experimental hub is happy to introduce you the #Hubzilla
Photo Cache addon.
It was developed for a better level of anonymity for our users, as well as to increase the overall security level of the network.
It caches and stores a local copy of images from non Zot networks so other sites can not track who exactly and when browse this image. Now it works only for images with more than 480 px size but later we hope to provide you ability to tune this setting.
Photo cache works by per channel basis so if you will decide to use it please visit App Collections
install "Photo Cache" addon and enable caching for your channel.