ERC-4337

ERC-4337 is the account-abstraction standard that lets a smart-contract wallet, rather than an externally owned key, initiate transactions — enabling gas sponsorship, batched actions, and custom signature schemes. Robinhood Chain supports it first-class, publishing EntryPoint and SenderCreator addresses for versions 0.6, 0.7, and 0.8, so the chain's day-one wallet and paymaster infrastructure works without bespoke deployment.