Practical guide for using Membrane Proof

[mattyg]

Must include:

• code examples
• practical, terse explanation of how to use
• gotchas

• Signals
  • Local signals to UI
  • Remote signals to peers on same DHT
    • needs cap grant on recv_remote_signal
    • (future) pub/sub to replace most use cases for remote signals
  • not supported between zomes or between cells :(

Possible topics to cover:

• Membrane proof
  * Genesis self-check -- not a 'true' validation function, just a way to guard yourself against copy/paste mistakes and other things that can permanently hose your chance of joining a network
  * (future) Handled specially -- restricts/grants access to a network; validated at handshake time (turns out this is not currently implemented, and there are questions about how to implement it in a way that doesn't carry a performance hit with each new peer connection -- and there may be lots of them in a big heavily sharded DHT)
  * AgentValidationPkg is the only action for which an honest person can get warranted, because they try to join the network and publish it before they're able to fetch deps