$ETH Ethereum (ETH) is a leading decentralized blockchain platform that powers smart contracts and decentralized applications (dApps). Launched in 2015 by Vitalik Buterin and a team of developers, it revolutionized blockchain by enabling programmable transactions beyond simple peer-to-peer transfers. Ether (ETH), its native currency, is used to pay for network fees and computational services. In 2022, Ethereum upgraded to a proof-of-stake model, cutting energy usage dramatically and enhancing network sustainability. It forms the foundation for thriving ecosystems like decentralized finance (DeFi), non-fungible tokens (NFTs), and decentralized autonomous organizations (DAOs). Continuous upgrades aim to boost scalability, security, and user experience across the network.