Ethereum ($ETH) is the second-largest cryptocurrency by market capitalization, renowned for powering smart contracts and decentralized applications (dApps). Created in 2015 by Vitalik Buterin, it allows developers to build and deploy self-executing contracts directly on its blockchain, eliminating the need for intermediaries. With the Ethereum 2.0 upgrade, the network shifted from Proof of Work (PoW) to Proof of Stake (PoS), significantly cutting energy usage and enhancing scalability. Ethereum is a cornerstone of the crypto space, supporting DeFi, NFTs, and countless blockchain innovations. ETH is essential for covering transaction fees and participating in staking.

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