# Chain-based Hybrid models

Proof of Activity and hybrid PoW/PoS

Here are the articles in this section:

GRANDPA

Proof of authority (PoA)

Ethereum Proof of Authority

Limited Confidence Proof-of-Activity (LCPoA)

Proof of Work (PoW) / Nexus Proof of State (nPoS) or Nexus Proof of Holding (nPOH)

Proof of Activity

Proof of Work (PoW) / Proof of Stake (PoS) / Proof Of Care (PoC)

Proof of work (PoW) / High Interest Proof of Stake (HiPoS)

Proof of Work (PoW) / PoM / PoSII

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