OPERATIONS · operating reference

ERC-4337 UserOperation guide

A bounded guide to smart-account operations, bundler receipts, EntryPoint processing, paymasters, and linked network transactions.

Reference center

What this page establishes

A UserOperation is handled through EntryPoint rather than submitted as an ordinary account transaction.

Bundler and chain receipts answer different parts of the execution story.

A paymaster field can indicate sponsored gas but does not prove who ultimately bore every cost.

ERC-4337 specification

Practical review sequence

1

Verify the network, sender, nonce, EntryPoint, and linked transaction.

2

Keep signatures and raw call data out of notes.

3

Inspect the linked transaction receipt and expected asset events.

Trace a smart operation

Recheck primary sources before acting

Contracts, names, issuers, governance, bridges, providers, networks, fees, and access rules can change. CoinPork provides an operating checklist, not financial, legal, tax, accounting, or cybersecurity advice.