Contract 0xbbba073c31bf03b8acf7c28ef0738decf3695683 6

 
 
Txn Hash
Method
Block
From
To
Value [Txn Fee]
0x631456e48ece3aac8a65c009a61ab27bee7c6cf0367d41ecf78e4ee06e29597dTransfer387629032023-02-01 0:12:023 mins agoBinance: Hot Wallet 2 IN  The Sandbox: SAND Token0 MATIC0.004434426741 120.324164038
0x4123fb8bc4ccb1025aa5f71b3e2130efded9d8b370131038b865ed4141d4f622Approve387628262023-02-01 0:09:026 mins ago0x557a5928fae76227747116ca7f7c0345046950bb IN  The Sandbox: SAND Token0 MATIC0.004600272839 94.078957005
0x905088d9fe822c04e94ab63ccfea856df0b508c18735f19b067c59bae740aa64Approve387628062023-02-01 0:08:206 mins ago0x2c4817f6530423b5c7da7cfca203ae1a9655a874 IN  The Sandbox: SAND Token0 MATIC0.004897474164 100.279990268
0xe76f4f710047990d35de9432cf738694ded650406dd3c6dfd58129b47cad72afWithdraw387628052023-02-01 0:08:187 mins ago0xe62cb01be44d849264f28c9aa50caecb512202b1 IN  The Sandbox: SAND Token0 MATIC0.003257234861 102.56746109
0xb5d5292eaeb5ad816d051e702ebf13dab0acd353b1d09d19a9a84e3d58b76bfcTransfer387627622023-02-01 0:06:368 mins ago0x0681623a424ec46e78e1dffc5c20feb6e26a8d6b IN  The Sandbox: SAND Token0 MATIC0.003555888986 110.934329145
0x632e34bfe8d987e9de2bb15bb445c7f45f61c3e598c9a27c6e032fb4d272169eTransfer387627172023-02-01 0:04:3810 mins ago0x605714f16f939701e5609f43baf6f0e1efc17515 IN  The Sandbox: SAND Token0 MATIC0.00422946645186.045214046
0x322728c8f70db297289d47acd15ac22b8968d1b21b42f2c7e5ec9c9d05303ef9Approve387627042023-02-01 0:04:1211 mins ago0x90b3a15457802ee9c4f93f6ee68b5721f4c8b859 IN  The Sandbox: SAND Token0 MATIC0.003992825372 81.656210326
0xc2712c4a22678b858b70d031965302dd79cfb8b87264393440b8daf590a393b6Transfer387626812023-02-01 0:03:2211 mins ago0x8fb65f8ebc806b728526b5c7150d358bc95928fe IN  The Sandbox: SAND Token0 MATIC0.007700457141 142.627470675
0xd2db9b30d99c831d9bf909e191619511bfdc3aaede3340d0343d991a6e572684Transfer387625912023-02-01 0:00:1015 mins ago0x9f78f022784f1be4bf68fbc002c3e7d21c7dd168 IN  The Sandbox: SAND Token0 MATIC0.002232770635 69.656536956
0x2a3caa84a60d61093010c0c6cea249c185a539ea4eb22b75382e0c212b397c25Transfer387625662023-01-31 23:59:1816 mins ago0x89c19ab36bc9b62b48446e7ef0b9f9f30b207b53 IN  The Sandbox: SAND Token0 MATIC0.002561332686 69.522085831
0xef57191a0e7c1cfe74082695f43259e412748f4fec6521b841d1fa5d9fb0d7e5Transfer387624932023-01-31 23:56:4218 mins ago0x8d73d1bfee1b5a71fd7e3f4de7f3db278571a61b IN  The Sandbox: SAND Token0 MATIC0.002448768275 76.423702496
0xde991770118aad3d0b8bc56e5a6e731997917e95ab374ec313960d4f8138dda8Transfer387624632023-01-31 23:55:3819 mins ago0x29e185fc67aa82898de4c16c09dc82363d0dc38a IN  The Sandbox: SAND Token0 MATIC0.003601353123 97.75129265
0x37929e3fcd43394fdc756872f56be5dcf066732a84067b3c0b2c7fa88173d1f7Approve387624092023-01-31 23:53:4421 mins ago0xc7330e0ab99a67030e0f4ff88eec435c154f209e IN  The Sandbox: SAND Token0 MATIC0.004452865836 91.064375562
0xd0a87be8fe45a2507f3c3f6ecd383ae6569e1ff4064227a53878cba4977f840aTransfer387622752023-01-31 23:48:2826 mins agoBinance: Hot Wallet 2 IN  The Sandbox: SAND Token0 MATIC0.004942982836 91.635142121
0x847566cdd3bd45e1183ee250283398cf27dbd39063235cc2d5b79b0814113a3dApprove387622212023-01-31 23:46:2028 mins ago0xa186f0fc9dbf4d064c12dcd9524e61efb703c5dd IN  The Sandbox: SAND Token0 MATIC0.003825989402 78.244292243
0x9a9cc174cc31216a0edd7dc942562750fa12e172dd1686d751a94d762727afb0Transfer387620632023-01-31 23:40:1235 mins ago0x3ba9420fd3bf8509c44999af78dfdd0fd6272208 IN  The Sandbox: SAND Token0 MATIC0.002139932043 66.760218505
0x7623bacc9a61da849e52956fd51307a897ce29659e80589a2d9869e128ee8ff2Transfer387620632023-01-31 23:40:1235 mins ago0x12598586d13d248984fe38bf8d70af6503fdc5f5 IN  The Sandbox: SAND Token0 MATIC0.00215728600767.251262788
0x1a10ea9e2b9cbcd6de5551bb3c1e8507b23b9863287901c08433d8392916abbdApprove387620502023-01-31 23:39:4635 mins ago0x30e0d21524ac46eb85a606b0d1524f42f7c085db IN  The Sandbox: SAND Token0 MATIC0.003328778053 68.159589937
0x62776542d481eedd28989a1e9109803bf4a4f25f01f8f32adeaa748d4436ad18Approve387620412023-01-31 23:39:2635 mins ago0xcdacbf082a7e31fd2bbe3699b87f8bd3a58f8071 IN  The Sandbox: SAND Token0 MATIC0.003409577852 69.814035224
0xcd343c2b0c69131baf143126e1226fbf0436953ca1b4ce31faba0d8867509e3dTransfer387620352023-01-31 23:39:1436 mins agoBinance: Hot Wallet 2 IN  The Sandbox: SAND Token0 MATIC0.004953751073 91.793927169
0x2210e02684d213224ace7d6b9d69f7fecf9b8259b7b25ac79342d976b8b37835Transfer387620192023-01-31 23:38:4036 mins ago0x17ac0261249a5dd299ea3f4bce4f0b82cfcb9627 IN  The Sandbox: SAND Token0 MATIC0.002365653878 73.829782121
0xb9f66056a4f0e7d84d736f1ad22ab3749a552832750644d59a2ec39d5b989c37Approve387620152023-01-31 23:38:3036 mins ago0x89c5cca015f576117c61efa8a4dd09b2976f9091 IN  The Sandbox: SAND Token0 MATIC0.003550944794 73.067714603
0x8b72944cb6dd3fb271523102798b9b5a3291758728c305ad146ae8586b9e3212Approve387619812023-01-31 23:37:1838 mins ago0xc2d08cc0c120c18fbe497bc0382e55f626571aec IN  The Sandbox: SAND Token0 MATIC0.004245599788 86.932302472
0x5dedc48e32e4d0b1ad62b32ecc8af31acec9902f9020bab1c503c99834072ed4Transfer387619682023-01-31 23:36:5238 mins ago0x33ff42d64eb9180e8337dd48e74a63534938a03c IN  The Sandbox: SAND Token0 MATIC0.003009691435 93.929574782
0xdb8182a51b62bbf72d0ef7c6b289ab25a1efa6fee0f1ad7f74856ed9c981ec26Approve387619622023-01-31 23:36:2838 mins ago0x3608f46fd9bef52b998e6382876dc57126f51122 IN  The Sandbox: SAND Token0 MATIC0.004210741556 86.218550245
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OVERVIEW

The Sandbox is a virtual world where players can build, own, and monetize their gaming experiences in the Ethereum blockchain using SAND, the platform’s utility token.

Latest 9 internal transactions
Parent Txn Hash Block From To Value
0xb77cc49bfaa0a0829e3df44e2614c6d803a6e29e9340fc17c119313df653b8c3352464752022-11-05 21:20:0587 days 2 hrs ago 0xee578e0e4a1400790e9d2ffc1b133e074bbdb4e1 The Sandbox: SAND Token0.000155430321818793 MATIC
0x2f3edf1c053fc4919d187ee11d94a4386ce414dd10e96d797b0bf209eafa59bb352461172022-11-05 21:07:4587 days 3 hrs ago 0xee578e0e4a1400790e9d2ffc1b133e074bbdb4e1 The Sandbox: SAND Token0.0001485439592887 MATIC
0x641edb4e3dae7049fe158df12a6e0fd881a99bce2dfe800fcf1b9431069840ca307855212022-07-16 11:32:31199 days 12 hrs ago 0xee578e0e4a1400790e9d2ffc1b133e074bbdb4e1 The Sandbox: SAND Token0.00012192976375465 MATIC
0x25f32c8577bb13948128f386c756e32f2d0548028dc4be0a1c17c5e34e065c8d290209552022-06-01 5:22:22244 days 18 hrs ago 0xee578e0e4a1400790e9d2ffc1b133e074bbdb4e1 The Sandbox: SAND Token0.000104823425730183 MATIC
0x4143503cb6b62a68c835ee3b0b5400b48be3deeedfa7b5bd4e60fe531b060e56273576292022-04-20 9:51:42286 days 14 hrs ago 0xee578e0e4a1400790e9d2ffc1b133e074bbdb4e1 The Sandbox: SAND Token0.000037228759852489 MATIC
0xdfadee232e1c9345a2a6b488e3b8efe9ef3796d563fc6d5b9cf450e548c1ca6b250320772022-02-17 2:30:35348 days 21 hrs ago 0xee578e0e4a1400790e9d2ffc1b133e074bbdb4e1 The Sandbox: SAND Token0.000036956203508053 MATIC
0x9f46a0a6e9f6306359294d1a2df9f2ab4b3fc2471dbfccf46c3c05b64bf1809f247241142022-02-09 5:56:17356 days 18 hrs ago 0xee578e0e4a1400790e9d2ffc1b133e074bbdb4e1 The Sandbox: SAND Token0.000000328125297854 MATIC
0xa86680351c6ea6a91726a2793a1d2bfdc14a08b973e90abcc162bbc719e1b3d0242951102022-01-29 7:05:44367 days 17 hrs ago 0xee578e0e4a1400790e9d2ffc1b133e074bbdb4e1 The Sandbox: SAND Token0.000000164889402342 MATIC
0xbdd45836e860d9fb38b1c5d1406b9a1d3b45c9feab8988db0390db5a59f414a5242948072022-01-29 6:48:54367 days 17 hrs ago 0xee578e0e4a1400790e9d2ffc1b133e074bbdb4e1 The Sandbox: SAND Token0.000000068861371806 MATIC
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Contract Source Code Verified (Exact Match)

Contract Name:
PolygonSand

Compiler Version
v0.8.2+commit.661d1103

Optimization Enabled:
Yes with 2000 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 13 : PolygonSand.sol
//SPDX-License-Identifier: MIT
// solhint-disable-next-line compiler-version
pragma solidity 0.8.2;

import "@openzeppelin/contracts-0.8/access/Ownable.sol";
import "../../../common/BaseWithStorage/ERC2771Handler.sol";
import "../../../Sand/SandBaseToken.sol";

contract PolygonSand is SandBaseToken, Ownable, ERC2771Handler {
    address public childChainManagerProxy;

    constructor(
        address _childChainManagerProxy,
        address trustedForwarder,
        address sandAdmin,
        address executionAdmin
    ) SandBaseToken(sandAdmin, executionAdmin, address(0), 0) {
        require(_childChainManagerProxy != address(0), "Bad ChildChainManagerProxy address");
        childChainManagerProxy = _childChainManagerProxy;
        __ERC2771Handler_initialize(trustedForwarder);
    }

    /// @notice update the ChildChainManager Proxy address
    /// @param newChildChainManagerProxy address of the new childChainManagerProxy
    function updateChildChainManager(address newChildChainManagerProxy) external onlyOwner {
        require(newChildChainManagerProxy != address(0), "Bad ChildChainManagerProxy address");
        childChainManagerProxy = newChildChainManagerProxy;
    }

    /// @notice called when tokens are deposited on root chain
    /// @param user user address for whom deposit is being done
    /// @param depositData abi encoded amount
    function deposit(address user, bytes calldata depositData) external {
        require(_msgSender() == childChainManagerProxy, "You're not allowed to deposit");
        uint256 amount = abi.decode(depositData, (uint256));
        _mint(user, amount);
    }

    /// @notice called when user wants to withdraw tokens back to root chain
    /// @dev Should burn user's tokens. This transaction will be verified when exiting on root chain
    /// @param amount amount to withdraw
    function withdraw(uint256 amount) external {
        _burn(_msgSender(), amount);
    }

    function setTrustedForwarder(address trustedForwarder) external onlyOwner {
        _trustedForwarder = trustedForwarder;
    }

    function _msgSender() internal view override(Context, ERC2771Handler) returns (address sender) {
        return ERC2771Handler._msgSender();
    }

    function _msgData() internal view override(Context, ERC2771Handler) returns (bytes calldata) {
        return ERC2771Handler._msgData();
    }
}

File 2 of 13 : Ownable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../utils/Context.sol";
/**
 * @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.
 */
abstract 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 () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual 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 virtual 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 virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

File 3 of 13 : ERC2771Handler.sol
// SPDX-License-Identifier: MIT
// solhint-disable-next-line compiler-version
pragma solidity ^0.8.0;

/// @dev minimal ERC2771 handler to keep bytecode-size down.
/// based on: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/metatx/ERC2771Context.sol

contract ERC2771Handler {
    address internal _trustedForwarder;

    function __ERC2771Handler_initialize(address forwarder) internal {
        _trustedForwarder = forwarder;
    }

    function isTrustedForwarder(address forwarder) public view returns (bool) {
        return forwarder == _trustedForwarder;
    }

    function getTrustedForwarder() external view returns (address trustedForwarder) {
        return _trustedForwarder;
    }

    function _msgSender() internal view virtual returns (address sender) {
        if (isTrustedForwarder(msg.sender)) {
            // The assembly code is more direct than the Solidity version using `abi.decode`.
            // solhint-disable-next-line no-inline-assembly
            assembly {
                sender := shr(96, calldataload(sub(calldatasize(), 20)))
            }
        } else {
            return msg.sender;
        }
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        if (isTrustedForwarder(msg.sender)) {
            return msg.data[:msg.data.length - 20];
        } else {
            return msg.data;
        }
    }
}

File 4 of 13 : SandBaseToken.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.2;

import "../common/BaseWithStorage/ERC20/extensions/ERC20BasicApproveExtension.sol";
import "../common/BaseWithStorage/ERC20/ERC20BaseToken.sol";

contract SandBaseToken is ERC20BaseToken, ERC20BasicApproveExtension {
    constructor(
        address sandAdmin,
        address executionAdmin,
        address beneficiary,
        uint256 amount
    ) ERC20BaseToken("SAND", "SAND", sandAdmin, executionAdmin) {
        _admin = sandAdmin;
        if (beneficiary != address(0)) {
            uint256 initialSupply = amount * (1 ether);
            _mint(beneficiary, initialSupply);
        }
    }
}

File 5 of 13 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/*
 * @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 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) {
        return msg.sender;
    }

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

File 6 of 13 : ERC20BasicApproveExtension.sol
//SPDX-License-Identifier: MIT

pragma solidity 0.8.2;

import "@openzeppelin/contracts-0.8/utils/Context.sol";
import "./ERC20Internal.sol";
import "../../../Libraries/BytesUtil.sol";

abstract contract ERC20BasicApproveExtension is ERC20Internal, Context {
    /// @notice Approve `target` to spend `amount` and call it with data.
    /// @param target The address to be given rights to transfer and destination of the call.
    /// @param amount The number of tokens allowed.
    /// @param data The bytes for the call.
    /// @return The data of the call.
    function approveAndCall(
        address target,
        uint256 amount,
        bytes calldata data
    ) external payable returns (bytes memory) {
        require(BytesUtil.doFirstParamEqualsAddress(data, _msgSender()), "FIRST_PARAM_NOT_SENDER");

        _approveFor(_msgSender(), target, amount);

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returnData) = target.call{value: msg.value}(data);
        require(success, string(returnData));
        return returnData;
    }

    /// @notice Temporarily approve `target` to spend `amount` and call it with data.
    /// Previous approvals remains unchanged.
    /// @param target The destination of the call, allowed to spend the amount specified
    /// @param amount The number of tokens allowed to spend.
    /// @param data The bytes for the call.
    /// @return The data of the call.
    function paidCall(
        address target,
        uint256 amount,
        bytes calldata data
    ) external payable returns (bytes memory) {
        require(BytesUtil.doFirstParamEqualsAddress(data, _msgSender()), "FIRST_PARAM_NOT_SENDER");

        if (amount > 0) {
            _addAllowanceIfNeeded(_msgSender(), target, amount);
        }

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returnData) = target.call{value: msg.value}(data);
        require(success, string(returnData));

        return returnData;
    }
}

File 7 of 13 : ERC20BaseToken.sol
//SPDX-License-Identifier: MIT
pragma solidity 0.8.2;

import "@openzeppelin/contracts-0.8/utils/Context.sol";
import "./extensions/ERC20Internal.sol";
import "../../interfaces/IERC20Extended.sol";
import "../WithSuperOperators.sol";

abstract contract ERC20BaseToken is WithSuperOperators, IERC20, IERC20Extended, ERC20Internal, Context {
    string internal _name;
    string internal _symbol;
    address internal immutable _operator;
    uint256 internal _totalSupply;
    mapping(address => uint256) internal _balances;
    mapping(address => mapping(address => uint256)) internal _allowances;

    constructor(
        string memory tokenName,
        string memory tokenSymbol,
        address admin,
        address operator
    ) {
        _name = tokenName;
        _symbol = tokenSymbol;
        _admin = admin;
        _operator = operator;
    }

    /// @notice Transfer `amount` tokens to `to`.
    /// @param to The recipient address of the tokens being transfered.
    /// @param amount The number of tokens being transfered.
    /// @return success Whether or not the transfer succeeded.
    function transfer(address to, uint256 amount) external override returns (bool success) {
        _transfer(_msgSender(), to, amount);
        return true;
    }

    /// @notice Transfer `amount` tokens from `from` to `to`.
    /// @param from The origin address  of the tokens being transferred.
    /// @param to The recipient address of the tokensbeing  transfered.
    /// @param amount The number of tokens transfered.
    /// @return success Whether or not the transfer succeeded.
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external override returns (bool success) {
        if (_msgSender() != from && !_superOperators[_msgSender()] && _msgSender() != _operator) {
            uint256 currentAllowance = _allowances[from][_msgSender()];
            if (currentAllowance != ~uint256(0)) {
                // save gas when allowance is maximal by not reducing it (see https://github.com/ethereum/EIPs/issues/717)
                require(currentAllowance >= amount, "NOT_AUTHORIZED_ALLOWANCE");
                _allowances[from][_msgSender()] = currentAllowance - amount;
            }
        }
        _transfer(from, to, amount);
        return true;
    }

    /// @notice Burn `amount` tokens.
    /// @param amount The number of tokens to burn.
    function burn(uint256 amount) external override {
        _burn(_msgSender(), amount);
    }

    /// @notice Burn `amount` tokens from `owner`.
    /// @param from The address whose token to burn.
    /// @param amount The number of tokens to burn.
    function burnFor(address from, uint256 amount) external override {
        _burn(from, amount);
    }

    /// @notice Approve `spender` to transfer `amount` tokens.
    /// @param spender The address to be given rights to transfer.
    /// @param amount The number of tokens allowed.
    /// @return success Whether or not the call succeeded.
    function approve(address spender, uint256 amount) external override returns (bool success) {
        _approveFor(_msgSender(), spender, amount);
        return true;
    }

    /// @notice Get the name of the token collection.
    /// @return The name of the token collection.
    function name() external view virtual returns (string memory) {
        //added virtual
        return _name;
    }

    /// @notice Get the symbol for the token collection.
    /// @return The symbol of the token collection.
    function symbol() external view virtual returns (string memory) {
        //added virtual
        return _symbol;
    }

    /// @notice Get the total number of tokens in existence.
    /// @return The total number of tokens in existence.
    function totalSupply() external view override returns (uint256) {
        return _totalSupply;
    }

    /// @notice Get the balance of `owner`.
    /// @param owner The address to query the balance of.
    /// @return The amount owned by `owner`.
    function balanceOf(address owner) external view override returns (uint256) {
        return _balances[owner];
    }

    /// @notice Get the allowance of `spender` for `owner`'s tokens.
    /// @param owner The address whose token is allowed.
    /// @param spender The address allowed to transfer.
    /// @return remaining The amount of token `spender` is allowed to transfer on behalf of `owner`.
    function allowance(address owner, address spender) external view override returns (uint256 remaining) {
        return _allowances[owner][spender];
    }

    /// @notice Get the number of decimals for the token collection.
    /// @return The number of decimals.
    function decimals() external pure virtual returns (uint8) {
        return uint8(18);
    }

    /// @notice Approve `spender` to transfer `amount` tokens from `owner`.
    /// @param owner The address whose token is allowed.
    /// @param spender The address to be given rights to transfer.
    /// @param amount The number of tokens allowed.
    /// @return success Whether or not the call succeeded.
    function approveFor(
        address owner,
        address spender,
        uint256 amount
    ) public override returns (bool success) {
        require(_msgSender() == owner || _superOperators[_msgSender()] || _msgSender() == _operator, "NOT_AUTHORIZED");
        _approveFor(owner, spender, amount);
        return true;
    }

    /// @notice Increase the allowance for the spender if needed
    /// @param owner The address of the owner of the tokens
    /// @param spender The address wanting to spend tokens
    /// @param amountNeeded The amount requested to spend
    /// @return success Whether or not the call succeeded.
    function addAllowanceIfNeeded(
        address owner,
        address spender,
        uint256 amountNeeded
    ) public returns (bool success) {
        require(_msgSender() == owner || _superOperators[_msgSender()] || _msgSender() == _operator, "INVALID_SENDER");
        _addAllowanceIfNeeded(owner, spender, amountNeeded);
        return true;
    }

    /// @dev See addAllowanceIfNeeded.
    function _addAllowanceIfNeeded(
        address owner,
        address spender,
        uint256 amountNeeded /*(ERC20Internal, ERC20ExecuteExtension, ERC20BasicApproveExtension)*/
    ) internal virtual override {
        if (amountNeeded > 0 && !isSuperOperator(spender) && spender != _operator) {
            uint256 currentAllowance = _allowances[owner][spender];
            if (currentAllowance < amountNeeded) {
                _approveFor(owner, spender, amountNeeded);
            }
        }
    }

    /// @dev See approveFor.
    function _approveFor(
        address owner,
        address spender,
        uint256 amount /*(ERC20BasicApproveExtension, ERC20Internal)*/
    ) internal virtual override {
        require(owner != address(0) && spender != address(0), "INVALID_OWNER_||_SPENDER");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /// @dev See transfer.
    function _transfer(
        address from,
        address to,
        uint256 amount /*(ERC20Internal, ERC20ExecuteExtension)*/
    ) internal virtual override {
        require(to != address(0), "NOT_TO_ZEROADDRESS");
        require(to != address(this), "NOT_TO_THIS");
        uint256 currentBalance = _balances[from];
        require(currentBalance >= amount, "INSUFFICIENT_FUNDS");
        _balances[from] = currentBalance - amount;
        _balances[to] += amount;
        emit Transfer(from, to, amount);
    }

    /// @dev Mint tokens for a recipient.
    /// @param to The recipient address.
    /// @param amount The number of token to mint.
    function _mint(address to, uint256 amount) internal {
        require(to != address(0), "NOT_TO_ZEROADDRESS");
        require(amount > 0, "MINT_O_TOKENS");
        uint256 currentTotalSupply = _totalSupply;
        uint256 newTotalSupply = currentTotalSupply + amount;
        require(newTotalSupply > currentTotalSupply, "OVERFLOW");
        _totalSupply = newTotalSupply;
        _balances[to] += amount;
        emit Transfer(address(0), to, amount);
    }

    /// @dev Burn tokens from an address.
    /// @param from The address whose tokens to burn.
    /// @param amount The number of token to burn.
    function _burn(address from, uint256 amount) internal {
        require(amount > 0, "BURN_O_TOKENS");
        if (_msgSender() != from && !_superOperators[_msgSender()] && _msgSender() != _operator) {
            uint256 currentAllowance = _allowances[from][_msgSender()];
            if (currentAllowance != ~uint256(0)) {
                // save gas when allowance is maximal by not reducing it (see https://github.com/ethereum/EIPs/issues/717)
                require(currentAllowance >= amount, "INSUFFICIENT_ALLOWANCE");
                _allowances[from][_msgSender()] = currentAllowance - amount;
            }
        }

        uint256 currentBalance = _balances[from];
        require(currentBalance >= amount, "INSUFFICIENT_FUNDS");
        _balances[from] = currentBalance - amount;
        _totalSupply -= amount;
        emit Transfer(from, address(0), amount);
    }
}

File 8 of 13 : ERC20Internal.sol
//SPDX-License-Identifier: MIT
pragma solidity 0.8.2;

abstract contract ERC20Internal {
    function _approveFor(
        address owner,
        address target,
        uint256 amount
    ) internal virtual;

    function _addAllowanceIfNeeded(
        address owner,
        address spender,
        uint256 amountNeeded
    ) internal virtual;

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual;
}

File 9 of 13 : BytesUtil.sol
//SPDX-License-Identifier: MIT
pragma solidity 0.8.2;

library BytesUtil {
    uint256 private constant DATA_MIN_LENGTH = 68;

    /// @dev Check if the data == _address.
    /// @param data The bytes passed to the function.
    /// @param _address The address to compare to.
    /// @return Whether the first param == _address.
    function doFirstParamEqualsAddress(bytes memory data, address _address) internal pure returns (bool) {
        if (data.length < DATA_MIN_LENGTH) {
            return false;
        }
        uint256 value;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            value := mload(add(data, 36))
        }
        return value == uint256(uint160(_address));
    }
}

File 10 of 13 : IERC20Extended.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.2;

import "./IERC20.sol";

interface IERC20Extended is IERC20 {
    function burnFor(address from, uint256 amount) external;

    function burn(uint256 amount) external;

    function approveFor(
        address owner,
        address spender,
        uint256 amount
    ) external returns (bool success);
}

File 11 of 13 : WithSuperOperators.sol
//SPDX-License-Identifier: MIT
// solhint-disable-next-line compiler-version
pragma solidity 0.8.2;

import "./WithAdmin.sol";

contract WithSuperOperators is WithAdmin {
    mapping(address => bool) internal _superOperators;

    event SuperOperator(address superOperator, bool enabled);

    /// @notice Enable or disable the ability of `superOperator` to transfer tokens of all (superOperator rights).
    /// @param superOperator address that will be given/removed superOperator right.
    /// @param enabled set whether the superOperator is enabled or disabled.
    function setSuperOperator(address superOperator, bool enabled) external {
        require(msg.sender == _admin, "only admin is allowed to add super operators");
        _superOperators[superOperator] = enabled;
        emit SuperOperator(superOperator, enabled);
    }

    /// @notice check whether address `who` is given superOperator rights.
    /// @param who The address to query.
    /// @return whether the address has superOperator rights.
    function isSuperOperator(address who) public view returns (bool) {
        return _superOperators[who];
    }
}

File 12 of 13 : IERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.2;

/// @dev see https://eips.ethereum.org/EIPS/eip-20
interface IERC20 {
    /// @notice emitted when tokens are transfered from one address to another.
    /// @param from address from which the token are transfered from (zero means tokens are minted).
    /// @param to destination address which the token are transfered to (zero means tokens are burnt).
    /// @param value amount of tokens transferred.
    event Transfer(address indexed from, address indexed to, uint256 value);

    /// @notice emitted when owner grant transfer rights to another address
    /// @param owner address allowing its token to be transferred.
    /// @param spender address allowed to spend on behalf of `owner`
    /// @param value amount of tokens allowed.
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /// @notice return the current total amount of tokens owned by all holders.
    /// @return supply total number of tokens held.
    function totalSupply() external view returns (uint256 supply);

    /// @notice return the number of tokens held by a particular address.
    /// @param who address being queried.
    /// @return balance number of token held by that address.
    function balanceOf(address who) external view returns (uint256 balance);

    /// @notice transfer tokens to a specific address.
    /// @param to destination address receiving the tokens.
    /// @param value number of tokens to transfer.
    /// @return success whether the transfer succeeded.
    function transfer(address to, uint256 value) external returns (bool success);

    /// @notice transfer tokens from one address to another.
    /// @param from address tokens will be sent from.
    /// @param to destination address receiving the tokens.
    /// @param value number of tokens to transfer.
    /// @return success whether the transfer succeeded.
    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool success);

    /// @notice approve an address to spend on your behalf.
    /// @param spender address entitled to transfer on your behalf.
    /// @param value amount allowed to be transfered.
    /// @param success whether the approval succeeded.
    function approve(address spender, uint256 value) external returns (bool success);

    /// @notice return the current allowance for a particular owner/spender pair.
    /// @param owner address allowing spender.
    /// @param spender address allowed to spend.
    /// @return amount number of tokens `spender` can spend on behalf of `owner`.
    function allowance(address owner, address spender) external view returns (uint256 amount);
}

File 13 of 13 : WithAdmin.sol
//SPDX-License-Identifier: MIT
// solhint-disable-next-line compiler-version
pragma solidity 0.8.2;

contract WithAdmin {
    address internal _admin;

    /// @dev Emits when the contract administrator is changed.
    /// @param oldAdmin The address of the previous administrator.
    /// @param newAdmin The address of the new administrator.
    event AdminChanged(address oldAdmin, address newAdmin);

    modifier onlyAdmin() {
        require(msg.sender == _admin, "ADMIN_ONLY");
        _;
    }

    /// @dev Get the current administrator of this contract.
    /// @return The current administrator of this contract.
    function getAdmin() external view returns (address) {
        return _admin;
    }

    /// @dev Change the administrator to be `newAdmin`.
    /// @param newAdmin The address of the new administrator.
    function changeAdmin(address newAdmin) external {
        require(msg.sender == _admin, "ADMIN_ACCESS_DENIED");
        emit AdminChanged(_admin, newAdmin);
        _admin = newAdmin;
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

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","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"paidCall","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"superOperator","type":"address"},{"internalType":"bool","name":"enabled","type":"bool"}],"name":"setSuperOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"trustedForwarder","type":"address"}],"name":"setTrustedForwarder","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":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newChildChainManagerProxy","type":"address"}],"name":"updateChildChainManager","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

000000000000000000000000a6fa4fb5f76172d178d61b04b0ecd319c5d1c0aa00000000000000000000000086c80a8aa58e0a4fa09a69624c31ab2a6cad56b8000000000000000000000000e75ce341c98400a45f579e32c95ff49681fc93fa000000000000000000000000e75ce341c98400a45f579e32c95ff49681fc93fa

-----Decoded View---------------
Arg [0] : _childChainManagerProxy (address): 0xa6fa4fb5f76172d178d61b04b0ecd319c5d1c0aa
Arg [1] : trustedForwarder (address): 0x86c80a8aa58e0a4fa09a69624c31ab2a6cad56b8
Arg [2] : sandAdmin (address): 0xe75ce341c98400a45f579e32c95ff49681fc93fa
Arg [3] : executionAdmin (address): 0xe75ce341c98400a45f579e32c95ff49681fc93fa

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000a6fa4fb5f76172d178d61b04b0ecd319c5d1c0aa
Arg [1] : 00000000000000000000000086c80a8aa58e0a4fa09a69624c31ab2a6cad56b8
Arg [2] : 000000000000000000000000e75ce341c98400a45f579e32c95ff49681fc93fa
Arg [3] : 000000000000000000000000e75ce341c98400a45f579e32c95ff49681fc93fa


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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