It is managed by obergix.
See WebIDForDebianWebServices for a more general description of the use of WebID in Debian.
offers reference URIs for FOAF profiles for Debian contributors that can be linked from the ?PTS
$ curl -s -H "Accept: text/turtle" http://webid.debian.net/maintainers/obergix
This fetches the RDF Turtle document which describes a Semantic Web resource named <http://webid.debian.net/maintainers/obergix#agent> who is a foaf:Person holding a foaf:OnlineAccount (<http://webid.debian.net/maintainers/obergix#account>).
For Debian project members, the FOAF URI is derived from the debian login, as <http://webid.debian.net/maintainers/LOGIN#agent>.
For non-project members, the FOAF URI is derived from an URL-encoded + lowercase email, as <http://webid.debian.net/maintainers/john.smith%40example.com#agent>.
Here are the next things planed :
generate the files periodically (the files are updated every day)
- unify people's various accounts (exploiting the GPG keyring is an option)
migrate to somewhere on debian.org
provide WebID authentication means (for instance with WebID + TLS), as an alternative to DebianSingleSignOn
interlink with other FOAF profiles of the contributors (possibly, using ?MyProfile)
Integrate with other Django-based Debian Web services. See http://www-public.telecom-sudparis.eu/~berger_o/weblog/2013/11/06/generating-webid-profiles-for-debian-project-members/ for a more recent experiment.