There are lots of records like: Largest pumpkin/person. Those records you can't say on forehand that you're gonne break them, I believe if you can proof afterwards it's fine as well. 

> Date: Thu, 29 Sep 2011 17:46:17 +0200
> From: valdelli@gmail.com
> To: wikilovesmonuments@lists.wikimedia.org
> Subject: Re: [Wiki Loves Monuments] Making it into Guinness?
>
> On Thu, Sep 29, 2011 at 5:36 PM, Sylvain Boissel
> <sylvain.boissel@wikimedia.fr> wrote:
> > In the French FAQ, it says you have to register *before* attempting to break
> > a record, and that they can't validate a record if it is not the case.
> > Sylvain
>
> I agree, in general to be in the Guinness the event must be announced
> before and must be controlled in order to prevent frauds.
>
> Ilario
>
> _______________________________________________
> Wiki Loves Monuments mailing list
> WikiLovesMonuments@lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/wikilovesmonuments
> http://www.wikilovesmonuments.eu