Nevermind, asked someone on a Discord who is more familiar with ML than me. Also, checked a few resources online. As far as I can tell there aren't any traces of the original dataset in Stable Diffusion. There aren't even partial examples of the dataset in there according to the person I talked to. Maybe they're wrong, but I suspect they are right. I did read there is a dictionary for CLIP, but that's a bunch of words that Stable Diffusion can recognize and not saved artwork.
Disclaimer: Not an ML expert