#ETH Ethereum (ETH) is a decentralized blockchain platform enabling smart contracts and decentralized applications (dApps). Its native cryptocurrency, Ether (ETH), fuels transactions and computational services. Founded in 2015 by Vitalik Buterin, Ethereum revolutionized blockchain with programmable contracts, powering DeFi, NFTs, and Web3 innovations. In 2022, Ethereum transitioned from energy-intensive Proof-of-Work (PoW) to eco-friendly Proof-of-Stake (PoS) in "The Merge," boosting scalability and reducing fees. Despite competition from Solana and Cardano, Ethereum remains dominant in DeFi (~60% market share) and NFTs. ETH’s price fluctuates (currently ~$3K–$4K), with a market cap of ~$400B. Future upgrades aim to enhance speed and efficiency, solidifying Ethereum’s lead in blockchain technology.