Robinhood Chain

Plouto is deployed to Robinhood Chain mainnet and nowhere else. There is no testnet deployment; the test suite forks mainnet instead, so it exercises the real Pons contracts rather than stand-ins.

Network parameters

The chain ID was confirmed directly against the live RPC: eth_chainId returns 0x1237, which is 4663.

Adding the network

Most wallets can add the network from the parameters above. Programmatically:

{  "chainId": "0x1237",  "chainName": "Robinhood Chain",  "nativeCurrency": { "name": "Ether", "symbol": "ETH", "decimals": 18 },  "rpcUrls": ["https://rpc.mainnet.chain.robinhood.com"],  "blockExplorerUrls": ["https://robinhoodchain.blockscout.com"]}

The Plouto interface offers a one-click network switch whenever a connected wallet is on the wrong chain, so you rarely need to do this by hand. See connect a wallet.

Why the chain ID is checked on chain

BuybackExecutor stores an expectedChainId as an immutable and reverts with WrongChain if block.chainid does not match it at execution time.

if (block.chainid != expectedChainId) revert WrongChain(expectedChainId, block.chainid);

Cheap insurance against a replayed transaction or a misconfigured fork ever executing a real buyback against the wrong network's liquidity.

Gas

Gas is paid in ETH. Prices observed while building this protocol were in the sub-gwei range — a full deployment of all five contracts simulated at roughly 0.00084 ETH in total.

That is not a promise about future gas costs. It is recorded because a reader deciding whether a small stake is economical deserves an order of magnitude rather than a shrug.

Official references

• Robinhood Chain documentation — https://docs.robinhood.com/chain/
• Connecting — https://docs.robinhood.com/chain/connecting/
• Contracts — https://docs.robinhood.com/chain/contracts/
• Pons V2 — https://docs.ponsfamily.com/v2