TLDR
Before the blockchain has launched, the protocol went through a number of significant evolutions and design decisions. The purpose of this article will be to go through the various evolutions of the protocol from start to launch. The history of applications and businesses in the Ethereum ecosystem, as well as the history of Casper and sharding research, is deliberately out of scope. By far the most prominent on the side was Gavin Wood who reached out to me in December 2013: Jeffrey Wilcke, developer of the client called “backethereal” Jeffrey. Jeffrey: “Gavin’s initial contributions were two-fold notice that you might notice that the contract model in the initial design was an “internal transaction”via the TL;DR App
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