demo: share 1 + share 2 = secret
split an image into 2 shares that look like random noise. when you overlay them, the original image appears. works digitally or with physical printed transparencies.
demo: share 1 + share 2 = secret
100% client-side. your images never leave your browser.
upload a black and white image (or itll be converted). works best with high contrast images like qr codes.
upload both shares to reveal the hidden image.
this uses optical splitting. each pixel in the original image becomes a 2x2 block in each share:
when overlaid, white stays white (patterns align) and black becomes black (patterns fill in). each share alone looks like random noise.
you can print the shares on transparent sheets and physically overlay them. no computer needed to reveal the secret.
you just saw how a secret can be split and hidden in plain sight. deadhand protocol uses the same high-entropy math to protect your seed phrases, private keys, and family's future.
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