Skip to content
@contentauth

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:

Pinned Loading

  1. c2pa-rs c2pa-rs Public

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

    Rust 445 205

  2. c2pa-python c2pa-python Public

    Python binding for c2pa-rs library

    Python 108 39

  3. c2pa-cpp c2pa-cpp Public

    C++ binding for C2PA

    C++ 17 14

  4. c2pa-js c2pa-js Public

    TypeScript 40 30

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

    Node.js bindings for C2PA v24 API

    Rust 11 11

Repositories

Showing 10 of 42 repositories
  • c2pa-swift Public

    C2PA SDK for Swift (iOS/macOS)

    contentauth/c2pa-swift's past year of commit activity
    Swift 27 Apache-2.0 14 4 2 Updated Nov 11, 2026
  • c2pa-js Public
    contentauth/c2pa-js's past year of commit activity
    TypeScript 40 MIT 30 9 9 Updated Nov 11, 2026
  • cimpl Public

    A safe way to expose complex Rust code via C_FFI

    contentauth/cimpl's past year of commit activity
    Rust 0 Apache-2.0 0 0 5 Updated Nov 11, 2026
  • opensource.contentauth.org Public

    Open source documentation site

    contentauth/opensource.contentauth.org's past year of commit activity
    JavaScript 2 27 7 4 Updated Nov 11, 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 445 205 165 138 Updated Nov 11, 2026
  • asset-io Public

    High-performance streaming JUMBF and XMP I/O for media files

    contentauth/asset-io's past year of commit activity
    Rust 2 Apache-2.0 0 0 3 Updated Nov 10, 2026
  • c2pa-python Public

    Python binding for c2pa-rs library

    contentauth/c2pa-python's past year of commit activity
    Python 108 Apache-2.0 39 5 6 Updated Nov 10, 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 1 9 7 Updated Nov 10, 2026
  • c2patool Public

    Command line tool for displaying and adding C2PA manifests

    contentauth/c2patool's past year of commit activity
    Rust 167 Apache-2.0 45 4 13 Updated Nov 10, 2026
  • c2pa-attacks Public

    Content Authenticity Security Tool

    contentauth/c2pa-attacks's past year of commit activity
    Rust 15 Apache-2.0 4 5 3 Updated Nov 10, 2026