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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 424 190

  2. c2pa-python c2pa-python Public

    Python binding for c2pa-rs library

    Python 105 34

  3. c2pa-cpp c2pa-cpp Public

    C++ binding for C2PA

    C++ 17 14

  4. c2pa-js c2pa-js Public

    TypeScript 35 25

  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-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 424 190 131 53 Updated Sep 24, 2026
  • c2patool Public

    Command line tool for displaying and adding C2PA manifests

    contentauth/c2patool's past year of commit activity
    Rust 136 Apache-2.0 43 2 12 Updated Sep 24, 2026
  • c2pa-python Public

    Python binding for c2pa-rs library

    contentauth/c2pa-python's past year of commit activity
    Python 105 Apache-2.0 34 1 2 Updated Sep 23, 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
  • c2pa-swift Public

    C2PA SDK for Swift (iOS/macOS)

    contentauth/c2pa-swift's past year of commit activity
    Swift 25 Apache-2.0 13 4 2 Updated Sep 24, 2026
  • c2pa-android Public

    C2PA SDK for Android

    contentauth/c2pa-android's past year of commit activity
    Kotlin 12 Apache-2.0 5 6 7 Updated Sep 24, 2026
  • c2pa-js Public
    contentauth/c2pa-js's past year of commit activity
    TypeScript 35 MIT 25 6 4 Updated Sep 24, 2026
  • contentauth/c2pa-conformance-tool's past year of commit activity
    TypeScript 5 7 7 3 Updated Sep 23, 2026
  • c2pa-raw-crypto Public

    Raw cryptographic signing and validation primitives for C2PA

    contentauth/c2pa-raw-crypto's past year of commit activity
    Rust 0 Apache-2.0 0 0 8 Updated Sep 23, 2026
  • c2pa-attacks Public

    Content Authenticity Security Tool

    contentauth/c2pa-attacks's past year of commit activity
    Rust 15 Apache-2.0 4 5 5 Updated Sep 22, 2026