All reports of orig-tarball-missing-upstream-signature for the archive. The extended description of this tag is:
The packaging includes an upstream signing key but the corresponding .asc signature for one or more source tarballs are not included in your .changes file.
Please ensure a <package>_<version>.orig.tar.<ext>.asc file exists in the same directory as your <package>_<version>.orig.tar.<ext> tarball prior to dpkg-source --build being called.
If you are repackaging your source tarballs for Debian Free Software Guidelines compliance reasons, ensure that your package version includes dfsg or similar.
Severity: normal, Certainty: certain
Check: changes-file, Type: changes
This tag has not been emitted in any package tested by Lintian.