Stopping Grinding Attacks in Proofs of Space

Explore the intricacies of proofs of space and their vulnerability to grinding attacks in this Stanford Seminar featuring Bram Cohen, founder of Chia Network. Delve into the challenges posed by reduced power requirements in proofs of space and learn about innovative solutions to mitigate grinding attacks. Discover how canonical primitives, verifiable delay functions, and careful system integration can effectively control these vulnerabilities. Gain insights into blockchain technology, cryptocurrencies, and the future of decentralized systems from the inventor of BitTorrent. Examine topics such as economic arguments, rewriting attacks, upfront costs, proof of stake issues, technical solutions, block chain mechanics, storage considerations, and decentralization. Conclude with a roadmap for the future of cryptocurrencies in this comprehensive exploration of cutting-edge blockchain security.

Intro
Economic argument
Grinding attacks
Rewriting attacks
Upfront costs
Nothing at stake
Why Proof of Stake Sucks
Bonding Punishments
Technical Solutions
Requirements
Block chain
Work difficulty resets
Rewriting history
Depth
Storage
Mass storage
Hard drives
Decentralization
If we hit 4T
Roadmap for crypto currencies