For creators

The “Protected by HALLMARK.AI” badge

A visible watermark says “don't steal this” and gets cropped off. This badge does something different: it tells anyone looking at your portfolio, profile, or client page that the work is invisibly marked and that the mark is checkable by them, not just by you. It is free, it works whether or not you pay us anything, and you can put it anywhere HTML or Markdown renders.

Two styles

Swap -dark for -light in any snippet below if your background is light. Both are SVG, so they stay sharp at any size.

1. Generic badge

For a portfolio footer, an about page, or a profile bio. Links to our homepage.

<a href="https://hallmarkai.org/?ref=badge" target="_blank" rel="noopener">
  <img src="https://hallmarkai.org/badge/hallmark-badge-dark.svg"
       alt="Protected by HALLMARK.AI" width="208" height="40">
</a>

2. Verified badge (links to your certificate)

Replace YOUR_CERT_ID with the certificate ID from any file you watermarked. The badge then links to that certificate's public verification page — anyone can confirm the timestamp and file hash themselves. This is the version worth using on a page about a specific piece of work.

<a href="https://hallmarkai.org/v/YOUR_CERT_ID" target="_blank" rel="noopener">
  <img src="https://hallmarkai.org/badge/hallmark-badge-dark.svg"
       alt="Protected by HALLMARK.AI — verify this certificate" width="208" height="40">
</a>

3. Markdown (README, Substack, docs)

Same badge, Markdown syntax.

[![Protected by HALLMARK.AI](https://hallmarkai.org/badge/hallmark-badge-dark.svg)](https://hallmarkai.org/?ref=badge)

The honest small print

The badge is a claim, not a cryptographic proof in itself. Anyone can copy an image. What makes it meaningful is the link: the certificate page shows a timestamp and file hash that we recorded, and the checker reads the mark out of the file itself.
Certificate pages are deliberately kept out of search engines — they carry the owner's email, and we are not putting that in Google.
Displaying the badge earns you nothing from us and costs nothing. There is no affiliate scheme and no requirement to use it.
We publish what the watermark does and does not survive, including the cases where it fails. Please don't claim more for it than we do.

Don't have a mark yet? Watermarking is free — start here, then come back for your certificate ID. Curious how the mark holds up first? The measured numbers are public.