# Robinhood Chain

Chain ID 4663, public RPC, Blockscout, and why Flips is single-chain.

Flips trades on **Robinhood Chain** only. That is an Arbitrum Orbit L2. Chain ID **4663**. Native gas token is **ETH**.

## Add the network

- Chain ID: `4663`
- RPC: `https://rpc.mainnet.chain.robinhood.com` (public, rate-limited)
- Explorer: [robinhoodchain.blockscout.com](https://robinhoodchain.blockscout.com)

A linked browser wallet that is still on Ethereum mainnet will not send a Flips ticket. Switch the wallet, do not paste the 4663 address into a mainnet send modal and hope.

## Block time

Blocks are on the order of **0.1s**. Windowed stats (5m, 1h) are a lot of blocks. If a chart looks "empty," it may be a query window, not zero flow.

## Testnet

Chain ID **46630** exists. The production terminal is mainnet 4663. Do not deposit real size to a testnet address because a faucet page looked similar.

## Bridges

In and out of 4663 go through [Deposit & withdraw](/docs/deposit), not through a random L2 bridge UI that does not list Robinhood Chain.