Migrations

Unclassified

0x2e6ba6f5a27c...1547dbfe17ca

ByzantiumSource VerifiedEdit this contract

Bytecode verified via sibling

This contract shares identical runtime bytecode with a verified contract (0x8b8f21e5...) which has been verified through compiler archaeology.

Deployed October 16, 2018 (7 years ago)Block 6,524,582

Migrations 760 sibling — cluster of 15 identical deployments.

Byzantium EraVerified Source

Key Facts

Deployer

0x02802e...3145cf

Deployment Block

6,524,582

Deployment Date

Oct 16, 2018, 07:47 AM

Code Size

760.0 B

Gas at Deploy

277,462

Deployment Transaction: 0xad3b51a39c9fc710...41c042ae7f31b833

Description

Sibling cluster of 15 identical deployments. Compiled with solc 0.4.24 optimizer OFF. Exact code match; only trailing 34-byte Swarm metadata differs. Etherscan-verified with EthereumHistory attribution.

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

Opcodes760

Unique Opcodes91

Jump Instructions38

Storage Operations7

Verified Source Available

This contract has verified source code on Etherscan.

Verified on Etherscan (similar match)

Show source code (Solidity)

// Submitted by EthereumHistory (ethereumhistory.com)
pragma solidity ^0.4.24;

contract Migrations {
  address public owner;
  uint public last_completed_migration;

  modifier restricted() {
    if (msg.sender == owner) _;
  }

  constructor() public {
    owner = msg.sender;
  }

  function setCompleted(uint completed) public restricted {
    last_completed_migration = completed;
  }

  function upgrade(address new_address) public restricted {
    Migrations upgraded = Migrations(new_address);
    upgraded.setCompleted(last_completed_migration);
  }
}

External Links

Etherscan Verified Source (if any)

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