Previously, an inscription had been unearthed from this crypt. There are words of "Jinling Changgan Temple" on it. The inscription says that the crypt once buried Buddhist relics of Sakyamuni - "the real topknot bone" and sarira. According to Fang Guangchao, a Buddhist canon expert, "the real topknot bone" refers literally to the skull of Sakyamuni. It was said that 2500 years ago, after Sakyamuni Nirvana, his disciples picked up his skull, teeth, middle finger bone and 84,000 sariras from the ashes. In 1987, the unearthing of the four sariras in Famen Temple, Shaanxi Province shocked China and foreign countries. One of them was considered as the sarira of Buddha's middle finger bone. The record of "the real topknot bone" in the inscription of the crypt in Nanjing this time especially makes people expect. If there is really a Buddha topknot bone in the relic casket, then, is it the only Buddha topknot bone in the world, or just a part of the Buddha topknot bone?