Sweep

Unclassified

0x00188bf86a53...b345adb260a7

ByzantiumExact Bytecode MatchEdit this contract

Bytecode verified via sibling

This contract shares identical runtime bytecode with Sweeper (0xeb15f63a...) which has been verified through compiler archaeology.

Deployed January 23, 2018 (8 years ago)Block 4,960,224

ETH sweep-to-fixed-recipient — fallback forwards the contract's entire balance to `0xd293a88c…8d4` via `.send()` and reverts on failure. Massive cluster of 1899 identical deployments — likely deposit-address contracts for a single custodian.

Byzantium EraVerified Source

Key Facts

Deployer

0x4dcee5...1d07ec

Deployment Block

4,960,224

Deployment Date

Jan 23, 2018, 09:11 PM

Code Size

136.0 B

Gas at Deploy

90,857

Deployment Transaction: 0x6adfb2523acc1c68...bcc7da25e6cc8e37

Description

One of 1899 identical ETH-sweep contracts, all forwarding to the hardcoded destination 0xd293a88c7ef49dad48b58bdf87a426ffaab338d4. The payable fallback loads the contract's own balance via this.balance and forwards it via .send(), wrapped in require() to revert if the send fails. No other functions, no configurable state — the destination is baked into the runtime bytecode as a PUSH20 literal. Consistent with a deposit-address factory pattern where each address is unique but the destination is shared. Compiled with solc 0.4.15+commit.bbb8e64f optimizer ON runs=200. Exact code match; only trailing 34-byte Swarm metadata differs.

Source Verified

SolidityExact bytecode match(136 bytes)

Compiler: 0.4.15+

View verification proof

Exact match on 102 code bytes with solc 0.4.15 optimizer ON runs=200. Only the trailing 34-byte Swarm metadata hash differs (source formatting delta). Cluster: 1,900 identical-runtime deployments 2018-01-23 through 2018-01-25 from a single deployer.

Heuristic Analysis

The following characteristics were detected through bytecode analysis and may not be accurate.

Detected Type: Unclassified

Byzantium Era

First Metropolis hard fork. Added zk-SNARK precompiles, REVERT opcode, and staticcall.

Block span: 4,370,000 — 7,279,999

October 16, 2017 — February 28, 2019

Bytecode Overview

Opcodes136

Unique Opcodes77

Jump Instructions4

Storage Operations0

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

View Verification Proof

Show source code (Solidity)

// Submitted by EthereumHistory (ethereumhistory.com)
pragma solidity ^0.4.0;

contract Sweeper {
    function () payable {
        address(0xd293a88c7ef49dad48b58bdf87a426ffaab338d4).transfer(this.balance);
    }
}

External Links

Etherscan Verified Source (if any)

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