One integration across every output type
Mark and verify text, photos, audio, video, documents, websites, and live streams without assembling a separate vendor stack for each medium.
The content provenance platform
One platform. Mark anything. Verify every supported signal.
One vendor. One integration. Every output type. Encypher handles the technical marking, detection, identity, timestamp, and evidence layer for Article 50 across text, images, audio, video, and files.
86
file and media formats signed and verified
1 endpoint
for C2PA and supported watermark signals
$0
a free public check for anyone, no account
One endpoint. Separate evidence. Encypher supplies technical infrastructure and evidence. Your team and counsel retain responsibility for legal scope, disclosure, and governance.
C2PA conformant generator product. CA + TSA on the Trust Lists.
Enterprise needs?
One platform, four jobs
Mark writes the record. Verify reads every supported signal. Meter and Trace turn it into action.
Start with the technical Article 50 job in front of you. The same evidence supports trust, licensing review, and leak response.
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 86 file and media formats.
- 1
Verification control plane
One public endpoint for C2PA validation, supported watermark detection, conditional soft-binding recovery, and separate evidence
- 2
Marking and signing
C2PA provenance and content-level marks for text, images, audio, video, documents, fonts, and live streams
- 3
Watermark routing
Current Encypher marks today; qualified specialist providers selected by modality and policy as they launch
- 4
Identity and trust
Organization identity, claim-signing CA, timestamps, and public C2PA records
- 5
Evidence and policy
Separate cryptographic, watermark, recovery, and policy results in one review path
- 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.
The right mark for the medium
Encypher applies signed provenance and current content-level marks across text and supported media. Each watermark claim carries its tested transformation limits; stronger partner profiles appear only after they qualify.
One verification endpoint
Check C2PA credentials and supported watermark signals in one request. When the applicable watermark and resolver are present, C2PA soft binding can recover linked provenance after embedded metadata is removed.
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 86 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
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