As one of the most strict beltcheckers, I still don't need the whole lineage to be on Beltchecker, cinfirming their promotions (everyone isn't even alive anymore). There are other pieces of evidence that are also very strong. Examples (in my opinion):

*Video or picture that is obviously from a promotion (e.g. promoting instructor tying on the belt, holding it, pointing to it etc, so not only posing with the instructor with a certain belt on).

*Screenshot of and link to social media post about the promotion which has been commented on, liked by etc. the promoting instructor.

Photos of paper diplomas are quite weak, as there has been an occurance of forgery on Beltchecker. Together with pictures over the years with the same instructor and perhaps with good pictures from previous promotinos, a diploma could still do (basically, you'd have a lot to lose forging a diploma from an instructor you've had years of contact with, which makes the diploma more believable).

Reference to IBJJF:s belt registry doesn't do anything to prove your lineage, as they hide all such information. They have also registered supposed black belts who have never even met the BB with 2:nd degree or higher signing for them, which they actually seem to be OK with as long as it is Brazilians doing it. Which makes IBJJF registration quite weak as evidence, although the instructor signed application (if you scanned that) in itself is stronger than the registration which you pay hundreds of dollars for.

Oh, and the evidence should of course be connected to an instructor which actually had 2:nd degree BB or higher at the time of a BB promotion (only BB required to promote to brown though).

Personally, I'd like to see the kind of strong evidence described above (or similarly strong evidence) all along the lineage, up to someone who I already know of or should know of (instant hit on BJJheroes or similar website). Megaton in your case. So if you yourself or your instructor can provide good evidence for him promoting your instructor, it should then be enough that he confirms your promotion.

Edit: Through Google, I found some quite old posts, IBJJF competition results etc. connecting Harold to Megaton, so the way I verify, I might actually be happy with verifying you based on his confirmation but still wanting to see Harold himself adding good evidence on his profile before verifying him. Basically, I think the person with the profile should put in the work and make sure enough evidence is already on the profile.

Edit 2: You have a not totally obvious promotion picture, but with a social media post liked by Harold, which makes it strong evidence if you add it to your profile under promotion history (screenshot like the attached plus link). Which can of course be removed once Harold confirms through Beltchecker. https://www.facebook.com/[...]%2CO%2CP-R

Screenshot as evidence (together with the link above)

Hello,
Your instructor does not need to be registered on here but it is a bonus if he is.
Photos of promotions, certificates, ibjjf membership card or ibjjf certificate and social media suffice for me to vote.

I do not understand how Gracie Humaita is listed as your current team when we do not have your academy listed as part of the team.
Your lineage is definitely Gracie Humaita because of Megaton but satellite academies are not Humaita team members.

http://www.graciehumaita.[...]locations/

Master Megaton added me to his club rooster about 2017? And until today, I was listed as a member of Gracie Humaita Phoenix.

Here is the video of my promotion under Prof. Harold Utterback 4/8/2023

https://www.facebook.com/[...]l/?app=fbl

also here was my result at the 2019 Portland open, which shows me representing GHP
superheavy master 6 purple belt
https://www.ibjjfdb.com/C[...]licResults

https://www.facebook.com/[...]0656106419
Hanging with Prof. Megaton July 2019 IBJJF Portland