Yes. I'm mostly checking if is a legitimate school. The problem with "fake" schools appears just after 2 or more years of commitment. Before that not much can be noticed. Is there any way to check if Shinzato has trained with Tokuda and Chibana. In Brazil we have a lot of problems with fake schools. In Chibana page inside Shinshukan website (https://shinshukan.com.br/site/choshin-chibana/ ) we can read the following Mestre Chibana teve mais de 5000 alunos e entre eles o Mestre Katsuya Miyahira que foi seu auxiliar e Mestre Yoshihide Shinzato (10º Dan), este considerado o mais importante Mestre fora de Okinawa, fundador da União Shorin-Ryu Karate-Do do Brasil e da International Union Shorin-Ryu Karate-Do Federation, entidade que é formada pelas mais importantes federações do estilo Shorin-Ryu do mundo todo. Freely translated by me: Master Chibana had more than 5000 students and among them Master Katsuya Miyahira that was your auxiliar and Master Yoshihide Shinzato (10 dan), the latter considered the most importante master outside Okinawa, founder of Brazilian Shorin-Ryu Karate-Do Union and International Union Shorin-Ryu Karate-Do federation, institution formed by the most important federations of Shorin-Ryu style around the world. I could not find any reference to this International Union Shorin-Ryu Karate-Do Federation, except from websites in portuguese, that could be only echoes of the original Shinshukan website by it's own students. I would go further the portuguese wikipedia article Chosin Chibana (https://pt.wikipedia.org/wiki/Choshin_Chibana) makes reference to Yoshihide Shinzato. While the most complete article in english (https://en.wikipedia.org/wiki/Ch%C5%8Dshin_Chibana), makes no such reference. It looks like the portuguese version was crafted only to endorse what is on brazilian websites. In the page about Yoshihide Shinzato (https://shinshukan.com.br/site/yoshihide-shinzato/), it list some titles, among them there are: 8th dan World Karate Federation, 9th dan Kobudo Shin-Shu-Kan, 10th dan Okinawa Shorin-Ryu Karate-Do, 10th dan Karate-Do Hanshi and Kobu-do Hanshi. The Shorin-Ryu wikipedia article (https://en.wikipedia.org/wiki/Sh%C5%8Drin-ry%C5%AB) do not list Shinshukan as a legitimate school. By any chance, any of those institutions provides a way to see all granted degrees, specialy the very high ones as 8th, 9th and 10th dan and Hanshi title? Is there any way to verify those informations? I had my share of problems with those kind of school. When reaching high degrees you start to notice the lack of consistency in techniques, also you become isolated, and, if for some reason, you need to change schools, your degree isn't recognized anywhere else. I have to slightly disagree with you on that. Martial arts has lost it's combative usability in modern days. It's mostly for health and tradition. For health I can pretty much run in a mill and that would be ok. By ignoring the historical side we are losing (roughly) 50% of what a martial art can offer.