DinastyCoinToken(DCT)

Token

0x3693fd44b16d...b3170dc11466

HomesteadContract #12KExact Bytecode MatchEdit this contract

Deployed March 14, 2016 (10 years ago)Block 1,148,743

Homestead-era transfer-only token, DinastyCoinToken (DCT), fixed supply 200000000 and 6 decimals.

Homestead EraVerified Source

Context

Deployed in block 1148743 on 2016-03-14, the Homestead launch day. Constructor arguments on-chain decode to name DinastyCoinToken, symbol DCT, decimals 6, and initial supply 200000000.

Token Information

Token Name

DinastyCoinToken

Symbol

DCT

Decimals

Key Facts

Deployer

0x6f6b48...35e3c6

Deployment Block

1,148,743

Deployment Date

Mar 14, 2016, 04:56 PM

Code Size

695.0 B

Gas at Deploy

317,656

Transactions by Year

20162

Deployment Transaction: 0x47865d091aea696b...4ac800e7d3693d2b

Source Verified

SolidityExact bytecode match(695 bytes)

Compiler: native

View verification proof

Exact byte-for-byte match on both creation (1133 bytes init code) and runtime (695 bytes). Compiled with native C++ solc v0.2.0 (webthree-umbrella), optimizer ON. Constructor includes default supply guard: if (initialSupply == 0) initialSupply = 1000000.

Heuristic Analysis

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

Detected Type: Token

Has ERC-20-like patterns

Homestead Era

The first planned hard fork. Removed the canary contract, adjusted gas costs.

Block span: 1,150,000 — 1,919,999

March 14, 2016 — July 20, 2016

Bytecode Overview

Opcodes695

Unique Opcodes97

Jump Instructions30

Storage Operations14

Verified Source Available

Source verified through compiler archaeology and exact bytecode matching.

View Verification Proof

Show source code (Solidity)

contract DinastyCoinToken {
    mapping (address => uint256) public balanceOf;
    string public name;
    string public symbol;
    uint8 public decimals;

    event Transfer(address indexed from, address indexed to, uint256 value);

    function DinastyCoinToken(uint256 initialSupply, string tokenName, uint8 decimalUnits, string tokenSymbol) {
        if (initialSupply == 0) initialSupply = 1000000;
        balanceOf[msg.sender] = initialSupply;
        name = tokenName;
        symbol = tokenSymbol;
        decimals = decimalUnits;
    }

    function transfer(address _to, uint256 _value) {
        if (balanceOf[msg.sender] < _value || balanceOf[_to] + _value < balanceOf[_to]) throw;
        Transfer(msg.sender, _to, _value);
        balanceOf[msg.sender] -= _value;
        balanceOf[_to] += _value;
    }
}

External Links

Etherscan Verified Source (if any)

Related contracts

token

Same era

Bare Homestead-era token (Mar 14 2016): public balanceOf mapping + a single unchecked transfer firing the standard Transfer event.

0xc77f06...494c69March 14, 2016

token

Same era

Minimal Homestead-era token shell (Mar 14 2016): just a public balanceOf mapping and its compiler-generated getter, with no other functions.

0x38e1da...41a81aMarch 14, 2016

CampusCoin

Same era

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

0x00f0b1...e6fcd2March 16, 2016

Retch Mining Futures

Same era

Buy/sell token deployed by an early Ethermine miner 7 days after the Homestead fork, still active 10 years later.

0x9c2351...83e874March 21, 2016

NetsCoin

Same era

The ethereum.org 'advanced' MyToken (Homestead, Mar 2016): an issuer-minted token with mintToken, freezeAccount/FrozenFunds and the standard Transfer event.

0x1bf963...c9caabMarch 21, 2016

Poker Chips

Same era

Early ERC-20 token built from the ethereum.org tutorial. Features approveAndCall for token-contract interaction and a spentAllowance tracking pattern.

0x002a13...164639March 21, 2016