I ran them both through enikesha and the only identical part is the opener on the first frame. Even then, it never was Nuthug's opener. It was Extremerun's, hence Nuthug's replay being named "extremerunedit"!
Anyway yeah, I don't enforce the need for permission to use such a short piece of an opener. If it was something like 100-200+ frames you were taking, credit where it's due though.