On February 26, 2003, mokkan (a narrow strip of wood on which an official message is written) which showed guchureki (Japanese Lunisolar calendar) based on Genkareki was discovered in Ishigami site in Asuka-mura, Nara Prefecture, which is considered to have been a guest house in the Asuka Period.
2003年2月26日、飛鳥時代の迎賓館跡とされる奈良県明日香村の石神遺跡から、元嘉暦に基づく具注暦を記した木簡が発見された。