Verify Image — Image Authenticity Platform

Signer Information

Hash Details

The hash stored at signing time is compared against the hash computed now from the current image pixels. A SHA-256 mismatch means even a single pixel changed. pHash/dHash tolerance allows for minor compression differences.

Understanding Your Result

AUTHENTIC RSA signature is valid, pixel hash matches exactly, and invisible watermark is intact. This is the original, unmodified file exactly as it was signed.

LIKELY SCREENSHOT Signature is valid and content looks similar, but the invisible watermark is gone — the image was probably screenshotted or re-exported, not shared as the original file.

MODIFIED RSA signature is valid (signer is real) but the pixel hash has changed — the image was edited, filtered, cropped, or manipulated after it was signed.

TAMPERED The RSA signature does not match — the metadata (creator name, email, timestamp, AI rights) was altered after signing. The image is not what it claims to be.

UNSIGNED No MetaImageUp signature was found. The image has never been signed with MetaImageUp, so authenticity and AI rights cannot be verified.

AI Rights Reads the signed AI rights assertion from the manifest. If TAMPERED, the AI rights claim cannot be trusted.

Step 3 — Verify Image Authenticity

Signer Information

Hash Details

Understanding Your Result

Support MetaImageUp