In Jan Kinchi Sutra (a chaityavandan sutra), there is no fixed number given for Jin paratimajis. The text says to bow to “all the existing idols of Jineshvar Bhagawan present anywhere in the upper, middle, or lower parts of the universe,” i.e., saluting all jina-pratimas in the three worlds. So the bowing count is not a set number; it encompasses all Jina images across the three realms. ( jainknowledge.com)

You can read more about Javanti Cheiam Sutra (which includes Jan Kinchi) here