Software that is open for anyone to modify, copy, share or build upon. The code for blockchains like Ethereum and Bitcoin is the first decentralized digital currency. It was created in 2009, by an anonymous founder or group of founders... More is Open Source, for anyone to verify and improve it.
I'm a literature professional in the crypto world since 2016. It doesn't sound very compatible, but I've been learning and teaching about blockchain and cryptos for international portals since then. After hundreds of articles and diverse content about the topic, now you can find me here on Alfacash, working for more decentralization.