Prove Your Content Is Yours.
Everywhere It Goes. Every Deal It Touches.
Invisible, cryptographic proof in everything you publish, verifiable by anyone, anywhere, at no cost. Signing is free; verification is paid for by the companies that license your content.
Authors of C2PA Section A.7 (Text Provenance)
Mark it
Invisible proof embedded
It travels
Copied · scraped · syndicated
Verify it
Anyone, anywhere: free
Own it
Origin + rights proven
What you get
Three steps from hitting publish to holding proof. No new workflow, and your readers see nothing but your work.
Sign what you publish
Automatic, free, and invisible: connect the WordPress plugin once and every article carries cryptographic proof of ownership from the moment you hit publish.
Get the WordPress pluginYour proof travels with your content
Copied, syndicated, quoted, or scraped into an AI training set, the proof stays inside the text itself everywhere your work goes.
See the badge readers can clickSee who verifies it and build your case
Your dashboard shows every verification, readers see a badge proving the work is real, and each signed article builds the ownership evidence that supports licensing deals as AI adoption grows.
Start freeSee it for yourself.
Paste any text and watch it get an invisible signature, identical to readers, verifiable forever. To see it on live AI output, open Provenance Chat.
Paste your content
Sample article pre-filled. Edit it or paste your own.
Free to try
Paste your text and go. No account, no setup.
Invisible to readers
The mark is hidden inside the text. Anyone reading it sees exactly what you wrote, nothing different.
Anyone can check it
It uses an open standard Encypher helped create, so anyone can confirm where the text came from.
Free Chrome extension
Take verification with you.
The same check you just ran, on every page you visit: competitor sites, aggregators, social platforms, even AI output. Cryptographic proof, not statistical guessing.
- Verifies any C2PA-signed text or image as you browse
- Flags tampered content since signing
- No account required. Free forever for verification
Pick the problem in front of you
Four products, one cryptographic engine. Anything you sign with one of them verifies anywhere, free.
Encypher Trace
Forensic leak tracing & insider-risk attribution.
Trace a leaked fragment back to the exact recipient, session, and timestamp, even after copy-paste or print.
For CISOs & security teams
Find who leaked a documentEncypher Seal
Tamper-evident document integrity & chain-of-custody.
An independent cryptographic seal: audit-ready evidence that a document is unaltered and provenance-bearing.
For legal, compliance & healthcare
Prove a file is untouchedEncypher Mark
AI-output provenance + analytics API.
Sign AI outputs at generation, scan inputs for provenance, and get analytics across both. Built for EU AI Act Art. 50.
For AI product & engineering teams
Show what AI madeEncypher Meter
Independent usage meter for content↔AI licensing.
The neutral meter that makes content licensing granular, auditable, and enforceable. The meter both sides can audit.
For rights-holders & AI licensees
Measure AI use of my contentEncypher Platform / API
One sign · verify · analyze engine under all four, also available white-label and via OEM.
We didn't adopt the text-provenance standard. We wrote it.
Built on the C2PA open standard
Encypher authored Section A.7, the text-provenance section of the C2PA specification, and co-chairs the Text Provenance Task Force alongside these member organizations. Logos indicate C2PA membership.
How Encypher compares
Front-door tools protect access to your page; Encypher's proof travels inside the content itself, wherever it goes.
| Capability | Front-Door Solutions | Encypher |
|---|---|---|
| Protects content on your site | ||
| Protects copied content | ||
| Protects through syndication | ||
| Persists in training databases | ||
| Cryptographic proof of ownership | ||
| Embeds machine-readable terms | Per-page | Per-sentence |
Go deeper: how the cryptographic watermarking works or read the API docs.
One layer everyone else is missing
Access control and marketplaces only work when AI cooperates. Provenance proves origin on its own.
Access control
Crawl gates, paywalls, licensing signals
Works only if AI cooperates.
Provenance and verification: Encypher
Cryptographic marks embedded in the content itself
Cryptographic proof that travels with the content. Works unilaterally.
Attribution and marketplaces
Answer-engine attribution, licensing platforms
Depends on self-reported usage.
Build Proof of Ownership Before You Need It.
Signing is free; verification is paid for by the companies that license your content. Every article you sign today is cryptographic evidence tomorrow.
Developers: build with our open-source c2pa-text library
View on GitHub