I've been thinking about "blind" staking — staking mechanisms that allow stakers to retain some amount of privacy.
It's a fun problem. Stakers deposit funds into some sort of anonymity pool. Stakers then prove they are in the pool as of some height, and are "eligible" for whatever the staking enables.
There's a wide pool design space. In a system like @keep_project, the funds don't need to be able to be transferred within the pool. They do, however, need to able to be burned by objective rules enforced across the pool.
In that case, the pool only needs to support proof of inclusion, or perhaps range proofs for staked amounts.
A design like that helps impede passive monitoring of the chain, but what about the network? When stakers communicate off-chain, we inherit all the problems of private networking.
In our case, the holy grail is preventing knowledge of each others' identities between stakers... when stakers can communicate easily via side channels.
Interested in other people's thoughts here @zmanian @_charlienoyes @least_nathan
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