Does the metaverse have any defense uploading the "same" game?

I won a large game by a tidy margin and submitted it to the metaverse. As noted in my other post when I quit GC it popped an error. I had saved the game just prior to taking out the last opponent. I loaded that saved game and won again and was prompted to submit to the metaverse again. As the rprevious submission was enough to put me in 1st place I did not want to cheat the standings so I clicked "No Thanks". Are the game serialized when they are created or is there some other mechanism to prevent the above scenario of saving before last move, win, submit, load, win, submit, etc.