Ethereum-scaling protocol zkSync’s layer-3 prototype set for testing in 2023  
The team is touting that its layer-3 prototype will significantly improve different areas of blockchain performance, such as scaling, customization and security.
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### Instruction: Ethereum-scaling protocol zkSync’s layer-3 prototype set for testing in 2023  

### Response: The team is touting that its layer-3 prototype will significantly improve different areas of blockchain performance, such as scaling, customization and security.