“Paper Trail” Tools Do Not Prove Authorship Without AI
New services document the writing process so authors can verify the origin of a text. However, they do not establish whether it was created without AI assistance.

Workings, Blindproof, Wintertext, Human Ink, and ObraVera have released tools for documenting authorship. They preserve the work history, and some encrypt the text or record typing rhythms, creating a record of the material’s origin.
Interest in such services has grown following the scandal surrounding the novel *Shy Girl*. Hachette Book Group canceled its upcoming U.S. release and halted publication in the U.K., where the book had already been published. According to Pangram’s assessment, approximately 78% of the text was AI-generated. Author Mia Ballard denied this, claiming that changes to a previously self-published version were made by an editor.
Mary Rasenberger, CEO of the Authors Guild, described the tools as a form of insurance but noted that the organization does not endorse any single one. She also warned about false positives: the Guild is aware of cases where Pangram misclassified human-written texts as AI-generated.
Max Spero, co-founder and CEO of Pangram, acknowledged that generated text can be retyped manually or entered using autocorrect. Additionally, applications may fail to capture work across multiple files, draft transfers, or voice notes.
ObraVera creates cryptographic “fingerprints” of texts and audio recordings. These can confirm when and by whom a material was registered if it later appears elsewhere. However, the service does not determine whether AI was used—this must be declared by the author.
Publishing industry expert Jane Friedman believes publishers and agents are unlikely to agree on a universal verification standard. In her view, they will be reluctant to spend extra money and time, and certificates from different applications may not be mutually recognized.





