v07-failed-inner-userop · EntryPoint Intelligence

Bundler 0x4337…98b6 Unattributed bundler #5 (EOA) evidence level: hint submitted one v0.7 UserOperation: account 0xd5f2…2b56 asked to call depositForBurn(...) on 0x28b5…cf5d; the op FAILED; gas sponsored by 0x03df…103b Unattributed paymaster #28 (contract) evidence level: hint.

Transaction: 0x77b4647ea6918be8a39ac32c88745ffb7a817c241db0fe974a7035c61c6d1777 explained →
Block: 97,860,967
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 failed index 0

Account 0xd5f2…2b56 asked to call depositForBurn(...) on 0x28b5…cf5d; the op FAILED; gas sponsored by 0x03df…103b Unattributed paymaster #28 (contract) evidence level: hint.

Who was involved

Smart account: 0xd5f2…2b56 evidence level: unlabelled
the sender field of UserOperationEvent · grade: observed
Account code: 0x9c6e…1aed evidence level: unlabelled
contract code and storage read at block 97860967 · EIP-1967 proxy · grade: contract read
Paymaster: 0x03df…103b Unattributed paymaster #28 (contract) evidence level: hint
the operation's paymasterAndData field · grade: decoded
Signer key: 0x65aa…5a14 evidence level: unlabelled
signature scheme personal_sign(userOpHash), an EOA (secp256k1) key; matches the on-chain owner getter getNativeOwner()=0x65aa0b934419e289c20db2495f5dc56f17f55a14 at block 97860967. A key, not a person. · grade: contract read

What was asked

Entry function on the account: execute(address,uint256,bytes) grade: decoded

Call 1 call depositForBurn(...) on 0x28b5…cf5d
target 0x28b5…cf5d evidence level: unlabelled · function depositForBurn(uint256,uint32,bytes32,address,bytes32,uint256,uint32) grade: decoded · via the account's execute function

What happened

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

Revert reason from UserOperationRevertReason: ERC20: transfer amount exceeds balance grade: observed

Call 1 undone (the operation reverted) grade: observedthe op's execution reverted (UserOperationEvent success=false), so this leg's effects were undone

Money for this operation

The EntryPoint charged this operation 0.001981 AVAX (actualGasCost) grade: observed, taken from paymaster deposit 0x03df76c8c30a88f424cf3cbbc36a1ca02763103b Unattributed paymaster #28 (contract) evidence level: hint grade: inferred and paid to the beneficiary grade: inferred.

Sponsorship: sponsored, terms not visible: a paymaster pays the gas charge from its deposit; its terms (free, token-paid, off-chain billing) are not decodable from this record grade: decoded

The call trace

17 internal calls grade: observed in a trace.

Errors in the call tree:

call to 0xd5f2…2b56 evidence level: unlabelled execute(address,uint256,bytes): execution reverted · ERC20: transfer amount exceeds balance
call to 0x9c6e…1aed evidence level: unlabelled execute(address,uint256,bytes): execution reverted · ERC20: transfer amount exceeds balance
call to 0x28b5…cf5d evidence level: unlabelled supportsInterface(bytes4): execution reverted
call to 0x555e…3ec8 evidence level: unlabelled supportsInterface(bytes4): execution reverted
call to 0x28b5…cf5d evidence level: unlabelled depositForBurn(uint256,uint32,bytes32,address,bytes32,uint256,uint32): execution reverted · ERC20: transfer amount exceeds balance
call to 0x555e…3ec8 evidence level: unlabelled depositForBurn(uint256,uint32,bytes32,address,bytes32,uint256,uint32): execution reverted · ERC20: transfer amount exceeds balance
call to 0xb97e…8a6e USDC (native, Circle) evidence level: primary source transferFrom(address,address,uint256): execution reverted · ERC20: transfer amount exceeds balance
call to 0x30df…ffe6 evidence level: unlabelled transferFrom(address,address,uint256): execution reverted · ERC20: transfer amount exceeds balance

an error deep in the call tree can be caught by a caller; only the outer status and the UserOp success flag say what persisted

Money

Outer receipt fee (bundler → chain)

0.002017 AVAX

gas used × effective gas price, paid once

Σ actualGasCost (deposits → beneficiary)

0.001981 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 (3), in order, with the lifecycle phase each belongs to
#	Emitter	Event	Phase
0	`0x0000…a032` EntryPoint v0.7 evidence level: primary source	`BeforeExecution`	boundary
1	`0x0000…a032` EntryPoint v0.7 evidence level: primary source	`UserOperationRevertReason`	execution
2	`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.
Some contracts involved are unlabelled: event and function names shown for them are signature-database hints and do not identify the app or protocol.
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 →