What is Proof of Stake (PoS)?

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Accepted Answer

Proof of Stake (PoS) is a consensus mechanism used by blockchain networks to achieve distributed agreement and validate new transactions by requiring users to stake, or lock up, a certain amount of the network's native cryptocurrency. This mechanism selects validators based on the size of their stake and the duration they have held it, offering a significantly more energy-efficient and scalable alternative to the Proof of Work (PoW) system.

Proof of Stake (PoS)

What is Proof of Stake (PoS)?

What is the core mechanism of Proof of Stake (PoS) and how does it differ from Proof of Work (PoW)?

How does the Proof of Stake model enhance blockchain security and prevent malicious activity?

What are the primary economic and environmental advantages of Proof of Stake over older consensus systems?

What are the key challenges and criticisms associated with the implementation of Proof of Stake?

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