Bitmessage is a P2P communications protocol used to send encrypted
messages to another person or to many subscribers. It is
decentralized and trustless, meaning that you need-not inherently
trust any entities like root certificate authorities. It uses
strong authentication which means that the sender of a message
cannot be spoofed, and it aims to hide "non-content" data, like
the sender and receiver of messages, from passive eavesdroppers
like those running warrantless wiretapping programs.
https://github.com/Bitmessage/PyBitmessage/issues
https://bitmessage.org/wiki/PyBitmessage_Help
Bitmessage/PyBitmessage