Please post your instructor's lineage, ie who promoted him to black belt, and their instructor, and their instructor, and their instructor, including who promoted Mr. Barbosa Da Silva.

Also, it would be helpful if your instructor made a verified profile on here, and claimed you.

Further, did your instructor fly into a seminar to promote you, as the Interwebs claim that he moved to Sweden from Brazil, if he is that same gentlemen.

Otherwise, as I look at your profile, it is currently a picture, and a certificate with obscured promoting signature lines out of the frame or covered by your thumb, and nothing else.

Also, what Federations in Brazil are your instructor's registered with, as none of them appear to be registered with the IBJJF?

Hey William, thank you for your reply. Unfortunately, I don’t have that level of information. Here in Brazil, the IBJJF membership is quite expensive, and my academy is a small neighborhood gym. I train more as a hobby.

I do have my São Paulo federation card from when I was a white belt, if that helps in any way. Thank you for your attention.

My friend, I have no reason to doubt your word.
I see you have been verified,
I welcome you to the site,
And I wish you good training.