My marina would have a conniption if I locked anything to the jack stands, so I'd exercise some caution with that approach.
I see from your following post that this is for safety and convenience. Mine is lying on the ground, with a flexible bicycle lock through it and around the foot of a stand. You have to lock it to something or it will walk.
Before spring, I move it across the property and lock it to a fence, so they can launch me without it getting in the way. The walk is quite far to be a very practical place to leave it all winter, but could be done if they were inclined to the same conniption. Thankfully, they are not.
Some years ago, I was at a yard that really had no other practical place to secure it, so I just removed the lock about 3 days prior to launch. When I went back 4 days later, it was gone. This yard literally has hundreds of boats on the hard over the winter, so I started walking around. Sure enough, about 100 yards away, my ladder was extended and tied to the gunnel of someone else's boat. They weren't there, but it was left like they owned it.
What possess people to do this? It's incredibly common. Like its all community property. Ask, and I'm happy to share. Don't and I may stick an ice pick in your tire. (okay....deep soothing breaths........)