Can't find any evidence on Dennis Davidson's profile, besides evidence that IBJJF might have been presented with some evidence (that we ourselves are not shown by IBJJF or him). If you help him out or at least link to where he can be seen and confirmed getting his original BB and when, that would make verifications along his lineage and down to you so much easier.

https://www.beltchecker.c[...]p?id=10480

https://attrockledge.com/[...];-Davidson
Dennis Davidson's instructor profile on his academy's website, stating he is a black belt under Daniel Moraes

https://www.elitesports.c[...]t-champion
Article on Daniel Moraes mentioning Dennis Davidson as one of his black belt students

His own claim plus a blog post (not from Daniel Moraes and unclear who even wrote it) isn't first or even second hand confirmation from Daniel.

I wrote some suggestions in this thread https://www.beltchecker.c[...]amp;page=2 what constitutes stronger evidence.