$ETH *ETH (Ethereum)* is the second-largest cryptocurrency by market cap, serving as the backbone of the decentralized internet. Launched in 2015 by Vitalik Buterin, Ethereum introduced smart contracts—self-executing code that powers decentralized apps (dApps), DeFi platforms, NFTs, and DAOs. Unlike Bitcoin, which primarily functions as a store of value, ETH fuels a dynamic ecosystem of blockchain innovation. With the Ethereum 2.0 upgrade, the network transitioned to Proof of Stake, reducing energy consumption and increasing scalability. ETH is essential for transaction fees and staking rewards, making it both a powerful utility token and a valuable long-term investment in the digital future.