Copyright for pyethash source package in Jammy

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: pyethash
Upstream-Contact: Péter Szilágyi 
Source: https://pypi.org/project/pyethash/

Files: *
Copyright:
    © 2015–2017 Péter Szilágyi  and others
    © 2015–2016 Jeffrey Wilcke  and others
    © 2015 Lefteris Karapetsas  and others
    © 2015 Gav Wood  and others
    © 2015 Vitalik Buterin  and others
    © 2015 Matthew Wampler-Doty  and others
License: GPL-3+
License-Grant:
    This file is part of ethash.
    .
    ethash is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    .
    ethash is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    .
    You should have received a copy of the GNU General Public License
    along with ethash.  If not, see .

Files: src/libethash/sha3.*
Copyright:
    © 2014 David Leon Gil
License: CC0
License-Grant:
    License: CC0, attribution kindly requested. Blame taken too,
    but not liability.

Files: debian/*
Copyright:
    © 2009–2019 Ben Finney 
License: GPL-3+
License-Grant:
    This is free software: you may copy, modify, and/or distribute this work
    under the terms of the GNU General Public License as published by the
    Free Software Foundation; version 3 of that license or any later version.


License: GPL-3+
    On Debian systems, the complete text of the GNU General Public License
    version 3 can be found in the file ‘/usr/share/common-licenses/GPL-3’.

License: CC0
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