I was thinking about this topic and I think op should implement his provably fair system on some demo casino. That way would be easier to explain to casinos how does the New provably fair system works.
I could help on this, I have a casino software with 4 games, if you want send me a PM and we ca find the way to works together.
This is not a bad idea. OP has shown a willingness to put their money where their mouth is (although without funds being escrowed it is just words). I doubt many large casino executives care about $2500 though. That may be a big amount of money for you or I, but to someone with millions coming in, it honestly probably isn’t an incentive. Going at it along and building a player base might be the best way forward.