authorship
noun [ U ] uk/ˈɔː.θə.ʃɪp/ us/ˈɑː.θɚ.ʃɪp/
（书、诗、文章等的）作者（身分）；写作活动
the state or fact of being the person who wrote a particular book, article, play, etc.
The article is of unknown authorship (= it is not known who wrote it). 这篇文章的作者不详。
She is being attacked for her authorship of the policy document. 她因起草这一政策性文件而受到抨击。