no it doesnt, you can find the writers for the databook, its caramel mama a production company who work with shueisha ,supervised by the author to create guide books , they have kishi's approval but kishimoto doesnt write them himself.
his staff didnt help write it either
approved sure, in the same every other secondary guide thats not written by him is approved, its perfectly fine to use as support but the idea that its on the same level as kishi's main body of work is nonsense.
he neither wrote it nor did any of his staff, the staff at caramel mama wrote the databooks with supervision of shueisha, similar to the daizenshuu
I can do you one better than a link a website, ill tell you exactly who wrote the databooks by listing their names and surnames, the website is also run by caramal mama btw,
which is Jump's push for a digital style databook system, you can even cross reference some of the writers between the databook and the websites database and birthday columns.
heres a list of every writer that has worked on both the databooks and fanbooks as well the last naruto the movie databook and the recent boruto database.
- Akira Uchida
- Genki Fujishita
- Ichiro Watanabe
- Kazuki Yano
- Kiyotaka Yasuhiko
- Narumi Ohmuro
- Ryo Ito
- Shintaro Kataoka
- Takayuki Watanabe
- Teppei Odagiri
- Tetsuhiro Koyou
- Yasuhiro Sasamori
- Yuichi Ohba