Contract 0xd5d86fc8d5c0ea1ac1ac5dfab6e529c9967a45e9 16

 

Contract Overview

NFT Worlds: WRLD Token
Balance:
0 MATIC

MATIC Value:
$0.00

Token:
 
Txn Hash
Method
Block
From
To
Value [Txn Fee]
0x376a2d70e117e292d59d3df6739e108f5f0e07de42250b17a146c38c863c3c3bTransfer478392302023-09-22 6:32:003 hrs 59 mins ago0xb2fe42200dbbaa5c6fab763acedd639465ab1d4b IN  NFT Worlds: WRLD Token0 MATIC0.004070340109127.269717624
0x65fcf2e28909089a8699d48f1674c91f8c0aa4633d21a262fe24bd18f8081049Transfer478352062023-09-22 4:00:096 hrs 31 mins ago0xa7045c1da5124cbb9503b641abd7eaaa65f31494 IN  NFT Worlds: WRLD Token0 MATIC0.003613383216 98.237812415
0xab7281919d2ed429fd658b420f716769b34c8c5d96b475e890537f303469c900Transfer478352062023-09-22 4:00:096 hrs 31 mins ago0xa7045c1da5124cbb9503b641abd7eaaa65f31494 IN  NFT Worlds: WRLD Token0 MATIC0.003613383216 98.237812415
0x61e66709e6bf62c6ba290f7cf9c7c828b7eb99a0d9e5151a8cefaf9a9214f0b1Transfer478352052023-09-22 4:00:076 hrs 31 mins ago0xa7045c1da5124cbb9503b641abd7eaaa65f31494 IN  NFT Worlds: WRLD Token0 MATIC0.003613383216 98.237812415
0x78b60995ec28a6bf9aa9e1aac9726323cb5002e3a3cb6473eef6aa0f2b31a913Approve478302542023-09-22 0:57:299 hrs 34 mins ago0x38c0544a3c30fcab16368f60e4cf9d17c9a4d7fc IN  NFT Worlds: WRLD Token0 MATIC0.0039376302381.009530127
0xbbe137c811ea34192fede8c1dd51dd156e4b9961a698070491e646b9bfbc398aApprove478269922023-09-21 22:59:3311 hrs 32 mins ago0x3c8c92e442677f9cf043ee404dfc55eed30a0000 IN  NFT Worlds: WRLD Token0 MATIC0.002238750395 84.166712864
0xcdcb1a8198de707185e8075aca4ebc4f800e89a63e102bf1fad705d17fd7e96bTransfer478269272023-09-21 22:57:1311 hrs 34 mins ago0xecfdd16a93fcd25f9b8c19e94b9f98029940ac3a IN  NFT Worlds: WRLD Token0 MATIC0.003335507718104.29328117
0xe3685f20c91a0619652c272e1a1e14d1c68a26ae42d6ce52195a6c8834a26b25Transfer478255832023-09-21 22:09:2912 hrs 22 mins ago0x487dcc476b99e81ab13089debf0f2cc93ef47c6e IN  NFT Worlds: WRLD Token0 MATIC0.005059490547 103.006851819
0x7444fb96677f859893be50b32f16bca0d5b5808234ace894b967f9630f17e910Approve478249802023-09-21 21:48:0812 hrs 43 mins ago0xbb29fd715172c7e09990a9f8580a5bc761b398e7 IN  NFT Worlds: WRLD Token0 MATIC0.00631891130
0x0f494c7dcea3c37fc18bb5a7a94eed6e63f53a86823469665f97524ad1a8ef80Transfer478150112023-09-21 15:54:0718 hrs 37 mins ago0x11d719d53b49443f2d5b76bf4d147aced445a51e IN  NFT Worlds: WRLD Token0 MATIC0.005504115375 188.380976624
0x23b1dbd732fb4567263ccbc81a2ee9d12d93c45ccf0d80cf256c2541bf6378f0Increase Allowan...478105632023-09-21 13:09:1721 hrs 22 mins ago0xf63bfb446ccc0119d6c644003b8f5adf8323b7ca IN  NFT Worlds: WRLD Token0 MATIC0.00719556617145.623860006
0x146205a8a760ae2c574a62743a551b4489edc8703ea7100a5bbe370313a36cc3Approve478098012023-09-21 12:40:5921 hrs 50 mins ago0xb437a90e59785740a67fc5376180acc3b705edc4 IN  NFT Worlds: WRLD Token0 MATIC0.004767101497 98.122830978
0x1dbe280e57e47f426a6c198d27b40d2f5c5dbc0f324e786d25f84987f1a718bfApprove478074142023-09-21 11:13:0123 hrs 18 mins ago0x9da0b74bb92d595dba4a0babd887aed2b9b30c7c IN  NFT Worlds: WRLD Token0 MATIC0.002178885081 81.916052535
0x39414d6297b8d9f4653f4c192de7194dd38d72e69b82145ae72601a21e0fc1f0Transfer477956832023-09-21 4:00:081 day 6 hrs ago0xa7045c1da5124cbb9503b641abd7eaaa65f31494 IN  NFT Worlds: WRLD Token0 MATIC0.003836726328 104.343930611
0xf90017255d2f3330ff6d01e76fb4dc2e25dca96e9c41ef2e6e3a35596b1c039eTransfer477956832023-09-21 4:00:081 day 6 hrs ago0xa7045c1da5124cbb9503b641abd7eaaa65f31494 IN  NFT Worlds: WRLD Token0 MATIC0.003837978455 104.343930611
0x00bc5d54d51bc0dbeed0969272b72f98984167d8d6d9f58d5133497e319d82ebTransfer477956832023-09-21 4:00:081 day 6 hrs ago0xa7045c1da5124cbb9503b641abd7eaaa65f31494 IN  NFT Worlds: WRLD Token0 MATIC0.003837978455 104.343930611
0xfcbd875f8b34ab98621954d5530b80a004ba7b1e8e6c559760c01b62c95f612eTransfer477956832023-09-21 4:00:081 day 6 hrs ago0xa7045c1da5124cbb9503b641abd7eaaa65f31494 IN  NFT Worlds: WRLD Token0 MATIC0.003767799525 102.435961218
0x43af9bfb6e2f9314740aa3c6cddae1e2ad8cae4034ef95074534ac955a41937fTransfer477905972023-09-21 0:59:071 day 9 hrs ago0x830725a8bb05000b95762b153d85a4d9918efb4a IN  NFT Worlds: WRLD Token0 MATIC0.007358096667274.79167446
0xcef61b202701f1e0a307bd4438b573e82fd7f915e6e904c56934eea256bc5a8cTransfer477905972023-09-21 0:59:071 day 9 hrs ago0x830725a8bb05000b95762b153d85a4d9918efb4a IN  NFT Worlds: WRLD Token0 MATIC0.007358096667274.79167446
0xe9cae686332376954ca7cf810b74b07fab17a4de32f695e0750f18efccbf5733Transfer477905952023-09-21 0:59:031 day 9 hrs ago0x830725a8bb05000b95762b153d85a4d9918efb4a IN  NFT Worlds: WRLD Token0 MATIC0.008794982332274.79167446
0x2258edf85d630dd9d4c34a5bd9c4e12334d752305968d7a5a60682e148ccbdc5Approve477893712023-09-21 0:15:411 day 10 hrs ago ken27.polygon  IN  NFT Worlds: WRLD Token0 MATIC0.002243296242 84.337615786
0x3a536f327c564f5173d073add4aec46f5b6d6eadbe3e13d6af97928b54101b17Approve477880922023-09-20 23:29:501 day 11 hrs ago0xb10af9035540809a4160adde0c6a2a8d66438bf6 IN  NFT Worlds: WRLD Token0 MATIC0.002583982277 81.300767001
0xf500e16fbd49dc08cbb9a99ca5a5c98faf626ffe63522c786aca2c7eeec8724eApprove477880632023-09-20 23:28:481 day 11 hrs ago0xb10af9035540809a4160adde0c6a2a8d66438bf6 IN  NFT Worlds: WRLD Token0 MATIC0.003147228058 64.780438803
0xc1738d6964d68a0b82d45640a6733e84079c5d423dae3a978975100f11de4509Approve477876172023-09-20 23:12:291 day 11 hrs ago0xcb7b8a1dbe163cb3ccff2fbc4e55bca30cda300a IN  NFT Worlds: WRLD Token0 MATIC0.004190582299 86.341450497
0xb69d376f8bd4a27aab41c36f4e4dfc16b6c1590ab00dc90aa8fed692452d226cApprove477855812023-09-20 21:57:561 day 12 hrs ago0x65af4c4e61ec7b55f3c9ff4bf5bfcc9725dbc2b7 IN  NFT Worlds: WRLD Token0 MATIC0.006260044166 128.820746298
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OVERVIEW

10,000 buildable, multiplayer, play & earn NFT gaming worlds.

Parent Txn Hash Block From To Value
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Contract Source Code Verified (Exact Match)

Contract Name:
WRLD_Token_Polygon

Compiler Version
v0.8.0+commit.c7dfd78e

Optimization Enabled:
Yes with 1000000 runs

Other Settings:
default evmVersion
File 1 of 9 : WRLD_Token_Polygon.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Capped.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/metatx/ERC2771Context.sol";

contract WRLD_Token_Polygon is ERC20, ERC20Capped, Ownable, ReentrancyGuard, ERC2771Context {
  uint public feeBps;
  uint public feeFixed;
  uint public feeCap;
  address private feeRecipient;
  address public childChainManagerProxy;

  event TransferRef(address indexed sender, address indexed recipient, uint256 amount, uint256 ref);

  /**
   * address _forwarder: The trusted forwarder contract address (WRLD_Forwarder_Polygon contract)
   * address _depositManager: The trusted polygon contract address for bridge deposits
   */

  constructor(address _forwarder, address _childChainManagerProxy)
  ERC20("NFT Worlds", "WRLD")
  ERC20Capped(5000000000 ether)
  ERC2771Context(_forwarder) {
    feeRecipient = _msgSender();
    childChainManagerProxy = _childChainManagerProxy;
  }

  function deposit(address user, bytes calldata depositData) external {
    require(_msgSender() == childChainManagerProxy, "Address not allowed to deposit.");

    uint256 amount = abi.decode(depositData, (uint256));

    _mint(user, amount);
  }

  function withdraw(uint256 amount) external {
    _burn(_msgSender(), amount);
  }

  function updateChildChainManager(address _childChainManagerProxy) external onlyOwner {
    require(_childChainManagerProxy != address(0), "Bad ChildChainManagerProxy address.");

    childChainManagerProxy = _childChainManagerProxy;
  }

  function setFees(uint _feeBps, uint _feeFixed, uint _feeCap) external onlyOwner {
    feeBps = _feeBps;
    feeFixed = _feeFixed;
    feeCap = _feeCap;
  }

  function setFeeRecipient(address recipient) external onlyOwner {
    require(recipient != address(0), "recipient is 0 addr");
    feeRecipient = recipient;
  }

  function transferWithFee(address recipient, uint256 amount) public nonReentrant returns (bool) {
    uint senderBalance = balanceOf(_msgSender());
    require(senderBalance >= amount, "ERC20: transfer amount exceeds balance.");

    uint percentageFee = amount * feeBps / 10000 + feeFixed;
    uint fee = percentageFee <= feeCap ? percentageFee : feeCap;

    _transfer(_msgSender(), feeRecipient, fee);
    _transfer(_msgSender(), recipient, amount - fee);

    return true;
  }

  function transferWithRef(address recipient, uint256 amount, uint256 ref) external returns (bool) {
    _transfer(_msgSender(), recipient, amount);
    emit TransferRef(_msgSender(), recipient, amount, ref);
    return true;
  }

  function transferWithFeeRef(address recipient, uint256 amount, uint256 ref) external returns (bool) {
    transferWithFee(recipient, amount);
    emit TransferRef(_msgSender(), recipient, amount, ref);
    return true;
  }

  /**
   * Overrides
   */

  function _msgSender() internal view override(Context, ERC2771Context) returns (address) {
    return super._msgSender();
  }

  function _msgData() internal view override(Context, ERC2771Context) returns (bytes calldata) {
    return super._msgData();
  }

  function _mint(address to, uint256 amount) internal override(ERC20, ERC20Capped) {
    super._mint(to, amount);
  }
}

File 2 of 9 : ERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @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 Contracts guidelines: functions revert
 * instead 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, IERC20Metadata {
    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

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

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override 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 this function is
     * overridden;
     *
     * 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 virtual override returns (uint8) {
        return 18;
    }

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual 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);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        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] + 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) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `sender` to `recipient`.
     *
     * This 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);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(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:
     *
     * - `account` 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 += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(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);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This 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 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 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 {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been 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 _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

File 3 of 9 : ERC20Capped.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20Capped.sol)

pragma solidity ^0.8.0;

import "../ERC20.sol";

/**
 * @dev Extension of {ERC20} that adds a cap to the supply of tokens.
 */
abstract contract ERC20Capped is ERC20 {
    uint256 private immutable _cap;

    /**
     * @dev Sets the value of the `cap`. This value is immutable, it can only be
     * set once during construction.
     */
    constructor(uint256 cap_) {
        require(cap_ > 0, "ERC20Capped: cap is 0");
        _cap = cap_;
    }

    /**
     * @dev Returns the cap on the token's total supply.
     */
    function cap() public view virtual returns (uint256) {
        return _cap;
    }

    /**
     * @dev See {ERC20-_mint}.
     */
    function _mint(address account, uint256 amount) internal virtual override {
        require(ERC20.totalSupply() + amount <= cap(), "ERC20Capped: cap exceeded");
        super._mint(account, amount);
    }
}

File 4 of 9 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

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() {
        _transferOwnership(_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 {
        _transferOwnership(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");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 5 of 9 : ReentrancyGuard.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

File 6 of 9 : ERC2771Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (metatx/ERC2771Context.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Context variant with ERC2771 support.
 */
abstract contract ERC2771Context is Context {
    address private _trustedForwarder;

    constructor(address trustedForwarder) {
        _trustedForwarder = trustedForwarder;
    }

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

    function _msgSender() internal view virtual override returns (address sender) {
        if (isTrustedForwarder(msg.sender)) {
            // The assembly code is more direct than the Solidity version using `abi.decode`.
            assembly {
                sender := shr(96, calldataload(sub(calldatasize(), 20)))
            }
        } else {
            return super._msgSender();
        }
    }

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

File 7 of 9 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @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 8 of 9 : IERC20Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

File 9 of 9 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

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) {
        return msg.data;
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

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","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"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferWithFee","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"ref","type":"uint256"}],"name":"transferWithFeeRef","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"ref","type":"uint256"}],"name":"transferWithRef","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_childChainManagerProxy","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)

0000000000000000000000007fe3aedfc76d7c6dd84b617081a9346de81236dc000000000000000000000000a6fa4fb5f76172d178d61b04b0ecd319c5d1c0aa

-----Decoded View---------------
Arg [0] : _forwarder (address): 0x7fe3aedfc76d7c6dd84b617081a9346de81236dc
Arg [1] : _childChainManagerProxy (address): 0xa6fa4fb5f76172d178d61b04b0ecd319c5d1c0aa

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000007fe3aedfc76d7c6dd84b617081a9346de81236dc
Arg [1] : 000000000000000000000000a6fa4fb5f76172d178d61b04b0ecd319c5d1c0aa


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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