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Ethereum, the smart‑contract platform launched in 2015, drives innovation in decentralized finance and NFTs.

About this subject

Ethereum emerged in 2015 as the first blockchain focused on smart contracts, created by Vitalik Buterin and collaborators. The network enables developers to write self‑executing code that guarantees the execution of agreements without intermediaries, reducing costs and increasing transparency in financial and property transactions.

Technically, Ethereum runs on the Ethereum Virtual Machine (EVM), which interprets contract bytecode. The platform originally used proof‑of‑work (PoW) for block validation, but in 2022 migrated to proof‑of‑stake (PoS) with "Ethereum 2.0," cutting energy consumption by more than 99% and boosting confirmation speed. Second‑layer solutions such as Optimism and Arbitrum have further expanded scalability, allowing thousands of transactions per second.

In the ecosystem, Ethereum is the backbone of decentralized finance (DeFi) projects, where liquidity, lending, and insurance are created without banks. It has also become the gold standard for non‑fungible tokens (NFTs), enabling the tokenization of art, music, and even game items. Autonomous decentralized organizations (DAOs) rely on Ethereum contracts for transparent governance and global participation.

Culturally, Ethereum has inspired communities of developers, investors, and artists who take part in hackathons, token governance, and financial inclusion initiatives. The platform’s future promises continuous improvements in interoperability, transaction cost reduction, and expansion of corporate use cases, cementing its role as a digital innovation engine.

Frequently Asked Questions

What is the main difference between Ethereum and Bitcoin?

Bitcoin was designed mainly as a store of value and payment method, whereas Ethereum was built to run smart contracts, enabling complex decentralized applications.

What does the shift to proof‑of‑stake (PoS) mean?

PoS replaces traditional mining with validation based on stake, drastically cutting energy consumption and improving network scalability.

How are NFTs created on Ethereum?

NFTs are minted using standards such as ERC‑721 or ERC‑1155, which set rules for unique or multi‑token serialization, allowing artists and creators to register digital ownership on the blockchain.