Contract 0xce899f26928a2b21c6a2fddd393ef37c61dba918 3

 
 
Txn Hash
Method
Block
From
To
Value [Txn Fee]
0xdbf446fd955235f4ae6eb45f30a943164117f7a998361592487988a233c39762Approve409413332023-03-30 14:07:1416 hrs 32 mins ago0x3a77a9c731cbbb2adb54169b2c25a39a12b0cf18 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.008018407809 172.172288283
0x6609d29081903ae484d0c9b10153e4226c1af7a4887212a230a449ec7f92bff0Approve409297752023-03-30 7:04:3523 hrs 34 mins ago0x00801fcb3792228b6a0d2b50b4b27fb47eab085d IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.003381861676 139.240022893
0x42688eb942c9bace4eec481a56b1c31e81edc17900598ebae215a5f21f37181eApprove408857102023-03-29 3:31:362 days 3 hrs ago0xe4ad8b2c82f72851d32379ee495868974b206b9b IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.003204737988 108.738395386
0x4e6424896b396a8ff2d4641116e736673f79d20849486062b41a57d236b83eb6Approve408856462023-03-29 3:29:202 days 3 hrs ago0xe4ad8b2c82f72851d32379ee495868974b206b9b IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.002893308609 109.711383658
0x18e358f68bef38980e6590b8b063df16fca3d8ef83fb77cd00c7719c986adfb3Approve408856082023-03-29 3:28:002 days 3 hrs ago0xe4ad8b2c82f72851d32379ee495868974b206b9b IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.004760407364 102.878789867
0x4ddfaca9d8aabff37d4a7ab3d4cda875f7f8cde88c16c603a61164468dfffdc5Approve408644252023-03-28 13:51:062 days 16 hrs ago0x9f4132f6c4eff3433e06c120c6e04c0e40cf63cc IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.005265679698199.760231348
0x9d7d8d9839f77dcfdc5f49bb6194170cbbebc8b5a20f1ddb068cd699149e3ca4Approve408643962023-03-28 13:50:042 days 16 hrs ago0x9f4132f6c4eff3433e06c120c6e04c0e40cf63cc IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.009127353273197.305518224
0x2dd493e6e37817b8e2f63dcd0bee347c4cf834b793116bc103502f3fd7ef8708Approve408440802023-03-28 0:57:213 days 5 hrs ago psbi28.nft  IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.00215065636981.811334817
0xec95974269501fcd9d154a1fdf221588544b01d52672d50a1da04d1ccd764908Approve408440612023-03-28 0:56:393 days 5 hrs ago psbi28.nft  IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.00201505582982.965078615
0x5cda6fba942041d69a253fc029b6a8320e7d0a7ac9849840adad90aca266a841Approve408399752023-03-27 22:16:143 days 8 hrs ago0x7db53a688f03480e6e63ecc39fa5e1ae2ad1216e IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.002655351302 109.327705157
0x0039fa5ffcb75e1cf55b7da991cdf4a9bdf8fae6479753d49276f44c1a309a93Approve408279202023-03-27 14:30:083 days 16 hrs ago braavos.blockchain  IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.009985944365 411.147248265
0xc43ea812dfc85aed02849280c353b0e7ff0a390cc1fc8442dc7a02cdd6de61faApprove408267702023-03-27 13:46:503 days 16 hrs ago brewue69.zil  IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.0069806255 287.410470194
0x420e553ef282f78198bace051cd99f4abe6e6467cd74eb92243c5f9bfad82922Approve408051152023-03-26 23:38:074 days 7 hrs ago0x3790cd6a40abb52e7f994a20b4214ac22bf4bd2e IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.003560252929 76.446210803
0x0ad89ae42917f064089ba07fe9088b83b65b4af142d6a222cd5cc68530c19adeApprove407399732023-03-25 5:29:176 days 1 hr ago0x36d6bdac809826355078bb9b1cd0701faf1f2729 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.001889671552 77.802682491
0x172dcf1d28b3beb782c7de67c11dd5e1f07f397356bf68b1a3a2a862b62c6436Execute Meta Tra...407336652023-03-25 1:34:556 days 5 hrs ago0xe5c3b9830a5a46847516c6b501f22d7510448636 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.006310373311 95.597232411
0x5907aa17c8f7d34a03ee9d1e8981a1e6afa8f096d7793551d8e7aac204c2f7d1Transfer407070342023-03-24 8:28:356 days 22 hrs ago0xe560514c548cf20a20b1b625348e0d53a8a5d6d2 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.005785422857 111.735155033
0x7b00b923d68a424b3845dc5f3659d8a0423957ce43194db41ef98ec480336d48Transfer407070182023-03-24 8:28:016 days 22 hrs ago0xe560514c548cf20a20b1b625348e0d53a8a5d6d2 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.006264019967 120.950375901
0xcb9a7ef4373af540777d65f6f555d7e11364986b3066dcbb957a49e41cc2398aTransfer407070022023-03-24 8:27:276 days 22 hrs ago0xe560514c548cf20a20b1b625348e0d53a8a5d6d2 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.004646333501 133.938699971
0xb53c0c7b9d4b9361857598b2c12790f276e3172b3506976eaf7a9acdfc1cdf4dTransfer407069882023-03-24 8:26:516 days 22 hrs ago0xe560514c548cf20a20b1b625348e0d53a8a5d6d2 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.006672460809 128.83685672
0xc3566fff1f32625e669c60cf0146013c905097191591f80698d74e8f3934b635Transfer407069452023-03-24 8:24:556 days 22 hrs ago0xe560514c548cf20a20b1b625348e0d53a8a5d6d2 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.005389225424 104.059189505
0xd2f006099f05c6fe08b79cf610585b5f166cbe861f75fc9209fb187c60556269Transfer407069012023-03-24 8:23:216 days 22 hrs ago0xe560514c548cf20a20b1b625348e0d53a8a5d6d2 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.005527115659 106.721677142
0x83986baddcbe619e4b1d6cefaeb5fe97dfb3d215de43a2383e8ee6365be35ccdTransfer407068812023-03-24 8:22:396 days 22 hrs ago0xe560514c548cf20a20b1b625348e0d53a8a5d6d2 IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.005512046476 106.430710109
0x5f239873a8d31c527123da54343c816ebe964e73538c3722f30103e17315a411Approve406929192023-03-23 23:57:507 days 6 hrs ago0xe80795e0f900429d2db3a14cf1461311c8e2a1de IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.003006568371 64.557424452
0x9d096ed22073af9af0e512fb9f6e29f4b7a7b7e940e92f496ca50d1591412a37Approve406921542023-03-23 23:29:447 days 7 hrs ago cryptolover92.wallet  IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.001779015078 73.246668232
0x97f11cd22e448d4113f2a4e026af41eb1c5099fb10601ae6645da6962ae2080fApprove406872052023-03-23 20:27:017 days 10 hrs ago0x9d70c7fc7e403b88ef65ea7581dd209314fce6df IN  0xce899f26928a2b21c6a2fddd393ef37c61dba9180 MATIC0.00160487797 66.076991537
[ Download CSV Export 
Parent Txn Hash Block From To Value
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
ChildMintableERC20

Compiler Version
v0.6.6+commit.6c089d02

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license

Contract Source Code (Solidity)

/**
 *Submitted for verification at polygonscan.com on 2021-06-09
*/

// File: @openzeppelin/contracts/GSN/Context.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

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

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

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts/math/SafeMath.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

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

    return c;
  }

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

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

    return c;
  }

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

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

    return c;
  }

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

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

    return c;
  }

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

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

// File: @openzeppelin/contracts/utils/Address.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.2;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
  /**
   * @dev Returns true if `account` is a contract.
   *
   * [IMPORTANT]
   * ====
   * It is unsafe to assume that an address for which this function returns
   * false is an externally-owned account (EOA) and not a contract.
   *
   * Among others, `isContract` will return false for the following
   * types of addresses:
   *
   *  - an externally-owned account
   *  - a contract in construction
   *  - an address where a contract will be created
   *  - an address where a contract lived, but was destroyed
   * ====
   */
  function isContract(address account) internal view returns (bool) {
    // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
    // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
    // for accounts without code, i.e. `keccak256('')`
    bytes32 codehash;
    bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
    // solhint-disable-next-line no-inline-assembly
    assembly { codehash := extcodehash(account) }
    return (codehash != accountHash && codehash != 0x0);
  }

  /**
   * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
   * `recipient`, forwarding all available gas and reverting on errors.
   *
   * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
   * of certain opcodes, possibly making contracts go over the 2300 gas limit
   * imposed by `transfer`, making them unable to receive funds via
   * `transfer`. {sendValue} removes this limitation.
   *
   * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
   *
   * IMPORTANT: because control is transferred to `recipient`, care must be
   * taken to not create reentrancy vulnerabilities. Consider using
   * {ReentrancyGuard} or the
   * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
   */
  function sendValue(address payable recipient, uint256 amount) internal {
    require(address(this).balance >= amount, "Address: insufficient balance");

    // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
    (bool success, ) = recipient.call{ value: amount }("");
    require(success, "Address: unable to send value, recipient may have reverted");
  }

  /**
   * @dev Performs a Solidity function call using a low level `call`. A
   * plain`call` is an unsafe replacement for a function call: use this
   * function instead.
   *
   * If `target` reverts with a revert reason, it is bubbled up by this
   * function (like regular Solidity function calls).
   *
   * Returns the raw returned data. To convert to the expected return value,
   * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
   *
   * Requirements:
   *
   * - `target` must be a contract.
   * - calling `target` with `data` must not revert.
   *
   * _Available since v3.1._
   */
  function functionCall(address target, bytes memory data) internal returns (bytes memory) {
    return functionCall(target, data, "Address: low-level call failed");
  }

  /**
   * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
   * `errorMessage` as a fallback revert reason when `target` reverts.
   *
   * _Available since v3.1._
   */
  function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
    return _functionCallWithValue(target, data, 0, errorMessage);
  }

  /**
   * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
   * but also transferring `value` wei to `target`.
   *
   * Requirements:
   *
   * - the calling contract must have an ETH balance of at least `value`.
   * - the called Solidity function must be `payable`.
   *
   * _Available since v3.1._
   */
  function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
    return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
  }

  /**
   * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
   * with `errorMessage` as a fallback revert reason when `target` reverts.
   *
   * _Available since v3.1._
   */
  function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
    require(address(this).balance >= value, "Address: insufficient balance for call");
    return _functionCallWithValue(target, data, value, errorMessage);
  }

  function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
    require(isContract(target), "Address: call to non-contract");

    // solhint-disable-next-line avoid-low-level-calls
    (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
    if (success) {
      return returndata;
    } else {
      // Look for revert reason and bubble it up if present
      if (returndata.length > 0) {
        // The easiest way to bubble the revert reason is using memory via assembly

        // solhint-disable-next-line no-inline-assembly
        assembly {
          let returndata_size := mload(returndata)
          revert(add(32, returndata), returndata_size)
        }
      } else {
        revert(errorMessage);
      }
    }
  }
}

// File: @openzeppelin/contracts/token/ERC20/ERC20.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;





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

  mapping (address => uint256) private _balances;

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

  uint256 private _totalSupply;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    _beforeTokenTransfer(sender, recipient, amount);

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

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

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

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts/utils/EnumerableSet.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256`
 * (`UintSet`) are supported.
 */
library EnumerableSet {
  // To implement this library for multiple types with as little code
  // repetition as possible, we write it in terms of a generic Set type with
  // bytes32 values.
  // The Set implementation uses private functions, and user-facing
  // implementations (such as AddressSet) are just wrappers around the
  // underlying Set.
  // This means that we can only create new EnumerableSets for types that fit
  // in bytes32.

  struct Set {
    // Storage of set values
    bytes32[] _values;

    // Position of the value in the `values` array, plus 1 because index 0
    // means a value is not in the set.
    mapping (bytes32 => uint256) _indexes;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function _add(Set storage set, bytes32 value) private returns (bool) {
    if (!_contains(set, value)) {
      set._values.push(value);
      // The value is stored at length-1, but we add 1 to all indexes
      // and use 0 as a sentinel value
      set._indexes[value] = set._values.length;
      return true;
    } else {
      return false;
    }
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function _remove(Set storage set, bytes32 value) private returns (bool) {
    // We read and store the value's index to prevent multiple reads from the same storage slot
    uint256 valueIndex = set._indexes[value];

    if (valueIndex != 0) { // Equivalent to contains(set, value)
      // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
      // the array, and then remove the last element (sometimes called as 'swap and pop').
      // This modifies the order of the array, as noted in {at}.

      uint256 toDeleteIndex = valueIndex - 1;
      uint256 lastIndex = set._values.length - 1;

      // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
      // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

      bytes32 lastvalue = set._values[lastIndex];

      // Move the last value to the index where the value to delete is
      set._values[toDeleteIndex] = lastvalue;
      // Update the index for the moved value
      set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based

      // Delete the slot where the moved value was stored
      set._values.pop();

      // Delete the index for the deleted slot
      delete set._indexes[value];

      return true;
    } else {
      return false;
    }
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function _contains(Set storage set, bytes32 value) private view returns (bool) {
    return set._indexes[value] != 0;
  }

  /**
   * @dev Returns the number of values on the set. O(1).
   */
  function _length(Set storage set) private view returns (uint256) {
    return set._values.length;
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function _at(Set storage set, uint256 index) private view returns (bytes32) {
    require(set._values.length > index, "EnumerableSet: index out of bounds");
    return set._values[index];
  }

  // AddressSet

  struct AddressSet {
    Set _inner;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function add(AddressSet storage set, address value) internal returns (bool) {
    return _add(set._inner, bytes32(uint256(value)));
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function remove(AddressSet storage set, address value) internal returns (bool) {
    return _remove(set._inner, bytes32(uint256(value)));
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function contains(AddressSet storage set, address value) internal view returns (bool) {
    return _contains(set._inner, bytes32(uint256(value)));
  }

  /**
   * @dev Returns the number of values in the set. O(1).
   */
  function length(AddressSet storage set) internal view returns (uint256) {
    return _length(set._inner);
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function at(AddressSet storage set, uint256 index) internal view returns (address) {
    return address(uint256(_at(set._inner, index)));
  }


  // UintSet

  struct UintSet {
    Set _inner;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function add(UintSet storage set, uint256 value) internal returns (bool) {
    return _add(set._inner, bytes32(value));
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function remove(UintSet storage set, uint256 value) internal returns (bool) {
    return _remove(set._inner, bytes32(value));
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function contains(UintSet storage set, uint256 value) internal view returns (bool) {
    return _contains(set._inner, bytes32(value));
  }

  /**
   * @dev Returns the number of values on the set. O(1).
   */
  function length(UintSet storage set) internal view returns (uint256) {
    return _length(set._inner);
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function at(UintSet storage set, uint256 index) internal view returns (uint256) {
    return uint256(_at(set._inner, index));
  }
}

// File: @openzeppelin/contracts/access/AccessControl.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;




/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context {
  using EnumerableSet for EnumerableSet.AddressSet;
  using Address for address;

  struct RoleData {
    EnumerableSet.AddressSet members;
    bytes32 adminRole;
  }

  mapping (bytes32 => RoleData) private _roles;

  bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

  /**
   * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
   *
   * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
   * {RoleAdminChanged} not being emitted signaling this.
   *
   * _Available since v3.1._
   */
  event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

  /**
   * @dev Emitted when `account` is granted `role`.
   *
   * `sender` is the account that originated the contract call, an admin role
   * bearer except when using {_setupRole}.
   */
  event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

  /**
   * @dev Emitted when `account` is revoked `role`.
   *
   * `sender` is the account that originated the contract call:
   *   - if using `revokeRole`, it is the admin role bearer
   *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
   */
  event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

  /**
   * @dev Returns `true` if `account` has been granted `role`.
   */
  function hasRole(bytes32 role, address account) public view returns (bool) {
    return _roles[role].members.contains(account);
  }

  /**
   * @dev Returns the number of accounts that have `role`. Can be used
   * together with {getRoleMember} to enumerate all bearers of a role.
   */
  function getRoleMemberCount(bytes32 role) public view returns (uint256) {
    return _roles[role].members.length();
  }

  /**
   * @dev Returns one of the accounts that have `role`. `index` must be a
   * value between 0 and {getRoleMemberCount}, non-inclusive.
   *
   * Role bearers are not sorted in any particular way, and their ordering may
   * change at any point.
   *
   * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
   * you perform all queries on the same block. See the following
   * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
   * for more information.
   */
  function getRoleMember(bytes32 role, uint256 index) public view returns (address) {
    return _roles[role].members.at(index);
  }

  /**
   * @dev Returns the admin role that controls `role`. See {grantRole} and
   * {revokeRole}.
   *
   * To change a role's admin, use {_setRoleAdmin}.
   */
  function getRoleAdmin(bytes32 role) public view returns (bytes32) {
    return _roles[role].adminRole;
  }

  /**
   * @dev Grants `role` to `account`.
   *
   * If `account` had not been already granted `role`, emits a {RoleGranted}
   * event.
   *
   * Requirements:
   *
   * - the caller must have ``role``'s admin role.
   */
  function grantRole(bytes32 role, address account) public virtual {
    require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to grant");

    _grantRole(role, account);
  }

  /**
   * @dev Revokes `role` from `account`.
   *
   * If `account` had been granted `role`, emits a {RoleRevoked} event.
   *
   * Requirements:
   *
   * - the caller must have ``role``'s admin role.
   */
  function revokeRole(bytes32 role, address account) public virtual {
    require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to revoke");

    _revokeRole(role, account);
  }

  /**
   * @dev Revokes `role` from the calling account.
   *
   * Roles are often managed via {grantRole} and {revokeRole}: this function's
   * purpose is to provide a mechanism for accounts to lose their privileges
   * if they are compromised (such as when a trusted device is misplaced).
   *
   * If the calling account had been granted `role`, emits a {RoleRevoked}
   * event.
   *
   * Requirements:
   *
   * - the caller must be `account`.
   */
  function renounceRole(bytes32 role, address account) public virtual {
    require(account == _msgSender(), "AccessControl: can only renounce roles for self");

    _revokeRole(role, account);
  }

  /**
   * @dev Grants `role` to `account`.
   *
   * If `account` had not been already granted `role`, emits a {RoleGranted}
   * event. Note that unlike {grantRole}, this function doesn't perform any
   * checks on the calling account.
   *
   * [WARNING]
   * ====
   * This function should only be called from the constructor when setting
   * up the initial roles for the system.
   *
   * Using this function in any other way is effectively circumventing the admin
   * system imposed by {AccessControl}.
   * ====
   */
  function _setupRole(bytes32 role, address account) internal virtual {
    _grantRole(role, account);
  }

  /**
   * @dev Sets `adminRole` as ``role``'s admin role.
   *
   * Emits a {RoleAdminChanged} event.
   */
  function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
    emit RoleAdminChanged(role, _roles[role].adminRole, adminRole);
    _roles[role].adminRole = adminRole;
  }

  function _grantRole(bytes32 role, address account) private {
    if (_roles[role].members.add(account)) {
      emit RoleGranted(role, account, _msgSender());
    }
  }

  function _revokeRole(bytes32 role, address account) private {
    if (_roles[role].members.remove(account)) {
      emit RoleRevoked(role, account, _msgSender());
    }
  }
}

// File: contracts/common/AccessControlMixin.sol

pragma solidity 0.6.6;


contract AccessControlMixin is AccessControl {
  string private _revertMsg;
  function _setupContractId(string memory contractId) internal {
    _revertMsg = string(abi.encodePacked(contractId, ": INSUFFICIENT_PERMISSIONS"));
  }

  modifier only(bytes32 role) {
    require(
      hasRole(role, _msgSender()),
      _revertMsg
    );
    _;
  }
}

// File: contracts/child/ChildToken/IChildToken.sol

pragma solidity 0.6.6;

interface IChildToken {
  function deposit(address user, bytes calldata depositData) external;
}

// File: contracts/common/Initializable.sol

pragma solidity 0.6.6;

contract Initializable {
  bool inited = false;

  modifier initializer() {
    require(!inited, "already inited");
    _;
    inited = true;
  }
}

// File: contracts/common/EIP712Base.sol

pragma solidity 0.6.6;


contract EIP712Base is Initializable {
  struct EIP712Domain {
    string name;
    string version;
    address verifyingContract;
    bytes32 salt;
  }

  string constant public ERC712_VERSION = "1";

  bytes32 internal constant EIP712_DOMAIN_TYPEHASH = keccak256(
    bytes(
      "EIP712Domain(string name,string version,address verifyingContract,bytes32 salt)"
    )
  );
  bytes32 internal domainSeperator;

  // supposed to be called once while initializing.
  // one of the contractsa that inherits this contract follows proxy pattern
  // so it is not possible to do this in a constructor
  function _initializeEIP712(
    string memory name
  )
  internal
  initializer
  {
    _setDomainSeperator(name);
  }

  function _setDomainSeperator(string memory name) internal {
    domainSeperator = keccak256(
      abi.encode(
        EIP712_DOMAIN_TYPEHASH,
        keccak256(bytes(name)),
        keccak256(bytes(ERC712_VERSION)),
        address(this),
        bytes32(getChainId())
      )
    );
  }

  function getDomainSeperator() public view returns (bytes32) {
    return domainSeperator;
  }

  function getChainId() public pure returns (uint256) {
    uint256 id;
    assembly {
      id := chainid()
    }
    return id;
  }

  /**
   * Accept message hash and returns hash message in EIP712 compatible form
   * So that it can be used to recover signer from signature signed using EIP712 formatted data
   * https://eips.ethereum.org/EIPS/eip-712
   * "\\x19" makes the encoding deterministic
   * "\\x01" is the version byte to make it compatible to EIP-191
   */
  function toTypedMessageHash(bytes32 messageHash)
  internal
  view
  returns (bytes32)
  {
    return
    keccak256(
      abi.encodePacked("\x19\x01", getDomainSeperator(), messageHash)
    );
  }
}

// File: contracts/common/NativeMetaTransaction.sol

pragma solidity 0.6.6;



contract NativeMetaTransaction is EIP712Base {
  using SafeMath for uint256;
  bytes32 private constant META_TRANSACTION_TYPEHASH = keccak256(
    bytes(
      "MetaTransaction(uint256 nonce,address from,bytes functionSignature)"
    )
  );
  event MetaTransactionExecuted(
    address userAddress,
    address payable relayerAddress,
    bytes functionSignature
  );
  mapping(address => uint256) nonces;

  /*
   * Meta transaction structure.
   * No point of including value field here as if user is doing value transfer then he has the funds to pay for gas
   * He should call the desired function directly in that case.
   */
  struct MetaTransaction {
    uint256 nonce;
    address from;
    bytes functionSignature;
  }

  function executeMetaTransaction(
    address userAddress,
    bytes memory functionSignature,
    bytes32 sigR,
    bytes32 sigS,
    uint8 sigV
  ) public payable returns (bytes memory) {
    MetaTransaction memory metaTx = MetaTransaction({
    nonce: nonces[userAddress],
    from: userAddress,
    functionSignature: functionSignature
    });

    require(
      verify(userAddress, metaTx, sigR, sigS, sigV),
      "Signer and signature do not match"
    );

    // increase nonce for user (to avoid re-use)
    nonces[userAddress] = nonces[userAddress].add(1);

    emit MetaTransactionExecuted(
      userAddress,
      msg.sender,
      functionSignature
    );

    // Append userAddress and relayer address at the end to extract it from calling context
    (bool success, bytes memory returnData) = address(this).call(
      abi.encodePacked(functionSignature, userAddress)
    );
    require(success, "Function call not successful");

    return returnData;
  }

  function hashMetaTransaction(MetaTransaction memory metaTx)
  internal
  pure
  returns (bytes32)
  {
    return
    keccak256(
      abi.encode(
        META_TRANSACTION_TYPEHASH,
        metaTx.nonce,
        metaTx.from,
        keccak256(metaTx.functionSignature)
      )
    );
  }

  function getNonce(address user) public view returns (uint256 nonce) {
    nonce = nonces[user];
  }

  function verify(
    address signer,
    MetaTransaction memory metaTx,
    bytes32 sigR,
    bytes32 sigS,
    uint8 sigV
  ) internal view returns (bool) {
    require(signer != address(0), "NativeMetaTransaction: INVALID_SIGNER");
    return
    signer ==
    ecrecover(
      toTypedMessageHash(hashMetaTransaction(metaTx)),
      sigV,
      sigR,
      sigS
    );
  }
}

// File: contracts/common/ContextMixin.sol

pragma solidity 0.6.6;

abstract contract ContextMixin {
  function msgSender()
  internal
  view
  returns (address payable sender)
  {
    if (msg.sender == address(this)) {
      bytes memory array = msg.data;
      uint256 index = msg.data.length;
      assembly {
      // Load the 32 bytes word from memory with the address on the lower 20 bytes, and mask those.
        sender := and(
        mload(add(array, index)),
        0xffffffffffffffffffffffffffffffffffffffff
        )
      }
    } else {
      sender = msg.sender;
    }
    return sender;
  }
}

// File: contracts/child/ChildToken/ChildMintableERC20.sol

pragma solidity 0.6.6;







contract ChildMintableERC20 is
ERC20,
IChildToken,
AccessControlMixin,
NativeMetaTransaction,
ContextMixin
{
  bytes32 public constant DEPOSITOR_ROLE = keccak256("DEPOSITOR_ROLE");

  constructor(
    string memory name_,
    string memory symbol_,
    uint8 decimals_,
    address childChainManager
  ) public ERC20(name_, symbol_) {
    _setupContractId("ChildMintableERC20");
    _setupDecimals(decimals_);
    _setupRole(DEFAULT_ADMIN_ROLE, _msgSender());
    _setupRole(DEPOSITOR_ROLE, childChainManager);

    _mint(_msgSender(), 10000000000000000000000000); // 10.000.000
    _initializeEIP712(name_);
  }

  // This is to support Native meta transactions
  // never use msg.sender directly, use _msgSender() instead
  function _msgSender()
  internal
  override
  view
  returns (address payable sender)
  {
    return ContextMixin.msgSender();
  }

  /**
   * @notice called when token is deposited on root chain
   * @dev Should be callable only by ChildChainManager
   * Should handle deposit by minting the required amount for user
   * Make sure minting is done only by this function
   * @param user user address for whom deposit is being done
   * @param depositData abi encoded amount
   */
  function deposit(address user, bytes calldata depositData)
  external
  override
  only(DEPOSITOR_ROLE)
  {
    uint256 amount = abi.decode(depositData, (uint256));
    _mint(user, amount);
  }

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

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"uint8","name":"decimals_","type":"uint8"},{"internalType":"address","name":"childChainManager","type":"address"}],"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":false,"internalType":"address","name":"userAddress","type":"address"},{"indexed":false,"internalType":"address payable","name":"relayerAddress","type":"address"},{"indexed":false,"internalType":"bytes","name":"functionSignature","type":"bytes"}],"name":"MetaTransactionExecuted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","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":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEPOSITOR_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ERC712_VERSION","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"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":[],"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":"user","type":"address"},{"internalType":"bytes","name":"depositData","type":"bytes"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"userAddress","type":"address"},{"internalType":"bytes","name":"functionSignature","type":"bytes"},{"internalType":"bytes32","name":"sigR","type":"bytes32"},{"internalType":"bytes32","name":"sigS","type":"bytes32"},{"internalType":"uint8","name":"sigV","type":"uint8"}],"name":"executeMetaTransaction","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"getChainId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getDomainSeperator","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getNonce","outputs":[{"internalType":"uint256","name":"nonce","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getRoleMember","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleMemberCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","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":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"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":"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)

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

-----Decoded View---------------
Arg [0] : name_ (string): Museum of Crypto Art
Arg [1] : symbol_ (string): MOCA
Arg [2] : decimals_ (uint8): 18
Arg [3] : childChainManager (address): 0xa6fa4fb5f76172d178d61b04b0ecd319c5d1c0aa

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000012
Arg [3] : 000000000000000000000000a6fa4fb5f76172d178d61b04b0ecd319c5d1c0aa
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000014
Arg [5] : 4d757365756d206f662043727970746f20417274000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [7] : 4d4f434100000000000000000000000000000000000000000000000000000000


Deployed ByteCode Sourcemap

46224:1781:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;12:1:-1;9;2:12;16895:77:0;;5:9:-1;2:2;;;27:1;24;17:12;2:2;16895:77:0;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;8:100:-1;33:3;30:1;27:10;8:100;;;90:11;;;84:18;71:11;;;64:39;52:2;45:10;8:100;;;12:14;16895:77:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;18859:159;;5:9:-1;2:2;;;27:1;24;17:12;2:2;18859:159:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;;;;;;18859:159:0;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;43664:1006;;;;;;15:3:-1;10;7:12;4:2;;;32:1;29;22:12;4:2;-1:-1;;;;;43664:1006:0;;;;;;;;;;;;;;;27:11:-1;11:28;;8:2;;;52:1;49;42:12;8:2;43664:1006:0;;41:9:-1;34:4;18:14;14:25;11:40;8:2;;;64:1;61;54:12;8:2;43664:1006:0;;;;;;100:9:-1;95:1;81:12;77:20;67:8;63:35;60:50;39:11;25:12;22:29;11:107;8:2;;;131:1;128;121:12;8:2;43664:1006:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30:3:-1;22:6;14;1:33;99:1;81:16;;74:27;;;;-1:-1;43664:1006:0;;-1:-1:-1;;43664:1006:0;;;-1:-1:-1;;;43664:1006:0;;;;;;;;;;;:::i;41129:43::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;41129:43:0;;;:::i;17906:94::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;17906:94:0;;;:::i;:::-;;;;;;;;;;;;;;;;42019:95;;5:9:-1;2:2;;;27:1;24;17:12;2:2;42019:95:0;;;:::i;19466:307::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;19466:307:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;;;;;;19466:307:0;;;;;;;;;;;;;;;;;:::i;37017:108::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;37017:108:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;37017:108:0;;:::i;44982:101::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;44982:101:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;44982:101:0;-1:-1:-1;;;;;44982:101:0;;:::i;47919:83::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;47919:83:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;47919:83:0;;:::i;:::-;;37365:217;;5:9:-1;2:2;;;27:1;24;17:12;2:2;37365:217:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;37365:217:0;;;;;;-1:-1:-1;;;;;37365:217:0;;:::i;17772:77::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;17772:77:0;;;:::i;:::-;;;;;;;;;;;;;;;;;;;42120:137;;5:9:-1;2:2;;;27:1;24;17:12;2:2;42120:137:0;;;:::i;38504:199::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;38504:199:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;38504:199:0;;;;;;-1:-1:-1;;;;;38504:199:0;;:::i;20156:208::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;20156:208:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;;;;;;20156:208:0;;;;;;;;:::i;18055:113::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;18055:113:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;18055:113:0;-1:-1:-1;;;;;18055:113:0;;:::i;36710:132::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;36710:132:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;36710:132:0;;;;;;;:::i;:::-;;;;-1:-1:-1;;;;;36710:132:0;;;;;;;;;;;;;;35719:133;;5:9:-1;2:2;;;27:1;24;17:12;2:2;35719:133:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;35719:133:0;;;;;;-1:-1:-1;;;;;35719:133:0;;:::i;17081:81::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;17081:81:0;;;:::i;34520:49::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;34520:49:0;;;:::i;46342:68::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;46342:68:0;;;:::i;20837:259::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;20837:259:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;;;;;;20837:259:0;;;;;;;;:::i;18363:165::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;18363:165:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;;;;;;18363:165:0;;;;;;;;:::i;36016:121::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;36016:121:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;36016:121:0;;:::i;47476:200::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;47476:200:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;;;;;47476:200:0;;;;;;;;;;;;;;;27:11:-1;11:28;;8:2;;;52:1;49;42:12;8:2;47476:200:0;;41:9:-1;34:4;18:14;14:25;11:40;8:2;;;64:1;61;54:12;8:2;47476:200:0;;;;;;100:9:-1;95:1;81:12;77:20;67:8;63:35;60:50;39:11;25:12;22:29;11:107;8:2;;;131:1;128;121:12;8:2;-1:-1;47476:200:0;;-1:-1:-1;47476:200:0;-1:-1:-1;47476:200:0;:::i;37807:220::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;37807:220:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;37807:220:0;;;;;;-1:-1:-1;;;;;37807:220:0;;:::i;18583:145::-;;5:9:-1;2:2;;;27:1;24;17:12;2:2;18583:145:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;;;;;;18583:145:0;;;;;;;;;;:::i;16895:77::-;16961:5;16954:12;;;;;;;;-1:-1:-1;;16954:12:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;16932:13;;16954:12;;16961:5;;16954:12;;16961:5;16954:12;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;16895:77;:::o;18859:159::-;18942:4;18955:39;18964:12;:10;:12::i;:::-;18978:7;18987:6;18955:8;:39::i;:::-;-1:-1:-1;19008:4:0;18859:159;;;;;:::o;43664:1006::-;43843:12;43864:29;;:::i;:::-;-1:-1:-1;43896:124:0;;;;;;;;-1:-1:-1;;;;;43926:19:0;;-1:-1:-1;43926:19:0;;;:6;:19;;;;;;;;;43896:124;;;;;;;;;;;44045:45;43933:11;43896:124;44073:4;44079;44085;44045:6;:45::i;:::-;44029:112;;;;-1:-1:-1;;;44029:112:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;44222:19:0;;;;;;:6;:19;;;;;;:26;;44246:1;44222:26;:23;:26;:::i;:::-;-1:-1:-1;;;;;44200:19:0;;;;;;:6;:19;;;;;;;;:48;;;;44262:95;;;;;44314:10;44262:95;;;;;;;;;;;;;;;;;;;;;;;;;;44207:11;;44314:10;;44333:17;;44262:95;;;;;;;;;;;;;;;8:100:-1;33:3;30:1;27:10;8:100;;;90:11;;;84:18;71:11;;;64:39;52:2;45:10;8:100;;;12:14;44262:95:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;44460:12;44474:23;44509:4;-1:-1:-1;;;;;44501:18:0;44545:17;44564:11;44528:48;;;;;;;;;;;;;;;36:153:-1;66:2;61:3;58:11;36:153;;176:10;;164:23;;-1:-1;;139:12;;;;98:2;89:12;;;;114;36:153;;;274:1;267:3;263:2;259:12;254:3;250:22;246:30;315:4;311:9;305:3;299:10;295:26;356:4;350:3;344:10;340:21;389:7;380;377:20;372:3;365:33;3:399;;;44528:48:0;;;;;;;-1:-1:-1;;;;;44528:48:0;-1:-1:-1;;;;;44528:48:0;;;;;;;;;;;;;49:4:-1;39:7;30;26:21;22:32;13:7;6:49;44528:48:0;;;44501:82;;;;;;;;;;;;;36:153:-1;66:2;61:3;58:11;36:153;;176:10;;164:23;;-1:-1;;139:12;;;;98:2;89:12;;;;114;36:153;;;274:1;267:3;263:2;259:12;254:3;250:22;246:30;315:4;311:9;305:3;299:10;295:26;356:4;350:3;344:10;340:21;389:7;380;377:20;372:3;365:33;3:399;;;44501:82:0;;;;;;;;;;;;;;;;;;;;;;;;12:1:-1;19;14:27;;;;67:4;61:11;56:16;;134:4;130:9;123:4;105:16;101:27;97:43;94:1;90:51;84:4;77:65;157:16;154:1;147:27;211:16;208:1;201:4;198:1;194:12;179:49;5:228;;14:27;32:4;27:9;;5:228;;44459:124:0;;;;44598:7;44590:48;;;;;-1:-1:-1;;;44590:48:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;44654:10;43664:1006;-1:-1:-1;;;;;;;;43664:1006:0:o;41129:43::-;;;;;;;;;;;;;;-1:-1:-1;;;41129:43:0;;;;:::o;17906:94::-;17982:12;;17906:94;:::o;42019:95::-;42093:15;;42019:95;:::o;19466:307::-;19572:4;19585:36;19595:6;19603:9;19614:6;19585:9;:36::i;:::-;19628:121;19637:6;19645:12;:10;:12::i;:::-;19659:89;19697:6;19659:89;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;19659:19:0;;;;;;:11;:19;;;;;;19679:12;:10;:12::i;:::-;-1:-1:-1;;;;;19659:33:0;;;;;;;;;;;;-1:-1:-1;19659:33:0;;;:89;;:37;:89;:::i;:::-;19628:8;:121::i;:::-;-1:-1:-1;19763:4:0;19466:307;;;;;:::o;37017:108::-;37074:7;37097:12;;;:6;:12;;;;;:22;;;;37017:108::o;44982:101::-;-1:-1:-1;;;;;45065:12:0;45035:13;45065:12;;;:6;:12;;;;;;;44982:101::o;47919:83::-;47969:27;47975:12;:10;:12::i;:::-;47989:6;47969:5;:27::i;:::-;47919:83;:::o;37365:217::-;37453:12;;;;:6;:12;;;;;:22;;;37445:45;;37477:12;:10;:12::i;:::-;37445:7;:45::i;:::-;37437:105;;;;-1:-1:-1;;;37437:105:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;37551:25;37562:4;37568:7;37551:10;:25::i;:::-;37365:217;;:::o;17772:77::-;17834:9;;;;17772:77;:::o;42120:137::-;42220:9;42120:137;:::o;38504:199::-;38598:12;:10;:12::i;:::-;-1:-1:-1;;;;;38587:23:0;:7;-1:-1:-1;;;;;38587:23:0;;38579:83;;;;-1:-1:-1;;;38579:83:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;38671:26;38683:4;38689:7;38671:11;:26::i;20156:208::-;20244:4;20257:83;20266:12;:10;:12::i;:::-;20280:7;20289:50;20328:10;20289:11;:25;20301:12;:10;:12::i;:::-;-1:-1:-1;;;;;20289:25:0;;;;;;;;;;;;;;;;;-1:-1:-1;20289:25:0;;;:34;;;;;;;;;;;:50;:38;:50;:::i;18055:113::-;-1:-1:-1;;;;;18144:18:0;18121:7;18144:18;;;;;;;;;;;;18055:113::o;36710:132::-;36783:7;36806:12;;;:6;:12;;;;;:30;;36830:5;36806:30;:23;:30;:::i;:::-;36799:37;36710:132;-1:-1:-1;;;36710:132:0:o;35719:133::-;35788:4;35808:12;;;:6;:12;;;;;:38;;35838:7;35808:38;:29;:38;:::i;17081:81::-;17149:7;17142:14;;;;;;;;-1:-1:-1;;17142:14:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;17120:13;;17142:14;;17149:7;;17142:14;;17149:7;17142:14;;;;;;;;;;;;;;;;;;;;;;;;34520:49;34565:4;34520:49;:::o;46342:68::-;46383:27;;;-1:-1:-1;;;46383:27:0;;;;;;;;;;;;46342:68;:::o;20837:259::-;20930:4;20943:129;20952:12;:10;:12::i;:::-;20966:7;20975:96;21014:15;20975:96;;;;;;;;;;;;;;;;;:11;:25;20987:12;:10;:12::i;:::-;-1:-1:-1;;;;;20975:25:0;;;;;;;;;;;;;;;;;-1:-1:-1;20975:25:0;;;:34;;;;;;;;;;;:96;;:38;:96;:::i;18363:165::-;18449:4;18462:42;18472:12;:10;:12::i;:::-;18486:9;18497:6;18462:9;:42::i;36016:121::-;36079:7;36102:12;;;:6;:12;;;;;:29;;:27;:29::i;47476:200::-;46383:27;;;-1:-1:-1;;;46383:27:0;;;;;;;;;;;;40404;46383;40418:12;:10;:12::i;40404:27::-;40440:10;40388:69;;;;;-1:-1:-1;;;40388:69:0;;;;;;;;;;;;-1:-1:-1;;40388:69:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;47593:14:::1;47621:11;;15:2:-1;10:3;7:11;4:2;;;31:1;28::::0;21:12:::1;4:2;-1:-1:::0;47610:34:0::1;::::0;-1:-1:-1;47651:19:0::1;47657:4:::0;47610:34;47651:5:::1;:19::i;:::-;40464:1;47476:200:::0;;;;:::o;37807:220::-;37896:12;;;;:6;:12;;;;;:22;;;37888:45;;37920:12;:10;:12::i;37888:45::-;37880:106;;;;-1:-1:-1;;;37880:106:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;18583:145;-1:-1:-1;;;;;18695:18:0;;;18672:7;18695:18;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;18583:145::o;46976:137::-;47042:22;47083:24;:22;:24::i;:::-;47076:31;;46976:137;:::o;23802:328::-;-1:-1:-1;;;;;23900:19:0;;23892:68;;;;-1:-1:-1;;;23892:68:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;23975:21:0;;23967:68;;;;-1:-1:-1;;;23967:68:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;24044:18:0;;;;;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;:36;;;24092:32;;;;;;;;;;;;;;;;;23802:328;;;:::o;45089:390::-;45245:4;-1:-1:-1;;;;;45266:20:0;;45258:70;;;;-1:-1:-1;;;45258:70:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;45362:111;45380:47;45399:27;45419:6;45399:19;:27::i;:::-;45380:18;:47::i;:::-;45436:4;45449;45462;45362:111;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;8:9:-1;5:2;;;45:16;42:1;39;24:38;77:16;74:1;67:27;5:2;45362:111:0;;;;;;;;-1:-1:-1;;;;;45347:126:0;:6;-1:-1:-1;;;;;45347:126:0;;45335:138;;45089:390;;;;;;;:::o;4637:167::-;4695:7;4723:5;;;4743:6;;;;4735:46;;;;;-1:-1:-1;;;4735:46:0;;;;;;;;;;;;;;;;;;;;;;;;;;;21556:513;-1:-1:-1;;;;;21658:20:0;;21650:70;;;;-1:-1:-1;;;21650:70:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;21735:23:0;;21727:71;;;;-1:-1:-1;;;21727:71:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;21807:47;21828:6;21836:9;21847:6;21807:20;:47::i;:::-;21883:71;21905:6;21883:71;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;21883:17:0;;:9;:17;;;;;;;;;;;;:71;;:21;:71;:::i;:::-;-1:-1:-1;;;;;21863:17:0;;;:9;:17;;;;;;;;;;;:91;;;;21984:20;;;;;;;:32;;22009:6;21984:32;:24;:32;:::i;:::-;-1:-1:-1;;;;;21961:20:0;;;:9;:20;;;;;;;;;;;;:55;;;;22028:35;;;;;;;21961:20;;22028:35;;;;;;;;;;;;;21556:513;;;:::o;5476:178::-;5562:7;5594:12;5586:6;;;;5578:29;;;;-1:-1:-1;;;5578:29:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;23:1:-1;8:100;33:3;30:1;27:10;8:100;;;90:11;;;84:18;71:11;;;64:39;52:2;45:10;8:100;;;12:14;5578:29:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;5626:5:0;;;5476:178::o;22994:396::-;-1:-1:-1;;;;;23074:21:0;;23066:67;;;;-1:-1:-1;;;23066:67:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;23142:49;23163:7;23180:1;23184:6;23142:20;:49::i;:::-;23221:68;23244:6;23221:68;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;23221:18:0;;:9;:18;;;;;;;;;;;;:68;;:22;:68;:::i;:::-;-1:-1:-1;;;;;23200:18:0;;:9;:18;;;;;;;;;;:89;23311:12;;:24;;23328:6;23311:24;:16;:24;:::i;:::-;23296:12;:39;23347:37;;;;;;;;23373:1;;-1:-1:-1;;;;;23347:37:0;;;;;;;;;;;;22994:396;;:::o;39673:172::-;39743:12;;;;:6;:12;;;;;:33;;39768:7;39743:33;:24;:33;:::i;:::-;39739:101;;;39819:12;:10;:12::i;:::-;-1:-1:-1;;;;;39792:40:0;39810:7;-1:-1:-1;;;;;39792:40:0;39804:4;39792:40;;;;;;;;;;39673:172;;:::o;39851:176::-;39922:12;;;;:6;:12;;;;;:36;;39950:7;39922:36;:27;:36;:::i;:::-;39918:104;;;40001:12;:10;:12::i;:::-;-1:-1:-1;;;;;39974:40:0;39992:7;-1:-1:-1;;;;;39974:40:0;39986:4;39974:40;;;;;;;;;;39851:176;;:::o;31143:143::-;31217:7;31256:22;31260:3;31272:5;31256:3;:22::i;30470:152::-;30550:4;30570:46;30580:3;-1:-1:-1;;;;;30600:14:0;;30570:9;:46::i;30700:111::-;30763:7;30786:19;30794:3;30786:7;:19::i;22330:356::-;-1:-1:-1;;;;;22410:21:0;;22402:65;;;;;-1:-1:-1;;;22402:65:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;22476:49;22505:1;22509:7;22518:6;22476:20;:49::i;:::-;22549:12;;:24;;22566:6;22549:24;:16;:24;:::i;:::-;22534:12;:39;-1:-1:-1;;;;;22601:18:0;;:9;:18;;;;;;;;;;;:30;;22624:6;22601:30;:22;:30;:::i;:::-;-1:-1:-1;;;;;22580:18:0;;:9;:18;;;;;;;;;;;:51;;;;22643:37;;;;;;;22580:18;;:9;;22643:37;;;;;;;;;;22330:356;;:::o;45594:523::-;45647:22;45685:10;45707:4;45685:27;45681:411;;;45723:18;45744:8;;45723:29;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30:3:-1;22:6;14;1:33;99:1;81:16;;74:27;;;;-1:-1;;;;45777:8:0;45952:17;45946:24;-1:-1:-1;;;;;45932:102:0;;-1:-1:-1;45810:233:0;;-1:-1:-1;45810:233:0;;-1:-1:-1;46074:10:0;45681:411;45594:523;:::o;44676:300::-;44768:7;43058:90;;;;;;;;;;;;;;;;;43042:111;;;;;;44874:6;:12;;;44897:6;:11;;;44929:6;:24;;;44919:35;;;;;;44817:146;;;;;;;;;;;;;;;;-1:-1:-1;;;;;44817:146:0;-1:-1:-1;;;;;44817:146:0;;;;;;;;;;;;;;;;;;49:4:-1;39:7;30;26:21;22:32;13:7;6:49;44817:146:0;;;44799:171;;;;;;44787:183;;44676:300;;;:::o;42610:206::-;42691:7;42769:20;:18;:20::i;:::-;42791:11;42740:63;;;;;;-1:-1:-1;;;42740:63:0;;;;;;;;;;;;;;;;;;;;;49:4:-1;39:7;30;26:21;22:32;13:7;6:49;42740:63:0;;;42722:88;;;;;;42710:100;;42610:206;;;:::o;25103:92::-;;;;:::o;5065:130::-;5123:7;5146:43;5150:1;5153;5146:43;;;;;;;;;;;;;;;;;:3;:43::i;29950:137::-;30020:4;30040:41;30045:3;-1:-1:-1;;;;;30065:14:0;;30040:4;:41::i;30249:143::-;30322:4;30342:44;30350:3;-1:-1:-1;;;;;30370:14:0;;30342:7;:44::i;29526:194::-;29617:18;;29593:7;;29617:26;-1:-1:-1;29609:73:0;;;;-1:-1:-1;;;29609:73:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;29696:3;:11;;29708:5;29696:18;;;;;;;;;;;;;;;;29689:25;;29526:194;;;;:::o;28890:123::-;28963:4;28983:19;;;:12;;;;;:19;;;;;;:24;;;28890:123::o;29091:103::-;29170:18;;29091:103::o;26872:364::-;26935:4;26953:21;26963:3;26968:5;26953:9;:21::i;:::-;26948:283;;-1:-1:-1;27:10;;39:1;23:18;;;45:23;;26985:11:0;:23;;;;;;;;;;;;;27150:18;;27128:19;;;:12;;;:19;;;;;;:40;;;;27177:11;;26948:283;-1:-1:-1;27218:5:0;27211:12;;27398:1414;27464:4;27595:19;;;:12;;;:19;;;;;;27627:15;;27623:1184;;28032:18;;-1:-1:-1;;27989:14:0;;;;28032:22;;;;27965:21;;28032:3;;:22;;28301;;;;;;;;;;;;;;28281:42;;28435:9;28406:3;:11;;28418:13;28406:26;;;;;;;;;;;;;;;;;;;:38;;;;28500:23;;;28542:1;28500:12;;;:23;;;;;;28526:17;;;28500:43;;28640:17;;28500:3;;28640:17;;;;;;;;;;;;;;;;;;;;;;28723:3;:12;;:19;28736:5;28723:19;;;;;;;;;;;28716:26;;;28760:4;28753:11;;;;;;;;27623:1184;28794:5;28787:12;;;;;46224:1781;;;;;;;;;;;;;;;-1:-1:-1;;;;;46224:1781:0;;;;;;;;;;:::o

Swarm Source

ipfs://6e00613e0d0ded7baa7d55fe995983093873542cec9dc437c6a8749741ef4a86
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
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.