The original concept of a Bitcoin sidechain was proposed by Adam Back, Matt Corallo, Luke Dashjr, Mark Friedenbach, Gregory Maxwell, Andrew Miller, Andrew Poelstra, Jorge Timón, and Pieter Wuille, who all went on to found Blockstream, in 2014. The idea was proposed to allow a more liberal development environment, where people could try new ideas and technologies on a sidechain without risking the security of the main Bitcoin blockchain. Since then the design space of sidechains has grown rather large. At the end of the day sidechains is a very broad term that encompasses a large range of very diverse…
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