Back in Venezuela I trained under a "blackbelt" for 3 years. And it turns out he might not have even been a black belt when i started with him. He wore a black belt everyday since I met him. Recently I just got a photo of him during the years I trained with him wearing a purple belt. In the picture he is with Kyra Gracie and you can see he is wearing a purple belt. There is also a IBJJF tournament registration and bracket information in 2011 of him entering the purple belt division. There is also a IBJJF tournament registration and bracket information of him in 2013 as in the brown belt division. I met him in december of 2010 and he wore a black belt. Claimed he trained under Rokler Gracie. There are photos of him Rickson and Rolker but you cannot see the belt he has on. I got contacted by a former student of his asking me to verify that he was a blackbelt. I know he trained under Rolker Gracie but I dont know if he was awarded his blackbelt by him. What would be the best way to verify this? Normally I would let it slide but I actually started a business with him related to jiu jitsu in Venezuela. And I advertised the fact he was a blackbelt prior to 2009.