What is the Gains Network derivatives?

Could you please elaborate on what the Gains Network derivatives are? Are they a type of financial instrument or product that operates within the cryptocurrency ecosystem? How do they function, and what benefits or risks do they pose to investors? Is there a specific use case or scenario where these derivatives might be particularly useful or advantageous? Additionally, what is the current state of the Gains Network derivatives market, and what are some of the challenges or opportunities facing it?