 Although there were earlier works of bibliography with respect to Buddhist texts at the time, Sengyou introduced important innovations in how the texts were arranged, including a hierarchy of authenticity.Not only were Buddhist texts continually trickling in along the Silk Road, but the Chinese had begun to pass of local productions as authentic Indian sutras.Sengyou proposed criteria for assessing the authenticity of Buddhist sutras at a time when many fake or apocryphal texts were in circulation.