Script" texts was allegedly rediscovered by the scholar Mei Ze during the 4th century, and presented to the imperial court of the Eastern Jin. His version consisted of the 31 Modern Script texts (in 33 sections, 篇) and an additional 18 "Old Script" texts (in 25 sections), with a preface and commentary purportedly written by Kong Anguo. This was presented as Guwen Shangshu 古文尚書, and was widely accepted. It was the basis of the Shàngshū zhèngyì ( "Correct interpretation of the Documents") published in 653 and made the official interpretation of the Documents by imperial decree. The oldest extant copy of the text, included in the Kaicheng Stone Classics (833–837), contains all of these chapters. Since the Song dynasty, starting from Wú Yù (), many doubts had been expressed concerning the provenance of the allegedly rediscovered "Old Script" texts in Mei Ze's edition. In the 16th century, Méi Zhuó () published a detailed argument that these chapters, as well as the preface and commentary, were forged in the 3rd century AD using material from other historical sources such as the Zuo Commentary and the Records of the Grand Historian. Mei identified the sources from which the forger had cut and pasted text, and even suggested Huangfu Mi as a probable culprit. In the 17th century, Yan Ruoqu's unpublished but widely distributed manuscript entitled Evidential analysis of the Old Script Documents ( Shàngshū gǔwén shūzhèng) convinced most scholars that the rediscovered Old Script texts were fabricated (wei 偽) in the 3rd or 4th centuries. Modern discoveries New light has been shed on the Book of Documents by the recovery between 1993 and 2008 of caches of texts written on bamboo slips from tombs of the state of Chu in Jingmen, Hubei. These texts are believed to date from the late Warring States period, around 300 BC, and thus predate the burning of the books during the Qin dynasty. The Guodian Chu Slips and the Shanghai Museum corpus include quotations of previously unknown passages of the work. The Tsinghua Bamboo Slips includes a version of the transmitted text "Golden Coffer", with minor textual differences, as well as several documents in the same style that are not included in the received text. The collection also includes two documents that the editors considered to be versions of the Old Script texts "Common Possession of Pure Virtue" and "Command to Fu Yue" 伏說之命. Other authors