# Encypher > The content provenance platform. Encypher brings marking, signing, and verification into one workflow for AI providers and professional publishers, using supported APIs and publishing integrations. Teams use the resulting technical evidence in content-compliance, editorial, and distribution reviews. Encypher authored the C2PA standard for unstructured text and co-chairs the C2PA Text Provenance Task Force. Supported signals are reported separately; Encypher does not guarantee legal compliance. Last verified: September 3, 2026. ## Products Canonical order: Mark, Meter, Trace. - [Encypher Verify](https://encypher.com/verify): A named platform capability, not a separate priced SKU. One endpoint checks C2PA credentials and supported watermark signals across text and media, with conditional soft-binding recovery and separate evidence. Basic public verification is free. - [Mark](https://encypher.com/products/mark): Available now. Apply signed C2PA provenance and supported content-level marks to completed content, AI outputs, and official files across text, images, audio, video, PDF, and Microsoft Office formats through one output policy. - [Meter](https://encypher.com/products/meter): Early partner program. Bounded source-use reports that keep observed provenance activity separate from partner-supplied retrieval and usage events, with unresolved gaps left labelled. - [Trace](https://encypher.com/products/trace): Available now. Give every recipient a copy with its own invisible marker; when a leaked copy surfaces, a recovered marker resolves to the recipient, session, and timestamp. It identifies the copy, not the person who moved it. ## Platform and pricing - [Platform](https://encypher.com/platform): One platform to mark any supported output and verify every supported signal. C2PA validation, watermark detection, conditional soft-binding recovery, and customer policy return through one endpoint while remaining separate evidence. - [Pricing](https://encypher.com/pricing): The Free tier includes 1,000 declared AI outputs per month and 5 EU AI Act Article 50 evidence records per month. Mark Starter is $99/mo or $990/yr for 10,000 declared AI outputs; Team is $349/mo or $3,490/yr for 40,000; Standard is $999/mo or $9,990/yr for 150,000; Growth is $4,000/mo or $40,000/yr for 1,000,000; Enterprise is unlimited. One declared AI output is one document, image, or file labeled as AI generated and marked. Every paid plan includes a CAWG identity certificate, pending enrollment and program approval; white-label private key issuance from the Encypher root Certificate Authority is a paid add-on. ## Who we serve - [Publishers and rights holders](https://encypher.com/solutions/publishers): Keep verified identity, supplied rights terms, and integrity evidence with text and media through distribution. Give each recipient the same free public check. - [AI companies](https://encypher.com/solutions/ai-companies): Use one vendor and one integration for the technical marking, detection, and evidence layer of Article 50 across generated text and media. Encypher does not determine legal scope. - [Enterprises](https://encypher.com/solutions/enterprises): Apply one output policy and one evidence schema across applications, models, business units, and supported output types. ## Rights, provenance, and standards - [Rights management](https://encypher.com/rights-management): A deterministic, fail-closed W3C ODRL 2.2 policy engine (odrl-engine/0.2.0) turns your licensing terms plus an intended use into a machine-readable permit or prohibit verdict. Bronze, Silver, and Gold terms cover crawling, RAG, and training. RSL 1.0 compatible. Rights terms are supplied evidence of the terms you publish, not proof of legal ownership. - [Content provenance](https://encypher.com/content-provenance): The guide to cryptographic proof of origin across 77 canonical formats, with 89 signable and 83 verifiable MIME types reported by the live API. - [EU AI Act Article 50 text marking](https://encypher.com/content-provenance/eu-ai-act): Mark AI-generated text in a machine-readable form, provide a public detection path, and keep a signed result. Article 50 obligations have applied since August 2, 2026; a narrow provider transition for eligible existing systems runs to December 2, 2026. - [C2PA standard](https://encypher.com/c2pa-standard): How the open content-provenance standard works, backed by 400+ member organizations including Adobe, Microsoft, Google, BBC, and OpenAI. C2PA 2.4 is the current specification. - [Trust and conformance](https://encypher.com/trust): 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. ## Tools and company - [Verify content](https://encypher.com/tools/verify): Free public tool for C2PA credentials and supported watermark signals across text and media. Invalid, missing, unsupported, detected, and recovered states remain separate. No account or API key required. - [Verification API](https://encypher.com/verify/api): One contract across supported output types. It selects applicable C2PA parsers and watermark detectors and returns separate credential, watermark, recovery, and policy evidence. - [Recover stripped metadata](https://encypher.com/content-provenance/recover-stripped-metadata): C2PA soft binding can recover linked provenance after embedded metadata is removed when the applicable watermark and resolver are present. - [Signed AI chat demo](https://encypher.com/chat): A live chat whose AI answers are signed with C2PA provenance, so each response can be independently verified. - [EU AI Act Article 50 readiness check](https://encypher.com/tools/eu-ai-act-readiness): Free questionnaire separating likely provider marking duties from deployer disclosure duties, identifying output-marking gaps, and producing a one-page report. - EU AI Act readiness API for agents: `GET https://encypher.com/api/tools/eu-ai-act-readiness` returns a self-describing JSON specification; a parameterized URL (see the spec) returns a scored readiness result with the applicable Article 50 obligations. Free, no authentication. Informational, not legal advice. - [Company](https://encypher.com/company): The team behind Encypher and the open standard for AI content authenticity. ## Contact - Website: https://encypher.com - API documentation: https://api.encypher.com/docs - Email: contact@encypher.com - Sales: sales@encypher.com ## Full site index Complete deep-link index of every public page on encypher.com, 185 URLs, generated from the site's own route table and content registries at build time. Descriptors are each page's own meta description, content-registry entry, or blog front matter; none are written by hand here. Index generated 2026-08-13. ### Products (4) - [Platform: One Engine for Provenance Across 75+ Formats](https://encypher.com/platform): Sign articles, photos, podcasts, video, websites, and ads with cryptographic provenance. C2PA manifests support 75+ file and media formats, while highly efficient text watermarking supports provenance down to a single character. - [Encypher Mark: One Article 50 Marking Integration](https://encypher.com/products/mark): Mark AI-generated text, images, audio, and video with signed provenance, public detection, and supported content-level watermarks through one output policy. - [Encypher Meter: Source-Use Reports for AI Answers](https://encypher.com/products/meter): Turn one AI answer into a shared report of its signed sources, reported usage, rights terms, and open questions. - [Encypher Trace: Find the Copy Behind a Leak](https://encypher.com/products/trace): Give each recipient a marked copy. If one comes back, resolve its hidden mark to the send record. ### Solutions (7) - [Solutions | Content Authentication by Workflow](https://encypher.com/solutions): Content authentication for publishers, AI providers, official communications, and enterprise AI portfolios. Choose the record your team needs. - [Watermark AI Output and Sign It With C2PA 2.4](https://encypher.com/solutions/ai-companies): 4 Content Credentials to supported AI output. Check the delivered result and keep the record an Article 50 review asks for. - [C2PA 2.4 Content Credentials for Ad Creative](https://encypher.com/solutions/creative-agencies): 4 Content Credentials, then check the signer, the declarations, and the source files behind the art against your client brief. - [AI Output Proof Across Your Company](https://encypher.com/solutions/enterprises): Mark final AI output, keep the signed result, and see where the control holds or gets missed across the apps your team connected. - [Proof for Official Statements and Files](https://encypher.com/solutions/official-content): Sign the final file and let each recipient check which organization sent it and if it changed. - [Publisher and Rights Holder Content Provenance](https://encypher.com/solutions/publishers): Bring signing at release and public checking into your publishing workflow. Give editors and distribution partners one source and supplied terms record to inspect. - [Use Cases | Content Provenance for Every Industry and Role](https://encypher.com/use-cases): How publishers, AI companies, governments, and enterprises use Encypher to prove content origin, ownership, and rights. One verification layer across every use case. ### Standards and conformance (17) - [What Is the C2PA Standard? Plain-English Guide (2026)](https://encypher.com/c2pa-standard): C2PA is the open standard for content provenance: what it is, who runs it, how manifests work, and how it maps to the EU AI Act. By Encypher, authors of the C2PA text-provenance standard. - [C2PA Conformance Explorer: Conformant Products and Implementations](https://encypher.com/c2pa-standard/conformance): Browse all C2PA conformant products and implementations. Search by company, product type, or media format. - [C2PA Implementation Guide for Developers | Encypher API](https://encypher.com/c2pa-standard/implementation-guide): Developer guide for C2PA implementation via the Encypher API. Quickstart with curl and SDKs for Python, TypeScript, Go, and Rust, plus free verification. - [C2PA Manifest Structure: JUMBF, COSE, Claims, Assertions](https://encypher.com/c2pa-standard/manifest-structure): Technical explainer of C2PA manifest structure. JUMBF containers, COSE signatures, claim structure, assertion types, certificate chains, and ingredient lists. - [C2PA support across 86 formats](https://encypher.com/c2pa-standard/media-types): Signing and verification support across 86 file and media formats, including images, audio, video, documents, fonts, and text. Support varies by format. - [C2PA Members: Who Is Building the Standard](https://encypher.com/c2pa-standard/members): Over 400 C2PA member organizations including Adobe, Microsoft, Google, OpenAI, BBC, Reuters, and AP. Why broad adoption matters for content provenance. - [The C2PA Standard for Unstructured Text: Text Provenance](https://encypher.com/c2pa-standard/section-a7): The C2PA standard for unstructured text defines how C2PA manifests are embedded into articles, posts, and plain text. Encypher authored it and co-chairs the C2PA Text Provenance Task Force. - [C2PA vs. SynthID: Open Standard vs. Proprietary Watermarking](https://encypher.com/c2pa-standard/vs-synthid): C2PA supplies open, cryptographically signed provenance. SynthID supplies a provider-specific statistical signal. - [Compare Content Provenance Solutions](https://encypher.com/compare): Side-by-side technical comparisons of Encypher against SynthID, WordProof, AI detection tools, TollBit, ProRata, and category-level comparisons of C2PA vs blockchain and content provenance vs detection. - [C2PA vs Blockchain for Content Provenance: Embedded Manifests vs External Hash Anchoring](https://encypher.com/compare/c2pa-vs-blockchain): C2PA manifests are embedded in the file and travel with it. Blockchain proofs are external records that require a lookup. - [Content Provenance vs Content Detection: Proof of Origin vs Identification After the Fact](https://encypher.com/compare/content-provenance-vs-content-detection): Content provenance is cryptographic proof of who created content, established at the moment of creation. Content detection is statistical inference applied after the fact. - [Encypher vs AI Detection Tools (GPTZero, Originality.ai): Proof vs Probability](https://encypher.com/compare/encypher-vs-detection-tools): AI detection tools ask whether content was made by AI. Encypher answers who made this content and provides the cryptographic receipt. - [Encypher vs ProRata: Input-Side Provenance vs Output-Side Attribution](https://encypher.com/compare/encypher-vs-prorata): ProRata estimates which sources contributed to an AI output, inside a closed opted-in system. Encypher embeds proof before content enters any AI system. - [Encypher vs SynthID: Cryptographic Provenance vs Statistical Watermarking](https://encypher.com/compare/encypher-vs-synthid): SynthID adds a model-specific statistical signal during generation. Encypher signs final output with C2PA and verifies supported provenance and watermark evidence through one endpoint. - [Encypher vs TollBit: Embedded Provenance vs Opt-In Access Gates](https://encypher.com/compare/encypher-vs-tollbit): TollBit gates AI access for cooperating companies. Encypher embeds proof that works whether AI companies cooperate or not. - [Encypher vs WordProof: Embedded Provenance vs Blockchain Timestamping](https://encypher.com/compare/encypher-vs-wordproof): WordProof registers a hash on a blockchain to prove content existed at a point in time. Encypher embeds provenance in the text itself. - [Trust & C2PA Conformance](https://encypher.com/trust): 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. ### Content provenance guides (25) - [AI Copyright Infringement: Cryptographic Proof](https://encypher.com/ai-copyright-infringement): Stop guessing with about 26% accurate AI detectors. Encypher provides cryptographically verifiable provenance evidence for AI copyright analysis. - [Better Than AI Detectors: Cryptographic Proof](https://encypher.com/ai-detector): AI detectors provide about 26% accuracy with high false positives. Encypher provides cryptographic proof: deterministic verification for signed content with no statistical false-positive rate. - [What Is Content Provenance? The Definitive Guide](https://encypher.com/content-provenance): Content provenance embeds cryptographic proof of origin into digital content. Learn how C2PA manifests, cryptographic watermarking, and free verification work across the MIME types published by Encypher's live API. - [Content Provenance for Academic Publishing](https://encypher.com/content-provenance/academic-publishing): Embed cryptographic provenance into journal articles, preprints, and research data. Protect research integrity, document AI-assisted authorship, and trace peer review provenance across the scholarly publishing lifecycle. - [Audio and video content provenance | 16 formats](https://encypher.com/content-provenance/audio-video): C2PA provenance for audio and video: 7 audio formats, including WAV, MP3, AAC, FLAC, and M4A, and 9 video formats, including MP4, MOV, M4V, and AVI. Container-embedded manifests travel with the files. - [California AI Transparency Act and C2PA](https://encypher.com/content-provenance/california-ai-transparency-act): 6 require, when each duty applies, and where C2PA provenance helps without replacing the rest of the law. - [EU AI Act Article 50 Text Marking](https://encypher.com/content-provenance/eu-ai-act): Mark AI-generated text in a machine-readable form, provide a public detection path, and keep a signed result. Start with one output free. - [Content Provenance for Government Agencies](https://encypher.com/content-provenance/government): Public records authentication, FOIA documentation integrity, regulatory filing provenance, and official document authentication for government agencies using C2PA cryptographic signing. - [Image content provenance: 15 formats | C2PA](https://encypher.com/content-provenance/images): Image provenance with C2PA JUMBF manifests across 15 formats: JPEG, PNG, WebP, TIFF, AVIF, HEIC, DNG, GIF, SVG, and more. EXIF strips, provenance persists. - [Content Provenance for Legal Practice](https://encypher.com/content-provenance/legal): Cryptographic document provenance for evidence integrity, formal notice requirements, court admissibility, and AI disclosure obligations. Built for law firms and legal departments managing AI content authentication challenges. - [Live Stream Content Provenance | C2PA 2.3 Section 19](https://encypher.com/content-provenance/live-streams): Real-time provenance for live video streams. 3 Section 19 per-segment manifests with backwards-linked chains. - [Content Provenance for Music: Labels, Distributors, Streaming](https://encypher.com/content-provenance/music-industry): Embed cryptographic C2PA provenance into WAV, MP3, FLAC, M4A, and AAC audio files. Protect music from unauthorized AI training, document rights ownership, and verify authenticity across streaming and distribution platforms. - [Recover C2PA Provenance After Metadata Is Stripped](https://encypher.com/content-provenance/recover-stripped-metadata): Learn how C2PA soft binding can recover linked provenance after embedded metadata is removed, when the applicable watermark and resolver are present. - [Text Content Provenance: How It Works | C2PA Text Standard](https://encypher.com/content-provenance/text): Text provenance using the C2PA standard for unstructured text and Encypher's proprietary sentence-level attribution. Invisible embedding, copy-paste survival, and quote integrity verification. - [Universal C2PA and Watermark Verification API](https://encypher.com/content-provenance/verification): Integrate verification once across 79 file and media formats. Check C2PA credentials and supported watermark signals with separate evidence and conditional soft-binding recovery. - [Content Provenance vs. Blockchain Timestamping](https://encypher.com/content-provenance/vs-blockchain): Why embedded C2PA provenance beats blockchain timestamping for content authentication. Proof that travels with content versus proof that requires an external lookup. - [Content Provenance vs. Content Detection](https://encypher.com/content-provenance/vs-content-detection): Why cryptographic proof of origin beats statistical AI content detection. Deterministic verification for signed content with no statistical false-positive rate versus probabilistic guessing with high error rates. - [Cryptographic Watermarking: Proof Embedded in Content](https://encypher.com/cryptographic-watermarking): Cryptographic watermarking embeds deterministic proof of origin into text, images, audio, and video. Survives copy-paste, B2B distribution, and scraping. - [How Cryptographic Watermarking Works | Technical Deep Dive](https://encypher.com/cryptographic-watermarking/how-it-works): How Encypher embeds verifiable content provenance: invisible text markers, sentence-level authentication, C2PA manifest embedding for media, and enterprise distribution fingerprinting. - [Legal Implications of Cryptographic Watermarking | Willful Infringement](https://encypher.com/cryptographic-watermarking/legal-implications): How cryptographic watermarking shifts copyright disputes from innocent to willful infringement. Statutory damages, formal notice mechanism, and the evidentiary weight of cryptographic proof. - [How Cryptographic Watermarking Survives Distribution](https://encypher.com/cryptographic-watermarking/survives-distribution): Why cryptographic watermarks survive copy-paste, wire service distribution, aggregator scraping, and social sharing. The durability proof. - [Cryptographic Watermarking for Text | Invisible, Durable, Verifiable](https://encypher.com/cryptographic-watermarking/text): Invisible cryptographic text watermarking using proprietary invisible encoding. Survives copy-paste, B2B distribution, and aggregator scraping. - [Cryptographic vs. Statistical Watermarking | Encypher vs. SynthID](https://encypher.com/cryptographic-watermarking/vs-statistical-watermarking): Deterministic cryptographic proof versus probabilistic statistical estimates. Why cryptographic watermarking survives editing and distribution while statistical watermarks degrade. - [Beyond Deepfake Detection: Cryptographic Authentication](https://encypher.com/deepfake-detection): Deepfake detection tools guess with statistical analysis. Encypher provides cryptographic proof of content authenticity, deterministic for signed content. - [Content Provenance Glossary: Key Terms and Definitions](https://encypher.com/glossary): Definitions for content provenance, C2PA, cryptographic watermarking, Merkle tree authentication, willful infringement, and 40+ terms in the content provenance ecosystem. ### File formats (31) - [JPEG](https://encypher.com/content-provenance/jpeg): image/jpeg. The most widely used image format on the web and in photography. JPEG provenance enables publishers, photographers, and news organizations to embed proof of origin directly into their images. - [PNG](https://encypher.com/content-provenance/png): image/png. Lossless image format used for graphics, screenshots, and images requiring transparency. PNG provenance protects infographics, charts, and editorial graphics. - [WebP](https://encypher.com/content-provenance/webp): image/webp. Modern web image format developed by Google, offering superior compression. WebP provenance covers the growing share of web images served in this format. - [TIFF](https://encypher.com/content-provenance/tiff): image/tiff. High-fidelity image format used in professional photography, publishing, and archival. TIFF provenance protects master images and print-ready assets. - [AVIF](https://encypher.com/content-provenance/avif): image/avif. Next-generation image format based on AV1 video codec, offering superior compression and quality. AVIF provenance covers the emerging standard for web images. - [HEIC](https://encypher.com/content-provenance/heic): image/heic. High Efficiency Image Container used by Apple devices. HEIC provenance covers photos taken on iPhones and iPads. - [HEIC Sequence](https://encypher.com/content-provenance/heic-sequence): image/heic-sequence. HEIC image sequence format for burst photos and animations. Provenance covers multi-frame image sequences from Apple devices. - [HEIF](https://encypher.com/content-provenance/heif): image/heif. High Efficiency Image File Format, the generic container for HEVC-compressed images. HEIF provenance covers the broader ecosystem beyond Apple-specific HEIC. - [HEIF Sequence](https://encypher.com/content-provenance/heif-sequence): image/heif-sequence. HEIF image sequence format for multi-frame content. Provenance covers animated and sequential image content. - [SVG](https://encypher.com/content-provenance/svg): image/svg+xml. Scalable Vector Graphics format for resolution-independent images. SVG provenance protects logos, icons, illustrations, and data visualizations. - [DNG](https://encypher.com/content-provenance/dng): image/x-adobe-dng. Adobe Digital Negative format for raw camera data. DNG provenance protects professional RAW photography at the point of capture. - [GIF](https://encypher.com/content-provenance/gif): image/gif. Graphics Interchange Format, widely used for animations and simple graphics. GIF provenance covers memes, animated content, and reaction images. - [JPEG XL](https://encypher.com/content-provenance/jxl): image/jxl. Next-generation image format designed to replace JPEG with superior compression and quality. JXL provenance future-proofs content as browser adoption grows. - [WAV](https://encypher.com/content-provenance/wav): audio/wav. Uncompressed audio format used in professional music production and broadcasting. WAV provenance protects master recordings and broadcast audio. - [MP3](https://encypher.com/content-provenance/mp3): audio/mpeg. The most widely distributed audio format. MP3 provenance covers podcasts, music distribution, and audio content across the web. - [M4A](https://encypher.com/content-provenance/m4a): audio/mp4. Apple audio container format using AAC encoding. M4A provenance covers Apple ecosystem audio, iTunes content, and high-quality audio distribution. - [AAC](https://encypher.com/content-provenance/aac): audio/aac. Advanced Audio Coding, successor to MP3 with better quality at similar bitrates. AAC provenance covers streaming audio and mobile content. - [FLAC](https://encypher.com/content-provenance/flac): audio/flac. Free Lossless Audio Codec for archival-quality audio. FLAC provenance protects lossless music masters and high-fidelity audio archives. - [MPA](https://encypher.com/content-provenance/mpa): audio/mpa. MPEG audio format for broadcast and multimedia applications. MPA provenance covers broadcast audio streams and legacy multimedia content. - [MP4](https://encypher.com/content-provenance/mp4): video/mp4. The dominant video format for web, streaming, and social media. MP4 provenance covers the vast majority of video content distributed online. - [MOV](https://encypher.com/content-provenance/mov): video/quicktime. Apple QuickTime container format used in professional video production. MOV provenance protects production masters and editorial video. - [M4V](https://encypher.com/content-provenance/m4v): video/x-m4v. Apple video format similar to MP4, used for iTunes and Apple TV content. M4V provenance covers Apple ecosystem video distribution. - [AVI](https://encypher.com/content-provenance/avi): video/x-msvideo. Microsoft Audio Video Interleave format. AVI provenance covers legacy video content and Windows ecosystem video. - [PDF](https://encypher.com/content-provenance/pdf): application/pdf. Portable Document Format, the universal standard for document exchange. PDF provenance protects contracts, reports, legal filings, research papers, and ebooks. - [EPUB](https://encypher.com/content-provenance/epub): application/epub+zip. Electronic publication format for ebooks and digital publishing. EPUB provenance protects books, journals, and long-form digital content. - [DOCX](https://encypher.com/content-provenance/docx): application/vnd.openxmlformats-officedocument.wordprocessingml.document. DOCX document format. DOCX provenance protects business documents, contracts, and enterprise content. - [ODT](https://encypher.com/content-provenance/odt): application/vnd.oasis.opendocument.text. OpenDocument Text format for open-standard word processing. ODT provenance covers government documents, open-source workflows, and cross-platform document exchange. - [OXPS](https://encypher.com/content-provenance/oxps): application/oxps. Open XML Paper Specification format for fixed-layout documents. OXPS provenance covers print-ready documents and archival content. - [OTF](https://encypher.com/content-provenance/otf): font/otf. OpenType Font format, the industry standard for cross-platform typography. OTF provenance protects font intellectual property and licensing. - [TTF](https://encypher.com/content-provenance/ttf): font/ttf. TrueType Font format widely used in operating systems and applications. TTF provenance protects font assets across platforms. - [SFNT](https://encypher.com/content-provenance/sfnt): font/sfnt. SFNT container format underlying both OTF and TTF fonts. SFNT provenance covers the base font container format. ### Industries (8) - [C2PA for News Publishers: Text Provenance Guide](https://encypher.com/c2pa-standard/for-news-publishers): How news publishers use the C2PA standard to prove who published an article and when, survive syndication, and build licensing leverage. - [C2PA for Academic Publishing: Research Integrity Guide](https://encypher.com/c2pa-standard/for-academic-publishing): How journals use C2PA manifests to protect the version of record, link revisions cryptographically, and label AI-generated material in submissions. - [C2PA for the Music Industry: Audio Provenance Guide](https://encypher.com/c2pa-standard/for-music-industry): How labels, distributors, and artists use C2PA manifests to prove ownership of masters, document samples and remixes, and separate human recordings from AI audio. - [C2PA for Government: Public Records Provenance Guide](https://encypher.com/c2pa-standard/for-government): How agencies use the C2PA standard to make official documents, statements, and public records verifiable by anyone, without a call to the agency. - [C2PA for Legal Teams: Document Provenance Guide](https://encypher.com/c2pa-standard/for-legal): How law firms and in-house teams use C2PA manifests for tamper-evident contracts, filings, and independent proof of when a document existed in what form. - [C2PA for Healthcare: Medical Content Provenance Guide](https://encypher.com/c2pa-standard/for-healthcare): How healthcare organizations use the C2PA standard to keep patient-facing information and official communications verifiable against AI-generated misinformation. - [C2PA for Ad Tech: Verified Inventory and Brand Safety Guide](https://encypher.com/c2pa-standard/for-ad-tech): How advertising platforms use C2PA verification to separate authentic publisher inventory from AI-generated made-for-advertising content. - [C2PA for AI Companies: Output Marking and Provenance Guide](https://encypher.com/c2pa-standard/for-ai-companies): How AI companies use the C2PA standard to mark generated outputs machine-readably, document licensed content provenance, and prepare for EU AI Act Article 50. ### Tools and demos (13) - [Provenance for AI inputs & outputs | Encypher Mark](https://encypher.com/ai-demo): Paste a source to check its provenance, then sign what your AI generates: invisible, sentence-level C2PA provenance with free public verification. Built for EU AI Act Article 50. - [Provenance Chat: Watch AI Output Get Signed in Real Time](https://encypher.com/chat): An AI chat that signs each response as it streams. The provenance panel reports sentence-level proof, document-level proof, or no signature, and any marked sentence can be verified for free. - [Request a private demo](https://encypher.com/demo): Book a guided 30-minute walkthrough of Encypher: live C2PA signing, sentence-level tamper detection, and the verification dashboard that builds your ownership evidence. For publishers, AI companies, and enterprises. - [Sign an article free and see what the record proves](https://encypher.com/publisher-demo): Publishers sign content free under fair-use guardrails and anyone can verify it publicly with no account. Encypher embeds C2PA provenance, with sentence-level markers in supported text workflows, so a reader, partner, or licensing team can check who signed an article and whether the signed content still matches. - [Free Content Provenance Tools](https://encypher.com/tools): Sign, verify, inspect, and plan content provenance workflows with Encypher's free public tools. - [AI Cost & Exposure Report | Encypher Tool](https://encypher.com/tools/ai-cost-exposure): Scan any newsroom or station URL to see how much of your search traffic AI answers are absorbing: sampled marking coverage, crawler-policy signals, and an AI exposure score. Add your monthly traffic to model the referral revenue at risk. - [Encypher Verify - Chrome Extension for C2PA Content Verification](https://encypher.com/tools/chrome-extension): Verify C2PA provenance on any webpage with the free Encypher Verify Chrome extension. No account required for verification. - [EU AI Act Article 50 Readiness Check](https://encypher.com/tools/eu-ai-act-readiness): Check your likely EU AI Act Article 50 duties and output-marking gaps. Get a free one-page readiness report with no account required. - [Encypher Sign/Verify Tool](https://encypher.com/tools/sign-verify): Sign or verify secure metadata in your text using Encypher provenance tools. Free, secure, and privacy-preserving. - [/tools/verify](https://encypher.com/tools/verify): The public verifier checks C2PA credentials and supported watermark signals across 75+ file and media formats. It reports invalid, missing, unsupported, and detected states separately. - [Encypher Provenance - WordPress Plugin for C2PA Content Authentication](https://encypher.com/tools/wordpress): Protect your WordPress content with cryptographic proof of authorship. C2PA-compliant digital signatures prove when content was created, by whom, and detect tampering. - [C2PA Workflow Architect: Map Your Chain of Trust](https://encypher.com/tools/workflow-architect): Free interactive tool that maps where C2PA manifests are generated, inspected, and redacted across capture, production, and publish. Vendor-agnostic templates for publishers, broadcasters, and agencies, exportable as JSON. - [Try Encypher in 30 seconds](https://encypher.com/try): Paste text, sign it, verify it. No account. ### Integrations (7) - [Content Provenance on Akamai EdgeWorkers](https://encypher.com/akamai): An Akamai EdgeWorker responseProvider with EdgeKV caching adds content provenance across the Akamai network. White-glove deployment through Property Manager, no origin changes. - [Content Provenance with Lambda@Edge on CloudFront](https://encypher.com/aws-cloudfront): A Lambda@Edge origin-request function adds invisible content provenance to every article served through CloudFront. One CloudFormation template, no CMS changes. - [Content Provenance on Cloudflare Workers](https://encypher.com/cloudflare): Deploy a Cloudflare Worker that adds invisible content provenance to every article at the edge. No CMS changes, no DNS migration. - [Content Provenance on Fastly Compute](https://encypher.com/fastly): A Fastly Compute service that adds invisible content provenance to every article at the edge. Named backends, KV Store caching, fail-open. - [Content Provenance with Netlify Edge Functions](https://encypher.com/netlify): One Netlify Edge Function and one config line add invisible content provenance to every article on your site. No site code changes. - [Verified Inventory for Programmatic](https://encypher.com/programmatic): Cryptographic provenance signals in the bid stream that buyers can check themselves. A Prebid RTD module and a documented OpenRTB trust schema let sell-side platforms label provenance-signed inventory and buy-side platforms bid on it with proof. - [Content Provenance with Vercel Edge Middleware](https://encypher.com/vercel): Vercel Edge Middleware that adds invisible content provenance to every article. js, SvelteKit, Nuxt, and any framework. ### Research and reports (9) - [Encypher in the Media | Talks and Appearances](https://encypher.com/media): Encypher talks, panels, and conversations on content provenance, the EU AI Act, and the future of intellectual property in the age of AI. - [Content provenance for premium publishers in the AI era](https://encypher.com/media/beeler-tech-2026): How publishers use C2PA to protect their content, prove ownership to AI companies, and earn premium ad dollars. Watch Erik Svilich's Pub Report talk. - [California's AI Transparency Act takes effect](https://encypher.com/media/california-ai-transparency-act): Watch Senator Josh Becker, UC Berkeley's David Evan Harris, and Encypher's Eddan Katz explain California's AI transparency law, C2PA, enforcement, and alignment with the EU AI Act. - [The Future of IP and Media (Cannes 2026)](https://encypher.com/media/future-of-ip-and-media-cannes-2026): A main-stage panel at the Cannes Film Festival 2026 on the future of intellectual property and media: the investor, legal, producer, and content-provenance views, with Encypher founder Erik Svilich. - [From Content Credentials to AI licensing and attribution](https://encypher.com/media/iptc-photo-metadata-conference-2026): Watch Erik Svilich's IPTC presentation on WordPress publishing, Content Credentials, AI licensing, and attribution. Includes an overview and full transcript. - [Websites Are Locking the Wrong Door: The AI Content Control Gap | Encypher Report](https://encypher.com/reports/ai-content-control-gap): We checked 457 news websites. Most block the robots that learn from old stories, but not the robot that writes quick answers and costs them readers. - [Encypher Research | The Future of IP and Media](https://encypher.com/research): Research from inside the C2PA standard-setting process on content provenance, rights, and the economics of media as AI becomes the primary reader of the web. - [Beyond the Visual Bias | ISSMAD 2026 | Encypher Research](https://encypher.com/research/issmad2026): Why synthetic media provenance must include text, and why watermarking, signed C2PA provenance, and independent observation answer different questions. - [The Short-Text Provenance Gap | Encypher Research](https://encypher.com/research/short-text-provenance-gap): New EU rules say AI content must be marked. For short text, the rules admit this is very hard. ### Policy and rights (4) - [AI Provenance Laws and Policy Briefs](https://encypher.com/policy): A current register of content provenance, AI marking, detection, and disclosure requirements, with plain-language guides and primary-source citations. - [EU AI Act Article 50: Plain-Language Brief on Machine-Readable Marking](https://encypher.com/policy/article-50-brief): Who must mark or disclose AI-generated content under EU AI Act Article 50, what each obligation requires, and when it applies. An ungated, print-friendly policy brief with the Article 50(1)-(4) obligation table, timeline, penalties, and Code of Practice status. - [Rights Management | W3C ODRL Policy Engine for AI Licensing](https://encypher.com/rights-management): 2 policy engine that turns your licensing terms plus an intended use into a machine-readable permit or prohibit verdict. 4 signed document carries its own ODRL policy, bound at signing. - [Rights Policy](https://encypher.com/rights-policy): 0 license, and a TDMRep policy. ### Blog (33) - [/blog](https://encypher.com/blog) - [2025 in Review: The Year Content Provenance Became Essential](https://encypher.com/blog/2025_in_review_the_year_content_provenance_became_essential): 2025-12-23. From landmark court decisions to regulatory milestones, 2025 was the year content provenance moved from concept to critical infrastructure. Here's what happened and what it means. - [A Digital Fingerprint: Ending AI's Billion-Dollar Guessing Game](https://encypher.com/blog/a-digitial-fingerprint): 2025-09-30. Encypher embeds invisible metadata to make AI content verifiable, tamper-proof, and trusted by default. - [AI Plagiarism Detection Is Broken: Here's How We Fix It](https://encypher.com/blog/ai-plagiarism-detection-is-broken-heres-how-we-fix-it): 2025-03-25. In education and professional writing, a troubling trend has emerged. AI text detection tools are flagging innocent authors for 'using AI' when they haven't. - [Anthropic Brings C2PA Provenance to Claude: What Its Two-Layer Marking Plan Means](https://encypher.com/blog/anthropic_claude_c2pa_two_layer_marking_plan): 2026-08-13. Anthropic plans an invisible watermark for Claude-generated text and signed C2PA provenance for supported files. The two marks answer different questions and have different limits. - [C2PA 2.3 Published: Encypher Authors Text Provenance Standard](https://encypher.com/blog/c2pa-2.3-published---encypher-authors-text-provenance-standard): 2026-01-08. 7 on Embedding Manifests into Unstructured Text, authored by Encypher. This marks a milestone for text authentication. - [California SB 942: AI Transparency Requirements Starting January 2026](https://encypher.com/blog/california_sb_942_ai_transparency_requirements_starting_january_2026): 2025-12-16. California's landmark AI transparency law takes effect January 1, 2026. Here's what companies need to know about content labeling, watermarking requirements, and compliance. - [Content Licensing in 2026: What Publishers and AI Companies Should Expect](https://encypher.com/blog/content_licensing_in_2026_what_publishers_and_ai_companies_should_expect): 2025-12-30. The AI content licensing market is maturing fast. Here are our predictions for how the publisher-AI relationship will evolve in 2026, and how to position for success. - [Cryptographic Watermarking vs. AI Detection: Why Proof Beats Probability](https://encypher.com/blog/cryptographic_watermarking_vs_ai_detection_why_proof_beats_probability): 2026-01-06. AI detection tools guess whether content is machine-generated. Cryptographic watermarking proves it. - [EU AI Act Article 50: Why Single-Layer AI Marking Will Fail Compliance](https://encypher.com/blog/eu_ai_act_article_50_why_single_layer_ai_marking_will_fail_compliance): 2026-03-31. EU AI Act Article 50 compliance requires two marking layers minimum. Organizations building metadata-only or watermark-only solutions face a gap the Code of Practice makes clear. - [EU AI Act Content Disclosure: What Publishers Must Know](https://encypher.com/blog/eu_ai_act_content_disclosure_what_publishers_must_know): 2026-02-10. The EU AI Act's transparency requirements have applied since August 2, 2026. Here's what publishers and content creators need to know about AI-generated content disclosure. - [Encypher Joins C2PA Task Force: Advancing Content Provenance for AI-Generated Text](https://encypher.com/blog/encypherai-joins-c2pa-task-force---advancing-content-provenance-for-ai-generated-text): 2025-06-04. Detailing our commitment to C2PA alignment and achieving verifiable authenticity for non-structured text formats. - [How AI Training Data Scraping Works (and Why Publishers Can't Track It)](https://encypher.com/blog/how_ai_training_data_scraping_works_and_why_publishers_cant_track_it): 2025-11-18. AI models are trained on billions of web pages, including your content. Here's how the data collection pipeline works and why traditional tracking methods fail. - [How Robots.txt Fails Publishers: In-Content Rights Signals](https://encypher.com/blog/how_robots_txt_fails_publishers_the_case_for_in_content_rights_signals): 2026-03-03. txt has no legal standing as a rights reservation mechanism. A federal ruling, EU consultations, and empirical data show publishers need in-content credentials. - [Industry Veterans Call New Web Authentication Technology 'Magical' as Content and AI Companies Unite on Universal Standard](https://encypher.com/blog/industry-veterans-call-new-web-authentication-technology-magical-as-content-and-ai-companies-unite-on-universal-standard): 2025-07-21. Industry veterans hail Encypher's invisible cryptographic text signatures as a breakthrough that solves C2PA's top challenge and unites content and AI companies on a universal authentication standard. - [Model Collapse Is Coming: Why AI Companies Need Verified Training Data](https://encypher.com/blog/model_collapse_is_coming_why_ai_companies_need_verified_training_data): 2026-02-03. As AI-generated content floods the internet, models trained on synthetic data degrade. Verified human-created content becomes the scarcest and most valuable resource in AI. - [Quote Integrity Verification: Protecting Your Brand from AI Hallucinations](https://encypher.com/blog/quote_integrity_verification_protecting_your_brand_from_ai_hallucinations): 2026-01-27. ' but the quote is wrong, your brand takes the hit. Here's how quote integrity verification protects publisher reputation. - [The RAG Copyright Trap: Why Retrieval Is Not Safe Harbor](https://encypher.com/blog/rag_copyright_trap_why_retrieval_is_not_safe_harbor): 2026-02-24. RAG copyright liability exceeds training risk. The US Copyright Office, two federal rulings, and active litigation confirm retrieval creates fresh infringement at every query. - [Reddit v. Perplexity: The DMCA Ruling Publishers Are Misreading](https://encypher.com/blog/reddit_v_perplexity_the_dmca_ruling_publishers_are_misreading): 2026-08-07. Reddit's win against Perplexity is a DMCA anti-circumvention ruling. txt played no part in it. - [The AI Copyright Wars Are Here. A Technical Peace Treaty Is the Only Way Forward.](https://encypher.com/blog/the-ai-copyright-wars-are-here-a-technical-peace-treaty-is-the-only-way-forward): 2025-06-09. February 2025 marked a turning point in AI's legal landscape. S. - [The Evidence Crisis in AI Copyright Litigation](https://encypher.com/blog/the-evidence-crisis-in-ai-copyright-litigation): 2025-07-16. Courts are drowning in unreliable AI detection statistics. Cryptographic provenance offers the mathematical certainty judges demand in billion-dollar copyright battles. - [The Downstream Distribution Problem: Why Your Content Disappears After Publication](https://encypher.com/blog/the_downstream_distribution_problem_why_your_content_disappears_after_publication): 2025-11-25. Your content reaches millions through syndication, aggregators, and AI training, but the connection to your organization vanishes. Here's why this matters and what's changing. - [The EU AI Act Enforces August 2. Here's What Publishers Should Do Now.](https://encypher.com/blog/the_eu_ai_act_enforces_august_2_heres_what_publishers_should_do_now): 2026-05-12. Most publishers assume the EU AI Act is someone else's problem. That assumption is wrong. - [The Publisher's Guide to AI Content Licensing in 2026](https://encypher.com/blog/the_publishers_guide_to_ai_content_licensing_in_2026): 2026-01-20. AI companies need your content. Here's how to structure licensing deals that protect your rights, maximize revenue, and position you for the emerging AI content economy. - [The "We Didn't Know" Defense: How AI Companies Avoid Copyright Liability](https://encypher.com/blog/the_we_didnt_know_defense_how_ai_companies_avoid_copyright_liability): 2025-12-02. AI companies claim innocent infringement because they 'didn't know' whose content they scraped. Here's how this defense works, and how publishers can eliminate it. - [What If AI Content Came With Built-In Proof of Origin?](https://encypher.com/blog/what-if-ai-content-came-with-built-in-proof-of-origin): 2025-04-04. Encypher embeds invisible metadata to make AI content verifiable, tamper-proof, and trusted by default. - [What Is C2PA? A Complete Guide to Content Provenance Standards](https://encypher.com/blog/what_is_c2pa_a_complete_guide_to_content_provenance_standards): 2025-11-11. C2PA is the open standard for proving where digital content comes from. Learn how this coalition of tech giants is building the trust layer for the internet. - [What Is Willful Copyright Infringement? A Guide for Content Owners](https://encypher.com/blog/what_is_willful_copyright_infringement_a_guide_for_content_owners): 2025-12-09. Willful copyright infringement can result in damages up to $150,000 per work. Here's what content owners need to know about proving willfulness and maximizing enforcement leverage. - [Why Text Was the Missing Piece in Content Authenticity](https://encypher.com/blog/why_text_was_the_missing_piece_in_content_authenticity): 2026-01-13. Images have had provenance for years. Video and audio followed. - [EU AI Act Article 50: The Day-One Checklist for August 2nd](https://encypher.com/blog/eu-ai-act-article-50-day-one-checklist): 2026-07-28. EU AI Act Article 50 applies August 2nd, 2026. Providers and deployers need tested records of machine-readable marking, disclosures, and exceptions from day one. - [The Machine-Readable Opt-Out Standard Publishers Are Missing](https://encypher.com/blog/hamburg_machine_readable_opt_out_ruling_and_the_eu_ai_act_compliance_deadline): 2026-03-17. Machine-readable opt-outs are now the only valid AI training reservation. A German appellate ruling and EU enforcement confirm plain-text copyright notices protect nothing. - [AI Copyright Settlements Are Calculated on the Wrong Unit](https://encypher.com/blog/sentence_level_attribution_why_paragraph_level_proof_is_not_enough): 2026-03-10. AI copyright settlements pay per book while AI systems extract value per sentence. Without sentence-level provenance, every future settlement will underpay rightsholders. - [AI Licensing Moved to Marketplaces. Most Publishers Stayed in Court.](https://encypher.com/blog/the_shift_from_ai_copyright_litigation_to_licensing_marketplace_infrastructure): 2026-03-24. AI licensing revenue now flows through marketplaces requiring machine-readable provenance. Publishers without this infrastructure are invisible to the systems that would pay them. ### Company (27) - [/](https://encypher.com/): Encypher brings marking, signing, and verification into one content provenance platform for AI output and published work. Teams connect through supported APIs and publishing integrations and use the resulting technical evidence in review. - [Erik Svilich - Author of the C2PA text-provenance standard](https://encypher.com/authors/erik-svilich): Erik Svilich is Founder and CEO of Encypher and co-chairs the C2PA Text Provenance Task Force. He authored the C2PA standard for unstructured text and filed patent ENC0100 covering granular content attribution with Merkle tree authentication. - [Matt Kaminsky - Chief Commercial Officer](https://encypher.com/authors/matt-kaminsky): Matt Kaminsky is Chief Commercial Officer at Encypher. He brings 13+ years in digital media and ad-tech revenue leadership, with prior roles at Mediavine, Enthusiast Gaming, Space Cow Media, and Digimarc. - [C2PA and CAWG Validation Status Codes](https://encypher.com/c2pa/codes): Every C2PA and CAWG validation status code Encypher reports, with a plain-English explanation of each. 13 codes, grouped by success and failure. - [/c2patext-home](https://encypher.com/c2patext-home) - [/california-ai-transparency-act](https://encypher.com/california-ai-transparency-act) - [Signed example files you can verify yourself](https://encypher.com/campaign-examples): Explore text, image, audio, and video signed with Encypher C2PA Content Credentials. Download a sample and verify it free, with no account. - [Content Licensing Coalition](https://encypher.com/coalition): Opt in to earn revenue when approved partners license your signed content. You approve every deal, the majority of every coalition deal goes to you, and exact terms are in your coalition agreement. - [Company](https://encypher.com/company): Meet the Encypher team. Leaders in AI content provenance, trust, and enterprise adoption. - [Contact | Talk to Encypher](https://encypher.com/contact): Get in touch with Encypher. Publishers, AI companies, official communications teams, and enterprises can discuss signing, verification, licensing, compliance, or company rollout. - [Enterprise | EU AI Act Compliance (Encypher Mark) & Publisher Enterprise](https://encypher.com/enterprise): Two enterprise paths: EU AI Act Article 50 compliance with Encypher Mark, or publisher enterprise with signing volume, evidence package export, SSO and white-label identity, and dedicated support. Built on the C2PA text standard Encypher authored and co-chairs at the C2PA Text Provenance Task Force. - [Encypher FAQ | Content Provenance, C2PA, and EU AI Act Questions](https://encypher.com/faq): Answers about content provenance, C2PA, independent verification, rights, EU AI Act Article 50 compliance, and pricing. Each answer links to a deeper guide. - [Partners | Distribution, Infrastructure, Ad Tech, and Watermarks](https://encypher.com/partners): Partner with Encypher across publisher networks, marketplaces, CDN infrastructure, ad tech, and specialist watermarking. Bring your watermark to one public verification endpoint. - [Pricing | Start Free, Scale When You Are Ready](https://encypher.com/pricing): Three content provenance products on one verification layer: Mark signs AI output, published work, and official files. Meter brings signed sources and partner-reported AI use into one report. - [Privacy Policy](https://encypher.com/privacy): How Encypher handles personal data when providing its services. - [Chrome Extension Privacy Policy](https://encypher.com/privacy/chrome-extension): Privacy policy for the Encypher Verify Chrome extension. Details on data collection, handling, storage, and sharing. - [Authorized Supply (Ad Tech)](https://encypher.com/programmatic/demo): A guided walkthrough of publisher-authorized ad inventory: sign content at publication, bind offer terms into a listing signature, expose a substituted offer through digest binding, and read the outcome under three buyer policies. Fixed sample data, checks run in your browser. - [/resources](https://encypher.com/resources) - [System Status](https://encypher.com/status): Current operational status of Encypher services including the API, certificate authority, time stamp authority, dashboard, and chat demo. - [Subprocessors](https://encypher.com/subprocessors): The third-party subprocessors Encypher engages to provide its content authenticity verification services, and the categories of data each processes. - [Terms of Service](https://encypher.com/terms): Terms that govern use of Encypher's content provenance services. - [Trust Center Document Registry](https://encypher.com/trust/documents): Every approved public Encypher trust document, each with its version, evidence status, and review date. Drafts and internal files are not listed. - [Security Controls at Encypher](https://encypher.com/trust/security): Plain facts about the security controls Encypher runs, stated as control boundaries rather than badges. - [Support Channels and Response Policy](https://encypher.com/trust/support): Encypher support channels, response targets, and where published policy differs from contract terms. - [C2PA Content Credentials demo: mark a sample file, then check it](https://encypher.com/try/mark): Run a live C2PA demo on sample content: Encypher adds a Content Credential to a sample image or sample AI text, with an AI disclosure when the sample is AI-generated, then checks it in place. Nothing to upload, no account. - [Universal C2PA and Watermark Verification](https://encypher.com/verify): One endpoint verifies C2PA credentials and supported watermark signals across text, images, audio, and video, with conditional soft-binding recovery. - [/verify-api](https://encypher.com/verify-api)