Jihan exactly knows how much hashpower they do have in total.
::*ahem!*:: Speculation based solely upon allegations not yet entered into evidence. By what mechanism do you think Jihan knows their total hash power?
Craig Wright said they bought the machines from Jihan and it was the majority of Bitmain sales during Q1. I assume Jihan knows how much they sold and its combined hashpower.
Did he say that that was all the hashpower they acquired? Or merely that they acquired the majority of Bitmain's Q1 output? Two different things.