Events & Talks
This page features my public talks and other outputs that aren’t tied to a specific research paper.
- My Biases against Every Consensus Protocol that is not Nakamoto Consensus [slides], at Web3 Scholars Conference, 2024 Hong Kong Web3 Festival, April 9th, 2024 [youtube]; Bitcoin Singapore, March 8th, 2024.
Critiques non-NC protocols (Bitcoin Unlimited, PoW alternatives, sharding, DAG, PoS). Arguments are drawn from academic publications, including both my own work and the work of others.
- 2020 to 2022 Blockchain Research Panorama (秘猿区块链研究全景, in Chinese) [bilibili] with Yuncong Zhang, Yunwen Liu, Xiao Sui, Hongyin Chen, Wenxuan Zhao, and Zhichun Lu.
This series of lectures systematically introduces 500+ blockchain research papers published in top CS conferences from 2020 to 2022.
- Testing PoW Consensus Algorithm Security [audio] at Zero Knowledge Podcast Episode 155, Nov 11th, 2020.
“We chat about an earlier work he did on evaluating PoW consensus protocols security and explore his more recent work on NC-Max – a consensus protocol that breaks the throughput limit and enables the full utilization of the nodes’ bandwidth in confirming transactions.”
- How to Present [handout] on July 16th, 2020.
A talk on how to give a presentation.
My PhD public defense.
- What PoS Cannot Achieve (But PoW Can) and What PoW Cannot Achieve, Either [slides] at Blockchain Center SF, May 21st, 2019 [youtube]; Bitcoin Wednesday Amsterdam, July 3rd, 2019.
This lecture systematically explores the contributions of Nakamoto consensus (NC) and proof-of-stake (PoS) protocols. I began by outlining a framework for evaluating protocol security, then delved into NC’s achievements and shortcomings. Subsequently, I assessed PoS protocols within the same context, highlighting their inherent, insurmountable limitations. Notably, these limitations have been independently identified and analyzed by other researchers in subsequent years.