This is Deepin GNU's GnuPG keyrings of archive keys.

You should have received a copy of the GNU General Public License with
your Ubuntu system, in /usr/share/common-licenses/GPL, or with the
Ubuntu GNU ubuntu-keyring source package as the file COPYING.  If not,
write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
Floor, Boston, MA 02110-1301 USA.
