Is chainlink a PoS or PoW?

One method many cryptos use is proof of stake (PoS). Proof of stake is a type of consensus mechanism used to validate cryptocurrency transactions . With this system, owners of the cryptocurrency can stake their coins, which gives them the right to check new blocks of transactions and add them to the blockchain.21 Oca 2022

Ethereum is moving to a consensus mechanism called proof-of-stake (PoS) from proof-of-work (PoW).

Instead of a Proof of Work (PoW) algorithm, Chainlink uses a mechanism that works as Proof of Stake (PoS) coins and node operators secure the network by validating transactions. Validators also stake their tokens to participate in the process of connecting external data sources on-chain.