> For the complete documentation index, see [llms.txt](https://hash-network.gitbook.io/hashnetwork/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hash-network.gitbook.io/hashnetwork/core-concepts-and-architecture/hash-network-layer-3-stack.md).
# Hash Network Layer 3 Stack
The Hash Network Layer 3 stack is a modular architecture designed to capture value across its DePIN and Value layers. Operating on an L2 rollup, it integrates critical components to enhance security, scalability, and user control, with near-zero transaction fees using a native token. This stack also centralizes the provenance of decentralized content, ensuring efficient and secure operations.
**Execution Layer:** Utilizing Arbitrum Orbit for high-throughput execution, ensuring dApps run efficiently at scale with reduced costs.
**Settlement Layer:** Leveraging Arbitrum Nova for secure and efficient transaction settlement, enhancing overall network reliability.
**Data Availability Layer:** The Eigen Layer ensures robust data availability, maintaining integrity during disruptions and guaranteeing reliable access to decentralized content.
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