# Nova Arbitrum

By [Vagabond ](https://paragraph.com/@vietnamngaonghe) · 2023-04-22

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*   Ultra-low transaction costs with high security. Nova powers dapps with high transaction volumes that seek to drive costs even lower.
    
*   **Who Is Nova For?**
    
*   **Game Developers**
    
    Nova is perfect for games, where user actions can mint items on-chain at a high frequency, from currency to personalized assets.k
    
*   **Social Projects**
    
    Reddit’s Community Point system is built on Nova, where social applications with many levers for on-chain applications are right at home.
    
    **Blockchain dApps**
    
    From NFT ecosystems with high volume requirements, to other projects open to off-chain data storage, Nova suits a wide variety of use cases.
    
*   **Why Nova?**
    
*   Strong Security Guarantees
    

Nova enables ultra-low transaction fees through a new security model that relies on a Data Availability Committee (DAC).

Sequencer batches and compresses transactions

Certificate of Data Availability provided by Committee

Fallback to Arbitrum Rollup

*   **Arbitrum One vs Arbitrum Nova**
    
*   **Nova** is different from Arbitrum One in that the Data Availability Committee receives the transaction data first, with the data going on-chain only if the committee fails. It makes the assumption that at least two committee members are honest.
    
*   [https://www.layerswap.io/](https://www.layerswap.io/)
    

**What security model does Nova use to enable ultra-low transaction fees?**

Data Availability Committee (DAC)

**What types of applications does Nova powerfully support?**

Both gaming and

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*Originally published on [Vagabond ](https://paragraph.com/@vietnamngaonghe/nova-arbitrum)*