Well for more information on the specific linages of the
bujinkan ryu-ha I've previded a link. In the final pages of Togakure Ryu Ninpo Taijutsu written by Hatsumi in 1983 as a Bujinkan instructors handbook (Hatsumi's first book BTW) he says that writing any densho (written documents) was forbidden and that by writing that book it was like going against the former masters of those schools. To this one must ask which schools, to which there is no answer. None of the "ninjutsu" schools have a densho or at least the name sake of Togakure Ryu does not. Since Hatsumi has never proven his ninjutsu lineages we simply do not know, however the 6 samurai schools are proven to a certain degree for the most part.
As for Bujinkan Budo Taijutsu being ninjutsu/ninpo? Why is that Hatsumi changed the name from Togakure Ryu Ninpo/ninjutsu to Togakure Ryu Ninpo Taijutsu to Bujinkan Ninpo Taijutsu to Bujinkan Budo Taijutsu? To this I'll repeat what I was told when I was in the Bujinkan. Hatsumi used the term Togakure Ryu Ninpo because Togakure Ryu was the oldest of the nine Ryu-ha. In its modern format Hatsumi was teaching essentually self-defense and therefore the largest focus was on hand-to-hand (taijutsu) so that the school became known as Ninpo Taijutsu. Eventually Hatsumi's smaller dojo was expanded by the ninja-boom and several Western Instructors at the forfront of this was Hayes and Bussey. This was the creation of the Bujinkan trademark name. And then in the later nineties and earily 2000s the term budo taijutsu was used to seperate the art from the "ninja-name," but still contain the techniques of ninpo.
Personally all the name changing confusses me and there are still Bujinkan instructors who swear they teach ninjutsu event though Hatsumi claims to have taught only a handful of Westerns true ninjutsu, Hayes, Van Donk, Nova, Bussey & select group of others.
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My Personal Mantra:
Where I walk, I walk alone...
Given unto the winds, I am free...
And yet a slave to my own soul...
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