Alexei Zamyatin bio photo

Alexei Zamyatin

I'm a researcher and software engineer, interested in the security and decentralization of cryptocurrencies. I'm from Vienna, Austria. Currently in London, UK.

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My Publications

  • Pay-To-Win: Incentive Attacks on Proof-of-Work Cryptocurrencies [PDF]
    Judmayer A, Stifter N, Zamyatin A, Tsabary I, Eyal I, Gazi P, Meiklejohn S, Weippl E
    Cryptology ePrint Archiv, Report 2019/775
    July 2019

  • A Deep Dive into Bitcoin Mining Pools: An Empirical Analysis of Mining Shares [PDF]
    Romiti M, Judmayer A, Zamyatin A, Haselhofer B
    Workshop on the Economics of Information Security (WEIS)
    June 2019

  • XCLAIM: Trustless, Interoperable Cryptocurrency-Backed Assets [PDF]
    Zamyatin A, Harz D, Lind J, Panayiotou P, Arthur G, Knottenbelt WJ
    IEEE Symposium on Security and Privacy (S&P)
    May 2019

  • Uncle Traps: Harvesting Rewards in a Queue-based Ethereum Mining Pool [PDF]
    Werner S, Pritz P, Zamyatin A, Knottenbelt WJ
    EAI International Conference on Performance Evaluation Methodologies and Tools (VALUETOOLS)
    March 2019

  • Echoes of the Past: Recovering Blockchain Metrics From Merged Mining [PDF]
    Stifter N, Schindler P, Judmayer A, Zamyatin A, Kern A, Weippl E
    International Conference on Financial Cryptography and Data Security (FC)
    February 2019

  • Committing to Quantum Resistance: A Slow Defence for Bitcoin against a Fast Quantum Computing Attack [PDF]
    Stewart I, Illie D, Zamyatin A, Werner S, Torshizi MF, Knottenbelt WJ
    Royal Society Open Science 2018/5/180410; DOI - 10.1098/rsos.180410
    June 2018

  • Multisignatures for Cryptocurrency-Backed Tokens (Poster) [PDF]
    Zamyatin A, Harz D, Lind J, Panayiotou P, Arthur G, Knottenbelt WJ
    International Workshop on Cryptocurrencies and Blockchain Technology (CBT)
    September 2018

  • Agreement with Satoshi - On the Formalization of Nakamoto Consensus [PDF]
    Stifter N, Judmayer A, Schindler P, Zamyatin A, Weippl E
    Cryptology ePrint Archive, Report 2018/400
    May 2018

  • Flux: revisiting near blocks for proof-of-work blockchains [PDF]
    Zamyatin A, Stifter N, Schindler P, Weippl E, Knottenbelt WJ
    Cryptology ePrint Archive: Report 2018/415
    May 2018

  • (Short Paper) A Wild Velvet Fork Appears! Inclusive Blockchain Protocol Changes in Practice [PDF]
    Zamyatin A, Stifter N, Judmayer A, Schindler P, Weippl E, Knottenbelt WJ
    Workshop on Bitcoin and Blockchain Research at Financial Cryptography and Data Security
    March 2018

  • Swimming with Fishes and Sharks: Beneath the Surface of Queue-based Ethereum Mining Pools [PDF]
    Zamyatin A, Wolter K, Werner S, Mulligan CEA, Harrison PG,, Knottenbelt WJ
    IEEE International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS)
    September 2017

  • Merged Mining: Curse or Cure? [PDF]
    Judmayer A, Zamyatin A, Stifter N, Voyiatzis AG, Weippl E
    International Workshop on Cryptocurrencies and Blockchain Technology (CBT)
    September 2017