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@silverpill

Nice thing about FROST is that it already works with did:key with Ed25519, since signatures and public keys are compatible. secp256k1/secp256r1 are not, since FROST is Schnorr signature based rather than ECDSA.

As far as the gap goes, IMO that's where crash fault tolerant consensus algorithms (Paxos, Raft, etc) fit in. Non-POW Byzantine fault tolerance tends to be tied to Shitcoinery because the systems only allow up to < 1/3rd of the participants being malicious (2f + 1 need to be non-Byzantine), and the "best" way that's been found is economic incentives.

The original PBFT paper/research from 1999 used a NFS file-server implementation as the practical example, but "people are assholes, and someone will spin up a mountain of nodes" isn't something that was in-scope when they did the research.