Thank you for replying. I’m an exclusive author so I’m selling only on codecanyon. So is he. We’ve signed a contract that forbids me to sell that code anywhere else for 2 years. These two years were already over but we decided to keep selling only here. About the proofs, yes I have. And he is not denying that either. He only claimed that he added some features and improved the original source code and is now reselling it. This is not about a DCMA anymore. After they issued a counter DCMA, envato is not ruling this thing at all. They have copies of our source codes and changes history. Here is a copy of their answer:
"The author of the item you lodged a DMCA take down notice against has sent us a DMCA counter notification (“put back” notice). We have attached a copy of the counter notification to this message.
The item will now be reinstated between 10 and 14 business days from when we received the counter notice, but the item will not be reinstated if we receive evidence from you that you have commenced legal proceedings against the author about their item."
How am I supposed to start a legal proceeding against an US company from here?
Screenshots taken from his demo: https://drive.google.com/open?id=0BzYeKpz42MkGSFlDRk54Zmtuenc
Screenshots taken from ours: https://drive.google.com/open?id=0BzYeKpz42MkGbVJPMDM5QkNhQlE
All the screenshots are named the same way so they can easily be compared one against another.