Article 50 enforceable soon
EU AI Act · Article 50

AI content compliance,
with cryptographic proof.

Sentinel labels, certifies and verifies your AI-generated images, video and synthetic media for EU AI Act Article 50 and California SB 942 — and gives you signed proof you complied. Upload, and you're done.

Try it free → Verify a certificate
INDEPENDENT · CRYPTOGRAPHIC · VERIFIABLE BY ANYONE
✓ Patent filed — UK IPO 2026 ✓ RSA-PSS-SHA256 signed ✓ C2PA / XMP machine-readable ✓ Powered by the TBN Protocol
✓
Certificate verified This content is disclosed, signed and tamper-evident.
Certificate IDtbn_cert_8f31a7c2…
Content hashsha256:8f31a7c2…9b7d
AlgorithmRSA-PSS-SHA256
StandardC2PA / XMP
FrameworksArt.50 · SB 942
StatusVERIFIED
AI
campaign-image.jpg
2.4 MB · AI-GENERATED label embedded
Anyone can verify this independently ↗
✓
Article 50 ReadyEU AI Act
◇
C2PA / XMPMachine-readable
⌂
RSA-PSS-SHA256Signed proof
↗
Public verifyAnyone can check
✣
TBN ProtocolThe trust engine
Why it matters

A label isn't enough. Evidence is required.

From 2 August 2026, EU law says AI content must be disclosed — visibly and in a machine-readable way. A visible label alone can be copied, removed or faked. Sentinel ties the label, the hidden metadata and a signed certificate to the exact file, so it's provable.

♻

Was it AI-generated?

We scan the content and detect synthetic media with a confidence score.

◇

Was it labelled right?

We apply the visible label and embed the C2PA / XMP machine-readable mark.

▢

Has the file changed?

The certificate is bound to the file's hash — any edit breaks the proof.

◎

Can a regulator verify?

Yes — independently, with no need to trust us or you. That's the point.

In plain English

What Article 50 asks of you

If your business shows AI-made content to the public, you must tell people it's AI — in two ways. Sentinel handles both, automatically.

👁

1. A label people can see

A clear, visible "AI-GENERATED" mark on the content — so a human knows at a glance.

🔎

2. A tag machines can read

Hidden provenance data inside the file (C2PA / XMP) so platforms and regulators can detect it automatically.

How it works

From upload to verified proof — 5 simple steps

No C2PA knowledge, no metadata editing, no consultant. You upload; we do the rest.

1

Upload

Drop in your image or paste a media URL.

2

Scan

Sentinel checks the content for AI signals.

3

Mark

We add the visible label + machine-readable disclosure.

4

Sign

A cryptographic certificate is created and signed.

5

Verify

Download your compliant file — anyone can verify it.

Try it free

See it work on your own content

Upload an image or paste a URL. We scan it, apply the disclosures if needed, and show you the signed certificate. No signup.

Click to choose an image, or drag it here
Or paste a direct link to an image file (not your website address)
How should we handle it?
✓ I know it's AI Label & certify it now — the reliable path for content you made with AI
Auto-detect AI Not sure? We'll scan and decide for you
Self-declare: you confirm it's AI — we burn the visible label, embed the machine-readable mark, and show the result.
Free preview only — you'll see the labelled result, but the downloadable compliant file and the real certificate number + signed proof are issued on a paid plan.
Compliant content
Signed certificate

          

        

      

      


      

        
        
        
We'll find every image and video on the page and list them by name. You tell us which are AI — we record and certify your declaration. We don't guess; you declare.

        
        
        

      


      

        
        
Click to choose a video, or drag it here
          

        

        
        
        
We don't analyse your video — you declare it. We then burn a visible "AI-GENERATED" label onto it and embed machine-readable disclosure.

        
Free preview shows how the label will look on one frame. The fully-labelled video file + signed certificate are issued on a paid plan. Max 80 MB / 3 min.

        
        
        

      

    

  







  

    

      Verify a certificate
      
Check any Sentinel certificate

      
Paste a certificate ID to independently confirm it's genuine and unmodified.

    

    

      
      
      
      
      

    

  







  

    

      Pricing
      
Choose the plan that fits

      
Get compliant before the deadline. Disclosure travels with the file — certify once, stay compliant anywhere.

    

    

      

        
Creator

        
For individuals and creators who already know it's AI.

        
£9 /month

        
    
          
  • Up to 100 files / month
    • 
          
  • Visible AI label
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  • Machine-readable metadata (C2PA/XMP)
    • 
          
  • Signed certificate per file
    • 
          
  • Public verification
    • 
        

        
      

      

        
MOST POPULAR

        
Business

        
For teams and companies with mixed content.

        
£49 /month

        
    
          
  • Up to 1,000 files / month
    • 
          
  • AI detection scan on every image
    • 
          
  • Metadata marking & disclosure
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  • Whole-site URL scan
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  • Public verification page
    • 
          
  • Priority support
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Enterprise

        
For platforms with user-uploaded content at scale.

        
Custom

        
    
          
  • Unlimited files
    • 
          
  • Scan-at-scale API
    • 
          
  • Continuous monitoring
    • 
          
  • Hash-chained audit trail
    • 
          
  • Art.50 + SB 942 + NY SB8420 reporting
    • 
          
  • Dedicated support & SLA
    • 
        

        Contact sales
      

    


    

      
Make AI content provable, not just labelled.

      
Build transparency and trust into the AI era — before the 2 August deadline.

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