Network parameters

Who this is for: operators who need block time, finality, or endpoint values while running a node. Chain ID, RPC, and endpoint values live in /reference/networks.

You should already know: which network you're running against, mainnet or Beam testnet. Confirm from /reference/networks before configuring anything; do not copy a chain ID or RPC URL from an old tutorial.

What to look up, and where

• Chain ID, RPC, explorer, faucet: /reference/networks.

• Gas and fee parameters: /reference/gas-and-fees.

A note on finality, for this architecture specifically

Lumia Prism's state validity is enforced by ZK proofs, not by an optimistic challenge window. There is no dispute-period concept to configure or wait out the way there would be on an optimistic rollup. What node operators actually see is the cadence at which the network's proof-settlement process finalizes L2 to L1 withdrawals on L1. That cadence is not published as a committed SLA; do not build automation that assumes a specific settlement window without confirming it independently.

Block time is 3.02 seconds on mainnet and about 10 seconds on Beam testnet.

These are observed cadences, not a protocol guarantee. Measure again before building automation that depends on a tighter figure.