[Deliverable] Service Incentivisation - Pay for RLN provision PoC

[chair28980]

Proof of concept of paying for RLN provision to a light client by a service node.

A POC payment mechanism that incorporates PoC versions of the three Waku service marketplace elements:

• a price offer/negotiation mechanism
• a proof of payment system
• a local reputation mechanism to distinguish between "good" and "bad" service nodes

Such a PoC would enable discussion with the Status app team on a potential way to provide a paid tier to 1:1 chats users.

[Ivansete-status]

Where should the PoC be implemented?
I see the need of creating a new protocol, a.k.a., marketplace protocol so that the three points mentioned in the description are covered. wdyt @chair28980 , @jm-clius , @fryorcraken ?

[jm-clius]

For now the plan is to implement the POC as part of lightpush (behind a feature flag, of course).

[fryorcraken]

@jm-clius what is the status for this deliverable? What is remaining?

[jm-clius]

@s-tikhomirov can confirm, but roughly what is missing from my POV:

1. some service verification on client side
2. mechanism on service side to prevent simple attack, like double spending
3. local reputation mechanism (client side)
4. integration within lightpush
5. dogfooding/testnet

The current in progress item is exactly to map out the rest of the POC