[catlifeonmars]

Looks like a strategy for storing a secret across multiple servers such that no single node compromise will result in the secret being compromised.

My read is that this adds network topology as an input to what is normally just M out of N secret sharing without any consideration for topology.

I just skimmed the paper so take it with a grain of salt.

[SweetSoftPillow]

Sounds like Telegram's storage strategy, at least they promised it works like that.