What Authorship does
Authorship tracks text provenance as a document is written: typed by the user, generated by AI, pasted from elsewhere, edited by Grammarly. It color-codes the result, can replay the document's construction, and produces a shareable report with percentage breakdowns. It works in Google Docs through Grammarly's browser extension and in Microsoft Word through the desktop app, and it is included in Grammarly's free tier. For an individual student who wants to write defensively in the false-positive era, it is a genuinely good idea, and we say that without irony.
The activation problem
Everything above depends on a chain of student-side choices. The student must have Grammarly installed, on the device they actually write on. They must activate Authorship tracking (the fingerprint icon) before writing, not after. They must write the whole document in a covered surface. And at the end, they must choose to generate and share the report. Five links, every one owned by the student.
Now run that chain across a class of thirty. The diligent students, the ones who were never your question, will manage it. The students you actually wondered about will have a missing report and a reasonable shrug: never installed it, wrote it on my phone, forgot to turn it on. A voluntary evidence system produces evidence precisely from the people who don't need to produce it. And a missing report can't be treated as guilt, because the system is voluntary. You are back where you started, only now with paperwork.
Authorship answers "how can a student prove they wrote it?" Manupropria answers "how can a teacher know, for every student, without asking anyone to remember anything?" The second question is the one a classroom actually has.
Assignment-scoped beats student-scoped
Manupropria inverts the ownership. The teacher creates the assignment; students open the link and write in the canvas; the record creates itself. No installs, no activation step, no per-device coverage gaps, no report the student has to remember to send. Coverage is one hundred percent of submissions by construction, which is the property that makes the record usable as classroom evidence rather than as an individual's defense exhibit. The teacher also gets controls a student-side tool structurally can't offer: a paste policy per assignment, tamper detection on the capture itself, and a class-level view of every submission's process at a glance.
Privacy trade-offs
Grammarly's stated approach is reasonable: it says it does not store general browsing data, and that pasted-text data is briefly stored to categorize its source and then anonymized. But note the shape: Authorship rides inside an extension that, to function, sits across the student's writing surfaces generally.
Manupropria's scope is narrower by architecture: capture exists only inside the assignment canvas, during the assignment. We never see the student's other tabs, documents, or devices because there is nothing installed on them. Final essay text is encrypted at the application layer, keystroke content for ordinary typing is not retained as literal characters, and student writing is never used to train AI. For minors especially, "scoped to the assignment" is an easier privacy story for a teacher to tell a parent than "extension across the browser," whatever each vendor's policies say.
The decision in two sentences
If you are a student protecting yourself, install Authorship today; it is free and it works. If you are a teacher who needs the proof to exist for every submission, on every assignment, without depending on thirty teenagers' settings, that is an assignment-scoped problem, and it is the one Manupropria was built for.