fs-verity is a Linux kernel filesystem feature that does transparent
on-demand verification of the contents of read-only files using Merkle
trees.

openSUSE Tumbleweed (ext4 + btrfs) and Leap (15.[45] ext4 only) ship
with kernel support, but until now the corresponding user-space tools
(fsverity-utils) have not been provided. These tools can be used to
enable fs-verity on files, retrieve the digests of fs-verity files, and
sign files for use with fs-verity (among other things).

Links:
https://lists.opensuse.org/archives/list/factory@lists.opensuse.org/message/EM5HFHAYDOJ554OAPXLP27Z57AW27HBX/
https://git.kernel.org/pub/scm/fs/fsverity/fsverity-utils.git
https://www.kernel.org/doc/html/latest/filesystems/fsverity.html