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JEEZITSFAKE
"Yeah. We checked."
Cryptographic image authentication embedded in the pixels. No server. No metadata. No trust required.
Jeezitsfake stamps a cryptographic proof directly into the image at capture time.
The proof is invisible, tamper-evident, and verifiable by anyone — offline.
If the image has been modified in any way, verification fails. Honestly.
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Cryptographically Signed
Ed25519 signature tied to the device. Impossible to forge without the private key.
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Invisible Embedding
Proof is hidden in DCT coefficients. Visually imperceptible. No watermark.
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Fully Offline
No server, no database, no third party. Verification works anywhere, anytime.
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Tamper Evident
Any modification — edit, re-encode, screenshot — is detected and reported.
Try the Demo
Upload a JPEG to stamp it, then verify it.