Hard to tell, but it would seem that if all the of the serial numbers are included that it might be. I am not sure of the laws governing the reselling of software that the original buyer registers. I would assume that once it is registred, one would not be able to change the information. It seems that in most cases you don't own the software, you simply own the right to use it. That often times falls contrary to popular belief. If you are interested in it, it might be worth shooting an e-mail to curious labs and the other authors of the software and see what they have to say about it.