Contract 0x250632378e573c6be1ac2f97fcdf00515d0aa91b

 
Txn Hash
Block
From
To
Value [Txn Fee]
0x0a26df310cc479409d52a13aac00f3b152bd167107e86a461fedc0ddacb4445883004682021-06-14 21:24:595 mins ago0x58f66921381d225df032ea685e0a25ee6f76d47e IN  Binance: Beacon ETH Token0 BNB0.00023576
0xdd443c850166a6b329d98bc19daafae1d29e4096f2bb1bc87105b95aab74b95183000962021-06-14 21:06:2323 mins ago0x222ff1e4badc56b0e84c1de5b9581e9b31b58133 IN  Binance: Beacon ETH Token0 BNB0.000194415
0x7926914e905b973a9b634e0866adc74186d06cc2693e36c1f2dc9d5b991bb6da83000882021-06-14 21:05:5324 mins ago0xe089b607969b4c439cb43588774cfb2573996285 IN  Binance: Beacon ETH Token0 BNB0.00023576
0x3e7e1ae903c094ad5ccd8d9d5b40b21c9b6eabca752ea6e3df8fc46444873b7683000572021-06-14 21:04:1325 mins ago0xa768b6a093198aab126f199ae9bcb234ddb62326 IN  Binance: Beacon ETH Token0 BNB0.00023576
0x1ba3a7ae5c710b6c52d29a9fb9159e14234b579d78d375cc39cc59744e87587b82994352021-06-14 20:32:0258 mins ago0x06d5e27fc0d01d789cb170536379b8917bfcafd8 IN  Binance: Beacon ETH Token0 BNB0.000119415
0x55629825a6fd5c6245a28e4a0c360a34ac9976e49382382e2fc2627fd47ee30582994142021-06-14 20:30:4659 mins ago0xbb1d423c4d0f7cff78d3016d61c9006bf3365ac0 IN  Binance: Beacon ETH Token0 BNB0.000119355
0xa6794cd4b094d7744451a0f7c9021a5dec831476ea34cf288b7eae2603e8578882993942021-06-14 20:29:421 hr ago0x06d5e27fc0d01d789cb170536379b8917bfcafd8 IN  Binance: Beacon ETH Token0 BNB0.000194355
0xa05fd1b4aaf47ef411fc79f6ab3f7051db0da0c41091b39de256c80185bd11b382993802021-06-14 20:29:001 hr 1 min ago0xe59e6caf5e96dff227db1b4111efc29232663e2a IN  Binance: Beacon ETH Token0 BNB0.000194475
0x05c6bd1d67a1c9a7426f23f151387da0fd0ab3fff38f344979972f335a5a90f782993702021-06-14 20:28:301 hr 1 min ago0x6517386cf5d1214296af95fa1178d89a996cab8b IN  Binance: Beacon ETH Token0 BNB0.00023576
0x22ea522950000c54cd454e0b5d420fcc66c42a3abf96397fc6f719e4db13d5ae82993292021-06-14 20:26:271 hr 3 mins ago0x84666d18d00077d519b0f53fe12e8522ba1d4c5c IN  Binance: Beacon ETH Token0 BNB0.00023576
0xad35c0c4b1ea1fee80a85c9131816eee353a50287a1a1d02e7ef7fd677fa7c1782991082021-06-14 20:15:241 hr 14 mins ago0x6517386cf5d1214296af95fa1178d89a996cab8b IN  Binance: Beacon ETH Token0 BNB0.00023576
0xf68af1dc4e14ec0bf33703b4b88d113d1c8c472b30ffdc4f4b14b70cf3b1510d82989462021-06-14 20:07:071 hr 23 mins ago0xef575087f1e7bec54046f98119c8c392a37c51dd IN  Binance: Beacon ETH Token0 BNB0.001292616
0x4e299d84c0c3b93cf0b1d3f3297a3123263d0088362a5e5864702d95b0e5457382989012021-06-14 20:04:521 hr 25 mins ago0x868118fead459e3ef43906d659e4579b4ab85241 IN  Binance: Beacon ETH Token0 BNB0.000282912
0xb6a0a6fea25511f438c598097221e55e3f599dc66b7781d36c4ffdc215c2a5b582988272021-06-14 20:01:101 hr 28 mins ago0xf4a6d62a53283bf4076416e79c5f04c9d75a7216 IN  Binance: Beacon ETH Token0 BNB0.000119415
0x687014da57ec19dd7e07e4c5608fd1a0d2092e9f00b23c20fd915ec57c6a727682985312021-06-14 19:46:221 hr 43 mins ago0x41aaea3ab3e53fef698831a95e8f990aad15554a IN  Binance: Beacon ETH Token0 BNB0.000119415
0xb52f77bf8779d707a10d2e39311b33fcfe6398fc31d92f8e64bc2cd98f62e77382984062021-06-14 19:40:071 hr 50 mins ago0x252773a012893a28f5f3b06d1c2b538b4e417347 IN  Binance: Beacon ETH Token0 BNB0.000194355
0x05a50d4c45271db7a51bfd343446bf921335fed404c560cb91a679c5665254b182982882021-06-14 19:34:131 hr 55 mins ago0x5fa14270c772a99f956f49e5b10fee39d0550d3d IN  Binance: Beacon ETH Token0 BNB0.00107766
0x6356dc55ec00da05567cd05716c05ae4eba1041ee6a30a05342b691c74567b7882982512021-06-14 19:32:221 hr 57 mins agoBinance: Hot Wallet 6 IN  Binance: Beacon ETH Token0 BNB0.00053871
0xc1dfa181aeeac618491ce7a766e2ad72c3fbdabafc7a08d96abb4e59032dd2cc82980062021-06-14 19:20:072 hrs 10 mins ago0xc311b6b14390e72359baf0f2e6df45900b414e97 IN  Binance: Beacon ETH Token0 BNB0.00023576
0xea3c88fe82b95112186fdff678ce64c361c270b5384fd41d7f056450adc404c182979312021-06-14 19:16:222 hrs 13 mins agoBinance: Hot Wallet 7 IN  Binance: Beacon ETH Token0 BNB0.00053883
0x3f13c19a90ff864720b86b86ab3d9656d3650b012df3e87b9ecee67ff321a8cd82978522021-06-14 19:12:222 hrs 17 mins agoBinance: Hot Wallet 6 IN  Binance: Beacon ETH Token0 BNB0.00053871
0xfb7995b4e4520c01ffeed69765cbd6fc2257832f4b6aa5ffc4c327aadd49133c82976832021-06-14 19:03:532 hrs 26 mins ago0x237827869c44f2a96e8a5225b1cfe570ffe945b1 IN  Binance: Beacon ETH Token0 BNB0.000194415
0x7c191f47f7b9797bf4b9bafee1ccfd70375c73224254597ed43da34752fd502282976632021-06-14 19:02:532 hrs 27 mins ago0x7f05ba602b034e80d259328bdd8dd21bd36c2801 IN  Binance: Beacon ETH Token0 BNB0.000330064
0x061e645997613ae27de89e1a14e26ee2098d00a2454f550c005b16037fa2e2b382972692021-06-14 18:43:112 hrs 46 mins ago0x243ee7c205661042bd95ff55de606670b6092951 IN  Binance: Beacon ETH Token0 BNB0.00023576
0x24d1ea76feeeaa5dfc4a6ca0924e9c07dd87eb5b3ec726ce12b48f6f67cc55de82970652021-06-14 18:32:592 hrs 57 mins ago0x8e0d70ac0cab072d57ebad447bd136d9a4552f42 IN  Binance: Beacon ETH Token0 BNB0.000119355
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OVERVIEW

BETH tokenizes that users have staked their ETH in a 1:1 ratio in Binance. Also, BETH brings users two rights, one is to redeem ETH in a 1:1 ratio when ETH2.0 Phase 1 goes live; the other is the staking benefit will be distributed in the form of BETH to users according to their BETH holdings.

Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x6acbb7faee6adba3d06e08a453977e515ffd794823cef45d2ad676e66bc7ba9b54713262021-03-07 11:59:1599 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x6acbb7faee6adba3d06e08a453977e515ffd794823cef45d2ad676e66bc7ba9b54713262021-03-07 11:59:1599 days 9 hrs ago 0x4c8170476ef5ac641f9a1045adff75e42e51c33a Binance: Beacon ETH Token0 BNB
0x863267dbf054599f5c90fd7911e2de8bb9d944b2f1248854146aceeda709ab8654713222021-03-07 11:59:0399 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x863267dbf054599f5c90fd7911e2de8bb9d944b2f1248854146aceeda709ab8654713222021-03-07 11:59:0399 days 9 hrs ago 0x516c18dc440f107f12619a6d2cc320622807d0ee Binance: Beacon ETH Token0 BNB
0x863267dbf054599f5c90fd7911e2de8bb9d944b2f1248854146aceeda709ab8654713222021-03-07 11:59:0399 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x863267dbf054599f5c90fd7911e2de8bb9d944b2f1248854146aceeda709ab8654713222021-03-07 11:59:0399 days 9 hrs ago 0x516c18dc440f107f12619a6d2cc320622807d0ee Binance: Beacon ETH Token0 BNB
0x863267dbf054599f5c90fd7911e2de8bb9d944b2f1248854146aceeda709ab8654713222021-03-07 11:59:0399 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x863267dbf054599f5c90fd7911e2de8bb9d944b2f1248854146aceeda709ab8654713222021-03-07 11:59:0399 days 9 hrs ago Venus: vBETH Token Binance: Beacon ETH Token0 BNB
0xbfff6b082de6c4c0fcc966c469167471843e0f83191cd2712273fe30f14ad61f54712932021-03-07 11:57:3699 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xbfff6b082de6c4c0fcc966c469167471843e0f83191cd2712273fe30f14ad61f54712932021-03-07 11:57:3699 days 9 hrs ago 0x516c18dc440f107f12619a6d2cc320622807d0ee Binance: Beacon ETH Token0 BNB
0xbfff6b082de6c4c0fcc966c469167471843e0f83191cd2712273fe30f14ad61f54712932021-03-07 11:57:3699 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xbfff6b082de6c4c0fcc966c469167471843e0f83191cd2712273fe30f14ad61f54712932021-03-07 11:57:3699 days 9 hrs ago 0x516c18dc440f107f12619a6d2cc320622807d0ee Binance: Beacon ETH Token0 BNB
0xbfff6b082de6c4c0fcc966c469167471843e0f83191cd2712273fe30f14ad61f54712932021-03-07 11:57:3699 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xbfff6b082de6c4c0fcc966c469167471843e0f83191cd2712273fe30f14ad61f54712932021-03-07 11:57:3699 days 9 hrs ago Venus: vBETH Token Binance: Beacon ETH Token0 BNB
0xdc92a1682c8cd65e929b91bc0bc855847096c96966a53b574631027fb720492a54712912021-03-07 11:57:3099 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xdc92a1682c8cd65e929b91bc0bc855847096c96966a53b574631027fb720492a54712912021-03-07 11:57:3099 days 9 hrs ago 0xfb72d7c0f1643c96c197a98e5f36ebcf7597d0e3 Binance: Beacon ETH Token0 BNB
0xdc92a1682c8cd65e929b91bc0bc855847096c96966a53b574631027fb720492a54712912021-03-07 11:57:3099 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xdc92a1682c8cd65e929b91bc0bc855847096c96966a53b574631027fb720492a54712912021-03-07 11:57:3099 days 9 hrs ago 0xcde540d7eafe93ac5fe6233bee57e1270d3e330f Binance: Beacon ETH Token0 BNB
0x83ff32e7731dc595c4318ddde715707bbd3e172868ae2e9ef05be560f30e371b54712852021-03-07 11:57:1299 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x83ff32e7731dc595c4318ddde715707bbd3e172868ae2e9ef05be560f30e371b54712852021-03-07 11:57:1299 days 9 hrs ago PancakeSwap: ETH-BETH Binance: Beacon ETH Token0 BNB
0x83ff32e7731dc595c4318ddde715707bbd3e172868ae2e9ef05be560f30e371b54712852021-03-07 11:57:1299 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x83ff32e7731dc595c4318ddde715707bbd3e172868ae2e9ef05be560f30e371b54712852021-03-07 11:57:1299 days 9 hrs ago PancakeSwap: Router Binance: Beacon ETH Token0 BNB
0x57aea390c47c9a9ff41f166ce821f1c7e139fcdac8c77208a3ba8268b00215b054712772021-03-07 11:56:4899 days 9 hrs ago Binance: Beacon ETH Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x57aea390c47c9a9ff41f166ce821f1c7e139fcdac8c77208a3ba8268b00215b054712772021-03-07 11:56:4899 days 9 hrs ago PancakeSwap: BETH-KLING Binance: Beacon ETH Token0 BNB
0x57aea390c47c9a9ff41f166ce821f1c7e139fcdac8c77208a3ba8268b00215b054712772021-03-07 11:56:4899 days 9 hrs ago Binance: Beacon ETH 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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