v07-sponsored-usdc-transfer-kernel · EntryPoint Intelligence

Bundler 0x4337…98b6 Unattributed bundler #5 (EOA) evidence level: hint submitted one v0.7 UserOperation: account 0x49d3…6c11 asked to transfer 7990000 base units of token 0xb97e…8a6e USDC (native, Circle) evidence level: primary source to 0x8a02…3e22 (= 7.99 USDC; token symbol and decimals read from the contract at block 97840166); the op succeeded; gas sponsored by 0x7777…834c Pimlico singleton paymaster (EntryPoint v0.7) evidence level: primary source.

Transaction: 0x404fe4fce3a98ab0df43e3950a3d4b72608dff56feb5fdfdff26ee2aa7309010 explained →
Block: 97,840,166
Outer status: success grade: observed
UserOperations: 1 in 1 handleOps call
Selector: 0x765e827f

How to read the evidence markers

Evidence levels (how strong an address label is)

evidence level: primary source The vendor or protocol itself publishes this exact address
evidence level: self-description What the contract says about itself via a getter; contracts can claim any name
evidence level: cluster Shares a key, getter or bytecode with labelled addresses: same machinery, not proof of the same operator
evidence level: hint Ranking, explorer tag, metadata or third-party label: a clue, never proof
evidence level: unlabelled No registry label. In running text, an address without a marker has no label.

Evidence grades (how a value was obtained), strongest first

grade: observed grade: decoded grade: recomputed grade: recovered grade: contract read grade: inferred grade: unknown

Weaker grades are set in italics. Hover or focus a marker for its definition; full definitions.

Who was involved

Bundler: 0x4337…98b6 Unattributed bundler #5 (EOA) evidence level: hint
sent and paid for the outer transaction · grade: observed
Called contract: 0x0000…a032 EntryPoint v0.7 evidence level: primary source
grade: observed
EntryPoint: 0x0000…a032 EntryPoint v0.7 evidence level: primary source
v0.7 handleOps · grade: decoded
Beneficiary: 0x4337…98b6 Unattributed bundler #5 (EOA) evidence level: hint
the beneficiary argument of handleOps · same address as the bundler · grade: decoded

Operations: what was asked, what happened

Operation 1

v0.7 succeeded index 0

Account 0x49d3…6c11 asked to transfer 7990000 base units of token 0xb97e…8a6e USDC (native, Circle) evidence level: primary source to 0x8a02…3e22 (= 7.99 USDC; token symbol and decimals read from the contract at block 97840166); the op succeeded; gas sponsored by 0x7777…834c Pimlico singleton paymaster (EntryPoint v0.7) evidence level: primary source.

Who was involved

Smart account: 0x49d3…6c11 evidence level: unlabelled
the sender field of UserOperationEvent · grade: observed
Account code: 0xbac8…4b4d ZeroDev Kernel v0.3.1 implementation evidence level: primary source
contract code and storage read at block 97840166 · EIP-1967 proxy · grade: contract read
Paymaster: 0x7777…834c Pimlico singleton paymaster (EntryPoint v0.7) evidence level: primary source
the operation's paymasterAndData field · grade: decoded
Signer key: 0x3a26…5b94 evidence level: unlabelled
signature scheme personal_sign(userOpHash), an EOA (secp256k1) key; matches the on-chain owner getter Kernel v3 ECDSAValidator.ecdsaValidatorStorage=0x3a267d34b598cdc512b407f8543c850fdc225b94 at block 97840166. A key, not a person. · grade: contract read

What was asked

Entry function on the account: execute(bytes32,bytes) grade: decoded

Call 1 transfer 7990000 base units of token 0xb97e…8a6e USDC (native, Circle) evidence level: primary source to 0x8a02…3e22 (= 7.99 USDC; token symbol and decimals read from the contract at block 97840166)
target 0xb97e…8a6e USDC (native, Circle) evidence level: primary source · function transfer(address,uint256) grade: decoded · via an ERC-7579 single execution

What happened

The outer transaction reported success grade: observed; this UserOperation succeeded grade: observed.

Call 1 confirmed by an exactly matching log grade: observeda Transfer with exactly this token, sender, recipient and amount appears in this op's execution segment

Token movements logged during this operation:

ERC-20 transfer of 7.990000 USDC 0xb97e…8a6e USDC (native, Circle) evidence level: primary source from 0x49d3…6c11 to 0x8a02…3e22 out of the account, during execution grade: observed

Money for this operation

The EntryPoint charged this operation 0.001495 AVAX (actualGasCost) grade: observed, taken from paymaster deposit 0x777777777777aec03fd955926dbf81597e66834c Pimlico singleton paymaster (EntryPoint v0.7) evidence level: primary source grade: inferred and paid to the beneficiary grade: inferred.

Sponsorship: verifying paymaster: the paymaster pays and no token is charged grade: observed

Money

Outer receipt fee (bundler → chain)

0.001412 AVAX

gas used × effective gas price, paid once

Σ actualGasCost (deposits → beneficiary)

0.001495 AVAX

1 operation charge

The outer fee (what the bundler paid the network) and the per-op charges (what the EntryPoint collected from deposits and paid to the beneficiary) are different quantities. They are listed, never added together; their difference is not 'bundler profit'.

The logs

Receipt logs (4), in order, with the lifecycle phase each belongs to
#	Emitter	Event	Phase
0	`0x7777…834c` Pimlico singleton paymaster (EntryPoint v0.7) evidence level: primary source	`UserOperationSponsored`	validation
1	`0x0000…a032` EntryPoint v0.7 evidence level: primary source	`BeforeExecution`	boundary
2	`0xb97e…8a6e` USDC (native, Circle) evidence level: primary source	`Transfer`	execution
3	`0x0000…a032` EntryPoint v0.7 evidence level: primary source	`UserOperationEvent`	execution

What we can't tell

The signer is a key (address) recovered from the signature. It does not tell you which person, company or bot controls that key.
A paymaster paid the gas charge, but that does not mean the user paid nothing: the paymaster may bill the user off-chain or in a token (see sponsorship mode).
The beneficiary is only where gas compensation was sent; it is not the user, and it is not proof of who runs the bundler.
UserOp success=true only means the account's call did not revert at the top level. Accounts and batch executors can catch inner failures, so individual legs can still have failed.
Names (token symbols, labels) are metadata unless their evidence level says otherwise.
The outer fee is what the bundler paid the network for the whole transaction; it cannot be split fairly across ops or legs, and comparing it with the per-op charges does not give bundler profit.

Rendered from the explain record (schema epi.explain/v1). Address labels and levels come from the current registry. How evidence grades and levels work →