Digital watermark
A simple verification label (QR/link) you can attach to deliverables, so anyone can check integrity.
When people hear “digital watermark,” they often think about an invisible mark hidden inside an image.
That’s not what we mean here.
In WrittenInStone, the “watermark” is a verification label: a small, visible badge or QR that points to a
proof record (fingerprint + timestamp in an immutable registry).
What the verification label does
- It travels with the asset. Add it to a PDF cover page, a deliverable pack, an email footer, or a landing page.
- It reduces friction. Instead of “trust me,” the recipient scans a QR or opens a link.
- It makes edits visible. If the file changes after handoff, verification returns a mismatch.
How it works
- Stamp — Create a proof record for your file (fingerprint/hash + timestamp).
- Get a link / QR — The system generates a verification page for that proof record.
- Attach the label — Place the QR or link anywhere recipients will see it.
- Verify anytime — Anyone can check a copy of the file against the proof record.
What a recipient sees
The verification page can show:
- Match / mismatch result for the uploaded file.
- Timestamp and proof record ID.
- Optional context you choose (e.g., project label or delivery note).
Where to use it
- Client deliveries: attach the label to final exports and handoff packages.
- Press & media kits: let editors verify the version you published.
- Reports & statements: add a QR to PDFs so reviewers can confirm the file wasn’t altered.
- Portfolio assets: publish a verification link next to your work.
What it proves (and what it doesn’t)
- Proves: integrity (whether the file matches the stamped version) and the timestamped existence of that fingerprint.
- Does not automatically prove: legal authorship/ownership by itself.
Privacy note
The label points to a proof record. By default, verification can work without storing the file content.
Keep any public metadata minimal and non-sensitive.
Verify a file
Create a proof record
