I found that site too, but it just says "TBD" (to be disclosed) on who promoted Kadu Sousa to BB and no evidence is anywhere to be found showing Kadu being promoted to BB and when. I have a lead of someone who might have promoted him, but would really recommend you try to find that and gather evidence yourselves. You can otherwise still use Beltchecker to document your journey simply by removing e.g. all blue belt info and you get an unvoteable profile, which might be advantegous when there e.g. is no real lineage present. But if you are willing to put in the work, I actually think there might be evidence to be gathered here.

I'm not disputing the rank of anyone in that lineage, just diving down the rabbit hole. If the promotion of Sousa can't be confirmed, that also removes everyone above him from the lineage. With the huge growth of BJJ around the world the last 30 years I think we are going to see more and more incomplete lineages because the information simply isn't there. The last 30 years have also seen the rise of the internet and we've all gotten used to having information readily available at our fingertips. We have to remember that if nothing is put on the internet we will not find it there, and that is likely the case for a lot of early practitioners that were not deeply involved in the BJJ scene beyond just training. How many people are out there that are/were legit black belts that never had an online presence and basically no longer exist in the BJJ world other than through the memories of others? At some point we as a community are going to have to accept these discrepancies and rely on performance more than lineage to verify rank.

I'm not disputing the rank of anyone in that lineage, just diving down the rabbit hole. If the promotion of Sousa can't be confirmed, that also removes everyone above him from the lineage. With the huge growth of BJJ around the world the last 30 years I think we are going to see more and more incomplete lineages because the information simply isn't there. The last 30 years have also seen the rise of the internet and we've all gotten used to having information readily available at our fingertips. We have to remember that if nothing is put on the internet we will not find it there, and that is likely the case for a lot of early practitioners that were not deeply involved in the BJJ scene beyond just training. How many people are out there that are/were legit black belts that never had an online presence and basically no longer exist in the BJJ world other than through the memories of others? At some point we as a community are going to have to accept these discrepancies and rely on performance more than lineage to verify rank.

Flavio Behring even went full circle to wearing a white belt again (but with a red bar) after 70 years of Jiu Jitsu to show he is an eternal apprentice: https://youtu.be/3IsMzldd[...]oOgzro-YXp

Osu Robert-San, Grande Mestre Flavio Behring is a legend, a true Budōka and a gentleman. His knowledge is amazing! Big Osu from the sunny city of Blankenberge at the Belgian coast:)

I found that one very interesting: https://www.youtube.com/w[...]FukiYYdTS0

This was a good video and helped me make sense of some things I’m going through.