Proof of Stake (PoS) is a consensus mechanism used in blockchain networks to confirm transactions in a more energy-efficient way than traditional mining (Proof of Work - PoW). Instead of solving complex mathematical problems, participants lock up a portion of their coins as 'stake' to contribute to the security of the network.
Validators are chosen randomly based on the amount of stake and the duration it is held, and they are rewarded for their work. Networks like Ethereum (after the Merge update), Cardano, and Polygon use this system.
Its features include low energy consumption, higher transaction speeds, and ease of participation without the need for expensive mining equipment. With increasing environmental awareness, PoS is considered a promising future for blockchain.
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