Ethereum (ETH) is a leading smart contract platform that allows developers to build decentralized applications (dApps) and execute smart contracts. It operates on a proof of stake consensus mechanism, aiming to improve scalability and reduce energy consumption compared to traditional proof of work systems. Ethereum is supported by a diverse ecosystem of projects and investors, including FTX Holdings, Multicoin Capital, Alameda Research, Andreessen Horowitz, and Galaxy Digital. It is also included in various cryptocurrency indices, such as GMCI and Coinbase 50 Index, reflecting its significance in the digital asset market.