Robinhood Chain

Network parameters

Add it to a wallet

Most wallets will offer the switch automatically from the connect panel. To add it by hand, EIP-3085 wants the chain id in hex:

await window.ethereum.request({
  method: "wallet_addEthereumChain",
  params: [{
    chainId: "0x1237",
    chainName: "Robinhood Chain",
    nativeCurrency: { name: "Ether", symbol: "ETH", decimals: 18 },
    rpcUrls: ["https://rpc.mainnet.chain.robinhood.com"],
    blockExplorerUrls: ["https://robinhoodchain.blockscout.com"],
  }],
});

Architecture

• Stack — Arbitrum Orbit (Nitro). Solidity and Vyper deploy unmodified; Hardhat, Foundry, ethers, viem, and wagmi all work out of the box.
• Data availability — Ethereum blobs (EIP-4844). Settlement inherits Ethereum through the rollup.
• Sequencing — First come, first served. No public mempool. That absence of a public mempool is the reason a fill routed here is not sitting in the open waiting to be sandwiched.
• Gas — native ETH. ETH on Ethereum mainnet cannot pay for a transaction on chain 4663; bridge first.

USDG is native here

Global Dollar (USDG) from Paxos is the canonical stablecoin of the chain, at 0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168 with 6 decimals. It supports EIP-3009 transferWithAuthorization, with the EIP-712 domain Global Dollar version 1.

This is why the USDG rail exists at all: the desk can pay a real dollar stablecoin on the same chain the trade happened, with no bridge in the settlement path. See USDG.

Getting funds here

Use the canonical Arbitrum bridge for the safest route — deposits typically arrive in about ten minutes — or an intent-based provider if you want speed. You need ETH on chain 4663 to pay gas before you can trade or claim.