Contract 0xe14f46ee1e23b68003bced6d85465455a309dfff

Contract Overview

Balance:
0 BNB
Txn Hash
Block
From
To
Value [Txn Fee]
0x3db755345ba01063de3c491355d29d71e1fd6d9376c8ff58781f8beb91dea08981689052021-04-21 9:21:281 hr 19 mins ago0xe92afab213ea7620ec8157de7e6843a416c8d118 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0x9394e39887296e6705f9ea36386848bc648788f5d8f795f30cb240445d0ddcdf81688192021-04-21 9:17:101 hr 23 mins ago0x030fab76fa67b55255a37fd3131ab27733f09839 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0x4b03c21150d8e5b1e786f3644f9e3f2e767f14b9766b50f760d298bdaac9014d81611392021-04-21 2:53:107 hrs 47 mins ago0xc51c921ba585aaf09cb4d5914f35e35f26273ade IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0x11000b02b23078e8ffd6675c9b966bbf27ea67f6cf58444242a64465a1a2708a81493772021-04-20 17:05:0417 hrs 35 mins ago0xb5602958c653640e920755521eb3a3be983819a8 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00139589
0x50d7593bf5375d1824c14b94235ed561eb80862d8df99cadac40af0fc0fecfdc81425532021-04-20 11:23:5223 hrs 16 mins ago0x31ea2730a76c7d480bba0267eb91d02a3087ea88 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00077737
0x5056400ae64b4b5e56638ef43ec8516872230c65679fa81fad2bf4fe2b5c4cab81423452021-04-20 11:13:2823 hrs 27 mins ago0xb8048009959df63aaa439fe0c1448b46d805a464 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00077737
0x1ae74fd0adbac1f02b251cafaab35bb191a94c842c526fa4946986f05d1b37e781422232021-04-20 11:07:2223 hrs 33 mins ago0xc0ad41dce484e79767d224722f0c8f1b330a9f42 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00107737
0xb8c6660fc1aa1ec14307f425843a250a7cf23d0166244c8829882f9a6bffaea981416292021-04-20 10:37:401 day 3 mins ago0x56a2a358d687a40e3bfd2be28e69ab229e0b444e IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00126034
0x65bcd3948c681359854fe9e017c5c3f96af40cfacfc295f7e7e5876b23e6666d81415622021-04-20 10:34:191 day 6 mins ago0x56a2a358d687a40e3bfd2be28e69ab229e0b444e IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00154589
0x637d77e9c2e179cf08a69c194140297a05f87ba12547bede3fdc649eccaa2bef81397492021-04-20 9:03:401 day 1 hr ago0x0e0bf22e3595687a8756e1e9862a20944d0be57e IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0x245c6dcafbf99032951af333d13b845f26ad4d2b47c09126a94bdd4c68085bbd81396702021-04-20 8:59:431 day 1 hr ago0x56a2a358d687a40e3bfd2be28e69ab229e0b444e IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00058848
0x05f441c4a3b9de362ae61789b1458acd4caf14d4a1219c2734b4b6b3b6b4491a81396532021-04-20 8:58:521 day 1 hr ago0xc84050cd4d2b57c2bbdb71479205b55ad7de050d IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00056338
0x1675954740762cf9c43001c0971256825c5b7352ed0654e86ba54da171bc376a81395012021-04-20 8:51:161 day 1 hr ago0x56a2a358d687a40e3bfd2be28e69ab229e0b444e IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00061824
0xb2c8bdc2d103689dbf57704830d5af2e8330b36214aef52434a808d59a1fa41b81391092021-04-20 8:31:401 day 2 hrs ago0x56a2a358d687a40e3bfd2be28e69ab229e0b444e IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00107737
0xf9efd89ac3f254a013530586c23e4cf81e78c407adfe3aed0c79b1d83086765381343472021-04-20 4:33:341 day 6 hrs ago0x56a2a358d687a40e3bfd2be28e69ab229e0b444e IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0xf0d36019e3dfbbd4be8bae128d99a2c35d540b80a3bf066580f65a86291e35db81226502021-04-19 18:48:431 day 15 hrs ago0x11dd3b4e48abe3a9c970d84c5c83a9e36f46d3b4 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0xae10155dd46ed94b3d073cfaf85f593530e1ff6fcb4bef750eed6080ea6c943c81150752021-04-19 12:29:581 day 22 hrs ago0x8a431109f2ea42d7f9d655980785747dc32e597f IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0xf3e0036e149cced6e5b695a7a494272a5714e34777270521ad50b5196071cb2381140532021-04-19 11:38:521 day 23 hrs ago0x409e472270c9437a96c9e8b0c5410f43c449185f IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0x47aa5ec271c86df5860ba40e5ca0871e39b890295df5a30cf3d4f3c345250d9681140092021-04-19 11:36:401 day 23 hrs ago0xd951e93905c0f927c36460c1dc3995f18712636a IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0x5b8803d2c39ddc2c24414f05c616018fa6cb5a45a5f08076c0e0a332c96e85c781139392021-04-19 11:33:101 day 23 hrs ago0x2c8f06c21e3dfcb6bfe98b9610d2bb0b61a3c685 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00066636
0x8c10d7bccbc85b9b1819e3bf9acdb11ccb7b0fc673d5f113b2909aff27e6f45f81138992021-04-19 11:31:101 day 23 hrs ago0x92cf3e35fc99350cb7395d86bb6b747bf9e9faba IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00066636
0xe49ba45513f2042a145529a8d425ecdd146aecf7064fed77965a7d4a59a0315481137902021-04-19 11:25:431 day 23 hrs ago0x8bb682f35918cddb54291e4ce90d0ee084e71852 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0xc81c34a7863043e9d8726eb12de9a26f3e254e642b81123396d5075868d96afa81136662021-04-19 11:19:311 day 23 hrs ago0x29c8f158f14f8e3165cdc6d382d47e02804db6b2 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0xa6888c7e5d01405e826dec28b51b544e31b28481753a4bad78118d7576323fe981136422021-04-19 11:18:191 day 23 hrs ago0x40434de554341fe2930e3efe624ce0428f222f93 IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00044424
0x124bb47de502f4449b89ddb65097d9aefb265fdb09fc78b69ee545bd73c522cd81122072021-04-19 10:06:342 days 34 mins ago0x56a2a358d687a40e3bfd2be28e69ab229e0b444e IN  0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB0.00130224
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0xd99007c8ab8397dc04710ed20b198a3c8ee8e156d1e38741582fbfe59e10516381688302021-04-21 9:17:431 hr 23 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0xd99007c8ab8397dc04710ed20b198a3c8ee8e156d1e38741582fbfe59e10516381688302021-04-21 9:17:431 hr 23 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0xd99007c8ab8397dc04710ed20b198a3c8ee8e156d1e38741582fbfe59e10516381688302021-04-21 9:17:431 hr 23 mins ago 0xe14f46ee1e23b68003bced6d85465455a309dfff 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f0 BNB
0xd99007c8ab8397dc04710ed20b198a3c8ee8e156d1e38741582fbfe59e10516381688302021-04-21 9:17:431 hr 23 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0xd99007c8ab8397dc04710ed20b198a3c8ee8e156d1e38741582fbfe59e10516381688302021-04-21 9:17:431 hr 23 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x6e1c5e80bf0459c083cc8faf596ef94545023571ddbb2889b10d4d198bb102c781688062021-04-21 9:16:311 hr 24 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x6e1c5e80bf0459c083cc8faf596ef94545023571ddbb2889b10d4d198bb102c781688062021-04-21 9:16:311 hr 24 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x6e1c5e80bf0459c083cc8faf596ef94545023571ddbb2889b10d4d198bb102c781688062021-04-21 9:16:311 hr 24 mins ago 0xe14f46ee1e23b68003bced6d85465455a309dfff 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f0 BNB
0x6e1c5e80bf0459c083cc8faf596ef94545023571ddbb2889b10d4d198bb102c781688062021-04-21 9:16:311 hr 24 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x6e1c5e80bf0459c083cc8faf596ef94545023571ddbb2889b10d4d198bb102c781688062021-04-21 9:16:311 hr 24 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0xa11f7f5ce319d407983ea16f6c36a76a30e9eed9d9ef5855b2bf288df1256d7a81636542021-04-21 4:58:555 hrs 41 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0xa11f7f5ce319d407983ea16f6c36a76a30e9eed9d9ef5855b2bf288df1256d7a81636542021-04-21 4:58:555 hrs 41 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0xa11f7f5ce319d407983ea16f6c36a76a30e9eed9d9ef5855b2bf288df1256d7a81636542021-04-21 4:58:555 hrs 41 mins ago 0xe14f46ee1e23b68003bced6d85465455a309dfff 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f0 BNB
0xa11f7f5ce319d407983ea16f6c36a76a30e9eed9d9ef5855b2bf288df1256d7a81636542021-04-21 4:58:555 hrs 41 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0xa11f7f5ce319d407983ea16f6c36a76a30e9eed9d9ef5855b2bf288df1256d7a81636542021-04-21 4:58:555 hrs 41 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x57b3416af34c02fb172fb3ed3a0383e5bbd1788e19b2dc07dd9a845b62f66ee081623262021-04-21 3:52:316 hrs 48 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x57b3416af34c02fb172fb3ed3a0383e5bbd1788e19b2dc07dd9a845b62f66ee081623262021-04-21 3:52:316 hrs 48 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x57b3416af34c02fb172fb3ed3a0383e5bbd1788e19b2dc07dd9a845b62f66ee081623262021-04-21 3:52:316 hrs 48 mins ago 0xe14f46ee1e23b68003bced6d85465455a309dfff 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f0 BNB
0x57b3416af34c02fb172fb3ed3a0383e5bbd1788e19b2dc07dd9a845b62f66ee081623262021-04-21 3:52:316 hrs 48 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x57b3416af34c02fb172fb3ed3a0383e5bbd1788e19b2dc07dd9a845b62f66ee081623262021-04-21 3:52:316 hrs 48 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x13e3c688db8c22ff25279e984aefdd0a3b26ab4edcff1387c309d8f99857217d81617242021-04-21 3:22:257 hrs 18 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x13e3c688db8c22ff25279e984aefdd0a3b26ab4edcff1387c309d8f99857217d81617242021-04-21 3:22:257 hrs 18 mins ago 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x13e3c688db8c22ff25279e984aefdd0a3b26ab4edcff1387c309d8f99857217d81617242021-04-21 3:22:257 hrs 18 mins ago 0xe14f46ee1e23b68003bced6d85465455a309dfff 0x62b49bc3bf252a5db26d88ccc7e61119e3179b4f0 BNB
0x13e3c688db8c22ff25279e984aefdd0a3b26ab4edcff1387c309d8f99857217d81617242021-04-21 3:22:257 hrs 18 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
0x13e3c688db8c22ff25279e984aefdd0a3b26ab4edcff1387c309d8f99857217d81617242021-04-21 3:22:257 hrs 18 mins ago 0x3239bf99d4d1f7ca2ddada64e0345053bfb45655 0xe14f46ee1e23b68003bced6d85465455a309dfff0 BNB
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Contract Source Code Verified (Similar Match)
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xFd0004f20bDF57f39c6999e7af02131b8402F4c2

Contract Name:
USDG

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 9 : USDG.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "./interfaces/IUSDG.sol";
import "./YieldToken.sol";

contract USDG is YieldToken, IUSDG {

    mapping (address => bool) public vaults;

    modifier onlyVault() {
        require(vaults[msg.sender], "USDG: forbidden");
        _;
    }

    constructor(address _vault) public YieldToken("USD Gambit", "USDG", 0) {
        vaults[_vault] = true;
    }

    function addVault(address _vault) external onlyGov {
        vaults[_vault] = true;
    }

    function removeVault(address _vault) external onlyGov {
        vaults[_vault] = false;
    }

    function mint(address _account, uint256 _amount) external override onlyVault {
        _mint(_account, _amount);
    }

    function burn(address _account, uint256 _amount) external override onlyVault {
        _burn(_account, _amount);
    }
}

File 2 of 9 : IUSDG.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

interface IUSDG {
    function mint(address _account, uint256 _amount) external;
    function burn(address _account, uint256 _amount) external;
}

File 3 of 9 : YieldToken.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "../libraries/math/SafeMath.sol";
import "../libraries/token/IERC20.sol";
import "../libraries/token/SafeERC20.sol";

import "./interfaces/IYieldTracker.sol";
import "./interfaces/IYieldToken.sol";

contract YieldToken is IERC20, IYieldToken {
    using SafeMath for uint256;
    using SafeERC20 for IERC20;

    string public name;
    string public symbol;
    uint8 public constant decimals = 18;

    uint256 public override totalSupply;
    uint256 public nonStakingSupply;

    address public gov;

    mapping (address => uint256) public balances;
    mapping (address => mapping (address => uint256)) public allowances;

    address[] public yieldTrackers;
    mapping (address => bool) public nonStakingAccounts;

    modifier onlyGov() {
        require(msg.sender == gov, "YieldToken: forbidden");
        _;
    }

    constructor(string memory _name, string memory _symbol, uint256 _initialSupply) public {
        name = _name;
        symbol = _symbol;
        gov = msg.sender;
        _mint(msg.sender, _initialSupply);
    }

    function setGov(address _gov) external onlyGov {
        gov = _gov;
    }

    function setInfo(string memory _name, string memory _symbol) external onlyGov {
        name = _name;
        symbol = _symbol;
    }

    function addNonStakingAccount(address _account) external onlyGov {
        require(!nonStakingAccounts[_account], "YieldToken: _account already marked");
        nonStakingAccounts[_account] = true;
        nonStakingSupply = nonStakingSupply.add(balances[_account]);
    }

    function removeNonStakingAccount(address _account) external onlyGov {
        require(nonStakingAccounts[_account], "YieldToken: _account not marked");
        nonStakingAccounts[_account] = false;
        nonStakingSupply = nonStakingSupply.sub(balances[_account]);
    }

    // to help users who accidentally send their tokens to this contract
    function withdrawToken(address _token, address _account, uint256 _amount) external onlyGov {
        IERC20(_token).safeTransfer(_account, _amount);
    }

    function setYieldTrackers(address[] memory _yieldTrackers) external onlyGov {
        yieldTrackers = _yieldTrackers;
    }

    function recoverClaim(address _account, address _receiver) external onlyGov {
        for (uint256 i = 0; i < yieldTrackers.length; i++) {
            address yieldTracker = yieldTrackers[i];
            IYieldTracker(yieldTracker).claim(_account, _receiver);
        }
    }

    function claim(address _receiver) external {
        for (uint256 i = 0; i < yieldTrackers.length; i++) {
            address yieldTracker = yieldTrackers[i];
            IYieldTracker(yieldTracker).claim(msg.sender, _receiver);
        }
    }

    function totalStaked() external view override returns (uint256) {
        return totalSupply.sub(nonStakingSupply);
    }

    function balanceOf(address _account) external view override returns (uint256) {
        return balances[_account];
    }

    function stakedBalance(address _account) external view override returns (uint256) {
        if (nonStakingAccounts[_account]) {
            return 0;
        }
        return balances[_account];
    }

    function transfer(address _recipient, uint256 _amount) external override returns (bool) {
        _transfer(msg.sender, _recipient, _amount);
        return true;
    }

    function allowance(address _owner, address _spender) external view override returns (uint256) {
        return allowances[_owner][_spender];
    }

    function approve(address _spender, uint256 _amount) external override returns (bool) {
        _approve(msg.sender, _spender, _amount);
        return true;
    }

    function transferFrom(address _sender, address _recipient, uint256 _amount) external override returns (bool) {
        uint256 nextAllowance = allowances[_sender][msg.sender].sub(_amount, "YieldToken: transfer amount exceeds allowance");
        _approve(_sender, msg.sender, nextAllowance);
        _transfer(_sender, _recipient, _amount);
        return true;
    }

    function _mint(address _account, uint256 _amount) internal {
        require(_account != address(0), "YieldToken: mint to the zero address");

        _updateRewards(_account);

        totalSupply = totalSupply.add(_amount);
        balances[_account] = balances[_account].add(_amount);

        if (nonStakingAccounts[_account]) {
            nonStakingSupply = nonStakingSupply.add(_amount);
        }

        emit Transfer(address(0), _account, _amount);
    }

    function _burn(address _account, uint256 _amount) internal {
        require(_account != address(0), "YieldToken: burn from the zero address");

        _updateRewards(_account);

        totalSupply = totalSupply.sub(_amount);
        balances[_account] = balances[_account].sub(_amount);

        if (nonStakingAccounts[_account]) {
            nonStakingSupply = nonStakingSupply.sub(_amount);
        }

        emit Transfer(_account, address(0), _amount);
    }

    function _transfer(address _sender, address _recipient, uint256 _amount) private {
        require(_sender != address(0), "YieldToken: transfer from the zero address");
        require(_recipient != address(0), "YieldToken: transfer to the zero address");

        _updateRewards(_sender);
        _updateRewards(_recipient);

        balances[_sender] = balances[_sender].sub(_amount, "YieldToken: transfer amount exceeds balance");
        balances[_recipient] = balances[_recipient].add(_amount);

        if (nonStakingAccounts[_sender]) {
            nonStakingSupply = nonStakingSupply.sub(_amount);
        }
        if (nonStakingAccounts[_recipient]) {
            nonStakingSupply = nonStakingSupply.add(_amount);
        }

        emit Transfer(_sender, _recipient,_amount);
    }

    function _approve(address _owner, address _spender, uint256 _amount) private {
        require(_owner != address(0), "YieldToken: approve from the zero address");
        require(_spender != address(0), "YieldToken: approve to the zero address");

        allowances[_owner][_spender] = _amount;

        emit Approval(_owner, _spender, _amount);
    }

    function _updateRewards(address _account) private {
        for (uint256 i = 0; i < yieldTrackers.length; i++) {
            address yieldTracker = yieldTrackers[i];
            IYieldTracker(yieldTracker).updateRewards(_account);
        }
    }
}

File 4 of 9 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

/**
 * @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, 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) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * 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);
        uint256 c = a - b;

        return c;
    }

    /**
     * @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) {
        // 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 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts 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) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message 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, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts 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) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message 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, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

File 5 of 9 : IERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

/**
 * @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 6 of 9 : SafeERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

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 9 : IYieldTracker.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

interface IYieldTracker {
    function claim(address _account, address _receiver) external returns (uint256);
    function updateRewards(address _account) external;
}

File 8 of 9 : IYieldToken.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

interface IYieldToken {
    function totalStaked() external view returns (uint256);
    function stakedBalance(address _account) external view returns (uint256);
}

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

pragma solidity ^0.6.2;

/**
 * @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 v3.3._
     */
    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 v3.3._
     */
    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);
            }
        }
    }
}

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

Contract ABI

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ype":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_recipient","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_sender","type":"address"},{"internalType":"address","name":"_recipient","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"vaults","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"_account","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdrawToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"yieldTrackers","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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