# Urbit ID

- [What is Urbit ID?](/urbit-id/what-is-urbit-id.md): Overview of Urbit ID, a decentralized identity standard built on Ethereum. Covers network topology, smart contracts, and Layer 2 rollup functionality.
- [Azimuth Data Flow](/urbit-id/flow.md): Technical overview of Azimuth's data flow, including Bridge, Gall agents, the Layer 2 naive rollup solution, and how components in Urbit OS communicate in Urbit's PKI system on Ethereum.
- [Life and Rift](/urbit-id/life-and-rift.md): Explanation of life and rift numbers in Azimuth, how they track networking key revisions and breach counts for secure peer-to-peer networking on Urbit.
- [Urbit HD Wallet](/urbit-id/hd-wallet.md): Guide to Urbit's Hierarchical Deterministic wallet system. Master tickets, proxy keys, wallet generation, and security best practices for Urbit ID ownership.
- [Advanced Azimuth Tools](/urbit-id/advanced-azimuth-tools.md): Advanced techniques for generating, signing, and sending Azimuth transactions from within Urbit using the %claz and %eth-sender agents for Layer 1 operations.
- [Custom Roller Tutorial](/urbit-id/roller-tutorial.md): Step-by-step tutorial for setting up your own Layer 2 roller for Urbit ID transactions, including configuration, Bridge setup, and roller management commands.
- [Azimuth.eth Reference](/urbit-id/azimuth-eth.md): Technical reference for Azimuth.eth, the data store for Urbit ID ownership, Points, Deeds, networking keys, and sponsorship information on Ethereum.
- [Ecliptic.eth Reference](/urbit-id/ecliptic.md): Technical reference for the Ecliptic.eth smart contract, which runs business logic for Urbit ID operations, including all write and read functions for managing Points, proxies, and governance.
- [Layer 2](/urbit-id/l2.md): Technical overview of Azimuth's Layer 2 naive rollups scaling solution: transaction batching, state management, sponsorship mechanics, and security measures for reduced-cost Urbit ID operations.
- [L2 Actions](/urbit-id/l2/l2-actions.md): Guide to the actions that can be taken by Azimuth's Layer 2 roller.
- [L2 Rollers](/urbit-id/l2/roller.md): Overview of Azimuth's Layer 2 naive rollup solution.
- [L2 Roller HTTP RPC-API](/urbit-id/l2/layer2-api.md): Guide to Azimuth's Layer 2 roller's HTTP RPC-API.
- [L2 Transaction Format](/urbit-id/l2/bytestring.md): Guide to the bytestring format for Azimuth's Layer 2 roller transactions and batches.