$ETH Ethereum (ETH) is a decentralized blockchain platform that enables smart contracts and decentralized applications (DApps). It was proposed in 2013 by Vitalik Buterin and launched in 2015. Ethereum allows developers to build and deploy applications without third-party interference. Its native cryptocurrency, Ether (ETH), is used to pay for transactions and computational services on the network. Ethereum pioneered the concept of programmable blockchain with its Solidity programming language. It transitioned from Proof of Work (PoW) to Proof of Stake (PoS) with the Ethereum 2.0 upgrade, enhancing scalability, security, and energy efficiency. Ethereum supports innovation in finance, gaming, supply chains, and more.