Ethereum

Ethereum is a decentralized blockchain platform that extends cryptocurrency functionality to enable smart contracts and decentralized applications, known as dApps. Launched in 2015 by Vitalik Buterin and others, Ethereum introduced programmable blockchain technology that allows developers to build complex applications without relying on centralized intermediaries. The platform uses the Ethereum Virtual Machine to execute code across a distributed network of nodes, ensuring transparency and censorship resistance. Ethereum has evolved through multiple upgrades, most notably transitioning from proof-of-work to proof-of-stake consensus in 2022, significantly reducing energy consumption while maintaining security and decentralization. Example: Uniswap, a decentralized exchange, operates as a smart contract on Ethereum, allowing users to swap tokens directly from their wallets without intermediaries. Other major applications include Aave for lending and borrowing, MakerDAO for stablecoin generation, and OpenSea for NFT trading, all built on Ethereum's smart contract infrastructure. Why it matters for blockchain technology: Ethereum pioneered smart contract capabilities and remains the most active blockchain by developer count and transaction volume. Its ecosystem has catalyzed innovations in DeFi, NFTs, and decentralized governance, establishing standards and best practices adopted across the entire blockchain industry.

Category: blockchain technology

Explore the full Web3 Glossary — 2,062+ expert-curated definitions. Need guidance? Talk to our consultants.