It seems that Stash SOP stashes the geometry at the current frame when you press "Stash Input" button. Is there a way to stash multiple frames? Like a Stash SOP that stores the geometry's state from frame 1 to frame 10.

I know Cache SOP, but Cache is quite different from Stash.

you can stash only a single geometry
if that geometry is something like Motion Clip or Channel Primitives then in theory it can contain animation data so in similar fashion you can pack deforming geo as packed prim per frame, stash, then restore and keep just a single prim based on frame, etc

I see. On second thought, it might not be a good idea as it will bloat the .hip file size by a lot. I'll use File Cache instead.