Ethereum (ETH) is a blockchain-based platform that introduced smart contracts, enabling decentralized applications (dApps), DeFi protocols, and NFT marketplaces. Ethereum transitioned to a proof-of-stake (PoS) consensus with Ethereum 2.0, reducing energy consumption and improving scalability. Developers build on Ethereum Layer 2 solutions, like Optimism and Arbitrum, to enhance transaction speeds and lower fees. ETH remains essential for staking rewards, Ethereum gas fees, and governance in decentralized protocols, driving its demand in the crypto ecosystem.
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