Vlad introduces Casper, a proof-of-stake protocol for Ethereum that has been in development since September 2014. While he and Vitalik have some disagreements on implementation details, they have reached consensus on many core properties of the proof-of-stake system.
This article discusses the historical development of Casper consensus mechanism in Fall 2014, focusing on game theory and economic security modeling research. The research on 'bribing attacker models' led to breakthrough solutions for addressing long-range attack problems in proof-of-stake systems.
This appears to be the beginning of a blog post about Casper research, following encouragement from Vitalik and others to share design philosophy. The article text is incomplete, cutting off mid-sentence after mentioning the author's agreement to discuss their Casper research.
This article discusses Ethereum's Casper consensus mechanism, which is part of the Serenity upgrade. It acknowledges contributions from Vlad Zamfir on by-block consensus and other core Casper concepts, continuing the technical explanation series on Ethereum's proof-of-stake transition.
