# Radius

## V7 (Sep 2025)

- [About Radius](https://docs.theradius.xyz/overview/readme.md)
- [The Vision](https://docs.theradius.xyz/overview/the-vision.md)
- [Secure Block Building (SBB)](https://docs.theradius.xyz/overview/secure-block-building-sbb.md)
- [Overview](https://docs.theradius.xyz/overview/secure-block-building-sbb/secure-block-building-sbb.md)
- [Architecture](https://docs.theradius.xyz/overview/secure-block-building-sbb/architecture.md)
- [Core Components](https://docs.theradius.xyz/overview/secure-block-building-sbb/core-components.md): There are three components in SBB: Secure-RPC, Tx\_Orderer (Operators), and Distributed Key Generator (DKG).
- [Distributed Key Generator (DKG)](https://docs.theradius.xyz/overview/secure-block-building-sbb/distributed-key-generator-dkg.md)
- [OP Stack Compatibility](https://docs.theradius.xyz/overview/secure-block-building-sbb/op-stack-compatibility.md)
- [Lighthouse](https://docs.theradius.xyz/overview/lighthouse.md)
- [Overview](https://docs.theradius.xyz/overview/lighthouse/lighthouse.md)
- [Slot-Ordering](https://docs.theradius.xyz/overview/lighthouse/slot-ordering.md)
- [Architecture](https://docs.theradius.xyz/overview/lighthouse/architecture.md)
- [Lighthouse Auctions](https://docs.theradius.xyz/overview/lighthouse/lighthouse-auctions.md)
- [Deposits & Withdrawals](https://docs.theradius.xyz/overview/lighthouse/deposits-and-withdrawals.md): The system uses off-chain balance tracking and on-chain contract settlement.
- [Roadmap](https://docs.theradius.xyz/overview/roadmap.md)
- [Secure Block Building (SBB)](https://docs.theradius.xyz/overview/secure-block-building-sbb-1.md)
- [Quick Start](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/quick-start.md)
- [Run Tx\_Orderer](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/quick-start/run-tx_orderer.md)
- [Run Secure RPC](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/quick-start/run-secure-rpc.md)
- [Contracts](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/contracts.md)
- [Liveness Service Manager](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/contracts/liveness-service-manager.md)
- [Validation Service Manager](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/contracts/validation-service-manager.md)
- [Seeder](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/seeder.md)
- [Tx\_Orderer Cluster](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/tx_orderer-cluster.md)
- [Liveness](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/tx_orderer-cluster/liveness.md)
- [Leader Selection](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/tx_orderer-cluster/liveness/leader-selection.md)
- [Syncing](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/tx_orderer-cluster/liveness/syncing.md)
- [Block Validation](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/tx_orderer-cluster/liveness/block-validation.md)
- [Leader-based](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/tx_orderer-cluster/leader-based.md)
- [Secure RPC](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/secure-rpc.md)
- [Distributed Key Management System (DKG)](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/distributed-key-management-system-dkg.md)
- [Client (User)](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/client-user.md)
- [Backrunning](https://docs.theradius.xyz/overview/secure-block-building-sbb-1/backrunning.md)
- [Lighthouse](https://docs.theradius.xyz/overview/lighthouse-1.md): Key Requirements, Architecture, Specifications, and Security
- [Internal Secure Block Building (SBB)](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb.md)
- [Quick Start](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/quick-start.md)
- [Run Seeder](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/quick-start/run-seeder.md)
- [Run DKG](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/quick-start/run-dkg.md)
- [Run Tx. Orderer](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/quick-start/run-tx.-orderer.md)
- [Run Secure RPC](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/quick-start/run-secure-rpc.md)
- [Contracts](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/contracts.md)
- [Liveness Service Manager](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/contracts/liveness-service-manager.md)
- [Validation Service Manager](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/contracts/validation-service-manager.md)
- [Seeder](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/seeder.md)
- [Distributed Key Management System (DKG)](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/distributed-key-management-system-dkg.md)
- [Tx. Orderer Cluster](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/tx.-orderer-cluster.md)
- [Liveness](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/tx.-orderer-cluster/liveness.md)
- [Leader Selection](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/tx.-orderer-cluster/liveness/leader-selection.md)
- [Syncing](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/tx.-orderer-cluster/liveness/syncing.md)
- [Block Validation](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/tx.-orderer-cluster/liveness/block-validation.md)
- [Leader-based](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/tx.-orderer-cluster/leader-based.md)
- [Secure RPC](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/secure-rpc.md)
- [Client (User)](https://docs.theradius.xyz/overview/internal-secure-block-building-sbb/client-user.md)
- [Introduction](https://docs.theradius.xyz/alpha-engine/introduction.md)
- [Alpha Engine by Radius, Symbiotic, Avail](https://docs.theradius.xyz/alpha-engine/alpha-engine-by-radius-symbiotic-avail.md)
- [Loggia Testnet with Radius AVS](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs.md)
- [Encrypted Preconfirmations](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs/encrypted-preconfirmations.md)
- [Decentralized Sequencing](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs/decentralized-sequencing.md)
- [Leader-based](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs/decentralized-sequencing/leader-based.md)
- [Liveness](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs/decentralized-sequencing/liveness.md)
- [Leader Selection](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs/decentralized-sequencing/liveness/leader-selection.md)
- [Syncing](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs/decentralized-sequencing/liveness/syncing.md)
- [Block Validation](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs/decentralized-sequencing/liveness/block-validation.md)
- [L1 Security](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs/decentralized-sequencing/liveness/l1-security.md)
- [Code References](https://docs.theradius.xyz/testnet/loggia-testnet-with-radius-avs/code-references.md)
- [Portico Testnet](https://docs.theradius.xyz/testnet/portico-testnet.md)
- [Introduction](https://docs.theradius.xyz/testnet/portico-testnet/introduction.md)
- [Encrypted Mempool](https://docs.theradius.xyz/testnet/portico-testnet/encrypted-mempool.md)
- [Sequencing Layer ↔ User](https://docs.theradius.xyz/testnet/portico-testnet/sequencing-layer-user.md)
- [Sequencing Layer ↔ Rollup](https://docs.theradius.xyz/testnet/portico-testnet/sequencing-layer-rollup.md)
- [Distributed Sequencing](https://docs.theradius.xyz/testnet/portico-testnet/distributed-sequencing.md)
- [Leader-based](https://docs.theradius.xyz/testnet/portico-testnet/distributed-sequencing/leader-based.md)
- [Fault-tolerant](https://docs.theradius.xyz/testnet/portico-testnet/distributed-sequencing/fault-tolerant.md)
- [Code References](https://docs.theradius.xyz/testnet/portico-testnet/code-references.md)
- [Curie Testnet](https://docs.theradius.xyz/testnet/curie-testnet.md)
- [Encrypted Mempool](https://docs.theradius.xyz/testnet/curie-testnet/encrypted-mempool.md)
- [Testnet Guide](https://docs.theradius.xyz/testnet/curie-testnet/testnet-guide.md)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on a page URL with the `ask` query parameter:
```
GET https://docs.theradius.xyz/overview/readme.md?ask=<question>
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.