All reports of unknown-copyright-format-uri for the archive. The extended description of this tag is:
The copyright file appears to intended as machine-readable, but Lintian cannot recognize its format URI. It could be a typo for a common URI or a syntax error in the first paragraph. Please file a bug against Lintian if you believe that the copyright file in syntactically valid and the URI is correct.
Emitted (non-overridden): 1, overridden: 0, total: 1
The package names link to the relevant maintainer page and the corresponding report for the source package. The links go to the full maintainer report page, which includes info and experimental tags and overridden tags, rather than the default page that shows only errors and warnings.