Contract 0x65559aa14915a70190438ef90104769e5e890a00

 
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0xbb15311d34d9adc7d7a847792f79d6ed4b7db251bf803108fc065d66e54c2297Approve130572782022-06-25 16:50:095 days 6 hrs ago0xdca30e22523135dd0d3771ca0a73a55e4af9cdf0 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001130327750.001
0xf994a1cb075d77638032357e3469069f7a0a933c83a3de7a17fac0435dfe92c5Approve130440502022-06-25 13:57:485 days 9 hrs ago0x30f4337abe6f70890f4ac7ff77016d4b8edb42a6 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001710053280.001
0x06c986dd54103229a24027535038ff24a04d0ce033e5c8f103c865f3a674c7c2Approve129734202022-06-25 0:01:515 days 23 hrs ago0xbbf01e7bb6124bb88510da87e8bf55da2e69ed41 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.000246796760.001
0xb0377a6dfa65c63caafdb7ac8c045862324d703ee535b0665d22eb0a0caea3cfApprove129534532022-06-24 19:05:546 days 4 hrs ago0xaf9424cada0b22abe92e0602dfc09f3e00903764 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0002289437840.001
0x3f09c787d7ffe5b8cfb7941133b79b67a9522ad45e343d7c31747d660462015dApprove127903812022-06-23 8:15:507 days 15 hrs ago0x7562be2022d31a75f9887b7b932256c704f0c8e7 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0000779494290.001
0xde6e0c92c5a9b9e3f439b3e032b2878f3ba002ce4bdd9fe9f10f38557ac4ba6aApprove127601162022-06-23 1:24:427 days 21 hrs ago0x770d6dc750d50c6a1e237f9a6f0fa75acf7546ac IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0000924898110.001
0x8a4e4d834ebd098f2c6cc81557b9d66b3a8048cb7910abe9c0fc760da6f79381Approve126207542022-06-21 22:47:219 days 28 mins ago0xe296113009c902bb372db1d2bb04756c787990a5 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001738752990.001
0x1fc386ee4f74d252f5a14541afef42f3afff84dba2da9d2fc966547f7ed33d2cApprove126158892022-06-21 21:31:509 days 1 hr ago0x34ad53757d9489fbc43d3030325817646f1e1c38 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0002712817250.001
0xdebca69c42a2e3f2ec9b99c1df5cd61a42cc5d072dba651c8a432d948f6bcabaApprove126156302022-06-21 21:26:339 days 1 hr ago0xa0c048eb64cf32559a49a41fa7cc428357897563 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0002205165930.001
0x99e9c0506a0247bbcd5e6ea2f12b3c8dacdb26b0b1589d395d81f57b74b87c17Approve125522422022-06-21 8:31:419 days 14 hrs ago0x583e4f6400ca8b7dbb0d9912a6627f80065287eb IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001185938930.001
0xdbaad7af6f25461b19c52ed65a00b5080cf420c637cf3063aa9582b76028435cApprove125522372022-06-21 8:31:269 days 14 hrs ago0x583e4f6400ca8b7dbb0d9912a6627f80065287eb IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001185938930.001
0x0c23b5abcaefc2a7ba1fe03024af1569e964292f11145262051a9d1183601788Approve125522322022-06-21 8:31:269 days 14 hrs ago0x583e4f6400ca8b7dbb0d9912a6627f80065287eb IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001185938930.001
0x9d36366fb664ac31e0030a9d44834ddcc1ba47e475f05d7c32f9fb461bc0be4cApprove125521672022-06-21 8:30:419 days 14 hrs ago0x583e4f6400ca8b7dbb0d9912a6627f80065287eb IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001186137930.001
0x156edc4414329d9ba2a7d021d1d425c4798006f8126f81133a7022f9bbbc4167Approve123719602022-06-19 17:09:1511 days 6 hrs ago0xfb73b3d3bf276754e6daf298b9b5c0b98c592a28 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0000665267520.001
0x9dabda5f8e1acf4e66d02e6a028aad06c550647d6850dfcb77ccf7697f56cf89Approve119928752022-06-16 5:50:5614 days 17 hrs ago0x697ccd97c8419ebba7347cef03a0cd02804ebf54 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0000980691040.001
0x798be4dbed2dfd7212e3019f4dfdb1eec6c1a41b5b20c66e1aa2493100592b0eApprove118343412022-06-15 5:58:2215 days 17 hrs ago0x4f7e578ca0beff5d770160e2b4523ec7d7d48ff3 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001915328141
0xc799a99abdc73e3a2c16a037b8ade1b1a8c9c7ff36e709fc07d416d193043359Approve118219552022-06-15 4:28:2215 days 18 hrs ago0xacfae012bbbb7e60a360558d50af362cf70719ba IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0002681734340.001
0x62e0a585a8c77392ca7eac6425b4a8f73dacdea580b28f6d5fdf7cb9d5780071Approve114465262022-06-12 22:35:5518 days 40 mins ago0x494a38626ba7c9f73a9c9be964cb3f9b323a24cf IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0000927826250.001
0x5df7ccd13fabffe57b55e2231cabfbf9502944c14f3979aea446eeb261805b8eApprove113733562022-06-12 9:13:2518 days 14 hrs ago0x34ad53757d9489fbc43d3030325817646f1e1c38 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001848486050.001
0xf001021a772a057ca6556f68ce03e01c2babe0b636c84213b3b7e0700237518fApprove112775662022-06-11 15:30:4619 days 7 hrs ago0x307633a9a58a3beaafe818ac56edb2280caebf12 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0003178868540.001
0x1ecb3124eb4667f83d94a380159aaedda47a50d18c38bd145a2d2f03645dcea0Approve112042242022-06-11 3:33:4819 days 19 hrs ago0xcd2843b5e67fe8d9eb411d967ff63318b0abf96f IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0001191741940.001
0x4367889a0b02d99b7cc622e80286b519a244f69fc2c54c14c34b138ded893430Approve111792602022-06-10 18:25:2120 days 4 hrs ago0x2b38ae873456cfd942b23e6a346cb4e12c3e4072 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0005050346280.001
0xed16874738c30abb881fca65765c8ab7ec4186dd750b1f5edbceecf93b9c79b9Approve111686922022-06-10 16:18:1920 days 6 hrs ago0xb85eaf59e6dc69ac7b6d92c6c24e1a83b582b293 IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0002430817220.001
0x7fac1aaf885bb97fba677d2a9e4f2f30a8e81ab5c05430b61d3ee1bea8d09abaApprove111634702022-06-10 15:03:3420 days 8 hrs ago0xb3503af9aaf5b2177d5514ea415ce19b411faf1b IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0004387653080.001
0x2e4a617f6d44fa50fa3fbeabfb52fcb0049465ba4434889a9e179a6ad4d8d451Approve111003742022-06-10 1:32:2720 days 21 hrs ago0x80a991bb944d2a8859ea0f2fa93481b51dcf463b IN  0x65559aa14915a70190438ef90104769e5e890a000 Ether0.0002626053960.001
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0xd5ffd365694e3ab3030565b6e2b604f3a6434a6747170f4972a150c9883b1544134942382022-06-30 0:06:0023 hrs 9 mins ago 0x059d306a25c4ce8d7437d25743a8b94520536bd5 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xd5ffd365694e3ab3030565b6e2b604f3a6434a6747170f4972a150c9883b1544134942382022-06-30 0:06:0023 hrs 9 mins ago 0xbf5c27cc7c1c91e924fa7b4df7928371e8f713a6 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xd5ffd365694e3ab3030565b6e2b604f3a6434a6747170f4972a150c9883b1544134942382022-06-30 0:06:0023 hrs 9 mins ago 0x34f7ffe0ab212476a878f6277568f55d6927b251 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xd5ffd365694e3ab3030565b6e2b604f3a6434a6747170f4972a150c9883b1544134942382022-06-30 0:06:0023 hrs 9 mins ago 0x059d306a25c4ce8d7437d25743a8b94520536bd5 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xb916db539ad3779dd8f1d25cf1b877bc571bc7d265f56c5364c8532b5b367faa134597162022-06-29 13:15:181 day 10 hrs ago 0x34f7ffe0ab212476a878f6277568f55d6927b251 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xb916db539ad3779dd8f1d25cf1b877bc571bc7d265f56c5364c8532b5b367faa134597162022-06-29 13:15:181 day 10 hrs ago Uniswap V3: Router 2 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xb916db539ad3779dd8f1d25cf1b877bc571bc7d265f56c5364c8532b5b367faa134597162022-06-29 13:15:181 day 10 hrs ago 0x34f7ffe0ab212476a878f6277568f55d6927b251 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0x88a4fc5f749ad99942484c085f3dd11e1a2d5fff8e6a1bbb632ab00f7db0d793134318302022-06-29 5:36:051 day 17 hrs ago Optimism Bridge 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0x88a4fc5f749ad99942484c085f3dd11e1a2d5fff8e6a1bbb632ab00f7db0d793134318302022-06-29 5:36:051 day 17 hrs ago Optimism Bridge 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0x79663bafdef67a442289bd883d2c2d1a509fa00e36ffe46c873e977c6cdcc6a9134194402022-06-29 0:52:451 day 22 hrs ago 0x34f7ffe0ab212476a878f6277568f55d6927b251 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0x79663bafdef67a442289bd883d2c2d1a509fa00e36ffe46c873e977c6cdcc6a9134194402022-06-29 0:52:451 day 22 hrs ago Uniswap V3: Router 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0x79663bafdef67a442289bd883d2c2d1a509fa00e36ffe46c873e977c6cdcc6a9134194402022-06-29 0:52:451 day 22 hrs ago 0x34f7ffe0ab212476a878f6277568f55d6927b251 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0x4c3ee53db6adcfa2381b7c201dd420eab52df673c4add3f9d3b9ad50a836e09a133857982022-06-28 13:00:452 days 10 hrs ago 0x059d306a25c4ce8d7437d25743a8b94520536bd5 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0x4c3ee53db6adcfa2381b7c201dd420eab52df673c4add3f9d3b9ad50a836e09a133857982022-06-28 13:00:452 days 10 hrs ago 0xbf5c27cc7c1c91e924fa7b4df7928371e8f713a6 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0x4c3ee53db6adcfa2381b7c201dd420eab52df673c4add3f9d3b9ad50a836e09a133857982022-06-28 13:00:452 days 10 hrs ago 0x34f7ffe0ab212476a878f6277568f55d6927b251 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0x4c3ee53db6adcfa2381b7c201dd420eab52df673c4add3f9d3b9ad50a836e09a133857982022-06-28 13:00:452 days 10 hrs ago 0x059d306a25c4ce8d7437d25743a8b94520536bd5 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xa2768365d7bb2bcc8b8d84ac13d852d09d105f8687c359b6bfaec771df92d655133367202022-06-27 19:59:583 days 3 hrs ago 0x7ea8c22e6dcd7bd69eb180664da68e1f1f11d696 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xa2768365d7bb2bcc8b8d84ac13d852d09d105f8687c359b6bfaec771df92d655133367202022-06-27 19:59:583 days 3 hrs ago 0x34f7ffe0ab212476a878f6277568f55d6927b251 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xa2768365d7bb2bcc8b8d84ac13d852d09d105f8687c359b6bfaec771df92d655133367202022-06-27 19:59:583 days 3 hrs ago 0x7ea8c22e6dcd7bd69eb180664da68e1f1f11d696 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xee1af3a8b3f910da2c9c1f5349854d0efdb1ba947c3109a787b78f64b6945391133366152022-06-27 19:57:253 days 3 hrs ago 0xdef1abe32c034e558cdd535791643c58a13acc10 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xee1af3a8b3f910da2c9c1f5349854d0efdb1ba947c3109a787b78f64b6945391133366152022-06-27 19:57:253 days 3 hrs ago 0xa3128d9b7cca7d5af29780a56abeec12b05a6740 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xee1af3a8b3f910da2c9c1f5349854d0efdb1ba947c3109a787b78f64b6945391133366152022-06-27 19:57:253 days 3 hrs ago 0xdef1abe32c034e558cdd535791643c58a13acc10 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xee1af3a8b3f910da2c9c1f5349854d0efdb1ba947c3109a787b78f64b6945391133366152022-06-27 19:57:253 days 3 hrs ago 0x34f7ffe0ab212476a878f6277568f55d6927b251 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xee1af3a8b3f910da2c9c1f5349854d0efdb1ba947c3109a787b78f64b6945391133366152022-06-27 19:57:253 days 3 hrs ago 0xdef1abe32c034e558cdd535791643c58a13acc10 0x65559aa14915a70190438ef90104769e5e890a000 Ether
0xa855c014c30c9a91d7f8c4c6b008e9f2b1912e7ef33fa95860a0f629fbd08a84132001632022-06-27 0:01:033 days 23 hrs ago 0x2a96312bbc4a2ad6db07d523d74d0634c66f4258 0x65559aa14915a70190438ef90104769e5e890a000 Ether
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Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xc40f949f8a4e094d1b49a23ea9241d289b7b2819

Contract Name:
L2StandardERC20

Compiler Version
v0.7.6+commit.7338295f

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license
File 1 of 7 : L2StandardERC20.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.5.16 <0.8.0;

import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";

import "./IL2StandardERC20.sol";

contract L2StandardERC20 is IL2StandardERC20, ERC20 {
    address public override l1Token;
    address public l2Bridge;

    /**
     * @param _l2Bridge Address of the L2 standard bridge.
     * @param _l1Token Address of the corresponding L1 token.
     * @param _name ERC20 name.
     * @param _symbol ERC20 symbol.
     */
    constructor(
        address _l2Bridge,
        address _l1Token,
        string memory _name,
        string memory _symbol
    )
        ERC20(_name, _symbol) {
        l1Token = _l1Token;
        l2Bridge = _l2Bridge;
    }

    modifier onlyL2Bridge {
        require(msg.sender == l2Bridge, "Only L2 Bridge can mint and burn");
        _;
    }

    function supportsInterface(bytes4 _interfaceId) public override pure returns (bool) {
        bytes4 firstSupportedInterface = bytes4(keccak256("supportsInterface(bytes4)")); // ERC165
        bytes4 secondSupportedInterface = IL2StandardERC20.l1Token.selector
            ^ IL2StandardERC20.mint.selector
            ^ IL2StandardERC20.burn.selector;
        return _interfaceId == firstSupportedInterface || _interfaceId == secondSupportedInterface;
    }

    function mint(address _to, uint256 _amount) public override onlyL2Bridge {
        _mint(_to, _amount);

        emit Mint(_to, _amount);
    }

    function burn(address _from, uint256 _amount) public override onlyL2Bridge {
        _burn(_from, _amount);

        emit Burn(_from, _amount);
    }
}

File 2 of 7 : ERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../../utils/Context.sol";
import "./IERC20.sol";
import "../../math/SafeMath.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 guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20 {
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;

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

    uint256 private _totalSupply;

    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 virtual returns (string memory) {
        return _name;
    }

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

    /**
     * @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);
        _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 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 virtual {
        _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 3 of 7 : IL2StandardERC20.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.5.16 <0.8.0;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IERC165 } from "@openzeppelin/contracts/introspection/IERC165.sol";

interface IL2StandardERC20 is IERC20, IERC165 {
    function l1Token() external returns (address);

    function mint(address _to, uint256 _amount) external;

    function burn(address _from, uint256 _amount) external;

    event Mint(address indexed _account, uint256 _amount);
    event Burn(address indexed _account, uint256 _amount);
}

File 4 of 7 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 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 5 of 7 : IERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 6 of 7 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @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, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, 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 (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @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) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @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) {
        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, reverting 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) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting 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) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * 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);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * 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);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * 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 7 of 7 : IERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "bytecodeHash": "none",
    "useLiteralContent": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_l2Bridge","type":"address"},{"internalType":"address","name":"_l1Token","type":"address"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_account","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_account","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"l1Token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"l2Bridge","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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Deployed ByteCode Sourcemap

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Swarm Source

none
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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