and advanced programming tools (culminating in the first C++ language workbench). Two startups later, a mutual friend made the introduction to Vitalik Buterin, and within a few weeks he finished coding the first functional implementation of Ethereum. He quickly became Ethereum’s CTO and effective platform architect. He coined the terms “EVM,” “PoA,” and “Web 3.0,” with the latter being his forward-looking idea for the decentralized web platform. He devised the Solidity contract language and wr