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Cryptocurrency: zk-SNARK Privacy Coins, Why and How They Work


Maksym Petkus (Jun 2019)
    Despite the existence of multiple great resources on zk-SNARK
construction, from original papers to explainers, due to the sheer
number of moving parts the subject remains a black box for many. While
some pieces of the puzzle are given one can not see the full picture
without the missing ones. Hence the focus of this work is to shed
light onto the topic with a straightforward and clean approach based
on examples and answering many whys along the way so that more
individuals can appreciate the state of the art technology, its
innovators and ultimately the beauty of math. Paper's contribution is
a simplistic exposition with a sufficient and gradually increasing
level of complexity, necessary to understand zk-SNARK without any
prerequisite knowledge of the subject, cryptography or advanced math.
The primary goal is not only to explain how it works but why it works
and how it came to be this way.