NNCP releases can be verified with the following OpenPGP public key:

-----BEGIN PGP PUBLIC KEY BLOCK-----

mQENBFh0lv0BCADmquHdyjr1Mr8VHRNxzipHxmgbdK3CGJL1yzb1ntj7zbJl5UnQ
71cxQ968pYPOBYqsA3oqtURAXzVL6qPGajHM+OXKB5OOjmt7vbd3xP5sBCWOjlrq
S7yWx5ffuXf++tCGiXGkG7q+4zmXJUBuaot0fQ5ebBVLzVVIMv2C4hArZFZtK+YZ
GkrIU+S49joe4qeUdCIQ1KpEB2m774QFxG05fMMys9L60wkL6ZgAy0GadkvCI5jD
Xj5nRxa0fn+T/pcOWCpy7ka4rCR0rKCCNB8ARvpDnknTu2S9cxnWy1uOMv8JQpTb
nY27vprdkH9aykdPl/7uHL/X1hutFxE8FOAjABEBAAG0I05OQ1AgcmVsZWFzZXMg
PHJlbGVhc2VzQG5uY3Bnby5vcmc+iQFXBBMBCABBFiEEksLwrv5zII5Gv/PeKyWG
jnWhqVMFAlh0lv0CGwMMCwoJDQgMBwsDBAECBxUKCQgLAwIFFgIBAwACHgECF4AA
CgkQKyWGjnWhqVOaBggAqWywYtUddljHpiR/SK8uiYjSl8/F4QemM+tsu66GW56Y
ZB7VFOxNFcpEfSnWwH61cJ5lCuRRgyjJcIOptzbKbO+nvYQEtXznjQYoJMLnPqAa
2UPI5Seaijx8sXQWzYRq2Vzl9KUDBlhB2y4jZD4CFC1V29NRbWuPUajZn8UiZzFT
IUR/gjvtYQozF0jN8Sevs+oGAN1tqK5kYo8YXEeL+3NCVUJkqFmBtFVxrxzty4cE
ozgKpXzt9bi10a1hthKluWcZD6Zc4InqQhAGXb2JB2a5wRTs8CkJtHadwBOD3JEt
HjfhBAoZMYmhOBeHt87AG5OjFNRIOJ2rRacnRDA3E4h1BBARCAAdFiEEz2Domlkj
HnbiY2QirhqBCeSYV+8FAlh0lxYACgkQrhqBCeSYV+9i1QD/bdLAY67nf5giI/wQ
i6K7v6PTPFwG6TtG6jj68Cy13RgA/iMuKw7niLwyPWRKzWcMIG1YhVyCNCgKQvFL
vdr6yKbN
=R8E0
-----END PGP PUBLIC KEY BLOCK-----

You can also retrieve it using using DANE, WKD and public keyservers:

% gpg --keyserver hkp://keys.gnupg.net/ --recv-keys 0x2B25868E75A1A953
% gpg --auto-key-locate dane --locate-keys releases at nncpgo dot org
% gpg --auto-key-locate wkd --locate-keys releases at nncpgo dot org
% gpg --auto-key-locate pka --locate-keys releases at nncpgo dot org

-- 
Sergey Matveev (http://www.stargrave.org/)
OpenPGP: CF60 E89A 5923 1E76 E263  6422 AE1A 8109 E498 57EF