Ethereum is an open-source, public, blockchain-based distributed computingplatform and operating system featuring smart contract (scripting) functionality. It supports a modified version of Nakamoto consensus via transaction-based state transitions. Ethereum The Ethereum Project’s logo, first used in 2014 Original author(s)Vitalik Buterin, Gavin Wood, Joseph LubinInitial release30 July 2015Repository Written inGo, C++, RustOperating systemClients available for Linux, Windows, macOS, POSIX, RaspbianPlatformx86-64, ARMTypeDecentralized computing, Blockchain, CryptocurrencyLicenseGPLv3, LGPLv3, MIT[1][2] Ether is a token whose blockchain is generated by the Ethereum platform. Ether can be transferred between accounts and used to compensate participant mining nodes for computations performed.[3] Ethereum provides a decentralized virtual machine, the Ethereum Virtual Machine (EVM), which can execute scripts using an international network of public nodes.[4] The virtual machine’s instruction set, in contrast to others like Bitcoin Script, is thought to be Turing-complete. “Gas”, an internal transaction pricing mechanism, is used to mitigate spam and allocate resources on the network.[4] Ethereum was proposed in late 2013 by Vitalik Buterin, a cryptocurrency researcher and programmer. Development was funded by an online crowdsale that took place between July and August 2014.[4] The system then went live on 30 July 2015, with 72 million coins “premined”. This accounts for about 68 percent of the total circulating supply in 2019. [5] In 2016, as a result of the exploitation of a flaw in The DAO project’s smart contract software, and subsequent theft of $50 million worth of ether,[6]Ethereum was split into two separate blockchains – the new separate version became Ethereum (ETH) with the theft reversed,[7] and the original continued

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