Contract 0xDD7e8f8047D78bB103FAb4bAc1259Da207Da3861

Contract Overview

Balance:
0 Ether
Txn Hash
Method
Block
From
To
Value
0xcd303127a397d399db89dfa411e4f0051626a65a0a057d43b88a5052ba0ce8cbBurn113837592021-11-08 3:04:27276 days 15 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00006844 1.‍5
0x161636c70a1fa8c7a15066d7e8086352c43bcc6004f8ec9865bc33af6cd2cf15Burn113837182021-11-08 2:58:21276 days 15 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00007564 1.‍5
0x613f2a27eae69e3b81c55d310f193d91ebefb366c70d40c8876089b9a80e132aBurn112019772021-10-10 16:11:02305 days 2 hrs ago0x177cd2185e6be8e68a4cafbf5d5db0b5c0ce87e7 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍000104462.‍7002469
0x70a9c70502fde108e5672cc41c98e31d011e1c5fc404cd4341d60b16400a242aBurn111301472021-09-29 6:50:43316 days 11 hrs ago0x9b1060dc6a133a45e4ae46808a0e2a1494ea580d IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009132 2.‍00000001
0xbfdc03ad56f1bf96e6d93b3ae45ccb55ca2db669af913e34200ccd7346b54abdBurn111301122021-09-29 6:43:00316 days 11 hrs ago0x9b1060dc6a133a45e4ae46808a0e2a1494ea580d IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00006849 1.‍50000001
0x22217eb1107238afa073ba58dc55bce9330586a4a118cc2f92efeaaa88c807dfBurn111299822021-09-29 6:15:18316 days 12 hrs ago0x9b1060dc6a133a45e4ae46808a0e2a1494ea580d IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009132 2
0x5b610f44ff9c66c62bba9bfbf157db8af6f57bb74419950048fad029aed807b7Burn111141192021-09-27 2:43:25318 days 15 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00006847 1.‍5
0x9f6dbe0583fd77f6aa90f9ba314ac90b89aae5149e9aec9d3b4e4bb842ca4594Burn108269082021-08-13 6:33:15363 days 11 hrs ago0x61493ef0c5130e86c0bc73d5283688dc165c2185 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍0045651100
0xa558066f56df9cbb602e44f97e7f8391f6430f26bba4faf2fb9198a405ad4146Burn107646302021-08-03 8:52:38373 days 9 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00010091.‍99999996
0xf523ae613149ea74bf19d48c0d724a5664e9eb2e0235b77c79a7ab5e7e00b33bBurn107642502021-08-03 7:25:02373 days 11 hrs ago0x61493ef0c5130e86c0bc73d5283688dc165c2185 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍0050463100
0x7708442de56c276ac66a2608df28f3c1af070a6538c7c03ddb07e6b4bde2f94bBurn107641882021-08-03 7:12:05373 days 11 hrs ago0x61493ef0c5130e86c0bc73d5283688dc165c2185 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00010091.‍99999999
0x2ca1e97126a29a8a2e06238a1239a0c2e42e6de8dfc5c1f9ff66033e7a2746e6Burn107641412021-08-03 7:02:02373 days 11 hrs ago0x61493ef0c5130e86c0bc73d5283688dc165c2185 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00010091.‍99999999
0x7b310130214cfa0a5a62ab1f5481eac8e492e286ce9a3cbcbca7b78eea3a4f8eBurn107630102021-08-03 3:14:34373 days 15 hrs ago0x20b0fbee6910d49316aeb27c5fbb31db69718a28 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009131.‍99999999
0x0778ee5fc045d785d5a4157ea3f2f56a5c5021326dff3bd319e8e645a557e04eBurn107629972021-08-03 3:11:14373 days 15 hrs ago0x20b0fbee6910d49316aeb27c5fbb31db69718a28 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009131.‍99999999
0xbe7cb1bc9b733066b2c5c73252e42a5c90a93579b7d30fcb4257e1f389ceae75Burn107580832021-08-02 12:37:42374 days 5 hrs ago0x91d56c55d809a7ccbb08c2a565662630819cb570 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009132
0x407c4c6b62f638c5cfa684945277979259c22a541da76f6eb0685f5159d3194aBurn107579322021-08-02 12:03:07374 days 6 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009131.‍99999999
0x36f18b76f7ba5bbec5b6804ffa2e5fad19b6a151a47a272f46f2742e301fb3f4Burn107578742021-08-02 11:52:44374 days 6 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009132
0x706366bb2ad78fd22f2ada509ce242e3a977c7d37a0bfd30fd9b789299f2e188Burn107578692021-08-02 11:51:46374 days 6 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00010092
0x3f70694bea0ed93f4573b893b39604ac3aa472c723a99e69081fa39e7d599ba5Burn107570182021-08-02 9:13:28374 days 9 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009131.‍99999998
0x79a0a5e0f76f708898353d3bd204cf9c62b6f140fa0702d790085ee1bdcd9c1fBurn107569162021-08-02 8:52:29374 days 9 hrs ago0x61493ef0c5130e86c0bc73d5283688dc165c2185 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009131.‍99999998
0xae9044c4d356546ee6734bb5411c221d33daee957d124167a1b96d61c138ff91Burn107568662021-08-02 8:44:14374 days 9 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009131.‍99999998
0xd974649cfb588b2debe9cbd462949b6c6003ea8a4c78bf41c597342860c47513Burn107568062021-08-02 8:31:51374 days 10 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍000160693.‍52000001
0x0d590c71224f49883f62ff7e54316bc90ace68eb208bb24a9a47f5f0e58ecbdaBurn107567842021-08-02 8:24:02374 days 10 hrs ago0xca323b96dccd926e321cd8754b5d848cf93db636 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009131.‍99999998
0x210e4bc932c2cfef05b3f5b94bbf40e235b8ea352d04793025694046566a27fdBurn107564312021-08-02 6:46:24374 days 11 hrs ago0x61493ef0c5130e86c0bc73d5283688dc165c2185 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍0045651100
0x24ac906c45276c1a1e314cd7e86e35f3513d0a6305549aadaa94d07fe68073fdBurn107563422021-08-02 6:25:05374 days 12 hrs ago0x61493ef0c5130e86c0bc73d5283688dc165c2185 IN  0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether0.‍00009131.‍99999999
[ Download CSV Export 
Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x5eaed37d74838cca6663f40314edea686b7dad6c7f03702d2993aab4fec095cb118059302022-01-13 6:17:57210 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0x5eaed37d74838cca6663f40314edea686b7dad6c7f03702d2993aab4fec095cb118059302022-01-13 6:17:57210 days 12 hrs ago 0x5dfebafdd0079cd6d32415bd2507b842812b8a0f 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0x46a5070f9b61c14fa30751bb655780b90e38d165dacffb07665a2031d8472edd118003652022-01-12 9:27:44211 days 9 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0x46a5070f9b61c14fa30751bb655780b90e38d165dacffb07665a2031d8472edd118003652022-01-12 9:27:44211 days 9 hrs ago 0x0f49d26b45d0a9880431d33eaf7cccb1ebd67961 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0x08d8729bd2b5da9ff961c108d4004449dd7f8986425c7e45c4c5083fb453918a118002702022-01-12 9:08:42211 days 9 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0x08d8729bd2b5da9ff961c108d4004449dd7f8986425c7e45c4c5083fb453918a118002702022-01-12 9:08:42211 days 9 hrs ago 0x5dfebafdd0079cd6d32415bd2507b842812b8a0f 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0xcf2043ed3bfcf8a2add068e2c91e698f3397a821dc62f33afccb0cbfc12e0aa9117994202022-01-12 6:02:35211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0xcf2043ed3bfcf8a2add068e2c91e698f3397a821dc62f33afccb0cbfc12e0aa9117994202022-01-12 6:02:35211 days 12 hrs ago 0x5dfebafdd0079cd6d32415bd2507b842812b8a0f 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0x27df7b5e84b3dec41891360d9ac932a11bd41845e59ddf1c5b17a00a1df67b81117994092022-01-12 5:59:17211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0x27df7b5e84b3dec41891360d9ac932a11bd41845e59ddf1c5b17a00a1df67b81117994092022-01-12 5:59:17211 days 12 hrs ago 0x0f49d26b45d0a9880431d33eaf7cccb1ebd67961 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0x7d0192b7769c5df998bae32ee925beab9ffe955a2a720ba34562780d9c13997f117993982022-01-12 5:57:07211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0x7d0192b7769c5df998bae32ee925beab9ffe955a2a720ba34562780d9c13997f117993982022-01-12 5:57:07211 days 12 hrs ago 0x5dfebafdd0079cd6d32415bd2507b842812b8a0f 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0x664dd5bf3285f4928254bc2d465f11b6b07ed6fa469ffb0b2fdd3c41d5152f99117993932022-01-12 5:56:31211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0x664dd5bf3285f4928254bc2d465f11b6b07ed6fa469ffb0b2fdd3c41d5152f99117993932022-01-12 5:56:31211 days 12 hrs ago 0x0f49d26b45d0a9880431d33eaf7cccb1ebd67961 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0xd8a5eb7d12c1b9cd5ea842d6c83a41e5f4e4fc6e23e98279f4b2736175777340117993822022-01-12 5:54:51211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0xd8a5eb7d12c1b9cd5ea842d6c83a41e5f4e4fc6e23e98279f4b2736175777340117993822022-01-12 5:54:51211 days 12 hrs ago 0x5dfebafdd0079cd6d32415bd2507b842812b8a0f 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0x145f4accf6247dc2f033b5c711dd134b51880e2f840b0e531d5ddcaddbe5eabf117993802022-01-12 5:54:22211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0x145f4accf6247dc2f033b5c711dd134b51880e2f840b0e531d5ddcaddbe5eabf117993802022-01-12 5:54:22211 days 12 hrs ago 0x0f49d26b45d0a9880431d33eaf7cccb1ebd67961 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0xe17a644d338e14235cf588aa360e51eb4a120fcf27c74a793ecfdb42ede6579b117993772022-01-12 5:52:48211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0xe17a644d338e14235cf588aa360e51eb4a120fcf27c74a793ecfdb42ede6579b117993772022-01-12 5:52:48211 days 12 hrs ago 0x0f49d26b45d0a9880431d33eaf7cccb1ebd67961 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0x8bb284dd92e5fbafbdbf7aee7a00170264bce09af824a4ddbef34e083f97d13c117993722022-01-12 5:50:48211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0x8bb284dd92e5fbafbdbf7aee7a00170264bce09af824a4ddbef34e083f97d13c117993722022-01-12 5:50:48211 days 12 hrs ago 0x5dfebafdd0079cd6d32415bd2507b842812b8a0f 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0x0836249fb8c59fab99c6fbe2592de51687e3bdf5f00fd361cddd29e06b1cc17d117993682022-01-12 5:50:19211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
0x0836249fb8c59fab99c6fbe2592de51687e3bdf5f00fd361cddd29e06b1cc17d117993682022-01-12 5:50:19211 days 12 hrs ago 0x0f49d26b45d0a9880431d33eaf7cccb1ebd67961 0xdd7e8f8047d78bb103fab4bac1259da207da38610 Ether
0xfc9c416d6ca0cf1681d633bc2a6c600dd2657a520f8a8acdccf3727a845f1ef1117993452022-01-12 5:46:30211 days 12 hrs ago 0xdd7e8f8047d78bb103fab4bac1259da207da3861 0xa60100d5e12e9f83c1b04997314cf11685a618ff0 Ether
[ Download CSV Export 
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
bETH

Compiler Version
v0.6.2+commit.bacdbe57

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion
File 1 of 10 : ShuttleVault.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0;

import {Context} from "@openzeppelin/contracts/utils/Context.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";

import {IWrappedToken} from "./WrappedToken.sol";

contract ShuttleVault is IWrappedToken, Context, Ownable {
    using SafeERC20 for IERC20;

    IERC20 public token;

    constructor(address _token) public {
        token = IERC20(_token);
    }

    function burn(uint256 _amount, bytes32 _to) public override {
        token.safeTransferFrom(_msgSender(), address(this), _amount);

        emit Burn(_msgSender(), _to, _amount);
    }

    function mint(address _account, uint256 _amount) public override onlyOwner {
        token.safeTransfer(_account, _amount);
    }
}

File 2 of 10 : WrappedToken.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

interface IWrappedToken {
    event Burn(address indexed _sender, bytes32 indexed _to, uint256 _amount);

    function burn(uint256 _amount, bytes32 _to) external;

    function mint(address _account, uint256 _amount) external;
}

contract WrappedToken is IWrappedToken, ERC20, Ownable {
    constructor(string memory name, string memory symbol)
        public
        ERC20(name, symbol)
    {}

    function burn(uint256 amount, bytes32 to) public override {
        _burn(_msgSender(), amount);

        emit Burn(_msgSender(), to, amount);
    }

    function mint(address account, uint256 amount) public override onlyOwner {
        _mint(account, amount);
    }
}

File 3 of 10 : bETH.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0;

import "./ShuttleVault.sol";

contract bETH is ShuttleVault {
    constructor(address _token) public ShuttleVault(_token) {}
}

File 4 of 10 : 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 5 of 10 : 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 6 of 10 : 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 7 of 10 : 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 8 of 10 : 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 9 of 10 : 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 10 : 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
{
  "remappings": [],
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_sender","type":"address"},{"indexed":true,"internalType":"bytes32","name":"_to","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes32","name":"_to","type":"bytes32"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000a60100d5e12e9f83c1b04997314cf11685a618ff

-----Decoded View---------------
Arg [0] : _token (address): 0xa60100d5e12e9f83c1b04997314cf11685a618ff

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000a60100d5e12e9f83c1b04997314cf11685a618ff


Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
Loading

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.