Contract Source Code:
File 1 of 1 : HAND
pragma solidity ^0.4.19;
library SafeMath {
function mul(uint256 a, uint256 b) internal constant returns (uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal constant returns (uint256) {
// assert(b > 0); // Solidity automatically throws when dividing by 0
uint256 c = a / b;
return c;
}
function sub(uint256 a, uint256 b) internal constant returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal constant returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
contract HAND{
using SafeMath for uint256;
uint256 constant MAX_UINT256 = 2**256 - 1;
uint256 _initialAmount = 0;
uint256 public publicToken = 4*10**11; // 40% of total, for public sale
uint256 public maxSupply = 10**12;
address public contract_owner;
uint256 public exchangeRate = 3900000; // exchangeRate for public sale, token per ETH
bool public icoOpen = false; // whether ICO is open and accept public investment
address privateSaleAdd = 0x85e4FE33c590b8A5812fBF926a0f9fe64E6d8b35;
mapping (address => uint256) balances;
mapping (address => mapping (address => uint256)) allowed;
// lock struct for founder
struct founderLock {
uint256 amount;
uint256 startTime;
uint remainRound;
uint totalRound;
uint256 period;
}
mapping (address => founderLock) public founderLockance;
mapping (address => bool) isFreezed;
// uint256 totalSupply;
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
event FounderUnlock(address _sender, uint256 _amount);
/*
NOTE:
The following variables are OPTIONAL vanities. One does not have to include them.
*/
string public name = "ShowHand"; //fancy name: eg Simon Bucks
uint8 public decimals = 0; //How many decimals to show.
string public symbol = "HAND"; //An identifier: eg SBX
/**
* @dev Fix for the ERC20 short address attack.
*/
modifier onlyPayloadSize(uint size) {
require(msg.data.length >= size + 4);
_;
}
modifier onlyOwner() {
require(msg.sender == contract_owner);
_;
}
modifier inIco() {
require(icoOpen==true);
_;
}
// token distribution, 60% in this part
address address1 = 0x85e4FE33c590b8A5812fBF926a0f9fe64E6d8b35;
address address2 = 0x5af6353F2BB222DF6FCD82065ed2e6db1bB12291;
address address3 = 0x6c24A6EfdfF15230EE284E2E72D86656ac752e48;
address address4 = 0xCB946d83617eDb6fbCa19148AD83e17Ea7B67294;
address address5 = 0x76360A75dC6e4bC5c6C0a20A4B74b8823fAFad8C;
address address6 = 0x356399eE0ebCB6AfB13dF33168fD2CC54Ba219C2;
address address7 = 0x8b46b43cA5412311A5Dfa08EF1149B5942B5FE22;
address address8 = 0xA51551B57CB4e37Ea20B3226ceA61ebc7135a11a;
address address9 = 0x174bC643442bE89265500E6C2c236D32248A4FaE;
address address10 = 0x0D78E82ECEd57aC3CE65fE3B828f4d52fF712f31;
address address11 = 0xe31062592358Cd489Bdc09e8217543C8cc3D5C1C;
address address12 = 0x0DB8c855C4BB0efd5a1c32de2362c5ABCFa4CA33;
address address13 = 0xF25A3ccDC54A746d56A90197d911d9a1f27cF512;
address address14 = 0x102d36210d312FB9A9Cf5f5c3A293a8f6598BD50;
address address15 = 0x8Dd1cDD513b05D07726a6F8C75b57602991a9c34;
address address16 = 0x9d566BCc1BDda779a00a1D44E0b4cA07FB68EFEF;
address address17 = 0x1cfCe9A13aBC3381100e85BFA21160C98f8B103D;
address address18 = 0x61F0c924C0F91f4d17c82C534cfaF716A7893c13;
address address19 = 0xE76c0618Dd52403ad1907D3BCbF930226bFEa46B;
address address20 = 0xeF2f04dbd3E3aD126979646383c94Fd29E29de9F;
function HAND() public {
// set sender as contract_owner
contract_owner = msg.sender;
_initialAmount += publicToken;
setFounderLock(address1, 800*10**8, 4, 180 days);
setFounderLock(address2, 40*10**8, 4, 180 days);
setFounderLock(address3, 5*10**8, 4, 180 days);
setFounderLock(address4, 5*10**8, 4, 180 days);
setFounderLock(address5, 300*10**8, 4, 180 days);
setFounderLock(address6, 200*10**8, 4, 180 days);
setFounderLock(address7, 100*10**8, 4, 180 days);
setFounderLock(address8, 50*10**8, 4, 180 days);
setFounderLock(address9, 600*10**8, 4, 180 days);
setFounderLock(address10, 150*10**8, 4, 180 days);
setFounderLock(address11, 100*10**8, 4, 180 days);
setFounderLock(address12, 800*10**8, 4, 180 days);
setFounderLock(address13, 2400*10**8, 4, 180 days);
setFounderLock(address14, 100*10**8, 4, 180 days);
setFounderLock(address15, 135*10**8, 4, 180 days);
setFounderLock(address16, 25*10**8, 4, 180 days);
setFounderLock(address17, 20*10**8, 4, 180 days);
setFounderLock(address18, 40*10**8, 4, 180 days);
setFounderLock(address19, 20*10**8, 4, 180 days);
setFounderLock(address20, 110*10**8, 4, 180 days);
}
function totalSupply() constant returns (uint256 _totalSupply){
_totalSupply = _initialAmount;
}
function transfer(address _to, uint256 _value) public returns (bool success) {
//Default assumes totalSupply can't be over max (2^256 - 1).
//If your token leaves out totalSupply and can issue more tokens as time goes on, you need to check if it doesn't wrap.
//Replace the if with this one instead.
//require(balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]);
require(balances[msg.sender] >= _value);
require(isFreezed[msg.sender]==false);
balances[msg.sender] -= _value;
balances[_to] += _value;
Transfer(msg.sender, _to, _value);
return true;
}
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//same as above. Replace this line with the following if you want to protect against wrapping uints.
//require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]);
uint256 allowance = allowed[_from][msg.sender];
require(balances[_from] >= _value && allowance >= _value);
balances[_to] += _value;
balances[_from] -= _value;
if (allowance < MAX_UINT256) {
allowed[_from][msg.sender] -= _value;
}
Transfer(_from, _to, _value);
return true;
}
function balanceOf(address _owner) view public returns (uint256 balance) {
return balances[_owner];
}
function approve(address _spender, uint256 _value) public returns (bool success) {
require(isFreezed[msg.sender]==false);
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender)
view public returns (uint256 remaining) {
return allowed[_owner][_spender];
}
function multisend(address[] addrs, uint256 _value)
{
uint length = addrs.length;
require(_value * length <= balances[msg.sender]);
uint i = 0;
while (i < length) {
transfer(addrs[i], _value);
i ++;
}
}
// lock token of founder for periodically release
// _address: founder address;
// _value: totoal locked token;
// _round: rounds founder could withdraw;
// _period: interval time between two rounds
function setFounderLock(address _address, uint256 _value, uint _round, uint256 _period) internal onlyOwner{
founderLockance[_address].amount = _value;
founderLockance[_address].startTime = now;
founderLockance[_address].remainRound = _round;
founderLockance[_address].totalRound = _round;
founderLockance[_address].period = _period;
}
// allow locked token to be obtained for founder
function unlockFounder () {
require(now >= founderLockance[msg.sender].startTime + (founderLockance[msg.sender].totalRound - founderLockance[msg.sender].remainRound + 1) * founderLockance[msg.sender].period);
require(founderLockance[msg.sender].remainRound > 0);
uint256 changeAmount = founderLockance[msg.sender].amount.div(founderLockance[msg.sender].remainRound);
balances[msg.sender] += changeAmount;
founderLockance[msg.sender].amount -= changeAmount;
_initialAmount += changeAmount;
founderLockance[msg.sender].remainRound --;
FounderUnlock(msg.sender, changeAmount);
}
function freezeAccount (address _target) onlyOwner {
isFreezed[_target] = true;
}
function unfreezeAccount (address _target) onlyOwner {
isFreezed[_target] = false;
}
function ownerUnlock (address _target, uint256 _value) onlyOwner {
require(founderLockance[_target].amount >= _value);
founderLockance[_target].amount -= _value;
balances[_target] += _value;
_initialAmount += _value;
}
// starts ICO
function openIco () onlyOwner{
icoOpen = true;
}
// ends ICO
function closeIco () onlyOwner inIco{
icoOpen = false;
}
// transfer all unsold token to bounty balance;
function weAreClosed () onlyOwner{
balances[contract_owner] += publicToken;
transfer(privateSaleAdd, publicToken);
publicToken = 0;
}
// change rate of public sale
function changeRate (uint256 _rate) onlyOwner{
exchangeRate = _rate;
}
// withdraw ETH from contract
function withdraw() onlyOwner{
contract_owner.transfer(this.balance);
}
// fallback function for receive ETH during ICO
function () payable inIco{
require(msg.value >= 10**18);
uint256 tokenChange = (msg.value * exchangeRate).div(10**18);
require(tokenChange <= publicToken);
balances[msg.sender] += tokenChange;
publicToken = publicToken.sub(tokenChange);
}
}