Bitcoin

Joseph Bonneau is co-author of Bitcoin and Cryptocurrency Technologies, a popular textbook. At NYU, he works as an assistant professor exploring cryptography and security. His YouTube

Bitcoin is an immutable, append-only blockchain ledger that reaches consensus through proof-of-work. The contents of the ledger are financial transactions–people sending and

Your friends from college are asking you how to buy Bitcoin. Your mom is emailing you articles about the benefits of decentralized peer-to-peer networks. Your shoe shiner is telling you

A cryptocurrency has a distributed ledger called a blockchain. The blockchain keeps track of every transaction that occurs across the cryptocurrency. This blockchain must stay up-to-date

A blockchain is a data structure that provides decentralized, peer-to-peer data distribution. Bitcoin is the most well-known blockchain, but in the next decade we will see many more