# General FAQs

**What Exactly is Prom network?** 

Prom is a high-performance scalable network based on Polygon CDK. Prom submits its proof of transaction to the additional chains on top of the chosen Settlement chain, building the bridge between ecosystems.

**Key Features of Prom?**

* Multichain support: Prom can submit its proof of transaction across multiple networks, including both EVM and non-EVM compatible chains, which ensures a high level of decentralization and 100% uptime;
* Efficiency & Scalability: reduced costs and enhanced scalability with zkSNARKs;
* High-Speed Transactions: Polygon Zero's tech brings exceptional speed to every transaction;
* Robust Security: Inheriting Ethereum's security, Prom ensures the highest level of data integrity;
* EVM Compatibility: Seamless integration in a familiar EVM environment;

**Gas Fee Reduction Expectations with Prom?** 

Users can look forward to a significant reduction in gas fees relative to Ethereum Layer 1. Prom's protocols batch multiple transactions, spreading the cost of a single Layer 1 transaction over numerous transactions.

**Does Prom Utilize a Separate Token for Transactions?** 

Yes, transactions in Prom will utilize the PROM token for gas fees. Prom also accommodates Account Abstraction via ERC-4337, enabling transparent fee payment with any token from the user’s perspective.

**Suitable dApps for Deployment on Prom?** 

Any dApp that's EVM-compatible can be deployed on Prom, with the exception of those requiring specific precompiled contracts not currently supported. Detailed information on compatible precompiled contracts is available in our documentation.

**Prom Capability for Cross-Chain Interactions?** 

At present, Prom does not support cross-chain functionalities. However, our future roadmap includes enabling asset movement across various networks, though not available at launch.

**Principal Use Cases for Prom?**

* **DeFi Applications:** High security and efficient capital utilization make it suitable for DeFi.
* **NFT, GameFi, and Enterprise Applications:** Beneficial for these sectors due to low gas fees, fast transaction speeds, and robust security.
* **Payments:** Ideal for users seeking real-time transactions with minimal fees.

**How Reliable are Prom Proofs on Layer 1?** 

The accuracy of these proofs is assured by our zkRollup smart contract. Their reliability stems from data availability and the ease of verifying the SNARK proofs.

**Compatibility of Prom with Solidity and Vyper?** 

Yes, Prom supports all languages that compile to EVM opcode, including Solidity and Vyper.

**What Constitutes an RPC Node in Prom?** 

An RPC (Remote Procedure Call) node in Prom is a JSON-RPC interface compatible with Ethereum, enabling seamless integration with existing tools like Metamask, Etherscan, and Infura. Its operation is akin to Ethereum nodes such as geth.

**Prom Support for JSON-RPC EVM Query Specifications?** 

Prom supports all standard queries (eth\_\* endpoints). Efforts are underway to extend support to additional endpoints like debug\_\*.


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