How many distinct graphs does the oracle-bone script have once scribal variants are merged?
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Where it stands
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Why it matters
Published counts of distinct graphs run from 3,763 to about 4,500, while HUST-OBC lists 10,999 image classes, 9,411 of them unread, because scribal variants, miscuts and damaged forms have not been merged[1][2][3]. Dong Zuobin's criteria show that graph forms change by period and diviner group, so a merge has to be done within period before across it[4][5].