In 1831, after the death of Ryozo, the ancient document was passed on to Haesaka SACHIMATSU, a scholar of Japanese classical literature in Kyoto, and decipherment was done.
良蔵の死後の1831年（天保2年）に、この古文書は府内の国学者・幸松葉枝尺の手に渡り、解読が進められた。