$ETH Ethereum ($ETH) is a decentralized blockchain platform known for its smart contract functionality, enabling developers to build decentralized applications (DApps). Unlike Bitcoin, which primarily serves as digital gold, Ethereum powers a vast ecosystem of DeFi, NFTs, and Web3 innovations. Its transition to Ethereum 2.0, with the Proof-of-Stake (PoS) consensus, has improved scalability and energy efficiency, making it a key player in the future of blockchain technology.