Although "Kozan Hokan" and "Hokan Henbunrui" were not known to the general public, but were known to specialists and some oppose considering them as chokodaishi bunsho (super-ancient history documents).
しかし『香山宝巻』『宝巻変文類』は世間的には有名ではなかったが専門家の世界ではもとから知られたものであり、超古代史文書に入れるのは異論もある。