Hanzo AI a3f4adc49f configs: LUX_DISABLE_CCHAIN=1 omits C-Chain from primary genesis
Adds an opt-out for the embedded C-Chain that gets baked into every
primary network genesis. With LUX_DISABLE_CCHAIN=1 the cchainData byte
slice stays empty, ConfigOutput.CChainGenesis is "", and downstream
builder.FromConfig's `if config.CChainGenesis != ""` guard skips the
C-Chain entry entirely — no more chainId 31337 silently mounted at
/ext/bc/C/rpc on networks that don't want it.

Why this knob exists: forks that run their own EVM blockchain via
CreateChainTx (<tenant>, etc.) don't use the C-Chain at all — but the
embedded localnet/cchain.json was being read unconditionally, so an
SRE running `lqd --network-id=1337` with no C-Chain env vars set
still got one. That's a footgun for any service that hard-codes the C
alias and a confusion source when you grep for /bc/C and it's there.

Three tests pin the behavior:

  • TestGetGenesis_DisableCChain — set knob → cChainGenesis is empty
    in the marshalled primary genesis, networkID still 1337.

  • TestGetGenesis_DisableCChainOverridesFile — disable wins over the
    LUX_CCHAIN_GENESIS_FILE override; an SRE setting both during a
    misconfig probe gets the no-C-Chain outcome rather than silently
    landing the file's content on the primary.

  • TestGetGenesis_DisableCChainDefault — unset knob still embeds
    C-Chain (regression guard so a careless precedence edit doesn't
    silently strip C-Chain from mainnet/testnet/devnet).

go.mod / go.sum churn is `go mod tidy` resolving previously-stale
entries — unrelated to the C-Chain change but required for the test
suite to build.
2026-05-09 16:27:36 -07:00

Lux Network Genesis Configurations

This repository contains the canonical genesis configurations for all Lux networks.

Directory Structure

genesis/
├── mainnet/           # LUX Mainnet (Chain ID: 96369)
│   ├── cchain.json    # C-Chain genesis (EVM compatible)
│   ├── pchain.json    # P-Chain genesis (Platform chain)
│   ├── xchain.json    # X-Chain genesis (Exchange chain)
│   ├── network.json   # Network configuration
│   └── genesis.json   # Full network genesis
├── testnet/           # LUX Testnet (Chain ID: 96368)
│   ├── cchain.json    # C-Chain genesis (EVM compatible)
│   └── genesis.json   # Full testnet genesis
├── devnet/            # LUX Devnet (Chain ID: 96370) - Fast iteration network
│   └── cchain.json    # C-Chain genesis (EVM compatible)
├── local/             # Local development network (Chain ID: 1337)
│   ├── cchain.json    # C-Chain genesis (EVM compatible)
│   └── genesis.json   # Local network genesis
├── bootstrappers.json # Network bootstrapper nodes
└── checkpoints.json   # Network checkpoints

Mainnet C-Chain Genesis

The mainnet C-Chain was initialized with a single genesis allocation:

Address Balance
0x9011e888251ab053b7bd1cdb598db4f9ded94714 2,000,000,000,000,000,000,000,000,000,000 wei (2T LUX)

Key Parameters

  • Chain ID: 96369
  • Gas Limit: 30,000,000 (0x1C9C380)
  • Min Base Fee: 25 gwei
  • Block Rate: 2 seconds

Network IDs

Network Chain ID Network ID Purpose
LUX Mainnet 96369 96369 Production network
LUX Testnet 96368 96368 Public test network
LUX Devnet 96370 96370 Fast iteration dev network
Local 1337 1337 Local development

Network Configurations

Mainnet (96369)

  • Block Rate: 2 seconds
  • Gas Limit: 30M
  • Min Base Fee: 25 gwei
  • Genesis Account: 0x9011... with 2T LUX

Testnet (96368)

  • Block Rate: 2 seconds
  • Gas Limit: 12M
  • Min Base Fee: 25 gwei
  • Genesis Account: 0x9011... with 2T LUX (same as mainnet)

Devnet (96370)

  • Block Rate: 1 second (faster)
  • Gas Limit: 20M
  • Min Base Fee: 1 gwei (cheaper)
  • Genesis Account: 0x9011... with 2T LUX
  • All upgrades enabled at genesis (Shanghai, Cancun, etc.)

Local (1337)

  • Block Rate: 1 second
  • Gas Limit: 15M
  • Min Base Fee: 1 gwei
  • Genesis Account: 0x9011... with 2T LUX
  • All upgrades enabled at genesis

Usage

These genesis files are used by:

  • luxd node for network initialization
  • coreth for C-Chain configuration
  • Block explorers for genesis block verification
  • Migration tools for state reconstruction

RPC Endpoints

  • Mainnet: http://localhost:9630/ext/bc/C/rpc
  • Testnet: http://localhost:9630/ext/bc/C/rpc (testnet node)
  • Devnet: http://localhost:9630/ext/bc/C/rpc (devnet node)

Genesis Account

All networks use the same production genesis account:

Account Balance Networks
0x9011e888251ab053b7bd1cdb598db4f9ded94714 2T LUX All networks

State Data & RLP Exports

Blockchain state exports and RLP-encoded blocks are maintained in a separate repository:

Repository: github.com/luxfi/state

Available Data

Network Chain ID Blocks RLP Location
Lux Mainnet 96369 1,082,780 rlp/lux-mainnet/lux-mainnet-96369.rlp
Lux Testnet 96368 219 rlp/lux-testnet/lux-testnet-96368.rlp
Zoo Mainnet 200200 799 rlp/zoo-mainnet/zoo-mainnet-200200.rlp
Zoo Testnet 200201 85 rlp/zoo-testnet/zoo-testnet-200201.rlp

Import Workflow

# Clone repos
git clone https://github.com/luxfi/genesis
git clone https://github.com/luxfi/state

# Initialize with genesis
geth init --datadir /path/to/db genesis/mainnet/cchain.json

# Import blocks from state repo
geth import --datadir /path/to/db state/rlp/lux-mainnet/lux-mainnet-96369.rlp

Source Data

The state repo also contains:

  • pebbledb/ - Original SubnetEVM PebbleDB databases
  • docs/ - State verification and recovery documentation
  • pkg/ - Go tools for archaeology, bridge, and scanning
S
Description
Lux Network genesis for Mainnet, Testnet, Devnet, Local/Custom.
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