I have an error from Artix pacman "Signature from xxx is unknow trust".
":: File /var/cache/pacman/pkg/xxxx.tar.zst is corrupted (invalid or corrupted package (PGP signature))."
"error: failed to commit transaction (invalid or corrupted package (PGP signature))
Errors occurred, no packages were upgraded."
Upon checking the Artix package's sha512sum matches the package's sha512 pulled directly from Arch.
RTFM:
https://wiki.artixlinux.org/Main/Repositories
man pacman
man pacman.conf
man checkupdates
https://wiki.archlinux.org/title/Mirrors#Sorting_mirrors
It is recommended to repeat this reading process regularly, until enough grey matter is created in the cavity between the left and right ear to sustainably understand the update process.
We don't have any package named 'xxxx' in our repos.