Three approaches. One proves authorship.
Process Evidence
vs. Watermarking vs. AI Detection
Watermarks prove someone signed the text. AI detectors guess what generated it. Only process evidence captures how it was written.
Feature-by-Feature Comparison
| Dimension | WritersLogicProcess Evidence | Watermarkinge.g., Encypher | AI Detectione.g., GPTZero |
|---|---|---|---|
| Provenance | |||
| What it provesThe fundamental question each approach answers | "I wrote this" — the author's own attested process | Someone signed it (ownership claim) | Statistical guess (probability score) |
| When evidence is createdAt what point in the writing lifecycle proof is generated | During writing | After writing | After publication |
| Can AI-generated text pass?Whether someone can sign AI output and claim authorship | No | Yes | Partial |
| Robustness | |||
| Survives paraphrasingWhether proof remains intact when text is reworded | Yes | No | N/A |
| Adversary-resistantHow difficult it is for a motivated adversary to defeat | Locked to your device hardware | Invisible characters (easily stripped) | Model-dependent (20%+ error rate) |
| Tamper-evidentWhether altering evidence invalidates the proof chain | Yes | Partial | No |
| Legal & Standards | |||
| Legal evidentiary weightUsefulness as evidence in legal or disciplinary proceedings | Concrete evidence of the writing process | Ownership claim only | Probabilistic opinion |
| Standards trackBacked by recognized standards bodies | IETF draft, plus 6 algorithms registered on the C2PA Soft Binding Algorithm List | C2PA Section A.7, no registered algorithm | None |
| Practical | |||
| Privacy preservingWhether actual content or keystrokes are recorded | Yes | Yes | No |
| Works offlineCan generate proof without internet connection | Yes | No | No |
| Open sourceLicense and availability of source code | AGPL 3.0 open core + commercial licensing | AGPL 3.0 (viral copyleft) | Proprietary |
| Records how you writeCaptures your editing rhythm, revision patterns, and pause timing | Yes | No | No |
| Cost to sign and verify at scaleWhat publishing and checking provenance records costs | Free up to 10,000/mo — runs on git, so the cap is abuse prevention, not cost | Free trial caps at 1,000 items/month, then $99+/mo | N/A |
The fundamental difference
Watermarking proves someone claimed the text. AI detection guesses what generated it. Neither captures the act of writing itself.
We include invisible watermarking too — free, unmetered, no account required. It's a binding layer: cheap to run, which is why it's cheap to strip. We don't sell it as your only shield. Process evidence is the layer you reach for when stripping actually matters.
WritersProof records how you write: your rhythm, your pauses, how you revise and edit. This evidence is locked to your device hardware and sealed so that changing any part invalidates the whole record. Anyone can verify it for free.
Someone can strip a watermark with a few lines of code. To fake process evidence, they would need to sit down and type every word of the document with realistic human editing patterns while defeating hardware-level security. That is a fundamentally harder problem.
Six of the entries on the C2PA Soft Binding Algorithm List are ours
A soft binding is what finds a document’s C2PA manifest again after the manifest itself is gone — after the text is copied out of a file, reformatted, quoted in part, or reworded. Text needs a family of them, because no single technique survives every edit. WritersLogic wrote and registered six, more text soft bindings than any other organization on the list, and a manifest can carry several at once.
com.writerslogic.zwc-watermark.1watermarkA routing tag carried as invisible characters. Survives copy-paste.
com.writerslogic.zwc-watermark.2watermarkErasure-coded revision of the above. Recovers from a partial strip.
com.writerslogic.text-fingerprint.1fingerprintDerived from the words themselves. Survives reformatting and manifest stripping.
com.writerslogic.text-minhash.1fingerprintSet-overlap matching. Resolves a quoted excerpt back to its source document.
com.writerslogic.text-structure.1fingerprintFingerprints sentence rhythm and structure. Survives synonym-level paraphrase.
com.writerslogic.text-watermark-semantic.1watermarkSignal held in embedding space. Survives paraphrase, translation, and re-encoding.
Every entry is public and independently checkable in the C2PA Soft Binding Algorithm List. The watermarking product compared above has no entry on it, and AI detectors have none. See how the six compose inside a single manifest.
Ready to prove authorship, not just claim it?
See how WritersProof captures process evidence for writers, publishers, and institutions.