Now as a writer, I cannot exactly put in watermarks to my writing, so I am debating a few methods: Work into the first letters of the first sentences: “Never gonna give you up” or “Fuck ai using creations without explicit consent” The same but first word of the sentences, or paragraphs.

Work in one incredibly grammatically confusing sentence (e.g. five ‘that’s in a row). Invent a pseudo word that I use in all my books (e.g. ‘chyroform’ in the form of something frozen or ice like). Use a fairly common word in a way that has fallen well out of use (e.g. ‘bolt’ meaning to sift).