The Encypher platform

Turn content provenance into evidence you can act on.

Sign content, connect source use to a shared report, and link recovered copies to the original send. One platform supports trust, licensing, compliance, and leak response.

Start signing free Verify a file free

file and media formats signed and verified

400+

C2PA member organizations

a free public check for anyone, no account

C2PA conformant generator product. CA + TSA on the Trust Lists.

Enterprise needs?

One platform, three outcomes

Mark establishes the record. Meter makes it usable. Trace follows each shared copy.

Start with the problem in front of you. Each product creates evidence the next workflow can use.

Available now

Encypher Mark

Sign AI output, published work, and official files. Every recipient can check who signed the content and whether it changed.

Explore Mark

Early partner program

Encypher Meter

Connect signed sources, reported answer events, rights terms, and open questions in one report both sides can review.

Explore Meter

Available now

Encypher Trace

Give each copy you send a distinct hidden mark. When a copy comes back to you, map it to the send it came from.

Explore Trace

One shared evidence chain

A publisher signs a story with Mark. Meter connects that signed source to an AI answer and its reported use. Trace identifies the marked recipient copy if protected material appears where it should not.

What the platform includes

What one integration gives you

Built on C2PA with provenance embedding across 77 file and media formats.

1
Signing
C2PA manifests for articles, images, audio, video, PDFs, fonts, and live streams
2
Embedding
C2PA manifests across 77 file and media formats, plus highly efficient text watermarking
3
Verification
Free public API, tamper checks, quote checks, and full record readout
4
Evidence and audit
Attribution analytics, evidence packs your lawyers can export, and audit logs that show tampering
5
Rights
Per-segment licensing, a rights API, and publisher profiles
6
Distribution
WordPress, Prebid ad-tech, CDN edge, REST API, CLI, browser extension

For production review

Check how we integrate, run the service, and handle data

Use the public material below for technical diligence. Volume limits, support terms, regional processing, and service levels belong in a scoped pilot and contract. This page does not commit to them.

API referenceSee how sign-in works, what each call sends back, and where the free public check lives.Service statusCheck current component health and the incident record before you test.Security documentsRead our security, privacy, and buying material in one place.SubprocessorsSee which vendors help run the service and handle data.

Use each record where it matters

Trust the source, support the deal, and respond when content moves

Sign once. Use the record for customer trust, licensing talks, and leak response.

Sign every format you publish

Articles, photos, podcasts, video, PDFs, websites, live streams. One API handles all of them. Composite signing wraps a whole article package in one record. The hero image, the podcast clip, and the written piece then share a single chain of custody.

Provenance built to travel

Highly efficient text watermarking supports provenance down to a single character and is designed to survive copy-paste, scraping, and CMS rendering. Supported media formats carry C2PA manifests. Together they support the EU AI Act marking requirements that start applying August 2, 2026.

Free verification for anyone

Any journalist, court, compliance team, or AI company can check any signed file for free through the public API. A quote check tells you whether an AI citation matches your signed text.

See where your signed work appeared

See when known AI crawlers fetch pages from your site. Add sightings from the browser extension and image matches from participating organizations. Encypher does not crawl the whole web or see inside an AI answer. The report states exactly what Encypher saw.

Rights at every level

Rights profiles, licensing terms, and usage policies travel inside the file. Per-segment rights let you license one part of an article under Creative Commons and keep another part exclusive. Because the terms are machine readable, an AI company can read them before it ingests the work.

Coalition licensing

Coalition membership is opt-in. Every format you opt in is indexed for licensing deals. Direct deals you negotiate yourself stay 100% yours; coalition-brokered deals share a portion with Encypher, with exact terms in your coalition agreement.

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.

Make the rest of your stack stronger

Add proof where policies, access controls, and detection tools stop

Access controls tell systems what should happen. Detection tools estimate what may have happened. Encypher preserves the signed record of what the content said, who signed it, and how it moved.

Layer 1

Access control

robots.txtTollBitCloudflare

Tell AI crawlers not to scrape. These tools work at the server level, but only when AI companies respect your directives.

Some crawlers ignore these signals. The record inside the file still shows which terms travelled with the work.

Layer 2

Content provenance

Encypher MarkEncypher MeterEncypher Trace

Mark signs AI output, published work, and official files. Trace gives each sent copy its own hidden marker. Meter combines signed source records with events a partner shares in a report both sides can review. Meter is an early partner program.

Layer 3

Attribution and monetization

ProRataDappierMicrosoft PCM

Marketplaces estimate which sources shaped an AI output and route revenue inside their networks. Mark gives them a signed record and terms they can check. Meter can combine that record with events a partner reports for licensing review. Encypher does not price content, broker deals, or move money.

Signed source records make attribution claims easier to check. Meter is an early partner program, and each report says which facts Encypher saw and which a partner supplied.

Interoperability and policy evidence

Each row says what Encypher implements and what that claim does not mean.

C2PA 2.2Official conformance recordGenerator product at assurance Level 1, with generation and validation coverage across 20 media types. That record is narrower than the 77 formats Encypher signs and verifies, and the two numbers never mean the same thing.

C2PA 2.4Current implementation targetUnstructured-text signing follows the method carried forward in Appendix A.8. This is separate from the C2PA 2.2 product record.

RSL 1.0 + W3C ODRL 2.2Rights-policy outputMark can attach machine-readable rights terms at signing. This describes the policy formats emitted, not third-party certification.

SPUR FrameworkWorkflow mappingUsed to map signed-source records into publisher-to-AI licensing workflows. Encypher does not claim SPUR certification.

EU AI Act transparency codeEvidence workflowMark records marking and disclosure evidence for Article 50 review. It does not certify legal compliance.

For engineers

One API call to sign, one to verify

REST endpoints, drop-in integrations, a free public check, and production controls set by contract.

API specifications

The public facts here stay separate from the limits and service terms we agree for each rollout.

Public verificationNo login

Volume limitsPlan and contract

SLA and supportBy agreement

Retry safetyIdempotency-Key

REST API

Full-featured REST API with Python, TypeScript, Go, and Rust SDKs. Batch endpoints for archive workflows.

POST /api/v1/sign

POST /api/v1/sign/media

POST /api/v1/sign/rich

POST /api/v1/verify/image

GET /api/v1/public/rights

Integrations

Drop-in plugins for existing workflows. Kafka event streaming for high-throughput pipelines.

WordPress plugin
Prebid RTD module (ad-tech)
Injects a signed provenance signal into bid requests, so buyers can treat pages carrying verified content as verified inventory. See verified inventory for programmatic for the full signal; ad-tech integrations run through our partner program.
CDN edge integrations
GitHub Action + CLI
OpenAPI 3.1 spec included

Documentation

Guides, a full API reference, and a live playground to test in before you commit.

Quick-start guide
Full API reference
Interactive playground
Publisher integration guide
Archive signing cookbook

Partners and OEM

Ship provenance inside your own product

The same engine behind Encypher can run under your brand.

White-label verification pages

Serve the signed result on your own domain, under your own brand. Your users check a file without leaving your product, and the signing math runs on Encypher servers.

OEM engine embedding

Put the signing and checking engine inside your CMS, DAM, or delivery platform. You get REST and SDK access, C2PA-standard output, and licence terms that grow with your rollout.

Why Encypher

One platform for every format

Alternatives cover one format at a time.

Encypher

Articles, photos, audio, video, websites, ads, live streams

Alternatives

Text-only or image-only tools

Encypher

Provenance embedding across text and supported media formats

Alternatives

Fragile metadata stripped by platforms

Encypher

Authored C2PA's standard for unstructured text

Alternatives

Third-party implementations of standards others wrote

Encypher

Composite signing: one record per article package

Alternatives

Separate, unlinked signing per file

Encypher

Exportable evidence packages for counsel with a cryptographic chain of custody

Alternatives

Basic detection reports

Encypher

Free signing for ordinary publishing use, with paid workflow and enterprise plans

Alternatives

Per-document fees from day one

Keep exploring

View pricing Content provenance verification guide Become a partner Trust and conformance

Start protecting your content today

Sign articles, photos, podcasts, and video at no cost. Add enforcement tools when you are ready to license. Enterprise plans for unlimited volume and dedicated support.

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