I love how those openings lists super serious requirements but rarely states how much much it pays. You realize that professional with the skills you listed will not ask you for less then 100 000$/year ? I mean you are offering 5 step interview - that is some google level stuff. I hired many devs in my time and learned - to hunt a professional I need to tell him what he gets clearly and maybe even before telling him what I ask for.
Actually, even in my previous industry, was frustratingly difficult to find a transparent wage level and I haven't seen any different in computer engineering. That said, the levels of competency in this really new, really saturated blockchain sphere seem to be much lower than I'd been given to expect. Outside of Bitcoin, only a handful are available and mostly spoken for. I suspect this is why you've got people coming here trying to headhunt CTOs on the forum.
Japan it seems is even hiring people without degrees, just sending them for open courses. I've seen now several projects with CTOs having next to no qualifications with very few projects under their belt. This is what's called opportunity, though, isn't it?