Block Withholding in PoW Revisited ─ Structural Weaknesses and BDS
During my PhD, I uncovered critical structural flaws in the Block Withholding (BWH) attack, showing how miners’ betrayal (Block Double-Submission) renders it largely infeasible in public mining pools
My First Car with an Engine Power Once Defeated a Mighty Dynasty
Personal milestone—purchasing a car—with a historical exploration of the Opium Wars and the powerful legacy of the steamship Nemesis
Prague in Spring - at the Previous Heart of European Politics
Explore Prague's rich history and its role at the center of European politics, from the Prague Spring of 1968 to its history as the capital of the Holy Roman Empire, through a visual journey of its iconic landmarks and tumultuous past.
Experience in the Korean military
what I could see and feel in the Korean military as an officer
Trip in Tallinn, Medieval old town in Estonia, not for Estonian
In the modern Estonian city Tallinn, I looked around the old medieval city, and the Stalin-style village.