The ethereum.org token tutorial, with a default supply of one hundred
Context
Deployed in September 2015 on the Frontier chain.
Key Facts
Description
The minimal token from the ethereum.org tutorial: one mapping from address to balance, a sendCoin that moves value and emits CoinTransfer, and a public accessor. The whole supply goes to whoever deploys it. This deployment sets the tutorial's fallback supply to one hundred units, small enough that it was plainly made to be handled rather than held. There is no approval mechanism and no total supply variable, so it predates the ERC-20 interface.
Source Verified
Heuristic Analysis
The following characteristics were detected through bytecode analysis and may not be accurate.
Frontier Era
The initial release of Ethereum. A bare-bones implementation for technical users.
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 MyToken {
function token(uint supply) {
if (supply == 0) supply = 100;
coinBalanceOf[msg.sender] = supply;
}
event CoinTransfer(address sender, address receiver, uint amount);
mapping (address => uint) public coinBalanceOf;
function sendCoin(address receiver, uint amount) returns(bool sufficient) {
if (coinBalanceOf[msg.sender] < amount) {
return false;
}
coinBalanceOf[msg.sender] -= amount;
coinBalanceOf[receiver] += amount;
CoinTransfer(msg.sender, receiver, amount);
return true;
}
}External Links
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