Contract 0x5312f4968901Ec9d4fc43d2b0e437041614B14A2 1

Contract Overview

Balance:
0 Ether

Token:
Txn Hash
Method
Block
From
To
Value
0x3aee1b2e997592a50d9a78a25c0754fe1485dc91ba73acaa2406677a8a4fb38aTransfer120705472022-03-11 4:09:23161 days 18 hrs ago0x96ed2317f94df5de29fac9b65173c1c55abe2d54 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00012731 2.46459395
0x323c0b1644dc6b583357ab95342f2cfc2ea11ef5ea291dbbc84ad5990ec24c3cTransfer119955342022-02-20 23:44:01179 days 23 hrs ago0x96ed2317f94df5de29fac9b65173c1c55abe2d54 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000001
0x13f5437a666f402d0cd2404b1ec114980dad5c3eb9df541fa28843874362797aApprove118391002022-01-18 23:53:28212 days 23 hrs ago0xbccecf614ba33892596dee015bda0c7a76c0adc2 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00065075 14.09113533
0x8d19c3f8100640486866b5854111b440bfed7de4a75a3b04e052e9aff0c3dce5Transfer117990232022-01-12 4:31:02219 days 18 hrs ago0xbc022f0afd95474c751af21d60b09199b2699f90 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00004042 1.50000001
0xed82fc2c32832ea0423d5cfec3f88bb1f3b96d47e18ca03dddb5379410e21f89Transfer117990232022-01-12 4:31:02219 days 18 hrs ago0x25ff2d07d072a67af1aefc57c192834783e03563 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000001
0x9c54c6313b5fb3f5335b9d1b862e7b397bd10332d5bf691ae69f1433c9555452Transfer117990232022-01-12 4:31:02219 days 18 hrs ago0x262a038d0bc05b4112c7d58bbfd407810bcfe2ab IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000001
0x910ae4f69ddc179305b623fa2ea51a6fea8167c21e7783f2026e04fe33139b23Transfer117990232022-01-12 4:31:02219 days 18 hrs ago0x314676c83f8642916d468df67714d5c27c3b1325 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000001
0x87ceb48ac8a8da74b539733d0681e903ad0f6e0512845512812ed56375df91afTransfer117990232022-01-12 4:31:02219 days 18 hrs ago0x314676c83f8642916d468df67714d5c27c3b1325 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000001
0xf25d549bce527b90103c8e1b4e7aa5d8d6eee3e64b7bbb99a0855d750c646218Transfer117990232022-01-12 4:31:02219 days 18 hrs ago0xa99e4c0b86011a13c63f21f740f3f65ae8ef33d7 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000001
0x4a0f3a6cfd71001b711689d68ff36025bc5d0327c5ab0e86379d29e3a50698f1Transfer117990212022-01-12 4:30:39219 days 18 hrs ago0x262a038d0bc05b4112c7d58bbfd407810bcfe2ab IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000001
0x02f6c397acb5212d6d13e00e6377f3902258d1d2178c7fbea35841c27de5eb54Transfer117990212022-01-12 4:30:39219 days 18 hrs ago0x314676c83f8642916d468df67714d5c27c3b1325 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007745 1.50000001
0xdb7c18a5d82f2d61e1a935abf10eb62c491813e79e0cfa8a731a8bd1a379d7edTransfer117990192022-01-12 4:30:31219 days 18 hrs ago0xa99e4c0b86011a13c63f21f740f3f65ae8ef33d7 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000002
0xc9ea1c9a3767a10211450cdcf2445783d2be0b15b0fe581540e802bf48b309bbTransfer117990162022-01-12 4:30:09219 days 18 hrs ago0xa99e4c0b86011a13c63f21f740f3f65ae8ef33d7 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007745 1.50000002
0x8cd787bd2213902c6ccfd190651edeef883a241275b351d187fd66a5a62b0a60Transfer117990162022-01-12 4:30:09219 days 18 hrs ago0x314676c83f8642916d468df67714d5c27c3b1325 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000002
0x39f8529c94253a252595f1793ffa85c1907aaab0e88219b296b2a9808bb5424bTransfer117985362022-01-12 2:52:14219 days 20 hrs ago0x262a038d0bc05b4112c7d58bbfd407810bcfe2ab IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.0000777 1.50463028
0x4e34d6faf982ddcafe03c1928fc58dc356e68634de35ecfe92444f9cde3f81d3Transfer117985212022-01-12 2:49:42219 days 20 hrs ago0x262a038d0bc05b4112c7d58bbfd407810bcfe2ab IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007783 1.50664081
0xa86406ca6aa415574f655793f2f3f01602be2d1df705b253a6ffce67e6e203efTransfer117985192022-01-12 2:48:25219 days 20 hrs ago0x262a038d0bc05b4112c7d58bbfd407810bcfe2ab IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007776 1.50531265
0xae4dec64d703fb9f722719f4b89bf02d857a543c581b0075a2aa178dc6666d2bTransfer117985182022-01-12 2:47:58219 days 20 hrs ago0x262a038d0bc05b4112c7d58bbfd407810bcfe2ab IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007775 1.50519165
0x76e330d21d30a0042ba9f21d84dfad15f4fe4afa58b30c40ea0b863f3ca3883bAdd Minter117679842022-01-07 5:30:09224 days 17 hrs ago0xdaeca4f52c4be0d6e7de675c2feb4c3006a96c84 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00004782 1
0x51544c0715a3259da7bdc5196eb87c3a20b73224db245bcee041e32123599145Transfer115979842021-12-11 13:14:29251 days 9 hrs ago0x96ed2317f94df5de29fac9b65173c1c55abe2d54 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00010434 2.01995711
0x4e7669ffe28ff7324637d1f6c1e8b50625f1664179e38ada8eae0a25f692e2feApprove112263062021-10-14 7:53:51309 days 15 hrs ago0x262a038d0bc05b4112c7d58bbfd407810bcfe2ab IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00004628 1.0022886
0x73703c5c017f8a134968b2230d2ed01f29f6aa0459e7db0f921b8a8ab64602e0Transfer111048892021-09-25 15:56:29328 days 7 hrs ago0x6a0e33fd9c239618c5964af2454039167a329ad6 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00007747 1.50000001
0xa772992ad9a51f6e3e8cfbab52c22408ae553b76f57b9910e20a3a76bb3f58e4Deposit111023872021-09-25 5:28:48328 days 17 hrs ago0xb9e11fe8a559677798a1b7aca998729923626caf IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00030102 1
0xdeb41362c94fa0e0614eef03a9b732bd2c9f63d169833ba8febce040a48b6e63Deposit111023502021-09-25 5:19:06328 days 17 hrs ago0x8e5f1328b270313570b41e23101b0c0769cae144 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00028672 1
0xc116eefdf2ee682b69375991353cbc84507b0e43c7d13972e5adef50c04030e7Deposit111023482021-09-25 5:18:07328 days 17 hrs ago0x6a0e33fd9c239618c5964af2454039167a329ad6 IN  0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether0.00028672 1
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0xccb0476aced169e53e3ba7dd916b8a0198731ed7c84802440b643dff1c38c456114476042021-11-18 6:00:30274 days 17 hrs ago 0x5312f4968901ec9d4fc43d2b0e437041614b14a2 0xb9f341cd76acc598f0fd74458f0e4ffe754a7da70 Ether
0xccb0476aced169e53e3ba7dd916b8a0198731ed7c84802440b643dff1c38c456114476042021-11-18 6:00:30274 days 17 hrs ago 0x5312f4968901ec9d4fc43d2b0e437041614b14a2 0xd6d07f1c048bdf2b3d5d9b6c25ed1fc5348d0a700 Ether
0xccb0476aced169e53e3ba7dd916b8a0198731ed7c84802440b643dff1c38c456114476042021-11-18 6:00:30274 days 17 hrs ago 0xd5b5a1e3699c7ea8b031e96444293c5d82083c65 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x2593fbe3f6a0dba172e5029b4f18c6b1bbd21ab484b6a5a1dbe6c158481daff7112264802021-10-14 8:50:57309 days 14 hrs ago 0x5d3c244697b9c53516471371111661fdb871d3cc 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x2593fbe3f6a0dba172e5029b4f18c6b1bbd21ab484b6a5a1dbe6c158481daff7112264802021-10-14 8:50:57309 days 14 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x2593fbe3f6a0dba172e5029b4f18c6b1bbd21ab484b6a5a1dbe6c158481daff7112264802021-10-14 8:50:57309 days 14 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0xc1a30be8379cf4cf6b5e10ad0831d0e57e1990ac3adc72fd74551fe257e73e28112264692021-10-14 8:47:24309 days 14 hrs ago 0x5d3c244697b9c53516471371111661fdb871d3cc 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0xc1a30be8379cf4cf6b5e10ad0831d0e57e1990ac3adc72fd74551fe257e73e28112264692021-10-14 8:47:24309 days 14 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0xc1a30be8379cf4cf6b5e10ad0831d0e57e1990ac3adc72fd74551fe257e73e28112264692021-10-14 8:47:24309 days 14 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x89ff3720399386d1cd1964b307e95b26539b38926e5d1ef4e0e90c2f34dea734111554682021-10-03 13:24:29320 days 9 hrs ago 0x5312f4968901ec9d4fc43d2b0e437041614b14a2 0xb9f341cd76acc598f0fd74458f0e4ffe754a7da70 Ether
0x89ff3720399386d1cd1964b307e95b26539b38926e5d1ef4e0e90c2f34dea734111554682021-10-03 13:24:29320 days 9 hrs ago 0x5312f4968901ec9d4fc43d2b0e437041614b14a2 0xd6d07f1c048bdf2b3d5d9b6c25ed1fc5348d0a700 Ether
0x89ff3720399386d1cd1964b307e95b26539b38926e5d1ef4e0e90c2f34dea734111554682021-10-03 13:24:29320 days 9 hrs ago 0x1a45ba7bb4a5a4a01eb5330c9f2fd8af47c16ebe 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x995aa2f04b6846a4133ecb62c67aa14a6dd4d65c4052a853991546e40a9f1477111025532021-09-25 6:20:29328 days 16 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x995aa2f04b6846a4133ecb62c67aa14a6dd4d65c4052a853991546e40a9f1477111025532021-09-25 6:20:29328 days 16 hrs ago 0xb42612a90d05785c005b292f635871ca28aa10e0 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x995aa2f04b6846a4133ecb62c67aa14a6dd4d65c4052a853991546e40a9f1477111025532021-09-25 6:20:29328 days 16 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x995aa2f04b6846a4133ecb62c67aa14a6dd4d65c4052a853991546e40a9f1477111025532021-09-25 6:20:29328 days 16 hrs ago 0xbb3016d47157f90907c5dc4eb8ab4bdf29a34a4e 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x995aa2f04b6846a4133ecb62c67aa14a6dd4d65c4052a853991546e40a9f1477111025532021-09-25 6:20:29328 days 16 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x4964577a877da9d8502d2a65bb50295c3fa1437e4cccc993bec5b08bdb8fe205111025512021-09-25 6:20:14328 days 16 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x4964577a877da9d8502d2a65bb50295c3fa1437e4cccc993bec5b08bdb8fe205111025512021-09-25 6:20:14328 days 16 hrs ago 0xb42612a90d05785c005b292f635871ca28aa10e0 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x4964577a877da9d8502d2a65bb50295c3fa1437e4cccc993bec5b08bdb8fe205111025512021-09-25 6:20:14328 days 16 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x4964577a877da9d8502d2a65bb50295c3fa1437e4cccc993bec5b08bdb8fe205111025512021-09-25 6:20:14328 days 16 hrs ago 0xbb3016d47157f90907c5dc4eb8ab4bdf29a34a4e 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0x4964577a877da9d8502d2a65bb50295c3fa1437e4cccc993bec5b08bdb8fe205111025512021-09-25 6:20:14328 days 16 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0xa772992ad9a51f6e3e8cfbab52c22408ae553b76f57b9910e20a3a76bb3f58e4111023872021-09-25 5:28:48328 days 17 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0xa772992ad9a51f6e3e8cfbab52c22408ae553b76f57b9910e20a3a76bb3f58e4111023872021-09-25 5:28:48328 days 17 hrs ago 0x685bde1c43f4c0b511190a4e2e66e61f59d9a7e7 0x5312f4968901ec9d4fc43d2b0e437041614b14a20 Ether
0xa772992ad9a51f6e3e8cfbab52c22408ae553b76f57b9910e20a3a76bb3f58e4111023872021-09-25 5:28:48328 days 17 hrs ago 0x5312f4968901ec9d4fc43d2b0e437041614b14a20xf6ef27d18594228a851bfdf8e3139c4f90956e9a0 Ether
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Contract Source Code Verified (Exact Match)

Contract Name:
Dev

Compiler Version
v0.5.17+commit.d19bba13

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MPL-2.0 license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2020-07-17
*/

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

pragma solidity ^0.5.0;

/**
 * @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.
	 *
	 * 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/token/ERC20/ERC20Detailed.sol

pragma solidity ^0.5.0;

/**
 * @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: 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;
	}
}

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

pragma solidity ^0.5.0;

/*
 * @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.
 */
contract Context {
	// Empty internal constructor, to prevent people from mistakenly deploying
	// an instance of this contract, which should be used via inheritance.
	constructor() internal {}

	// solhint-disable-previous-line no-empty-blocks

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

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

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

pragma solidity ^0.5.0;

/**
 * @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.
	 *
	 * _Available since v2.4.0._
	 */
	function sub(
		uint256 a,
		uint256 b,
		string memory errorMessage
	) internal pure returns (uint256) {
		require(b <= a, errorMessage);
		uint256 c = a - b;

		return c;
	}

	/**
	 * @dev Returns the multiplication of two unsigned integers, reverting on
	 * overflow.
	 *
	 * Counterpart to Solidity's `*` operator.
	 *
	 * Requirements:
	 * - Multiplication cannot overflow.
	 */
	function mul(uint256 a, uint256 b) internal pure returns (uint256) {
		// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
		// benefit is lost if 'b' is also tested.
		// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
		if (a == 0) {
			return 0;
		}

		uint256 c = a * b;
		require(c / a == b, "SafeMath: multiplication overflow");

		return c;
	}

	/**
	 * @dev Returns the integer division of two unsigned integers. Reverts on
	 * division by zero. The result is rounded towards zero.
	 *
	 * Counterpart to Solidity's `/` operator. Note: this function uses a
	 * `revert` opcode (which leaves remaining gas untouched) while Solidity
	 * uses an invalid opcode to revert (consuming all remaining gas).
	 *
	 * Requirements:
	 * - The divisor cannot be zero.
	 */
	function div(uint256 a, uint256 b) internal pure returns (uint256) {
		return div(a, b, "SafeMath: division by zero");
	}

	/**
	 * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
	 * division by zero. The result is rounded towards zero.
	 *
	 * Counterpart to Solidity's `/` operator. Note: this function uses a
	 * `revert` opcode (which leaves remaining gas untouched) while Solidity
	 * uses an invalid opcode to revert (consuming all remaining gas).
	 *
	 * Requirements:
	 * - The divisor cannot be zero.
	 *
	 * _Available since v2.4.0._
	 */
	function div(
		uint256 a,
		uint256 b,
		string memory errorMessage
	) internal pure returns (uint256) {
		// Solidity only automatically asserts when dividing by 0
		require(b > 0, errorMessage);
		uint256 c = a / b;
		// assert(a == b * c + a % b); // There is no case in which this doesn't hold

		return c;
	}

	/**
	 * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
	 * Reverts when dividing by zero.
	 *
	 * Counterpart to Solidity's `%` operator. This function uses a `revert`
	 * opcode (which leaves remaining gas untouched) while Solidity uses an
	 * invalid opcode to revert (consuming all remaining gas).
	 *
	 * Requirements:
	 * - The divisor cannot be zero.
	 */
	function mod(uint256 a, uint256 b) internal pure returns (uint256) {
		return mod(a, b, "SafeMath: modulo by zero");
	}

	/**
	 * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
	 * Reverts with custom message when dividing by zero.
	 *
	 * Counterpart to Solidity's `%` operator. This function uses a `revert`
	 * opcode (which leaves remaining gas untouched) while Solidity uses an
	 * invalid opcode to revert (consuming all remaining gas).
	 *
	 * Requirements:
	 * - The divisor cannot be zero.
	 *
	 * _Available since v2.4.0._
	 */
	function mod(
		uint256 a,
		uint256 b,
		string memory errorMessage
	) internal pure returns (uint256) {
		require(b != 0, errorMessage);
		return a % b;
	}
}

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

pragma solidity ^0.5.0;

/**
 * @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 {ERC20Mintable}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20 {
	using SafeMath for uint256;

	mapping(address => uint256) private _balances;

	mapping(address => mapping(address => uint256)) private _allowances;

	uint256 private _totalSupply;

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

	/**
	 * @dev See {IERC20-balanceOf}.
	 */
	function balanceOf(address account) public view 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 returns (bool) {
		_transfer(_msgSender(), recipient, amount);
		return true;
	}

	/**
	 * @dev See {IERC20-allowance}.
	 */
	function allowance(address owner, address spender)
		public
		view
		returns (uint256)
	{
		return _allowances[owner][spender];
	}

	/**
	 * @dev See {IERC20-approve}.
	 *
	 * Requirements:
	 *
	 * - `spender` cannot be the zero address.
	 */
	function approve(address spender, uint256 amount) public 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 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
		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
		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 {
		require(sender != address(0), "ERC20: transfer from the zero address");
		require(recipient != address(0), "ERC20: transfer to the zero address");

		_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 {
		require(account != address(0), "ERC20: mint to the zero address");

		_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 {
		require(account != address(0), "ERC20: burn from the zero address");

		_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 {
		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 Destroys `amount` tokens from `account`.`amount` is then deducted
	 * from the caller's allowance.
	 *
	 * See {_burn} and {_approve}.
	 */
	function _burnFrom(address account, uint256 amount) internal {
		_burn(account, amount);
		_approve(
			account,
			_msgSender(),
			_allowances[account][_msgSender()].sub(
				amount,
				"ERC20: burn amount exceeds allowance"
			)
		);
	}
}

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

pragma solidity ^0.5.0;

/**
 * @title Roles
 * @dev Library for managing addresses assigned to a Role.
 */
library Roles {
	struct Role {
		mapping(address => bool) bearer;
	}

	/**
	 * @dev Give an account access to this role.
	 */
	function add(Role storage role, address account) internal {
		require(!has(role, account), "Roles: account already has role");
		role.bearer[account] = true;
	}

	/**
	 * @dev Remove an account's access to this role.
	 */
	function remove(Role storage role, address account) internal {
		require(has(role, account), "Roles: account does not have role");
		role.bearer[account] = false;
	}

	/**
	 * @dev Check if an account has this role.
	 * @return bool
	 */
	function has(Role storage role, address account)
		internal
		view
		returns (bool)
	{
		require(account != address(0), "Roles: account is the zero address");
		return role.bearer[account];
	}
}

// File: @openzeppelin/contracts/access/roles/MinterRole.sol

pragma solidity ^0.5.0;

contract MinterRole is Context {
	using Roles for Roles.Role;

	event MinterAdded(address indexed account);
	event MinterRemoved(address indexed account);

	Roles.Role private _minters;

	constructor() internal {
		_addMinter(_msgSender());
	}

	modifier onlyMinter() {
		require(
			isMinter(_msgSender()),
			"MinterRole: caller does not have the Minter role"
		);
		_;
	}

	function isMinter(address account) public view returns (bool) {
		return _minters.has(account);
	}

	function addMinter(address account) public onlyMinter {
		_addMinter(account);
	}

	function renounceMinter() public {
		_removeMinter(_msgSender());
	}

	function _addMinter(address account) internal {
		_minters.add(account);
		emit MinterAdded(account);
	}

	function _removeMinter(address account) internal {
		_minters.remove(account);
		emit MinterRemoved(account);
	}
}

// File: @openzeppelin/contracts/token/ERC20/ERC20Mintable.sol

pragma solidity ^0.5.0;

/**
 * @dev Extension of {ERC20} that adds a set of accounts with the {MinterRole},
 * which have permission to mint (create) new tokens as they see fit.
 *
 * At construction, the deployer of the contract is the only minter.
 */
contract ERC20Mintable is ERC20, MinterRole {
	/**
	 * @dev See {ERC20-_mint}.
	 *
	 * Requirements:
	 *
	 * - the caller must have the {MinterRole}.
	 */
	function mint(address account, uint256 amount)
		public
		onlyMinter
		returns (bool)
	{
		_mint(account, amount);
		return true;
	}
}

// File: @openzeppelin/contracts/token/ERC20/ERC20Burnable.sol

pragma solidity ^0.5.0;

/**
 * @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).
 */
contract ERC20Burnable is Context, ERC20 {
	/**
	 * @dev Destroys `amount` tokens from the caller.
	 *
	 * See {ERC20-_burn}.
	 */
	function burn(uint256 amount) public {
		_burn(_msgSender(), amount);
	}

	/**
	 * @dev See {ERC20-_burnFrom}.
	 */
	function burnFrom(address account, uint256 amount) public {
		_burnFrom(account, amount);
	}
}

// File: contracts/src/common/interface/IGroup.sol

pragma solidity ^0.5.0;

contract IGroup {
	function isGroup(address _addr) public view returns (bool);

	function addGroup(address _addr) external;

	function getGroupKey(address _addr) internal pure returns (bytes32) {
		return keccak256(abi.encodePacked("_group", _addr));
	}
}

// File: contracts/src/common/validate/AddressValidator.sol

pragma solidity ^0.5.0;

contract AddressValidator {
	string constant errorMessage = "this is illegal address";

	function validateIllegalAddress(address _addr) external pure {
		require(_addr != address(0), errorMessage);
	}

	function validateGroup(address _addr, address _groupAddr) external view {
		require(IGroup(_groupAddr).isGroup(_addr), errorMessage);
	}

	function validateGroups(
		address _addr,
		address _groupAddr1,
		address _groupAddr2
	) external view {
		if (IGroup(_groupAddr1).isGroup(_addr)) {
			return;
		}
		require(IGroup(_groupAddr2).isGroup(_addr), errorMessage);
	}

	function validateAddress(address _addr, address _target) external pure {
		require(_addr == _target, errorMessage);
	}

	function validateAddresses(
		address _addr,
		address _target1,
		address _target2
	) external pure {
		if (_addr == _target1) {
			return;
		}
		require(_addr == _target2, errorMessage);
	}

	function validate3Addresses(
		address _addr,
		address _target1,
		address _target2,
		address _target3
	) external pure {
		if (_addr == _target1) {
			return;
		}
		if (_addr == _target2) {
			return;
		}
		require(_addr == _target3, errorMessage);
	}
}

// File: contracts/src/common/validate/UsingValidator.sol

pragma solidity ^0.5.0;

// prettier-ignore

contract UsingValidator {
	AddressValidator private _validator;

	constructor() public {
		_validator = new AddressValidator();
	}

	function addressValidator() internal view returns (AddressValidator) {
		return _validator;
	}
}

// File: contracts/src/common/lifecycle/Killable.sol

pragma solidity ^0.5.0;

contract Killable {
	address payable public _owner;

	constructor() internal {
		_owner = msg.sender;
	}

	function kill() public {
		require(msg.sender == _owner, "only owner method");
		selfdestruct(_owner);
	}
}

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

pragma solidity ^0.5.0;

/**
 * @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.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
contract Ownable is Context {
	address private _owner;

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

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

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

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

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

// File: contracts/src/common/config/AddressConfig.sol

pragma solidity ^0.5.0;

contract AddressConfig is Ownable, UsingValidator, Killable {
	address public token = 0x98626E2C9231f03504273d55f397409deFD4a093;
	address public allocator;
	address public allocatorStorage;
	address public withdraw;
	address public withdrawStorage;
	address public marketFactory;
	address public marketGroup;
	address public propertyFactory;
	address public propertyGroup;
	address public metricsGroup;
	address public metricsFactory;
	address public policy;
	address public policyFactory;
	address public policySet;
	address public policyGroup;
	address public lockup;
	address public lockupStorage;
	address public voteTimes;
	address public voteTimesStorage;
	address public voteCounter;
	address public voteCounterStorage;

	function setAllocator(address _addr) external onlyOwner {
		allocator = _addr;
	}

	function setAllocatorStorage(address _addr) external onlyOwner {
		allocatorStorage = _addr;
	}

	function setWithdraw(address _addr) external onlyOwner {
		withdraw = _addr;
	}

	function setWithdrawStorage(address _addr) external onlyOwner {
		withdrawStorage = _addr;
	}

	function setMarketFactory(address _addr) external onlyOwner {
		marketFactory = _addr;
	}

	function setMarketGroup(address _addr) external onlyOwner {
		marketGroup = _addr;
	}

	function setPropertyFactory(address _addr) external onlyOwner {
		propertyFactory = _addr;
	}

	function setPropertyGroup(address _addr) external onlyOwner {
		propertyGroup = _addr;
	}

	function setMetricsFactory(address _addr) external onlyOwner {
		metricsFactory = _addr;
	}

	function setMetricsGroup(address _addr) external onlyOwner {
		metricsGroup = _addr;
	}

	function setPolicyFactory(address _addr) external onlyOwner {
		policyFactory = _addr;
	}

	function setPolicyGroup(address _addr) external onlyOwner {
		policyGroup = _addr;
	}

	function setPolicySet(address _addr) external onlyOwner {
		policySet = _addr;
	}

	function setPolicy(address _addr) external {
		addressValidator().validateAddress(msg.sender, policyFactory);
		policy = _addr;
	}

	function setToken(address _addr) external onlyOwner {
		token = _addr;
	}

	function setLockup(address _addr) external onlyOwner {
		lockup = _addr;
	}

	function setLockupStorage(address _addr) external onlyOwner {
		lockupStorage = _addr;
	}

	function setVoteTimes(address _addr) external onlyOwner {
		voteTimes = _addr;
	}

	function setVoteTimesStorage(address _addr) external onlyOwner {
		voteTimesStorage = _addr;
	}

	function setVoteCounter(address _addr) external onlyOwner {
		voteCounter = _addr;
	}

	function setVoteCounterStorage(address _addr) external onlyOwner {
		voteCounterStorage = _addr;
	}
}

// File: contracts/src/common/config/UsingConfig.sol

pragma solidity ^0.5.0;

contract UsingConfig {
	AddressConfig private _config;

	constructor(address _addressConfig) public {
		_config = AddressConfig(_addressConfig);
	}

	function config() internal view returns (AddressConfig) {
		return _config;
	}

	function configAddress() external view returns (address) {
		return address(_config);
	}
}

// File: contracts/src/common/libs/Decimals.sol

pragma solidity ^0.5.0;

library Decimals {
	using SafeMath for uint256;
	uint120 private constant basisValue = 1000000000000000000;

	function outOf(uint256 _a, uint256 _b)
		internal
		pure
		returns (uint256 result)
	{
		if (_a == 0) {
			return 0;
		}
		uint256 a = _a.mul(basisValue);
		if (a < _b) {
			return 0;
		}
		return (a.div(_b));
	}

	function mulBasis(uint256 _a) internal pure returns (uint256) {
		return _a.mul(basisValue);
	}

	function divBasis(uint256 _a) internal pure returns (uint256) {
		return _a.div(basisValue);
	}
}

// File: contracts/src/property/IProperty.sol

pragma solidity ^0.5.0;

contract IProperty {
	function author() external view returns (address);

	function withdraw(address _sender, uint256 _value) external;
}

// File: contracts/src/common/storage/EternalStorage.sol

pragma solidity ^0.5.0;

contract EternalStorage {
	address private currentOwner = msg.sender;

	mapping(bytes32 => uint256) private uIntStorage;
	mapping(bytes32 => string) private stringStorage;
	mapping(bytes32 => address) private addressStorage;
	mapping(bytes32 => bytes32) private bytesStorage;
	mapping(bytes32 => bool) private boolStorage;
	mapping(bytes32 => int256) private intStorage;

	modifier onlyCurrentOwner() {
		require(msg.sender == currentOwner, "not current owner");
		_;
	}

	function changeOwner(address _newOwner) external {
		require(msg.sender == currentOwner, "not current owner");
		currentOwner = _newOwner;
	}

	// *** Getter Methods ***
	function getUint(bytes32 _key) external view returns (uint256) {
		return uIntStorage[_key];
	}

	function getString(bytes32 _key) external view returns (string memory) {
		return stringStorage[_key];
	}

	function getAddress(bytes32 _key) external view returns (address) {
		return addressStorage[_key];
	}

	function getBytes(bytes32 _key) external view returns (bytes32) {
		return bytesStorage[_key];
	}

	function getBool(bytes32 _key) external view returns (bool) {
		return boolStorage[_key];
	}

	function getInt(bytes32 _key) external view returns (int256) {
		return intStorage[_key];
	}

	// *** Setter Methods ***
	function setUint(bytes32 _key, uint256 _value) external onlyCurrentOwner {
		uIntStorage[_key] = _value;
	}

	function setString(bytes32 _key, string calldata _value)
		external
		onlyCurrentOwner
	{
		stringStorage[_key] = _value;
	}

	function setAddress(bytes32 _key, address _value)
		external
		onlyCurrentOwner
	{
		addressStorage[_key] = _value;
	}

	function setBytes(bytes32 _key, bytes32 _value) external onlyCurrentOwner {
		bytesStorage[_key] = _value;
	}

	function setBool(bytes32 _key, bool _value) external onlyCurrentOwner {
		boolStorage[_key] = _value;
	}

	function setInt(bytes32 _key, int256 _value) external onlyCurrentOwner {
		intStorage[_key] = _value;
	}

	// *** Delete Methods ***
	function deleteUint(bytes32 _key) external onlyCurrentOwner {
		delete uIntStorage[_key];
	}

	function deleteString(bytes32 _key) external onlyCurrentOwner {
		delete stringStorage[_key];
	}

	function deleteAddress(bytes32 _key) external onlyCurrentOwner {
		delete addressStorage[_key];
	}

	function deleteBytes(bytes32 _key) external onlyCurrentOwner {
		delete bytesStorage[_key];
	}

	function deleteBool(bytes32 _key) external onlyCurrentOwner {
		delete boolStorage[_key];
	}

	function deleteInt(bytes32 _key) external onlyCurrentOwner {
		delete intStorage[_key];
	}
}

// File: contracts/src/common/storage/UsingStorage.sol

pragma solidity ^0.5.0;

contract UsingStorage is Ownable {
	address private _storage;

	modifier hasStorage() {
		require(_storage != address(0), "storage is not setted");
		_;
	}

	function eternalStorage()
		internal
		view
		hasStorage
		returns (EternalStorage)
	{
		return EternalStorage(_storage);
	}

	function getStorageAddress() external view hasStorage returns (address) {
		return _storage;
	}

	function createStorage() external onlyOwner {
		require(_storage == address(0), "storage is setted");
		EternalStorage tmp = new EternalStorage();
		_storage = address(tmp);
	}

	function setStorage(address _storageAddress) external onlyOwner {
		_storage = _storageAddress;
	}

	function changeOwner(address newOwner) external onlyOwner {
		EternalStorage(_storage).changeOwner(newOwner);
	}
}

// File: contracts/src/lockup/LockupStorage.sol

pragma solidity ^0.5.0;

contract LockupStorage is UsingStorage {
	using SafeMath for uint256;

	uint256 public constant basis = 100000000000000000000000000000000;

	//Last Block Number
	function setStorageLastBlockNumber(address _property, uint256 _value)
		internal
	{
		bytes32 key = getStorageLastBlockNumberKey(_property);
		eternalStorage().setUint(key, _value);
	}

	function getStorageLastBlockNumber(address _property)
		public
		view
		returns (uint256)
	{
		bytes32 key = getStorageLastBlockNumberKey(_property);
		return eternalStorage().getUint(key);
	}

	function getStorageLastBlockNumberKey(address _property)
		private
		pure
		returns (bytes32)
	{
		return keccak256(abi.encodePacked("_lastBlockNumber", _property));
	}

	//AllValue
	function setStorageAllValue(uint256 _value) internal {
		bytes32 key = getStorageAllValueKey();
		eternalStorage().setUint(key, _value);
	}

	function getStorageAllValue() public view returns (uint256) {
		bytes32 key = getStorageAllValueKey();
		return eternalStorage().getUint(key);
	}

	function getStorageAllValueKey() private pure returns (bytes32) {
		return keccak256(abi.encodePacked("_allValue"));
	}

	//Value
	function setStorageValue(
		address _property,
		address _sender,
		uint256 _value
	) internal {
		bytes32 key = getStorageValueKey(_property, _sender);
		eternalStorage().setUint(key, _value);
	}

	function getStorageValue(address _property, address _sender)
		public
		view
		returns (uint256)
	{
		bytes32 key = getStorageValueKey(_property, _sender);
		return eternalStorage().getUint(key);
	}

	function getStorageValueKey(address _property, address _sender)
		private
		pure
		returns (bytes32)
	{
		return keccak256(abi.encodePacked("_value", _property, _sender));
	}

	//PropertyValue
	function setStoragePropertyValue(address _property, uint256 _value)
		internal
	{
		bytes32 key = getStoragePropertyValueKey(_property);
		eternalStorage().setUint(key, _value);
	}

	function getStoragePropertyValue(address _property)
		public
		view
		returns (uint256)
	{
		bytes32 key = getStoragePropertyValueKey(_property);
		return eternalStorage().getUint(key);
	}

	function getStoragePropertyValueKey(address _property)
		private
		pure
		returns (bytes32)
	{
		return keccak256(abi.encodePacked("_propertyValue", _property));
	}

	//WithdrawalStatus
	function setStorageWithdrawalStatus(
		address _property,
		address _from,
		uint256 _value
	) internal {
		bytes32 key = getStorageWithdrawalStatusKey(_property, _from);
		eternalStorage().setUint(key, _value);
	}

	function getStorageWithdrawalStatus(address _property, address _from)
		public
		view
		returns (uint256)
	{
		bytes32 key = getStorageWithdrawalStatusKey(_property, _from);
		return eternalStorage().getUint(key);
	}

	function getStorageWithdrawalStatusKey(address _property, address _sender)
		private
		pure
		returns (bytes32)
	{
		return
			keccak256(
				abi.encodePacked("_withdrawalStatus", _property, _sender)
			);
	}

	//InterestPrice
	function setStorageInterestPrice(address _property, uint256 _value)
		internal
	{
		// The previously used function
		// This function is only used in testing
		eternalStorage().setUint(getStorageInterestPriceKey(_property), _value);
	}

	function getStorageInterestPrice(address _property)
		public
		view
		returns (uint256)
	{
		return eternalStorage().getUint(getStorageInterestPriceKey(_property));
	}

	function getStorageInterestPriceKey(address _property)
		private
		pure
		returns (bytes32)
	{
		return keccak256(abi.encodePacked("_interestTotals", _property));
	}

	//LastInterestPrice
	function setStorageLastInterestPrice(
		address _property,
		address _user,
		uint256 _value
	) internal {
		eternalStorage().setUint(
			getStorageLastInterestPriceKey(_property, _user),
			_value
		);
	}

	function getStorageLastInterestPrice(address _property, address _user)
		public
		view
		returns (uint256)
	{
		return
			eternalStorage().getUint(
				getStorageLastInterestPriceKey(_property, _user)
			);
	}

	function getStorageLastInterestPriceKey(address _property, address _user)
		private
		pure
		returns (bytes32)
	{
		return
			keccak256(
				abi.encodePacked("_lastLastInterestPrice", _property, _user)
			);
	}

	//LastSameRewardsAmountAndBlock
	function setStorageLastSameRewardsAmountAndBlock(
		uint256 _amount,
		uint256 _block
	) internal {
		uint256 record = _amount.mul(basis).add(_block);
		eternalStorage().setUint(
			getStorageLastSameRewardsAmountAndBlockKey(),
			record
		);
	}

	function getStorageLastSameRewardsAmountAndBlock()
		public
		view
		returns (uint256 _amount, uint256 _block)
	{
		uint256 record = eternalStorage().getUint(
			getStorageLastSameRewardsAmountAndBlockKey()
		);
		uint256 amount = record.div(basis);
		uint256 blockNumber = record.sub(amount.mul(basis));
		return (amount, blockNumber);
	}

	function getStorageLastSameRewardsAmountAndBlockKey()
		private
		pure
		returns (bytes32)
	{
		return keccak256(abi.encodePacked("_LastSameRewardsAmountAndBlock"));
	}

	//CumulativeGlobalRewards
	function setStorageCumulativeGlobalRewards(uint256 _value) internal {
		eternalStorage().setUint(
			getStorageCumulativeGlobalRewardsKey(),
			_value
		);
	}

	function getStorageCumulativeGlobalRewards() public view returns (uint256) {
		return eternalStorage().getUint(getStorageCumulativeGlobalRewardsKey());
	}

	function getStorageCumulativeGlobalRewardsKey()
		private
		pure
		returns (bytes32)
	{
		return keccak256(abi.encodePacked("_cumulativeGlobalRewards"));
	}

	//LastCumulativeGlobalReward
	function setStorageLastCumulativeGlobalReward(
		address _property,
		address _user,
		uint256 _value
	) internal {
		eternalStorage().setUint(
			getStorageLastCumulativeGlobalRewardKey(_property, _user),
			_value
		);
	}

	function getStorageLastCumulativeGlobalReward(
		address _property,
		address _user
	) public view returns (uint256) {
		return
			eternalStorage().getUint(
				getStorageLastCumulativeGlobalRewardKey(_property, _user)
			);
	}

	function getStorageLastCumulativeGlobalRewardKey(
		address _property,
		address _user
	) private pure returns (bytes32) {
		return
			keccak256(
				abi.encodePacked(
					"_LastCumulativeGlobalReward",
					_property,
					_user
				)
			);
	}

	//CumulativeLockedUpUnitAndBlock
	function setStorageCumulativeLockedUpUnitAndBlock(
		address _addr,
		uint256 _unit,
		uint256 _block
	) internal {
		uint256 record = _unit.mul(basis).add(_block);
		eternalStorage().setUint(
			getStorageCumulativeLockedUpUnitAndBlockKey(_addr),
			record
		);
	}

	function getStorageCumulativeLockedUpUnitAndBlock(address _addr)
		public
		view
		returns (uint256 _unit, uint256 _block)
	{
		uint256 record = eternalStorage().getUint(
			getStorageCumulativeLockedUpUnitAndBlockKey(_addr)
		);
		uint256 unit = record.div(basis);
		uint256 blockNumber = record.sub(unit.mul(basis));
		return (unit, blockNumber);
	}

	function getStorageCumulativeLockedUpUnitAndBlockKey(address _addr)
		private
		pure
		returns (bytes32)
	{
		return
			keccak256(
				abi.encodePacked("_cumulativeLockedUpUnitAndBlock", _addr)
			);
	}

	//CumulativeLockedUpValue
	function setStorageCumulativeLockedUpValue(address _addr, uint256 _value)
		internal
	{
		eternalStorage().setUint(
			getStorageCumulativeLockedUpValueKey(_addr),
			_value
		);
	}

	function getStorageCumulativeLockedUpValue(address _addr)
		public
		view
		returns (uint256)
	{
		return
			eternalStorage().getUint(
				getStorageCumulativeLockedUpValueKey(_addr)
			);
	}

	function getStorageCumulativeLockedUpValueKey(address _addr)
		private
		pure
		returns (bytes32)
	{
		return keccak256(abi.encodePacked("_cumulativeLockedUpValue", _addr));
	}

	//PendingWithdrawal
	function setStoragePendingInterestWithdrawal(
		address _property,
		address _user,
		uint256 _value
	) internal {
		eternalStorage().setUint(
			getStoragePendingInterestWithdrawalKey(_property, _user),
			_value
		);
	}

	function getStoragePendingInterestWithdrawal(
		address _property,
		address _user
	) public view returns (uint256) {
		return
			eternalStorage().getUint(
				getStoragePendingInterestWithdrawalKey(_property, _user)
			);
	}

	function getStoragePendingInterestWithdrawalKey(
		address _property,
		address _user
	) private pure returns (bytes32) {
		return
			keccak256(
				abi.encodePacked("_pendingInterestWithdrawal", _property, _user)
			);
	}

	//DIP4GenesisBlock
	function setStorageDIP4GenesisBlock(uint256 _block) internal {
		eternalStorage().setUint(getStorageDIP4GenesisBlockKey(), _block);
	}

	function getStorageDIP4GenesisBlock() public view returns (uint256) {
		return eternalStorage().getUint(getStorageDIP4GenesisBlockKey());
	}

	function getStorageDIP4GenesisBlockKey() private pure returns (bytes32) {
		return keccak256(abi.encodePacked("_dip4GenesisBlock"));
	}
}

// File: contracts/src/policy/IPolicy.sol

pragma solidity ^0.5.0;

contract IPolicy {
	function rewards(uint256 _lockups, uint256 _assets)
		external
		view
		returns (uint256);

	function holdersShare(uint256 _amount, uint256 _lockups)
		external
		view
		returns (uint256);

	function assetValue(uint256 _value, uint256 _lockups)
		external
		view
		returns (uint256);

	function authenticationFee(uint256 _assets, uint256 _propertyAssets)
		external
		view
		returns (uint256);

	function marketApproval(uint256 _agree, uint256 _opposite)
		external
		view
		returns (bool);

	function policyApproval(uint256 _agree, uint256 _opposite)
		external
		view
		returns (bool);

	function marketVotingBlocks() external view returns (uint256);

	function policyVotingBlocks() external view returns (uint256);

	function abstentionPenalty(uint256 _count) external view returns (uint256);

	function lockUpBlocks() external view returns (uint256);
}

// File: contracts/src/allocator/IAllocator.sol

pragma solidity ^0.5.0;

contract IAllocator {
	function calculateMaxRewardsPerBlock() public view returns (uint256);

	function beforeBalanceChange(
		address _property,
		address _from,
		address _to
		// solium-disable-next-line indentation
	) external;
}

// File: contracts/src/lockup/ILockup.sol

pragma solidity ^0.5.0;

contract ILockup {
	function lockup(
		address _from,
		address _property,
		uint256 _value
		// solium-disable-next-line indentation
	) external;

	function update() public;

	function cancel(address _property) external;

	function withdraw(address _property) external;

	function difference(address _property, uint256 _lastReward)
		public
		view
		returns (
			uint256 _reward,
			uint256 _holdersAmount,
			uint256 _holdersPrice,
			uint256 _interestAmount,
			uint256 _interestPrice
		);

	function next(address _property)
		public
		view
		returns (
			uint256 _holders,
			uint256 _interest,
			uint256 _holdersPrice,
			uint256 _interestPrice
		);

	function getPropertyValue(address _property)
		external
		view
		returns (uint256);

	function getAllValue() external view returns (uint256);

	function getValue(address _property, address _sender)
		external
		view
		returns (uint256);

	function calculateWithdrawableInterestAmount(
		address _property,
		address _user
	)
		public
		view
		returns (
			// solium-disable-next-line indentation
			uint256
		);

	function withdrawInterest(address _property) external;
}

// File: contracts/src/lockup/Lockup.sol

pragma solidity ^0.5.0;

// prettier-ignore

contract Lockup is ILockup, UsingConfig, UsingValidator, LockupStorage {
	using SafeMath for uint256;
	using Decimals for uint256;
	event Lockedup(address _from, address _property, uint256 _value);

	// solium-disable-next-line no-empty-blocks
	constructor(address _config) public UsingConfig(_config) {}

	function lockup(
		address _from,
		address _property,
		uint256 _value
	) external {
		addressValidator().validateAddress(msg.sender, config().token());
		addressValidator().validateGroup(_property, config().propertyGroup());
		require(_value != 0, "illegal lockup value");

		bool isWaiting = getStorageWithdrawalStatus(_property, _from) != 0;
		require(isWaiting == false, "lockup is already canceled");
		if (getStorageLastBlockNumber(_property) == 0) {
			// Set the block that has been locked-up for the first time as the starting block.
			setStorageLastBlockNumber(_property, block.number);
		}
		updatePendingInterestWithdrawal(_property, _from);
		(, uint256 last) = _calculateWithdrawableInterestAmount(
			_property,
			_from
		);
		updateLastPriceForProperty(_property, _from, last);
		updateValues(true, _from, _property, _value);
		emit Lockedup(_from, _property, _value);
	}

	function cancel(address _property) external {
		addressValidator().validateGroup(_property, config().propertyGroup());

		require(hasValue(_property, msg.sender), "dev token is not locked");
		bool isWaiting = getStorageWithdrawalStatus(_property, msg.sender) != 0;
		require(isWaiting == false, "lockup is already canceled");
		uint256 blockNumber = IPolicy(config().policy()).lockUpBlocks();
		blockNumber = blockNumber.add(block.number);
		setStorageWithdrawalStatus(_property, msg.sender, blockNumber);
	}

	function withdraw(address _property) external {
		addressValidator().validateGroup(_property, config().propertyGroup());

		require(possible(_property, msg.sender), "waiting for release");
		uint256 lockedUpValue = getStorageValue(_property, msg.sender);
		require(lockedUpValue != 0, "dev token is not locked");
		updatePendingInterestWithdrawal(_property, msg.sender);
		IProperty(_property).withdraw(msg.sender, lockedUpValue);
		updateValues(false, msg.sender, _property, lockedUpValue);
		setStorageValue(_property, msg.sender, 0);
		setStorageWithdrawalStatus(_property, msg.sender, 0);
	}

	function getCumulativeLockedUpUnitAndBlock(address _property)
		private
		view
		returns (uint256 _unit, uint256 _block)
	{
		(
			uint256 unit,
			uint256 lastBlock
		) = getStorageCumulativeLockedUpUnitAndBlock(_property);
		if (lastBlock > 0) {
			return (unit, lastBlock);
		}
		// When lastBlock is 0, CumulativeLockedUpUnitAndBlock is not saved yet so failback to AllValue or PropertyValue.
		unit = _property == address(0)
			? getStorageAllValue()
			: getStoragePropertyValue(_property);
		// Assign lastBlock as DIP4GenesisBlock because when AllValue or PropertyValue is not 0, already locked-up when started DIP4.
		lastBlock = getStorageDIP4GenesisBlock();
		return (unit, lastBlock);
	}

	function getCumulativeLockedUp(address _property)
		public
		view
		returns (
			uint256 _value,
			uint256 _unit,
			uint256 _block
		)
	{
		(uint256 unit, uint256 lastBlock) = getCumulativeLockedUpUnitAndBlock(
			_property
		);
		uint256 lastValue = getStorageCumulativeLockedUpValue(_property);
		return (
			lastValue.add(unit.mul(block.number.sub(lastBlock))),
			unit,
			lastBlock
		);
	}

	function getCumulativeLockedUpAll()
		public
		view
		returns (
			uint256 _value,
			uint256 _unit,
			uint256 _block
		)
	{
		return getCumulativeLockedUp(address(0));
	}

	function updateCumulativeLockedUp(
		bool _addition,
		address _property,
		uint256 _unit
	) private {
		address zero = address(0);
		(uint256 lastValue, uint256 lastUnit, ) = getCumulativeLockedUp(
			_property
		);
		(uint256 lastValueAll, uint256 lastUnitAll, ) = getCumulativeLockedUp(
			zero
		);
		setStorageCumulativeLockedUpValue(
			_property,
			_addition ? lastValue.add(_unit) : lastValue.sub(_unit)
		);
		setStorageCumulativeLockedUpValue(
			zero,
			_addition ? lastValueAll.add(_unit) : lastValueAll.sub(_unit)
		);
		setStorageCumulativeLockedUpUnitAndBlock(
			_property,
			_addition ? lastUnit.add(_unit) : lastUnit.sub(_unit),
			block.number
		);
		setStorageCumulativeLockedUpUnitAndBlock(
			zero,
			_addition ? lastUnitAll.add(_unit) : lastUnitAll.sub(_unit),
			block.number
		);
	}

	function update() public {
		(uint256 _nextRewards, uint256 _amount) = dry();
		setStorageCumulativeGlobalRewards(_nextRewards);
		setStorageLastSameRewardsAmountAndBlock(_amount, block.number);
	}

	function updateLastPriceForProperty(
		address _property,
		address _user,
		uint256 _lastInterest
	) private {
		setStorageLastCumulativeGlobalReward(_property, _user, _lastInterest);
		setStorageLastBlockNumber(_property, block.number);
	}

	function term(address _property)
		private
		view
		returns (uint256 begin, uint256 end)
	{
		return (getStorageLastBlockNumber(_property), block.number);
	}

	function dry()
		private
		view
		returns (uint256 _nextRewards, uint256 _amount)
	{
		uint256 rewardsAmount = IAllocator(config().allocator())
			.calculateMaxRewardsPerBlock();
		(
			uint256 lastAmount,
			uint256 lastBlock
		) = getStorageLastSameRewardsAmountAndBlock();
		uint256 lastMaxRewards = lastAmount == rewardsAmount
			? rewardsAmount
			: lastAmount;

		uint256 blocks = lastBlock > 0 ? block.number.sub(lastBlock) : 0;
		uint256 additionalRewards = lastMaxRewards.mul(blocks);
		uint256 nextRewards = getStorageCumulativeGlobalRewards().add(
			additionalRewards
		);
		return (nextRewards, rewardsAmount);
	}

	function difference(address _property, uint256 _lastReward)
		public
		view
		returns (
			uint256 _reward,
			uint256 _holdersAmount,
			uint256 _holdersPrice,
			uint256 _interestAmount,
			uint256 _interestPrice
		)
	{
		(uint256 rewards, ) = dry();
		(uint256 valuePerProperty, , ) = getCumulativeLockedUp(_property);
		(uint256 valueAll, , ) = getCumulativeLockedUpAll();
		uint256 propertyRewards = rewards.sub(_lastReward).mul(
			valuePerProperty.mulBasis().outOf(valueAll)
		);
		uint256 lockedUpPerProperty = getStoragePropertyValue(_property);
		uint256 totalSupply = ERC20Mintable(_property).totalSupply();
		uint256 holders = IPolicy(config().policy()).holdersShare(
			propertyRewards,
			lockedUpPerProperty
		);
		uint256 interest = propertyRewards.sub(holders);
		return (
			rewards,
			holders,
			holders.div(totalSupply),
			interest,
			lockedUpPerProperty > 0 ? interest.div(lockedUpPerProperty) : 0
		);
	}

	function next(address _property)
		public
		view
		returns (
			uint256 _holders,
			uint256 _interest,
			uint256 _holdersPrice,
			uint256 _interestPrice
		)
	{
		(uint256 nextRewards, ) = dry();
		(uint256 valuePerProperty, , ) = getCumulativeLockedUp(_property);
		(uint256 valueAll, , ) = getCumulativeLockedUpAll();
		uint256 share = valuePerProperty.mulBasis().outOf(valueAll);
		uint256 propertyRewards = nextRewards.mul(share);
		uint256 lockedUp = getStoragePropertyValue(_property);
		uint256 holders = IPolicy(config().policy()).holdersShare(
			propertyRewards,
			lockedUp
		);
		uint256 interest = propertyRewards.sub(holders);
		uint256 holdersPrice = holders.div(
			ERC20Mintable(_property).totalSupply()
		);
		uint256 interestPrice = lockedUp > 0 ? interest.div(lockedUp) : 0;
		return (holders, interest, holdersPrice, interestPrice);
	}

	function _calculateInterestAmount(address _property, address _user)
		private
		view
		returns (uint256 _amount, uint256 _interest)
	{
		uint256 last = getStorageLastCumulativeGlobalReward(_property, _user);
		(uint256 nextReward, , , , uint256 price) = difference(_property, last);
		uint256 lockedUpPerAccount = getStorageValue(_property, _user);
		uint256 amount = price.mul(lockedUpPerAccount);
		uint256 result = amount > 0 ? amount.divBasis().divBasis() : 0;
		return (result, nextReward);
	}

	function _calculateWithdrawableInterestAmount(
		address _property,
		address _user
	) private view returns (uint256 _amount, uint256 _reward) {
		uint256 pending = getStoragePendingInterestWithdrawal(_property, _user);
		uint256 legacy = __legacyWithdrawableInterestAmount(_property, _user);
		(uint256 amount, uint256 reward) = _calculateInterestAmount(
			_property,
			_user
		);
		uint256 withdrawableAmount = amount
			.add(pending) // solium-disable-next-line indentation
			.add(legacy);
		return (withdrawableAmount, reward);
	}

	function calculateWithdrawableInterestAmount(
		address _property,
		address _user
	) public view returns (uint256) {
		(uint256 amount, ) = _calculateWithdrawableInterestAmount(
			_property,
			_user
		);
		return amount;
	}

	function withdrawInterest(address _property) external {
		addressValidator().validateGroup(_property, config().propertyGroup());

		(uint256 value, uint256 last) = _calculateWithdrawableInterestAmount(
			_property,
			msg.sender
		);
		require(value > 0, "your interest amount is 0");
		setStoragePendingInterestWithdrawal(_property, msg.sender, 0);
		ERC20Mintable erc20 = ERC20Mintable(config().token());
		updateLastPriceForProperty(_property, msg.sender, last);
		__updateLegacyWithdrawableInterestAmount(_property, msg.sender);
		require(erc20.mint(msg.sender, value), "dev mint failed");
		update();
	}

	function updateValues(
		bool _addition,
		address _account,
		address _property,
		uint256 _value
	) private {
		if (_addition) {
			updateCumulativeLockedUp(true, _property, _value);
			addAllValue(_value);
			addPropertyValue(_property, _value);
			addValue(_property, _account, _value);
		} else {
			updateCumulativeLockedUp(false, _property, _value);
			subAllValue(_value);
			subPropertyValue(_property, _value);
		}
		update();
	}

	function getAllValue() external view returns (uint256) {
		return getStorageAllValue();
	}

	function addAllValue(uint256 _value) private {
		uint256 value = getStorageAllValue();
		value = value.add(_value);
		setStorageAllValue(value);
	}

	function subAllValue(uint256 _value) private {
		uint256 value = getStorageAllValue();
		value = value.sub(_value);
		setStorageAllValue(value);
	}

	function getValue(address _property, address _sender)
		external
		view
		returns (uint256)
	{
		return getStorageValue(_property, _sender);
	}

	function addValue(
		address _property,
		address _sender,
		uint256 _value
	) private {
		uint256 value = getStorageValue(_property, _sender);
		value = value.add(_value);
		setStorageValue(_property, _sender, value);
	}

	function hasValue(address _property, address _sender)
		private
		view
		returns (bool)
	{
		uint256 value = getStorageValue(_property, _sender);
		return value != 0;
	}

	function getPropertyValue(address _property)
		external
		view
		returns (uint256)
	{
		return getStoragePropertyValue(_property);
	}

	function addPropertyValue(address _property, uint256 _value) private {
		uint256 value = getStoragePropertyValue(_property);
		value = value.add(_value);
		setStoragePropertyValue(_property, value);
	}

	function subPropertyValue(address _property, uint256 _value) private {
		uint256 value = getStoragePropertyValue(_property);
		uint256 nextValue = value.sub(_value);
		setStoragePropertyValue(_property, nextValue);
	}

	function updatePendingInterestWithdrawal(address _property, address _user)
		private
	{
		(uint256 withdrawableAmount, ) = _calculateWithdrawableInterestAmount(
			_property,
			_user
		);
		setStoragePendingInterestWithdrawal(
			_property,
			_user,
			withdrawableAmount
		);
		__updateLegacyWithdrawableInterestAmount(_property, _user);
	}

	function possible(address _property, address _from)
		private
		view
		returns (bool)
	{
		uint256 blockNumber = getStorageWithdrawalStatus(_property, _from);
		if (blockNumber == 0) {
			return false;
		}
		if (blockNumber <= block.number) {
			return true;
		} else {
			if (IPolicy(config().policy()).lockUpBlocks() == 1) {
				return true;
			}
		}
		return false;
	}

	function __legacyWithdrawableInterestAmount(
		address _property,
		address _user
	) private view returns (uint256) {
		uint256 _last = getStorageLastInterestPrice(_property, _user);
		uint256 price = getStorageInterestPrice(_property);
		uint256 priceGap = price.sub(_last);
		uint256 lockedUpValue = getStorageValue(_property, _user);
		uint256 value = priceGap.mul(lockedUpValue);
		return value.divBasis();
	}

	function __updateLegacyWithdrawableInterestAmount(
		address _property,
		address _user
	) private {
		uint256 interestPrice = getStorageInterestPrice(_property);
		if (getStorageLastInterestPrice(_property, _user) != interestPrice) {
			setStorageLastInterestPrice(_property, _user, interestPrice);
		}
	}

	function setDIP4GenesisBlock(uint256 _block) external onlyOwner {
		setStorageDIP4GenesisBlock(_block);
	}
}

// File: contracts/src/dev/Dev.sol

pragma solidity ^0.5.0;

// prettier-ignore

// prettier-ignore

// prettier-ignore

contract Dev is
	ERC20Detailed,
	ERC20Mintable,
	ERC20Burnable,
	UsingConfig,
	UsingValidator
{
	constructor(address _config)
		public
		ERC20Detailed("Dev", "DEV", 18)
		UsingConfig(_config)
	{}

	function deposit(address _to, uint256 _amount) external returns (bool) {
		require(transfer(_to, _amount), "dev transfer failed");
		lock(msg.sender, _to, _amount);
		return true;
	}

	function depositFrom(
		address _from,
		address _to,
		uint256 _amount
	) external returns (bool) {
		require(transferFrom(_from, _to, _amount), "dev transferFrom failed");
		lock(_from, _to, _amount);
		return true;
	}

	function fee(address _from, uint256 _amount) external returns (bool) {
		addressValidator().validateGroup(msg.sender, config().marketGroup());
		_burn(_from, _amount);
		return true;
	}

	function lock(
		address _from,
		address _to,
		uint256 _amount
	) private {
		Lockup(config().lockup()).lockup(_from, _to, _amount);
	}
}

Contract ABI

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","type":"function"},{"constant":false,"inputs":[],"name":"renounceMinter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"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"}],"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)

000000000000000000000000d6d07f1c048bdf2b3d5d9b6c25ed1fc5348d0a70

-----Decoded View---------------
Arg [0] : _config (address): 0xd6d07f1c048bdf2b3d5d9b6c25ed1fc5348d0a70

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000d6d07f1c048bdf2b3d5d9b6c25ed1fc5348d0a70


Deployed ByteCode Sourcemap

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Swarm Source

bzzr://76cf9c4ffbba2ff699687a0d084ff911d578075947f3a9ca536d88c736427264
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.