Contract 0xbf7c81fff98bbe61b40ed186e4afd6ddd01337fe 3

 
 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x423c283a320de5b27ccc794180da3175c90909b1a244f6e1becc1bd44cf56079Approve111232002021-09-22 1:32:049 mins ago0xb638eda5fafb07a7d332795029cdaae19f989123 IN  Elrond: ELGD Token0 BNB0.00023576
0x3bac3b0b107142ddfc828bec0c1e3e3a6e81e07a985c1ff82c4abf9406e8a7b9Transfer111231432021-09-22 1:29:1312 mins ago0xa3b701891f7a804d27a29cca2ff8a18d13bb3508 IN  Elrond: ELGD Token0 BNB0.000323226
0x4a4c9c1db5427c422747de99e00879cb4ed84eedceb0c20698754e7447a94aceTransfer111229092021-09-22 1:16:3824 mins ago0x0af672ade909ee225236081a7685232e74d78b72 IN  Elrond: ELGD Token0 BNB0.00023895
0x1b3a62c0b05ab0ec768ea2624f8ea84017f2bcde8a08eb7bcc13cad7c52cd2f6Approve111224282021-09-22 0:52:3448 mins ago0xe350ccffa20dce75ad8e34be65ae245aee7fa44f IN  Elrond: ELGD Token0 BNB0.00023576
0x1041c2a9b6ebdacd6dbe33f62c1034ca66a91d2439a203605e57df82214c3d28Approve111224252021-09-22 0:52:2549 mins ago0x3fbb40f328f3f48568b8fe6e0d72540573975e49 IN  Elrond: ELGD Token0 BNB0.00023576
0x5de545d6b17f55c2c547cb59438978b72d3dedd00eecd5057536f947421f1fefApprove111221482021-09-22 0:38:341 hr 2 mins ago0x5565737b49e15d48c6fa2012b1c02ef8544312f3 IN  Elrond: ELGD Token0 BNB0.00023576
0x58586b7415c24eea4db1a805794860704f26f2c46af251841ea9dd32e380cecbApprove111221112021-09-22 0:36:431 hr 4 mins ago0xd71db38a7041206a09bc8408de3625e2e4227838 IN  Elrond: ELGD Token0 BNB0.00023576
0x3814d52aeaa436d3386356184a482676bb193ba533ca3cd97c2bd2651df44b6dApprove111217702021-09-22 0:19:341 hr 21 mins ago0x493cf2a9ffc7c536543d4aaaebc0c64733f391be IN  Elrond: ELGD Token0 BNB0.00023576
0x1a2cf91c5a0284b4235b9804c822f9e037775657a8fca5c6c0d9d698f1fc5c86Approve111211642021-09-21 23:48:161 hr 53 mins ago0x166e93c20421dfb7772a8adadef003441db09086 IN  Elrond: ELGD Token0 BNB0.00013976
0x7f4c4bff58c857b96c53d23ed4d340db23f3b5a072cf7c9bd8e1ee678cad6db6Approve111210592021-09-21 23:43:011 hr 58 mins ago0x166e93c20421dfb7772a8adadef003441db09086 IN  Elrond: ELGD Token0 BNB0.00023576
0xe0d12f67b2a7b7be495819f70310c5d5c88c9918131ad0c852bb947062e74df7Transfer111207912021-09-21 23:29:372 hrs 11 mins agoBinance: Hot Wallet 6 IN  Elrond: ELGD Token0 BNB0.00038895
0xaa0e89a425dac2ef028d2999b858155d88b31aa8842eea390471d1f492caa9a4Approve111207042021-09-21 23:25:102 hrs 16 mins ago0x22f334b3d974cabac0feb5742b3beaf27253d2d9 IN  Elrond: ELGD Token0 BNB0.00023576
0xd6dad0f7cc83d8c5e8cf27fb945e4a9f43124da8367753d5d10c7f4219492331Transfer111200082021-09-21 22:49:582 hrs 51 mins ago0x89027583a3ab904b001b0c6902f865498ceec70f IN  Elrond: ELGD Token0 BNB0.000194415
0x9a3174438f4cf32120844c3e923254a725f9ce06fa682a9f9396ad9d9682256cApprove111197402021-09-21 22:36:343 hrs 4 mins ago0x1818699c0fd905d11821712485b9d53c61653cf0 IN  Elrond: ELGD Token0 BNB0.00023576
0xf7d6ba588d3b3413dc3c61e4e3ed2e1cb5abb541507c1eae56a2f0a00962ce65Transfer111193332021-09-21 22:15:193 hrs 26 mins ago0x0fccc8398a9bc9b929d51a2eb92e9f4ce27b15bd IN  Elrond: ELGD Token0 BNB0.000143298
0x8c89ff66def403c8eaadf76ecc5df5a51e3a5f43f2da7a6359a24a8508e63300Transfer111191992021-09-21 22:08:373 hrs 32 mins ago0x0fccc8398a9bc9b929d51a2eb92e9f4ce27b15bd IN  Elrond: ELGD Token0 BNB0.000323226
0x83a73c39d616be64a3893c98c07a8bb8a83d4e6a741c801c26f7135aee39f3b0Transfer111190452021-09-21 22:00:553 hrs 40 mins ago0x072f3252d0eb025fbd30ec43181ae6cea8566004 IN  Elrond: ELGD Token0 BNB0.000194415
0xfea9416ec6b63ac924bf2687352b94e2e974be0039cb8fa4d6b0fe247dcc6c12Approve111189172021-09-21 21:54:313 hrs 46 mins ago0xf14daab87579cfdd2f157227e669605c540c998b IN  Elrond: ELGD Token0 BNB0.00023576
0x7986ad8285bbd4a9560be8bd3071dc65344a5aaa9cdff4d1f0aa38e9e0fe9c0eTransfer111188582021-09-21 21:51:113 hrs 50 mins agoBinance: Hot Wallet 7 IN  Elrond: ELGD Token0 BNB0.00053883
0x77f05ad58f27882331acba720e1b80f3e495caf70a586e6b630d1236559a78d0Transfer111188572021-09-21 21:51:083 hrs 50 mins agoBinance: Hot Wallet 6 IN  Elrond: ELGD Token0 BNB0.00053895
0xc82773d6ed6a6b0f5037e8ecb509a0c9a9307cb9d5d9f8a12d2eebf38d110296Transfer111188062021-09-21 21:48:353 hrs 52 mins ago0x2253d6303e0f458af3596e6c59ae3ffba7972f86 IN  Elrond: ELGD Token0 BNB0.000194415
0x19001df33f335992250bbc16e5b560f18d29b91f183a3aa8988505662a720902Approve111186782021-09-21 21:42:113 hrs 59 mins ago0x01e6df4b1ff5e1b76d95f98b865e04d06573b581 IN  Elrond: ELGD Token0 BNB0.00023576
0x2bfdfc30c3a9962870aaf457a077b1e97b1d99227c279e5b4f3a124768d329dfTransfer111186772021-09-21 21:42:083 hrs 59 mins agoBinance: Hot Wallet 7 IN  Elrond: ELGD Token0 BNB0.00038895
0xb804be7295caafce5e68b7fda5fe1602441e8e3c2523e0bd3220e527ac88ab9cTransfer111185202021-09-21 21:33:574 hrs 7 mins agoBinance: Hot Wallet 6 IN  Elrond: ELGD Token0 BNB0.00038883
0xd4cf659285e91f83feae0d38bdd2b0211cd043344a7201178b624c28d36d713eApprove111183852021-09-21 21:26:114 hrs 15 mins ago0x664b9fdd0364f0375da6d901b01ea8cda07e0810 IN  Elrond: ELGD Token0 BNB0.00023576
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OVERVIEW

Elrond is a blockchain protocol that seeks to offer extremely fast transaction speeds by using sharding. The project describes itself as a technology ecosystem for the new internet, which includes fintech, decentralized finance and the Internet of Things.

Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x3ba0df6608dd39a581cfd15c90824dbcc63e6f5032f79c00ef84746d42e2749c54713282021-03-07 11:59:21198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x883f3f370e7552babf76a28e07a5d1f73e104789c6b8920b28f513ad7dfae4b054713062021-03-07 11:58:15198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x954e08b6d9bc3e3666ad5d5122281b54845a87323a46a38813c54d0b9f7a1cd954712502021-03-07 11:55:27198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x954e08b6d9bc3e3666ad5d5122281b54845a87323a46a38813c54d0b9f7a1cd954712502021-03-07 11:55:27198 days 13 hrs ago PancakeSwap: EGLD Elrond: ELGD Token0 BNB
0x954e08b6d9bc3e3666ad5d5122281b54845a87323a46a38813c54d0b9f7a1cd954712502021-03-07 11:55:27198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x954e08b6d9bc3e3666ad5d5122281b54845a87323a46a38813c54d0b9f7a1cd954712502021-03-07 11:55:27198 days 13 hrs ago PancakeSwap: EGLD Elrond: ELGD Token0 BNB
0xd5ebd9c5ea33ba098ba6e4239b119fa16c14203f6f00148fddcc1b96d42f94f954712432021-03-07 11:55:06198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xd5ebd9c5ea33ba098ba6e4239b119fa16c14203f6f00148fddcc1b96d42f94f954712432021-03-07 11:55:06198 days 13 hrs ago PancakeSwap: EGLD Elrond: ELGD Token0 BNB
0xd5ebd9c5ea33ba098ba6e4239b119fa16c14203f6f00148fddcc1b96d42f94f954712432021-03-07 11:55:06198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xd5ebd9c5ea33ba098ba6e4239b119fa16c14203f6f00148fddcc1b96d42f94f954712432021-03-07 11:55:06198 days 13 hrs ago PancakeSwap: EGLD Elrond: ELGD Token0 BNB
0x7df7d64efb601b3a9293b01a042235ee98689a14f2bae59ffe122e9091e851dd54712382021-03-07 11:54:51198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xa9d6620e29e614e8e76e9bd7d9d0c47ed5a3c052d1acade9b87cd34da170507c54712172021-03-07 11:53:48198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xfc78b8359cc90af6145c0f03680f4a5afb92e57526818f8de8683e0d3e55abf154711072021-03-07 11:48:18198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xfc78b8359cc90af6145c0f03680f4a5afb92e57526818f8de8683e0d3e55abf154711072021-03-07 11:48:18198 days 13 hrs ago PancakeSwap: EGLD Elrond: ELGD Token0 BNB
0xfc78b8359cc90af6145c0f03680f4a5afb92e57526818f8de8683e0d3e55abf154711072021-03-07 11:48:18198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xfc78b8359cc90af6145c0f03680f4a5afb92e57526818f8de8683e0d3e55abf154711072021-03-07 11:48:18198 days 13 hrs ago PancakeSwap: EGLD Elrond: ELGD Token0 BNB
0xbfe7c3aa8f2256993a8736fa9039c51ed4b00ed576604c5b3ef25ab69c454dc854711072021-03-07 11:48:18198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xbfe7c3aa8f2256993a8736fa9039c51ed4b00ed576604c5b3ef25ab69c454dc854711072021-03-07 11:48:18198 days 13 hrs ago PancakeSwap: EGLD Elrond: ELGD Token0 BNB
0xbfe7c3aa8f2256993a8736fa9039c51ed4b00ed576604c5b3ef25ab69c454dc854711072021-03-07 11:48:18198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0xbfe7c3aa8f2256993a8736fa9039c51ed4b00ed576604c5b3ef25ab69c454dc854711072021-03-07 11:48:18198 days 13 hrs ago PancakeSwap: EGLD Elrond: ELGD Token0 BNB
0x3349024c32ae57e15359661587a8ae7d2bc831f625d42e912b26de361bdf2ec854710682021-03-07 11:46:21198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x3349024c32ae57e15359661587a8ae7d2bc831f625d42e912b26de361bdf2ec854710682021-03-07 11:46:21198 days 13 hrs ago 0x2b9151971c8927e0bbf28b8c8f9f781cbe4dee26 Elrond: ELGD Token0 BNB
0x7548ecc6744648a6b4ec228c600bc2db2b13ed1b37a10c3bf74c5de58ae3edb954710672021-03-07 11:46:18198 days 13 hrs ago Elrond: ELGD Token 0xba5fe23f8a3a24bed3236f05f2fcf35fd0bf0b5c0 BNB
0x7548ecc6744648a6b4ec228c600bc2db2b13ed1b37a10c3bf74c5de58ae3edb954710672021-03-07 11:46:18198 days 13 hrs ago PancakeSwap: EGLD Elrond: ELGD Token0 BNB
0x7548ecc6744648a6b4ec228c600bc2db2b13ed1b37a10c3bf74c5de58ae3edb954710672021-03-07 11:46:18198 days 13 hrs ago Elrond: ELGD 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 Security Audit

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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