Using the C2PA Extension

Tags:
Categories:

  3 minute read  

Using the YouSeddit C2PA Browser Extension

The YouSeddit C2PA Browser Extension helps you verify the authenticity of content across the web, with special capabilities for verifying text quotes against our blockchain ledger.

Installation

  1. Visit the Chrome Web Store
  2. Click “Add to Chrome”
  3. Confirm the installation when prompted
  4. The YouSeddit C2PA icon will appear in your browser toolbar

Understanding C2PA Content

The Content Authenticity Initiative (CAI) and the Coalition for Content Provenance and Authenticity (C2PA) have created standards for verifying digital content. Look for these indicators:

  • C2PA Badge: Shows that content has verifiable provenance information
  • Youseddit Badge: Indicates blockchain-verified content with smart contract authorization

Verifying Content

Images and Videos

The extension automatically verifies C2PA-enabled images and videos:

  1. C2PA-enabled media will display a small verification icon in the corner
  2. Click the icon to view detailed provenance information
  3. For Youseddit-enhanced C2PA content, you’ll also see blockchain verification details

Text Quotes

For text quotes with C2PA verification:

  1. Quotes with C2PA verification will be highlighted with subtle indicators
  2. Click on the indicator to view verification details including:
    • Source information
    • Blockchain verification status
    • Smart contract details for the domain

Verification Status Indicators

The extension uses consistent indicators across content types:

  • ✅ Green Checkmark: Content is verified and the domain has proper authorization
  • ℹ️ Blue Info: Standard C2PA content without YouSeddit blockchain verification
  • ⚠️ Yellow Warning: Content is verified but domain has licensing issues
  • ❌ Red X: Content claims C2PA verification but fails validation

Verification Details

When you click on a verification indicator, a panel appears showing:

C2PA Verification Panel

  1. Content Information

    • Type of content (image, video, text quote)
    • Creation date and time
    • Source details

  2. C2PA Provenance

    • Creation and edit history
    • Software used
    • Cryptographic signatures

  3. Blockchain Verification (for YouSeddit content)

    • Blockchain transaction ID
    • Verification timestamp
    • Content hash

  4. Smart Contract Status (for YouSeddit content)

    • License type (exclusive/non-exclusive)
    • Contract expiration date
    • Domain authorization status

Extension Settings

Access settings by clicking the YouSeddit C2PA icon in your browser toolbar:

Verification Options

  • Verification Mode: Choose between automatic or on-demand verification
  • Verification Display: Control how verification indicators appear
  • C2PA Types: Select which types of C2PA content to verify (images, videos, text)

Display Preferences

  • Icon Style: Choose between different indicator styles
  • Panel Position: Set where verification panels appear
  • Details Level: Basic or advanced information display

Privacy Settings

  • Cache Duration: Control how long verification results are stored
  • Local Storage: Manage what data is stored on your device
  • Telemetry: Enable/disable anonymous usage statistics

Understanding Quote Verification

When verifying text quotes, the extension checks several factors:

  1. Text Match: Confirms the quoted text matches the verified source
  2. Context Preservation: Ensures the quote maintains original context
  3. Domain Authorization: Verifies the website has rights to use the quote
  4. Attribution: Checks that proper attribution is provided

Quotes may receive partial verification if they meet some but not all criteria.

Troubleshooting

If you encounter issues with the extension:

  1. Verification Not Working

    • Check if the content actually contains C2PA metadata
    • Ensure you have a stable internet connection
    • Try disabling other extensions that might interfere

  2. Content Not Recognized

    • Some text quotes may not be formatted in a way the extension can detect
    • Try clicking the extension icon and using the manual verification option

  3. Performance Issues

    • Adjust settings to verify content on-demand rather than automatically
    • Reduce the cache duration if storage is a concern

Reporting Issues

To report verification problems or potential misuse:

  1. Click the C2PA verification icon in the content
  2. Select “Report an Issue” in the verification panel
  3. Choose the appropriate issue type and provide details
  4. Submit the report to the YouSeddit team

Privacy and Security

The YouSeddit C2PA extension:

  • Does not track your browsing history
  • Only analyzes C2PA content on pages you visit
  • Does not collect personal information
  • Stores verification results locally by default
  • Never modifies webpage content

For more information about privacy, see our Privacy Policy.

Last modified July 6, 2025: Update deploy.yml (d65b9c1)