$ETH Ethereum ($ETH) is a decentralized blockchain platform that enables developers to build and deploy smart contracts and decentralized applications (dApps). Launched in 2015 by Vitalik Buterin and others, Ethereum revolutionized blockchain technology by introducing programmability beyond simple transactions. Its native cryptocurrency, Ether (ETH), powers the network, serving both as a means of transaction and a "fuel" for executing smart contracts. Ethereum's blockchain supports various applications, from DeFi platforms to NFTs, and is a key player in the broader crypto ecosystem. The network is transitioning from Proof of Work to Proof of Stake with Ethereum 2.0, improving scalability and energy efficiency.