# TFH Docs ## Docs - [TFH Documentation](https://docs.toolsforhumanity.com/index.md): Technical documentation for Tools for Humanity — World App, Mini Apps, and the Orb. - [About the Orb](https://docs.toolsforhumanity.com/orb/index.md): Biometric verification device powering Proof of Human credentials - [Advanced Topics on Backup](https://docs.toolsforhumanity.com/world-app/backup/advanced.md): Internal advanced technical reference for the backup system. - [Backup Flows](https://docs.toolsforhumanity.com/world-app/backup/flows.md): Detailed documentation on the key flows related to the World App backup system. - [Introduction to Backup](https://docs.toolsforhumanity.com/world-app/backup/index.md): The backup system enables logging in to World App. - [Backup Sync & Internal Structure](https://docs.toolsforhumanity.com/world-app/backup/structure-and-sync.md): Describes how the backup is synced between devices and used for authenticating new devices. - [Bedrock — The Foundational Library](https://docs.toolsforhumanity.com/world-app/bedrock.md): Bedrock is the foundational cross-platform library that powers World App. In particular, it enables the crypto wallet functionality for World App. - [Cryptography](https://docs.toolsforhumanity.com/world-app/cryptography.md): Cryptography reference for World App. - [Introduction](https://docs.toolsforhumanity.com/world-app/index.md): World App provides simple and easy access to World Network. - [Client-side Transactions](https://docs.toolsforhumanity.com/world-app/transactions.md): Spec for client-side transaction architecture, World App RPC, nonce layout, and wallet readiness. ## OpenAPI Specs - [world-miniapps](https://docs.toolsforhumanity.com/openapi/world-miniapps.json) ## Optional - [Mini Apps](https://docs.world.org/mini-apps)