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Transaction Hash
Method
Block
From
To
Transfer Ownersh...413724722023-04-10 15:30:05470 days ago1681140605IN
0x1dfdE6E4...C6A827E09
0 MATIC0.01018495355
Exit347759722022-10-25 9:08:34638 days ago1666688914IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0149007790.2076761
Exit347759272022-10-25 9:07:00638 days ago1666688820IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0127935694.1277454
Get All Rewards347759062022-10-25 9:06:18638 days ago1666688778IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0089131185.82929594
Exit346637312022-10-22 15:14:51640 days ago1666451691IN
0x1dfdE6E4...C6A827E09
0 MATIC0.01776547252.90739494
Exit346637312022-10-22 15:14:51640 days ago1666451691IN
0x1dfdE6E4...C6A827E09
0 MATIC0.02327876157.20079907
Exit342184712022-10-11 17:42:13651 days ago1665510133IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0049554930.00000003
Exit338044172022-10-01 17:43:09661 days ago1664646189IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0040775130.00000001
Get All Rewards338044092022-10-01 17:42:49661 days ago1664646169IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0031154130.00000001
Exit335278872022-09-25 0:26:48668 days ago1664065608IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0040775130.00000001
Get All Rewards335277632022-09-25 0:22:32668 days ago1664065352IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0031754130.00000001
Exit330677202022-09-13 21:00:27679 days ago1663102827IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0049556530.00100003
Exit328605002022-09-08 20:55:45684 days ago1662670545IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0049146233.188301
Exit328089572022-09-07 15:04:16685 days ago1662563056IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0040775130.00000003
Get All Rewards328089172022-09-07 15:02:56685 days ago1662562976IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0036284130.00000003
Exit325368972022-09-01 1:31:04692 days ago1661995864IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0040775130.00001023
Exit319982592022-08-17 14:45:08706 days ago1660747508IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0132250389.30827519
Exit318754542022-08-14 9:15:16710 days ago1660468516IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0049554930.00000001
Exit317644002022-08-11 10:04:11712 days ago1660212251IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0049555530.00039852
Exit316054002022-08-07 0:34:28717 days ago1659832468IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0049554930.0000002
Exit314744772022-08-03 13:44:17720 days ago1659534257IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0157515395.35807537
Exit314658092022-08-03 8:24:54721 days ago1659515094IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0043842230.01189307
Stake313763072022-08-01 2:15:30723 days ago1659320130IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0049283530.06999999
Exit313703252022-07-31 22:44:51723 days ago1659307491IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0053147432.17490009
Exit313189092022-07-30 15:12:15724 days ago1659193935IN
0x1dfdE6E4...C6A827E09
0 MATIC0.0056507731
View all transactions

Latest 1 internal transaction

Parent Transaction Hash Block From To
284699922022-05-18 13:33:42797 days ago1652880822  Contract Creation0 MATIC
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x3b5f408B...3CA5AA4D1
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
PotPool

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 14 : PotPool.sol
// SPDX-License-Identifier: Unlicense
pragma solidity 0.6.12;

import "./inheritance/Controllable.sol";
import "./interface/IController.sol";

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";
import "@openzeppelin/contracts/math/Math.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/GSN/Context.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

abstract contract IRewardDistributionRecipient is Ownable {

    mapping (address => bool) public rewardDistribution;

    constructor(address[] memory _rewardDistributions) public {
        // multisig on Matic
        rewardDistribution[0x39cC360806b385C96969ce9ff26c23476017F652] = true;
        // NotifyHelper
        rewardDistribution[0xF71042C88458ff1702c3870f62F4c764712Cc9F0] = true;

        for(uint256 i = 0; i < _rewardDistributions.length; i++) {
          rewardDistribution[_rewardDistributions[i]] = true;
        }
    }

    function notifyTargetRewardAmount(address rewardToken, uint256 reward) external virtual;
    function notifyRewardAmount(uint256 reward) external virtual;

    modifier onlyRewardDistribution() {
        require(rewardDistribution[_msgSender()], "Caller is not reward distribution");
        _;
    }

    function setRewardDistribution(address[] calldata _newRewardDistribution, bool _flag)
        external
        onlyOwner
    {
        for(uint256 i = 0; i < _newRewardDistribution.length; i++){
          rewardDistribution[_newRewardDistribution[i]] = _flag;
        }
    }
}

contract PotPool is IRewardDistributionRecipient, Controllable, ERC20 {

    using Address for address;
    using SafeERC20 for IERC20;
    using SafeMath for uint256;

    address public lpToken;
    uint256 public duration; // making it not a constant is less gas efficient, but portable

    mapping(address => uint256) public stakedBalanceOf;

    mapping (address => bool) smartContractStakers;
    address[] public rewardTokens;
    mapping(address => uint256) public periodFinishForToken;
    mapping(address => uint256) public rewardRateForToken;
    mapping(address => uint256) public lastUpdateTimeForToken;
    mapping(address => uint256) public rewardPerTokenStoredForToken;
    mapping(address => mapping(address => uint256)) public userRewardPerTokenPaidForToken;
    mapping(address => mapping(address => uint256)) public rewardsForToken;

    event RewardAdded(address rewardToken, uint256 reward);
    event Staked(address indexed user, uint256 amount);
    event Withdrawn(address indexed user, uint256 amount);
    event RewardPaid(address indexed user, address rewardToken, uint256 reward);
    event RewardDenied(address indexed user, address rewardToken, uint256 reward);
    event SmartContractRecorded(address indexed smartContractAddress, address indexed smartContractInitiator);

    modifier onlyGovernanceOrRewardDistribution() {
      require(msg.sender == governance() || rewardDistribution[msg.sender], "Not governance nor reward distribution");
      _;
    }

    modifier updateRewards(address account) {
      for(uint256 i = 0; i < rewardTokens.length; i++ ){
        address rt = rewardTokens[i];
        rewardPerTokenStoredForToken[rt] = rewardPerToken(rt);
        lastUpdateTimeForToken[rt] = lastTimeRewardApplicable(rt);
        if (account != address(0)) {
            rewardsForToken[rt][account] = earned(rt, account);
            userRewardPerTokenPaidForToken[rt][account] = rewardPerTokenStoredForToken[rt];
        }
      }
      _;
    }

    modifier updateReward(address account, address rt){
      rewardPerTokenStoredForToken[rt] = rewardPerToken(rt);
      lastUpdateTimeForToken[rt] = lastTimeRewardApplicable(rt);
      if (account != address(0)) {
          rewardsForToken[rt][account] = earned(rt, account);
          userRewardPerTokenPaidForToken[rt][account] = rewardPerTokenStoredForToken[rt];
      }
      _;
    }

    /** View functions to respect old interface */
    function rewardToken() public view returns(address) {
      return rewardTokens[0];
    }

    function rewardPerToken() public view returns(uint256) {
      return rewardPerToken(rewardTokens[0]);
    }

    function periodFinish() public view returns(uint256) {
      return periodFinishForToken[rewardTokens[0]];
    }

    function rewardRate() public view returns(uint256) {
      return rewardRateForToken[rewardTokens[0]];
    }

    function lastUpdateTime() public view returns(uint256) {
      return lastUpdateTimeForToken[rewardTokens[0]];
    }

    function rewardPerTokenStored() public view returns(uint256) {
      return rewardPerTokenStoredForToken[rewardTokens[0]];
    }

    function userRewardPerTokenPaid(address user) public view returns(uint256) {
      return userRewardPerTokenPaidForToken[rewardTokens[0]][user];
    }

    function rewards(address user) public view returns(uint256) {
      return rewardsForToken[rewardTokens[0]][user];
    }

    // [Hardwork] setting the reward, lpToken, duration, and rewardDistribution for each pool
    constructor(
        address[] memory _rewardTokens,
        address _lpToken,
        uint256 _duration,
        address[] memory _rewardDistribution,
        address _storage,
        string memory _name,
        string memory _symbol,
        uint8 _decimals
      ) public
      ERC20(_name, _symbol)
      IRewardDistributionRecipient(_rewardDistribution)
      Controllable(_storage) // only used for referencing the grey list
    {
        require(_decimals == ERC20(_lpToken).decimals(), "decimals has to be aligned with the lpToken");
        require(_rewardTokens.length != 0, "should initialize with at least 1 rewardToken");
        rewardTokens = _rewardTokens;
        lpToken = _lpToken;
        duration = _duration;
    }

    function lastTimeRewardApplicable(uint256 i) public view returns (uint256) {
        return lastTimeRewardApplicable(rewardTokens[i]);
    }

    function lastTimeRewardApplicable(address rt) public view returns (uint256) {
        return Math.min(block.timestamp, periodFinishForToken[rt]);
    }

    function lastTimeRewardApplicable() public view returns (uint256) {
        return lastTimeRewardApplicable(rewardTokens[0]);
    }

    function rewardPerToken(uint256 i) public view returns (uint256) {
        return rewardPerToken(rewardTokens[i]);
    }

    function rewardPerToken(address rt) public view returns (uint256) {
        if (totalSupply() == 0) {
            return rewardPerTokenStoredForToken[rt];
        }
        return
            rewardPerTokenStoredForToken[rt].add(
                lastTimeRewardApplicable(rt)
                    .sub(lastUpdateTimeForToken[rt])
                    .mul(rewardRateForToken[rt])
                    .mul(1e18)
                    .div(totalSupply())
            );
    }

    function earned(uint256 i, address account) public view returns (uint256) {
        return earned(rewardTokens[i], account);
    }

    function earned(address account) public view returns (uint256) {
        return earned(rewardTokens[0], account);
    }

    function earned(address rt, address account) public view returns (uint256) {
        return
            stakedBalanceOf[account]
                .mul(rewardPerToken(rt).sub(userRewardPerTokenPaidForToken[rt][account]))
                .div(1e18)
                .add(rewardsForToken[rt][account]);
    }

    function stake(uint256 amount) public updateRewards(msg.sender) {
        require(amount > 0, "Cannot stake 0");
        recordSmartContract();
        super._mint(msg.sender, amount); // ERC20 is used as a staking receipt
        stakedBalanceOf[msg.sender] = stakedBalanceOf[msg.sender].add(amount);
        IERC20(lpToken).safeTransferFrom(msg.sender, address(this), amount);
        emit Staked(msg.sender, amount);
    }

    function withdraw(uint256 amount) public updateRewards(msg.sender) {
        require(amount > 0, "Cannot withdraw 0");
        super._burn(msg.sender, amount);
        stakedBalanceOf[msg.sender] = stakedBalanceOf[msg.sender].sub(amount);
        IERC20(lpToken).safeTransfer(msg.sender, amount);
        emit Withdrawn(msg.sender, amount);
    }

    function exit() external {
        withdraw(Math.min(stakedBalanceOf[msg.sender], balanceOf(msg.sender)));
        getAllRewards();
    }

    /// A push mechanism for accounts that have not claimed their rewards for a long time.
    /// The implementation is semantically analogous to getReward(), but uses a push pattern
    /// instead of pull pattern.
    function pushAllRewards(address recipient) public updateRewards(recipient) onlyGovernance {
      bool rewardPayout = (!smartContractStakers[recipient] || !IController(controller()).greyList(recipient));
      for(uint256 i = 0 ; i < rewardTokens.length; i++ ){
        uint256 reward = earned(rewardTokens[i], recipient);
        if (reward > 0) {
            rewardsForToken[rewardTokens[i]][recipient] = 0;
            // If it is a normal user and not smart contract,
            // then the requirement will pass
            // If it is a smart contract, then
            // make sure that it is not on our greyList.
            if (rewardPayout) {
                IERC20(rewardTokens[i]).safeTransfer(recipient, reward);
                emit RewardPaid(recipient, rewardTokens[i], reward);
            } else {
                emit RewardDenied(recipient, rewardTokens[i], reward);
            }
        }
      }
    }

    function getAllRewards() public updateRewards(msg.sender) {
      recordSmartContract();
      bool rewardPayout = (!smartContractStakers[msg.sender] || !IController(controller()).greyList(msg.sender));
      for(uint256 i = 0 ; i < rewardTokens.length; i++ ){
        _getRewardAction(rewardTokens[i], rewardPayout);
      }
    }

    function getReward(address rt) public updateReward(msg.sender, rt) {
      recordSmartContract();
      _getRewardAction(
        rt,
        // don't payout if it is a grey listed smart contract
        (!smartContractStakers[msg.sender] || !IController(controller()).greyList(msg.sender))
      );
    }

    function getReward() public {
      getReward(rewardTokens[0]);
    }

    function _getRewardAction(address rt, bool rewardPayout) internal {
      uint256 reward = earned(rt, msg.sender);
      if (reward > 0 && IERC20(rt).balanceOf(address(this)) >= reward ) {
          rewardsForToken[rt][msg.sender] = 0;
          // If it is a normal user and not smart contract,
          // then the requirement will pass
          // If it is a smart contract, then
          // make sure that it is not on our greyList.
          if (rewardPayout) {
              IERC20(rt).safeTransfer(msg.sender, reward);
              emit RewardPaid(msg.sender, rt, reward);
          } else {
              emit RewardDenied(msg.sender, rt, reward);
          }
      }
    }

    function addRewardToken(address rt) public onlyGovernanceOrRewardDistribution {
      require(getRewardTokenIndex(rt) == uint256(-1), "Reward token already exists");
      rewardTokens.push(rt);
    }

    function removeRewardToken(address rt) public onlyGovernanceOrRewardDistribution {
      uint256 i = getRewardTokenIndex(rt);
      require(i != uint256(-1), "Reward token does not exists");
      require(periodFinishForToken[rewardTokens[i]] < block.timestamp, "Can only remove when the reward period has passed");
      require(rewardTokens.length > 1, "Cannot remove the last reward token");
      uint256 lastIndex = rewardTokens.length - 1;

      // swap
      rewardTokens[i] = rewardTokens[lastIndex];

      // delete last element
      rewardTokens.pop();
    }

    // If the return value is MAX_UINT256, it means that
    // the specified reward token is not in the list
    function getRewardTokenIndex(address rt) public view returns(uint256) {
      for(uint i = 0 ; i < rewardTokens.length ; i++){
        if(rewardTokens[i] == rt)
          return i;
      }
      return uint256(-1);
    }

    function notifyTargetRewardAmount(address _rewardToken, uint256 reward)
        public override
        onlyRewardDistribution
        updateRewards(address(0))
    {
        // overflow fix according to https://sips.synthetix.io/sips/sip-77
        require(reward < uint(-1) / 1e18, "the notified reward cannot invoke multiplication overflow");

        uint256 i = getRewardTokenIndex(_rewardToken);
        require(i != uint256(-1), "rewardTokenIndex not found");

        if (block.timestamp >= periodFinishForToken[_rewardToken]) {
            rewardRateForToken[_rewardToken] = reward.div(duration);
        } else {
            uint256 remaining = periodFinishForToken[_rewardToken].sub(block.timestamp);
            uint256 leftover = remaining.mul(rewardRateForToken[_rewardToken]);
            rewardRateForToken[_rewardToken] = reward.add(leftover).div(duration);
        }
        lastUpdateTimeForToken[_rewardToken] = block.timestamp;
        periodFinishForToken[_rewardToken] = block.timestamp.add(duration);
        emit RewardAdded(_rewardToken, reward);
    }

    function notifyRewardAmount(uint256 reward)
        external override
        onlyRewardDistribution
        updateRewards(address(0))
    {
      notifyTargetRewardAmount(rewardTokens[0], reward);
    }

    function rewardTokensLength() public view returns(uint256){
      return rewardTokens.length;
    }

    // Harvest Smart Contract recording
    function recordSmartContract() internal {
      if( tx.origin != msg.sender ) {
        smartContractStakers[msg.sender] = true;
        emit SmartContractRecorded(msg.sender, tx.origin);
      }
    }

}

File 2 of 14 : Controllable.sol
//SPDX-License-Identifier: Unlicense

pragma solidity 0.6.12;

import "./Governable.sol";

contract Controllable is Governable {

  constructor(address _storage) Governable(_storage) public {
  }

  modifier onlyController() {
    require(store.isController(msg.sender), "Not a controller");
    _;
  }

  modifier onlyControllerOrGovernance(){
    require((store.isController(msg.sender) || store.isGovernance(msg.sender)),
      "The caller must be controller or governance");
    _;
  }

  function controller() public view returns (address) {
    return store.controller();
  }
}

File 3 of 14 : IController.sol
//SPDX-License-Identifier: Unlicense

pragma solidity 0.6.12;

interface IController {
    // [Grey list]
    // An EOA can safely interact with the system no matter what.
    // If you're using Metamask, you're using an EOA.
    // Only smart contracts may be affected by this grey list.
    //
    // This contract will not be able to ban any EOA from the system
    // even if an EOA is being added to the greyList, he/she will still be able
    // to interact with the whole system as if nothing happened.
    // Only smart contracts will be affected by being added to the greyList.
    // This grey list is only used in Vault.sol, see the code there for reference
    function greyList(address _target) external view returns(bool);

    function addVaultAndStrategy(address _vault, address _strategy) external;
    function doHardWork(address _vault) external;

    function salvage(address _token, uint256 amount) external;
    function salvageStrategy(address _strategy, address _token, uint256 amount) external;

    function notifyFee(address _underlying, uint256 fee) external;
    function profitSharingNumerator() external view returns (uint256);
    function profitSharingDenominator() external view returns (uint256);

    function feeRewardForwarder() external view returns(address);
    function setFeeRewardForwarder(address _value) external;
}

File 4 of 14 : IERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

File 5 of 14 : ERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../../utils/Context.sol";
import "./IERC20.sol";
import "../../math/SafeMath.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20 {
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    constructor (string memory name_, string memory symbol_) public {
        _name = name_;
        _symbol = symbol_;
        _decimals = 18;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return _decimals;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Sets {decimals} to a value other than the default one of 18.
     *
     * WARNING: This function should only be called from the constructor. Most
     * applications that interact with token contracts will not expect
     * {decimals} to ever change, and may work incorrectly if it does.
     */
    function _setupDecimals(uint8 decimals_) internal virtual {
        _decimals = decimals_;
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}

File 6 of 14 : SafeERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./IERC20.sol";
import "../../math/SafeMath.sol";
import "../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 7 of 14 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

File 8 of 14 : Math.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow, so we distribute
        return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);
    }
}

File 9 of 14 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 10 of 14 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../utils/Context.sol";

File 11 of 14 : Ownable.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../utils/Context.sol";
/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

File 12 of 14 : Governable.sol
//SPDX-License-Identifier: Unlicense

pragma solidity 0.6.12;

import "./Storage.sol";

contract Governable {

  Storage public store;

  constructor(address _store) public {
    require(_store != address(0), "new storage shouldn't be empty");
    store = Storage(_store);
  }

  modifier onlyGovernance() {
    require(store.isGovernance(msg.sender), "Not governance");
    _;
  }

  function setStorage(address _store) public onlyGovernance {
    require(_store != address(0), "new storage shouldn't be empty");
    store = Storage(_store);
  }

  function governance() public view returns (address) {
    return store.governance();
  }
}

File 13 of 14 : Storage.sol
//SPDX-License-Identifier: Unlicense

pragma solidity 0.6.12;

contract Storage {

  address public governance;
  address public controller;

  constructor() public {
    governance = msg.sender;
  }

  modifier onlyGovernance() {
    require(isGovernance(msg.sender), "Not governance");
    _;
  }

  function setGovernance(address _governance) public onlyGovernance {
    require(_governance != address(0), "new governance shouldn't be empty");
    governance = _governance;
  }

  function setController(address _controller) public onlyGovernance {
    require(_controller != address(0), "new controller shouldn't be empty");
    controller = _controller;
  }

  function isGovernance(address account) public view returns (bool) {
    return account == governance;
  }

  function isController(address account) public view returns (bool) {
    return account == controller;
  }
}

File 14 of 14 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

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dress","name":"account","type":"address"}],"name":"earned","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"exit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getAllRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"rt","type":"address"}],"name":"getReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"rt","type":"address"}],"name":"getRewardTokenIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"governance","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"rt","type":"address"}],"name":"lastTimeRewardApplicable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastTimeRewardApplicable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"i","type":"uint256"}],"name":"lastTimeRewardApplicable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastUpdateTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"lastUpdateTimeForToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lpToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"reward","type":"uint256"}],"name":"notifyRewardAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_rewardToken","type":"address"},{"internalType":"uint256","name":"reward","type":"uint256"}],"name":"notifyTargetRewardAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"periodFinish","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"periodFinishForToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"}],"name":"pushAllRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"rt","type":"address"}],"name":"removeRewardToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"rewardDistribution","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"i","type":"uint256"}],"name":"rewardPerToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardPerToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"rt","type":"address"}],"name":"rewardPerToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardPerTokenStored","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"rewardPerTokenStoredForToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"functi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Deployed Bytecode

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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.