C2PA Digital Signatures
Industry-standard Content Credentials that prove authenticity and provenance of your images.
- Cryptographic signatures embedded in images
- Tamper-evident protection
- Chain of custody tracking
- Compatible with major platforms
CredLink provides a complete suite of tools for image authenticity, from cryptographic signing to universal verification and analytics.
Industry-standard Content Credentials that prove authenticity and provenance of your images.
Our proprietary soft binding survives common image transformations like compression and resizing.
Anyone can verify your images through our public verification portal - no account required.
RESTful API with comprehensive SDKs for seamless integration into your workflow.
Track verification attempts, geographic distribution, and usage patterns in real-time.
Industry-standard security controls with end-to-end encryption.
From newsrooms to e-commerce, CredLink adapts to your specific needs.
Prove the authenticity of photojournalism and combat misinformation.
Verify product images and build customer trust.
Create tamper-evident records for legal proceedings.
Protect your work and prove original ownership.
CredLink implements the Coalition for Content Provenance and Authenticity (C2PA) standard, ensuring your signed images are compatible with a growing ecosystem of tools and platforms.
PKI-based signing with X.509 certificates
Any modification to the image invalidates the signature
Track the complete history of edits and transfers
{
"claim_generator": "CredLink/1.0",
"title": "verified-image.jpg",
"assertions": [
{
"label": "c2pa.actions",
"data": {
"actions": [
{
"action": "c2pa.created",
"when": "2025-01-24T18:49:00Z",
"softwareAgent": "CredLink Platform"
}
]
}
}
],
"signature": {
"alg": "ES256",
"issuer": "CredLink CA"
}
} Traditional embedded metadata gets stripped by social media platforms and CDNs. Our remote manifest technology stores authenticity proof externally, linked by content hash, so verification works no matter how the image is processed.
95%+
Survival rate after social media upload
100%
Survival after CDN optimization
90%+
Compression survival rate
<100ms
Verification lookup time
Embedded Only
Stripped by 90%+ of platforms
Remote Manifest
Survives any processing
Remote manifests use perceptual hashing to match images even after compression, resizing, and format conversion. The original proof is stored on our globally distributed infrastructure.
Every feature in CredLink is accessible via our RESTful API. Sign images at upload time, verify on demand, and integrate authenticity into your existing workflows.
# Sign an image
curl -X POST https://api.credlink.io/v1/sign \
-H "Authorization: Bearer $API_KEY" \
-F "file=@image.jpg" \
-F "mode=remote"
# Response
{
"success": true,
"documentId": "doc_abc123",
"manifestUrl": "https://verify.credlink.io/doc_abc123",
"hash": "sha256:e3b0c442..."
} Join thousands of organizations protecting their visual content with CredLink.
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