Description：Ethereum is the first decentralized open source blockchain with smart contract capabilities, first proposed by Vitalik Buterin in a white paper in late 2013 and launched in 2015. Ethereum allows anyone to deploy decentralized smart contracts and applications, and is the foundation of an interoperable, decentralized application ecosystem powered by the token economy and automated smart contracts. Assets and applications designed on Ethereum are built with automated smart contracts without the need for central or intermediaries. The network is powered by its local cryptocurrency ETH, which is used to pay for transaction fees on the network. Ethereum is open source, programmable and censor-resistant, and is the backbone of the decentralized Internet.