其他共识机制

Proof of authority

PoA 会选出一些节点做 validators。PoA 是 Gavin Wood 提出来的。PoA 似乎没什么前景。问题在于，如何确定拥有 authority，是可以拥有 authority 的。

References:

• Proof of authority
• PoA Private Chains

Swarm consensus

References:

• Swarm consensus
• Raft consensus in swarm mode

Proof of Donation

• About Polygon Hermez

Proof of Efficiency

一种用于 zk-rollups 的共识。

Reference: Proof of Efficiency: A new consensus mechanism for zk-rollups

Proof of Burn

Reference: Proof of Burn

Proof of Elapsed Time

PoET 是一种 Nakamoto-style 的共识算法，Hyperledge Sawtooth 采用了这种机制。

Reference: On Elapsed Time Consensus Protocols

Proof of History

Reference: Proof of History: A Clock for Blockchain](https://medium.com/solana-labs/proof-of-history-a-clock-for-blockchain-cf47a61a9274)

Proof of Transfer

简介

Reference: Proof of Transfer

Proof of Block Space

References: How to fix Bitcoin’s long term security problem