Connected to the way you work
Bring signing, marking, and checking into your publishing or AI workflow. Use the API or a publishing integration to connect your tools and keep the signed record with each release.
See how the platform fitsThe content provenance platform
Put your name on your work.Mark what your AI creates.
Encypher brings digital signing, AI marking, and content checks into one platform. Add a record people can check to see who signed your content and whether it has changed.
Author of the C2PA text standard and task force co-chair.
From release to review
Mark, sign, check. Use the evidence.Create
Text, media, or an AI answer
Mark
Hidden mark
Travel
Shared with its record
Verify
Check retained credentials
C2PA Trust Listsour claim-signing Certificate Authority and Time Stamp Authority
77 / 70formats for signing / verification, across text and media
Freeanyone can check a signed file, no account
Why Encypher
A simple path from release to review.
Start with one output or published work. Check the result before you plan the rollout.
Clear evidence to share
Give readers, partners, and review teams a record they can check themselves. Show who signed the content, which terms they supplied, and whether the signed content has changed.
Open the public verifierTechnical evidence supports your compliance work. It does not decide legal duties, prove ownership, or guarantee compliance.
Other workflows: Official communications and Enterprise teams.
Try a signed text sample
Check it yourself.
Sign a line of text below, copy it, change a word, then run the check and watch what the proof says.
Live signed-text sampleOpen the full demo
1
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.
Build on the same record
One record. Three jobs.
Start with marking and signing. Add source-use reporting or leak tracing when the workflow calls for it. Coverage depends on the connected systems, available records, and supported formats.
01
Mark
Sign AI output, published work, and official files so anyone can verify who sent them and whether they changed.
Available now02Meter
Bring signed sources, reported usage, rights terms, and open questions into one shared report.
Early partner program03Trace
Give every recipient a distinct marked copy and identify the send record behind a leak.
Available nowDo not take our word for it
Read the records.
The official C2PA Conforming Products List records Encypher as a conformant generator product at assurance Level 1, with generation and validation coverage across 20 media types (conformance dated May 26, 2026). Encypher's claim-signing and timestamp authorities appear on the official C2PA Trust Lists.
- Official product record. Our generator product sits at assurance Level 1. Encypher signs 77 formats and verifies 70. The formal conformance record covers 20 media types. Product coverage and formal conformance are different measures.
- We run the Certificate Authority and the Time Stamp Authority. Encypher runs its own claim-signing Certificate Authority. It issues the certificates behind signed content, and our Time Stamp Authority records when the signing happened. Both appear on the official C2PA Trust Lists.
- A sample you can open. Open our public verifier, drop in a signed file, and read the result. No account, no sales call.
Content Credentials
Open standards. Anyone can check.
Start with one file or one output.
Put your name behind the next thing you ship.
Mark or sign one item, then check what a recipient can see. Need help with your output pipeline or publishing workflow? Talk to our team.
- Free public check, no account
- Text, media, PDF, and Office
- API and publishing integrations
- Start without a sales call
We wrote the text-provenance standard. Section A.7, published January 8, 2026.
Built on the C2PA open standard
Encypher authored the C2PA standard for unstructured text and co-chairs the Text Provenance Task Force alongside these member organizations. Logos indicate C2PA membership.
