The turning point of the imperial exams was not opening them, but covering the nameAnonymous Marking in the Song Examinations · 992–1015, Kaifeng
992–1015Northern Song · KaifengPing-ti Ho 1962The Sui and Tang already held examinations, but Tang papers carried the candidate's name, and the pre-exam custom of xingjuan flourished: candidates sent their poems to powerful patrons to be recommended to the chief examiner, who also consulted circulating reputation lists when fixing the ranking. Formally open to all; in practice a negotiation among insiders, with a typical session admitting only twenty or thirty men.
In 992 the court official Chen Jing petitioned that palace examination papers have the head sealed, hiding name and native place; under Emperor Zhenzong the practice spread to the prefectural and departmental exams. But sealing could not defeat handwriting recognition, so in 1015 a Copying Bureau was established: clerks transcribed every original in vermilion ink, and examiners saw only the copy, cutting the last identifying thread. Locked compounds and separate sittings for examiners' relatives completed the apparatus. The scale changed with it: the two Song dynasties admitted over a hundred thousand jinshi, dozens of times the Tang total. Ping-ti Ho's The Ladder of Success in Imperial China (1962) found that roughly a third of Ming and Qing degree-holders came from families with no degree in three generations.
Without sealing and recopying, the examinations would likely have stayed in their Tang form: a supplementary channel open to the well-born rather than the trunk of civil recruitment. The dispute is over how much mobility followed. Ho read genuine upward movement; Robert Hymes, in Statesmen and Gentlemen (1986), used Fuzhou local records to object that elites held position through marriage alliances and charitable estates, so "no degree in three generations" means only that nobody passed, not that the family was poor. Benjamin Elman (2000) added that the classical training a candidate needed was itself a hidden gate shutting out illiterate households. Qian Mu offers a further reminder: the system was also a device that left educated men exactly one career.
Anonymised CV screening and double-blind review: equally effective at removing the reviewer's partiality, equally powerless against the disparity in resources that existed before anything was submitted.