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Chain Guides5 min read

Polygon zkEVM: Ethereum Security with Layer 2 Speed

Everything you need to know about Polygon zkEVM — how it works, its advantages, and how to bridge and trade on the network.

What Is Polygon zkEVM?

Polygon zkEVM is a zero-knowledge rollup that provides Ethereum-equivalent execution at a fraction of the cost. Unlike optimistic rollups, zkEVM uses mathematical proofs to validate transactions, offering faster finality.

How ZK Rollups Work

  • Users submit transactions to the zkEVM sequencer
  • Transactions are batched and executed off-chain
  • A zero-knowledge proof is generated proving correct execution
  • The proof is verified on Ethereum mainnet
  • State is updated on L1 with mathematical certainty

    • Advantages Over Optimistic Rollups

    • Faster withdrawals: No 7-day challenge period since proofs are mathematically verified
    • Stronger security: Validity proofs vs fraud proofs
    • Lower costs: ZK proofs can compress more data efficiently

    Ecosystem Highlights

    • QuickSwap: Leading DEX on Polygon zkEVM
    • Aave: DeFi lending deployed on zkEVM
    • Native USDC: Circle provides native USDC support
    • Growing DeFi: New protocols launching regularly

    Bridging to Polygon zkEVM

    Use Alkizen for seamless bridging from any chain to Polygon zkEVM. The Relay infrastructure handles the bridge automatically — select your source token and destination, and the optimal route is calculated for you.

    Gas and Fees

    Polygon zkEVM fees are typically 5-10x cheaper than Ethereum mainnet. The network uses ETH for gas, bridged from Ethereum L1.

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