Proof of Stake (PoS)
Proof of Stake (PoS) represents a consensus mechanism used by certain cryptocurrencies to achieve distributed consensus on a blockchain. Contrary to the Proof of Work (PoW) system, which requires substantial computational power to mine new blocks, PoS allows block validation and creation based on the validator's stake, typically the amount of cryptocurrency they hold. This approach significantly reduces the energy consumption associated with maintaining the blockchain, presenting a more environmentally friendly alternative to PoW.