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Content Authenticity Initiative

Content Authenticity Initiative logo

The Content Authenticity Initiative (CAI) is a cross-industry community of major media and technology companies, civil organizations, and many others. Adobe founded CAI in 2019 and continues to lead it. The CAI develops open-source tools for verifiably recording the provenance of digital media, including content made with generative AI. The community's mission is to support broad adoption, making content authenticity and transparency scalable and accessible.

Our open-source efforts include:

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  1. c2pa-rs c2pa-rs Public

    Rust SDK for the core C2PA (Coalition for Content Provenance and Authenticity) specification

    Rust 424 193

  2. c2pa-python c2pa-python Public

    Python binding for c2pa-rs library

    Python 105 35

  3. c2pa-cpp c2pa-cpp Public

    C++ binding for C2PA

    C++ 17 14

  4. c2pa-js c2pa-js Public

    TypeScript 35 27

  5. c2pa-node-v2 c2pa-node-v2 Public archive

    Node.js bindings for C2PA v24 API

    Rust 11 11

Repositories

Showing 10 of 39 repositories
  • c2pa-js Public
    contentauth/c2pa-js's past year of commit activity
    TypeScript 35 MIT 27 5 6 Updated Sep 28, 2026
  • c2pa-python Public

    Python binding for c2pa-rs library

    contentauth/c2pa-python's past year of commit activity
    Python 105 Apache-2.0 35 1 2 Updated Sep 28, 2026
  • c2pa-rs Public

    Rust SDK for the core C2PA (Coalition for Content Provenance and Authenticity) specification

    contentauth/c2pa-rs's past year of commit activity
    Rust 424 193 133 53 Updated Sep 28, 2026
  • c2patool Public

    Command line tool for displaying and adding C2PA manifests

    contentauth/c2patool's past year of commit activity
    Rust 137 Apache-2.0 43 2 13 Updated Sep 28, 2026
  • c2pa-android Public

    C2PA SDK for Android

    contentauth/c2pa-android's past year of commit activity
    Kotlin 13 Apache-2.0 6 6 6 Updated Sep 28, 2026
  • c2pa-swift Public

    C2PA SDK for Swift (iOS/macOS)

    contentauth/c2pa-swift's past year of commit activity
    Swift 26 Apache-2.0 13 5 2 Updated Sep 27, 2026
  • opensource.contentauth.org Public

    Open source documentation site

    contentauth/opensource.contentauth.org's past year of commit activity
    JavaScript 2 24 7 1 Updated Sep 27, 2026
  • contentauth/c2pa-conformance-tool's past year of commit activity
    TypeScript 6 8 8 3 Updated Sep 25, 2026
  • c2pa-cbor Public

    A fast, lightweight CBOR encoder/decoder used by C2PA

    contentauth/c2pa-cbor's past year of commit activity
    Rust 0 Apache-2.0 1 0 8 Updated Sep 25, 2026
  • c2pa-cpp Public

    C++ binding for C2PA

    contentauth/c2pa-cpp's past year of commit activity
    C++ 17 Apache-2.0 14 1 1 Updated Sep 24, 2026