Launch a chain Run a node Use the bridge How it works Notices BoLD overview FAQ Technical deep dive How bisection works Economics of disputes Deploy a validator on testnet BoLD Whitepaper Specification on GitHub The BoLD dispute protocol

The BoLD dispute protocol

How BoLD resolves disputes over Arbitrum chain state.

Request an update

BoLD (Bounded Liquidity Delay) is Arbitrum's dispute protocol for permissionless validation. This section explains how BoLD resolves disputes over chain state.

Overview of BoLD

A high-level introduction to permissionless validation.

Economics of disputes

The stakes, costs, and incentives behind a challenge.

How bisection works

An interactive replay of a real onchain edge challenge.

Technical deep dive

The BoLD protocol in full detail.

How is this guide?

Economics of disputes

An in-depth explanation on BoLD economic mechanisms.

For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append .md to any docs page URL for the markdown version of that page.

Arbitrum docs

Ecosystem

Arbitrum.io Arbitrum chains Arbitrum Foundation Arbitrum whitepaper

Products

Portal Bridge Network status Governance docs

Community

Discord Twitter Youtube Medium Blog

Resources

Support Bug Bounties Research forum Careers