# What's the modular blockchain?

By [afenga](https://paragraph.com/@afenga) · 2022-08-05

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    It is analyzed from the essential structure of the blockchain. Functionally, the blockchain system can be divided into three parts: Execution layer: execute transactions;
    
    Consensus layer: Verification and consensus on transaction execution results;
    
    Data Availability Layer: Storage of transaction raw data.
    
    At present, Ethereum's hot Layer2 is an attempt to modularize and separate the execution layer.

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*Originally published on [afenga](https://paragraph.com/@afenga/what-s-the-modular-blockchain)*