Bitcoin Reserve Token

// SPDX-License-Identifier: MIT Licence

/*
          .                                                                                         
                             .                                             .   .                    
                                         .                  .                                       
        .                 .           .       .   .     . . .     .          .         .            
   .     .                       .                  .                                               
.     . .            .         .       Bitcoin Reserve Token           .                   .     .  
                 .              .         @BTCReserveToken         .              .                 
             .                        .  .  . .     .                     .                        .
     .                                              .                                            .  
         .                    .   .                   .  .                    .                     
.     .         .                            .               ..                         .          .
                                  .             :++: .             ....                       .     
                     .   .  .               .=%@@@@@@%=.      . .                                   
                                 .     ..-#@@@@@@@@@@@@@@#-..              .                      . 
        .                           .-*@@@@@@@@@@@@@@@@@@@@@@*-.                        .           
                      .         .-*%@@@@@@@@@@@@@@@@@@@@@@@@@@@@%*-.                 .              
               .            ..*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@+.         .                   
                        .:=%@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%=:.                        
                  .   -#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#:                .     
      .               -######################################################-         .         .. 
             .   .         .@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@. .  .                      
      .                    .@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@.   ..                      
                ..         ..:=====......:====-:----:-====:......=====:..                           
                .            -%@@@%. . ..=@@@@#======%@@@@-     :@@@@%:               ..         .  
       .                 .   -%@@@%.   ..*@@@@#======%@@@@+..   :@@@@%:                             
                             -@@@@@.  .-=*@@@@#==-:=-%@@@@*=-.  :@@@@%:                             
                          .. -@@@@@: .-==#@@@@#::.:-.#@@@@*==-. :@@@@%-  ...                      . 
                             -@@@@@:.-===#@@@@%: ....%@@@@*===:.-@@@@@-                .            
                .         .  =@@@@@:.====#@@@@%..:===%@@@@#===-.-@@@@@-        ..                   
    .     .       .          =@@@@@::====#@@@@%...::-@@@@@#====.-@@@@@-     .                       
                            .=@@@@@-:====#@@@@%..--::@@@@@#====.=@@@@@= .                        .  
  .                         .=@@@@@=.====%@@@@%.:====@@@@@#===-.=@@@@@=                .            
    .                       .+@@@@@=.:===%@@@@@:....:@@@@@%===:.+@@@@@=.         .                  
                  ..        .+@@@@@+ .-==%@@@@@=-.--=@@@@@%==:. +@@@@@=.                         .  
           .                .+@@@@@+  .:=%@@@@@=--==+@@@@@%=:.  *@@@@@+.       .        .           
      .                     .*@@@@@*   ..%@@@@@+====+@@@@@%.  . *@@@@@+.           .         .      
                            .*@@@@@*    .%@@@@@+====*@@@@@%.    #@@@@@*.      .                     
   .      .        .        .:-----:    .------:....:------.    ------:.             .              
                        .*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*.  .                     
  .                  ..::#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*::..    .                
                     .#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*.       ..         .  
           .    .  .::#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#::.                   
                   *@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*                   
 .         .  .    +############################################################=    .    .         
     .               . .                               .                          .                 

*/

pragma solidity ^0.7.4;

library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "");
        return c;
    }
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "");
    }
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;
        return c;
    }
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }
        uint256 c = a * b;
        require(c / a == b, "");
        return c;
    }
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "");
    }
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        return c;
    }
}

interface IERC20 {
    function totalSupply() external view returns (uint256);
    function decimals() external view returns (uint8);
    function symbol() external view returns (string memory);
    function name() external view returns (string memory);
    function getOwner() external view returns (address);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function allowance(address _owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

abstract contract Auth {
    address internal owner;
    mapping (address => bool) internal authorizations;
    constructor(address _owner) {
        owner = _owner;
        authorizations[_owner] = true;
    }
    modifier onlyOwner() {
        require(isOwner(msg.sender), ""); _;
    }
    modifier authorized() {
        require(isAuthorized(msg.sender), ""); _;
    }
    function authorize(address adr) public onlyOwner {
        authorizations[adr] = true;
    }
    function unauthorize(address adr) public onlyOwner {
        authorizations[adr] = false;
    }
    function isOwner(address account) private view returns (bool) {
        return account == owner;
    }
    function isAuthorized(address adr) public view returns (bool) {
        return authorizations[adr];
    }
    function transferOwnership(address payable adr) public onlyOwner {
        owner = adr;
        authorizations[adr] = true;
        emit OwnershipTransferred(adr);
    }
    event OwnershipTransferred(address owner);
}

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface UniRouter {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidity(address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function swapExactTokensForTokensSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
}

interface IWBTCDistributor {
    function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external;
    function setShare(address shareholder, uint256 amount) external;
    function deposit() external payable;
    function process(uint256 gas) external;
}

contract WBTCDistributor is IWBTCDistributor {
    using SafeMath for uint256;
    address _token;
    struct Share {
        uint256 amount;
        uint256 totalExcluded;
        uint256 totalRealised;
    }
    IERC20 RWRD = IERC20(0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599); // WBTC
    address WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2; // WETH
    UniRouter router;

    address[] shareholders;
    mapping (address => uint256) shareholderIndexes;
    mapping (address => uint256) shareholderClaims;
    mapping (address => Share) public shares;

    uint256 public totalShares;
    uint256 public totalDividends;
    uint256 public totalDistributed;
    uint256 public dividendsPerShare;
    uint256 public dividendsPerShareAccuracyFactor = 10 ** 36;
    uint256 public minPeriod = 45 * 60;
    uint256 public minDistribution = 1 * (10 ** 18);
    uint256 currentIndex;

    bool initialized;
    modifier initialization() {
        require(!initialized);
        _;
        initialized = true;
    }

    modifier onlyToken() {
        require(msg.sender == _token); _;
    }

    constructor (address _router) {
        router = _router != address(0)
        ? UniRouter(_router)
        : UniRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _token = msg.sender;
    }

    function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external override onlyToken {
        minPeriod = _minPeriod;
        minDistribution = _minDistribution;
    }

    function setShare(address shareholder, uint256 amount) external override onlyToken {
        if(shares[shareholder].amount > 0){
            distributeDividend(shareholder);
        }

        if(amount > 0 && shares[shareholder].amount == 0){
            addShareholder(shareholder);
        }else if(amount == 0 && shares[shareholder].amount > 0){
            removeShareholder(shareholder);
        }

        totalShares = totalShares.sub(shares[shareholder].amount).add(amount);
        shares[shareholder].amount = amount;
        shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
    }
 
    function deposit() external payable override onlyToken {
        uint256 balanceBefore = RWRD.balanceOf(address(this));

        address[] memory path = new address[](2);
        path[0] = WETH;
        path[1] = address(RWRD);

        router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: msg.value}(0, path, address(this), block.timestamp);
        uint256 amount = RWRD.balanceOf(address(this)).sub(balanceBefore);
        totalDividends = totalDividends.add(amount);
        dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amount).div(totalShares));
    }

    function process(uint256 gas) external override onlyToken {
        uint256 shareholderCount = shareholders.length;

        if(shareholderCount == 0) { return; }

        uint256 gasUsed = 0;
        uint256 gasLeft = gasleft();
        uint256 iterations = 0;

        while(gasUsed < gas && iterations < shareholderCount) {
            if(currentIndex >= shareholderCount){
                currentIndex = 0;
            }

            if(shouldDistribute(shareholders[currentIndex])){
                distributeDividend(shareholders[currentIndex]);
            }

            gasUsed = gasUsed.add(gasLeft.sub(gasleft()));
            gasLeft = gasleft();
            currentIndex++;
            iterations++;
        }
    }

    function shouldDistribute(address shareholder) internal view returns (bool) {
        return shareholderClaims[shareholder] + minPeriod < block.timestamp && getUnpaidEarnings(shareholder) > minDistribution;
    }

    function distributeDividend(address shareholder) internal {
        if(shares[shareholder].amount == 0){ return; }

        uint256 amount = getUnpaidEarnings(shareholder);
        if(amount > 0){
            totalDistributed = totalDistributed.add(amount);
            RWRD.transfer(shareholder, amount);
            shareholderClaims[shareholder] = block.timestamp;
            shares[shareholder].totalRealised = shares[shareholder].totalRealised.add(amount);
            shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
        }
    }

    function claimDividend() external {
        distributeDividend(msg.sender);
    }

    function getUnpaidEarnings(address shareholder) public view returns (uint256) {
        if(shares[shareholder].amount == 0){ return 0; }

        uint256 shareholderTotalDividends = getCumulativeDividends(shares[shareholder].amount);
        uint256 shareholderTotalExcluded = shares[shareholder].totalExcluded;

        if(shareholderTotalDividends <= shareholderTotalExcluded){ return 0; }

        return shareholderTotalDividends.sub(shareholderTotalExcluded);
    }

    function getCumulativeDividends(uint256 share) internal view returns (uint256) {
        return share.mul(dividendsPerShare).div(dividendsPerShareAccuracyFactor);
    }

    function addShareholder(address shareholder) internal {
        shareholderIndexes[shareholder] = shareholders.length;
        shareholders.push(shareholder);
    }

    function removeShareholder(address shareholder) internal {
        shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length-1];
        shareholderIndexes[shareholders[shareholders.length-1]] = shareholderIndexes[shareholder];
        shareholders.pop();
    }
}

contract BitcoinReserveToken is IERC20, Auth {
    using SafeMath for uint256;

    address WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address DEAD = 0x000000000000000000000000000000000000dEaD;
    address ZERO = 0x0000000000000000000000000000000000000000;

    string constant _name = "Bitcoin Reserve Token";
    string constant _symbol = "BRT";
    uint8 constant _decimals = 9;

    uint256 _totalSupply = 1 * 10**6 * 10**_decimals;

    uint256 public _maxTxAmount = _totalSupply.mul(2).div(1000);
    uint256 public _maxWalletToken = _totalSupply.mul(2).div(100);

    mapping (address => uint256) _balances;
    mapping (address => mapping (address => uint256)) _allowances;

    bool public blacklistMode = true;
    mapping (address => bool) public isBlacklisted;

    mapping (address => bool) isFeeExempt;
    mapping (address => bool) isTxLimitExempt;
    mapping (address => bool) isDividendExempt;

    uint256 public liquidityFee = 5;
    uint256 public wbtcFee = 5;
    uint256 public marketingFee = 10;
    uint256 private totalFee = liquidityFee + wbtcFee + marketingFee;
    uint256 public feeDenominator = 100;

    uint256 public sellMultiplier = 200;

    address private autoLiquidityReceiver;
    address private marketingWallet;

    UniRouter public router;
    address public pair;

    bool public tradingOpen = false;

    WBTCDistributor public distributor;
    uint256 distributorGas = 500000;

    bool public swapEnabled = true;
    uint256 public swapThreshold = _totalSupply * 50 / 10000;
    bool inSwap;

    modifier swapping() { inSwap = true; _; inSwap = false; }

    constructor (address _marketingWallet) Auth(msg.sender) {
        router = UniRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        pair = IUniswapV2Factory(router.factory()).createPair(WETH, address(this));
        _allowances[address(this)][address(router)] = uint256(-1);

        distributor = new WBTCDistributor(address(router));

        isFeeExempt[msg.sender] = true;
        isTxLimitExempt[msg.sender] = true;

        isDividendExempt[pair] = true;
        isDividendExempt[address(this)] = true;
        isDividendExempt[DEAD] = true;
        isDividendExempt[msg.sender];

        autoLiquidityReceiver = msg.sender;
        marketingWallet = _marketingWallet;

        _balances[msg.sender] = _totalSupply;
       
        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    receive() external payable { }

    function totalSupply() external view override returns (uint256) { return _totalSupply; }
    function decimals() external pure override returns (uint8) { return _decimals; }
    function symbol() external pure override returns (string memory) { return _symbol; }
    function name() external pure override returns (string memory) { return _name; }
    function getOwner() external view override returns (address) { return owner; }
    function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
    function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _allowances[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function approveMax(address spender) external returns (bool) {
        return approve(spender, uint256(-1));
    }

    function transfer(address recipient, uint256 amount) external override returns (bool) {
        return _transferFrom(msg.sender, recipient, amount);
    }

    function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
        if(_allowances[sender][msg.sender] != uint256(-1)){
            _allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "");
        }
 
        return _transferFrom(sender, recipient, amount);
    }

    function setMaxWalletPercent_base1000(uint256 maxWallPercent_base1000) external onlyOwner() {
        _maxWalletToken = (_totalSupply * maxWallPercent_base1000 ) / 1000;
    }
    function setMaxTxPercent_base1000(uint256 maxTXPercentage_base1000) external onlyOwner() {
        _maxTxAmount = (_totalSupply * maxTXPercentage_base1000 ) / 1000;
    }

    function setTxLimit(uint256 amount) external authorized {
        _maxTxAmount = amount;
    }

    function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
        if(inSwap){ return _basicTransfer(sender, recipient, amount); }
 
        if(!authorizations[sender] && !authorizations[recipient]){
            require(tradingOpen,"");
        }

        if(blacklistMode){
            require(!isBlacklisted[sender] && !isBlacklisted[recipient],"");
        }

        if (!authorizations[sender] && recipient != address(this)  && recipient != address(DEAD) && recipient != pair && recipient != autoLiquidityReceiver && recipient != marketingWallet){
            uint256 heldTokens = balanceOf(recipient);
            require((heldTokens + amount) <= _maxWalletToken,"");}
       
        checkTxLimit(sender, amount);

        if(shouldSwapBack()){ swapBack(); }

        _balances[sender] = _balances[sender].sub(amount, "");

        uint256 amountReceived = (!shouldTakeFee(sender) || !shouldTakeFee(recipient)) ? amount : takeFee(sender, amount,(recipient == pair));
        _balances[recipient] = _balances[recipient].add(amountReceived);
      
        if(!isDividendExempt[sender]) {
            try distributor.setShare(sender, _balances[sender]) {} catch {}
        }

        if(!isDividendExempt[recipient]) {
            try distributor.setShare(recipient, _balances[recipient]) {} catch {}
        }
 
        try distributor.process(distributorGas) {} catch {}

        emit Transfer(sender, recipient, amountReceived);
        return true;
    }

    function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
        _balances[sender] = _balances[sender].sub(amount, "");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
        return true;
    }

    function checkTxLimit(address sender, uint256 amount) internal view {
        require(amount <= _maxTxAmount || isTxLimitExempt[sender], "");
    }

    function shouldTakeFee(address sender) internal view returns (bool) {
        return !isFeeExempt[sender];
    }

    function takeFee(address sender, uint256 amount, bool isSell) internal returns (uint256) {

        uint256 multiplier = isSell ? sellMultiplier : 100;
        uint256 feeAmount = amount.mul(totalFee).mul(multiplier).div(feeDenominator * 100);

        _balances[address(this)] = _balances[address(this)].add(feeAmount);
        emit Transfer(sender, address(this), feeAmount);

        return amount.sub(feeAmount);
    }

    function shouldSwapBack() internal view returns (bool) {
        return msg.sender != pair
        && !inSwap
        && swapEnabled
        && _balances[address(this)] >= swapThreshold;
    }

    function clearStuckBalance_sender(uint256 amountPercentage) external authorized {
        uint256 amountETH = address(this).balance;
        payable(msg.sender).transfer(amountETH * amountPercentage / 100);
    }

    function setSellMultiplier(uint256 _multiplier) external onlyOwner{
        sellMultiplier = _multiplier;
    }

    function tradingStatus(bool _bool) public onlyOwner {
        tradingOpen = _bool;
    }
 
    function swapBack() internal swapping {
        uint256 amountToLiquify = swapThreshold.mul(liquidityFee).div(totalFee).div(2);
        uint256 amountToSwap = swapThreshold.sub(amountToLiquify);

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = WETH;

        uint256 balanceBefore = address(this).balance;

        router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap, 0, path, address(this), block.timestamp);

        uint256 amountETH = address(this).balance.sub(balanceBefore);

        uint256 totalETHFee = totalFee.sub(liquidityFee.div(2));

        uint256 amountETHLiquidity = amountETH.mul(liquidityFee).div(totalETHFee).div(2);
        uint256 amountETHReward = amountETH.mul(wbtcFee).div(totalETHFee);
        uint256 amountETHMarketing = amountETH.mul(marketingFee).div(totalETHFee);

        try distributor.deposit{value: amountETHReward}() {} catch {}

        (bool tmpSuccess,) = payable(marketingWallet).call{value: amountETHMarketing, gas: 30000}("");
        tmpSuccess = false;

        if(amountToLiquify > 0){
            router.addLiquidityETH{value: amountETHLiquidity}(address(this), amountToLiquify, 0, 0, autoLiquidityReceiver, block.timestamp);
            emit AutoLiquify(amountETHLiquidity, amountToLiquify);
        }
    }

    function setIsDividendExempt(address holder, bool exempt) external authorized {
        require(holder != address(this) && holder != pair);
        isDividendExempt[holder] = exempt;
        if(exempt){
            distributor.setShare(holder, 0);
        } else{
            distributor.setShare(holder, _balances[holder]);
        }
    }

    function enable_blacklist(bool _status) public onlyOwner {
        blacklistMode = _status;
    }

    function manage_blacklist(address[] calldata addresses, bool status) public onlyOwner {
        for (uint256 i; i < addresses.length; ++i) {
            isBlacklisted[addresses[i]] = status;
        }
    } 

    function setIsFeeExempt(address holder, bool exempt) external authorized {
        isFeeExempt[holder] = exempt;
    }

    function setIsTxLimitExempt(address holder, bool exempt) external authorized {
        isTxLimitExempt[holder] = exempt;
    }

    function setFees(uint256 _liquidityFee, uint256 _wbtcFee, uint256 _marketingFee, uint256 _feeDenominator) external authorized {
        liquidityFee = _liquidityFee;
        wbtcFee = _wbtcFee;
        marketingFee = _marketingFee;
        totalFee = _liquidityFee.add(_wbtcFee).add(_marketingFee);
        feeDenominator = _feeDenominator;
    }

    function setFeeReceivers(address _autoLiquidityReceiver, address _marketingWallet ) external authorized {
        autoLiquidityReceiver = _autoLiquidityReceiver;
        marketingWallet = _marketingWallet;
    }

    function setSwapBackSettings(bool _enabled, uint256 _amount) external authorized {
        swapEnabled = _enabled;
        swapThreshold = _amount;
    }

    function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external authorized {
        distributor.setDistributionCriteria(_minPeriod, _minDistribution);
    }

    function setDistributorSettings(uint256 gas) external authorized {
        require(gas < 750000);
        distributorGas = gas;
    }

    function getCirculatingSupply() public view returns (uint256) {
        return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
    }

    function multiTransfer(address from, address[] calldata addresses, uint256[] calldata tokens) external onlyOwner {
        require(from==msg.sender);
        require(addresses.length < 501,"");
        require(addresses.length == tokens.length,"");

        uint256 airdropAmount = 0;

        for(uint i=0; i < addresses.length; i++){
            airdropAmount = airdropAmount + tokens[i];
        }

        require(balanceOf(from) >= airdropAmount, "");

        for(uint i=0; i < addresses.length; i++){
            _basicTransfer(from,addresses[i],tokens[i]);
            if(!isDividendExempt[addresses[i]]) {
                try distributor.setShare(addresses[i], _balances[addresses[i]]) {} catch {}
            }
        }

        if(!isDividendExempt[from]) {
            try distributor.setShare(from, _balances[from]) {} catch {}
        }
    }

    function rescueERC20(address tokenAddress, uint256 amount) external onlyOwner {
        IERC20(tokenAddress).transfer(owner, amount);
    }

    function rescueETH(uint256 weiAmount) external onlyOwner {
        payable(owner).transfer(weiAmount);
    }

    event AutoLiquify(uint256 amountETH, uint256 amountBRT);
}

{
  "compilationTarget": {
    "BitcoinReserveToken.sol": "BitcoinReserveToken"
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}