Dr.
Lioba Heimbach
Distributed Computing Group
Computer Engineering and Networks Laboratory (TIK)
Department Electrical Engineering (D-ITET)
Office ETZ G 95
ETH Zurich
Gloriastrasse 35
8092 Zurich
Switzerland
| phone | +41 44 63 27057 |
| fax | +41 44 63 21036 |
For exciting news and preprints, check out my website.
Publications
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Deanonymizing Ethereum Validators: The P2P Network Has a Privacy Issue
Lioba Heimbach, Yann Vonlanthen, Juan Villacis, and Lucianna Kiffer and Roger Wattenhofer.
34th USENIX Security Symposium, Seattle, Washington, USA, August 2025.
BibTeX -
Transaction Fee Mechanism Design for Leaderless Blockchain Protocols
Pranav Garimidi, Lioba Heimbach and Tim Roughgarden.
Financial Cryptography and Data Security (FC), Miyakojima, Japan, April 2025.
BibTeX -
The Early Days of the Ethereum Blob Fee Market and Lessons Learnt
Lioba Heimbach and and Jason Milionis.
Financial Cryptography and Data Security (FC), Miyakojima, Japan, April 2025.
BibTeX -
On the Lifecycle of a Lightning Network Payment Channel
Florian Grötschla, Lioba Heimbach and Severin Richner and Roger Wattenhofer.
Workshop on Scalability & Interoperability of Blockchains (SIB) @ AFT 24, Vienna, Austria, September 2024.
External BibTeX -
SoK: Attacks on DAOs
Rainer Feichtinger, Robin Fritsch, Lioba Heimbach, Yann Vonlanthen and Roger Wattenhofer.
Sixth International Conference on Advances in Financial Technologies (AFT), Vienna, Austria, September 2024.
BibTeX -
Benchmarking GNNs Using Lightning Network Data (oral presentation)
Rainer Feichtinger, Florian Grötschla, Lioba Heimbach and Roger Wattenhofer.
The Fourth International Workshop on Smart Data for Blockchain and Distributed Ledger (SDBD@KDD), Barcelona, Spain, August 2024.
External BibTeX -
Non-Atomic Arbitrage in Decentralized Finance
Lioba Heimbach, Vabuk Pahari and Eric Schertenleib.
IEEE Symposium on Security and Privacy (S&P), San Francisco, California, USA, May 2024.
Slides (PDF) BibTeX -
Ethereum Proof-of-Stake Consensus Layer: Participation and Decentralization
Dominic Grandjean, Lioba Heimbach and Roger Wattenhofer.
The 5th Workshop on Coordination of Decentralized Finance (CoDecFin), Willemstad, Curaçao, March 2024.
Slides (PDF) BibTeX -
Dissecting the EIP-2930 Optional Access Lists
Lioba Heimbach, Quentin Kniep, Yann Vonlanthen, Roger Wattenhofer and Patrick Züst.
Financial Cryptography and Data Security (FC), Willemstad, Curaçao, March 2024.
BibTeX -
A Fair and Resilient Decentralized Clock Network for Transaction Ordering
Andrei Constantinescu, Diana Ghinea, Lioba Heimbach, Zilin Wang and Roger Wattenhofer.
27th International Conference on Principles of Distributed Systems (OPODIS), Tokyo, Japan, December 2023.
External Slides (PDF) BibTeX -
Ethereum's Proposer-Builder Separation: Promises and Realities
Lioba Heimbach, Lucianna Kiffer, Christof Ferreira Torres and Roger Wattenhofer.
2023 ACM Internet Measurement Conference (IMC), Montreal, QC, Canada, October 2023.
BibTeX -
DeFi Lending During The Merge
Lioba Heimbach, Eric Schertenleib and Roger Wattenhofer.
5th Conference on Advances in Financial Technologies (AFT), Princeton, NJ, USA, October 2023.
Slides (PDF) BibTeX -
Base Fee Manipulation In Ethereum’s EIP-1559 Transaction Fee Mechanism
Sarah Azouvi, Guy Goren, Lioba Heimbach and Alexander Hicks.
37th International Symposium on Distributed Computing (DISC), L’Aquila, Italy, October 2023.
Slides (PDF) BibTeX -
The Potential of Self-Regulation for Front-Running Prevention on Decentralized Exchanges (Best talk award)
Lioba Heimbach, Eric Schertenleib and Roger Wattenhofer.
22nd Workshop on the Economics of Information Security (WEIS), Geneva, Switzerland, July 2023.
Slides (PDF) BibTeX -
FnF-BFT: A BFT protocol with provable performance under attack
Zeta Avarikioti, Lioba Heimbach, Roland Schmid, Laurent Vanbever, Roger Wattenhofer and Patrick Wintermeyer.
30th International Colloquium on Structural Information and Communication Complexity (SIROCCO), Alcala de Henares, Spain, June 2023.
Slides (PDF) BibTeX -
Short Squeeze in DeFi Lending Market: Decentralization in Jeopardy?
Lioba Heimbach, Eric Schertenleib and Roger Wattenhofer.
3rd Workshop on Decentralized Finance (DeFi), Bol, Brač, Croatia, May 2023.
BibTeX -
DeFi and NFTs Hinder Blockchain Scalability
Lioba Heimbach, Quentin Kniep, Yann Vonlanthen and Roger Wattenhofer.
Financial Cryptography and Data Security (FC), Bol, Brač, Croatia, May 2023.
BibTeX -
Exploring Price Accuracy on Uniswap V3 in Times of Distress
Lioba Heimbach, Eric Schertenleib and Roger Wattenhofer.
2nd ACM Workshop on Decentralized Finance and Security (DeFi), Los Angeles, California, USA, November 2022.
Slides (PDF) BibTeX -
Risks and Returns of Uniswap V3 Liquidity Providers
Lioba Heimbach, Eric Schertenleib and Roger Wattenhofer.
4th ACM Conference on Advances in Financial Technologies (AFT), Cambridge, Massachusetts, USA, September 2022.
Slides (PDF) BibTeX -
SoK: Preventing Transaction Reordering Manipulations in Decentralized Finance
Lioba Heimbach and Roger Wattenhofer.
4th ACM Conference on Advances in Financial Technologies (AFT), Cambridge, Massachusetts, USA, September 2022.
Slides (PDF) BibTeX -
Eliminating Sandwich Attacks with the Help of Game Theory
Lioba Heimbach and Roger Wattenhofer.
ACM Asia Conference on Computer and Communications Security (ASIA CCS), Nagasaki, Japan, June 2022.
Slides (PDF) BibTeX -
An Empirical Study of Market Inefficiencies in Uniswap and SushiSwap
Jan Arvid Berg, Robin Fritsch, Lioba Heimbach and Roger Wattenhofer.
2nd Workshop on Decentralized Finance (DeFi), Grenada, May 2022.
External Slides (PDF) BibTeX -
Behavior of Liquidity Providers in Decentralized Exchanges
Lioba Heimbach, Ye Wang and Roger Wattenhofer.
2021 Crypto Valley Conference on Blockchain Technology (CVCBT), Rotkreuz, Switzerland, October 2021.
Slides (PDF) BibTeX -
PIBES - A Competing-Flow-Aware Protocol for Real-Time Video Applications
Lioba Heimbach, Lingfeng Guo, Rudolf KH Ngan and Jack YB Lee.
IEEE Open Journal of the Communications Society, August 2020.
BibTeX -
Ride the Lightning: The Game Theory of Payment Channels
Zeta Avarikioti, Lioba Heimbach, Yuyi Wang and Roger Wattenhofer.
24th Financial Cryptography and Data Security (FC), Kota Kinabalu, Sabah, Malaysia, February 2020.
Slides (PDF) BibTeX
Theses & Labs
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| Title | Type | Contact/Supervisor | Assigned | Student(s) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 | Empirical Analysis of Blockchain Payment Systems | B | Saku Peltonen, Lioba Heimbach | FS 25 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | MEV on Solana | M | Lioba Heimbach | FS 25 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Past Theses & Labs | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Title | Type | Contact/Supervisor | Assigned | Student(s) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | An Empirical Analysis of Polymarket [confidential] | B | Lioba Heimbach, Quentin Kniep | HS 24 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
.png) | Low Fees, High Hopes, Minimal Expectations: Optimistic MEV in the Ethereum Ecosystem [confidential] | B | Lioba Heimbach, Yann Vonlanthen | HS 24 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Incentivizing Simple Transactions [confidential] | B | Lioba Heimbach, Andrei Constantinescu | FS 24 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | LightningBench: A Real-World Payment Network Benchmark for Graph Neural Networks [confidential] | M | Florian Grötschla, Lioba Heimbach | FS 24 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Leverage Staking using Liquid Staking Tokens [confidential] | B | Lioba Heimbach, Robin Fritsch | FS 24 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
.png) | Airdrop Mechanisms and Their Sybil Resistance [confidential] | B | Lioba Heimbach, Yann Vonlanthen | HS 23 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Tokenization of Ethereum Stake [confidential] | S | Lucianna Kiffer, Lioba Heimbach | HS 23 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Attacks on DAOs [confidential] | S | Lioba Heimbach, Yann Vonlanthen | HS 23 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Dawn of an Era: How Layer 2 Solutions Change the Workload on Ethereum Blockchains [confidential] | M | Lioba Heimbach, Quentin Kniep | HS 23 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Crawling the Bitcoin Client Ecosystem | S | Lucianna Kiffer, Lioba Heimbach | HS 23 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Fair Transaction Ordering Website | B | Lioba Heimbach | HS 23 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Network-level Attacks Against Ethereum PoS | B | Lioba Heimbach | HS 23 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bitcoin Lightning Network Statistics and On-Chain Analysis [confidential] | B | Florian Grötschla, Lioba Heimbach | HS 22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Detecting DDoS Attacks on Ethereum Validators [confidential] | M | Lioba Heimbach | HS 22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Fair Transaction Ordering [confidential] | M | Lioba Heimbach, Andrei Constantinescu | HS 22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Incentivizing Simple Transactions [confidential] | S | Lioba Heimbach, Andrei Constantinescu | HS 22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Measuring Cryptocurrency Networks | B | Lucianna Kiffer, Lioba Heimbach | HS 22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Clustering Ethereum Addresses | S | Lioba Heimbach, Quentin Kniep | FS 22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Hedging the Risks of Liquidity Providers | B | Lioba Heimbach, Robin Fritsch | FS 22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Arbitrage Opportunities on Decentralized Exchanges | B | Robin Fritsch, Lioba Heimbach | FS 22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Optimal Liquidity Pool Graphs [confidential] | M | Lioba Heimbach, Judith Beestermöller | FS 22 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Mining and Visualizing Ethereum [confidential] | B | Yann Vonlanthen, Lioba Heimbach | HS 21 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Understanding PancakeSwap Through Data [confidential] | S | Lioba Heimbach, Ye Wang | HS 21 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Understanding Uniswap V3 Through Data [confidential] | B | Lioba Heimbach, Ye Wang | HS 21 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Optimal Trading and Arbitrage in a Network of Decentralized Exchanges [confidential] | B | Robin Fritsch, Lioba Heimbach | FS 21 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||