Certificate of authenticity
Catherine Marshall
Writer
Catherine Marshall is certified by ProudlyHuman™ as a writer with a verified human‑authorship process.
- Certification number
- 1000-0000-0491
- Certification date
- 8 May 2026
- Certification type
- Writing
- Certified scope
- Certified writer work
About the certified work
Catherine Marshall’s work as a writer has been verified and is ProudlyHuman™ certified. After reviewing her application, completing an interview regarding her process and adherence to de minimis use of AI, and completing an audit of her previous works, we’ve verified her process and personal commitment to authoring human‑written works.
How this certification was verified
Proudly Human reviewed the applicant's creative process, supporting materials, representative prior work, and disclosed AI use. The certification confirms that the certified creator or organization has represented and demonstrated a process consistent with Proudly Human's standards for human‑created work.
What this certification covers
This certification applies to Catherine Marshall’s eligible human‑authored writing within the certified scope. Eligible future work may use the ProudlyHuman™ certification mark where it remains human‑created and compliant with ProudlyHuman™ standards. Certified work may be subject to audit to ensure continued compliance.
This certification confirms the work was reviewed and verified as human‑created by the Proudly Human team. If you believe this certification is being misused, .