I don’t care to jump into the debate about anti-AI art or not; mostly because the topic is extremely vast and it depends on the model used, who made the model, what training sets were used, how they were acquired, etc. amongst various other things to determine potential legality troubles.
I will say though, it is not a hash- if you are using it in the technological sense. I couldn’t tell if you were using it colloquially, or in the IT Professional sense, but I just wanted to clarify this. It couldn’t possibly be a hash; the most notable models that people talk about are trained on billions of images. The amount of data it would take to hash that would require way too much data storage and processing power to be a functional model.
Usually these AI models (at least the ones that people talk about anyways) consist of multiple neural networks; while I haven’t worked with AI, using some of my background knowledge, my guess would be that the neural networks used in these AI art models would just be weighted graphs.