A five-part series on ERC-4337 and EIP-7702 for self-custody users — what a smart account is, how bundlers and paymasters work, why EIP-7702 changes EOA risk, and how Coinbase Smart Wallet, Safe, and Argent compare.
BundleBear shows 1.07B UserOps and 56.7M smart accounts. Here is why an EOA is structurally limited and what a smart account does instead.
8 min read · intermediate
A plain-spoken walkthrough of ERC-4337's six roles, the UserOperation struct, EntryPoint v0.6 vs v0.7, paymasters, and the public alt-mempool.
8 min read · intermediate
EIP-7702 lets a normal EOA temporarily run smart-contract code at the same address. It is useful — and it created a new one-signature phishing class.
3 min read · intermediate
A practical, opinionated comparison of Coinbase Smart Wallet, Safe, Argent, and the rest of the field — recovery models, chain coverage, and Zelcore pairing tips.
9 min read · intermediate
The operational pitfalls of smart accounts in 2026: cross-chain address drift, recovery models that fail closed, signing schemes that don't shake hands with hardware, and a checklist.
10 min read · intermediate
