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Unchangeability is regarded as one of the distinguishing characteristics of blockchain technology, limiting its scalability. This implies that the network's ability to handle large amounts of transaction data on its platform in a short time is limited.

Among the many factors that influence scalability include;
• Consensus mechanism
• Network latency
• Transaction payload size.

To address this scalability issue, Polygon Zero knowledge Ethereum Virtual Machine that generates zero-knowledge proofs to verify the correctness of programs proposes to improve user experience through higher-quality speed, cost reduction, and the ability to build and deploy any Ethereum smart contract on Polygon zkEVM in the same way that Ethereum does.

The Polygon zkEVM is permissionless and open-source which means that anyone can use it and trust the code.