Frankly speaking, in the present world, Cryptos are turning out to be safest option when it comes to investment. So any sensible person for sure will be eager to make investment in the Crypto world. However, we need to be extremely sure about the way we do it. I prefer doing it via Crypto Broker. As I feel this is the way I can avoid unnecessary situation and scenarios, which eventually leads to results that I wish to achieve in overall frame.
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Honestly do not directly purchase it. You will not be all that comfortable. If you instead do Crypto Trading, you not only get more freedom due to leverages but also it is something that you can benefit even if the price is going negative. This is something I really wish to do in future as compared to how I have done it currently with getting stuck due to higher price purchase. So I will only suggest this only not to make same mistake like me or others.
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I think there are many Crypto Exchanges out there worthy of trying but we obviously need to be selective with which to go with. It makes very little sense for us to try new. So ultimately we need to select out of the top available options only. It obviously includes Coinbase, Binance and such other exchanges. Ultimately, it is all about going for something that we are comfortable and secure with, I really don’t think we have to worry about anything else at all.
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I don’t think there is any logical way to say about this. But one thing is for sure and that is the popularity of Cryptos. It is for sure on high and for obvious reasons too. So we could see something like that a very much realistic possibility. However, there is just nothing that can be guaranteed. So we have to avoid that fixed mind set. One important aspect is keeping up with Crypto News, which will for sure benefit us in long run.
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We should avoid becoming one way pony-tail. If we do then we will only struggle. So that’s where we have to be extremely careful about everything. I get it all rolling easily with having strategies that allows me to operate in any market situation. As with that I can make good and consistent profits. I also use some Trading Tools, which only adds up to how I work and brings so much benefits to me in any situation.
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Frankly speaking, I am not in favour of this at all. I feel there is so much to gain in other ways. I would say Lending Platform are good options. We can even just save it with how current market is going, it will still help us get benefit, so there are just so many things that we can do and benefit from as well. Ultimately our attempt should be to go for something that’s safer, simpler and easier to work through. It’s all that is needed for us.
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If you are starting up here, it is better if you begin up getting proper knowledge. If you do that accurately, then it will lead you towards making profits. So getting Crypto Knowledge is must in order to be able to succeed and achieve results that are worthy. If we are not going to get this education part right, it will just not get us anywhere, so it is vital that we focus on that aspect. It will be the route to help us with making money and good amount of money as well.
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I don’t think there is any genuine way when it comes to going without investment, as you already ruled our mining which is obvious other way for all this. But anyhow, I would say that Airdrop Campaign, is only other logical way to earn without investment at all. But of course, we have to ensure that we do everything in proper way with joining only the Best ones and that with proper system, reputation and potential instead of pulling it all randomly.
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If we are just starting up in Crypto trading, then the most important part is to plan and keep the right level of risk/money management. It is only way that we can make profits, and do it consistently. It is no way possible otherwise. And it is important that we understand the value of it because that way only we will be able to gain rewards and benefit. I won’t be easy doable with hard work and dedication. But of course, not everyone is capable of it.
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I don’t really have highest preference when it comes to using Trading bots, as I feel they are not all that beneficial at all. But I know a lot of my friends are interested in using it and do it because they have no option. A lot of people don’t have time from their busy schedule to do it and that is why Trading Bots becomes obvious option. I won’t suggest but I have seen friends using Gekko but I haven’t used it that actively myself to be clear.
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In my view, the best way is through trading since it’s how you can gain in almost every and any situation. Although, I am not entirely against the Crypto dealing directly, but it is often too risky and challenging, so that’s where I have so much more preference with Crypto Broker, where not only there are benefits like leverages and bonuses but also a lot more. This is all really what makes life easier and simpler and also is far more beneficial too.
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I believe all these are so so important aspect for anyone interested in Crypto industry. As because of this one can easily understand a lot of things which normally is hard to understand. I would suggest this for all Blockchain Books, while here you can also find out about Documentaries as well. So that is something very special and makes life easier for everyone who is starting up in this massive Crypto industry and are struggling to know the right direction for it.
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Although, there are favourite sites according to different things but since here most have Crypto mindset, I would say my favourite site is Cryptolinks, and that is because I find everything here. I don’t think I will ever be getting this from anywhere else. So this is where and why it is so important to be following such sites, where so many benefits are for people, especially for the Crypto lovers like me. I have really found it simpler.
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What is 0xbitconnect? A fully transparent and trust-less decentralized application built on Ethereum, exposing the potential of 0xbitcoin. Once a smart contract is verified on the blockchain it is immutable, meaning it can never be changed. 0xbitconnect, connects the characteristics of bitcoin with smart contract capabilities. Buy tokens, earn from buys and sells, have fun, and most important be free. How the platform works? 0xbitconnect.co, is a trust less platform built on the Ethereum protocol giving the first use case to 0xbitcoin. By purchasing coins, coin holders will be receiving dividends from buys and sells. With the current low supply of 0xBTC, there will be volatility. This is beneficial for coin holders. Verified Source Code /** * Source Code first verified at https://etherscan.io on Thursday, March 21, 2019 (UTC) */
pragma solidity 0.4.25;
contract ERC20Interface {
function totalSupply() public constant returns(uint);
function balanceOf(address tokenOwner) public constant returns(uint balance);
function allowance(address tokenOwner, address spender) public constant returns(uint remaining);
function transfer(address to, uint tokens) public returns(bool success);
function approve(address spender, uint tokens) public returns(bool success);
function transferFrom(address from, address to, uint tokens) public returns(bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}
contract _0xBitconnect { using SafeMath for uint;
/*================================= = MODIFIERS = =================================*/
modifier onlyHolders() { require(myFrontEndTokens() > 0); _; }
modifier dividendHolder() { require(myDividends(true) > 0); _; }
modifier onlyAdministrator() { address _customerAddress = msg.sender; require(administrators[_customerAddress]); _; }
/*============================== = EVENTS = ==============================*/
event onTokenPurchase( address indexed customerAddress, uint incoming, uint8 dividendRate, uint tokensMinted, address indexed referredBy );
event UserDividendRate( address user, uint divRate );
event onTokenSell( address indexed customerAddress, uint tokensBurned, uint earned );
event onReinvestment( address indexed customerAddress, uint reinvested, uint tokensMinted );
event onWithdraw( address indexed customerAddress, uint withdrawn );
event Transfer( address indexed from, address indexed to, uint tokens );
event Approval( address indexed tokenOwner, address indexed spender, uint tokens );
event Allocation( uint toBankRoll, uint toReferrer, uint toTokenHolders, uint toDivCardHolders, uint forTokens );
event Referral( address referrer, uint amountReceived );
/*===================================== = CONSTANTS = =====================================*/
uint8 constant public decimals = 18;
uint constant internal magnitude = 2 ** 64;
uint constant internal MULTIPLIER = 1140;
uint constant internal MIN_TOK_BUYIN = 0.0001 ether; uint constant internal MIN_TOKEN_SELL_AMOUNT = 0.0001 ether; uint constant internal MIN_TOKEN_TRANSFER = 1e10; uint constant internal referrer_percentage = 25; uint constant internal MAX_SUPPLY = 1e25;
ERC20Interface internal _0xBTC;
uint public stakingRequirement = 100e18;
/*================================ = CONFIGURABLES = ================================*/
string public name = "0xBitconnect"; string public symbol = "0xBCC";
address internal bankrollAddress;
_0xBitconnectDividendCards divCardContract;
/*================================ = DATASETS = ================================*/
// Tracks front & backend tokens mapping(address => uint) internal frontTokenBalanceLedger_; mapping(address => uint) internal dividendTokenBalanceLedger_; mapping(address => mapping(address => uint)) public allowed;
// Tracks dividend rates for users mapping(uint8 => bool) internal validDividendRates_; mapping(address => bool) internal userSelectedRate; mapping(address => uint8) internal userDividendRate;
// Payout tracking mapping(address => uint) internal referralBalance_; mapping(address => int256) internal payoutsTo_;
uint public current0xbtcInvested;
uint internal tokenSupply = 0; uint internal divTokenSupply = 0;
uint internal profitPerDivToken;
mapping(address => bool) public administrators;
bool public regularPhase = false;
/*======================================= = PUBLIC FUNCTIONS = =======================================*/ constructor(address _bankrollAddress, address _divCardAddress, address _btcAddress) public { bankrollAddress = _bankrollAddress; divCardContract = _0xBitconnectDividendCards(_divCardAddress); _0xBTC = ERC20Interface(_btcAddress);
administrators[msg.sender] = true; // Helps with debugging!
validDividendRates_[10] = true; validDividendRates_[20] = true; validDividendRates_[30] = true;
userSelectedRate[bankrollAddress] = true; userDividendRate[bankrollAddress] = 30;
/*======================================= = INITIAL HEAVEN = =======================================*/
uint initiallyAssigned = 3*10**24;
address heavenA = 0xA7cDc6cF8E8a4db39bc03ac675662D6E2F8F84f3; address heavenB = 0xbC539A28e85c587987297da7039949eA23b51723;
userSelectedRate[heavenA] = true; userDividendRate[heavenA] = 30;
userSelectedRate[heavenB] = true; userDividendRate[heavenB] = 30;
tokenSupply = tokenSupply.add(initiallyAssigned); divTokenSupply = divTokenSupply.add(initiallyAssigned.mul(30));
profitPerDivToken = profitPerDivToken.add((initiallyAssigned.mul(magnitude)).div(divTokenSupply)); payoutsTo_[heavenA] += (int256)((profitPerDivToken * (initiallyAssigned.div(3)).mul(userDividendRate[heavenA]))); payoutsTo_[heavenB] += (int256)((profitPerDivToken * (initiallyAssigned.div(3)).mul(userDividendRate[heavenB]))); payoutsTo_[bankrollAddress] += (int256)((profitPerDivToken * (initiallyAssigned.div(3)).mul(userDividendRate[bankrollAddress])));
frontTokenBalanceLedger_[heavenA] = frontTokenBalanceLedger_[heavenA].add(initiallyAssigned.div(3)); dividendTokenBalanceLedger_[heavenA] = dividendTokenBalanceLedger_[heavenA].add((initiallyAssigned.div(3)).mul(userDividendRate[heavenA]));
frontTokenBalanceLedger_[heavenB] = frontTokenBalanceLedger_[heavenB].add(initiallyAssigned.div(3)); dividendTokenBalanceLedger_[heavenB] = dividendTokenBalanceLedger_[heavenB].add((initiallyAssigned.div(3)).mul(userDividendRate[heavenB]));
frontTokenBalanceLedger_[bankrollAddress] = frontTokenBalanceLedger_[bankrollAddress].add(initiallyAssigned.div(3)); dividendTokenBalanceLedger_[bankrollAddress] = dividendTokenBalanceLedger_[bankrollAddress].add((initiallyAssigned.div(3)).mul(userDividendRate[bankrollAddress]));
}
/** * Same as buy, but explicitly sets your dividend percentage. * If this has been called before, it will update your `default' dividend * percentage for regular buy transactions going forward. */ function buyAndSetDivPercentage(uint _0xbtcAmount, address _referredBy, uint8 _divChoice, string providedUnhashedPass) public returns(uint) {
require(regularPhase);
// Dividend percentage should be a currently accepted value. require(validDividendRates_[_divChoice]);
// Set the dividend fee percentage denominator. userSelectedRate[msg.sender] = true; userDividendRate[msg.sender] = _divChoice; emit UserDividendRate(msg.sender, _divChoice);
// Finally, purchase tokens. purchaseTokens(_0xbtcAmount, _referredBy, false); }
// All buys except for the above one require regular phase.
function buy(uint _0xbtcAmount, address _referredBy) public returns(uint) { require(regularPhase); address _customerAddress = msg.sender; require(userSelectedRate[_customerAddress]); purchaseTokens(_0xbtcAmount, _referredBy, false); }
function buyAndTransfer(uint _0xbtcAmount, address _referredBy, address target) public { bytes memory empty; buyAndTransfer(_0xbtcAmount, _referredBy, target, empty, 20); }
function buyAndTransfer(uint _0xbtcAmount, address _referredBy, address target, bytes _data) public { buyAndTransfer(_0xbtcAmount, _referredBy, target, _data, 20); }
// Overload function buyAndTransfer(uint _0xbtcAmount, address _referredBy, address target, bytes _data, uint8 divChoice) public { require(regularPhase); address _customerAddress = msg.sender; uint256 frontendBalance = frontTokenBalanceLedger_[msg.sender]; if (userSelectedRate[_customerAddress] && divChoice == 0) { purchaseTokens(_0xbtcAmount, _referredBy, false); } else { buyAndSetDivPercentage(_0xbtcAmount, _referredBy, divChoice, "0x0"); } uint256 difference = SafeMath.sub(frontTokenBalanceLedger_[msg.sender], frontendBalance); transferTo(msg.sender, target, difference, _data); }
// No Fallback functionality function () public { revert(); }
function reinvest() dividendHolder() public { require(regularPhase); uint _dividends = myDividends(false);
// Pay out requisite `virtual' dividends. address _customerAddress = msg.sender; payoutsTo_[_customerAddress] += (int256)(_dividends * magnitude);
_dividends += referralBalance_[_customerAddress]; referralBalance_[_customerAddress] = 0;
uint _tokens = purchaseTokens(_dividends.div(1e10), address(0), true); //to 8 Decimals
// Fire logging event. emit onReinvestment(_customerAddress, _dividends, _tokens); }
function exit() public { require(regularPhase); // Retrieve token balance for caller, then sell them all. address _customerAddress = msg.sender; uint _tokens = frontTokenBalanceLedger_[_customerAddress];
if (_tokens > 0) sell(_tokens);
withdraw(_customerAddress); }
function withdraw(address _recipient) dividendHolder() public { require(regularPhase); // Setup data address _customerAddress = msg.sender; uint _dividends = myDividends(false);
// update dividend tracker payoutsTo_[_customerAddress] += (int256)(_dividends * magnitude);
// add ref. bonus _dividends += referralBalance_[_customerAddress]; referralBalance_[_customerAddress] = 0;
if (_recipient == address(0x0)) { _recipient = msg.sender; }
_dividends = _dividends.div(1e10); //to 8 decimals _0xBTC.transfer(_recipient, _dividends);
// Fire logging event. emit onWithdraw(_recipient, _dividends); }
// Sells front-end tokens. function sell(uint _amountOfTokens) onlyHolders() public { require(regularPhase);
require(_amountOfTokens <= frontTokenBalanceLedger_[msg.sender]);
uint _frontEndTokensToBurn = _amountOfTokens;
// Calculate how many dividend tokens this action burns. // Computed as the caller's average dividend rate multiplied by the number of front-end tokens held. // As an additional guard, we ensure that the dividend rate is between 2 and 50 inclusive. uint userDivRate = getUserAverageDividendRate(msg.sender); require((2 * magnitude) <= userDivRate && (50 * magnitude) >= userDivRate); uint _divTokensToBurn = (_frontEndTokensToBurn.mul(userDivRate)).div(magnitude);
// Calculate 0xbtc received before dividends uint _0xbtc = tokensTo0xbtc_(_frontEndTokensToBurn);
if (_0xbtc > current0xbtcInvested) { // Well, congratulations, you've emptied the coffers. current0xbtcInvested = 0; } else { current0xbtcInvested = current0xbtcInvested - _0xbtc; }
// Calculate dividends generated from the sale. uint _dividends = (_0xbtc.mul(getUserAverageDividendRate(msg.sender)).div(100)).div(magnitude);
// Calculate 0xbtc receivable net of dividends. uint _taxed0xbtc = _0xbtc.sub(_dividends);
// Burn the sold tokens (both front-end and back-end variants). tokenSupply = tokenSupply.sub(_frontEndTokensToBurn); divTokenSupply = divTokenSupply.sub(_divTokensToBurn);
// Subtract the token balances for the seller frontTokenBalanceLedger_[msg.sender] = frontTokenBalanceLedger_[msg.sender].sub(_frontEndTokensToBurn); dividendTokenBalanceLedger_[msg.sender] = dividendTokenBalanceLedger_[msg.sender].sub(_divTokensToBurn);
// Update dividends tracker int256 _updatedPayouts = (int256)(profitPerDivToken * _divTokensToBurn + (_taxed0xbtc * magnitude)); payoutsTo_[msg.sender] -= _updatedPayouts;
// Let's avoid breaking arithmetic where we can, eh? if (divTokenSupply > 0) { // Update the value of each remaining back-end dividend token. profitPerDivToken = profitPerDivToken.add((_dividends * magnitude) / divTokenSupply); }
// Fire logging event. emit onTokenSell(msg.sender, _frontEndTokensToBurn, _taxed0xbtc); }
/** * Transfer tokens from the caller to a new holder. * No charge incurred for the transfer. We'd make a terrible bank. */ function transfer(address _toAddress, uint _amountOfTokens) onlyHolders() public returns(bool) { require(_amountOfTokens >= MIN_TOKEN_TRANSFER && _amountOfTokens <= frontTokenBalanceLedger_[msg.sender]); bytes memory empty; transferFromInternal(msg.sender, _toAddress, _amountOfTokens, empty); return true;
}
function approve(address spender, uint tokens) public returns(bool) { address _customerAddress = msg.sender; allowed[_customerAddress][spender] = tokens;
// Fire logging event. emit Approval(_customerAddress, spender, tokens);
// Good old ERC20. return true; }
/** * Transfer tokens from the caller to a new holder: the Used By Smart Contracts edition. * No charge incurred for the transfer. No seriously, we'd make a terrible bank. */ function transferFrom(address _from, address _toAddress, uint _amountOfTokens) public returns(bool) { // Setup variables address _customerAddress = _from; bytes memory empty; // Make sure we own the tokens we're transferring, are ALLOWED to transfer that many tokens, // and are transferring at least one full token. require(_amountOfTokens >= MIN_TOKEN_TRANSFER && _amountOfTokens <= frontTokenBalanceLedger_[_customerAddress] && _amountOfTokens <= allowed[_customerAddress][msg.sender]);
transferFromInternal(_from, _toAddress, _amountOfTokens, empty);
// Good old ERC20. return true;
}
function transferTo(address _from, address _to, uint _amountOfTokens, bytes _data) public { if (_from != msg.sender) { require(_amountOfTokens >= MIN_TOKEN_TRANSFER && _amountOfTokens <= frontTokenBalanceLedger_[_from] && _amountOfTokens <= allowed[_from][msg.sender]); } else { require(_amountOfTokens >= MIN_TOKEN_TRANSFER && _amountOfTokens <= frontTokenBalanceLedger_[_from]); }
transferFromInternal(_from, _to, _amountOfTokens, _data); }
// Who'd have thought we'd need this thing floating around? function totalSupply() public view returns(uint256) { return tokenSupply; }
/*---------- ADMINISTRATOR ONLY FUNCTIONS ----------*/
function startRegularPhase() onlyAdministrator public { regularPhase = true; }
// The death of a great man demands the birth of a great son. function setAdministrator(address _newAdmin, bool _status) onlyAdministrator() public { administrators[_newAdmin] = _status; }
function setStakingRequirement(uint _amountOfTokens) onlyAdministrator() public { // This plane only goes one way, lads. Never below the initial. require(_amountOfTokens >= 100e18); stakingRequirement = _amountOfTokens; }
function setName(string _name) onlyAdministrator() public { name = _name; }
function setSymbol(string _symbol) onlyAdministrator() public { symbol = _symbol; }
function changeBankroll(address _newBankrollAddress) onlyAdministrator public { bankrollAddress = _newBankrollAddress; }
/*---------- HELPERS AND CALCULATORS ----------*/
function total0xbtcBalance() public view returns(uint) { return _0xBTC.balanceOf(address(this)); }
function total0xbtcReceived() public view returns(uint) { return current0xbtcInvested; }
/** * Retrieves your currently selected dividend rate. */ function getMyDividendRate() public view returns(uint8) { address _customerAddress = msg.sender; require(userSelectedRate[_customerAddress]); return userDividendRate[_customerAddress]; }
/** * Retrieve the total frontend token supply */ function getFrontEndTokenSupply() public view returns(uint) { return tokenSupply; }
/** * Retreive the total dividend token supply */ function getDividendTokenSupply() public view returns(uint) { return divTokenSupply; }
/** * Retrieve the frontend tokens owned by the caller */ function myFrontEndTokens() public view returns(uint) { address _customerAddress = msg.sender; return getFrontEndTokenBalanceOf(_customerAddress); }
/** * Retrieve the dividend tokens owned by the caller */ function myDividendTokens() public view returns(uint) { address _customerAddress = msg.sender; return getDividendTokenBalanceOf(_customerAddress); }
function myReferralDividends() public view returns(uint) { return myDividends(true) - myDividends(false); }
function myDividends(bool _includeReferralBonus) public view returns(uint) { address _customerAddress = msg.sender; return _includeReferralBonus ? dividendsOf(_customerAddress) + referralBalance_[_customerAddress] : dividendsOf(_customerAddress); }
function theDividendsOf(bool _includeReferralBonus, address _customerAddress) public view returns(uint) { return _includeReferralBonus ? dividendsOf(_customerAddress) + referralBalance_[_customerAddress] : dividendsOf(_customerAddress); }
function getFrontEndTokenBalanceOf(address _customerAddress) view public returns(uint) { return frontTokenBalanceLedger_[_customerAddress]; }
function balanceOf(address _owner) view public returns(uint) { return getFrontEndTokenBalanceOf(_owner); }
function getDividendTokenBalanceOf(address _customerAddress) view public returns(uint) { return dividendTokenBalanceLedger_[_customerAddress]; }
function dividendsOf(address _customerAddress) view public returns(uint) { return (uint)((int256)(profitPerDivToken * dividendTokenBalanceLedger_[_customerAddress]) - payoutsTo_[_customerAddress]) / magnitude; }
// Get the sell price at the user's average dividend rate function sellPrice() public view returns(uint) { uint price;
// Calculate the tokens received for 0.001 0xbtc. // Divide to find the average, to calculate the price. uint tokensReceivedFor0xbtc = btcToTokens_(0.001 ether);
price = (1e18 * 0.001 ether) / tokensReceivedFor0xbtc;
// Factor in the user's average dividend rate uint theSellPrice = price.sub((price.mul(getUserAverageDividendRate(msg.sender)).div(100)).div(magnitude));
return theSellPrice; }
// Get the buy price at a particular dividend rate function buyPrice(uint dividendRate) public view returns(uint) { uint price;
// Calculate the tokens received for 100 finney. // Divide to find the average, to calculate the price. uint tokensReceivedFor0xbtc = btcToTokens_(0.001 ether);
price = (1e18 * 0.001 ether) / tokensReceivedFor0xbtc;
// Factor in the user's selected dividend rate uint theBuyPrice = (price.mul(dividendRate).div(100)).add(price);
return theBuyPrice; }
function calculateTokensReceived(uint _0xbtcToSpend) public view returns(uint) { uint fixedAmount = _0xbtcToSpend.mul(1e10); uint _dividends = (fixedAmount.mul(userDividendRate[msg.sender])).div(100); uint _taxed0xbtc = fixedAmount.sub(_dividends); uint _amountOfTokens = btcToTokens_(_taxed0xbtc); return _amountOfTokens; }
// When selling tokens, we need to calculate the user's current dividend rate. // This is different from their selected dividend rate. function calculate0xbtcReceived(uint _tokensToSell) public view returns(uint) { require(_tokensToSell <= tokenSupply); uint _0xbtc = tokensTo0xbtc_(_tokensToSell); uint userAverageDividendRate = getUserAverageDividendRate(msg.sender); uint _dividends = (_0xbtc.mul(userAverageDividendRate).div(100)).div(magnitude); uint _taxed0xbtc = _0xbtc.sub(_dividends); return _taxed0xbtc.div(1e10); }
/* * Get's a user's average dividend rate - which is just their divTokenBalance / tokenBalance * We multiply by magnitude to avoid precision errors. */
function getUserAverageDividendRate(address user) public view returns(uint) { return (magnitude * dividendTokenBalanceLedger_[user]).div(frontTokenBalanceLedger_[user]); }
function getMyAverageDividendRate() public view returns(uint) { return getUserAverageDividendRate(msg.sender); }
/*========================================== = INTERNAL FUNCTIONS = ==========================================*/
/* Purchase tokens with 0xbtc. During normal operation: 0.5% should go to the master dividend card 0.5% should go to the matching dividend card 25% of dividends should go to the referrer, if any is provided. */ function purchaseTokens(uint _incoming, address _referredBy, bool _reinvest) internal returns(uint) {
require(_incoming.mul(1e10) >= MIN_TOK_BUYIN || msg.sender == bankrollAddress, "Tried to buy below the min 0xbtc buyin threshold.");
uint toReferrer; uint toTokenHolders; uint toDivCardHolders;
uint dividendAmount;
uint tokensBought;
uint remaining0xbtc = _incoming.mul(1e10);
uint fee;
// 1% for dividend card holders is taken off before anything else if (regularPhase) { toDivCardHolders = _incoming.mul(1e8); remaining0xbtc = remaining0xbtc.sub(toDivCardHolders); }
/* Next, we tax for dividends: Dividends = (0xbtc * div%) / 100 Important note: the 1% sent to div-card holders is handled prior to any dividend taxes are considered. */
// Calculate the total dividends on this buy dividendAmount = (remaining0xbtc.mul(userDividendRate[msg.sender])).div(100);
remaining0xbtc = remaining0xbtc.sub(dividendAmount);
// Calculate how many tokens to buy: tokensBought = btcToTokens_(remaining0xbtc);
// This is where we actually mint tokens: require(tokenSupply.add(tokensBought) <= MAX_SUPPLY); tokenSupply = tokenSupply.add(tokensBought); divTokenSupply = divTokenSupply.add(tokensBought.mul(userDividendRate[msg.sender]));
/* Update the total investment tracker Note that this must be done AFTER we calculate how many tokens are bought - because btcToTokens needs to know the amount *before* investment, not *after* investment. */
current0xbtcInvested = current0xbtcInvested + remaining0xbtc;
// Ccheck for referrals
// 25% goes to referrers, if set // toReferrer = (dividends * 25)/100 if (_referredBy != 0x0000000000000000000000000000000000000000 && _referredBy != msg.sender && frontTokenBalanceLedger_[_referredBy] >= stakingRequirement) { toReferrer = (dividendAmount.mul(referrer_percentage)).div(100); referralBalance_[_referredBy] += toReferrer; emit Referral(_referredBy, toReferrer); }
// The rest of the dividends go to token holders toTokenHolders = dividendAmount.sub(toReferrer);
fee = toTokenHolders * magnitude; fee = fee - (fee - (tokensBought.mul(userDividendRate[msg.sender]) * (toTokenHolders * magnitude / (divTokenSupply))));
// Finally, increase the divToken value profitPerDivToken = profitPerDivToken.add((toTokenHolders.mul(magnitude)).div(divTokenSupply)); payoutsTo_[msg.sender] += (int256)((profitPerDivToken * tokensBought.mul(userDividendRate[msg.sender])) - fee);
// Update the buyer's token amounts frontTokenBalanceLedger_[msg.sender] = frontTokenBalanceLedger_[msg.sender].add(tokensBought); dividendTokenBalanceLedger_[msg.sender] = dividendTokenBalanceLedger_[msg.sender].add(tokensBought.mul(userDividendRate[msg.sender]));
if (_reinvest == false) { //Lets receive the 0xbtc _0xBTC.transferFrom(msg.sender, address(this), _incoming); }
// Transfer to div cards if (regularPhase) { _0xBTC.approve(address(divCardContract), toDivCardHolders.div(1e10)); divCardContract.receiveDividends(toDivCardHolders.div(1e10), userDividendRate[msg.sender]); }
// This event should help us track where all the 0xbtc is going emit Allocation(0, toReferrer, toTokenHolders, toDivCardHolders, remaining0xbtc);
emit onTokenPurchase(msg.sender, _incoming, userDividendRate[msg.sender], tokensBought, _referredBy);
// Sanity checking uint sum = toReferrer + toTokenHolders + toDivCardHolders + remaining0xbtc - _incoming.mul(1e10); assert(sum == 0); }
// How many tokens one gets from a certain amount of 0xbtc. function btcToTokens_(uint _0xbtcAmount) public view returns(uint) {
//0xbtcAmount expected as 18 decimals instead of 8
require(_0xbtcAmount > MIN_TOK_BUYIN, "Tried to buy tokens with too little 0xbtc.");
uint _0xbtcTowardsVariablePriceTokens = _0xbtcAmount;
uint varPriceTokens = 0;
if (_0xbtcTowardsVariablePriceTokens != 0) {
uint simulated0xbtcBeforeInvested = toPowerOfThreeHalves(tokenSupply.div(MULTIPLIER * 1e6)).mul(2).div(3); uint simulated0xbtcAfterInvested = simulated0xbtcBeforeInvested + _0xbtcTowardsVariablePriceTokens;
uint tokensBefore = toPowerOfTwoThirds(simulated0xbtcBeforeInvested.mul(3).div(2)).mul(MULTIPLIER); uint tokensAfter = toPowerOfTwoThirds(simulated0xbtcAfterInvested.mul(3).div(2)).mul(MULTIPLIER);
/* Investment IS already multiplied by 1e18; however, because this is taken to a power of (2/3), we need to multiply the result by 1e6 to get back to the correct number of decimals. */
varPriceTokens = (1e6) * tokensAfter.sub(tokensBefore); }
uint totalTokensReceived = varPriceTokens;
assert(totalTokensReceived > 0); return totalTokensReceived; }
// How much 0xBTC we get from selling N tokens function tokensTo0xbtc_(uint _tokens) public view returns(uint) { require(_tokens >= MIN_TOKEN_SELL_AMOUNT, "Tried to sell too few tokens.");
/* * i = investment, p = price, t = number of tokens * * i_current = p_initial * t_current (for t_current <= t_initial) * i_current = i_initial + (2/3)(t_current)^(3/2) (for t_current > t_initial) * * t_current = i_current / p_initial (for i_current <= i_initial) * t_current = t_initial + ((3/2)(i_current))^(2/3) (for i_current > i_initial) */
uint tokensToSellAtVariablePrice = _tokens;
uint _0xbtcFromVarPriceTokens;
// Now, actually calculate:
if (tokensToSellAtVariablePrice != 0) {
/* Note: Unlike the sister function in btcToTokens, we don't have to calculate any "virtual" token count.
We have the equations for total investment above; note that this is for TOTAL. To get the 0xbtc received from this sell, we calculate the new total investment after this sell. Note that we divide by 1e6 here as the inverse of multiplying by 1e6 in btcToTokens. */
uint investmentBefore = toPowerOfThreeHalves(tokenSupply.div(MULTIPLIER * 1e6)).mul(2).div(3); uint investmentAfter = toPowerOfThreeHalves((tokenSupply - tokensToSellAtVariablePrice).div(MULTIPLIER * 1e6)).mul(2).div(3);
_0xbtcFromVarPriceTokens = investmentBefore.sub(investmentAfter); }
uint _0xbtcReceived = _0xbtcFromVarPriceTokens;
assert(_0xbtcReceived > 0); return _0xbtcReceived; }
function transferFromInternal(address _from, address _toAddress, uint _amountOfTokens, bytes _data) internal { require(regularPhase); require(_toAddress != address(0x0)); address _customerAddress = _from; uint _amountOfFrontEndTokens = _amountOfTokens;
// Withdraw all outstanding dividends first (including those generated from referrals). if (theDividendsOf(true, _customerAddress) > 0) withdrawFrom(_customerAddress);
// Calculate how many back-end dividend tokens to transfer. // This amount is proportional to the caller's average dividend rate multiplied by the proportion of tokens being transferred. uint _amountOfDivTokens = _amountOfFrontEndTokens.mul(getUserAverageDividendRate(_customerAddress)).div(magnitude);
if (_customerAddress != msg.sender) { // Update the allowed balance. // Don't update this if we are transferring our own tokens (via transfer or buyAndTransfer) allowed[_customerAddress][msg.sender] -= _amountOfTokens; }
// Exchange tokens frontTokenBalanceLedger_[_customerAddress] = frontTokenBalanceLedger_[_customerAddress].sub(_amountOfFrontEndTokens); frontTokenBalanceLedger_[_toAddress] = frontTokenBalanceLedger_[_toAddress].add(_amountOfFrontEndTokens); dividendTokenBalanceLedger_[_customerAddress] = dividendTokenBalanceLedger_[_customerAddress].sub(_amountOfDivTokens); dividendTokenBalanceLedger_[_toAddress] = dividendTokenBalanceLedger_[_toAddress].add(_amountOfDivTokens);
// Recipient inherits dividend percentage if they have not already selected one. if (!userSelectedRate[_toAddress]) { userSelectedRate[_toAddress] = true; userDividendRate[_toAddress] = userDividendRate[_customerAddress]; }
// Update dividend trackers payoutsTo_[_customerAddress] -= (int256)(profitPerDivToken * _amountOfDivTokens); payoutsTo_[_toAddress] += (int256)(profitPerDivToken * _amountOfDivTokens);
uint length;
assembly { length: = extcodesize(_toAddress) }
if (length > 0) { // its a contract // note: at ethereum update ALL addresses are contracts ERC223Receiving receiver = ERC223Receiving(_toAddress); receiver.tokenFallback(_from, _amountOfTokens, _data); }
// Fire logging event. emit Transfer(_customerAddress, _toAddress, _amountOfFrontEndTokens); }
// Called from transferFrom. Always checks if _customerAddress has dividends. function withdrawFrom(address _customerAddress) internal { // Setup data uint _dividends = theDividendsOf(false, _customerAddress);
// update dividend tracker payoutsTo_[_customerAddress] += (int256)(_dividends * magnitude);
// add ref. bonus _dividends += referralBalance_[_customerAddress]; referralBalance_[_customerAddress] = 0;
_dividends = _dividends.div(1e10); //to 8 decimals _0xBTC.transfer(_customerAddress, _dividends); //8 decimals correction
// Fire logging event. emit onWithdraw(_customerAddress, _dividends); }
/*======================= = MATHS FUNCTIONS = ======================*/
function toPowerOfThreeHalves(uint x) public pure returns(uint) { // m = 3, n = 2 // sqrt(x^3) return sqrt(x ** 3); }
function toPowerOfTwoThirds(uint x) public pure returns(uint) { // m = 2, n = 3 // cbrt(x^2) return cbrt(x ** 2); }
function sqrt(uint x) public pure returns(uint y) { uint z = (x + 1) / 2; y = x; while (z < y) { y = z; z = (x / z + z) / 2; } }
function cbrt(uint x) public pure returns(uint y) { uint z = (x + 1) / 3; y = x; while (z < y) { y = z; z = (x / (z * z) + 2 * z) / 3; } } }
/*======================= = INTERFACES = ======================*/
interface _0xBitconnectDividendCards { function ownerOf(uint /*_divCardId*/ ) external pure returns(address);
function receiveDividends(uint amount, uint divCardRate) external; }
interface _0xBitconnectBankroll { function receiveDividends(uint amount) external; }
interface ERC223Receiving { function tokenFallback(address _from, uint _amountOfTokens, bytes _data) external returns(bool); }
// Think it's safe to say y'all know what this is.
library SafeMath {
function mul(uint a, uint b) internal pure returns(uint) { if (a == 0) { return 0; } uint c = a * b; assert(c / a == b); return c; }
function div(uint a, uint b) internal pure returns(uint) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; }
function sub(uint a, uint b) internal pure returns(uint) { assert(b <= a); return a - b; }
function add(uint a, uint b) internal pure returns(uint) { uint c = a + b; assert(c >= a); return c; } } ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FmHQQA8m.gif&t=664&c=Xh_jTiJiq2qKew) 0xbitcoin.org Decentralized Exchange Dice Game The Dice Game requires a 2 steps process first to be executed:
You must approve to the Dice contract the amount of tokens to Bet from your wallet (Automatic Prompt) and then Roll.
The Dice Contract requires that you call the Roll button again or the Finish bet button in the next 500 blocks to enclose the dice roll, if not your bet will be cancelled Lottery Game The Lottery Game requires a 2 steps process first to be executed:
You must approve to the Dice contract the amount of tokens to Bet from your wallet (Automatic Prompt) and then Roll.
The Lottery Contract will only allow any user to take a ticket per wallet per period. Join our community
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It’s hard to say how helpful it will be for the future but it’s obviously simple to know that it’s hugely popular at present. If we just go by the Bitcoin History, it shows that it always has being unstable and that is one major reason why big players are still hesitant to join in it. If the stability comes in then we will absolutely move towards getting the much needed comfort and easiness. It is just impossible without it.
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There is a risk factor which often turns a lot of people down in terms of investment in the Crypto industry, but otherwise this is a great place for investors. We just need to make sure that we have right options selected in order to invest, especially with the Upcoming ICOs. And if we do that then we will for sure be able to get things working nicely to benefit from. If we still fear then we should move to smaller investment first before we make more into it.
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I like trading of all styles not just Crypto. But I would say without any doubt that Crypto Trading is very cool and beneficial especially if it’s done in accurate and sensible way. I am able to work it out so very smoothly thanks to strategies that I can stick with. However, all this works if we have a quality Crypto Broker to work with. So our priority needs to be towards that to be able to generate income and able to withdraw/use without fear.
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This is pretty childish question, to say the least. It doesn’t matter if you are a beginner or expert, if you do things right then you can make profits and there is really no rocket science with it. We just need to use right technique and make sure that we stick to it. One simple tip I will give is to follow major Crypto News, as it is something that will help in ensuring that the results are better for everyone involved, and will only help with performance.
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