Add the default Arch Linux keys

pacman-key

  • Wrapper script for GnuPG used to manage pacman's keyring.
    More information: <https://man.archlinux.org/man/pacman-key>.
  • Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

sudo pacman-key --populate {{archlinux}}

click the source code to copy install pacman-key on any operating system with command-not-found.com