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ERC-20
Overview
Max Total Supply
1,928.839859252058502063 DOLF
Holders
2
Total Transfers
-
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
MetadollarFund
Compiler Version
v0.4.25+commit.59dbf8f1
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2018-11-07 */ pragma solidity ^0.4.25; /* * ==================================================* * METADOLLAR FUND ON ETH - (DOLF) * ==================================================* * -> What? * Deployment of Proof of Weak Hands (P3D) contract on Ethereum Classic. * See ETH: 0xb3775fb83f7d12a36e0475abdd1fca35c091efbe for original. * -> What is different from original: * Ticker symbol: P3D -> DOLF * Name: PowH3D -> Metadollar Fund * Remove ability for administrator to change state (name, ticker symbol, masternode requirement) * Masternode requirment to 1000 tokens, to help stability. * Remove initialWhalePhase because no ambassadors or administrators. Pure autonomy. * Add contract creator as referral when there is not one. Earned fees go for website maintenance and marketing. * Buy and sell fee is increased to 50%. It allows investors to choose if focus on tokens or dividends * * -> Who worked on this project? * - Ozmode Group * -> Auditor: Callisto.network */ contract MetadollarFund { /*================================= = MODIFIERS = =================================*/ // only people with tokens modifier onlyBagholders() { require(myTokens() > 0); _; } // only people with profits modifier onlyStronghands() { require(myDividends(true) > 0); _; } // There are no admins set in constructor. This always reverts. modifier onlyAdministrator(){ address _customerAddress = msg.sender; require(administrators[keccak256(_customerAddress)]); _; } /*============================== = EVENTS = ==============================*/ event onTokenPurchase( address indexed customerAddress, uint256 incomingEthereum, uint256 tokensMinted, address indexed referredBy, address indexed referredByHome ); 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 ); /*===================================== = CONFIGURABLES = =====================================*/ string public name = "Metadollar Fund"; string public symbol = "DOLF"; uint8 constant public decimals = 18; uint8 constant internal dividendFee_ = 50; uint256 constant internal tokenPriceInitial_ = 0.0000001 ether; uint256 constant internal tokenPriceIncremental_ = 0.00000001 ether; uint256 constant internal magnitude = 2**64; // masternodes for all. uint256 public stakingRequirement = 1000e18; // ambassador program mapping(address => bool) internal ambassadors_; uint256 constant internal ambassadorMaxPurchase_ = 1 ether; uint256 constant internal ambassadorQuota_ = 20 ether; /*================================ = DATASETS = ================================*/ // amount of shares for each address (scaled number) mapping(address => uint256) internal tokenBalanceLedger_; mapping(address => uint256) internal referralBalance_; mapping(address => int256) internal payoutsTo_; mapping(address => uint256) internal ambassadorAccumulatedQuota_; uint256 internal tokenSupply_ = 0; uint256 internal profitPerShare_; // administrator list, always empty. mapping(bytes32 => bool) public administrators; // when this is set to true, only ambassadors can purchase tokens (this prevents a whale premine, it ensures a fairly distributed upper pyramid) bool public onlyAmbassadors = false; /*======================================= = PUBLIC FUNCTIONS = =======================================*/ /* * -- APPLICATION ENTRY POINTS -- */ function MetadollarFund() public { } /** * Converts all incoming ethereum to tokens for the caller, and passes down the referral addy (if any) */ function buy(address _referredBy, address _referredByHome) public payable returns(uint256) { purchaseTokens(msg.value, _referredBy, _referredByHome); } /** * 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, 0x0); } /** * Converts all of caller's dividends to tokens. */ function reinvest() onlyStronghands() 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, 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() onlyStronghands() 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) onlyBagholders() public { // setup data address _customerAddress = msg.sender; // 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) onlyBagholders() public returns(bool) { // setup address _customerAddress = msg.sender; // make sure we have the requested tokens // also disables transfers until ambassador phase is over // ( we dont want whale premines ) require(!onlyAmbassadors && _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; } // These do nothing and are only left in for ABI comaptibility reasons. /*---------- ADMINISTRATOR ONLY FUNCTIONS ----------*/ /** * In case the amassador quota is not met, the administrator can manually disable the ambassador phase. */ function disableInitialStage() onlyAdministrator() public { return; } /** * In case one of us dies, we need to replace ourselves. */ function setAdministrator(bytes32 _identifier, bool _status) onlyAdministrator() public { return; } /** * Precautionary measures in case we need to adjust the masternode rate. */ function setStakingRequirement(uint256 _amountOfTokens) onlyAdministrator() public { return; } /** * If we want to rebrand, we can. */ function setName(string _name) onlyAdministrator() public { return; } /** * If we want to rebrand, we can. */ function setSymbol(string _symbol) onlyAdministrator() public { return; } /*---------- 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, address _referredByHome) 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 _referredByHome = 0xFE84188D7401D65130Fc5047B3815B3Ca9eee302; referralBalance_[_referredByHome] = SafeMath.add(referralBalance_[_referredByHome], _referralBonus); } // 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, _referredByHome); 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
- No Contract Security Audit Submitted- Submit Audit Here
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Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://79819aeeeb88d93f96d1b05a585be47b008eb5ed499d0ed9586840f555b3b695
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