C2PA Specifications Overview
本頁內容尚未翻譯。
The C2PA specification defines the technical standard for content provenance and authenticity.
Latest Version: 2.2
Section titled “Latest Version: 2.2”The current version of the C2PA specification is v2.2, released in May 2025.
Available Languages
Section titled “Available Languages”Download the specification in your preferred language:
| Language | Download | Status |
|---|---|---|
| 🇬🇧 English | C2PA Specification 2.2 | Official |
| 🇨🇳 简体中文 | C2PA 规范 2.2 | Beta (AI-translated) |
| 🇯🇵 日本語 | C2PA 仕様 2.2 | Beta (AI-translated) |
| 🇩🇪 Deutsch | C2PA Spezifikation 2.2 | Beta (AI-translated) |
| 🇫🇷 Français | Spécification C2PA 2.2 | Beta (AI-translated) |
Translation Notice: Non-English translations are AI-assisted (DeepL) with community review. The English version remains the authoritative reference.
Key Sections
Section titled “Key Sections”The C2PA specification covers:
1. Core Concepts
Section titled “1. Core Concepts”- Manifests and Claims
- Assertions and Evidence
- Cryptographic Signatures
- Trust Model
2. Technical Implementation
Section titled “2. Technical Implementation”- File Format Integration
- Metadata Structure
- Signing and Verification
- Certificate Requirements
3. Supported Media Types
Section titled “3. Supported Media Types”- Images (JPEG, PNG, WebP, AVIF)
- Video (MP4, MOV, WebM)
- Audio (MP3, WAV, AAC)
- Documents (PDF - in progress)
4. Advanced Features
Section titled “4. Advanced Features”- Ingredient Relationships
- Redaction and Privacy
- Hard Bindings
- Soft Bindings
Online Resources
Section titled “Online Resources”Version History
Section titled “Version History”| Version | Release Date | Key Changes |
|---|---|---|
| 2.2 | May 2025 | Current version |
| 2.1 | January 2025 | Enhanced privacy features |
| 2.0 | September 2024 | Major revision |
| 1.x | 2023 | Initial release |
Getting Help
Section titled “Getting Help”Next Steps
Section titled “Next Steps”- Read the Quick Start Guide
- Explore Tools & Libraries
- Join the Community