Ethereum

A blockchain-based software platform that enables developers to build and deploy decentralized applications, aka dApps. It is like the Android or iOS of the crypto space. Besides providing decentralized processing facilities, Ethereum also has its own cryptocurrency called ether.

Learn more

First released	2015
Developed by	Vitalik Buterin, Gavin Wood, Charles Hoskinson, Anthony Di Iorio & four others
Open-source	Yes

Interesting facts

Ethereum was the first project to introduce decentralized applications; the tech that paved the way for DeFi and NFTs.
Of Ethereum's eight co-founders, only Vitalik Buterin is still actively working on the blockchain platform.