I guess you didnt look at the link I posted. Crypto puzzles are solved automatically by the app without human involvement, no semaphores and no busses.

Oh excuse my ignorance 🙂 I did check it but the pow can easily be manipulated if set to easy. If set to too difficult, we all have a problem with posting. What this is doing is just randomly guessing numbers and when hitting one with enough 0s then it's a pass and this can easily be manipulated.