Not with that key, I hope? Could be a bit of a catch-22 for end users.
[code]error: antergos-keyring: signature from “Antergos Build Server (Automated Package Build System) [email protected]” is unknown trust
:: File /var/cache/pacman/pkg/antergos-keyring-20140915-1-any.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).[/code]