberger, Aviv Yaish, Liyi Zhou, Kaihua Qin, Taro Tsuchiya, Sebastian Steinhorst, Davor Svetinovic, Nicolas Christin, Mikolaj Barczentewicz, Arthur Gervais
    • In the Proceedings of the 2024 ACM Web Conference (WWW '24)
  • CCS23
    Uncle Maker: (Time)Stamping Out The Competition in Ethereum
    Aviv Yaish, Gilad Stern, Aviv Zohar
    • In the Proceedings of the 2023 ACM SIGSAC Conference on Computer and Communications (CCS '23)
    • ACM CCS23 distinguished paper
  • AFT23
    Correct Cryptocurrency ASIC Pricing: Are Miners Overpaying?
    Aviv Yaish, Aviv Zohar
    • In the Proceedings of the 5th Conference on Advances in Financial Technologies (AFT '23)
  • DeFi@CCS23
    The Vulnerable Nature of Decentralized Governance in DeFi
    Maya Dotan, Aviv Yaish, Hsin-Chu Yin, Eytan Tsytkin, Aviv Zohar
    • In the Proceedings of the 2023 ACM CCS Workshop on Decentralized Finance and Security (DeFi@CCS '23)
  • EC22
    Blockchain Stretching & Squeezing: Manipulating Time for Your Best Interest
    Aviv Yaish, Saar Tochner, Aviv Zohar
    • In the Proceedings of the 23rd ACM Conference on Economics & Computation (EC '22)
    • Awarded a bug bounty by the Ethereum Foundation

Preprints

  • 2024
    Barriers to Collusion-resistant Transaction Fee Mechanisms
    Yotam Gafni, Aviv Yaish
  • 2024
    Strategic Vote Timing in Online Elections With Public Tallies
    Aviv Yaish, Svetlana Abramova, Rainer Böhme
  • 2024
    Competitive Revenue Extraction from Time-Discounted Transactions in the Semi-Myopic Regime
    Yotam Gafni, Aviv Yaish
  • 2023
    Airdrops: Giving Money Away Is Harder Than It Seems
    Johnnatan Messias*, Aviv Yaish*, Ben Livshits
    • Equal contribution denoted by ^*
  • 2023
    Greedy Transaction Fee Mechanisms for (Non-)myopic Miners
    Yotam Gafni, Aviv Yaish
    • Presented at Technion's Industrial Engineering & Management Research Day
    • Accepted to the Conference of the Israeli Chapter of the Game Theory Society
  • 2023
    Suboptimality in DeFi
    Aviv Yaish, Maya Dotan, Kaihua Qin, Aviv Zohar, Arthur Gervais
    • Presented at Schloss Dagstuhl seminar 22421 (invited talk)
    • Presented at The Science of Decentralized Financial Stability Workshop (invited talk)
    • Presented at The UCSB-ECON DeFi Seminar (invited talk)

Teaching

  • 2018 -
    System Introduction (67100), creator and lecturer
    The Hebrew University
    • Sole lecturer and creator, course averages 850 students/year
  • 2017 - 2023
    From NAND to Tetris (67925/6), lecturer
    The Hebrew University
    • Sole lecturer, managed a team of 7 TAs, course averages 500 students/year
  • 2020
    Introduction to Cryptocurrencies (67513), co-creator and TA
    The Hebrew University

Undergraduate Project Supervision

  • 2022 - 2023
    Nimrod Rak
    The Hebrew University
    • Title: Simulating cryptocurrency networks using real clients
  • 2022 - 2022
    Eytan Tsytkin
    The Hebrew University
    • Title: Application of Big Data methods to cryptocurrencies
  • 2021 - 2022
    Imri Paran
    The Hebrew University
    • Title: An exploration of Bitcoin's attack surface

Service

  • 2024
    • Journal referee. ACM TEAC, INFORMS MOR.
    • Program committee. MARBLE, EC, AFT.
  • 2023
    • Program committee. ACM DeFi Workshop.
    • In-person volunteer. ACM EC.
    • Reviewer. ACM CCS23, ACM EC23, FC23 DeFi Workshop, WEIS23, FC24, SODA24, WWW24.
  • 2022
    • Reviewer. IEEE S&P22, ACM WWW23, ACM-SIAM SODA23.
  • 2020
    • Reviewer. ACM AFT20.

Talks

  • 2024
    HUJI's Distributed Algorithms, Networking and Security Seminar
    Incentives in the Ether: Practical Cryptocurrency Economics & Security
  • 2024
    The Hebrew University's EconCS seminar (invited)
    Uncle Maker: (Time)Stamping Out The Competition in Ethereum
  • 2024
    UCSB-ECON DeFi Seminar (invited)
    Suboptimality in DeFi
  • 2023
    Syracuse University's Friday seminar (invited)
    Speculative Denial-of-Service Attacks in Ethereum
  • 2023
    The 30th ACM Conference on Computer and Communications Security
    Uncle Maker: (Time)Stamping Out The Competition in Ethereum
  • 2023
    CBER Forums's Top Blockchain PhD Graduates Symposium (invited)
    Speculative Denial-of-Service Attacks in Ethereum
  • 2023
    Yale's CS Seminar (invited)
    Speculative Denial-of-Service Attacks in Ethereum
  • 2023
    Princeton's Algorithmic Mechanism Design for Cryptocurrencies seminar (invited)
    Uncle Maker: (Time)Stamping Out The Competition in Ethereum
  • 2023
    Tokenomics
    Speculative Denial-of-Service Attacks in Ethereum
  • 2023
    Advances in Financial Technologies
    Correct Cryptocurrency ASIC Pricing: Are Miners Overpaying?
  • 2023
    The Science of Decentralized Financial Stability Workshop (invited)
    Suboptimality in DeFi
  • 2023
    The Annual Conference of the Israeli Chapter of the Game Theory Society
    Greedy Transaction Fee Mechanisms for (Non-)myopic Miners
  • 2023
    Innsbruck University's Department of Computer Science's seminar (invited)
    Uncle Maker: (Time)Stamping Out The Competition in Ethereum
  • 2023
    Innsbruck University's Security and Privacy Lab (invited)
    Blockchain Stretching & Squeezing: Manipulating Time For Your Best Interest
  • 2022
    HUJI's Distributed Algorithms, Networking and Security Seminar (invited)
    Uncle Maker: (Time)Stamping Out The Competition in Ethereum
  • 2022
    The Crypto Economics Security Conference
    Uncle Maker: (Time)Stamping Out The Competition in Ethereum
  • 2022
    The Crypto Economics Security Conference
    Correct Cryptocurrency ASIC Pricing: Are Miners Overpaying?
  • 2022
    Schloss Dagstuhl seminar 22421 (invited)
    Supoptimality in DeFi
  • 2022
    The Federmann Cyber Security Center's Cyber Retreat (invited)
    Uncle Maker: (Time)Stamping Out The Competition in Ethereum
  • 2022
    Chaincode Labs' Research Seminar (invited)
    Blockchain Stretching & Squeezing: Manipulating Time For Your Best Interest
  • 2022
    The 23rd ACM Conference on Economics and Computation
    Blockchain Stretching & Squeezing: Manipulating Time For Your Best Interest
  • 2021
    First Israeli Blockchain Research Day (invited)
    Correct Cryptocurrency ASIC Pricing: Are Miners Overpaying?
  • 2019
    The Hebrew University's Cryptocurrencies Seminar (invited)
    Correct Cryptocurrency ASIC Pricing: Are Miners Overpaying?

Other

  • 2020-2022
    Volunteered with elderly people with dementia
    Melabev