You can get a fresh version from keyservers/github as explained at
https://qubes.3isec.org
Available templates and packages are transitioning to the new key already.
Hey @unman - awesome work on the templates!
I’m wondering if you have any idea why the archlinux-minimal (and non-minimal variant) image refuse to adopt the transient hostname of the qube. With any other template - if the qube is called “work” (for example) the hostname is set the same but not with arch for some reason.
I’d appreciate if you could provide any insight on this. 
EDIT: I solved this - turns out the archlinux templates are missing the “inetutils” package which is needed to provide the hostname command. You don’t technically need this except for the fact that the /usr/lib/qubes/init/qubes-early-vm-config.sh script specifically calls that command to set the hostname.
@unman can you upload a full archlinux template instead minimal please ? you deleted old from website 