sha256sum

Comment (metadata comment)

find . -type f \( -iname *.jpg -o -iname *.jpeg -o -iname *.png \) -exec sh -c 'exiftool -Comment=$(sha256sum $1 | awk {print \$1}) $1' _ {} \;

XMP (metadata)

find . -type f \( -iname \*.jpg -o -iname \*.jpeg -o -iname \*.png \) -not -path '*/.*' -exec sh -c 'hash=$(sha256sum "$1" | awk "{print \$1}"); exiftool -XMP-dc:Identifier="$hash" "$1"' sh {} \;

Verify

Comment:

exiftool -Comment image.jpg

XMP:

exiftool -XMP -b *.jpeg

look inside dc:identifier for the hash

<dc:identifier>hashvalue</dc:identifier>

All should be done before uploading to your radicle repo for images.

also be sure to check the thread on partychan:

https://chan.kemono.party/coomer/res/9766.html

https://archive.ph/2BaoE

Edit

Pub: 28 Feb 2026 17:20 UTC

Edit: 28 Feb 2026 18:05 UTC

Views: 6