Fixed supply of 21 million units at eight decimals, all held by the deployer.
Historical Significance
The ethereum.org token tutorial is where most people who deployed a token in this period started, and this is its opening form: a balance mapping, a guarded subtraction and the metadata a wallet needs to show a name. It has no allowance, so nothing can spend on a holder's behalf and no exchange or escrow can be given a limit. That gap is exactly what ERC-20 was written to close, and copies like this one are the before picture.
Context
Deployed in October 2016 during the Homestead era.
Token Information
Key Facts
Description
The whole supply is credited to the deploying account at creation and can only move through a single transfer call. There is no approval or allowance system, no minting and no owner. The constructor rejects any ether sent with the deployment and the fallback function throws, so the contract can never take custody of ether.
Source Verified
Historian Categories
Heuristic Analysis
The following characteristics were detected through bytecode analysis and may not be accurate.
DAO Fork Era
The controversial fork to recover funds from The DAO hack.
Bytecode Overview
Verified Source Available
Source verified through compiler archaeology and exact bytecode matching.
View Verification ProofShow source code (Solidity)
// Submitted by EthereumHistory (ethereumhistory.com)
contract token {
string public name;
string public symbol;
uint8 public decimals;
uint256 public totalSupply;
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) {
if (msg.value > 0) throw;
balanceOf[msg.sender] = initialSupply;
totalSupply = 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);
}
function () {
throw;
}
}External Links
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