# Polygon’s Proof-of-Stake

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The technical foundation of Polygon is made up of its Proof-of-Stake blockchain and more practical plasma L-2 scaling mechanism. To scale the Ethereum network and address the inefficiencies preventing the broader use of decentralized blockchain technology, Polygon PoS commits chain was developed.

Before transferring the information back to the Ethereum main chain, polygon commit chains combine and validate the transaction fees. It delivers incredibly rapid and low-cost transactions compared to the leading Ethereum blockchain network.

By doing this, a few chosen validators are responsible for checking each transaction individually, rather than each Ethereum node individually. This improves scalability and significantly cuts down on transaction time.
