$ETH Ethereum is a popular cryptocurrency and blockchain platform launched in 2015 by Vitalik Buterin. Unlike Bitcoin, which mainly supports digital payments, Ethereum allows developers to build decentralized apps (dApps) using smart contracts. Its native coin, called Ether (ETH), is used to pay transaction fees and services on the network. Ethereum aims to create a decentralized internet where users control their data. It moved from Proof of Work to a more energy-efficient Proof of Stake system in 2022, reducing energy use. Ethereum is widely used in DeFi, NFTs, and gaming, making it one of the most important blockchain projects today.