[pacman-dev] Public Keys

Hello everybody, I've installed pacman-git on a test machine to play with package signing. Since today some packages in [core] and [extra], perhaps others, are signed. I found two keys on public key servers, the third one is still missing. The key in question was used to sign xfdesktop. Is there any official place I can find keys that are used to sign Arch packages? Or did I miss anything else? -- Regards, Chris