In a world of AI image generation I don't want a central service that decides that an image is "close enough" to the original. I want exactly the original image that the author intended. Cryptographically Identified by the hash.
instead of using a hash to find images you should use a lower resolution version of same image to find the full resolution version. even Bing image search has a feature where it will automatically show you different "image sizes" for the same image, for example the following are different sizes grouped by Bing


a truly smart system wouldn't even save the image but simply find the highest quality version of it on the web and save just the address.
i tag nostr:npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6 because he appears to capable of understanding my brilliant ideas.
Discussion
you remind me of people in early days of Mp3 who said the quality wasn't good enough because the compression was lossy.
the same folks also said that you need $10,000 cables to get good sound quality.
and then blind tests revealed none of them could hear a difference between a $10,000 cable and a steel wire clothes hanger used as a cable.
does anybody still buy compact discs or use FLAC files ?
This is the main reason for the sha256 hash being in the URL. that way if you include it in a note and sign the note you are signing the hash and there for proving which version you wanted to post