github.com/codingfuture/orig-energi3@v0.8.4/COPYING

                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

 Copyright (C) 2018-2019 The Energi Core Authors.
 Copyright (C) 2014 The go-ethereum Authors.

 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

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