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What Is Proof-of-Activity as a Hybrid Consensus Model?

Proof-of-Activity (PoA) is a hybrid blockchain consensus mechanism that combines Proof-of-Work (PoW) and Proof-of-Stake (PoS). It aims to leverage the security of PoW while being more energy-efficient like PoS.

The process begins with miners solving a cryptographic puzzle to create a new block (PoW). Then, a group of validators is randomly selected to sign and approve the new block (PoS).

This dual approach is designed to make the network more resistant to attacks.

What Is the Primary Difference between Proof-of-Work and Proof-of-Stake Consensus Mechanisms?
How Does a Hybrid PoW/PoS System Compare to a Multi-Algorithm PoW System in Terms of Security?
Which Cryptocurrencies Have Successfully Implemented a Hybrid Consensus Mechanism?
How Does Proof-of-Stake (PoS) Differ from Proof-of-Work and Why Is It Preferred for Some Financial Applications?