$ETH $ETH or Ethereum is an open-source blockchain platform and cryptocurrency. It was founded in 2015 by Vitalik Buterin. Like Bitcoin, Ethereum is a digital currency, but its main strength is in building smart contracts and decentralized applications (dApps). Ethereum's own currency is known as "Ether" ($ETH), which is used for transactions and to pay fees on the network. It helps developers build their own blockchain-based apps. The Ethereum 2.0 upgrade has further enhanced scalability, security, and sustainability. Ethereum is a popular and important asset for investment in the current crypto market.