If you want to give it a try, just create a snapshot on a specific device
And change all the blocks on the origin, there you are, you now have a cow
device containing all data needed.
How to move this snapshot device to another server, reattach it to an empty
lv volume as a snapshot.
lvconvert -s, command requires an argument of an existing snapshot volume
name.
But there is no snapshot on the new server, so it can't re-attach the
volume.
So what procedures should be invoked to create just the detached references
in LVM, so that the lvconver -s command can work?

Just copy the snapshot to another server, by whatever method you would
use to copy the COW and Data volumes (I prefer partclone for supported
filesystems).  No need for lvconvert.  You are trying WAY WAY too hard.
Are you by any chance trying to create an incremental backup system
based on lvm snapshot COW?  If so, say so.

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