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Contract 0x031f71B5369c251a6544c41CE059e6b3d61e42C6

 
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0x6101591980e9cc0d8fddcf8952eb9975dd5b9370b14ffd016e2781adb73e7a26Drip114116772020-12-08 10:41:30128 days 3 hrs ago0xc5924db956e47bfe3e33c00d3147e976638ea0da IN  0x031f71b5369c251a6544c41ce059e6b3d61e42c60 Ether0.00380183771
0xa908aa6fae77354d665608a5fc2fde4b959def55e361c2d1dc866e991385199aDrip114056342020-12-07 12:21:21129 days 1 hr ago0xc5924db956e47bfe3e33c00d3147e976638ea0da IN  0x031f71b5369c251a6544c41ce059e6b3d61e42c60 Ether0.00157653077429.442
0x3889e0fa2dca479c430270f06e52a6c1c198d04e85225168fbeb4eb30ef55ec1Drip113921012020-12-05 10:25:04131 days 3 hrs ago0xc5924db956e47bfe3e33c00d3147e976638ea0da IN  0x031f71b5369c251a6544c41ce059e6b3d61e42c60 Ether0.001156615221.6
0xc0c7e02c847487217f5ca86f05b1e8aec8cb0ee7f5fec4700fdb8506cee66e32Drip113810012020-12-03 17:28:37132 days 20 hrs ago0x951ce9fd4fb6389a195f513a17a92d125d8d14a7 IN  0x031f71b5369c251a6544c41ce059e6b3d61e42c60 Ether0.00133867525
0x84b41a9d81b6a8881f6f8c4eadad24c40ea3ef65f9b6e5d4a1c3010c3933fc8eDrip113617422020-11-30 18:30:03135 days 19 hrs ago0x951ce9fd4fb6389a195f513a17a92d125d8d14a7 IN  0x031f71b5369c251a6544c41ce059e6b3d61e42c60 Ether0.00465858987
0x4f2369d3d8551a4c8c82e1a4b3060f2493a2f938e972eb1e2b2817c3b3bac1bcDrip113478962020-11-28 15:39:54137 days 22 hrs ago0x951ce9fd4fb6389a195f513a17a92d125d8d14a7 IN  0x031f71b5369c251a6544c41ce059e6b3d61e42c60 Ether0.001140551121.3
0xa76ecad1e811e04f1a130b4303bf18856ed00c4f2f55c4b8add3083b99988136Drip113393652020-11-27 8:03:19139 days 5 hrs ago0x951ce9fd4fb6389a195f513a17a92d125d8d14a7 IN  0x031f71b5369c251a6544c41ce059e6b3d61e42c60 Ether0.001408286126.3
0xa193e1187b557e9252dfce1150402b6bd43fda7788507cac975f567171cf9f5aDrip113349202020-11-26 15:46:44139 days 22 hrs agoIdle.finance: Deployer IN  0x031f71b5369c251a6544c41ce059e6b3d61e42c60 Ether0.0083547100
0xc524fbfba80f0a851c70396dce49930a8d7b01d5a5f2ca60406df8b538dae9c00x60806040113338072020-11-26 11:44:43140 days 2 hrs agoIdle.finance: Deployer IN  Contract Creation0 Ether0.0409522480
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Contract Source Code Verified (Exact Match)

Contract Name:
Reservoir

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 30000 runs

Other Settings:
default evmVersion
File 1 of 6 : Reservoir.sol
pragma solidity 0.6.12;

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

/**
 * @title Reservoir Contract
 * @notice Distributes a token to a different contract at a fixed rate.
 * @dev This contract must be poked via the `drip()` function every so often.
 * @author Compound
 */
contract Reservoir {

  /// @notice The block number when the Reservoir started (immutable)
  uint public dripStart;

  /// @notice Tokens per block that to drip to target (immutable)
  uint public dripRate;

  /// @notice Reference to token to drip (immutable)
  ERC20 public token;

  /// @notice Target to receive dripped tokens (immutable)
  address public target; // target is Comptroller here

  /// @notice Amount that has already been dripped
  uint public dripped;

  /// @notice timestamp for bonus end
  uint public bonusEnd;

  /// @notice bonus multiplier
  uint public bonusMultiplier;

  /**
    * @notice Constructs a Reservoir
    * @param dripRate_ Numer of tokens per block to drip
    * @param token_ The token to drip
    * @param target_ The recipient of dripped tokens
    */
  constructor(uint dripRate_, address token_, address target_, uint256 _bonusMultiplier) public {
    token = ERC20(token_);
    dripStart = block.number;
    dripRate = dripRate_;
    target = target_;
    dripped = 0;
    bonusEnd = now + 30 days;
    bonusMultiplier = _bonusMultiplier;
  }

  /**
    * @notice Drips the maximum amount of tokens to match the drip rate since inception
    * @dev Note: this will only drip up to the amount of tokens available.
    * @return The amount of tokens dripped in this call
    */
  function drip() public returns (uint) {
    // First, read storage into memory
    ERC20 token_ = token;
    uint reservoirBalance_ = token_.balanceOf(address(this)); // TODO: Verify this is a static call
    uint dripRate_ = dripRate;
    uint dripStart_ = dripStart;
    uint dripped_ = dripped;
    address target_ = target;
    uint blockNumber_ = block.number;

    // Next, calculate intermediate values
    uint dripTotal_ = mul(dripRate_, blockNumber_ - dripStart_, "dripTotal overflow");
    uint deltaDrip_ = sub(dripTotal_, dripped_, "deltaDrip underflow");
    uint toDrip_ = min(reservoirBalance_, deltaDrip_);
    uint drippedNext_ = add(dripped_, toDrip_, "tautological");

    // Finally, write new `dripped` value and transfer tokens to target
    dripped = drippedNext_;
    token_.transfer(target_, block.timestamp < bonusEnd ? mul(toDrip_, bonusMultiplier, "dripBonus overflow") : toDrip_);

    return toDrip_;
  }

  /* Internal helper functions for safe math */

  function add(uint a, uint b, string memory errorMessage) internal pure returns (uint) {
    uint c = a + b;
    require(c >= a, errorMessage);
    return c;
  }

  function sub(uint a, uint b, string memory errorMessage) internal pure returns (uint) {
    require(b <= a, errorMessage);
    uint c = a - b;
    return c;
  }

  function mul(uint a, uint b, string memory errorMessage) internal pure returns (uint) {
    if (a == 0) {
      return 0;
    }
    uint c = a * b;
    require(c / a == b, errorMessage);
    return c;
  }

  function min(uint a, uint b) internal pure returns (uint) {
    if (a <= b) {
      return a;
    } else {
      return b;
    }
  }
}

File 2 of 6 : 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 3 of 6 : SafeMath.sol
// SPDX-License-Identifier: MIT

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 4 of 6 : ERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

import "../../GSN/Context.sol";
import "./IERC20.sol";
import "../../math/SafeMath.sol";
import "../../utils/Address.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;
    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 is 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 5 of 6 : IERC20.sol
// SPDX-License-Identifier: MIT

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 6 of 6 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.2;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @dev 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);
            }
        }
    }
}

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 30000
  },
  "evmVersion": "istanbul",
  "libraries": {
    "": {}
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"uint256","name":"dripRate_","type":"uint256"},{"internalType":"address","name":"token_","type":"address"},{"internalType":"address","name":"target_","type":"address"},{"internalType":"uint256","name":"_bonusMultiplier","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"bonusEnd","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"bonusMultiplier","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"drip","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"dripRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dripStart","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dripped","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"target","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract ERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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

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

0000000000000000000000000000000000000000000000000de0b6b3a7640000000000000000000000000000875773784af8135ea0ef43b5a374aad105c5d39e000000000000000000000000275da8e61ea8e02d51edd8d0dc5c0e62b4cdb0be0000000000000000000000000000000000000000000000000000000000000004

-----Decoded View---------------
Arg [0] : dripRate_ (uint256): 1000000000000000000
Arg [1] : token_ (address): 0x875773784af8135ea0ef43b5a374aad105c5d39e
Arg [2] : target_ (address): 0x275da8e61ea8e02d51edd8d0dc5c0e62b4cdb0be
Arg [3] : _bonusMultiplier (uint256): 4

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000de0b6b3a7640000
Arg [1] : 000000000000000000000000875773784af8135ea0ef43b5a374aad105c5d39e
Arg [2] : 000000000000000000000000275da8e61ea8e02d51edd8d0dc5c0e62b4cdb0be
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000004


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