How Ethereum Works
Ethereum is a programmable blockchain that powers smart contracts, DeFi, NFTs and most of Web3.
Ethereum took the idea of a blockchain and made it programmable. Beyond sending its native coin (ETH), Ethereum runs smart contracts — self-executing code that powers applications no single company controls.
Proof of stake
Since 2022, Ethereum has secured itself with proof-of-stake: validators lock up ETH and are rewarded for honestly proposing and checking blocks, using a fraction of the energy of mining.
What it powers
Ethereum is the home of DeFi, NFTs and thousands of applications. Layer-2 networks now handle much of the activity, cutting fees while settling back to Ethereum for security.
Educational content only — not financial advice. Always do your own research before investing in crypto.
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