ShieldSnap

ShieldSnap Lab

In-app purchases

About this app

Your photos are shared, copied, and republished every day. If someone uses them without your permission, how do you prove they're yours?

ShieldSnap certifies your photos with 3 layers of DCT watermarks invisible to the human eye but digitally detectable, plus a verifiable ECDSA digital certificate:

ANTI-DEEPFAKE — If your photo is used to generate deepfakes, you can prove the original is yours with verifiable evidence.

ANTI-SCRAPING — The watermark remains embedded in the frequency domain even after downloading and recompressing. Your photo remains identifiable.

ANTI-REPUBLICATION — If your photo is republished without permission, the watermark allows the original to be traced back. Concrete evidence for DMCA.

HOW IT WORKS:
1. Take a photo or choose one from the gallery
2. ShieldSnap applies the 3 levels of DCT certification
3. Receive the certified photo + PDF digital certificate

WATERMARK RESISTANCE:
Watermarks with 8x redundancy and majority voting remain traceable after:
• JPEG compression up to Q20
• Screenshot
• Resize up to 33%
• Upload to Instagram, WhatsApp, Facebook
• Cropping up to 20%

VERIFIABLE DIGITAL CERTIFICATE:
Each certified photo includes:
• SHA-256 image hash
• ECDSA digital signature
• Certified timestamp
• GPS coordinates
• Device information
Valid as evidence for DMCA requests.

PUBLIC VERIFICATION:
Anyone can verify the authenticity of a certified photo at shieldsnap.cloud/verify — upload the photo and the system automatically detects the watermark.

COMING SOON:
Qualified eIDAS digital signature through Aruba with legal value recognized throughout the European Union.

PRIVACY AND SECURITY:
• Photos are processed on the server and never stored
• HTTPS/TLS encrypted connection
• No tracking, no advertising
• GDPR compliant (EU Regulation 2016/679)

Download ShieldSnap and certify your photos today.

Your photos, your proof.