Originally Posted by LuckyR
That is, the only video that would matter would be you playing a match you cared about. But if you were to play such a match, the result of it would tell you your level without anyone having to witness the match itself.
Go play a 3.5
Sounds good, but it's not like there are computer-rated players just hanging out on every street corner wanting to play meaningless (but serious and competitive) matches so that other players can effectively gauge their level. If that were the case there'd be no need for self-rating guidelines.
OP, I think your best bet is to post unedited match footage, from behind, both players trying their hardest. But you'll probably find that people here disagree on your rating anyway.