Contract 0x7C9e73d4C71dae564d41F78d56439bB4ba87592f 5

 

Contract Overview

Balance:
0.137322035 BNB

BNB Value:
$56.44 (@ $410.98/BNB)

Token:
 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0xea342c168b227bc2fef10b2939411ec91bf31b8426067e775b3ec974d8997832Work109949642021-09-17 14:06:5232 secs ago0xa44edfa8254fa74c70b248d15669cc1467f20afb IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.008362113
0x2cdc17cfb7e6e57e6fb7e7e74a28f1f63263724d4b529bd846e383c736e0ebbdDeposit109949582021-09-17 14:06:3450 secs ago0x3fe5291991bfa9d462ac05797ee2f1e9eb94752f IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.0005886
0xda097a80d8a1e49b270e7fcd555fb18fe1d752b7031280efc9d5822a315f17ecDeposit109949382021-09-17 14:05:341 min ago0xdce69e383245c7bbeb28889ffaca6c9c26615730 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.00058854
0x87afd4f2e437a2186c24f204f81c91889c83263ced463562e26c4de085183e3eWithdraw109949302021-09-17 14:05:102 mins ago0xb6831d2adaac47476e330279a53daae4e127532f IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.000581825
0x7d477f86ff33eeebbd9ddf871dc1cad610c36ea621c494af950434ff5b5f6b54Withdraw109948702021-09-17 14:02:105 mins ago0xcfb9dbeb609ee8de83c02bb35f505b444550230b IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.000507005
0x863814133ccb49e8dda190a520667c41b89cf92503b736d983a06888a18c7d47Work109948492021-09-17 14:01:076 mins ago0xa6ce8b0560d58309cf3da1ed227c658d0cb70708 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.00611614
0x68bd9d17b8f138dd77b085ec57abc264ee4c08b48601734dfb7b4bdf25ccbbf8Work109948472021-09-17 14:01:016 mins ago0x1c7b7ea252b080837a273d6e64fed68aae57ab94 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.00603215
0x17d811d0219bf6361ef702ffc7cd36d3b1e989fa4627a17af160751493ce8a91Withdraw109948152021-09-17 13:59:257 mins ago0x3ff72c0b03f8dc536cf126e6f88d0f0841417319 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.000581885
0x56561c484b740dcc7bd050f1c2d4ae09da4a21f3f50c64a28a32013605ec0391Work109948002021-09-17 13:58:408 mins ago0x728bd56a965dc3b9ada745301c2f731599d2fe13 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.00773039
0xa1e630ce3de8a2483adc52dc68f10ddd3f4ad3f8960f5b25da03743169e80249Work109947772021-09-17 13:57:319 mins ago0x424a70a8796aa6600ec372fa154a8a4be3c21949 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.007473945
0x45170a304c746d020475adc9c2eb5f38ecfcbcf9d2b2d176c9107b7ea678e885Withdraw109947502021-09-17 13:56:1011 mins ago0x4d761fd893dced52540431b7936cf28df1ea0c42 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.000506945
0xc1c537a0cb0c3268f03ada205846510b60f6d9c9d1c686d6756335c8c43be9f8Withdraw109947482021-09-17 13:56:0411 mins ago0xb6831d2adaac47476e330279a53daae4e127532f IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.00040496
0x17f160c66f4e3153734386b0f1aa447af9eafe70eb174c460f6da9ef6e8424eeWithdraw109947022021-09-17 13:53:4613 mins ago0xb6831d2adaac47476e330279a53daae4e127532f IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.00040502
0x9ec14e35dfebdf08d748f309b3826994b52df418039f5f7e699985b206edfb47Deposit109946282021-09-17 13:50:0417 mins ago0x22af3ab1623fd40a965526164b9f6cf2b03c0fdb IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.000663480163
0x7f74040ddca1620b9315e0a94fda3d7d516013908fd6afc3ad689679281a96c1Withdraw109945572021-09-17 13:46:3120 mins ago0x9af17b8410060e155baf95fd58ebae6e4ab7dc10 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.000698334
0xa6a8979b1f32ea8ea2fbc3a8775a2b527051a980195b259044e2980e8861c4e5Work109944832021-09-17 13:42:4924 mins ago0x424a70a8796aa6600ec372fa154a8a4be3c21949 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.003957505
0xab798297b6ebc65a67010effb61864f983a18f3db9e9e6a42d92183a8b7ba2b1Work109944632021-09-17 13:41:4925 mins ago0xea7024862856ff71ba8b483e17d1c025d9cfee0e IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.00765588
0xc78f4126868fc517b61e2343fd765075516301371a97194c0c6d4d60f0780a43Work109944462021-09-17 13:40:5826 mins ago0x98e118303de6f9a1c1a5b7af43df775a2411b3db IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.006731315
0x193f820c703ffa1ef857fde8125a0d408e3a170c6136b4576713795d875c90bdWork109943962021-09-17 13:38:2828 mins ago0x88d14376d5e19d9e27656b6f0f99523f39ff171a IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.00849858
0x8360a7874306477b99a2cc925c8a137d67302911b7fa4e1d9432c9e71fdf55d1Work109943422021-09-17 13:35:4631 mins ago0x1aae3c997d7bd84efb070c1fa518982330bae6a2 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.008245645
0x3762c919fa45ff8fb0caea520074444cf73bfb0cc42d6f01db2eb473abc94a80Deposit109942642021-09-17 13:31:5135 mins ago0xb5df3aa5e5f7b480f57f144c063062abcc253131 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.0005886
0x1676d7c4ab1dceff8ae4f55f9b27bfdbe3a3000b1e16042cc2b1df9b3972c80eWithdraw109942492021-09-17 13:31:0636 mins ago0x4d761fd893dced52540431b7936cf28df1ea0c42 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.000581825
0x2bbbd8c2abb3f405530f716d247496ee9d0c08eaa7c0d49ecdfd5a7b26144090Withdraw109942462021-09-17 13:30:5736 mins ago0x84febd49070251150033366c01ad1f808962badc IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.000582005
0x09c2743461f7700f78068099cfe5277b764c2d503ddaeb6d14e27f88e46204c1Deposit109941722021-09-17 13:27:1540 mins ago0xb13468336a90abebbd3e8eea9a4878eb199fac21 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.0005886
0xca533abab65542c9221f9ef75b91215bcbcadfe45e10ddbbb68316085f89e689Withdraw109941582021-09-17 13:26:3340 mins ago0xbe52a325244baccfc57e5d33220a707599b101a0 IN  0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB0.00040514
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Latest 25 internal transaction
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0x26155b1b3a009986ac1406ca4360c9d67d5cee10231397112d77678a4b2ce37754713302021-03-07 11:59:27194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f Binance: BUSD Stablecoin0 BNB
0x26155b1b3a009986ac1406ca4360c9d67d5cee10231397112d77678a4b2ce37754713302021-03-07 11:59:27194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd7b805e88c5f52ede71a9b93f7048c8d632dbed40 BNB
0x26155b1b3a009986ac1406ca4360c9d67d5cee10231397112d77678a4b2ce37754713302021-03-07 11:59:27194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd7b805e88c5f52ede71a9b93f7048c8d632dbed40 BNB
0x26155b1b3a009986ac1406ca4360c9d67d5cee10231397112d77678a4b2ce37754713302021-03-07 11:59:27194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f Binance: BUSD Stablecoin0 BNB
0x26155b1b3a009986ac1406ca4360c9d67d5cee10231397112d77678a4b2ce37754713302021-03-07 11:59:27194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f Binance: BUSD Stablecoin0 BNB
0x26155b1b3a009986ac1406ca4360c9d67d5cee10231397112d77678a4b2ce37754713302021-03-07 11:59:27194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd50aab6b210fe049b6c5262f5a7676204699ab8e0 BNB
0x8e38f5245dc53ee9879facd84f9d5b85a75694e545dbad3d71599a9b33ad53ea54713232021-03-07 11:59:06194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd50aab6b210fe049b6c5262f5a7676204699ab8e0 BNB
0x8e38f5245dc53ee9879facd84f9d5b85a75694e545dbad3d71599a9b33ad53ea54713232021-03-07 11:59:06194 days 2 hrs ago 0xa625ab01b08ce023b2a342dbb12a16f2c8489a8f 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB
0xfb052fe3cb00e6b88c542d46e0c05ea0df139c1ce197643cce83641a4f19f34b54713202021-03-07 11:58:57194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f Binance: BUSD Stablecoin0 BNB
0xfb052fe3cb00e6b88c542d46e0c05ea0df139c1ce197643cce83641a4f19f34b54713202021-03-07 11:58:57194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd7b805e88c5f52ede71a9b93f7048c8d632dbed40 BNB
0xfb052fe3cb00e6b88c542d46e0c05ea0df139c1ce197643cce83641a4f19f34b54713202021-03-07 11:58:57194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f Binance: BUSD Stablecoin0 BNB
0xfb052fe3cb00e6b88c542d46e0c05ea0df139c1ce197643cce83641a4f19f34b54713202021-03-07 11:58:57194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd7b805e88c5f52ede71a9b93f7048c8d632dbed40 BNB
0xfb052fe3cb00e6b88c542d46e0c05ea0df139c1ce197643cce83641a4f19f34b54713202021-03-07 11:58:57194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd7b805e88c5f52ede71a9b93f7048c8d632dbed40 BNB
0xfb052fe3cb00e6b88c542d46e0c05ea0df139c1ce197643cce83641a4f19f34b54713202021-03-07 11:58:57194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f Binance: BUSD Stablecoin0 BNB
0xfb052fe3cb00e6b88c542d46e0c05ea0df139c1ce197643cce83641a4f19f34b54713202021-03-07 11:58:57194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd50aab6b210fe049b6c5262f5a7676204699ab8e0 BNB
0x29e35be85635c4f6e95d508345ff5d24dfd12e45135876a07cd30a3b3e74cc3054713142021-03-07 11:58:39194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd50aab6b210fe049b6c5262f5a7676204699ab8e0 BNB
0x29e35be85635c4f6e95d508345ff5d24dfd12e45135876a07cd30a3b3e74cc3054713142021-03-07 11:58:39194 days 2 hrs ago 0xa625ab01b08ce023b2a342dbb12a16f2c8489a8f 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB
0xc64c4a64701f51ff9c457e0f323283dccecec6a542eccd8cef38ba167b05617154713132021-03-07 11:58:36194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd50aab6b210fe049b6c5262f5a7676204699ab8e0 BNB
0xc64c4a64701f51ff9c457e0f323283dccecec6a542eccd8cef38ba167b05617154713132021-03-07 11:58:36194 days 2 hrs ago 0xa625ab01b08ce023b2a342dbb12a16f2c8489a8f 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB
0xc64c4a64701f51ff9c457e0f323283dccecec6a542eccd8cef38ba167b05617154713132021-03-07 11:58:36194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd50aab6b210fe049b6c5262f5a7676204699ab8e0 BNB
0xc64c4a64701f51ff9c457e0f323283dccecec6a542eccd8cef38ba167b05617154713132021-03-07 11:58:36194 days 2 hrs ago 0xa625ab01b08ce023b2a342dbb12a16f2c8489a8f 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB
0x170cd2164a9058b3f8b0b213520578ab2af979e1e63296a4fd82ff5131e454ab54713102021-03-07 11:58:27194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd50aab6b210fe049b6c5262f5a7676204699ab8e0 BNB
0x170cd2164a9058b3f8b0b213520578ab2af979e1e63296a4fd82ff5131e454ab54713102021-03-07 11:58:27194 days 2 hrs ago 0xa625ab01b08ce023b2a342dbb12a16f2c8489a8f 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB
0x170cd2164a9058b3f8b0b213520578ab2af979e1e63296a4fd82ff5131e454ab54713102021-03-07 11:58:27194 days 2 hrs ago 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f 0xd50aab6b210fe049b6c5262f5a7676204699ab8e0 BNB
0x170cd2164a9058b3f8b0b213520578ab2af979e1e63296a4fd82ff5131e454ab54713102021-03-07 11:58:27194 days 2 hrs ago 0xa625ab01b08ce023b2a342dbb12a16f2c8489a8f 0x7c9e73d4c71dae564d41f78d56439bb4ba87592f0 BNB
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Contract Source Code Verified (Similar Match)
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x7e1eA653451352825540618878d5655a97d46748

Contract Name:
AdminUpgradeabilityProxy

Compiler Version
v0.6.8+commit.0bbfe453

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license
/**
 *Submitted for verification at BscScan.com on 2021-02-04
*/

// SPDX-License-Identifier: MIT

// File: MasterChef/contracts-proxy/Proxy.sol

pragma solidity ^0.6.0;

/**
 * @title Proxy
 * @dev Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 */
abstract contract Proxy {
  /**
   * @dev Fallback function.
   * Implemented entirely in `_fallback`.
   */
  fallback () payable external {
    _fallback();
  }

  /**
   * @dev Receive function.
   * Implemented entirely in `_fallback`.
   */
  receive () payable external {
    _fallback();
  }

  /**
   * @return The Address of the implementation.
   */
  function _implementation() internal virtual view returns (address);

  /**
   * @dev Delegates execution to an implementation contract.
   * This is a low level function that doesn't return to its internal call site.
   * It will return to the external caller whatever the implementation returns.
   * @param implementation Address to delegate.
   */
  function _delegate(address implementation) internal {
    assembly {
      // Copy msg.data. We take full control of memory in this inline assembly
      // block because it will not return to Solidity code. We overwrite the
      // Solidity scratch pad at memory position 0.
      calldatacopy(0, 0, calldatasize())

      // Call the implementation.
      // out and outsize are 0 because we don't know the size yet.
      let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

      // Copy the returned data.
      returndatacopy(0, 0, returndatasize())

      switch result
      // delegatecall returns 0 on error.
      case 0 { revert(0, returndatasize()) }
      default { return(0, returndatasize()) }
    }
  }

  /**
   * @dev Function that is run as the first thing in the fallback function.
   * Can be redefined in derived contracts to add functionality.
   * Redefinitions must call super._willFallback().
   */
  function _willFallback() internal virtual {
  }

  /**
   * @dev fallback implementation.
   * Extracted to enable manual triggering.
   */
  function _fallback() internal {
    _willFallback();
    _delegate(_implementation());
  }
}

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

pragma solidity >=0.6.2 <0.8.0;

/**
 * @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) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @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");
        require(isContract(target), "Address: call to non-contract");

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        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: MasterChef/contracts-proxy/UpgradeabilityProxy.sol

pragma solidity ^0.6.0;



/**
 * @title UpgradeabilityProxy
 * @dev This contract implements a proxy that allows to change the
 * implementation address to which it will delegate.
 * Such a change is called an implementation upgrade.
 */
contract UpgradeabilityProxy is Proxy {
  /**
   * @dev Contract constructor.
   * @param _logic Address of the initial implementation.
   * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
   * It should include the signature and the parameters of the function to be called, as described in
   * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
   * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
   */
  constructor(address _logic, bytes memory _data) public payable {
    assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1));
    _setImplementation(_logic);
    if(_data.length > 0) {
      (bool success,) = _logic.delegatecall(_data);
      require(success);
    }
  }  

  /**
   * @dev Emitted when the implementation is upgraded.
   * @param implementation Address of the new implementation.
   */
  event Upgraded(address indexed implementation);

  /**
   * @dev Storage slot with the address of the current implementation.
   * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
   * validated in the constructor.
   */
  bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

  /**
   * @dev Returns the current implementation.
   * @return impl Address of the current implementation
   */
  function _implementation() internal override view returns (address impl) {
    bytes32 slot = IMPLEMENTATION_SLOT;
    assembly {
      impl := sload(slot)
    }
  }

  /**
   * @dev Upgrades the proxy to a new implementation.
   * @param newImplementation Address of the new implementation.
   */
  function _upgradeTo(address newImplementation) internal {
    _setImplementation(newImplementation);
    emit Upgraded(newImplementation);
  }

  /**
   * @dev Sets the implementation address of the proxy.
   * @param newImplementation Address of the new implementation.
   */
  function _setImplementation(address newImplementation) internal {
    require(Address.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address");

    bytes32 slot = IMPLEMENTATION_SLOT;

    assembly {
      sstore(slot, newImplementation)
    }
  }
}

// File: MasterChef/contracts-proxy/AdminUpgradeabilityProxy.sol

pragma solidity ^0.6.0;


/**
 * @title AdminUpgradeabilityProxy
 * @dev This contract combines an upgradeability proxy with an authorization
 * mechanism for administrative tasks.
 * All external functions in this contract must be guarded by the
 * `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
 * feature proposal that would enable this to be done automatically.
 */
contract AdminUpgradeabilityProxy is UpgradeabilityProxy {
  /**
   * Contract constructor.
   * @param _logic address of the initial implementation.
   * @param _admin Address of the proxy administrator.
   * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
   * It should include the signature and the parameters of the function to be called, as described in
   * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
   * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
   */
  constructor(address _logic, address _admin, bytes memory _data) UpgradeabilityProxy(_logic, _data) public payable {
    assert(ADMIN_SLOT == bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1));
    _setAdmin(_admin);
  }

  /**
   * @dev Emitted when the administration has been transferred.
   * @param previousAdmin Address of the previous admin.
   * @param newAdmin Address of the new admin.
   */
  event AdminChanged(address previousAdmin, address newAdmin);

  /**
   * @dev Storage slot with the admin of the contract.
   * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
   * validated in the constructor.
   */

  bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

  /**
   * @dev Modifier to check whether the `msg.sender` is the admin.
   * If it is, it will run the function. Otherwise, it will delegate the call
   * to the implementation.
   */
  modifier ifAdmin() {
    if (msg.sender == _admin()) {
      _;
    } else {
      _fallback();
    }
  }

  /**
   * @return The address of the proxy admin.
   */
  function admin() external ifAdmin returns (address) {
    return _admin();
  }

  /**
   * @return The address of the implementation.
   */
  function implementation() external ifAdmin returns (address) {
    return _implementation();
  }

  /**
   * @dev Changes the admin of the proxy.
   * Only the current admin can call this function.
   * @param newAdmin Address to transfer proxy administration to.
   */
  function changeAdmin(address newAdmin) external ifAdmin {
    require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
    emit AdminChanged(_admin(), newAdmin);
    _setAdmin(newAdmin);
  }

  /**
   * @dev Upgrade the backing implementation of the proxy.
   * Only the admin can call this function.
   * @param newImplementation Address of the new implementation.
   */
  function upgradeTo(address newImplementation) external ifAdmin {
    _upgradeTo(newImplementation);
  }

  /**
   * @dev Upgrade the backing implementation of the proxy and call a function
   * on the new implementation.
   * This is useful to initialize the proxied contract.
   * @param newImplementation Address of the new implementation.
   * @param data Data to send as msg.data in the low level call.
   * It should include the signature and the parameters of the function to be called, as described in
   * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
   */
  function upgradeToAndCall(address newImplementation, bytes calldata data) payable external ifAdmin {
    _upgradeTo(newImplementation);
    (bool success,) = newImplementation.delegatecall(data);
    require(success);
  }

  /**
   * @return adm The admin slot.
   */
  function _admin() internal view returns (address adm) {
    bytes32 slot = ADMIN_SLOT;
    assembly {
      adm := sload(slot)
    }
  }

  /**
   * @dev Sets the address of the proxy admin.
   * @param newAdmin Address of the new proxy admin.
   */
  function _setAdmin(address newAdmin) internal {
    bytes32 slot = ADMIN_SLOT;

    assembly {
      sstore(slot, newAdmin)
    }
  }

  /**
   * @dev Only fall back when the sender is not the admin.
   */
  function _willFallback() internal override virtual {
    require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
    super._willFallback();
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"address","name":"_admin","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Deployed ByteCode Sourcemap

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Swarm Source

ipfs://6e221e2a3547bd97244b05ed46430b1b078ba097cb2a4e25ec3d79cf9ac9f02c
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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