# Preethi Kasireddy - How Does Ethereum Work, Anyway (Highlights) ![rw-book-cover|256](https://readwise-assets.s3.amazonaws.com/static/images/article0.00998d930354.png) ## Metadata **Cover**:: https://readwise-assets.s3.amazonaws.com/static/images/article0.00998d930354.png **Source**:: #from/readwise **Zettel**:: #zettel/fleeting **Status**:: #x **Authors**:: [[Preethi Kasireddy]] **Full Title**:: How Does Ethereum Work, Anyway? **Category**:: #articles #readwise/articles **Category Icon**:: 📰 **URL**:: [medium.com](https://medium.com/p/22d1df506369) **Host**:: [[medium.com]] **Highlighted**:: [[2021-02-11]] **Created**:: [[2022-09-26]] ## Highlights - A blockchain is a “cryptographically secure transactional singleton machine with shared-state.” - Unlike externally owned accounts, contract accounts can’t initiate new transactions on their own - GHOST protocol says we must pick the path that has had the most computation done upon it.