Contract 0x2ffa85f655752fB2aCB210287c60b9ef335f5b6E

 
Txn Hash Method
Block
From
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Value
0x318e0c4770e8241d63978909a1493da55ec9173897d5e197055cd3f140d24b28Margin Trade126787952021-06-21 16:49:111 day 3 hrs ago0x68d2ec28e3717edaf8ba10e33d3f3f6e12dadf96 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.10207420551
0x434847fbd919f09431f3afc514bab2ef7fe0a2084558d60c48260eaf33424969Margin Trade126298912021-06-14 2:22:118 days 18 hrs ago0x9cd08e1d549902bb537b266cf90132c3091eed30 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.02263864911
0xfac342ce876622130bb1cb92b22ece189123b6b1858b4d78daed634faa185352Margin Trade126287102021-06-13 22:04:328 days 22 hrs ago0x5df4793bed5d5f8bb17b83afcc7e21e4feaaf369 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.025713161611.2
0x65a948d2fb121306630aae3d69db0031599fa3c2456e18f2e0961636609c6fe2Margin Trade126171782021-06-12 2:55:2910 days 17 hrs ago0x9cd08e1d549902bb537b266cf90132c3091eed30 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.048480399919.9
0x30f3d513e80056b2f19cdf0d1a27b5e3bbd5c84e88bee32925b0d79f4a6d581bBurn126083452021-06-10 18:15:4912 days 2 hrs ago0xaf519e476c65947d63a590862bbad3c78aab35b7 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.0010382110
0x5526f3a02e3e8cbb1ffe7d8d35621c5730d149d4426189fb708bce44aa124804Margin Trade Wit...126025842021-06-09 20:56:5112 days 23 hrs ago0x693616d95a0a6642d01b0a36c7782b5d3031d413 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.0210448816
0xbd296efdbf36731b7621dff1ece2701b7efb19a27e451d4cd0f3369b04030c92Burn125938262021-06-08 12:21:2114 days 8 hrs ago0x4e8b4273631c7c0fdc6d9187b2afb614dfb1079e IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.00181381515
0xc9a903408200633773609445db7d1e827d9473669126db680c667f52c88fed29Burn125937472021-06-08 12:00:3914 days 8 hrs ago0x4e8b4273631c7c0fdc6d9187b2afb614dfb1079e IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.00249031515
0x3099a9633b6105fae2d9ae6cd2aac58be92bdeddb9f0320055e93d99165eb228Mint125916952021-06-08 4:18:4114 days 16 hrs ago0xaf519e476c65947d63a590862bbad3c78aab35b7 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.0030954420
0x8b76eb1d14269e96d631e97d4dde3133ea19134e356a7ed376dc789067997c73Mint125910082021-06-08 1:44:0114 days 18 hrs ago0xaf519e476c65947d63a590862bbad3c78aab35b7 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.001699739110.1
0xf9cdbe1f29a4b27796bd8d02f896f776a2ee5ec56f780780143c8ab45010bfc4Mint125890122021-06-07 18:41:1215 days 1 hr ago0x4e8b4273631c7c0fdc6d9187b2afb614dfb1079e IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.00448838829
0x7c56b8f1e59fb7e1fd654215f62b792e3b766e96cf5c6e12016e77ed3ffa12f6Margin Trade125862042021-06-07 7:55:4015 days 12 hrs ago0x10b6a36e023074534f20fb6a94244ca2a9d97236 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e30 Ether0.01937611212
0x0faa0e2a82a126519e83d89cc6a82538744853048f7e6d02e190d182308e8912Mint125777952021-06-06 0:52:4016 days 19 hrs ago0x4e8b4273631c7c0fdc6d9187b2afb614dfb1079e IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.00420727525
0xb475cfe2c3ce037ad76a31af311d0b21cb44997cdd37277978046a8f00f9ab09Mint125758502021-06-05 17:45:5117 days 2 hrs ago0x7afdd1ba1145e583fba788cc21da686e736a311c IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.002120315412.6
0xbb0066f222b97695fada578a44b2353bd804c0e8c3520eda08ab32032dab33fcMargin Trade125739912021-06-05 10:38:1717 days 9 hrs ago0x10b6a36e023074534f20fb6a94244ca2a9d97236 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e25 Ether0.02178742813
0xf52a3ed741288aee60703650cc3e54a9557f90c425137d229c780411e0b4b618Burn125718482021-06-05 2:32:5517 days 17 hrs ago0xd3675438ff47c7812ba5ab17ae1e59533d83578d IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.0023204220
0x2de3dc44d1b911513b3ef3dc78f9af97282c66ed8921bbad6e4a4484b6debf05Burn125598832021-06-03 6:19:1819 days 14 hrs ago0x6f74e3bb85731317a6bdc1b19b3f1a98d1e1add4 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.0020247704115.21
0x1f0b4664dc5a721cbb13ece3c8287359a24ea0b07cd9ae509b59888d02c450aaBurn125524122021-06-02 2:46:3120 days 17 hrs ago0x9cd08e1d549902bb537b266cf90132c3091eed30 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.002649107919.9
0x6404d8150bdc59cba6d42f20529c7d70a560b843cacd12f1ecf546542c7ff938Borrow125421932021-05-31 12:44:0222 days 7 hrs ago0x6be99e78ce0926ec872e3e3f1e1402575d74425d IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.007093559218.2
0x7e827c5a4116b6e6df337a6001f78af391bf431f3b7a1aabdca421e34b3d85f4Margin Trade125292802021-05-29 12:31:5224 days 7 hrs ago0x9cd08e1d549902bb537b266cf90132c3091eed30 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.03833374217
0xf4ff6d5a589428a71d3a2be333df35155ebeaeb1ade798024860087c785e7177Margin Trade125256262021-05-28 22:54:1324 days 21 hrs ago0x9cd08e1d549902bb537b266cf90132c3091eed30 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.052459654423.2
0x38bfd497675a4d112bef6afa6740c0e313f46eab411aab606cfd4b4d7f3d8c30Mint125255992021-05-28 22:49:5224 days 21 hrs ago0x9cd08e1d549902bb537b266cf90132c3091eed30 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.00454385727
0xa9c96d0a5abdb4dceb2eef1a6bc7053d0bf8813340c406601b46b4efe3ce62a4Margin Trade125255752021-05-28 22:44:1624 days 21 hrs ago0x9cd08e1d549902bb537b266cf90132c3091eed30 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.05670585927
0xd57b46b238131ef9b1b1edfb6ac61bb2e4d3eabf3f3c650d3941b5486dc63c07Burn125104832021-05-26 14:30:1427 days 6 hrs ago0xd14e31cc7a0bd4040d3bf58fbd45db5e82f5077f IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.00447407737
0x051bad44c3c29f97a29a1c2c7d6412425379d8aba6938c146bbb14269561d89fBurn123719132021-05-05 3:50:2948 days 16 hrs ago0x88bd9282729510c0da4fa66f815f5db609ac4c56 IN  0x2ffa85f655752fb2acb210287c60b9ef335f5b6e0 Ether0.00986178585
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Latest 25 internal transaction
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0x7c56b8f1e59fb7e1fd654215f62b792e3b766e96cf5c6e12016e77ed3ffa12f6125862042021-06-07 7:55:4015 days 12 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether30 Ether
0xbb0066f222b97695fada578a44b2353bd804c0e8c3520eda08ab32032dab33fc125739912021-06-05 10:38:1717 days 9 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether25 Ether
0xed2dea9be71b4b28b0f315180fb3b8b47575e5f89c4d53986af92df08422d515121729782021-04-04 12:03:2479 days 8 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether44.904923438348585078 Ether
0x162006ed16ac05a6245eda5a5b3ef433fb1307765f586de2d9706148b444883d121680882021-04-03 17:56:2780 days 2 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether1.869144650057472368 Ether
0x086cf0a1f33cd34a318d851efb17b6c59c898640d955fb7d352368dbc0ee6078120922442021-03-23 1:53:4491 days 18 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether2.671906199306458262 Ether
0xa7535addb791a888644a614f476583a90c4b6a4a8a8c1b19143bf9661c72ca57119364122021-02-27 1:32:27115 days 18 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether2 Ether
0xa4be044c4395e1cd79502569dacc88cd538ac1c9db821ce179c68560d07e8936119061592021-02-22 10:03:09120 days 10 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether10 Ether
0x91e1c5d96120aab19822a5f5fc3062fdea2d51973e55aa06b93238a3d9086ae1118780152021-02-18 2:03:09124 days 18 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether5 Ether
0x30fc814b795fdacb52cbab65f7fa44c08fbaa287f4ea6355edfe12c0bd42e0c7118779902021-02-18 1:58:16124 days 18 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether5 Ether
0x2164387f42530d708daa94f92df4ea742f002d9dc7133378c1e3c3d923ab0741118622322021-02-15 15:42:55127 days 4 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether64.998465427157262302 Ether
0x0af91e0dba2686fa34a167ffcc77fc08a95caf69e7ed8d9f3782e4b3f561a40f118385732021-02-12 0:28:19130 days 20 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether10 Ether
0x5d48c8b03ca3e1dd317b9ecb095a6aa71320645075148c6ab3b53cfc9879a89c118192712021-02-09 1:22:15133 days 19 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether4.5 Ether
0x95c619b62d2b2843279f99890cb938927333a27f6ccc4284955161cc9bad8945117592342021-01-30 19:48:42143 days 42 mins ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether2 Ether
0x52b28a1d49e5ee3bc4eb51fa0cfd73eaad845a4d21717f11f062b1454ba2a434117586172021-01-30 17:27:09143 days 3 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether11.5 Ether
0x0c8932e80527c24861e3f4b4aa665b706e73a1c87a2b338e2cd2eb28246cc696117327732021-01-26 17:40:56147 days 2 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether2 Ether
0x49c707f5d4e2e1f29ddd0625aa93e1c877fbe966eb8a7198152ba7d6d6c55d7d117222332021-01-25 2:52:12148 days 17 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether2.5 Ether
0x1cae7815c816ea282491ebf8ae81dab6ae97f9626a101f52fa3de786a538ebba117117782021-01-23 12:20:35150 days 8 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether2.148036482142237289 Ether
0xa3fa73f307387cdd8a294129b0937d66415371b23981ddc8c257e8b8da81a085116537792021-01-14 14:36:55159 days 5 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether8 Ether
0x3963e23612976fe28591545f175709cf44786753175bc39834772d457e47a28f116087822021-01-07 16:56:58166 days 3 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether5 Ether
0x1e96bb1395353ba84702ac9af3d26520b38aebaa9ca4c5ae56e895a327c3a47d115965112021-01-05 19:43:40168 days 47 mins ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether10 Ether
0xbfc3c6060723ee54eb53926117a76e9c4f569c414a901b2421b76edd1d0e1155115901322021-01-04 20:22:21169 days 8 mins ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether10.337220556043520845 Ether
0x0246ab0cb648688688a46e210cfb402bd3587f9a302c7bf524875ed70b22c8ad115827762021-01-03 17:08:30170 days 3 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether10 Ether
0x28e776eeddf84b3c034c08dda03a410dd853061cc4309c70e43dc07bbe82f06a114025022020-12-07 0:47:58197 days 19 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether3.207793788709838892 Ether
0x91cd897b4bda3273aa629bf0d0475d09bfac24591e4e5e830912fe8164cc2c11113420462020-11-27 18:12:04207 days 2 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether7.167221068955067739 Ether
0x43e06d0278320f4b110f5a9e04e6496d1d56eb57e80de50041d41e4e8ace533a113220952020-11-24 16:26:48210 days 4 hrs ago 0x2ffa85f655752fb2acb210287c60b9ef335f5b6e Wrapped Ether3.102319203395026968 Ether
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Contract Source Code Verified (Similar Match)
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x32e4c68b3a4a813b710595aeba7f6b7604ab9c15

Contract Name:
LoanToken

Compiler Version
v0.5.17+commit.d19bba13

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, Apache-2.0 license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2020-09-03
*/

/**
 * Copyright 2017-2020, bZeroX, LLC <https://bzx.network/>. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0.
 */

pragma solidity 0.5.17;


interface IWeth {
    function deposit() external payable;
    function withdraw(uint256 wad) external;
}

contract IERC20 {
    string public name;
    uint8 public decimals;
    string public symbol;
    function totalSupply() public view returns (uint256);
    function balanceOf(address _who) public view returns (uint256);
    function allowance(address _owner, address _spender) public view returns (uint256);
    function approve(address _spender, uint256 _value) public returns (bool);
    function transfer(address _to, uint256 _value) public returns (bool);
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

contract IWethERC20 is IWeth, IERC20 {}

/**
 * @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.
     *
     * _Available since v2.4.0._
     */
    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.
     *
     * _Available since v2.4.0._
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        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 Integer division of two numbers, rounding up and truncating the quotient
    */
    function divCeil(uint256 a, uint256 b) internal pure returns (uint256) {
        return divCeil(a, b, "SafeMath: division by zero");
    }

    /**
    * @dev Integer division of two numbers, rounding up and truncating the quotient
    */
    function divCeil(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b != 0, errorMessage);

        if (a == 0) {
            return 0;
        }
        uint256 c = ((a - 1) / b) + 1;

        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.
     *
     * _Available since v2.4.0._
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }

    function min256(uint256 _a, uint256 _b) internal pure returns (uint256) {
        return _a < _b ? _a : _b;
    }
}

/**
 * @title SignedSafeMath
 * @dev Signed math operations with safety checks that revert on error.
 */
library SignedSafeMath {
    int256 constant private _INT256_MIN = -2**255;

        /**
     * @dev Returns the multiplication of two signed integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(int256 a, int256 b) internal pure returns (int256) {
        // 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;
        }

        require(!(a == -1 && b == _INT256_MIN), "SignedSafeMath: multiplication overflow");

        int256 c = a * b;
        require(c / a == b, "SignedSafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two signed 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(int256 a, int256 b) internal pure returns (int256) {
        require(b != 0, "SignedSafeMath: division by zero");
        require(!(b == -1 && a == _INT256_MIN), "SignedSafeMath: division overflow");

        int256 c = a / b;

        return c;
    }

    /**
     * @dev Returns the subtraction of two signed integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a - b;
        require((b >= 0 && c <= a) || (b < 0 && c > a), "SignedSafeMath: subtraction overflow");

        return c;
    }

    /**
     * @dev Returns the addition of two signed integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a + b;
        require((b >= 0 && c >= a) || (b < 0 && c < a), "SignedSafeMath: addition overflow");

        return c;
    }
}

/**
 * @title Helps contracts guard against reentrancy attacks.
 * @author Remco Bloemen <[email protected]π.com>, Eenae <[email protected]>
 * @dev If you mark a function `nonReentrant`, you should also
 * mark it `external`.
 */
contract ReentrancyGuard {

    /// @dev Constant for unlocked guard state - non-zero to prevent extra gas costs.
    /// See: https://github.com/OpenZeppelin/openzeppelin-solidity/issues/1056
    uint256 internal constant REENTRANCY_GUARD_FREE = 1;

    /// @dev Constant for locked guard state
    uint256 internal constant REENTRANCY_GUARD_LOCKED = 2;

    /**
    * @dev We use a single lock for the whole contract.
    */
    uint256 internal reentrancyLock = REENTRANCY_GUARD_FREE;

    /**
    * @dev Prevents a contract from calling itself, directly or indirectly.
    * If you mark a function `nonReentrant`, you should also
    * mark it `external`. Calling one `nonReentrant` function from
    * another is not supported. Instead, you can implement a
    * `private` function doing the actual work, and an `external`
    * wrapper marked as `nonReentrant`.
    */
    modifier nonReentrant() {
        require(reentrancyLock == REENTRANCY_GUARD_FREE, "nonReentrant");
        reentrancyLock = REENTRANCY_GUARD_LOCKED;
        _;
        reentrancyLock = REENTRANCY_GUARD_FREE;
    }
}

/**
 * @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) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @dev Converts an `address` into `address payable`. Note that this is
     * simply a type cast: the actual underlying value is not changed.
     *
     * _Available since v2.4.0._
     */
    function toPayable(address account) internal pure returns (address payable) {
        return address(uint160(account));
    }

    /**
     * @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].
     *
     * _Available since v2.4.0._
     */
    function sendValue(address recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

/*
 * @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.
 */
contract Context {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.
    constructor () internal { }
    // solhint-disable-previous-line no-empty-blocks

    function _msgSender() internal view returns (address payable) {
        return msg.sender;
    }

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

/**
 * @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.
 *
 * 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.
 */
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 returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(isOwner(), "unauthorized");
        _;
    }

    /**
     * @dev Returns true if the caller is the current owner.
     */
    function isOwner() public view returns (bool) {
        return _msgSender() == _owner;
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

contract Pausable {

    // keccak256("Pausable_FunctionPause")
    bytes32 internal constant Pausable_FunctionPause = 0xa7143c84d793a15503da6f19bf9119a2dac94448ca45d77c8bf08f57b2e91047;

    modifier pausable(bytes4 sig) {
        require(!_isPaused(sig), "unauthorized");
        _;
    }

    function _isPaused(
        bytes4 sig)
        internal
        view
        returns (bool isPaused)
    {
        bytes32 slot = keccak256(abi.encodePacked(sig, Pausable_FunctionPause));
        assembly {
            isPaused := sload(slot)
        }
    }
}

contract LoanTokenBase is ReentrancyGuard, Ownable, Pausable {

    uint256 internal constant WEI_PRECISION = 10**18;
    uint256 internal constant WEI_PERCENT_PRECISION = 10**20;

    int256 internal constant sWEI_PRECISION = 10**18;

    string public name;
    string public symbol;
    uint8 public decimals;

    // uint88 for tight packing -> 8 + 88 + 160 = 256
    uint88 internal lastSettleTime_;

    address public loanTokenAddress;

    uint256 public baseRate;
    uint256 public rateMultiplier;
    uint256 public lowUtilBaseRate;
    uint256 public lowUtilRateMultiplier;

    uint256 public targetLevel;
    uint256 public kinkLevel;
    uint256 public maxScaleRate;

    uint256 internal _flTotalAssetSupply;
    uint256 public checkpointSupply;
    uint256 public initialPrice;

    mapping (uint256 => bytes32) public loanParamsIds; // mapping of keccak256(collateralToken, isTorqueLoan) to loanParamsId
    mapping (address => uint256) internal checkpointPrices_; // price of token at last user checkpoint
}

contract AdvancedTokenStorage is LoanTokenBase {
    using SafeMath for uint256;

    event Transfer(
        address indexed from,
        address indexed to,
        uint256 value
    );

    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );

    event Mint(
        address indexed minter,
        uint256 tokenAmount,
        uint256 assetAmount,
        uint256 price
    );

    event Burn(
        address indexed burner,
        uint256 tokenAmount,
        uint256 assetAmount,
        uint256 price
    );

    mapping(address => uint256) internal balances;
    mapping (address => mapping (address => uint256)) internal allowed;
    uint256 internal totalSupply_;

    function totalSupply()
        public
        view
        returns (uint256)
    {
        return totalSupply_;
    }

    function balanceOf(
        address _owner)
        public
        view
        returns (uint256)
    {
        return balances[_owner];
    }

    function allowance(
        address _owner,
        address _spender)
        public
        view
        returns (uint256)
    {
        return allowed[_owner][_spender];
    }
}

contract LoanToken is AdvancedTokenStorage {

    address internal target_;

    constructor(
        address _newOwner,
        address _newTarget)
        public
    {
        transferOwnership(_newOwner);
        _setTarget(_newTarget);
    }

    function()
        external
        payable
    {
        if (gasleft() <= 2300) {
            return;
        }

        address target = target_;
        bytes memory data = msg.data;
        assembly {
            let result := delegatecall(gas, target, add(data, 0x20), mload(data), 0, 0)
            let size := returndatasize
            let ptr := mload(0x40)
            returndatacopy(ptr, 0, size)
            switch result
            case 0 { revert(ptr, size) }
            default { return(ptr, size) }
        }
    }

    function setTarget(
        address _newTarget)
        public
        onlyOwner
    {
        _setTarget(_newTarget);
    }

    function _setTarget(
        address _newTarget)
        internal
    {
        require(Address.isContract(_newTarget), "target not a contract");
        target_ = _newTarget;
    }
}

Contract Security Audit

Contract ABI

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se,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"targetLevel","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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Swarm Source

bzzr://8e159523001d7b30b1641290c62dffd797f6077e0bcbf6b86ce07051a8c0caad
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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