2 posts.
Since Pectra, a plain wallet address can carry code. What EIP-7702 delegation actually does, how to spot it over RPC, and why 'no code means EOA' is no longer a safe assumption.
Read →Account abstraction lets a smart contract — not a private key — decide what makes a transaction valid, enabling gasless UX, social recovery, session keys, and batching. This explainer covers the EOA-vs-contract-account split, how ERC-4337 adds AA on top of Ethereum with UserOperations and bundlers, and how chains like zkSync and Starknet make accounts contracts natively.
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