Who founded the Tibetan Yuan in the eight characters? When did it appear?

There are four people in the annotation of the biography of Luozi III, with Wang, Li Wei and Shi Tanying as the first note and the last note. The first three people did not say that the earthly branch had Tibetan yuan, but thought that the earthly branch was human yuan. These three people have been using the words in the note: to do this; The difference between supporting human life and taking sound as the body. As far as Xu Ziping is concerned, he has changed his tune to Tibetan dollars. However, it is not clear that Xu Ziping's comments are inconsistent.