What is Proof of Stake or PoS in blockchain?
The PoS or Proof of Stake is a consensus mechanism used in blockchains to process transactions and create new blocks. At Solana it is used as a protocol to choose validators for each Epoch.
The participants of the staking lock their tokens and are given the opportunity to be elected as a validator, along with the common benefits of staking.
After the Ethereum Merge, staking became an energy efficient and viable alternative, contrary to PoW or Proof of Work. In addition, staking underpins the principles of decentralization in Web3.