Robinhood Chain Lighter Domains

What is a Lighter Domain?

Lighter Domains are independent Lighter instances with separate execution, sequencing, blockspace, and liquidity. That separation is intentional — allowing markets to serve different ecosystems, partners, and regulatory requirements. Long-term, they are designed to preserve separation where it matters while enabling future connectivity through proof aggregation and verified messaging.

The Robinhood Chain Instance is a dedicated Lighter instance deployed on the Robinhood Chain. It is not the same as Lighter Core — it has its own contracts, sequencer, blockspace, and liquidity.

Key Information

Deposit

Direct Deposit (same-chain, on RH Chain) — preferred for RH Wallet

Call the deposit method on the Lighter contract directly:

function deposit(
    address _to,
    uint16  _assetIndex,
    TxTypes.RouteType _routeType,   // uint8
    uint256 _amount
) external payable

_to          = <recipient address>
_assetIndex  = 3          // USDG
_routeType   = 0
_amount      = 1000000    // 1 USDG = 1e6 (6 decimals)

Anyone can call deposit on behalf of any address. The account is created on the first deposit.

Cross-chain / Intent Address Deposit

For deposits originating from other chains (e.g., Ethereum → Robinhood Chain):

1. Call createIntentAddress to get a deterministic deposit address.
2. Send USDG to that intent address (no deposit() call needed).
3. Lighter monitors the intent address and calls deposit on-chain via CREATE2 (1 block + 1 round trip).
4. The monitoring service credits the user (1 block + 1 round trip).

Withdraw

Two modes, both operational on Robinhood Chain:

• Fast Withdraw — uses Robinhood Chain's soft finality; near-instant.
• Secure Withdraw — standard L2 withdrawal with full finality guarantees.

Learn More

• Lighter Robinhood API Docs