What other whitepapers are there for coin distribution models like POW (proof of work) and POS (proof of stake)? I'm looking for other types of distribution models for crypto coins that are like POW (proof of work) and POS (proof of stake). I'm assuming these are a type of distribution model for coins, or is there a better term for it? I mainly want to find other systems that have unique ways of distributing a coin. Is there a list somewhere?
I don't know of any such list yet, but no reason we can't start making one. :) Others should feel free to add their findings via an edit.


Proof of Work
Proof of Stake
Proof of Activity
Proof of Storage
Proof of Knowledge
Proof of Stake Velocity
Proof of Burn
Dual Purpose Proof of Work (Primecoin)
Proof of Lock (Tendermint)
Delegated Proof of Stake (Bitshares)
Stellar Consensus Protocol (Stellar)
Xoken Consensus Protocol (Xoken)