Karemi bhante is not a work with a single known composition date. It is a short phrase used in Jain prayers (Pratikraman and Samayik) to bow to the teacher or Tirthankaras and to vow purification. Because it is a liturgical formula that has been part of Jain practice for many centuries, there is no recorded date of its composition. Both Digambar and Shwetambar traditions use it as part of their ritual framework, with minor variations in wording or context in some communities. You can read more here