B-Chain (Bridge)

Cross-chain asset bridge with MPC threshold signing across major external networks. LP-333 signer set management with 100M LUX slashable bonds.

Chain Overview Explorer Source

Overview

The Bridge Chain connects Lux Network to major external blockchains through MPC threshold signing. Unlike centralized bridges, the B-Chain distributes signing authority across a decentralized set of validators with 100M LUX in slashable bonds (LP-333).

Bridge operations are verified by multiple independent parties before execution. The threshold signing scheme means no single party can move funds — a configurable quorum must agree on every cross-chain transfer.

Supported networks include Ethereum, Bitcoin, Solana, Cosmos, Polkadot, and others. New chains can be added through governance proposals without protocol upgrades.

Technical Specifications

Networks200+

SigningMPC Threshold (t-of-n)

Bond100M LUX (slashable)

VerificationMulti-party

Settlement~30 seconds

Chain TypeOptional

Features

Broad external network connectivity

MPC threshold signing

100M LUX slashable bonds

LP-333 signer set management

Trustless verification

Governance-controlled chain additions

Quick Start

Install the Lux SDK and start interacting with Bridge Chain.

Installation

npm install luxnet

Example

import { BridgeClient } from 'luxnet/bridge'

const bridge = new BridgeClient('https://bridge.lux.network')

// Bridge ETH from Ethereum to Lux
const tx = await bridge.transfer({
  sourceChain: 'ethereum',
  destChain: 'lux-c',
  asset: 'ETH',
  amount: '1.5',
  recipient: '0x...',
})

SDKs & Libraries

JavaScript SDK

npm i luxnet

Go SDK

go get github.com/luxfi/sdk

Smart Contracts

npm i @luxfi/contracts

Wallet SDK

npm i @luxfi/wallet-sdk

API Reference

Full API reference documentation is available at docs.lux.network.

View Full API Docs

D-Chain (DEX)

O-Chain (Oracle)