Contract 0xAC51066d7bEC65Dc4589368da368b212745d63E8 12

 

Contract Overview

ALICE: ALICE Token
Balance:
0 Ether

EtherValue:
$0.00

Token:
 
Txn Hash
Method
Block
From
To
Value
0x390d8bd7a54a14a9f9f9e79f59982b507f955ae3d1d40426e8a681934e5b6a54Transfer(pending)2022-08-14 5:54:223 days 16 hrs ago0xb78d263882fbce8d5c351372824e4e0cfaa36411 IN ALICE: ALICE Token0 Ether(Pending)(Pending)
0xe903f813e79261acc2f3088777d8fb4979af6d6581229ce5af52e46dd1330e5fTransfer(pending)2022-08-14 5:07:493 days 17 hrs ago0x2a959f4be271fc4f43472fdc83062c6365593cec IN ALICE: ALICE Token0 Ether(Pending)(Pending)
0x13e0d71bec17437f2ead65efc8ce4787d70157952300bf39c8d56c08dd05c55aTransfer(pending)2022-08-14 2:31:563 days 20 hrs ago0x08fe287d2a493999c5b9c0213598e2bb030f1a35 IN ALICE: ALICE Token0 Ether(Pending)(Pending)
0xf04cca4b6da1d85ea3089b81375f1211ed381533a1cb7ece3bad6f51f0c31a48Transfer(pending)2022-08-14 2:31:563 days 20 hrs ago0x08fe287d2a493999c5b9c0213598e2bb030f1a35 IN ALICE: ALICE Token0 Ether(Pending)(Pending)
0xca3f4de9891ba9bba909f2e84403baedcb0e6f5684ed903966ca2942f38f24c4Transfer(pending)2022-08-14 2:31:563 days 20 hrs ago0x08fe287d2a493999c5b9c0213598e2bb030f1a35 IN ALICE: ALICE Token0 Ether(Pending)(Pending)
0xa13229574c97a07aaa211a26088c2f97db519a3cdea0840455c1a8085d024015Approve153606342022-08-17 19:44:332 hrs 55 mins ago0x11996842aaeb6732b26dcd4d2b2e4a299a1d3281 IN  ALICE: ALICE Token0 Ether0.‍00026521 9.‍96823077
0xc77967299f9f09dfb1778fe9ad37f25ddfa7e5c6bd5631f42cd759dbd5fccf43Approve153606332022-08-17 19:44:232 hrs 55 mins ago0x11996842aaeb6732b26dcd4d2b2e4a299a1d3281 IN  ALICE: ALICE Token0 Ether0.‍0002771 10.‍41524657
0x312208f2ad92b6df5a39b6da556fc868f6f59822b9af79e3e6fbcbf9c8f90a08Approve153606332022-08-17 19:44:232 hrs 55 mins ago0x11996842aaeb6732b26dcd4d2b2e4a299a1d3281 IN  ALICE: ALICE Token0 Ether0.‍00048437 10.‍41524657
0x46bf3db0bc7d2c08417a57b3ab843040ec7d81bb08ec0f2c5ae1046ed767df4aTransfer153605922022-08-17 19:36:153 hrs 3 mins ago0x389505f098a29a994a3ed0e674f07cd451dde42c IN  ALICE: ALICE Token0 Ether0.‍00046783 13.‍55691012
0x988665bc445eff4f6e57a4cd82c562a19cf7c0c6b629bc4f6a35970df65d1b98Transfer153604102022-08-17 18:55:383 hrs 44 mins ago0x53eb3ea47643e87e8f25dd997a37b3b5260e7336 IN  ALICE: ALICE Token0 Ether0.‍0015476429.‍98793389
0x8228288a6df3e8f6d567134660a9ae14258d69c747ddabf385bff6c6c203ebd6Transfer153602782022-08-17 18:23:144 hrs 16 mins ago0x30741289523c2e4d2a62c7d6722686d14e723851 IN  ALICE: ALICE Token0 Ether0.‍0020274358.‍7304372
0xaa07fa0e5c2f349ba994a608e2fe776f114353eb5454b2aa55a232b18c85704aTransfer153602362022-08-17 18:09:474 hrs 30 mins ago0x30741289523c2e4d2a62c7d6722686d14e723851 IN  ALICE: ALICE Token0 Ether0.‍001522344.‍1131598
0xed43530811dc2fbb59b84023ae0539769654b5cfeb03cb4a7a2094c2b5e8fb3aTransfer153599502022-08-17 17:03:195 hrs 36 mins agoBinance 14 IN  ALICE: ALICE Token0 Ether0.‍00054541 15.‍80491147
0x16d86e4bf1431c71ea7b87bf4a8915ff855c4892ffedd22a444ac143ba8c0af9Transfer153593762022-08-17 15:00:047 hrs 39 mins ago0xc86a944e0526894a1a1f8ac01a80fc9a54bf5042 IN  ALICE: ALICE Token0 Ether0.‍00040121 16.‍16765001
0xbf7d05f4dbd97dfcb71f3eaa895e33a003591dd1d45da686e49791006aa8791eTransfer153592372022-08-17 14:29:268 hrs 10 mins agoBinance 16 IN  ALICE: ALICE Token0 Ether0.‍0012225 23.‍6878585
0xab7268c047628e1fe45b1d72c80950a28c0357cdd3e8676b0ca5d257f947ef9fTransfer From153590712022-08-17 13:51:048 hrs 48 mins ago0x8ab399cbb9fdb9a36518a7e7eddf89158e56c595 IN  ALICE: ALICE Token0 Ether0.‍00114073 30.‍3557496
0x05a6ef5a8b466a141bb740d00e821d03c308486db8322e67703185530b4eef6dTransfer153590652022-08-17 13:49:038 hrs 50 mins agoBinance 15 IN  ALICE: ALICE Token0 Ether0.‍0008455 24.‍50113874
0x3594a626a2fa0508bc5ddcae20cddafc9ae50bde5665c7796d057865f537699aTransfer153590502022-08-17 13:45:298 hrs 54 mins agoBinance 14 IN  ALICE: ALICE Token0 Ether0.‍00120027 23.‍25162571
0xf6999e4c593b430ae98737398a3012c33b28277df3194e68f40ea77d5f90efa0Transfer153586092022-08-17 12:02:1810 hrs 37 mins agoBinance 16 IN  ALICE: ALICE Token0 Ether0.‍00049809 9.‍65133209
0x15df0a0c5cf2553d0494df71077d55b803d014933f9a1e190dee39b52e9e3705Transfer153586082022-08-17 12:01:4910 hrs 38 mins agoGate.io IN  ALICE: ALICE Token0 Ether0.‍0004323 8.‍3746297
0x4589accbb7d9f548db009adfa517aa569c7ae06c3fcec2a027179e34e0cdcf02Approve153585312022-08-17 11:44:2110 hrs 55 mins ago0x4377b34907c0a6654ad6a1287ff17dbc72fa0e1f IN  ALICE: ALICE Token0 Ether0.‍0003236.‍94545806
0x37f9fbe219cc8d482ef787bdfa04156ba669df6caa5910540c05275b5b058879Transfer153581602022-08-17 10:21:0312 hrs 18 mins agoCrypto.com 2 IN  ALICE: ALICE Token0 Ether0.‍000498419.‍65759112
0x90bf490322fb1daf9f7e361cfc6db66e2580a6f9d898fab6cdf32a0b07715e0dTransfer153579322022-08-17 9:23:5113 hrs 15 mins agoBinance 15 IN  ALICE: ALICE Token0 Ether0.‍00028437 5.‍51148251
0x2de4a2cff5ef274ad9a23b4211627fe852172c8e12671885ac037c9a1be1893dTransfer153572282022-08-17 6:52:3115 hrs 47 mins agoBinance 14 IN  ALICE: ALICE Token0 Ether0.‍00032202 6.‍23972759
0x441c9a28d5de623a58f5865c4ec13dd377a02286bdbe8e00d64a0a8051a04af5Transfer153568762022-08-17 5:30:0617 hrs 9 mins ago0xc86a944e0526894a1a1f8ac01a80fc9a54bf5042 IN  ALICE: ALICE Token0 Ether0.‍00012714 5.‍12352187
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OVERVIEW

My Neighbor Alice is a multiplayer builder game, where anyone can buy and own virtual islands, collect and build items and meet new friends.

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Contract Source Code Verified (Exact Match)

Contract Name:
AliceToken

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2021-07-11
*/

/**
 *Submitted for verification at Etherscan.io on 2021-03-02
*/

/**
 *Submitted for verification at Etherscan.io on 2020-09-05
*/

// File: openzeppelin-solidity/contracts/GSN/Context.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

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

// File: openzeppelin-solidity/contracts/token/ERC20/IERC20.sol

pragma solidity ^0.6.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// File: openzeppelin-solidity/contracts/math/SafeMath.sol

pragma solidity ^0.6.0;

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

        return c;
    }

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

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

        return c;
    }

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

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

        return c;
    }

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

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

        return c;
    }

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

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

// File: openzeppelin-solidity/contracts/utils/Address.sol

pragma solidity ^0.6.2;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // 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);
            }
        }
    }
}

// File: openzeppelin-solidity/contracts/token/ERC20/ERC20.sol

pragma solidity ^0.6.0;





/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20 {
    using SafeMath for uint256;
    using Address for address;

    mapping (address => uint256) private _balances;

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

    uint256 private _totalSupply;

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

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

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

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

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view returns (uint8) {
        return _decimals;
    }

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

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

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20};
     *
     * Requirements:
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.
     *
     * This is internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Sets {decimals} to a value other than the default one of 18.
     *
     * WARNING: This function should only be called from the constructor. Most
     * applications that interact with token contracts will not expect
     * {decimals} to ever change, and may work incorrectly if it does.
     */
    function _setupDecimals(uint8 decimals_) internal {
        _decimals = decimals_;
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}

// File: contracts/AliceToken.sol

pragma solidity 0.6.12;


contract AliceToken is ERC20 {
    address private _minter;

    event MinterSet(address indexed account);
    event TransferToNative(address indexed from, bytes32 indexed to, uint256 value);
    event TransferFromNative(address indexed to, bytes32 indexed refID, uint256 value);

    /**
     * @dev Constructor that gives msg.sender all of existing tokens.
     * @param minter the multi-sig contract address
     */
    constructor(address minter) public ERC20("ALICE", "ALICE") {
      _setupDecimals(6);
      _setMinter(minter);
    }

    modifier onlyMinter() {
        require(isMinter(msg.sender), "caller is not a minter");
        _;
    }
    
    function cap() public pure returns (uint256) {
      return 100_000_000_000_000; // 100 million ALICE
    }

    /**
     * @dev Burns a specific amount of tokens and emit transfer event for native chain
     * @param to The address to transfer to in the native chain.
     * @param value The amount of token to be burned.
     */
    function transferToNative(bytes32 to, uint256 value) public {
        _burn(msg.sender, value);
        emit TransferToNative(msg.sender, to, value);
    }

    /**
     * @dev Function to mint tokens
     * @param to The address that will receive the minted tokens.
     * @param value The amount of tokens to mint.
     * @return A boolean that indicates if the operation was successful.
     */
    function transferFromNative(address to, uint256 value, bytes32 refID) public onlyMinter returns (bool) {
        _mint(to, value);
        emit TransferFromNative(to, refID, value);
        return true;
    }
    
    function _mint(address account, uint256 value) override internal {
        require(totalSupply().add(value) <= cap(), "ERC20Capped: cap exceeded");
        super._mint(account, value);
    }

    function isMinter(address account) public view returns (bool) {
        return _minter == account;
    }

    function _setMinter(address account) internal {
        _minter = account;
        emit MinterSet(account);
    }
    
    function changeMinter(address newMinter) public onlyMinter {
        _setMinter(newMinter);
    }
}

Contract Security Audit

Contract ABI

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

000000000000000000000000894a1a70311cd19a3ef33a38b18eab618394d6dd

-----Decoded View---------------
Arg [0] : minter (address): 0x894a1a70311cd19a3ef33a38b18eab618394d6dd

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000894a1a70311cd19a3ef33a38b18eab618394d6dd


Deployed ByteCode Sourcemap

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Swarm Source

ipfs://9a1945593950cd4e682baee35dae92b729b1864da58e2f3f4bb10086479e2e02
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.