You know, looking at the BoxTop$ they appear to only have some sort of letter/number code on them that might distinguish them, but on whether or not they are specifically from Target is a good question. If anyone figures this out, please post it here.
When you look on the box tops coordinators forum--- they are saying they should be from Target--- Target is saying they can scan the bx tops and tell its from Target-- I don't believe that's true-- but not sure if you want to take a chance on that...