The phrase "author certified" is correct and usable in written English.
It can be used to indicate that a work or document has been verified or approved by the author, often in contexts related to publishing or academic work.
Example: "The manuscript was submitted with an author certified stamp to ensure its authenticity."
Alternatives: "author approved" or "author verified".
She is an author, Certified Professional Coach, and transformational speaker who has been featured in the Chicago Tribune, Cosmopolitan Magazine, and will be a contributor to the Forbes AuthorVoice group blog on Forbes.com in 2018.
By Davis Truyen, MBA, Author, Certified Professional Coach Follow Davis Truyen on LinkedIn: https://www.linkedin.com/in/nguyentruyen.
The author certifies that no human subjects nor animals were involved in the present study.
Each author certifies that all investigations were conducted in conformity with ethical principles of research.
Each author certifies that he has no commercial associations (e.g., consultancies, stock ownership, equity interest, patent/licencing arrangements, etc).
The corresponding author certifies that there is no actual or potential conflict of interest in relation to this article.
The author certifies that he has no commercial associations (e.g., consultancies, stock ownership, equity interest, patent/licensing arrangements, etc).
Each author certifies that he has no commercial associations (e.g., consultancies, stock ownership, equity interest, patent/licensing arrangements) that might pose a conflict of interest in connection with the submitted article.
The author certifies that he has no commercial associations (such as consultancies, stock ownership, equity interest and patent/licensing arrangements) that might pose a conflict of interest in connection with the submitted article.
Each author certifies that he or she has no commercial associations (e.g., consultancies, stock ownership, equity interest, and patent/licensing arrangements) that might pose a conflict of interest in connection with the submitted article.
Each author certifies that he or she, or a member of his or her immediate family, has no funding or commercial associations (e.g. consultancies, stock ownership, equity interest, patent/licensing arrangements, etc).
