I'd thought you'd like to know that your investigations into hash
functions have come up on Shadertoy:
https://www.shadertoy.com/view/WttXWX

Keep up the good work.

This is very interesting, thanks! I didn't think these 32-bit integer 
operations were practically on the table for WebGL, but this proves 
otherwise. I'm glad to see that it actually works. I've updated my 
article with links to these Shadertoy experiments.