Contract 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed2

Contract Overview

Balance:
0 BNB
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Value [Txn Fee]
0xb740627ef467f0ed43a82f7fc8aeb506708850aa1d2bbf734a74ed6686ea4b98Transfer101525322021-06-29 8:24:29204 days 14 hrs ago0xf420c822e7849a71d06f6ab6c0a4d1a043faa26e IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00027643
0x23fd723d8397347b14e8d9edf9b31b3586e112feb8b441f70d6bf562d7d81c38Approve99864972021-06-23 14:00:31210 days 8 hrs ago0xf420c822e7849a71d06f6ab6c0a4d1a043faa26e IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.000577291
0x222080d6b59028126e8520d393e06c0e95a88e41ad62e48856ba355d317be644Transfer92327602021-05-28 8:58:11236 days 13 hrs ago0xca6a2d72869f69b0086105b2e8242463d4fe70af IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00036115
0x7657ed143947801d8ea7f82a8342acc89cf93c76f02f666753a44982bac0d89dApprove80289302021-04-16 12:42:42278 days 9 hrs ago0x89fca750687b2461d810d5efc35c43a1cd4b4af6 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0x58c3ae59e6c722efe9022a572250259f825bfe683d286df0592047a4916be2e4Approve78868562021-04-11 14:19:00283 days 8 hrs ago0x749a11f59bb5821e9bd9386a2d28a1e9d4aed185 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0x9d9bf342c457f20a1427621a5cf31ec00b638e43c9a8bd615864537f2f04d564Approve77397502021-04-06 11:43:42288 days 10 hrs ago0xca6a2d72869f69b0086105b2e8242463d4fe70af IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0x85c2d490c87c3763b85aecd5f50e32c0dfca64419e4440ebf25e70d84992d7c9Approve75403892021-03-30 13:32:12295 days 8 hrs ago0x5c9c39dfe868be7ee04edb425957be479c3dc356 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0xec19dd248537a7d2484204a1019dda71221ffee0a6d0b52c8b51d01c24753576Approve75344652021-03-30 8:36:00295 days 13 hrs ago0xfcaadfa95ad6706b528a5785a03fdb5c4e2a34af IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0xe52fe7446ebcf360d0ee693339403f4e7881c52161955fac7aed1dfa67f84bbdApprove75339852021-03-30 8:12:00295 days 14 hrs ago0x8f0750aea162b89ab39842043faca14666dfa172 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0xf4c4e748f4fd5e147bba55e2618b832c3dad6d5c5532a1a44d1df0e31e8b5eecApprove75151122021-03-29 16:28:21296 days 6 hrs ago0xd281cf7a8194c59790a17fa5247b7b46b95ce1b0 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00025207
0x819753934df498e58dd095957952eb04d212a67e5b5b1d5c0ce577cb399a9e9dApprove75151062021-03-29 16:28:03296 days 6 hrs ago0xd281cf7a8194c59790a17fa5247b7b46b95ce1b0 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0xa6fb71cf2b23334751c4208d7be6a5bb3915b01f51335fa0bd185aa992b77d87Approve75146092021-03-29 16:03:12296 days 6 hrs ago0x014e777b1ca75d2db682b7b46beaf67cb26c2687 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0xe942168d65445e2a99cb10afaf078641675e8768253cdf1090fe7cce50d1574cApprove74005822021-03-25 16:36:13300 days 5 hrs ago0xaa50da3bd10d140536dd96136a4781274c09561b IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0x0cd6ebcd3b0b02268c728c194a5c94a185224685404e02358e892c2a6755c6a1Approve73668172021-03-24 12:27:58301 days 10 hrs ago0x89fca750687b2461d810d5efc35c43a1cd4b4af6 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0xb47d8474024e62582341aea46b49b98c798caed57c8bc390bf92193588ca8c81Approve73639742021-03-24 10:05:49301 days 12 hrs ago0x89fca750687b2461d810d5efc35c43a1cd4b4af6 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00025207
0x9c99eaef868ae033f3256f2c44a513f5c19e20788383cb8e633b0dae0ed7f410Approve73639662021-03-24 10:05:25301 days 12 hrs ago0x89fca750687b2461d810d5efc35c43a1cd4b4af6 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0xd8d818265952f5d3183a3fb36806a81ac1250b11ca043e5f9db50f30e6f5cad9Approve73635502021-03-24 9:44:37301 days 12 hrs ago0xca6a2d72869f69b0086105b2e8242463d4fe70af IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0x80a31e4aad10fc28f62d8d761ea8ad5758c3c2ed30960b437ab1442791a09fa1Approve73422562021-03-23 15:59:55302 days 6 hrs ago0xca6a2d72869f69b0086105b2e8242463d4fe70af IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0xee44fea3246ae84e11c162a3f90301e2103fd4fb15ec01d9a6950e30001cfdb3Approve73371532021-03-23 11:44:46302 days 10 hrs ago0xaa50da3bd10d140536dd96136a4781274c09561b IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0xf1af7f7d942fb29deefa9d1a7e38c2fc768b46a69f52bfeaa616ed53b9e79c42Transfer73346772021-03-23 9:40:58302 days 12 hrs ago0x10bcfdad432a3faeb208b066d88f33493ce8fa29 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00072278
0x23e1940c5437854520bcc954d648d3e04a925dfd2e3f7da24e4de8cf25044949Approve73226942021-03-22 23:41:49302 days 22 hrs ago0x729af23d728ebd9c789bd405a3d2ccd2d7315cb4 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00044407
0x54ef68ede9e737ed62aa1deb8aa47cd4a969f6cd73e520b0425d2d3b886d89b0Transfer73081552021-03-22 11:34:52303 days 10 hrs ago0x10bcfdad432a3faeb208b066d88f33493ce8fa29 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00102278
0xdcac68859f99b2a20b6c59629c1ba11d86eaed79c6d3bee2b96d46c41b0e8ca1Transfer73080912021-03-22 11:31:40303 days 10 hrs ago0x10bcfdad432a3faeb208b066d88f33493ce8fa29 IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00072278
0xb678c5a2247d47d4fbe917adfd2a1fd704cb99f85184c74153bd7442f59389d0Transfer72235632021-03-19 12:38:37306 days 9 hrs ago0xaa50da3bd10d140536dd96136a4781274c09561b IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00051127
0x2778bf1a21aa12bb009bb29612ce06c06e945b74ce678ae091ac87dc136a3742Approve72184072021-03-19 8:20:49306 days 14 hrs ago0xfcaadfa95ad6706b528a5785a03fdb5c4e2a34af IN  0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB0.00088814
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Latest 25 internal transaction
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0xa525241fad5f1532588740b150337deb9a6525f0a588b134d3376448f7cb3908152287772021-12-23 17:10:1127 days 5 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xa525241fad5f1532588740b150337deb9a6525f0a588b134d3376448f7cb3908152287772021-12-23 17:10:1127 days 5 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x2427ae509db935ee320dc58b8e775845235acbf2f78593eb748dd0475c6ca07e147215142021-12-05 23:23:3144 days 23 hrs ago 0x7a61ad4004896ebada1953b7c111af37072f015d 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x2427ae509db935ee320dc58b8e775845235acbf2f78593eb748dd0475c6ca07e147215142021-12-05 23:23:3144 days 23 hrs ago 0x4fe50e866a193ae6ecc61f123d2a7a7428bd8aae 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x2427ae509db935ee320dc58b8e775845235acbf2f78593eb748dd0475c6ca07e147215142021-12-05 23:23:3144 days 23 hrs ago 0x2fa4aef296f021a0c720937e7e6c4a927f488cc7 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x2427ae509db935ee320dc58b8e775845235acbf2f78593eb748dd0475c6ca07e147215142021-12-05 23:23:3144 days 23 hrs ago 0x2fa4aef296f021a0c720937e7e6c4a927f488cc7 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x2427ae509db935ee320dc58b8e775845235acbf2f78593eb748dd0475c6ca07e147215142021-12-05 23:23:3144 days 23 hrs ago 0x4fe50e866a193ae6ecc61f123d2a7a7428bd8aae 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xfea5d65cae09d3b5e59dc670e711fa9d39ac293b3d6013a85fa860febabf4b39102442502021-07-02 14:29:15201 days 8 hrs ago 0xee17fd5b36145c5f4f1d769e74c317d6203b6633 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xfea5d65cae09d3b5e59dc670e711fa9d39ac293b3d6013a85fa860febabf4b39102442502021-07-02 14:29:15201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xfea5d65cae09d3b5e59dc670e711fa9d39ac293b3d6013a85fa860febabf4b39102442502021-07-02 14:29:15201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x614709f4e7f9a3524c2ed28624976285cd23082d5d5ec5951a8ad654453a67e0102438242021-07-02 14:07:57201 days 8 hrs ago 0x9f337dc10f14402287449de5444428a98ac63fc9 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x614709f4e7f9a3524c2ed28624976285cd23082d5d5ec5951a8ad654453a67e0102438242021-07-02 14:07:57201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x614709f4e7f9a3524c2ed28624976285cd23082d5d5ec5951a8ad654453a67e0102438242021-07-02 14:07:57201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x614709f4e7f9a3524c2ed28624976285cd23082d5d5ec5951a8ad654453a67e0102438242021-07-02 14:07:57201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x614709f4e7f9a3524c2ed28624976285cd23082d5d5ec5951a8ad654453a67e0102438242021-07-02 14:07:57201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xd742edbf726eac7b6d72b84b4f50ee43612945850390aa12695724701c86a7d8102437822021-07-02 14:05:51201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xd742edbf726eac7b6d72b84b4f50ee43612945850390aa12695724701c86a7d8102437822021-07-02 14:05:51201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xd742edbf726eac7b6d72b84b4f50ee43612945850390aa12695724701c86a7d8102437822021-07-02 14:05:51201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xd742edbf726eac7b6d72b84b4f50ee43612945850390aa12695724701c86a7d8102437822021-07-02 14:05:51201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xd742edbf726eac7b6d72b84b4f50ee43612945850390aa12695724701c86a7d8102437822021-07-02 14:05:51201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0xd742edbf726eac7b6d72b84b4f50ee43612945850390aa12695724701c86a7d8102437822021-07-02 14:05:51201 days 8 hrs ago 0x9f337dc10f14402287449de5444428a98ac63fc9 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x21d2b6af6ec8ec4d0a3f861d1fe2e3ff9fe6afa5fc69abcecac61bab57cb40bd102437692021-07-02 14:05:12201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x21d2b6af6ec8ec4d0a3f861d1fe2e3ff9fe6afa5fc69abcecac61bab57cb40bd102437692021-07-02 14:05:12201 days 8 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x9aa3bdb96edf55f08077923068923bab1bb09ec170722f55faf2f01c25eb3a22102411952021-07-02 11:56:30201 days 10 hrs ago 0x9f337dc10f14402287449de5444428a98ac63fc9 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
0x9aa3bdb96edf55f08077923068923bab1bb09ec170722f55faf2f01c25eb3a22102411952021-07-02 11:56:30201 days 10 hrs ago 0xa988fc3c1d4f6a7ae25dc164cc6541579164ee26 0xf671c33452adfb8e0f645d95d8e3c6df0d78fed20 BNB
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Contract Source Code Verified (Exact Match)

Contract Name:
AliumToken

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at BscScan.com on 2021-02-18
*/

// SPDX-License-Identifier: MIT

pragma solidity =0.6.12;

/*
 * @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 {}

    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;
    }
}

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

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

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

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

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

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public 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;
    }
}

interface IBEP20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the token decimals.
     */
    function decimals() external view returns (uint8);

    /**
     * @dev Returns the token symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the token name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the bep token owner.
     */
    function getOwner() external view returns (address);

    /**
     * @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);
}

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, 'SafeMath: addition overflow');

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, 'SafeMath: subtraction overflow');
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

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

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

        return c;
    }

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

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

        return c;
    }

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

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

    function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = x < y ? x : y;
    }

    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
    function sqrt(uint256 y) internal pure returns (uint256 z) {
        if (y > 3) {
            z = y;
            uint256 x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
}

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

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, 'Address: insufficient balance');

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{value: amount}('');
        require(success, 'Address: unable to send value, recipient may have reverted');
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, 'Address: low-level call failed');
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, 'Address: low-level call with value failed');
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, 'Address: insufficient balance for call');
        return _functionCallWithValue(target, data, value, errorMessage);
    }

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

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{value: weiValue}(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}


/**
 * @dev Implementation of the {IBEP20} 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 {BEP20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-BEP20-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 BEP20 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 {IBEP20-approve}.
 */
contract BEP20 is Context, IBEP20, Ownable {
    using SafeMath for uint256;
    using Address for address;

    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name, string memory symbol) public {
        _name = name;
        _symbol = symbol;
        _decimals = 18;
    }

    /**
     * @dev Returns the bep token owner.
     */
    function getOwner() external override view returns (address) {
        return owner();
    }

    /**
     * @dev Returns the token name.
     */
    function name() public override view returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the token decimals.
     */
    function decimals() public override view returns (uint8) {
        return _decimals;
    }

    /**
     * @dev Returns the token symbol.
     */
    function symbol() public override view returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {BEP20-totalSupply}.
     */
    function totalSupply() public override view returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {BEP20-balanceOf}.
     */
    function balanceOf(address account) public override view returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {BEP20-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 override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {BEP20-allowance}.
     */
    function allowance(address owner, address spender) public override view returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {BEP20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {BEP20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {BEP20};
     *
     * 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 override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(amount, 'BEP20: 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 {BEP20-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 {BEP20-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, 'BEP20: decreased allowance below zero')
        );
        return true;
    }

    /**
     * @dev Creates `amount` tokens and assigns them to `msg.sender`, increasing
     * the total supply.
     *
     * Requirements
     *
     * - `msg.sender` must be the token owner
     */
    function mint(uint256 amount) public onlyOwner returns (bool) {
        _mint(_msgSender(), amount);
        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), 'BEP20: transfer from the zero address');
        require(recipient != address(0), 'BEP20: transfer to the zero address');

        _balances[sender] = _balances[sender].sub(amount, 'BEP20: 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), 'BEP20: 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), 'BEP20: burn from the zero address');

        _balances[account] = _balances[account].sub(amount, 'BEP20: 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), 'BEP20: approve from the zero address');
        require(spender != address(0), 'BEP20: 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, 'BEP20: burn amount exceeds allowance')
        );
    }
}


// AliumToken with Governance.
contract AliumToken is BEP20('AliumSwap Token', 'ALM') {
    /// @notice Creates `_amount` token to `_to`. Must only be called by the owner (MasterChef).
    function mint(address _to, uint256 _amount) public onlyOwner {
        _mint(_to, _amount);
        _moveDelegates(address(0), _delegates[_to], _amount);
    }

    // Copied and modified from YAM code:
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernanceStorage.sol
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernance.sol
    // Which is copied and modified from COMPOUND:
    // https://github.com/compound-finance/compound-protocol/blob/master/contracts/Governance/Comp.sol

    /// @dev A record of each accounts delegate
    mapping (address => address) internal _delegates;

    /// @notice A checkpoint for marking number of votes from a given block
    struct Checkpoint {
        uint32 fromBlock;
        uint256 votes;
    }

    /// @notice A record of votes checkpoints for each account, by index
    mapping (address => mapping (uint32 => Checkpoint)) public checkpoints;

    /// @notice The number of checkpoints for each account
    mapping (address => uint32) public numCheckpoints;

    /// @notice The EIP-712 typehash for the contract's domain
    bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");

    /// @notice The EIP-712 typehash for the delegation struct used by the contract
    bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");

    /// @notice A record of states for signing / validating signatures
    mapping (address => uint) public nonces;

      /// @notice An event thats emitted when an account changes its delegate
    event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);

    /// @notice An event thats emitted when a delegate account's vote balance changes
    event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance);

    /**
     * @notice Delegate votes from `msg.sender` to `delegatee`
     * @param delegator The address to get delegatee for
     */
    function delegates(address delegator)
        external
        view
        returns (address)
    {
        return _delegates[delegator];
    }

   /**
    * @notice Delegate votes from `msg.sender` to `delegatee`
    * @param delegatee The address to delegate votes to
    */
    function delegate(address delegatee) external {
        return _delegate(msg.sender, delegatee);
    }

    /**
     * @notice Delegates votes from signatory to `delegatee`
     * @param delegatee The address to delegate votes to
     * @param nonce The contract state required to match the signature
     * @param expiry The time at which to expire the signature
     * @param v The recovery byte of the signature
     * @param r Half of the ECDSA signature pair
     * @param s Half of the ECDSA signature pair
     */
    function delegateBySig(
        address delegatee,
        uint nonce,
        uint expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    )
        external
    {
        bytes32 domainSeparator = keccak256(
            abi.encode(
                DOMAIN_TYPEHASH,
                keccak256(bytes(name())),
                getChainId(),
                address(this)
            )
        );

        bytes32 structHash = keccak256(
            abi.encode(
                DELEGATION_TYPEHASH,
                delegatee,
                nonce,
                expiry
            )
        );

        bytes32 digest = keccak256(
            abi.encodePacked(
                "\x19\x01",
                domainSeparator,
                structHash
            )
        );

        address signatory = ecrecover(digest, v, r, s);
        require(signatory != address(0), "ALIUM::delegateBySig: invalid signature");
        require(nonce == nonces[signatory]++, "ALIUM::delegateBySig: invalid nonce");
        require(now <= expiry, "ALIUM::delegateBySig: signature expired");
        return _delegate(signatory, delegatee);
    }

    /**
     * @notice Gets the current votes balance for `account`
     * @param account The address to get votes balance
     * @return The number of current votes for `account`
     */
    function getCurrentVotes(address account)
        external
        view
        returns (uint256)
    {
        uint32 nCheckpoints = numCheckpoints[account];
        return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0;
    }

    /**
     * @notice Determine the prior number of votes for an account as of a block number
     * @dev Block number must be a finalized block or else this function will revert to prevent misinformation.
     * @param account The address of the account to check
     * @param blockNumber The block number to get the vote balance at
     * @return The number of votes the account had as of the given block
     */
    function getPriorVotes(address account, uint blockNumber)
        external
        view
        returns (uint256)
    {
        require(blockNumber < block.number, "ALIUM::getPriorVotes: not yet determined");

        uint32 nCheckpoints = numCheckpoints[account];
        if (nCheckpoints == 0) {
            return 0;
        }

        // First check most recent balance
        if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {
            return checkpoints[account][nCheckpoints - 1].votes;
        }

        // Next check implicit zero balance
        if (checkpoints[account][0].fromBlock > blockNumber) {
            return 0;
        }

        uint32 lower = 0;
        uint32 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
            Checkpoint memory cp = checkpoints[account][center];
            if (cp.fromBlock == blockNumber) {
                return cp.votes;
            } else if (cp.fromBlock < blockNumber) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return checkpoints[account][lower].votes;
    }

    function _delegate(address delegator, address delegatee)
        internal
    {
        address currentDelegate = _delegates[delegator];
        uint256 delegatorBalance = balanceOf(delegator); // balance of underlying ALIUMs (not scaled);
        _delegates[delegator] = delegatee;

        emit DelegateChanged(delegator, currentDelegate, delegatee);

        _moveDelegates(currentDelegate, delegatee, delegatorBalance);
    }

    function _moveDelegates(address srcRep, address dstRep, uint256 amount) internal {
        if (srcRep != dstRep && amount > 0) {
            if (srcRep != address(0)) {
                // decrease old representative
                uint32 srcRepNum = numCheckpoints[srcRep];
                uint256 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0;
                uint256 srcRepNew = srcRepOld.sub(amount);
                _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew);
            }

            if (dstRep != address(0)) {
                // increase new representative
                uint32 dstRepNum = numCheckpoints[dstRep];
                uint256 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0;
                uint256 dstRepNew = dstRepOld.add(amount);
                _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew);
            }
        }
    }

    function _writeCheckpoint(
        address delegatee,
        uint32 nCheckpoints,
        uint256 oldVotes,
        uint256 newVotes
    )
        internal
    {
        uint32 blockNumber = safe32(block.number, "ALIUM::_writeCheckpoint: block number exceeds 32 bits");

        if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) {
            checkpoints[delegatee][nCheckpoints - 1].votes = newVotes;
        } else {
            checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes);
            numCheckpoints[delegatee] = nCheckpoints + 1;
        }

        emit DelegateVotesChanged(delegatee, oldVotes, newVotes);
    }

    function safe32(uint n, string memory errorMessage) internal pure returns (uint32) {
        require(n < 2**32, errorMessage);
        return uint32(n);
    }

    function getChainId() internal pure returns (uint) {
        uint256 chainId;
        assembly { chainId := chainid() }
        return chainId;
    }
}

Contract ABI

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"address","name":"fromDelegate","type":"address"},{"indexed":true,"internalType":"address","name":"toDelegate","type":"address"}],"name":"DelegateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"DelegateVotesChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DELEGATION_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint32","name":"","type":"uint32"}],"name":"checkpoints","outputs":[{"internalType":"uint32","name":"fromBlock","type":"uint32"},{"internalType":"uint256","name":"votes","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"}],"name":"delegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"delegateBySig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegator","type":"address"}],"name":"delegates","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getCurrentVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPriorVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"numCheckpoints","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Swarm Source

ipfs://6edec40820f4d1432c766e148d772919340e889c63d23d973a615aef2a5398a2
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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