MarsSeed [1] filed a deletion request for gtkhash-nautilus-git [2]:
Upstream not maintained for 2 years (automated translation updates
aside).
And this is now incompatible, unbuildable with current nautilus from
Arch repo.
A user recommended a working alternative, AUR/nautilus-
checksums{,-git}. [a][b]
[a]: https://aur.archlinux.org/packages/nautilus-checksums
[b]: https://aur.archlinux.org/packages/nautilus-checksums-git
[1] https://aur.archlinux.org/account/MarsSeed/
[2] https://aur.archlinux.org/pkgbase/gtkhash-nautilus-git/
