According to the rule of the tai sui of the first year, the Jinshin year was the first year of Emperor Kobun even if it was not the first year of Emperor Tenmu, and the tai sui article should have been placed in the Jinshin year in "Chronicles of Japan" before revision.
元年太歳のルールに従えば、壬申年は天武天皇の元年でなくとも弘文天皇の元年なのだから、改定前の『書紀』の壬申年にも太歳記事があったはずである。