Ethereum (ETH) What is Ethereum? Ethereum is a decentralised blockchain platform that supports smart contracts and decentralised applications (dApps), powered by its native cryptocurrency, Ether (ETH). Explanation Ethereum’s smart contract capabilities have made it the foundation for most decentralised finance (DeFi) projects and NFTs. It’s one of the most widely used blockchain platforms globally. Practical Example A developer builds a decentralised finance application on Ethereum, leveraging its robust smart contract functionality.