HEE-QR(1)                        User Commands                       HEE-QR(1)

NAME
       hee-qr - reader for a mt-logo-render "hee-key hole" anchor

SYNOPSIS
       hee qr IMAGE
       hee qr IMAGE -manifest PATH

DESCRIPTION
       SHA256 is one-way by design -- there is no reversing a hash back to the
       recipe that produced it, and guessing an image's parameters back out of
       its  pixels  via  computer  vision is not proof. So a mt-logo-render(1)
       output carries its own real receipt instead:  a  scannable  QR  encoded
       into the image's own pixels, and matching PNG text-chunk metadata.

       hee-qr  tries  the  real  QR scan first (via zbarimg, survives any for‐
       mat/bit-depth change since it's pixels, not metadata), then falls  back
       to reading the PNG metadata directly.

OPTIONS
       IMAGE  Path to a PNG rendered by mt-logo-render.

       -manifest PATH
              Instead  of just printing the result, write/update an entry in a
              static {recipe_id: recipe} JSON manifest at  PATH  --  the  data
              file  a static lookup page (no backend needed) reads client-side
              by hash.

EXAMPLES
              hee qr hee-logo.png
              hee qr hee-logo.png -manifest /srv/mt-logo/manifest.json

OUTPUT
       JSON: {"source": qr-scan |"png-metadata", recipe_id : ...  ,  recipe  :
       {...}} -- or a real error if neither anchor is found.

ORGANIZATION
       Twin Cities Open Systems - Operations LLC
       IANA Private Enterprise Number: 1.3.6.1.4.1.66550

SEE ALSO
       mt-logo-render(1)

HEE                               2026-08-22                         HEE-QR(1)