Authorship (noun)

The state or quality of being the author of a book, play, or other written work.

Origin:

From author, meaning 'a person who writes a book or other written work'.

Examples:

1. The authorship of the novel was hotly debated, with several people claiming to have written it.
2. Her authorship of the blog was well-known, as she wrote under her own name.
3. The authorship of the poem was finally established after years of research and investigation.
4. His authorship of the text was in question, as there was no clear evidence to support his claim.
5. The authorship of the play was attributed to Shakespeare, but some scholars have argued for alternative authors.