Contract 0x1fa4a73a3f0133f0025378af00236f3abdee5d63

 

Contract Overview

NEAR Protocol: NEAR Token
Balance:
0 BNB

BNB Value:
$0.00

Token:
Txn Hash
Block
From
To
Value [Txn Fee]
0x0323bd4d40c41688dcbe9bb9fff3b9e4647c50379a04bbc831f677a4111c8b1154222162021-03-05 19:02:049 hrs 12 mins agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00053883
0x478181cd84e42878c4ff44c094b9b23852a54fbe5747fa1db05a652bf84be48854207862021-03-05 17:50:3410 hrs 23 mins ago0xd502952fa270db98383b73644c692616f49f51d7 IN  NEAR Protocol: NEAR Token0 BNB0.0005766765
0xcef588be3f70d66f975a061d5d7d2f2f5ec6dc695abbbe438ac6f3162102042354187412021-03-05 16:08:1912 hrs 5 mins agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00038871
0x39f9ece572da61b81986b4cf8e3b9df98708354ee8f354476575da3ed777a80754159322021-03-05 13:47:5214 hrs 26 mins ago0xdd98e0e155969c64204915ffe898977fce7bb311 IN  NEAR Protocol: NEAR Token0 BNB0.00038895
0xde511e6ad8203c79242ff605d6a11a9145e71fcbacbc059933ee58995e53cacc54117702021-03-05 10:19:4617 hrs 54 mins agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00053895
0xd5ce8c719e45e5f76451b1beeb7473ce8730b312fa29f545779135cc08d8c66454107012021-03-05 9:26:1918 hrs 47 mins agoBinance: Hot Wallet IN  NEAR Protocol: NEAR Token0 BNB0.00053895
0x3e416ca7677a5414abad0cb7131692dca4a9e0ad18d6422606db60897ba6a80154052652021-03-05 4:54:3123 hrs 19 mins agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00053895
0xbff9463838a6afec09b90c5af1ac2a744ca1407fa97fa3af3a448d65e79b112f53939162021-03-04 19:27:031 day 8 hrs agoBinance: Hot Wallet IN  NEAR Protocol: NEAR Token0 BNB0.00053883
0x211b74d1d1f810674495df600b85cdb143bfeaa3d57f891c85f3943f2790257e53588962021-03-03 14:14:042 days 14 hrs agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00038883
0xf63b20e58d5b0dddef10bb8cb70064cfb1e0005596722095610662c9cd7f862853511732021-03-03 6:30:102 days 21 hrs ago0x6b148d8a222094db519ae3546d8bf089c78c649d IN  NEAR Protocol: NEAR Token0 BNB0.00023883
0xc63a8d427af15e63009ae508cf3a8a8941199caf18dc9456d3a7f4661269be7353446472021-03-03 1:01:213 days 3 hrs agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00053895
0x0bcf0649c5989f4ce4f93288805026417fd90824ed7ad5a63bea6be72edc5ba553404672021-03-02 21:31:313 days 6 hrs agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00053883
0x2e8edc0dda931f810c4901ef9f63669a5a0de8b1b31bf3b8c2dfa52f40b665f753386402021-03-02 20:00:103 days 8 hrs ago0x52b1c3cc105b81fb64176591002a3e3711057489 IN  NEAR Protocol: NEAR Token0 BNB0.00023883
0x3cf1ea004cc4802b1b4bc80519388a0f966c4d04947ba872f389516d97296b6853385842021-03-02 19:57:223 days 8 hrs ago0x52b1c3cc105b81fb64176591002a3e3711057489 IN  NEAR Protocol: NEAR Token0 BNB0.00038871
0xc1d3922f90d7d5afe6a142025bb84c133cd76b74ab417ec577c54fe1a7d3c93e53304522021-03-02 13:10:253 days 15 hrs ago0x52b1c3cc105b81fb64176591002a3e3711057489 IN  NEAR Protocol: NEAR Token0 BNB0.00053871
0x2542068c358ce0abadde9f60279555c0748aec43e7e5266f1b819a9704ebc45a53278972021-03-02 11:02:403 days 17 hrs agoBinance: Hot Wallet IN  NEAR Protocol: NEAR Token0 BNB0.00038871
0xbe2c81e47806ff0f1a112141b931630ea6284319f60f8ab666fa6d0ab77d383753276882021-03-02 10:52:133 days 17 hrs agoBinance: Hot Wallet IN  NEAR Protocol: NEAR Token0 BNB0.00053847
0x7879588df8fb836251f80946927e1f612a80c28f7891ebf28596da1cd0e4c3a453258272021-03-02 9:19:103 days 18 hrs agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00053883
0x9572092c632a7eacb278056716316a1d21d28ab5ef96e0df0b4545dec4877c3a53185192021-03-02 3:13:274 days 1 hr agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00038871
0x2b1a112a7e476d8c4dad4ab4b7f531a463b3b4f47bff070a25301fa8448e4b6f53177242021-03-02 2:33:424 days 1 hr ago0x4584ffdfb41a989a4832fdee0f13df3da8021235 IN  NEAR Protocol: NEAR Token0 BNB0.00038883
0x6a2ebfa60a8ebc9e58915746d55a29bf5a10a88d31e0ab24662ec9192b343df153088242021-03-01 19:08:044 days 9 hrs ago0x9f014f4e2b2a0d3ebf2d10350265f0c7b864499d IN  NEAR Protocol: NEAR Token0 BNB0.00046936
0x110c1a46a3e446c6a17bf41bfe28f1b9a96ad42726607c5fc3098b3272cfe4ee53085202021-03-01 18:52:524 days 9 hrs agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00053883
0xd315bd6d15a70e81134d39c286c9f0a096f96de82d92b425d7a11e796315f63353001612021-03-01 11:53:054 days 16 hrs agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00053907
0x2e1f020ed3fad77d3409fed072183bc95c84864e9dc9d83b3ce4a07836caeead52818272021-02-28 20:31:175 days 7 hrs agoBinance: Hot Wallet 2 IN  NEAR Protocol: NEAR Token0 BNB0.00053883
0xe10e167cc8346337d0937bebcd1f72f4da21e61d4bf97808e9d5e9a760cc820c52751402021-02-28 14:55:055 days 13 hrs ago0x900eb11f196865a309bd6e8a9fef377e2a78e12e IN  NEAR Protocol: NEAR Token0 BNB0.00107766
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OVERVIEW

NEAR Protocol is a decentralized application platform designed to make apps usable on the web. The network runs on a Proof-of-Stake (PoS) consensus mechanism called Nightshade, which aims to offer scalability and stable fees.

Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x0323bd4d40c41688dcbe9bb9fff3b9e4647c50379a04bbc831f677a4111c8b1154222162021-03-05 19:02:049 hrs 12 mins ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x478181cd84e42878c4ff44c094b9b23852a54fbe5747fa1db05a652bf84be48854207862021-03-05 17:50:3410 hrs 23 mins ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xcef588be3f70d66f975a061d5d7d2f2f5ec6dc695abbbe438ac6f3162102042354187412021-03-05 16:08:1912 hrs 5 mins ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x39f9ece572da61b81986b4cf8e3b9df98708354ee8f354476575da3ed777a80754159322021-03-05 13:47:5214 hrs 26 mins ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xde511e6ad8203c79242ff605d6a11a9145e71fcbacbc059933ee58995e53cacc54117702021-03-05 10:19:4617 hrs 54 mins ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xd5ce8c719e45e5f76451b1beeb7473ce8730b312fa29f545779135cc08d8c66454107012021-03-05 9:26:1918 hrs 47 mins ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x3e416ca7677a5414abad0cb7131692dca4a9e0ad18d6422606db60897ba6a80154052652021-03-05 4:54:3123 hrs 19 mins ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xbff9463838a6afec09b90c5af1ac2a744ca1407fa97fa3af3a448d65e79b112f53939162021-03-04 19:27:031 day 8 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x211b74d1d1f810674495df600b85cdb143bfeaa3d57f891c85f3943f2790257e53588962021-03-03 14:14:042 days 14 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xf63b20e58d5b0dddef10bb8cb70064cfb1e0005596722095610662c9cd7f862853511732021-03-03 6:30:102 days 21 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xc63a8d427af15e63009ae508cf3a8a8941199caf18dc9456d3a7f4661269be7353446472021-03-03 1:01:213 days 3 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x0bcf0649c5989f4ce4f93288805026417fd90824ed7ad5a63bea6be72edc5ba553404672021-03-02 21:31:313 days 6 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x2e8edc0dda931f810c4901ef9f63669a5a0de8b1b31bf3b8c2dfa52f40b665f753386402021-03-02 20:00:103 days 8 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x3cf1ea004cc4802b1b4bc80519388a0f966c4d04947ba872f389516d97296b6853385842021-03-02 19:57:223 days 8 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xc1d3922f90d7d5afe6a142025bb84c133cd76b74ab417ec577c54fe1a7d3c93e53304522021-03-02 13:10:253 days 15 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x2542068c358ce0abadde9f60279555c0748aec43e7e5266f1b819a9704ebc45a53278972021-03-02 11:02:403 days 17 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xbe2c81e47806ff0f1a112141b931630ea6284319f60f8ab666fa6d0ab77d383753276882021-03-02 10:52:133 days 17 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x7879588df8fb836251f80946927e1f612a80c28f7891ebf28596da1cd0e4c3a453258272021-03-02 9:19:103 days 18 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x9572092c632a7eacb278056716316a1d21d28ab5ef96e0df0b4545dec4877c3a53185192021-03-02 3:13:274 days 1 hr ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x2b1a112a7e476d8c4dad4ab4b7f531a463b3b4f47bff070a25301fa8448e4b6f53177242021-03-02 2:33:424 days 1 hr ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x8e09a1280a53699484e94dde3787eb24724f8feebc2f043b232373a0f7eba9f553088312021-03-01 19:08:254 days 9 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x8e09a1280a53699484e94dde3787eb24724f8feebc2f043b232373a0f7eba9f553088312021-03-01 19:08:254 days 9 hrs ago BSC: Token Hub NEAR Protocol: NEAR Token0 BNB
0x6a2ebfa60a8ebc9e58915746d55a29bf5a10a88d31e0ab24662ec9192b343df153088242021-03-01 19:08:044 days 9 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x110c1a46a3e446c6a17bf41bfe28f1b9a96ad42726607c5fc3098b3272cfe4ee53085202021-03-01 18:52:524 days 9 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x8d6f098f4b9f5777735d23ba557b9e110951ffd2fcd4abcddd04ffcd97161f4053020542021-03-01 13:29:144 days 14 hrs ago NEAR Protocol: NEAR Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
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Contract Source Code Verified (Similar Match)
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xA6Ec2Fe4F6040b188A926048f44c9A59Fca189d4

Contract Name:
BEP20UpgradeableProxy

Compiler Version
v0.6.4+commit.1dca32f3

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, Apache-2.0 license
/**
 *Submitted for verification at BscScan.com on 2020-09-29
*/

// File: openzeppelin-solidity/contracts/proxy/Proxy.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 * 
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 * 
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     * 
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal {
        // solhint-disable-next-line no-inline-assembly
        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 This is a virtual function that should be overriden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal virtual view returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     * 
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _fallback() internal {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback () payable external {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive () payable external {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     * 
     * If overriden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {
    }
}

// File: openzeppelin-solidity/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) {
        // This method relies in 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");
        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-solidity/contracts/proxy/UpgradeableProxy.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;



/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 * 
 * Upgradeability is only provided internally through {_upgradeTo}. For an externally upgradeable proxy see
 * {TransparentUpgradeableProxy}.
 */
contract UpgradeableProxy is Proxy {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     * 
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializating the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) public payable {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _setImplementation(_logic);
        if(_data.length > 0) {
            // solhint-disable-next-line avoid-low-level-calls
            (bool success,) = _logic.delegatecall(_data);
            require(success);
        }
    }

    /**
     * @dev Emitted when the implementation is upgraded.
     */
    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 private constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Returns the current implementation address.
     */
    function _implementation() internal override view returns (address impl) {
        bytes32 slot = _IMPLEMENTATION_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            impl := sload(slot)
        }
    }

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

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(Address.isContract(newImplementation), "UpgradeableProxy: new implementation is not a contract");

        bytes32 slot = _IMPLEMENTATION_SLOT;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, newImplementation)
        }
    }
}

// File: openzeppelin-solidity/contracts/proxy/TransparentUpgradeableProxy.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;


/**
 * @dev This contract implements a proxy that is upgradeable by an admin.
 * 
 * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
 * clashing], which can potentially be used in an attack, this contract uses the
 * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
 * things that go hand in hand:
 * 
 * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
 * that call matches one of the admin functions exposed by the proxy itself.
 * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
 * implementation. If the admin tries to call a function on the implementation it will fail with an error that says
 * "admin cannot fallback to proxy target".
 * 
 * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
 * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
 * to sudden errors when trying to call a function from the proxy implementation.
 * 
 * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
 * you should think of the `ProxyAdmin` instance as the real administrative inerface of your proxy.
 */
contract TransparentUpgradeableProxy is UpgradeableProxy {
    /**
     * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
     * optionally initialized with `_data` as explained in {UpgradeableProxy-constructor}.
     */
    constructor(address _logic, address _admin, bytes memory _data) public payable UpgradeableProxy(_logic, _data) {
        assert(_ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
        _setAdmin(_admin);
    }

    /**
     * @dev Emitted when the admin account has changed.
     */
    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 private constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
     */
    modifier ifAdmin() {
        if (msg.sender == _admin()) {
            _;
        } else {
            _fallback();
        }
    }

    /**
     * @dev Returns the current admin.
     * 
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}.
     * 
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function admin() external ifAdmin returns (address) {
        return _admin();
    }

    /**
     * @dev Returns the current implementation.
     * 
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}.
     * 
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
     */
    function implementation() external ifAdmin returns (address) {
        return _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     * 
     * Emits an {AdminChanged} event.
     * 
     * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.
     */
    function changeAdmin(address newAdmin) external ifAdmin {
        require(newAdmin != address(0), "TransparentUpgradeableProxy: new admin is the zero address");
        emit AdminChanged(_admin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev Upgrade the implementation of the proxy.
     * 
     * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.
     */
    function upgradeTo(address newImplementation) external ifAdmin {
        _upgradeTo(newImplementation);
    }

    /**
     * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
     * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
     * proxied contract.
     * 
     * NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}.
     */
    function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
        _upgradeTo(newImplementation);
        // solhint-disable-next-line avoid-low-level-calls
        (bool success,) = newImplementation.delegatecall(data);
        require(success);
    }

    /**
     * @dev Returns the current admin.
     */
    function _admin() internal view returns (address adm) {
        bytes32 slot = _ADMIN_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            adm := sload(slot)
        }
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        bytes32 slot = _ADMIN_SLOT;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, newAdmin)
        }
    }

    /**
     * @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}.
     */
    function _beforeFallback() internal override virtual {
        require(msg.sender != _admin(), "TransparentUpgradeableProxy: admin cannot fallback to proxy target");
        super._beforeFallback();
    }
}

// File: contracts/BEP20UpgradeableProxy.sol

pragma solidity ^0.6.0;


contract BEP20UpgradeableProxy is TransparentUpgradeableProxy {

    constructor(address logic, address admin, bytes memory data) TransparentUpgradeableProxy(logic, admin, data) public {

    }

}

Contract ABI

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Deployed ByteCode Sourcemap

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Swarm Source

ipfs://5c518be5ecdac9ebba758e8ce0b8e0dcacae92de07203f44e322e833b133a575
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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