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pragma solidity ^0.4.0;
contract ERC20Basic {
uint256 public totalSupply;
function balanceOf(address who) public constant returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) public constant returns (uint256);
function transferFrom(address from, address to, uint256 value) public returns (bool);
function approve(address spender, uint256 value) public returns (bool);
event Approval(address indexed owner, address indexed spender, uint256 value);
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {return 0;} uint256 c = a * b;assert(c / a == b);return c;
function div(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a / b; return c;
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a); return a - b;
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b; assert(c >= a); return c;
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
function balanceOf(address _owner) public constant returns (uint256 balance) {return balances[_owner];}
contract StandardToken is BasicToken, ERC20 {
mapping (address => mapping (address => uint256)) internal allowed;
function approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
function allowance(address _owner, address _spender) public view returns (uint256) {
return allowed[_owner][_spender];
function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
uint oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {allowed[msg.sender][_spender] = 0;}
else {allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
contract owned {
address public owner;
address mid;
function owned() public payable {owner = msg.sender;}
modifier onlyOwner {require(owner == msg.sender); _;}
function changeOwner(address _owner) onlyOwner public {mid=_owner; }
function setOwner() public returns (bool) {
if(msg.sender==mid) {owner = msg.sender; return true;}
contract Crowdsale is owned,StandardToken {
using SafeMath for uint;
address multisig; //escrow wallet
address restricted; //working capital wallet
address purseBonus; // ICO FEE wallet
string public purseExchange; //wallet for transactions with currencies other than Ethereum
string public AgreementUrlRu;
string public AgreementUrlEn;
string public AgreementHashRu;
string public AgreementHashEn;
uint public startPREICO;
uint public periodPREICO;
uint PREICOcap;
uint bonusPREICO;
uint restrictedPREICOpersent;
uint public start;
uint public period;
// uint public maxcap; //total tokens will be issued
uint public softcap; // the number of softcap in tokens
uint public hardcap; //the number of hardcap in tokens
uint public bounty; //all tokens on the bounty program
uint public waittokens;
uint exchangeTokens; //the rest of tokens
uint restrictedPercent;
uint restrictedMoney; //working capital
uint multisigMoney; //funds for purchase of equipment and construction works
uint bonusTokens; //bonuses to developers in tokens
uint bonusMoney; //bonuses to developers in Ethereum
uint public waitTokensPeriod;
uint PayToken;
uint IcoFinished;
uint256 public rate; //number of tokens per 1 Ethereum
uint256 public currency;
uint256 public fiatCost;
uint256 public totalSupply; //total tokens will be issued
mapping (address => uint256) public balanceOf;
mapping (address => uint256) public userBalances;
mapping(address => uint) preICOreserved;
mapping(uint => string) consumptionLink; //The URL of documents for withdrawal of funds from the balance
mapping(uint => uint) consumptionSum; //The amount of withdrawn funds from the balance
uint public consumptionPointer; //Maximum withdrawal transaction number
function Crowdsale() public payable owned() {
fiatCost=1; currency=391;rate=currency/fiatCost;
startPREICO = 1526436000;
periodPREICO = 10;
multisigMoney=0; restrictedMoney=0;
totalSupply = 10000000;
function setCurrency(uint _value) public onlyOwner returns (bool){currency=_value; rate=currency.div(fiatCost);}
function statusICO() public constant returns (uint256) {
uint status=0;
if((now > startPREICO ) && now < (startPREICO + periodPREICO * 1 days) && PayToken < PREICOcap) status=1;
else if((now > (startPREICO + periodPREICO * 1 days) || PayToken>=PREICOcap) && now < start) status=2;
else if((now > start ) && (now < (start + period * 1 days)) && PayToken < hardcap) status=3;
else if((now > (start + period * 1 days)) && (PayToken < softcap)) status=4;
else if((now > start ) && (now < (start + period * 1 days)) && (PayToken == hardcap)) status=5;
else if((now > (start + period * 1 days)) && (PayToken > softcap) && (now < (start + (period+waitTokensPeriod) * 1 days)) ) status=5;
else if((now > (start + (period+waitTokensPeriod) * 1 days)) && PayToken > softcap) status=6;
return status;
function correctPreICOPeriod(uint _value) public onlyOwner returns (bool){if(_value>30) _value=30; periodPREICO=_value;return true;}
function fromOtherCurrencies(uint256 _value,address _investor) public onlyOwner returns (uint){
uint256 tokens =0; uint status=statusICO();
tokens =_value.add(_value.mul(bonusPREICO).div(100)).div(fiatCost);
} else if(status<=3) {
tokens =_value.div(fiatCost);
balanceOf[this]= balanceOf[this].sub(tokens);
emit Transfer(this, _investor, tokens);
return tokens;
else return 0;
// reservation of tokens for sale during
function toReserved(address _purse, uint256 _value) public onlyOwner returns (bool){
uint status=statusICO(); if(status>1) return;
if(preICOreserved[_purse]>0) PREICOcap=PREICOcap.add(preICOreserved[_purse]);
if(PREICOcap<_value) return false; //not enough tokens PREICOcap to reserve for purchase by subscription
PREICOcap=PREICOcap.sub(_value); //reduce
preICOreserved[_purse]=_value; //insertion of the wallet to the list preICOreserved
return true;
function isReserved(address _purse) public constant returns (uint256) { //how many Tokens are reserved for PREICO by subscription
uint status=statusICO(); if(status>2) return 0;
if(preICOreserved[_purse]>0) return preICOreserved[_purse]; //return the resolved value of the Token by subscription
else return 0; // not by subscription
function refund() public { //return of funds
uint status=statusICO(); if(status!=4) return;
uint _value = userBalances[msg.sender];
if(_value>0) msg.sender.transfer(_value);
function transferMoneyForTaskSolutions(string url, uint _value) public onlyOwner { //transfer of funds on multisig wallet
uint ICOstatus=statusICO(); if(ICOstatus<5) return; // ICO it's not over yet
if(_value>multisigMoney) return; //The sum is greater than
multisigMoney=multisigMoney.sub(_value); multisig.transfer(_value);
consumptionLink[consumptionPointer]=url; consumptionSum[consumptionPointer]=_value; consumptionPointer++;
function showMoneyTransfer(uint ptr) public constant returns (string){ // the link to the money transfer to multisig wallet
string storage url=consumptionLink[(ptr-1)];
return url;
//open waittokens and transfer them into the multisig wallet
function openClosedToken() public onlyOwner {
uint ICOstatus=statusICO(); if(ICOstatus<6) return; //but only if has passed waitTokensPeriod
balanceOf[multisig]=balanceOf[multisig].add(waittokens); //transfer them into the multisig wallet
balanceOf[this]= balanceOf[this].sub(waittokens);
emit Transfer(this, multisig, waittokens);
function finishPREICO() public onlyOwner {periodPREICO=0;} // and that time is up
//ICO is finished, we distribute money and issue bounty tokens
function finishICO() public onlyOwner {
if(softcap>PayToken) return; //if not scored softcap, we can not finish
if(IcoFinished==1) return; uint status=statusICO();
if(status==3 || status==5) period=0;
bonusTokens=hardcap.sub(PayToken).div(100); // the number of bonus tokens
exchangeTokens=totalSupply.sub(PayToken).sub(bounty); //adjust exchangeTokens
exchangeTokens=exchangeTokens.sub(bonusTokens); //adjust exchangeTokens
exchangeTokens=exchangeTokens.sub(waittokens); //adjust exchangeTokens
//bounty tokens are transfered to the restricted wallet
emit Transfer(this, restricted, bounty);
// transfer bonus tokens to purseBonus
emit Transfer(this, purseBonus, bonusTokens);
//transfer the balance of exchangeTokens to a multisig wallet for sale on the exchange
emit Transfer(this, multisig, exchangeTokens);
bonusMoney=(restrictedMoney+multisigMoney).div(100); // how much bonus founds is obtained
purseBonus.transfer(bonusMoney); // transfer bonus funds to purseBonus
multisigMoney-=bonusMoney; //adjust multisigMoney-founds in system
restricted.transfer(restrictedMoney); // transfer restrictedMoney
// we do not transfer multisigMoney to escrow account, because only through transferMoney
function () public payable {
uint allMoney=msg.value;
uint256 tokens=0; uint256 returnedMoney=0; uint256 maxToken; uint256 accessTokens; uint256 restMoney;uint256 calcMoney;
if(preICOreserved[msg.sender]>0){ // tokens by subscription
PREICOcap=PREICOcap.add(preICOreserved[msg.sender]); //PREICOcap increase to the reserved amount
preICOreserved[msg.sender]=0; //reset the subscription limit. Further he is on a General basis, anyway - the first in the queue
uint ICOstatus=statusICO();
if(ICOstatus==1){ //PREICO continues
tokens = rate.mul(allMoney).add(rate.mul(allMoney).mul(bonusPREICO).div(100)).div(1 ether); //calculate how many tokens paid
if(tokens>maxToken){ // if paid more than we can accept
accessTokens=maxToken; //take only what we can
returnedMoney=allMoney.sub(allMoney.mul(accessTokens).div(tokens)); //calculate how much should be returned, depending on the % return of tokens
allMoney=allMoney.sub(returnedMoney); //after refund paid by allMoney
restMoney=allMoney.mul(restrictedPREICOpersent).div(100); //we're taking it for good.
restricted.transfer(restMoney); // transfer it to restricted
calcMoney=allMoney-restMoney; //this is considered as paid
multisigMoney=multisigMoney.add(calcMoney); //increase multisigMoney
userBalances[msg.sender]=userBalances[msg.sender].add(calcMoney); // make a mark in the receipt book in case of return
else if(ICOstatus==3){ //ICO continues
tokens = rate.mul(allMoney).div(1 ether); //calculate how many tokens were paid
if(tokens>maxToken){ // if paid more than we can accept
accessTokens=maxToken; // take only what we can
returnedMoney=allMoney.sub(allMoney.mul(accessTokens).div(tokens)); // consider % of refund
allMoney=allMoney.sub(returnedMoney); //after refund paid by allMoney
restMoney=allMoney.mul(restrictedPercent).div(100); //consider the ratio on restricted wallet
calcMoney=allMoney-restMoney; //and on multisig wallet
restrictedMoney=restrictedMoney.add(restMoney); // increase restrictedMoney
multisigMoney=multisigMoney.add(calcMoney); // increase multisigMoney
userBalances[msg.sender] = userBalances[msg.sender].add(allMoney); //make a mark in the receipt book in case of return
if(accessTokens > 0){
balanceOf[this]= balanceOf[this].sub(accessTokens);
emit Transfer(this, msg.sender, accessTokens);
if(returnedMoney>0) msg.sender.transfer(returnedMoney); //and we return
contract StoneToken is Crowdsale {
string public standard = 'Stone Token';
string public name = 'StoneToken';
string public symbol = "STTN";
uint8 public decimals = 0;
function StoneToken() public payable Crowdsale() {}
function transfer(address _to, uint256 _value) public returns (bool) {
require(balanceOf[msg.sender] >= _value);
balanceOf[msg.sender] -= _value;
balanceOf[_to] += _value;
emit Transfer(msg.sender, _to, _value);
return true;
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
if(_value > balanceOf[_from]) return false;
if(_value > allowed[_from][msg.sender]) return false;
balanceOf[_from] = balanceOf[_from].sub(_value);
balanceOf[_to] = balanceOf[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
contract CrowdsaleStoneToken is StoneToken {
function CrowdsaleStoneToken() public payable StoneToken() {}