Architecture

How StonkBrokerChain Works

StonkBrokerChain is an Arbitrum Orbit chain — the same Nitro technology as Arbitrum One, deployed as an app-specific chain. It is a Layer 3: it settles to Robinhood Chain, which is itself an Arbitrum Layer 2 on Ethereum.

The stack

Ethereum (L1)
   ▲  settles
Robinhood Chain (L2, chain 4663)
   ▲  settles
StonkBrokerChain (L3, gas = STONKBROKER)

The moving parts

Sequencer — orders transactions and mints blocks (one block per transaction, instant confirmation for users). It runs the chain’s RPC.
Batch poster — periodically posts compressed transaction batches to the SequencerInbox on Robinhood Chain. This makes history durable: anyone can reconstruct the chain from parent-chain data.
Validator (BoLD staker) — posts assertions of chain state to the Rollup contract, bonded with stake. Confirmed assertions are what let withdrawals exit.
Canonical bridge — the Inbox/Bridge/Outbox contract set on Robinhood Chain. It escrows $STONKBROKER on the parent and mirrors it as the native coin on the child.

The custom gas token

Orbit chains may designate any parent-chain ERC-20 as their native gas token at creation. StonkBrokerChain was created with the $STONKBROKER token on Robinhood Chain as its gas token — recorded immutably in the bridge (ERC20Bridge.nativeToken()).

Deposits arrive as the native coin — the balance wallets show and the thing gas is paid in.
There is no ETH on StonkBrokerChain. Fees, msg.value, and balances are all $STONKBROKER.
Gas fees collected by the network accrue in $STONKBROKER.

EVM equivalence

Nitro runs an unmodified EVM through ArbOS. Contracts, tooling, indexers, and wallets that support Arbitrum One work on StonkBrokerChain without modification — only the chain ID, RPC, and gas currency differ.