Contract 0xa9ecf35F8Fb77083d33D8723B94E87957F4091cF

 
 
Txn Hash
Method
Block
From
To
Value [Txn Fee]
0xdd6612bbcc450a74e896883c7abab2e515e1b7e437b5726ab09ea35cad2dc4a8Notify Reward Am...339253762022-10-04 15:32:39119 days 8 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.022420678199 42.599999999
0x1e7c00958bb722f29716567e918705f8ed4eea3c7a183ff4f780556e81889d1fUpdate Rewards339252472022-10-04 15:28:09119 days 8 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.002097297781 40.710000021
0xb3d0618411cebceda84ff51d438717ed4c48d304ea60e3a67aafdb3ef5ceead5Update Rewards339252382022-10-04 15:27:51119 days 8 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.002060720001 40.000000023
0x4a7678b973fe6198057cf80b2ef1d1d8fa6c4dabd4bfeffa304ba7ecc9dd1142Update Rewards339252302022-10-04 15:27:35119 days 8 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.002421346001 47.000000023
0xe04da7981457aafc1b8ec8bbf691c0287d1943427ef27bbee09d0f7ec7e7fb26Update Rewards339252212022-10-04 15:27:17119 days 8 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.001622817001 31.500000022
0xb3be8be121e53700dc9f761713fd06f87457f9805c549554383f4826810affc8Update Rewards339252132022-10-04 15:27:01119 days 8 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.0021740596 42.2
0x460e5e9a86f6ca5fb53d9e24b01b3e198c62fdc5c4ba1c121f398ceac87f3cedUpdate Rewards339252042022-10-04 15:26:43119 days 8 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.001545540001 30.000000023
0xa10475d1babcb02e2b5e90b4f61e632866e6202def78e91de3ecd94c8c8e31c5Update Rewards339251962022-10-04 15:26:27119 days 8 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.001545540001 30.000000021
0x79edfbea850238cd56f1020406362d70d1a6377ad613fb85112972e42ed38756Update Rewards339251872022-10-04 15:26:09119 days 8 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.001545540001 30.000000023
0xa9d7cafb326ae2c2ea5bd508604aae76f4d8bc523ef15463284befbced555514Notify Reward Am...336003882022-09-26 18:42:19127 days 5 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.017696728777 33.810000015
0x093b84ad8806d3cf3496917161bdcb872fed12ac99b112c180f2a3cd15d69d22Update Rewards336002862022-09-26 18:38:47127 days 5 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.0025759 50
0xa7081877ffbc647435cee6b8dc22d34d2c0919e5bc73db2a6cad73b763fbcbbaUpdate Rewards336002772022-09-26 18:38:29127 days 5 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.0032842725 63.75
0x35a2690e29f83fc8a6803915229ffd11287bcb85b4307aa930789c2165afdf43Update Rewards336002692022-09-26 18:38:13127 days 5 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.002003125394 38.88204889
0xb6c1c9d4f86c5963aa7442fa6d5788b87e90ca2cc5ce9b3b8f606cb7c8dba489Update Rewards336002612022-09-26 18:37:57127 days 5 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.002318310001 45.000000022
0x72882a0b531a4e6b48069e35194a9f5b700f1a1d71184377088ee3710ddcd467Update Rewards336002552022-09-26 18:37:41127 days 5 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.00244382862 47.436403202
0x849cc275d75affdcbb74abd199728ee28424cd129865972b124d10de1d11bc6aUpdate Rewards336002462022-09-26 18:37:23127 days 5 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.002627497878 51.001550505
0xf55cc78cc201992f695ceb867a745f4761986d10985c9dfb41c4047b2d2ed8cdUpdate Rewards336002382022-09-26 18:37:07127 days 5 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.001945299193 37.75960235
0x7f99b7dd389d1bc821167473acc53bff9dcb01bbe3e26a5a39cfeb714341eac4Update Rewards336002302022-09-26 18:36:51127 days 5 hrs ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.001622817 31.500000014
0xa580afe5afbaf4a482c4e32626d14cce6b17a12bdd59b057595d54f6af2b003cNotify Reward Am...330295902022-09-12 22:59:39141 days 1 hr ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.04762773 90
0x0ecaf1286de23c16e06e88ba0ddce5868b2fada4d0145a4abb3139066d688277Update Rewards330293292022-09-12 22:50:41141 days 1 hr ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.0031477498 61.1
0xeb02b76b657152dc4d3ce8f0d33f936be457e820f1fef4ec78eb592b49e63a13Update Rewards330293212022-09-12 22:50:25141 days 1 hr ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.003194116 62.000000009
0x8189dc7e9043ea9319708f44a107aa4b6cea0693446fb65c6dd4fd03228d285cUpdate Rewards330293132022-09-12 22:50:09141 days 1 hr ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.0077277 150.000000002
0x137eb12adfdcd1dd6bd32e8a3ae645ad906ab0d9b3fd809ac2ca74d8d4e9a086Update Rewards330293062022-09-12 22:49:51141 days 1 hr ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.0031477498 61.1
0x4d3c5bf5cbc2207edad1ef111566e82dc3b54e4bd3ab5f32163c59f41693f0ecUpdate Rewards330292982022-09-12 22:49:35141 days 1 hr ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.003194116 62.00000001
0xe68416a0923297753fd8c84e06fa8dc4aa14d25adaeadfdb67851c1efb659766Update Rewards330292902022-09-12 22:49:19141 days 1 hr ago0xb0dd96118594903bacb2746eb228550c10b2b1da IN  0xa9ecf35f8fb77083d33d8723b94e87957f4091cf0 MATIC0.003194116 62.00000001
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0x3ffa4eec6d821400c6ca1ccff81d0582f27757320a3f8435f3efd978cec6ffa2323084602022-08-25 14:02:21159 days 9 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0x133e9e9aa5a4691238bb890d5f3d0ff1acf5fc42765294c176af0aecb2baf6ac314737242022-08-03 13:18:19181 days 10 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0x3b77a341f5dd086d079d5975caf7a4ddc0ba392e0ced015288c95f8234854ea5312920262022-07-29 22:34:35186 days 1 hr ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0xea5cc60e2c1465156e53165d760abf87dcc6f331ecd0e74004027429aca3c725312393422022-07-28 14:30:02187 days 9 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0x9aa56d9537a0eb02308e3d384118a93ae9e867447cff15f8295f8614627e247f276902902022-04-28 20:44:33278 days 3 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0x5cf2389235c346b74543a2c44bf099a369858a4671e4824eb968184758284dee245835052022-02-05 14:59:44360 days 8 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0x30643ad454ee5b2400986ad2115ce0f4a2acb85b024aa142e4eb67413632adb0242363782022-01-27 19:07:31369 days 4 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0xb9d789149737ab7592c359951f9f419de3f3177bf849221b226c6490a5e564c8239293442022-01-20 2:33:40376 days 21 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0x9f5cd6f188e9bfac112826d7c8254c09941854e44e75ae4cef3857547d4dc329239200282022-01-19 20:43:30377 days 3 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0xc93d8aa76516fc6d8a6ce5092cd2aa6b9a1d88d6ad4681280f417ac6f760b285224801822021-12-13 15:45:46414 days 8 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0xe58d2de5b1d97847ad458108224f110bee4d891466768af42a07da4935dbe443215606232021-11-19 16:21:28438 days 7 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0xa00ca20a9b3ba67971e79bbc3bb77f87f2c5521af49d993be8fa3563fad5f1cd211844012021-11-09 22:07:39448 days 1 hr ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0xb32ae9cd111ea962af92b66f545e607d4b29cdee3e1e755349047dbecb5e892a183465632021-08-24 14:02:06525 days 9 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0xde13dac89e73d1b533285a93ffb14d08bc2002c765dc3bf7a92146264bb201a9180498782021-08-16 15:33:11533 days 8 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0xe85407e76b04653837dbdb876332c32fc5f77fbe187ad0e0448a99cbb4022de9168877962021-07-15 13:01:44565 days 10 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
0x73bb38f89c48158ccb34acbd2e6a8422aace25d89c70d6fdb3c5ed9c385f8100168877892021-07-15 13:01:30565 days 10 hrs ago 0xa9ecf35f8fb77083d33d8723b94e87957f4091cf  Contract Creation0 MATIC
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Contract Source Code Verified (Exact Match)

Contract Name:
VaultDistributionFactory

Compiler Version
v0.5.17+commit.d19bba13

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 2 : VaultDistributionFactory.sol
//SPDX-License-Identifier: MIT
pragma solidity 0.5.17;

import "./VaultDistributionRewards.sol";

contract VaultDistributionFactory is Ownable {
	// immutables
	address public rewardsToken;
	uint256 public stakingRewardsGenesis;

	// the staking tokens for which the rewards contract has been deployed
	address[] public stakingTokens;

	// info about rewards for a particular staking token
	struct StakingRewardsInfo {
		address stakingRewards;
		uint256 rewardAmount;
		uint256 endTime;
	}

	// rewards info by staking token
	mapping(address => StakingRewardsInfo)
		public stakingRewardsInfoByStakingToken;

	constructor(address _rewardsToken, uint256 _stakingRewardsGenesis)
		public
		Ownable()
	{
		require(
			_stakingRewardsGenesis >= block.timestamp,
			"StakingRewardsFactory::constructor: genesis too soon"
		);
		require(
			_rewardsToken != address(0),
			"rewards tokend cannot be zero address"
		);
		rewardsToken = _rewardsToken;
		stakingRewardsGenesis = _stakingRewardsGenesis;
	}

	///// permissioned functions

	// deploy a staking reward contract for the staking token, and store the reward amount
	// the reward will be distributed to the staking reward contract no sooner than the genesis
	function deploy(
		address stakingToken,
		uint256 rewardAmount,
		address vault,
		uint256 endTime
	) public onlyOwner {
		StakingRewardsInfo storage info = stakingRewardsInfoByStakingToken[
			stakingToken
		];
		require(
			info.stakingRewards == address(0),
			"StakingRewardsFactory::deploy: already deployed"
		);

		info.stakingRewards = address(
			new VaultDistributionRewards(
				/*_rewardsDistribution=*/
				address(this),
				rewardsToken,
				vault,
				owner()
			)
		);
		info.rewardAmount = rewardAmount;
		info.endTime = endTime;
		stakingTokens.push(stakingToken);
	}

	// updates the rerward amount and endTime for the distribution contract
	function updateRewards(
		address stakingToken,
		uint256 rewardAmount,
		uint256 endTime
	) public onlyOwner {
		require(
			stakingToken != address(0),
			"staking tokend cannot be zero address"
		);
		StakingRewardsInfo storage info = stakingRewardsInfoByStakingToken[
			stakingToken
		];
		info.rewardAmount = rewardAmount;
		info.endTime = endTime;
	}

	///// permissionless functions

	// call notifyRewardAmount for all staking tokens.
	function notifyRewardAmounts() public {
		require(
			stakingTokens.length > 0,
			"StakingRewardsFactory::notifyRewardAmounts: called before any deploys"
		);
		for (uint256 i = 0; i < stakingTokens.length; i++) {
			notifyRewardAmount(stakingTokens[i]);
		}
	}

	// notify reward amount for an individual staking token.
	// this is a fallback in case the notifyRewardAmounts costs too much gas to call for all contracts
	function notifyRewardAmount(address stakingToken) public {
		require(
			block.timestamp >= stakingRewardsGenesis,
			"StakingRewardsFactory::notifyRewardAmount: not ready"
		);

		StakingRewardsInfo storage info = stakingRewardsInfoByStakingToken[
			stakingToken
		];
		require(
			info.stakingRewards != address(0),
			"StakingRewardsFactory::notifyRewardAmount: not deployed"
		);

		if (info.rewardAmount > 0) {
			uint256 rewardAmount = info.rewardAmount;
			info.rewardAmount = 0;

			require(
				IERC20(rewardsToken).transfer(
					info.stakingRewards,
					rewardAmount
				),
				"StakingRewardsFactory::notifyRewardAmount: transfer failed"
			);
			VaultDistributionRewards(info.stakingRewards).notifyRewardAmount(
				rewardAmount,
				info.endTime
			);
		}
	}

	function sweep(
		address recipient,
		address erc20,
		uint256 transferAmount
	) public onlyOwner {
		require(recipient != address(0), "CANNOT TRANSFER TO ZERO ADDRESS");
		require(transferAmount > 0, "TRANSFER AMOUNT 0");
		require(
			IERC20(erc20).transfer(recipient, transferAmount),
			"StakingRewardsFactory::sweep: transfer failed"
		);
	}
}

File 2 of 2 : VaultDistributionRewards.sol
//SPDX-License-Identifier: MIT
pragma solidity 0.5.17;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP. Does not include
 * the optional functions; to access them see `ERC20Detailed`.
 */
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.
	 *
	 * > 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
	);
}

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be aplied to your functions to restrict their use to
 * the owner.
 */
contract Ownable {
	address private _owner;

	event OwnershipTransferred(
		address indexed previousOwner,
		address indexed newOwner
	);

	/**
	 * @dev Initializes the contract setting the deployer as the initial owner.
	 */
	constructor() internal {
		_owner = msg.sender;
		emit OwnershipTransferred(address(0), _owner);
	}

	/**
	 * @dev Returns the address of the current owner.
	 */
	function owner() public view returns (address) {
		return _owner;
	}

	/**
	 * @dev Throws if called by any account other than the owner.
	 */
	modifier onlyOwner() {
		require(isOwner(), "Ownable: caller is not the owner");
		_;
	}

	/**
	 * @dev Returns true if the caller is the current owner.
	 */
	function isOwner() public view returns (bool) {
		return msg.sender == _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 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 onlyOwner {
		_transferOwnership(newOwner);
	}

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

/**
 * @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) {
		require(b <= a, "SafeMath: subtraction overflow");
		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-solidity/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) {
		// Solidity only automatically asserts when dividing by 0
		require(b > 0, "SafeMath: division by zero");
		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) {
		require(b != 0, "SafeMath: modulo by zero");
		return a % b;
	}
}

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
	/**
	 * @dev Returns the largest of two numbers.
	 */
	function max(uint256 a, uint256 b) internal pure returns (uint256) {
		return a >= b ? a : b;
	}

	/**
	 * @dev Returns the smallest of two numbers.
	 */
	function min(uint256 a, uint256 b) internal pure returns (uint256) {
		return a < b ? a : b;
	}

	/**
	 * @dev Returns the average of two numbers. The result is rounded towards
	 * zero.
	 */
	function average(uint256 a, uint256 b) internal pure returns (uint256) {
		// (a + b) / 2 can overflow, so we distribute
		return (a / 2) + (b / 2) + (((a % 2) + (b % 2)) / 2);
	}
}

/**
 * @dev Optional functions from the ERC20 standard.
 */
contract ERC20Detailed is IERC20 {
	string private _name;
	string private _symbol;
	uint8 private _decimals;

	/**
	 * @dev Sets the values for `name`, `symbol`, and `decimals`. All three of
	 * these values are immutable: they can only be set once during
	 * construction.
	 */
	constructor(
		string memory name,
		string memory symbol,
		uint8 decimals
	) public {
		_name = name;
		_symbol = symbol;
		_decimals = decimals;
	}

	/**
	 * @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.
	 *
	 * > Note that 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 Collection of functions related to the address type,
 */
library Address {
	/**
	 * @dev Returns true if `account` is a contract.
	 *
	 * This test is non-exhaustive, and there may be false-negatives: during the
	 * execution of a contract's constructor, its address will be reported as
	 * not containing a contract.
	 *
	 * > It is unsafe to assume that an address for which this function returns
	 * false is an externally-owned account (EOA) and not a contract.
	 */
	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;
	}
}

/**
 * @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 ERC20;` 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)
		);
	}

	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
		);
		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.

		// A Solidity high level call has three parts:
		//  1. The target address is checked to verify it contains contract code
		//  2. The call itself is made, and success asserted
		//  3. The return value is decoded, which in turn checks the size of the returned data.
		// solhint-disable-next-line max-line-length
		require(address(token).isContract(), "SafeERC20: call to non-contract");

		// solhint-disable-next-line avoid-low-level-calls
		(bool success, bytes memory returndata) = address(token).call(data);
		require(success, "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"
			);
		}
	}
}

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the `nonReentrant` modifier
 * available, which can be aplied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 */
contract ReentrancyGuard {
	/// @dev counter to allow mutex lock with only one SSTORE operation
	uint256 private _guardCounter;

	constructor() internal {
		// The counter starts at one to prevent changing it from zero to a non-zero
		// value, which is a more expensive operation.
		_guardCounter = 1;
	}

	/**
	 * @dev Prevents a contract from calling itself, directly or indirectly.
	 * Calling a `nonReentrant` function from another `nonReentrant`
	 * function is not supported. It is possible to prevent this from happening
	 * by making the `nonReentrant` function external, and make it call a
	 * `private` function that does the actual work.
	 */
	modifier nonReentrant() {
		_guardCounter += 1;
		uint256 localCounter = _guardCounter;
		_;
		require(
			localCounter == _guardCounter,
			"ReentrancyGuard: reentrant call"
		);
	}
}

// Inheritance
interface IStakingRewards {
	// Views
	function lastTimeRewardApplicable() external view returns (uint256);

	function rewardPerToken() external view returns (uint256);

	function earned(address account) external view returns (uint256);

	function getRewardForDuration() external view returns (uint256);

	function totalSupply() external view returns (uint256);

	function balanceOf(address account) external view returns (uint256);

	// Mutative

	function stake(address user, uint256 amount) external;

	function withdraw(address user, uint256 amount) external;

	function getReward(address user) external;

	// function exit(address user) external;
}

contract RewardsDistributionRecipient {
	address public rewardsDistribution;

	function notifyRewardAmount(uint256 reward, uint256 endTime) external;

	modifier onlyRewardsDistribution() {
		require(
			msg.sender == rewardsDistribution,
			"Caller is not RewardsDistribution contract"
		);
		_;
	}
}

contract VaultDistributionRewards is
	IStakingRewards,
	RewardsDistributionRecipient,
	ReentrancyGuard
{
	using SafeMath for uint256;
	using SafeERC20 for IERC20;

	/* ========== STATE VARIABLES ========== */

	IERC20 public rewardsToken;
	uint256 public periodFinish = 0;
	uint256 public rewardRate = 0;
	uint256 public rewardsDuration = 0;
	uint256 public lastUpdateTime;
	uint256 public rewardPerTokenStored;

	mapping(address => uint256) public userRewardPerTokenPaid;
	mapping(address => uint256) public rewards;

	uint256 private _totalSupply;
	mapping(address => uint256) private _balances;
	address public vault;
	address public owner;

	/* ========== CONSTRUCTOR ========== */

	constructor(
		address _rewardsDistribution,
		address _rewardsToken,
		address _vault,
		address _owner
	) public {
		rewardsToken = IERC20(_rewardsToken);
		rewardsDistribution = _rewardsDistribution;
		vault = _vault;
		owner = _owner;
	}

	/* ========== VIEWS ========== */

	function totalSupply() external view returns (uint256) {
		return _totalSupply;
	}

	function balanceOf(address account) external view returns (uint256) {
		return _balances[account];
	}

	function lastTimeRewardApplicable() public view returns (uint256) {
		return Math.min(block.timestamp, periodFinish);
	}

	function rewardPerToken() public view returns (uint256) {
		if (_totalSupply == 0) {
			return rewardPerTokenStored;
		}
		return
			rewardPerTokenStored.add(
				lastTimeRewardApplicable()
					.sub(lastUpdateTime)
					.mul(rewardRate)
					.mul(1e18)
					.div(_totalSupply)
			);
	}

	function earned(address account) public view returns (uint256) {
		return
			_balances[account]
				.mul(rewardPerToken().sub(userRewardPerTokenPaid[account]))
				.div(1e18)
				.add(rewards[account]);
	}

	function getRewardForDuration() external view returns (uint256) {
		return rewardRate.mul(rewardsDuration);
	}

	function stake(address user, uint256 amount)
		external
		onlyVault
		nonReentrant
		updateReward(user)
	{
		require(amount > 0, "Cannot stake 0");
		_totalSupply = _totalSupply.add(amount);
		_balances[user] = _balances[user].add(amount);
		emit Staked(user, amount);
	}

	function withdraw(address user, uint256 amount)
		public
		onlyVault
		nonReentrant
		updateReward(user)
	{
		require(amount > 0, "Cannot withdraw 0");
		_totalSupply = _totalSupply.sub(amount);
		_balances[user] = _balances[user].sub(amount);
		emit Withdrawn(user, amount);
	}

	function getReward(address user) public nonReentrant updateReward(user) {
		uint256 reward = rewards[user];
		if (reward > 0) {
			rewards[user] = 0;
			rewardsToken.safeTransfer(user, reward);
			emit RewardPaid(user, reward);
		}
	}

	function sweep(
		address recipient,
		address erc20,
		uint256 transferAmount
	) public {
		require(msg.sender == owner, "INVALID ACCESS");
		require(recipient != address(0), "CANNOT TRANSFER TO ZERO ADDRESS");
		require(transferAmount > 0, "TRANSFER AMOUNT 0");
		require(
			IERC20(erc20).transfer(recipient, transferAmount),
			"VaultDistrubution::sweep: transfer failed"
		);
	}

	/* ========== RESTRICTED FUNCTIONS ========== */

	function notifyRewardAmount(uint256 reward, uint256 endTime)
		external
		onlyRewardsDistribution
		updateReward(address(0))
	{
		rewardsDuration = endTime.sub(block.timestamp);
		if (block.timestamp >= periodFinish) {
			rewardRate = reward.div(rewardsDuration);
		} else {
			uint256 remaining = periodFinish.sub(block.timestamp);
			uint256 leftover = remaining.mul(rewardRate);
			rewardRate = reward.add(leftover).div(rewardsDuration);
		}

		// Ensure the provided reward amount is not more than the balance in the contract.
		// This keeps the reward rate in the right range, preventing overflows due to
		// very high values of rewardRate in the earned and rewardsPerToken functions;
		// Reward + leftover must be less than 2^256 / 10^18 to avoid overflow.
		uint256 balance = rewardsToken.balanceOf(address(this));
		require(
			rewardRate <= balance.div(rewardsDuration),
			"Provided reward too high"
		);

		lastUpdateTime = block.timestamp;
		periodFinish = endTime;
		emit RewardAdded(reward);
	}

	/* ========== MODIFIERS ========== */

	modifier updateReward(address account) {
		rewardPerTokenStored = rewardPerToken();
		lastUpdateTime = lastTimeRewardApplicable();
		if (account != address(0)) {
			rewards[account] = earned(account);
			userRewardPerTokenPaid[account] = rewardPerTokenStored;
		}
		_;
	}

	modifier onlyVault() {
		require(
			msg.sender == vault,
			"Invalid Access: Can only be accessed by ETHA Vaults"
		);
		_;
	}

	/* ========== EVENTS ========== */

	event RewardAdded(uint256 reward);
	event Staked(address indexed user, uint256 amount);
	event Withdrawn(address indexed user, uint256 amount);
	event RewardPaid(address indexed user, uint256 reward);
}

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

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_rewardsToken","type":"address"},{"internalType":"uint256","name":"_stakingRewardsGenesis","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"constant":false,"inputs":[{"internalType":"address","name":"stakingToken","type":"address"},{"internalType":"uint256","name":"rewardAmount","type":"uint256"},{"internalType":"address","name":"vault","type":"address"},{"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"deploy","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"stakingToken","type":"address"}],"name":"notifyRewardAmount","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"notifyRewardAmounts","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"rewardsToken","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"stakingRewardsGenesis","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"stakingRewardsInfoByStakingToken","outputs":[{"internalType":"address","name":"stakingRewards","type":"address"},{"internalType":"uint256","name":"rewardAmount","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"stakingTokens","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"address","name":"erc20","type":"address"},{"internalType":"uint256","name":"transferAmount","type":"uint256"}],"name":"sweep","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"stakingToken","type":"address"},{"internalType":"uint256","name":"rewardAmount","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"updateRewards","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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

00000000000000000000000059e9261255644c411afdd00bd89162d09d862e380000000000000000000000000000000000000000000000000000000060f03f94

-----Decoded View---------------
Arg [0] : _rewardsToken (address): 0x59e9261255644c411afdd00bd89162d09d862e38
Arg [1] : _stakingRewardsGenesis (uint256): 1626357652

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000059e9261255644c411afdd00bd89162d09d862e38
Arg [1] : 0000000000000000000000000000000000000000000000000000000060f03f94


Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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