John Yang | Nodeinfra

I am the founder and CEO of Nodeinfra, a Polygon CDK implementation provider and validator company based in Korea. I discovered two consensus bugs in Geth. One of these bugs led to the Ethereum hard fork on November 11, 2020, due to legacy Geth version deployments. At the time, it was considered Ethereum's most significant challenge since the DAO fork in 2016. I hold a Ph.D. in Computer Science from Seoul National University and have published papers at top systems conferences such as OSDI, ATC, and EuroSys.