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Token

0x4aa9dd1eb999...5d342e711228
ByzantiumSource VerifiedEdit this contract
Deployed August 18, 2018 (8 years ago)Block 6,171,975

Throwaway contract created in bulk by a gas-burning factory; each copy stores only the bytes32 name "WeSkipTheLine".

Byzantium EraVerified Source

Historical Significance

A physical trace of block stuffing. The attack itself leaves little onchain evidence beyond full blocks, but this operator chose to burn gas by creating contracts, so every stuffed transaction left permanent, labelled debris behind it. The name spells out the intent.

Key Facts
Deployment Block
6,171,975
Deployment Date
Aug 18, 2018, 10:17 PM
Code Size
166.0 B

Description

Despite the name, this is not a token. The contract has one storage slot, a public bytes32 called Name, set once in the constructor, and nothing else. Every copy checked holds the same value, "WeSkipTheLine".

It was created by a factory contract whose only functions are Name() and consumeGas(uint256). Calling consumeGas(15) deployed fifteen of these contracts in one transaction, and the creating transaction used every unit of gas it was given. The contracts are the byproduct; the point was to consume block space. Filling blocks with expensive transactions so that nobody else's transaction can get in is block stuffing, and the stored name reads like the operator's own joke about it.

The transactions date from August 2018, a period when block stuffing was being used to win last-bidder games on Ethereum. The source was compiled with solc 0.4.22 and the optimizer off. The runtime code matches the deployed bytecode; only the trailing swarm metadata hash differs, because the EthereumHistory attribution comment changes the source text. Sourcify records this as a partial match and Etherscan shows it as verified.

Source Verified

Solidityeh_crack_source_verified
Compiler: v0.4.22

Bytecode Overview

Opcodes166
Unique Opcodes67
Jump Instructions10
Storage Operations1

External Links