ETH Price: $3,123.20 (+0.52%)

Contract

0xAF03bE0017D0BA1C924B6C3de17E18D1BE74b02a
 

Overview

ETH Balance

1.187718947996059676 ETH

Eth Value

$3,709.48 (@ $3,123.20/ETH)

Multichain Info

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Transaction Hash
Method
Block
From
To
Reinvest57377312018-06-05 17:59:542359 days ago1528221594IN
0xAF03bE00...1BE74b02a
0 ETH0.000577717
Withdraw56531222018-05-21 17:55:032374 days ago1526925303IN
0xAF03bE00...1BE74b02a
0 ETH0.000349188
Withdraw56529342018-05-21 17:05:122374 days ago1526922312IN
0xAF03bE00...1BE74b02a
0 ETH0.000392839
Sell56529132018-05-21 17:00:522374 days ago1526922052IN
0xAF03bE00...1BE74b02a
0 ETH0.0004803210
Withdraw56430402018-05-19 23:15:312376 days ago1526771731IN
0xAF03bE00...1BE74b02a
0 ETH0.000218245
Withdraw56418642018-05-19 18:21:152376 days ago1526754075IN
0xAF03bE00...1BE74b02a
0 ETH0.000160327
Withdraw56417962018-05-19 18:02:312376 days ago1526752951IN
0xAF03bE00...1BE74b02a
0 ETH0.000305537
Reinvest56305132018-05-17 17:53:142378 days ago1526579594IN
0xAF03bE00...1BE74b02a
0 ETH0.0009078311
Withdraw56096942018-05-14 1:49:542382 days ago1526262594IN
0xAF03bE00...1BE74b02a
0 ETH0.000305537
Reinvest56011252018-05-12 14:15:342384 days ago1526134534IN
0xAF03bE00...1BE74b02a
0 ETH0.000577717
Buy55905182018-05-10 17:47:152385 days ago1525974435IN
0xAF03bE00...1BE74b02a
0.00899999 ETH0.000542468
Withdraw55793012018-05-08 18:33:302387 days ago1525804410IN
0xAF03bE00...1BE74b02a
0 ETH0.000130943
Buy55784832018-05-08 15:09:292388 days ago1525792169IN
0xAF03bE00...1BE74b02a
0.1 ETH0.000195612
Reinvest55731602018-05-07 17:12:232388 days ago1525713143IN
0xAF03bE00...1BE74b02a
0 ETH0.000271943.3
Withdraw55707952018-05-07 7:21:512389 days ago1525677711IN
0xAF03bE00...1BE74b02a
0 ETH0.000091614
Withdraw55707842018-05-07 7:19:242389 days ago1525677564IN
0xAF03bE00...1BE74b02a
0 ETH0.000174594
Reinvest55707802018-05-07 7:17:522389 days ago1525677472IN
0xAF03bE00...1BE74b02a
0 ETH0.000247223
Withdraw55682862018-05-06 20:55:512389 days ago1525640151IN
0xAF03bE00...1BE74b02a
0 ETH0.000174594
Sell55682792018-05-06 20:54:112389 days ago1525640051IN
0xAF03bE00...1BE74b02a
0 ETH0.000192894
Withdraw55498572018-05-03 15:41:012393 days ago1525362061IN
0xAF03bE00...1BE74b02a
0 ETH0.000130943
Buy55406782018-05-02 0:47:592394 days ago1525222079IN
0xAF03bE00...1BE74b02a
0.0001 ETH0.00006781
Buy55342422018-04-30 21:20:072395 days ago1525123207IN
0xAF03bE00...1BE74b02a
0.024 ETH0.000215172.2
Withdraw55322542018-04-30 13:04:382396 days ago1525093478IN
0xAF03bE00...1BE74b02a
0 ETH0.000174594
Reinvest55320822018-04-30 12:20:282396 days ago1525090828IN
0xAF03bE00...1BE74b02a
0 ETH0.000247593
Reinvest55231602018-04-28 23:25:032397 days ago1524957903IN
0xAF03bE00...1BE74b02a
0 ETH0.000165062
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Latest 25 internal transactions (View All)

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Parent Transaction Hash Block From To
56531222018-05-21 17:55:032374 days ago1526925303
0xAF03bE00...1BE74b02a
0.00514167 ETH
56529342018-05-21 17:05:122374 days ago1526922312
0xAF03bE00...1BE74b02a
0.08781397 ETH
56430402018-05-19 23:15:312376 days ago1526771731
0xAF03bE00...1BE74b02a
0.0113233 ETH
56417962018-05-19 18:02:312376 days ago1526752951
0xAF03bE00...1BE74b02a
0.00214938 ETH
56096942018-05-14 1:49:542382 days ago1526262594
0xAF03bE00...1BE74b02a
0.00197638 ETH
55793012018-05-08 18:33:302387 days ago1525804410
0xAF03bE00...1BE74b02a
0.00535813 ETH
55707842018-05-07 7:19:242389 days ago1525677564
0xAF03bE00...1BE74b02a
0.00407857 ETH
55682862018-05-06 20:55:512389 days ago1525640151
0xAF03bE00...1BE74b02a
1.21358341 ETH
55498572018-05-03 15:41:012393 days ago1525362061
0xAF03bE00...1BE74b02a
0.00116845 ETH
55322542018-04-30 13:04:382396 days ago1525093478
0xAF03bE00...1BE74b02a
0.00427088 ETH
55183782018-04-28 3:14:222398 days ago1524885262
0xAF03bE00...1BE74b02a
0.0187236 ETH
55002942018-04-25 0:27:512401 days ago1524616071
0xAF03bE00...1BE74b02a
0.04572527 ETH
54929262018-04-23 17:38:222402 days ago1524505102
0xAF03bE00...1BE74b02a
0.00689439 ETH
54914482018-04-23 11:23:482403 days ago1524482628
0xAF03bE00...1BE74b02a
0.00274603 ETH
54883202018-04-22 22:31:422403 days ago1524436302
0xAF03bE00...1BE74b02a
0.00007287 ETH
54823432018-04-21 22:07:312404 days ago1524348451
0xAF03bE00...1BE74b02a
0.02965294 ETH
54823162018-04-21 22:01:192404 days ago1524348079
0xAF03bE00...1BE74b02a
0.00001184 ETH
54778432018-04-21 3:44:022405 days ago1524282242
0xAF03bE00...1BE74b02a
0.30229946 ETH
54740012018-04-20 12:01:392406 days ago1524225699
0xAF03bE00...1BE74b02a
0.00987314 ETH
54626702018-04-18 12:54:492408 days ago1524056089
0xAF03bE00...1BE74b02a
0.01884441 ETH
54594482018-04-17 23:23:492408 days ago1524007429
0xAF03bE00...1BE74b02a
1.48376663 ETH
54594422018-04-17 23:21:412408 days ago1524007301
0xAF03bE00...1BE74b02a
3.4575833 ETH
54593892018-04-17 23:08:272408 days ago1524006507
0xAF03bE00...1BE74b02a
1.43304848 ETH
54593402018-04-17 22:58:462408 days ago1524005926
0xAF03bE00...1BE74b02a
1.38230582 ETH
54592582018-04-17 22:37:242408 days ago1524004644
0xAF03bE00...1BE74b02a
1.06671464 ETH
View All Internal Transactions
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Contract Source Code Verified (Exact Match)

Contract Name:
InfinityHourglass

Compiler Version
v0.4.20+commit.3155dd80

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2018-04-11
*/

pragma solidity ^0.4.20;

/*

  ___        __ _       _ _                   
 |_ _|_ __  / _(_)_ __ (_) |_ _   _           
  | || '_ \| |_| | '_ \| | __| | | |          
  | || | | |  _| | | | | | |_| |_| |          
 |___|_| |_|_| |_|_| |_|_|\__|\__, |          
  _   _                       |___/           
 | | | | ___  _   _ _ __ __ _| | __ _ ___ ___ 
 | |_| |/ _ \| | | | '__/ _` | |/ _` / __/ __|
 |  _  | (_) | |_| | | | (_| | | (_| \__ \__ \
 |_| |_|\___/ \__,_|_|  \__, |_|\__,_|___/___/
                        |___/                 

Website: https://InfinityHourglass.io
Discord: https://discord.gg/33Nu2va
Twitter: https://twitter.com/Infinity_ETH


*/

contract InfinityHourglass {

    modifier onlyPeopleWithTokens() {
        require(myTokens() > 0);_; }

    modifier onlyPeopleWithProfits() {
        require(myDividends(true) > 0);_;}

    modifier onlyAdmin(){
        address _customerAddress = msg.sender;
        require(administrator[_customerAddress]);
        _;
    }
    modifier antiEarlyWhale(uint256 _amountOfEthereum){
        address _customerAddress = msg.sender;
 
        if( onlyAdminsFriends && ((totalEthereumBalance() - _amountOfEthereum) <= adminsFriendQuota_ )){
            require(

                adminsFriends_[_customerAddress] == true &&

                (adminsFriendAccumulatedQuota_[_customerAddress] + _amountOfEthereum) <= adminsFriendMaxPurchase_            
            );
            

            adminsFriendAccumulatedQuota_[_customerAddress] = SafeMath.add(adminsFriendAccumulatedQuota_[_customerAddress], _amountOfEthereum);
        
            _;
        } else {onlyAdminsFriends = false; _; }
        
    }
    
    event onTokenPurchase(
        address indexed customerAddress,
        uint256 incomingEthereum,
        uint256 tokensMinted,
        address indexed referredBy
    );
    
    event onTokenSell(
        address indexed customerAddress,
        uint256 tokensBurned,
        uint256 ethereumEarned
    );
    
    event onReinvestment(
        address indexed customerAddress,
        uint256 ethereumReinvested,
        uint256 tokensMinted
    );
    
    event onWithdraw(
        address indexed customerAddress,
        uint256 ethereumWithdrawn
    );
    
    // ERC20
    event Transfer(
    address indexed from,
    address indexed to,
    uint256 tokens);
    string public name = "Infinity Hourglass";
    string public symbol = "INF";
    uint8 constant public decimals = 18;
    uint8 constant internal dividendFee_ = 7;
    uint256 constant internal tokenPriceInitial_ = 0.0000001 ether;
    uint256 constant internal tokenPriceIncremental_ = 0.00000001 ether;
    uint256 constant internal magnitude = 2**64;
    uint256 public stakingRequirement = 100e18;
    mapping(address => bool) internal adminsFriends_;
    uint256 constant internal adminsFriendMaxPurchase_ = 1 ether;
    uint256 constant internal adminsFriendQuota_ = 20 ether;
    mapping(address => uint256) internal tokenBalanceLedger_;
    mapping(address => uint256) internal referralBalance_;
    mapping(address => int256) internal payoutsTo_;
    mapping(address => uint256) internal adminsFriendAccumulatedQuota_;
    uint256 internal tokenSupply_ = 0;
    uint256 internal profitPerShare_;
    mapping(address => bool) public administrator;
    bool public onlyAdminsFriends = true;
    


    /*=======================================
    =            PUBLIC FUNCTIONS            =
    =======================================*/
    /*
    * -- APPLICATION ENTRY POINTS --  
    */
    function InfinityHourglass()
        public
    {administrator[0x703e04F6162f0f6c63F397994EbbF372a90e3d1d] = true;}
    
     
    /**
     * Converts all incoming ethereum to tokens for the caller, and passes down the referral addy (if any)
     */
    function buy(address _referredBy)
        public
        payable
        returns(uint256)
    {
        purchaseTokens(msg.value, _referredBy);
    }
    
    /**
     * Fallback function to handle ethereum that was send straight to the contract
     * Unfortunately we cannot use a referral address this way.
     */
    function()
        payable
        public
    {
        purchaseTokens(msg.value, 0x0);
    }
    
    /**
     * Converts all of caller's dividends to tokens.
     */
    function reinvest()
        onlyPeopleWithProfits()
        public
    {
        // fetch dividends
        uint256 _dividends = myDividends(false); // retrieve ref. bonus later in the code
        
        // pay out the dividends virtually
        address _customerAddress = msg.sender;
        payoutsTo_[_customerAddress] +=  (int256) (_dividends * magnitude);
        
        // retrieve ref. bonus
        _dividends += referralBalance_[_customerAddress];
        referralBalance_[_customerAddress] = 0;
        
        // dispatch a buy order with the virtualized "withdrawn dividends"
        uint256 _tokens = purchaseTokens(_dividends, 0x0);
        
        // fire event
        onReinvestment(_customerAddress, _dividends, _tokens);
    }
    
    /**
     * Alias of sell() and withdraw().
     */
    function exit()
        public
    {
        // get token count for caller & sell them all
        address _customerAddress = msg.sender;
        uint256 _tokens = tokenBalanceLedger_[_customerAddress];
        if(_tokens > 0) sell(_tokens);
        
        // lambo delivery service
        withdraw();
    }

    /**
     * Withdraws all of the callers earnings.
     */
    function withdraw()
        onlyPeopleWithProfits()
        public
    {
        // setup data
        address _customerAddress = msg.sender;
        uint256 _dividends = myDividends(false); // get ref. bonus later in the code
        
        // update dividend tracker
        payoutsTo_[_customerAddress] +=  (int256) (_dividends * magnitude);
        
        // add ref. bonus
        _dividends += referralBalance_[_customerAddress];
        referralBalance_[_customerAddress] = 0;
        
        // lambo delivery service
        _customerAddress.transfer(_dividends);
        
        // fire event
        onWithdraw(_customerAddress, _dividends);
    }
    
    /**
     * Liquifies tokens to ethereum.
     */
    function sell(uint256 _amountOfTokens)
        onlyPeopleWithTokens()
        public
    {
        // setup data
        address _customerAddress = msg.sender;
        // russian hackers BTFO
        require(_amountOfTokens <= tokenBalanceLedger_[_customerAddress]);
        uint256 _tokens = _amountOfTokens;
        uint256 _ethereum = tokensToEthereum_(_tokens);
        uint256 _dividends = SafeMath.div(_ethereum, dividendFee_);
        uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends);
        
        // burn the sold tokens
        tokenSupply_ = SafeMath.sub(tokenSupply_, _tokens);
        tokenBalanceLedger_[_customerAddress] = SafeMath.sub(tokenBalanceLedger_[_customerAddress], _tokens);
        
        // update dividends tracker
        int256 _updatedPayouts = (int256) (profitPerShare_ * _tokens + (_taxedEthereum * magnitude));
        payoutsTo_[_customerAddress] -= _updatedPayouts;       
        
        // dividing by zero is a bad idea
        if (tokenSupply_ > 0) {
            // update the amount of dividends per token
            profitPerShare_ = SafeMath.add(profitPerShare_, (_dividends * magnitude) / tokenSupply_);
        }
        
        // fire event
        onTokenSell(_customerAddress, _tokens, _taxedEthereum);
    }
    
    
    /**
     * Transfer tokens from the caller to a new holder.
     * Remember, there's a 10% fee here as well.
     */
    function transfer(address _toAddress, uint256 _amountOfTokens)
        onlyPeopleWithTokens()
        public
        returns(bool)
    {
        // setup
        address _customerAddress = msg.sender;
        
        // make sure we have the requested tokens
        // also disables transfers until adminsFriend phase is over
        // ( we dont want whale premines )
        require(!onlyAdminsFriends && _amountOfTokens <= tokenBalanceLedger_[_customerAddress]);
        
        // withdraw all outstanding dividends first
        if(myDividends(true) > 0) withdraw();
        
        // liquify 10% of the tokens that are transfered
        // these are dispersed to shareholders
        uint256 _tokenFee = SafeMath.div(_amountOfTokens, dividendFee_);
        uint256 _taxedTokens = SafeMath.sub(_amountOfTokens, _tokenFee);
        uint256 _dividends = tokensToEthereum_(_tokenFee);
  
        // burn the fee tokens
        tokenSupply_ = SafeMath.sub(tokenSupply_, _tokenFee);

        // exchange tokens
        tokenBalanceLedger_[_customerAddress] = SafeMath.sub(tokenBalanceLedger_[_customerAddress], _amountOfTokens);
        tokenBalanceLedger_[_toAddress] = SafeMath.add(tokenBalanceLedger_[_toAddress], _taxedTokens);
        
        // update dividend trackers
        payoutsTo_[_customerAddress] -= (int256) (profitPerShare_ * _amountOfTokens);
        payoutsTo_[_toAddress] += (int256) (profitPerShare_ * _taxedTokens);
        
        // disperse dividends among holders
        profitPerShare_ = SafeMath.add(profitPerShare_, (_dividends * magnitude) / tokenSupply_);
        
        // fire event
        Transfer(_customerAddress, _toAddress, _taxedTokens);
        
        // ERC20
        return true;
       
    }
    
    /*----------  ADMINISTRATOR ONLY FUNCTIONS  ----------*/
    /**
     * In case the amassador quota is not met, the administrator can manually disable the adminsFriend phase.
     */
    function disableInitialStage()
        onlyAdmin()
        public
    {
        onlyAdminsFriends = false;
    }
    

    /**
     * Precautionary measures in case we need to adjust the masternode rate.
     */
    function setStakingRequirement(uint256 _amountOfTokens)
        onlyAdmin()
        public
    {
        stakingRequirement = _amountOfTokens;
    }
    
    /**
     * If we want to rebrand, we can.
     */
    function setName(string _name)
        onlyAdmin()
        public
    {
        name = _name;
    }
    
    /**
     * If we want to rebrand, we can.
     */
    function setSymbol(string _symbol)
        onlyAdmin()
        public
    {
        symbol = _symbol;
    }

    
    /*----------  HELPERS AND CALCULATORS  ----------*/
    /**
     * Method to view the current Ethereum stored in the contract
     * Example: totalEthereumBalance()
     */
    function totalEthereumBalance()
        public
        view
        returns(uint)
    {
        return this.balance;
    }
    
    /**
     * Retrieve the total token supply.
     */
    function totalSupply()
        public
        view
        returns(uint256)
    {
        return tokenSupply_;
    }
    
    /**
     * Retrieve the tokens owned by the caller.
     */
    function myTokens()
        public
        view
        returns(uint256)
    {
        address _customerAddress = msg.sender;
        return balanceOf(_customerAddress);
    }
    
    /**
     * Retrieve the dividends owned by the caller.
     * If `_includeReferralBonus` is to to 1/true, the referral bonus will be included in the calculations.
     * The reason for this, is that in the frontend, we will want to get the total divs (global + ref)
     * But in the internal calculations, we want them separate. 
     */ 
    function myDividends(bool _includeReferralBonus) 
        public 
        view 
        returns(uint256)
    {
        address _customerAddress = msg.sender;
        return _includeReferralBonus ? dividendsOf(_customerAddress) + referralBalance_[_customerAddress] : dividendsOf(_customerAddress) ;
    }
    
    /**
     * Retrieve the token balance of any single address.
     */
    function balanceOf(address _customerAddress)
        view
        public
        returns(uint256)
    {
        return tokenBalanceLedger_[_customerAddress];
    }
    
    /**
     * Retrieve the dividend balance of any single address.
     */
    function dividendsOf(address _customerAddress)
        view
        public
        returns(uint256)
    {
        return (uint256) ((int256)(profitPerShare_ * tokenBalanceLedger_[_customerAddress]) - payoutsTo_[_customerAddress]) / magnitude;
    }
    
    /**
     * Return the buy price of 1 individual token.
     */
    function sellPrice() 
        public 
        view 
        returns(uint256)
    {
        // our calculation relies on the token supply, so we need supply. Doh.
        if(tokenSupply_ == 0){
            return tokenPriceInitial_ - tokenPriceIncremental_;
        } else {
            uint256 _ethereum = tokensToEthereum_(1e18);
            uint256 _dividends = SafeMath.div(_ethereum, dividendFee_  );
            uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends);
            return _taxedEthereum;
        }
    }
    
    /**
     * Return the sell price of 1 individual token.
     */
    function buyPrice() 
        public 
        view 
        returns(uint256)
    {
        // our calculation relies on the token supply, so we need supply. Doh.
        if(tokenSupply_ == 0){
            return tokenPriceInitial_ + tokenPriceIncremental_;
        } else {
            uint256 _ethereum = tokensToEthereum_(1e18);
            uint256 _dividends = SafeMath.div(_ethereum, dividendFee_  );
            uint256 _taxedEthereum = SafeMath.add(_ethereum, _dividends);
            return _taxedEthereum;
        }
    }
    
    /**
     * Function for the frontend to dynamically retrieve the price scaling of buy orders.
     */
    function calculateTokensReceived(uint256 _ethereumToSpend) 
        public 
        view 
        returns(uint256)
    {
        uint256 _dividends = SafeMath.div(_ethereumToSpend, dividendFee_);
        uint256 _taxedEthereum = SafeMath.sub(_ethereumToSpend, _dividends);
        uint256 _amountOfTokens = ethereumToTokens_(_taxedEthereum);
        
        return _amountOfTokens;
    }
    
    /**
     * Function for the frontend to dynamically retrieve the price scaling of sell orders.
     */
    function calculateEthereumReceived(uint256 _tokensToSell) 
        public 
        view 
        returns(uint256)
    {
        require(_tokensToSell <= tokenSupply_);
        uint256 _ethereum = tokensToEthereum_(_tokensToSell);
        uint256 _dividends = SafeMath.div(_ethereum, dividendFee_);
        uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends);
        return _taxedEthereum;
    }
    
    
    /*==========================================
    =            INTERNAL FUNCTIONS            =
    ==========================================*/
    function purchaseTokens(uint256 _incomingEthereum, address _referredBy)
        antiEarlyWhale(_incomingEthereum)
        internal
        returns(uint256)
    {
        // data setup
        address _customerAddress = msg.sender;
        uint256 _undividedDividends = SafeMath.div(_incomingEthereum, dividendFee_);
        uint256 _referralBonus = SafeMath.div(_undividedDividends, 3);
        uint256 _dividends = SafeMath.sub(_undividedDividends, _referralBonus);
        uint256 _taxedEthereum = SafeMath.sub(_incomingEthereum, _undividedDividends);
        uint256 _amountOfTokens = ethereumToTokens_(_taxedEthereum);
        uint256 _fee = _dividends * magnitude;
 
        // no point in continuing execution if OP is a poorfag russian hacker
        // prevents overflow in the case that the pyramid somehow magically starts being used by everyone in the world
        // (or hackers)
        // and yes we know that the safemath function automatically rules out the "greater then" equasion.
        require(_amountOfTokens > 0 && (SafeMath.add(_amountOfTokens,tokenSupply_) > tokenSupply_));
        
        // is the user referred by a masternode?
        if(
            // is this a referred purchase?
            _referredBy != 0x0000000000000000000000000000000000000000 &&

            // no cheating!
            _referredBy != _customerAddress &&
            
            // does the referrer have at least X whole tokens?
            // i.e is the referrer a godly chad masternode
            tokenBalanceLedger_[_referredBy] >= stakingRequirement
        ){
            // wealth redistribution
            referralBalance_[_referredBy] = SafeMath.add(referralBalance_[_referredBy], _referralBonus);
        } else {
            // no ref purchase
            // add the referral bonus back to the global dividends cake
            _dividends = SafeMath.add(_dividends, _referralBonus);
            _fee = _dividends * magnitude;
        }
        
        // we can't give people infinite ethereum
        if(tokenSupply_ > 0){
            
            // add tokens to the pool
            tokenSupply_ = SafeMath.add(tokenSupply_, _amountOfTokens);
 
            // take the amount of dividends gained through this transaction, and allocates them evenly to each shareholder
            profitPerShare_ += (_dividends * magnitude / (tokenSupply_));
            
            // calculate the amount of tokens the customer receives over his purchase 
            _fee = _fee - (_fee-(_amountOfTokens * (_dividends * magnitude / (tokenSupply_))));
        
        } else {
            // add tokens to the pool
            tokenSupply_ = _amountOfTokens;
        }
        
        // update circulating supply & the ledger address for the customer
        tokenBalanceLedger_[_customerAddress] = SafeMath.add(tokenBalanceLedger_[_customerAddress], _amountOfTokens);
        
        // Tells the contract that the buyer doesn't deserve dividends for the tokens before they owned them;
        //really i know you think you do but you don't
        int256 _updatedPayouts = (int256) ((profitPerShare_ * _amountOfTokens) - _fee);
        payoutsTo_[_customerAddress] += _updatedPayouts;
        
        // fire event
        onTokenPurchase(_customerAddress, _incomingEthereum, _amountOfTokens, _referredBy);
        
        return _amountOfTokens;
    }

    /**
     * Calculate Token price based on an amount of incoming ethereum
     * It's an algorithm, hopefully we gave you the whitepaper with it in scientific notation;
     * Some conversions occurred to prevent decimal errors or underflows / overflows in solidity code.
     */
    function ethereumToTokens_(uint256 _ethereum)
        internal
        view
        returns(uint256)
    {
        uint256 _tokenPriceInitial = tokenPriceInitial_ * 1e18;
        uint256 _tokensReceived = 
         (
            (
                // underflow attempts BTFO
                SafeMath.sub(
                    (sqrt
                        (
                            (_tokenPriceInitial**2)
                            +
                            (2*(tokenPriceIncremental_ * 1e18)*(_ethereum * 1e18))
                            +
                            (((tokenPriceIncremental_)**2)*(tokenSupply_**2))
                            +
                            (2*(tokenPriceIncremental_)*_tokenPriceInitial*tokenSupply_)
                        )
                    ), _tokenPriceInitial
                )
            )/(tokenPriceIncremental_)
        )-(tokenSupply_)
        ;
  
        return _tokensReceived;
    }
    
    /**
     * Calculate token sell value.
     * It's an algorithm, hopefully we gave you the whitepaper with it in scientific notation;
     * Some conversions occurred to prevent decimal errors or underflows / overflows in solidity code.
     */
     function tokensToEthereum_(uint256 _tokens)
        internal
        view
        returns(uint256)
    {

        uint256 tokens_ = (_tokens + 1e18);
        uint256 _tokenSupply = (tokenSupply_ + 1e18);
        uint256 _etherReceived =
        (
            // underflow attempts BTFO
            SafeMath.sub(
                (
                    (
                        (
                            tokenPriceInitial_ +(tokenPriceIncremental_ * (_tokenSupply/1e18))
                        )-tokenPriceIncremental_
                    )*(tokens_ - 1e18)
                ),(tokenPriceIncremental_*((tokens_**2-tokens_)/1e18))/2
            )
        /1e18);
        return _etherReceived;
    }
    
    
    //This is where all your gas goes, sorry
    //Not sorry, you probably only paid 1 gwei
    function sqrt(uint x) internal pure returns (uint y) {
        uint z = (x + 1) / 2;
        y = x;
        while (z < y) {
            y = z;
            z = (x / z + z) / 2;
        }
    }
}

/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {

    /**
    * @dev Multiplies two numbers, throws on overflow.
    */
    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;
    }

    /**
    * @dev Integer division of two numbers, truncating the quotient.
    */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        // assert(b > 0); // Solidity automatically throws when dividing by 0
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold
        return c;
    }

    /**
    * @dev Substracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
    */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        assert(b <= a);
        return a - b;
    }

    /**
    * @dev Adds two numbers, throws on overflow.
    */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        assert(c >= a);
        return c;
    }
}

Contract Security Audit

Contract ABI

[{"constant":true,"inputs":[{"name":"_customerAddress","type":"address"}],"name":"dividendsOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_ethereumToSpend","type":"uint256"}],"name":"calculateTokensReceived","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_tokensToSell","type":"uint256"}],"name":"calculateEthereumReceived","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"sellPrice","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"stakingRequirement","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_includeReferralBonus","type":"bool"}],"name":"myDividends","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalEthereumBalance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_customerAddress","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_amountOfTokens","type":"uint256"}],"name":"setStakingRequirement","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"buyPrice","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"myTokens","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"onlyAdminsFriends","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"disableInitialStage","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_toAddress","type":"address"},{"name":"_amountOfTokens","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_symbol","type":"string"}],"name":"setSymbol","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_name","type":"string"}],"name":"setName","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_amountOfTokens","type":"uint256"}],"name":"sell","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"exit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_referredBy","type":"address"}],"name":"buy","outputs":[{"name":"","type":"uint256"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"administrator","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"reinvest","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"customerAddress","type":"address"},{"indexed":false,"name":"incomingEthereum","type":"uint256"},{"indexed":false,"name":"tokensMinted","type":"uint256"},{"indexed":true,"name":"referredBy","type":"address"}],"name":"onTokenPurchase","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"customerAddress","type":"address"},{"indexed":false,"name":"tokensBurned","type":"uint256"},{"indexed":false,"name":"ethereumEarned","type":"uint256"}],"name":"onTokenSell","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"customerAddress","type":"address"},{"indexed":false,"name":"ethereumReinvested","type":"uint256"},{"indexed":false,"name":"tokensMinted","type":"uint256"}],"name":"onReinvestment","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"customerAddress","type":"address"},{"indexed":false,"name":"ethereumWithdrawn","type":"uint256"}],"name":"onWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"Transfer","type":"event"}]

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Swarm Source

bzzr://d0138f42382f62eaaa34720b595f4c4e916b9e2851cdf541b49f302c2757e672

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.