Contract 0xfd4a395cc4ba...974fa5980dfe

Token

0xfd4a395cc4ba...974fa5980dfe

FrontierContract #9,058Exact Bytecode MatchEdit this contract

Deployed February 17, 2016 (10 years ago)Block 1,015,928

Byte-identical deployment of: Standard ethereum.org tutorial token (Homestead, Mar 2016): name/symbol/decimals metadata, a public balanceOf mapping and an overf

Frontier EraVerified Source

Historical Significance

The canonical 'create your own token' contract from the ethereum.org tutorial, one of the most-copied teaching contracts of the Homestead era.

Context

Compiled with soljson-v0.2.0 (optimizer ON); exact match of the 716-byte runtime. One of 212 byte-identical deployments.

Token Information

Decimals

Key Facts

Deployer

0xc3e1f2...167fab

Deployment Block

1,015,928

Deployment Date

Feb 17, 2016, 03:35 AM

Code Size

1.3 KB

Gas at Deploy

276,292

Deployment Transaction: 0x8d29165b409f6370...f0df87c9ba6431c4

Source Verified

SolidityExact bytecode match(1,344 bytes)

Compiler: soljson

View verification proof

Exact runtime bytecode match. Runtime: 716 bytes (byte-for-byte), compiled with soljson-v0.2.0+commit.4dc2445e, optimizer ON. The on-chain creation (1408 bytes) appends ABI-encoded constructor args (initialSupply, tokenName, decimalUnits, tokenSymbol) to the init code; the 716-byte runtime is the shared cluster invariant.

Heuristic Analysis

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

Detected Type: Token

Has ERC-20-like patterns

Frontier Era

The initial release of Ethereum. A bare-bones implementation for technical users.

Block span: 0 — 1,149,999

July 30, 2015 — March 14, 2016

Bytecode Overview

Opcodes1,344

Unique Opcodes129

Jump Instructions55

Storage Operations37

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

View Verification Proof

Show source code (Solidity)

contract Token {
    string public name;
    string public symbol;
    uint8 public decimals;
    mapping (address => uint256) public balanceOf;
    event Transfer(address indexed from, address indexed to, uint256 value);
    function Token(uint256 initialSupply, string tokenName, uint8 decimalUnits, string tokenSymbol) {
        balanceOf[msg.sender] = initialSupply;
        name = tokenName;
        symbol = tokenSymbol;
        decimals = decimalUnits;
    }
    function transfer(address _to, uint256 _value) {
        if (balanceOf[msg.sender] < _value) throw;
        if (balanceOf[_to] + _value < balanceOf[_to]) throw;
        balanceOf[msg.sender] -= _value;
        balanceOf[_to] += _value;
        Transfer(msg.sender, _to, _value);
    }
}

External Links

Etherscan Verified Source (if any)

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