Polygon PoS checkpoint finality versus Polygon zkEVM cryptographic finality: choosing a settlement‑time guarantee
Developers building dApps on Polygon often require a known upper bound on when a transaction becomes immutable on Ethereum to manage user funds and liquidity. The Polygon PoS sidechain produces blocks roughly every two seconds, yet finality is only achieved when a checkpoint is submitted to Ethereum, which occurs approximately every thirty minutes and can in
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