If I knew how to build a CDN that worked for this I probably would take a crack at it. Maybe more an Instagram thing with the quality & features of Flickr though?

start here:

See I kinda have? I didn't use that implementation, this was a project from a while ago; cdnat.hayden.moe/img/did:plc:... The problem is that verifying the CIDs and such isn't feasible when the image has already been transformed, like if you're using CloudFlare Images.

verify in the worker prior to transformation!

That feels a little inefficient unless I’m misunderstanding how the CIDs work, wouldn’t that mean I’d have to pull the blob off the PDS twice? Assuming I stick with CF Images that is. Once for verification and again with transformations?