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This is HN; you are supposed to point out (like some people have in this thread about the leading 000 count) the incorrect parts, providing some links or explanation why they are incorrect. Many people probably clicked here to learn something and so it's helpful to point out what they should be learning instead of this if it is 'incorrect'.

(author here) I'd love to know the inaccuracies so I can address it. Generally I tried to simplify things to make it easy to follow in code. Anything worth noting can be added and I've done this with some things brought up in this thread. I'd love to do the same with your suggestions.

I already qualify for the "blockchain expert" tag by working in the space for 2 years, though I don't find it that desirable. Maybe a few years ago.

Could you give some examples of what is incorrect?