However, the entire content of the work is known because it had already been printed and published in volumes 6 to 8 of "Zoku Kokushi Taikei" (Supplementary Compendium of Japanese History) compiled by Ukichi TAGUCHI, and manuscripts are kept by the Cabinet Library and Historiographical Institute at the University of Tokyo.
しかし、それ以前に、田口卯吉編の続国史大系の第6～8に収録刊行され、あるいは内閣文庫及び東京大学史料編纂所に写本が残されているため、その全容は明らかとなっている。