Your users seem to map to a set of permissions on a distibuted filesystem. Or a git repository.
However, there's no description of your constraints or requirements. The words 'cryptography' or 'secure' do not appear in the question. Is the protocol destined to run on a local network with well-behaving agents?
In reply to Re: [OT] Merging messages between users on different machines
by Anonymous Monk
in thread [OT] Merging messages between users on different machines
by Anonymous Monk
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