The Complete Stack for
Text Content Authenticity
Sign, verify, attribute, and license text content with cryptographic provenance. Built on the C2PA standard we co-authored. Free infrastructure for every publisher.
C2PA Text Infrastructure Stack
Six layers that take content from signing through licensing. Each layer is production-ready and accessible via REST API.
Core Capabilities
Everything you need to protect, verify, and monetize text content.
C2PA Document Signing
Sign text content with C2PA 2.3-compliant manifests. Sentence-level Merkle tree authentication creates tamper-evident provenance for every paragraph.
Invisible Embeddings
Patent-pending Unicode watermarks survive copy-paste, CMS rendering, email forwarding, and web scraping. Invisible to readers, machine-readable for verification.
Attribution & Verification
Public verification API lets anyone confirm content origin. Quote integrity verification checks whether AI-generated citations match signed source material.
Enforcement Pipeline
From detection to licensing: attribution analytics show where content appears in AI outputs, formal notices establish willful infringement, and evidence packages are court-ready.
Rights Management
Publisher rights profiles, licensing terms, and usage policies travel with content. AI companies can resolve rights programmatically before ingestion.
Coalition Licensing
Auto-enrolled in the Encypher Coalition. Content is indexed for licensing deals. Publishers receive the majority of revenue on every deal -- same splits across all tiers.
We're Authoring the Future of Text Content Authenticity
Collaborating with the World's Leading Companies
Built for Developers
One API call to sign. One API call to verify. Production-grade SLAs for every scale.
API Specifications
Production-grade infrastructure with documented limits and uptime guarantees.
10K / min (Ent.)
REST API
Full-featured REST API with Python, TypeScript, Go, and Rust SDKs. Batch endpoints for archive workflows.
Integrations
Drop-in plugins for existing workflows. Kafka event streaming for high-throughput pipelines.
- WordPress plugin
- GitHub Action
- Kafka event streaming
- CLI tool + browser extension
- OpenAPI 3.1 spec included
Documentation
Comprehensive guides, API reference, and interactive playground for testing before you commit.
- Quick-start guide
- Full API reference
- Interactive playground
- Publisher integration guide
- Archive signing cookbook
Why Encypher
Purpose-built for text content authenticity. Not an afterthought bolted onto image tools.
| Capability | Encypher | Alternatives |
|---|---|---|
| Sentence-level Merkle tree authentication | Document-level hashing only | |
| Invisible embeddings survive copy-paste and scraping | Visible watermarks easily removed | |
| Co-Chair of C2PA Text Provenance Task Force | Third-party C2PA implementation | |
| Quote integrity verification for AI attribution | No AI-specific verification capabilities | |
| Court-ready evidence packages with chain of custody | Basic detection reports | |
| Free signing infrastructure with paid enforcement | Per-document signing fees from day one |
Start Protecting Your Content Today
Free signing infrastructure for every publisher. Add enforcement tools when you are ready to license. Enterprise plans for organizations that need unlimited volume and dedicated support.