https://gssc.esa.int/navipedia/index.php/GPS_Time_and_Frequency_Transfer_Techniques
https://unix.stackexchange.com/questions/391977/how-to-get-different-ips-on-cloned-machines-with-virtualbox
import hashlib def msg_to_int(msg: str): return int(hashlib.sha256(msg.encode()).hexdigest(), 16) P_recovered = k_inv * C m_recovered ...