Co-Model Release

[_mika_]

I shot some collabs recently and I've been looking for a co-model agreement form to fill out. The one from ManyVids seems to be written in a fair and understandable way (for the most part) and suits my needs (I got one from a different site as well, but it seemed like it was more for studios paying their models than co-models sharing the rights to the video), but I'm confused how to fill out one part of it:

Specifically what do i write after "on" and before "this"? I'm not a native English speaker and it's a legal document, so please don't laugh if it's something completely obvious.

ETA: Since I'm already asking probably stupid questions:
There's also a fragment that says "This agreement shall be governed by and construed in accordance of the laws of..." Should I just write in our home country or rather the country where the website(s) I'm posting content on is registered?

 

[_mika_]

I'm just gonna respond myself in case someone else might be looking for an answer. I asked MV support and on (...) is for the day of the week, and in point 15. it's laws of wherever you reside.