Contract 0xd6909e9e702024eb93312b989ee46794c0fb1c9d 12

 

Contract Overview

Biconomy: BICO Token
Balance:
0 ETH

EtherValue:
$0.00

Token:
Txn Hash Method
Block
From
To
Value
0x27eb25dcc3b9383da3598abae282190877b674c2dd623eb237983a0d68e65f77Approve1180111582024-03-28 10:18:133 hrs 15 mins ago0x316be293c8f2380769e7b7e7382679fe5a3b6600 IN  Biconomy: BICO Token0 ETH0.0000036115690.028777733
0xc84fa4bcdc22ee0285b9833265e380c6b413df962444b541fb9ee9380419b84cApprove1177622142024-03-22 16:00:055 days 21 hrs ago0x57da102ced9e9c050990d06156393f53895124a9 IN  Biconomy: BICO Token0 ETH0.0000004945080.0172528
0x28a008680405b479a30d35df05d63e8b38cf851541a1e657a8d0feae9496c7acApprove1177531832024-03-22 10:59:036 days 2 hrs ago0x5d8f43a081a8e3c1b121cc72b64013d87a4461a9 IN  Biconomy: BICO Token0 ETH0.0000002381880.006288317
0xf00331abe6baefaf2b07c14adc31dd6806f990548bdc0164b139fee5a25338adApprove1176499022024-03-20 1:36:218 days 11 hrs ago0x8d7c756502143134828772888f1458416578490f IN  Biconomy: BICO Token0 ETH0.0000003125290.008760954
0x7dd9a048dcd8bb22d47453c2ffd1abe1e859f62b4842850cef5e43d6a938ec3dApprove1164338922024-02-20 22:02:4136 days 15 hrs ago0x038ac1795d2c99b312e981e2992bfc45d0b3c73e IN  Biconomy: BICO Token0 ETH0.0001239835380.003646721
0x562d97f5e3263d56e2e50cd2364a486f930445dc1570d9d70ac0921d400e4541Approve1149358072024-01-17 5:46:3171 days 7 hrs ago0x5086c702f2ec2fafd1019ee5a69725b711cbbe06 IN  Biconomy: BICO Token0 ETH0.0000577806030.09499157
0xcf9984dcb5d0250d2d18ce0e8aaae64a898fe3e9fcc6eaad015529693b19cba2Approve1148094812024-01-14 7:35:3974 days 5 hrs ago0x5df32fbb91eb1b1fcfd6903a0de4a66524c0f870 IN  Biconomy: BICO Token0 ETH0.0000971727370.002954179
0x49f417cbfdedc89e0020b225eb601c125551cbf626b885087e534814e59e7bdcApprove1147509452024-01-12 23:04:2775 days 14 hrs ago0xd7385b0e6db877731913e0568dfc2f5e7b1202f8 IN  Biconomy: BICO Token0 ETH0.0000469353990.006453774
0x833e7b1c3ddb4236087a9c3ebc4dbbf4e2dc75dbfeaae5d459c18e7e1cba0841Approve1147035252024-01-11 20:43:4776 days 16 hrs ago0xfbc2a74f06934651a30d190c02d0aeeddc30670a IN  Biconomy: BICO Token0 ETH0.0000514634960.009040528
0x1021be953f8c8b9f5a71e988ce74248b0e2e584ac61c659972d6f46b6aaaddefApprove1147031782024-01-11 20:32:1376 days 17 hrs ago0xfbc2a74f06934651a30d190c02d0aeeddc30670a IN  Biconomy: BICO Token0 ETH0.0000549872450.010227364
0x492cad8cba4fb01f9236e4f4d0c24d6ca5a0f8e3bf55d1ffd3ba9af51622d34eApprove1144263902024-01-05 10:45:5783 days 2 hrs ago0xf07a21ad94bc379684ed1d4fee1a8371e4406298 IN  Biconomy: BICO Token0 ETH0.0000268722420.011050344
0x72123a5c4ffe5aac37ec988e9e3b678373931d6f100708d0d235ba082550267cApprove1143582642024-01-03 20:55:0584 days 16 hrs ago 0xb4ffecb1aa10758988b83f7eee5cb3765c133359 IN  Biconomy: BICO Token0 ETH0.0000473764890.008908316
0x6cb3baadcb28a39fbcd611c688f2266ed10f8ce1e86b8c0bf9cc68ee1c8b2bf1Approve1143474362024-01-03 14:54:0984 days 22 hrs ago0x97a733b26bafec6dacc5f68f48934d1d8f38df32 IN  Biconomy: BICO Token0 ETH0.0000935981530.009541055
0xea851532e61f91ca7e3392c0dfd0acf16def610f94cb5ee3672fc8842b796c71Approve1143035132024-01-02 14:30:0385 days 23 hrs ago0x71f92ceae826f500df0eac1b67148e37d1dbbab4 IN  Biconomy: BICO Token0 ETH0.0000387352280.103400361
0xf6ecab642034cc85511ec829d5e891d0372cd23ce466e2db4222a878d5007684Approve1143034402024-01-02 14:27:3785 days 23 hrs ago0x71f92ceae826f500df0eac1b67148e37d1dbbab4 IN  Biconomy: BICO Token0 ETH0.0000465942210.10316908
0x41e3b8ab35260545b5e059f3c1cdced4b7fb72e49aa66c532ef891f065e0934bApprove1142135132023-12-31 12:30:0388 days 1 hr ago0xce22f4b16d95127883d6a58ff91dd71ceba50ad7 IN  Biconomy: BICO Token0 ETH0.0000245301290.004787083
0xf452357770bc87904a7c7c81d44787482cff3c7b68418aedffe5f856e2e3b3f4Approve1140654602023-12-28 2:14:5791 days 11 hrs ago0x57da102ced9e9c050990d06156393f53895124a9 IN  Biconomy: BICO Token0 ETH0.0000584572110.005458247
0x86cbebad7963bad4239de34f3d5cc76d281473d366926e65304194a22907fe35Approve1140369062023-12-27 10:23:0992 days 3 hrs ago0xff6146aad91a1a64000f7131624b02e764ecf1f8 IN  Biconomy: BICO Token0 ETH0.0000581331340.004612723
0x89a507afb88f5248d435dc81ecb99798bad9b54ff644451dbe5df139632ed275Approve1140368932023-12-27 10:22:4392 days 3 hrs ago0xff6146aad91a1a64000f7131624b02e764ecf1f8 IN  Biconomy: BICO Token0 ETH0.0000607904730.004866554
0xf8afa53df81e2cdfc9ecf5c306aac4e60735b4e305fa28058ee26ea936565be6Approve1140325232023-12-27 7:57:0392 days 5 hrs ago0x1b522768260c1fe728901dc2f2d2988a912c6fa0 IN  Biconomy: BICO Token0 ETH0.0000288311750.003622529
0x7788ffe83c9d75042b68114afa64b45a0fc77eb140d8c64518e6e039f329a6fbApprove1138872602023-12-23 23:14:5795 days 14 hrs ago0x71f92ceae826f500df0eac1b67148e37d1dbbab4 IN  Biconomy: BICO Token0 ETH0.0000327206910.009048009
0x46f9ab190aa145033c0937787827a01cd75c4ebbcdb54da45495c2e824232b9eApprove1138767992023-12-23 17:26:1595 days 20 hrs ago0xbb4d8be1336a25d6056083faa61b8b2cce4de48c IN  Biconomy: BICO Token0 ETH0.0000417840570.004424764
0x5f166f044a3fe7d3c181b6034ccf1f13e17c87a29445b903af45ac027c1b72e1Transfer1138753262023-12-23 16:37:0995 days 20 hrs ago0x97a733b26bafec6dacc5f68f48934d1d8f38df32 IN  Biconomy: BICO Token0 ETH0.0000440475940.00493658
0x14353d646a9b7cad0c9f6f1b058a6d076d8e459e8135ee95d86448bd1ab95ee3Transfer1138411092023-12-22 21:36:3596 days 15 hrs ago0x97a733b26bafec6dacc5f68f48934d1d8f38df32 IN  Biconomy: BICO Token0 ETH0.0000482522930.006020061
0xdcbdc8a4690b34772e13fc1a65641b64a21085cfeaad8b3bda4bf233bb076299Approve1137355402023-12-20 10:57:3799 days 2 hrs ago0x553210acf00a98286077d4e93b3b476be5e1794d IN  Biconomy: BICO Token0 ETH0.0000973001130.0057779
[ Download CSV Export 

OVERVIEW

Biconomy is a toolkit to leverage smart contract wallets and build custom transaction journeys.

Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x69abf6436e7d84d9c7748488e55e1520c32a2234c677bd1cf80f399543df7fae1075489842023-07-30 5:59:05242 days 7 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x69abf6436e7d84d9c7748488e55e1520c32a2234c677bd1cf80f399543df7fae1075489842023-07-30 5:59:05242 days 7 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x69abf6436e7d84d9c7748488e55e1520c32a2234c677bd1cf80f399543df7fae1075489842023-07-30 5:59:05242 days 7 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x69abf6436e7d84d9c7748488e55e1520c32a2234c677bd1cf80f399543df7fae1075489842023-07-30 5:59:05242 days 7 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x449eeb91a9980eaf7fc7cc699be10ee7f2727043eaa392ca16617a4ca9f07f1c1075489512023-07-30 5:57:59242 days 7 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x449eeb91a9980eaf7fc7cc699be10ee7f2727043eaa392ca16617a4ca9f07f1c1075489512023-07-30 5:57:59242 days 7 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x449eeb91a9980eaf7fc7cc699be10ee7f2727043eaa392ca16617a4ca9f07f1c1075489512023-07-30 5:57:59242 days 7 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x449eeb91a9980eaf7fc7cc699be10ee7f2727043eaa392ca16617a4ca9f07f1c1075489512023-07-30 5:57:59242 days 7 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0xf23ad70e24ce1b3353f018f9dea87df54d3318c6071b1d54b5cef9e5278a67691075224762023-07-29 15:15:29242 days 22 hrs ago Biconomy.io: Liquidity Pool Biconomy: BICO Token0 ETH
0xaebee87ca99097b86216d318033b25d3986d273c2b8b02b1c579ddf4e477ca691075216572023-07-29 14:48:11242 days 22 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0xaebee87ca99097b86216d318033b25d3986d273c2b8b02b1c579ddf4e477ca691075216572023-07-29 14:48:11242 days 22 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0xaebee87ca99097b86216d318033b25d3986d273c2b8b02b1c579ddf4e477ca691075216572023-07-29 14:48:11242 days 22 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0xaebee87ca99097b86216d318033b25d3986d273c2b8b02b1c579ddf4e477ca691075216572023-07-29 14:48:11242 days 22 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x0db23cc44014c9ff15caa78dcb774806f070fe7b5c14d9fd63a42bd2c9ba802f1073150242023-07-24 20:00:25247 days 17 hrs ago Beethoven X: Vault Biconomy: BICO Token0 ETH
0x0db23cc44014c9ff15caa78dcb774806f070fe7b5c14d9fd63a42bd2c9ba802f1073150242023-07-24 20:00:25247 days 17 hrs ago Paraswap v5: Augustus Swapper Biconomy: BICO Token0 ETH
0x0db23cc44014c9ff15caa78dcb774806f070fe7b5c14d9fd63a42bd2c9ba802f1073150242023-07-24 20:00:25247 days 17 hrs ago Paraswap v5: Token Transfer Proxy Biconomy: BICO Token0 ETH
0x60a3d8ecc6e22b137ea8d62279f5a7596c6b55bac1d0c2d03afa4abe0cb0616c1073030312023-07-24 13:20:39248 days 12 mins ago Biconomy.io: Liquidity Pool Biconomy: BICO Token0 ETH
0xadf2c8eacdb3afd6531aeb05013cd3b241083289e49e44a52aaeb672e8e2d7431073030132023-07-24 13:20:03248 days 13 mins ago Beethoven X: Vault Biconomy: BICO Token0 ETH
0xadf2c8eacdb3afd6531aeb05013cd3b241083289e49e44a52aaeb672e8e2d7431073030132023-07-24 13:20:03248 days 13 mins ago Paraswap v5: Augustus Swapper Biconomy: BICO Token0 ETH
0xadf2c8eacdb3afd6531aeb05013cd3b241083289e49e44a52aaeb672e8e2d7431073030132023-07-24 13:20:03248 days 13 mins ago Paraswap v5: Token Transfer Proxy Biconomy: BICO Token0 ETH
0x7b8d9843e09636c78663cb012e809bb886af6d8035fcd9f970652f53b207ccf31072992812023-07-24 11:15:39248 days 2 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x7b8d9843e09636c78663cb012e809bb886af6d8035fcd9f970652f53b207ccf31072992812023-07-24 11:15:39248 days 2 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x7b8d9843e09636c78663cb012e809bb886af6d8035fcd9f970652f53b207ccf31072992812023-07-24 11:15:39248 days 2 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x7b8d9843e09636c78663cb012e809bb886af6d8035fcd9f970652f53b207ccf31072992812023-07-24 11:15:39248 days 2 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
0x77344c91f5e2fa424c053119788db9faf4fab0a0b166425a3bb61339024522691072697192023-07-23 18:50:15248 days 18 hrs ago 0xf46c7d442bc9e279d1e7bc4bfa57813d5f32c239 Biconomy: BICO Token0 ETH
[ Download CSV Export 
Loading

Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x7c6b91d9be155a6db01f749217d76ff02a7227f2
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
L2StandardERC20

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
Yes with 10000 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Optimistic.Etherscan.io on 2021-11-28
*/

// File @openzeppelin/contracts/token/ERC20/[email protected]

// SPDX-License-Identifier: MIT

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 @openzeppelin/contracts/token/ERC20/extensions/[email protected]

pragma solidity ^0.8.0;

/**
 * @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 @openzeppelin/contracts/utils/[email protected]

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;
    }
}


// File @openzeppelin/contracts/token/ERC20/[email protected]

pragma solidity ^0.8.0;



/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin 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 @openzeppelin/contracts/utils/introspection/[email protected]

pragma solidity ^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);
}


// File contracts/standards/IL2StandardERC20.sol

pragma solidity ^0.8.9;


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 contracts/standards/L2StandardERC20.sol

pragma solidity ^0.8.9;


contract L2StandardERC20 is IL2StandardERC20, ERC20 {
    address public 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 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 virtual onlyL2Bridge {
        _mint(_to, _amount);

        emit Mint(_to, _amount);
    }

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

        emit Burn(_from, _amount);
    }
}

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"}]

Deployed Bytecode

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

Deployed ByteCode Sourcemap

17782:1466:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;18477:454;;;;;;:::i;:::-;;:::i;:::-;;;516:14:1;;509:22;491:41;;479:2;464:18;18477:454:0;;;;;;;;6451:100;;;:::i;:::-;;;;;;;:::i;8618:169::-;;;;;;:::i;:::-;;:::i;7571:108::-;7659:12;;7571:108;;;1810:25:1;;;1798:2;1783:18;7571:108:0;1664:177:1;9269:492:0;;;;;;:::i;:::-;;:::i;7413:93::-;;;7496:2;2321:36:1;;2309:2;2294:18;7413:93:0;2179:184:1;10170:215:0;;;;;;:::i;:::-;;:::i;18939:146::-;;;;;;:::i;:::-;;:::i;:::-;;7742:127;;;;;;:::i;:::-;7843:18;;7816:7;7843:18;;;;;;;;;;;;7742:127;6670:104;;;:::i;19093:152::-;;;;;;:::i;:::-;;:::i;10888:413::-;;;;;;:::i;:::-;;:::i;8082:175::-;;;;;;:::i;:::-;;:::i;17870:23::-;;;;;;;;;;;;2735:42:1;2723:55;;;2705:74;;2693:2;2678:18;17870:23:0;2559:226:1;17841:22:0;;;;;;;;;8320:151;;;;;;:::i;:::-;8436:18;;;;8409:7;8436:18;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;8320:151;18477:454;18546:4;18603:38;18697:125;18840:39;;;;;;:83;;-1:-1:-1;18883:40:0;;;;;;;;18840:83;18833:90;18477:454;-1:-1:-1;;;;18477:454:0:o;6451:100::-;6505:13;6538:5;6531:12;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;6451:100;:::o;8618:169::-;8701:4;8718:39;4242:10;8741:7;8750:6;8718:8;:39::i;:::-;-1:-1:-1;8775:4:0;8618:169;;;;:::o;9269:492::-;9409:4;9426:36;9436:6;9444:9;9455:6;9426:9;:36::i;:::-;9502:19;;;9475:24;9502:19;;;:11;:19;;;;;;;;4242:10;9502:33;;;;;;;;9554:26;;;;9546:79;;;;-1:-1:-1;;;9546:79:0;;3699:2:1;9546:79:0;;;3681:21:1;3738:2;3718:18;;;3711:30;3777:34;3757:18;;;3750:62;3848:10;3828:18;;;3821:38;3876:19;;9546:79:0;;;;;;;;;9661:57;9670:6;4242:10;9711:6;9692:16;:25;9661:8;:57::i;:::-;-1:-1:-1;9749:4:0;;9269:492;-1:-1:-1;;;;9269:492:0:o;10170:215::-;4242:10;10258:4;10307:25;;;:11;:25;;;;;;;;;:34;;;;;;;;;;10258:4;;10275:80;;10298:7;;10307:47;;10344:10;;10307:47;:::i;:::-;10275:8;:80::i;18939:146::-;18404:8;;;;18390:10;:22;18382:67;;;;-1:-1:-1;;;18382:67:0;;4430:2:1;18382:67:0;;;4412:21:1;;;4449:18;;;4442:30;4508:34;4488:18;;;4481:62;4560:18;;18382:67:0;4228:356:1;18382:67:0;19022:19:::1;19028:3;19033:7;19022:5;:19::i;:::-;19064:3;19059:18;;;19069:7;19059:18;;;;1810:25:1::0;;1798:2;1783:18;;1664:177;19059:18:0::1;;;;;;;;18939:146:::0;;:::o;6670:104::-;6726:13;6759:7;6752:14;;;;;:::i;19093:152::-;18404:8;;;;18390:10;:22;18382:67;;;;-1:-1:-1;;;18382:67:0;;4430:2:1;18382:67:0;;;4412:21:1;;;4449:18;;;4442:30;4508:34;4488:18;;;4481:62;4560:18;;18382:67:0;4228:356:1;18382:67:0;19178:21:::1;19184:5;19191:7;19178:5;:21::i;:::-;19222:5;19217:20;;;19229:7;19217:20;;;;1810:25:1::0;;1798:2;1783:18;;1664:177;10888:413:0;4242:10;10981:4;11025:25;;;:11;:25;;;;;;;;;:34;;;;;;;;;;11078:35;;;;11070:85;;;;-1:-1:-1;;;11070:85:0;;4791:2:1;11070:85:0;;;4773:21:1;4830:2;4810:18;;;4803:30;4869:34;4849:18;;;4842:62;4940:7;4920:18;;;4913:35;4965:19;;11070:85:0;4589:401:1;11070:85:0;11191:67;4242:10;11214:7;11242:15;11223:16;:34;11191:8;:67::i;:::-;-1:-1:-1;11289:4:0;;10888:413;-1:-1:-1;;;10888:413:0:o;8082:175::-;8168:4;8185:42;4242:10;8209:9;8220:6;8185:9;:42::i;14572:380::-;14708:19;;;14700:68;;;;-1:-1:-1;;;14700:68:0;;5197:2:1;14700:68:0;;;5179:21:1;5236:2;5216:18;;;5209:30;5275:34;5255:18;;;5248:62;5346:6;5326:18;;;5319:34;5370:19;;14700:68:0;4995:400:1;14700:68:0;14787:21;;;14779:68;;;;-1:-1:-1;;;14779:68:0;;5602:2:1;14779:68:0;;;5584:21:1;5641:2;5621:18;;;5614:30;5680:34;5660:18;;;5653:62;5751:4;5731:18;;;5724:32;5773:19;;14779:68:0;5400:398:1;14779:68:0;14860:18;;;;;;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;:36;;;14912:32;;1810:25:1;;;14912:32:0;;1783:18:1;14912:32:0;;;;;;;;14572:380;;;:::o;11791:733::-;11931:20;;;11923:70;;;;-1:-1:-1;;;11923:70:0;;6005:2:1;11923:70:0;;;5987:21:1;6044:2;6024:18;;;6017:30;6083:34;6063:18;;;6056:62;6154:7;6134:18;;;6127:35;6179:19;;11923:70:0;5803:401:1;11923:70:0;12012:23;;;12004:71;;;;-1:-1:-1;;;12004:71:0;;6411:2:1;12004:71:0;;;6393:21:1;6450:2;6430:18;;;6423:30;6489:34;6469:18;;;6462:62;6560:5;6540:18;;;6533:33;6583:19;;12004:71:0;6209:399:1;12004:71:0;12172:17;;;12148:21;12172:17;;;;;;;;;;;12208:23;;;;12200:74;;;;-1:-1:-1;;;12200:74:0;;6815:2:1;12200:74:0;;;6797:21:1;6854:2;6834:18;;;6827:30;6893:34;6873:18;;;6866:62;6964:8;6944:18;;;6937:36;6990:19;;12200:74:0;6613:402:1;12200:74:0;12310:17;;;;:9;:17;;;;;;;;;;;12330:22;;;12310:42;;12374:20;;;;;;;;:30;;12346:6;;12310:9;12374:30;;12346:6;;12374:30;:::i;:::-;;;;;;;;12439:9;12422:35;;12431:6;12422:35;;;12450:6;12422:35;;;;1810:25:1;;1798:2;1783:18;;1664:177;12422:35:0;;;;;;;;11912:612;11791:733;;;:::o;12811:399::-;12895:21;;;12887:65;;;;-1:-1:-1;;;12887:65:0;;7222:2:1;12887:65:0;;;7204:21:1;7261:2;7241:18;;;7234:30;7300:33;7280:18;;;7273:61;7351:18;;12887:65:0;7020:355:1;12887:65:0;13043:6;13027:12;;:22;;;;;;;:::i;:::-;;;;-1:-1:-1;;13060:18:0;;;:9;:18;;;;;;;;;;:28;;13082:6;;13060:9;:28;;13082:6;;13060:28;:::i;:::-;;;;-1:-1:-1;;13104:37:0;;1810:25:1;;;13104:37:0;;;;13121:1;;13104:37;;1798:2:1;1783:18;13104:37:0;;;;;;;12811:399;;:::o;13543:591::-;13627:21;;;13619:67;;;;-1:-1:-1;;;13619:67:0;;7582:2:1;13619:67:0;;;7564:21:1;7621:2;7601:18;;;7594:30;7660:34;7640:18;;;7633:62;7731:3;7711:18;;;7704:31;7752:19;;13619:67:0;7380:397:1;13619:67:0;13786:18;;;13761:22;13786:18;;;;;;;;;;;13823:24;;;;13815:71;;;;-1:-1:-1;;;13815:71:0;;7984:2:1;13815:71:0;;;7966:21:1;8023:2;8003:18;;;7996:30;8062:34;8042:18;;;8035:62;8133:4;8113:18;;;8106:32;8155:19;;13815:71:0;7782:398:1;13815:71:0;13922:18;;;:9;:18;;;;;;;;;;13943:23;;;13922:44;;13988:12;:22;;13960:6;;13922:9;13988:22;;13960:6;;13988:22;:::i;:::-;;;;-1:-1:-1;;14028:37:0;;1810:25:1;;;14054:1:0;;14028:37;;;;;;1798:2:1;1783:18;14028:37:0;1664:177:1;14:332;72:6;125:2;113:9;104:7;100:23;96:32;93:52;;;141:1;138;131:12;93:52;180:9;167:23;230:66;223:5;219:78;212:5;209:89;199:117;;312:1;309;302:12;199:117;335:5;14:332;-1:-1:-1;;;14:332:1:o;543:656::-;655:4;684:2;713;702:9;695:21;745:6;739:13;788:6;783:2;772:9;768:18;761:34;813:1;823:140;837:6;834:1;831:13;823:140;;;932:14;;;928:23;;922:30;898:17;;;917:2;894:26;887:66;852:10;;823:140;;;981:6;978:1;975:13;972:91;;;1051:1;1046:2;1037:6;1026:9;1022:22;1018:31;1011:42;972:91;-1:-1:-1;1115:2:1;1103:15;1120:66;1099:88;1084:104;;;;1190:2;1080:113;;543:656;-1:-1:-1;;;543:656:1:o;1204:196::-;1272:20;;1332:42;1321:54;;1311:65;;1301:93;;1390:1;1387;1380:12;1301:93;1204:196;;;:::o;1405:254::-;1473:6;1481;1534:2;1522:9;1513:7;1509:23;1505:32;1502:52;;;1550:1;1547;1540:12;1502:52;1573:29;1592:9;1573:29;:::i;:::-;1563:39;1649:2;1634:18;;;;1621:32;;-1:-1:-1;;;1405:254:1:o;1846:328::-;1923:6;1931;1939;1992:2;1980:9;1971:7;1967:23;1963:32;1960:52;;;2008:1;2005;1998:12;1960:52;2031:29;2050:9;2031:29;:::i;:::-;2021:39;;2079:38;2113:2;2102:9;2098:18;2079:38;:::i;:::-;2069:48;;2164:2;2153:9;2149:18;2136:32;2126:42;;1846:328;;;;;:::o;2368:186::-;2427:6;2480:2;2468:9;2459:7;2455:23;2451:32;2448:52;;;2496:1;2493;2486:12;2448:52;2519:29;2538:9;2519:29;:::i;2790:260::-;2858:6;2866;2919:2;2907:9;2898:7;2894:23;2890:32;2887:52;;;2935:1;2932;2925:12;2887:52;2958:29;2977:9;2958:29;:::i;:::-;2948:39;;3006:38;3040:2;3029:9;3025:18;3006:38;:::i;:::-;2996:48;;2790:260;;;;;:::o;3055:437::-;3134:1;3130:12;;;;3177;;;3198:61;;3252:4;3244:6;3240:17;3230:27;;3198:61;3305:2;3297:6;3294:14;3274:18;3271:38;3268:218;;;3342:77;3339:1;3332:88;3443:4;3440:1;3433:15;3471:4;3468:1;3461:15;3268:218;;3055:437;;;:::o;3906:184::-;3958:77;3955:1;3948:88;4055:4;4052:1;4045:15;4079:4;4076:1;4069:15;4095:128;4135:3;4166:1;4162:6;4159:1;4156:13;4153:39;;;4172:18;;:::i;:::-;-1:-1:-1;4208:9:1;;4095:128::o;8185:125::-;8225:4;8253:1;8250;8247:8;8244:34;;;8258:18;;:::i;:::-;-1:-1:-1;8295:9:1;;8185:125::o

Swarm Source

ipfs://cf6f2a647337a3023928b1f0a8286454f8c5755dd6ed9bb72c21a4693b3d555b
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.