Ethereum is a global, open-source platform for decentralized applications. In other words, it is a decentralized blockchain platform that enables developers to build and deploy smart contracts and applications without central authority control. Unlike Bitcoin, which primarily functions as digital currency, Ethereum operates as a programmable global computer where developers can create any type of decentralized service. 

The platform hosts over $14 billion in DeFi applications with hundreds of thousands of active users across financial protocols, NFT marketplaces, and gaming platforms. Its transition to Proof of Stake in September 2022 reduced energy consumption by over 99%, addressing environmental concerns while strengthening network security.

The network operates through thousands of independent validator nodes that process transactions and execute smart contracts on the Ethereum Virtual Machine. Smart contracts are self-executing programs written in Solidity that automatically