Is Chromia proof of stake?

Could you clarify if Chromia, a blockchain platform designed for the development of decentralized applications, utilizes a proof-of-stake consensus mechanism? Proof-of-stake is a popular consensus algorithm in the cryptocurrency space, where validators put up a stake, or a portion of their tokens, to participate in consensus and earn rewards. It's important to understand the consensus mechanism behind a blockchain as it affects its security, decentralization, and scalability. Does Chromia rely on proof-of-stake or another consensus mechanism?