I would like to stream the run to my youtube channel for evidence-sake. If there is no catagory for it on Speedrun.com do I have the right to claim that my run is, potentially, the world record run? Provided that the run would actually be the fastest.

I am currently practising running Lost Legacy on crushing difficulty. Why is there not a catagory for it at the moment? Are crushing runs allowed? Would appreciate any responses, especially from the mods. Thank you.