Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•    - function _msgSender()
•    - function _msgData()
• interface IERC20
•    - function totalSupply()
•    - function balanceOf(address account)
•    - function transfer(address recipient, ...
•    - function allowance(address owner, add ...
•    - function approve(address spender, uin ...
•    - function transferFrom(address sender, ...
• library SafeMath
•    - function add(uint256 a, uint256 b)
•    - function sub(uint256 a, uint256 b)
•    - function sub(uint256 a, uint256 b, st ...
•    - function mul(uint256 a, uint256 b)
•    - function div(uint256 a, uint256 b)
•    - function div(uint256 a, uint256 b, st ...
•    - function mod(uint256 a, uint256 b)
•    - function mod(uint256 a, uint256 b, st ...
• library Address
•    - function isContract(address account)
•    - function sendValue(address payable re ...
•    - function functionCall(address target, ...
•    - function functionCall(address target, ...
•    - function functionCallWithValue(addres ...
•    - function functionCallWithValue(addres ...
•    - function _functionCallWithValue(addre ...
•  contract ERC20 is Context, IERC20
•    - function name()
•    - function symbol()
•    - function decimals()
•    - function totalSupply()
•    - function balanceOf(address account)
•    - function transfer(address recipient, ...
•    - function allowance(address owner, add ...
•    - function approve(address spender, uin ...
•    - function transferFrom(address sender, ...
•    - function increaseAllowance(address sp ...
•    - function decreaseAllowance(address sp ...
•    - function _transfer(address sender, ad ...
•    - function _mint(address account, uint2 ...
•    - function _burn(address account, uint2 ...
•    - function _approve(address owner, addr ...
•    - function _setupDecimals(uint8 decimal ...
•    - function _beforeTokenTransfer(address ...
•    - function burn(uint256 amount)
•    - function burnFrom(address account, ui ...
•  contract Ownable is Context
•    - function owner()
•    - function renounceOwnership()
•    - function transferOwnership(address ne ...
•  contract Operator is Context, Owna ...
•    - function operator()
•    - function isOperator()
•    - function transferOperator(address new ...
•    - function _transferOperator(address ne ...
•  contract Cash is ERC20Burnable, Op ... *
•    - function mint(address recipient_, uin ...
•    - function burn(uint256 amount)
•    - function burnFrom(address account, ui ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2020-12-23
*/

// File: @openzeppelin/contracts/GSN/Context.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/*
 * @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;
    }
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



pragma solidity ^0.6.0;

/**
 * @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: @openzeppelin/contracts/math/SafeMath.sol



pragma solidity ^0.6.0;

/**
 * @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, 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: @openzeppelin/contracts/utils/Address.sol



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 in 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");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        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: @openzeppelin/contracts/token/ERC20/ERC20.sol



pragma solidity ^0.6.0;





/**
 * @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;
    using Address for address;

    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 returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view 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 returns (uint8) {
        return _decimals;
    }

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view 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 {
        _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: @openzeppelin/contracts/token/ERC20/ERC20Burnable.sol



pragma solidity ^0.6.0;



/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        uint256 decreasedAllowance = allowance(account, _msgSender()).sub(amount, "ERC20: burn amount exceeds allowance");

        _approve(account, _msgSender(), decreasedAllowance);
        _burn(account, amount);
    }
}

// File: @openzeppelin/contracts/access/Ownable.sol



pragma solidity ^0.6.0;

/**
 * @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.
 */
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(_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: contracts/owner/Operator.sol

pragma solidity ^0.6.0;



contract Operator is Context, Ownable {
    address private _operator;

    event OperatorTransferred(
        address indexed previousOperator,
        address indexed newOperator
    );

    constructor() internal {
        _operator = _msgSender();
        emit OperatorTransferred(address(0), _operator);
    }

    function operator() public view returns (address) {
        return _operator;
    }

    modifier onlyOperator() {
        require(
            _operator == msg.sender,
            'operator: caller is not the operator'
        );
        _;
    }

    function isOperator() public view returns (bool) {
        return _msgSender() == _operator;
    }

    function transferOperator(address newOperator_) public onlyOwner {
        _transferOperator(newOperator_);
    }

    function _transferOperator(address newOperator_) internal {
        require(
            newOperator_ != address(0),
            'operator: zero address given for new operator'
        );
        emit OperatorTransferred(address(0), newOperator_);
        _operator = newOperator_;
    }
}

// File: contracts/Cash.sol

pragma solidity ^0.6.0;



contract Cash is ERC20Burnable, Operator {
    /**
     * @notice Constructs the Basis Cash ERC-20 contract.
     */
    constructor() public ERC20('ONC', 'ONC') {
        // Mints 1 Basis Cash to contract creator for initial Uniswap oracle deployment.
        // Will be burned after oracle deployment
        _mint(msg.sender, 1 * 10**18);
    }

    //    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override {
    //        super._beforeTokenTransfer(from, to, amount);
    //        require(
    //            to != operator(),
    //            "basis.cash: operator as a recipient is not allowed"
    //        );
    //    }

    /**
     * @notice Operator mints basis cash to a recipient
     * @param recipient_ The address of recipient
     * @param amount_ The amount of basis cash to mint to
     * @return whether the process has been done
     */
    function mint(address recipient_, uint256 amount_)
        public
        onlyOperator
        returns (bool)
    {
        uint256 balanceBefore = balanceOf(recipient_);
        _mint(recipient_, amount_);
        uint256 balanceAfter = balanceOf(recipient_);

        return balanceAfter > balanceBefore;
    }

    function burn(uint256 amount) public override onlyOperator {
        super.burn(amount);
    }

    function burnFrom(address account, uint256 amount)
        public
        override
        onlyOperator
    {
        super.burnFrom(account, amount);
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOperator","type":"address"},{"indexed":true,"internalType":"address","name":"newOperator","type":"address"}],"name":"OperatorTransferred","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"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burnFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isOperator","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient_","type":"address"},{"internalType":"uint256","name":"amount_","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"operator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","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":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"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":"newOperator_","type":"address"}],"name":"transferOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

30997:1535:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;17436:83;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;19542:169;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;19542:169:0;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;18511:100;;;:::i;:::-;;;;;;;;;;;;;;;;20185:321;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;20185:321:0;;;;;;;;;;;;;;;;;:::i;30511:115::-;;;;;;;;;;;;;;;;-1:-1:-1;30511:115:0;-1:-1:-1;;;;;30511:115:0;;:::i;:::-;;18363:83;;;:::i;:::-;;;;;;;;;;;;;;;;;;;20915:218;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;20915:218:0;;;;;;;;:::i;31933:322::-;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;31933:322:0;;;;;;;;:::i;32263:96::-;;;;;;;;;;;;;;;;-1:-1:-1;32263:96:0;;:::i;30403:100::-;;;:::i;30138:85::-;;;:::i;:::-;;;;-1:-1:-1;;;;;30138:85:0;;;;;;;;;;;;;;18674:119;;;;;;;;;;;;;;;;-1:-1:-1;18674:119:0;-1:-1:-1;;;;;18674:119:0;;:::i;29179:148::-;;;:::i;32367:162::-;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;32367:162:0;;;;;;;;:::i;28537:79::-;;;:::i;17638:87::-;;;:::i;21636:269::-;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;21636:269:0;;;;;;;;:::i;19006:175::-;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;19006:175:0;;;;;;;;:::i;19244:151::-;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;19244:151:0;;;;;;;;;;:::i;29482:244::-;;;;;;;;;;;;;;;;-1:-1:-1;29482:244:0;-1:-1:-1;;;;;29482:244:0;;:::i;17436:83::-;17506:5;17499:12;;;;;;;;-1:-1:-1;;17499:12:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;17473:13;;17499:12;;17506:5;;17499:12;;17506:5;17499:12;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;17436:83;:::o;19542:169::-;19625:4;19642:39;19651:12;:10;:12::i;:::-;19665:7;19674:6;19642:8;:39::i;:::-;-1:-1:-1;19699:4:0;19542:169;;;;:::o;18511:100::-;18591:12;;18511:100;:::o;20185:321::-;20291:4;20308:36;20318:6;20326:9;20337:6;20308:9;:36::i;:::-;20355:121;20364:6;20372:12;:10;:12::i;:::-;20386:89;20424:6;20386:89;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;20386:19:0;;;;;;:11;:19;;;;;;20406:12;:10;:12::i;:::-;-1:-1:-1;;;;;20386:33:0;;;;;;;;;;;;-1:-1:-1;20386:33:0;;;:89;:37;:89::i;:::-;20355:8;:121::i;:::-;-1:-1:-1;20494:4:0;20185:321;;;;;:::o;30511:115::-;28759:12;:10;:12::i;:::-;28749:6;;;;;-1:-1:-1;;;;;28749:6:0;;;:22;;;28741:67;;;;;-1:-1:-1;;;28741:67:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30587:31:::1;30605:12;30587:17;:31::i;:::-;30511:115:::0;:::o;18363:83::-;18429:9;;;;18363:83;:::o;20915:218::-;21003:4;21020:83;21029:12;:10;:12::i;:::-;21043:7;21052:50;21091:10;21052:11;:25;21064:12;:10;:12::i;:::-;-1:-1:-1;;;;;21052:25:0;;;;;;;;;;;;;;;;;-1:-1:-1;21052:25:0;;;:34;;;;;;;;;;;:38;:50::i;31933:322::-;30288:9;;32040:4;;-1:-1:-1;;;;;30288:9:0;30301:10;30288:23;30266:109;;;;-1:-1:-1;;;30266:109:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;32062:21:::1;32086;32096:10;32086:9;:21::i;:::-;32062:45;;32118:26;32124:10;32136:7;32118:5;:26::i;:::-;32155:20;32178:21;32188:10;32178:9;:21::i;:::-;32219:28:::0;;;::::1;::::0;31933:322;-1:-1:-1;;;;31933:322:0:o;32263:96::-;30288:9;;-1:-1:-1;;;;;30288:9:0;30301:10;30288:23;30266:109;;;;-1:-1:-1;;;30266:109:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;32333:18:::1;32344:6;32333:10;:18::i;30403:100::-:0;30486:9;;30446:4;;-1:-1:-1;;;;;30486:9:0;30470:12;:10;:12::i;:::-;-1:-1:-1;;;;;30470:25:0;;30463:32;;30403:100;:::o;30138:85::-;30206:9;;-1:-1:-1;;;;;30206:9:0;30138:85;:::o;18674:119::-;-1:-1:-1;;;;;18767:18:0;18740:7;18767:18;;;;;;;;;;;;18674:119::o;29179:148::-;28759:12;:10;:12::i;:::-;28749:6;;;;;-1:-1:-1;;;;;28749:6:0;;;:22;;;28741:67;;;;;-1:-1:-1;;;28741:67:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;29270:6:::1;::::0;29249:40:::1;::::0;29286:1:::1;::::0;29270:6:::1;::::0;::::1;-1:-1:-1::0;;;;;29270:6:0::1;::::0;29249:40:::1;::::0;29286:1;;29249:40:::1;29300:6;:19:::0;;-1:-1:-1;;;;;;29300:19:0::1;::::0;;29179:148::o;32367:162::-;30288:9;;-1:-1:-1;;;;;30288:9:0;30301:10;30288:23;30266:109;;;;-1:-1:-1;;;30266:109:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;32490:31:::1;32505:7;32514:6;32490:14;:31::i;:::-;32367:162:::0;;:::o;28537:79::-;28602:6;;;;;-1:-1:-1;;;;;28602:6:0;;28537:79::o;17638:87::-;17710:7;17703:14;;;;;;;;-1:-1:-1;;17703:14:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;17677:13;;17703:14;;17710:7;;17703:14;;17710:7;17703:14;;;;;;;;;;;;;;;;;;;;;;;;21636:269;21729:4;21746:129;21755:12;:10;:12::i;:::-;21769:7;21778:96;21817:15;21778:96;;;;;;;;;;;;;;;;;:11;:25;21790:12;:10;:12::i;:::-;-1:-1:-1;;;;;21778:25:0;;;;;;;;;;;;;;;;;-1:-1:-1;21778:25:0;;;:34;;;;;;;;;;;:96;:38;:96::i;19006:175::-;19092:4;19109:42;19119:12;:10;:12::i;:::-;19133:9;19144:6;19109:9;:42::i;19244:151::-;-1:-1:-1;;;;;19360:18:0;;;19333:7;19360:18;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;19244:151::o;29482:244::-;28759:12;:10;:12::i;:::-;28749:6;;;;;-1:-1:-1;;;;;28749:6:0;;;:22;;;28741:67;;;;;-1:-1:-1;;;28741:67:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;29571:22:0;::::1;29563:73;;;;-1:-1:-1::0;;;29563:73:0::1;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;29673:6;::::0;29652:38:::1;::::0;-1:-1:-1;;;;;29652:38:0;;::::1;::::0;29673:6:::1;::::0;::::1;;::::0;29652:38:::1;::::0;;;::::1;29701:6;:17:::0;;-1:-1:-1;;;;;29701:17:0;;::::1;;;-1:-1:-1::0;;;;;;29701:17:0;;::::1;::::0;;;::::1;::::0;;29482:244::o;4739:181::-;4797:7;4829:5;;;4853:6;;;;4845:46;;;;;-1:-1:-1;;;4845:46:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;4911:1;4739:181;-1:-1:-1;;;4739:181:0:o;657:106::-;745:10;657:106;:::o;24781:346::-;-1:-1:-1;;;;;24883:19:0;;24875:68;;;;-1:-1:-1;;;24875:68:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;24962:21:0;;24954:68;;;;-1:-1:-1;;;24954:68:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;25035:18:0;;;;;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;:36;;;25087:32;;;;;;;;;;;;;;;;;24781:346;;;:::o;22395:539::-;-1:-1:-1;;;;;22501:20:0;;22493:70;;;;-1:-1:-1;;;22493:70:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;22582:23:0;;22574:71;;;;-1:-1:-1;;;22574:71:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;22658:47;22679:6;22687:9;22698:6;22658:20;:47::i;:::-;22738:71;22760:6;22738:71;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;22738:17:0;;:9;:17;;;;;;;;;;;;:71;:21;:71::i;:::-;-1:-1:-1;;;;;22718:17:0;;;:9;:17;;;;;;;;;;;:91;;;;22843:20;;;;;;;:32;;22868:6;22843:24;:32::i;:::-;-1:-1:-1;;;;;22820:20:0;;;:9;:20;;;;;;;;;;;;:55;;;;22891:35;;;;;;;22820:20;;22891:35;;;;;;;;;;;;;22395:539;;;:::o;5642:192::-;5728:7;5764:12;5756:6;;;;5748:29;;;;-1:-1:-1;;;5748:29:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;5800:5:0;;;5642:192::o;30634:294::-;-1:-1:-1;;;;;30725:26:0;;30703:121;;;;-1:-1:-1;;;30703:121:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30840:45;;-1:-1:-1;;;;;30840:45:0;;;30868:1;;30840:45;;30868:1;;30840:45;30896:9;:24;;-1:-1:-1;;;;;;30896:24:0;-1:-1:-1;;;;;30896:24:0;;;;;;;;;;30634:294::o;23215:378::-;-1:-1:-1;;;;;23299:21:0;;23291:65;;;;;-1:-1:-1;;;23291:65:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;23369:49;23398:1;23402:7;23411:6;23369:20;:49::i;:::-;23446:12;;:24;;23463:6;23446:16;:24::i;:::-;23431:12;:39;-1:-1:-1;;;;;23502:18:0;;:9;:18;;;;;;;;;;;:30;;23525:6;23502:22;:30::i;:::-;-1:-1:-1;;;;;23481:18:0;;:9;:18;;;;;;;;;;;:51;;;;23548:37;;;;;;;23481:18;;:9;;23548:37;;;;;;;;;;23215:378;;:::o;26731:91::-;26787:27;26793:12;:10;:12::i;:::-;26807:6;26787:5;:27::i;27141:295::-;27218:26;27247:84;27284:6;27247:84;;;;;;;;;;;;;;;;;:32;27257:7;27266:12;:10;:12::i;:::-;27247:9;:32::i;:::-;:36;:84;:36;:84::i;:::-;27218:113;;27344:51;27353:7;27362:12;:10;:12::i;:::-;27376:18;27344:8;:51::i;:::-;27406:22;27412:7;27421:6;27406:5;:22::i;:::-;27141:295;;;:::o;23925:418::-;-1:-1:-1;;;;;24009:21:0;;24001:67;;;;-1:-1:-1;;;24001:67:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;24081:49;24102:7;24119:1;24123:6;24081:20;:49::i;:::-;24164:68;24187:6;24164:68;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;24164:18:0;;:9;:18;;;;;;;;;;;;:68;:22;:68::i;:::-;-1:-1:-1;;;;;24143:18:0;;:9;:18;;;;;;;;;;:89;24258:12;;:24;;24275:6;24258:16;:24::i;:::-;24243:12;:39;24298:37;;;;;;;;24324:1;;-1:-1:-1;;;;;24298:37:0;;;;;;;;;;;;23925:418;;:::o;5203:136::-;5261:7;5288:43;5292:1;5295;5288:43;;;;;;;;;;;;;;;;;:3;:43::i

ipfs://6d251ba4e4b2f2b687a83d146172b3f167a63d86eb7b11922d1c8aa211c7473c