Contract 0x3B3ee1931Dc30C1957379FAc9aba94D1C48a5405 8

 
Txn Hash
Method
Block
From
To
Value
0x3693e5013f6b0b500c4e7fdd77be885ccb0ebb4a4582d03c8877113d61703a80Burn(pending)2022-08-08 10:58:343 days 7 hrs ago0x0a627065f99423f2d234a7200802f7b911b1bf68 IN Foundation: FND Token0 Ether(Pending)(Pending)
0xa11d6fa9ce21f257fe492bbc53b18ed3705bc530b30e823b96721946d9a11d1cMint And Approve...(pending)2022-07-22 1:06:5120 days 17 hrs ago0x0fbd46aa530f53a4c28e0efdd4c2bde1933d41a3 IN Foundation: FND Token0 Ether(Pending)(Pending)
0x7984692dcf5b0a43751cd0c371d7d681c3416b2c10eead2e6b57ad16d6351a8bMint And Approve...(pending)2022-07-17 1:41:4025 days 16 hrs ago0x5581d76d9cae626b1726fbb183e0fdabf84a2217 IN Foundation: FND Token0 Ether(Pending)(Pending)
0x9e2268e67770049c6e2f044310cdaffe853d0de7ec76034d2a5461cec898527fTransfer From153207782022-08-11 12:41:185 hrs 28 mins ago0x750ee5723803e128da2855ec66f54f46bbe4a168 IN  Foundation: FND Token0 Ether0.‍00267099 22.‍91306152
0xc3fb64cedf0524767f47602aabc0b44d747517c66f9b3328b656129f809ede35Set Approval For...153204352022-08-11 11:25:406 hrs 44 mins ago0x338bc96441518a80e0d4dd03b340cf7fce7bd393 IN  Foundation: FND Token0 Ether0.‍00037442 7
0x2af35b15ef6d58c6d3597439c8ab9fd63cb3447f393da49fa70a1aae81da970eSet Approval For...153204352022-08-11 11:25:406 hrs 44 mins ago0xccacf3bb422f4f1d9969cd414b7ddaae7cd745ad IN  Foundation: FND Token0 Ether0.‍00037442 7
0x7c572c67194a8417d4970acf217013a48c1654f17785d5979b6de1c200fc6b9bSet Approval For...153199042022-08-11 9:27:568 hrs 42 mins ago0xb21edcfbb2edbdfb3c8304c71235196483e6b8b3 IN  Foundation: FND Token0 Ether0.‍00098515 18.‍44685292
0xc166447b566f7af0f8f1bb116209d5eedb073222c1030948e706110a6cbbcf9aTransfer From153194462022-08-11 7:35:0110 hrs 35 mins agoENS Name envision32.eth IN  Foundation: FND Token0 Ether0.‍00231418 17.‍54564479
0xa270353efb70d90e5555233bfe3cb6345c24c7f83544938f32599741d935880fSet Approval For...153192832022-08-11 6:59:4911 hrs 10 mins ago0x6ee1025d00b557f8fd1d44c560de95fe4023e595 IN  Foundation: FND Token0 Ether0.‍00119512 22.‍37850241
0x6bcb2e8661752c217582f74d87d78686a81b3699c46db7001486e54e5df04e64Safe Transfer Fr...153185642022-08-11 4:20:4413 hrs 49 mins agoENS Name laxsuperrich.eth IN  Foundation: FND Token0 Ether0.‍0017743 17.‍33248672
0xe092c75586b0bba02f7a64351dd53290eb306d569cf63f6e83b4129b58443e47Safe Transfer Fr...153185512022-08-11 4:17:1813 hrs 52 mins agoENS Name laxsuperrich.eth IN  Foundation: FND Token0 Ether0.‍00192663 16.‍37501851
0x8ad53b9832e61f69a3cf5d15143accb0eebb9ec90c05b589b0e04139bb94135dSafe Transfer Fr...153185492022-08-11 4:16:3713 hrs 53 mins agoENS Name laxsuperrich.eth IN  Foundation: FND Token0 Ether0.‍00144361 13.‍47045608
0xf5c430cd413aa23f1cdb22103f89dfa7a2f38bc64290b0dfcf63b09ae34f6f3aSafe Transfer Fr...153185492022-08-11 4:16:3713 hrs 53 mins agoENS Name laxsuperrich.eth IN  Foundation: FND Token0 Ether0.‍00157294 13.‍47045608
0xb925367d49f6f45bf9574b7a80953e4902d49c6f1785b4b138927e2006c18338Safe Transfer Fr...153185472022-08-11 4:16:0513 hrs 54 mins agoENS Name laxsuperrich.eth IN  Foundation: FND Token0 Ether0.‍00167593 14.‍24420468
0xd9c3c68e8f19c31fb821fd0c5725b321769000d83ec1aed67ce0286c0fcedc02Safe Transfer Fr...153185382022-08-11 4:14:3813 hrs 55 mins agoENS Name laxsuperrich.eth IN  Foundation: FND Token0 Ether0.‍00183461 17.‍11893304
0x9f340ff52c76b170272decf8b923251895bfc106ca6a80acda17c91322f2385fSafe Transfer Fr...153185342022-08-11 4:14:0113 hrs 56 mins agoENS Name laxsuperrich.eth IN  Foundation: FND Token0 Ether0.‍00204245 19.‍05829353
0x6f9a1937bc1efd1ed53fec7735b0eba45d3c2eae767e4bee77a8656edacdb19eSafe Transfer Fr...153185242022-08-11 4:11:1713 hrs 58 mins agoENS Name laxsuperrich.eth IN  Foundation: FND Token0 Ether0.‍00228705 18.‍40405373
0xeb935ccba2dc743a0f93b94fb33e40899d4781e08d77cdd440db10d440faff09Set Approval For...153182402022-08-11 3:01:5115 hrs 8 mins ago0x0cb7a06ec845edca1af6db6b6538c4ca0942019a IN  Foundation: FND Token0 Ether0.‍00305542 57.‍12256183
0x4606eeb23725ca46488eb833be7a7ac565ac147b2d8d71a4af552589bfaab815Set Approval For...153176662022-08-11 0:55:2117 hrs 14 mins agoENS Name 3seatervault.eth IN  Foundation: FND Token0 Ether0.‍00212408 39.‍71066653
0x2a01742fdffb6e38ffe369d62cee737561c041edabaab9ec719fe8ffff0d5077Transfer From153169092022-08-10 22:04:5520 hrs 5 mins agoENS Name zuphioh.eth IN  Foundation: FND Token0 Ether0.‍00447451 38.‍97831168
0xc5f9bcec10211324df67d7125412225096f99b1212f6ccc5b8b4c7d897facd6bSafe Transfer Fr...153164242022-08-10 20:16:3821 hrs 53 mins ago0xb12ff64471041bf197e7898e081a2b6a6051f2fd IN  Foundation: FND Token0 Ether0.‍00213762 18.‍95532051
0x28749158c2a082575922498973790326abc09434704fb3f0e90870cc652c51b0Safe Transfer Fr...153163862022-08-10 20:09:0422 hrs 1 min ago0xb12ff64471041bf197e7898e081a2b6a6051f2fd IN  Foundation: FND Token0 Ether0.‍00222411 19.‍72224645
0x14539a36c4efac762e9d2757ace2d04da9af3a35fdfdab2a0ec814947595d2d7Set Approval For...153159932022-08-10 18:39:3923 hrs 30 mins ago0x9a393c78b89d4e702972d8fd8c0b8cacc83993f4 IN  Foundation: FND Token0 Ether0.‍00361506 67.‍58511136
0x792a26cb2ac3145edd183d77a3d92e312eac01bc4479c7fccd54f68aa8f34cd4Set Approval For...153159492022-08-10 18:25:1623 hrs 44 mins agoENS Name thedrippyhippie.eth IN  Foundation: FND Token0 Ether0.‍00177019 33.‍1467025
0xc16be996300852122d755f66f526c34533855827c84616b1646b703f2f00096bTransfer From153145612022-08-10 13:20:281 day 4 hrs ago0x7beaa6a31455ffce6424524696346ff6677ebc84 IN  Foundation: FND Token0 Ether0.‍00477151 40.‍92806996
[ Download CSV Export 

OVERVIEW

Foundation helps creators mint and auction their digital artworks as NFTs on the Ethereum blockchain.

Latest 7 internal transactions
Parent Txn Hash Block From To Value
0x97c139c90235dee0cfa6b58d3465122740fd59bc41e7769ee491f2af0d739e51134420492021-10-18 13:20:41297 days 4 hrs ago 0x982e49cb023bbdbdc7d5dd8b867fc83cb2c0def4 Foundation: FND Token0.‍01835315 Ether
0x1d43aa9ea4163aefb87f2263f87ce3d9f0024b03429269184a500a8e9529c798133118982021-09-28 3:32:44317 days 14 hrs ago 0x7764e75e939a3038ffaaf7241e5c2c45b9b37884 Foundation: FND Token0.‍06375 Ether
0xba3d48eb87386bd5162836abdf8341b364e220fd81591aef93d8b94f85449ebe132388892021-09-16 20:19:46328 days 21 hrs ago Bitstamp 2 Foundation: FND Token0.‍07358957 Ether
0x7af8c5b705dfee28dab7f99c9cb8e436f92e8bcf33b544b70f5459270e243289127297502021-06-29 15:28:48408 days 2 hrs ago 0xe9bdb4219706914441178bc8357e8551b53d8cbf Foundation: FND Token0.‍06 Ether
0x65c7525c596936cc5f3caf74b5a6cfe7f80aa70df2a65415a6eeae4a9594e1b1127260302021-06-29 1:25:30408 days 16 hrs ago 0xe9bdb4219706914441178bc8357e8551b53d8cbf Foundation: FND Token0.‍06 Ether
0x2adcb7da81f9005cf81736f51c4494585a47c472e0f9934be3e764d71443c162122847712021-04-21 17:00:26477 days 1 hr ago 0xe9bdb4219706914441178bc8357e8551b53d8cbf Foundation: FND Token0.‍1 Ether
0x5fca525ee17abcbfe0bcf77d4a854ee2f1f924e961e14b1a81f70d21bcc71b3d122815222021-04-21 4:49:40477 days 13 hrs ago 0x121effb8160f7206444f5a57d13c7a4424a237a4 Foundation: FND Token0.‍06428927 Ether
[ Download CSV Export 
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
AdminUpgradeabilityProxy

Compiler Version
v0.6.8+commit.0bbfe453

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, MIT license
/**
 *Submitted for verification at Etherscan.io on 2021-11-01
*/

/*
  ・
   * ★
      ・ 。
         ・ ゚☆ 。
      * ★ ゚・。 *  。
            * ☆ 。・゚*.。
         ゚ *.。☆。★ ・
​
                      `                     .-:::::-.`              `-::---...```
                     `-:`               .:+ssssoooo++//:.`       .-/+shhhhhhhhhhhhhyyyssooo:
                    .--::.            .+ossso+/////++/:://-`   .////+shhhhhhhhhhhhhhhhhhhhhy
                  `-----::.         `/+////+++///+++/:--:/+/-  -////+shhhhhhhhhhhhhhhhhhhhhy
                 `------:::-`      `//-.``.-/+ooosso+:-.-/oso- -////+shhhhhhhhhhhhhhhhhhhhhy
                .--------:::-`     :+:.`  .-/osyyyyyyso++syhyo.-////+shhhhhhhhhhhhhhhhhhhhhy
              `-----------:::-.    +o+:-.-:/oyhhhhhhdhhhhhdddy:-////+shhhhhhhhhhhhhhhhhhhhhy
             .------------::::--  `oys+/::/+shhhhhhhdddddddddy/-////+shhhhhhhhhhhhhhhhhhhhhy
            .--------------:::::-` +ys+////+yhhhhhhhddddddddhy:-////+yhhhhhhhhhhhhhhhhhhhhhy
          `----------------::::::-`.ss+/:::+oyhhhhhhhhhhhhhhho`-////+shhhhhhhhhhhhhhhhhhhhhy
         .------------------:::::::.-so//::/+osyyyhhhhhhhhhys` -////+shhhhhhhhhhhhhhhhhhhhhy
       `.-------------------::/:::::..+o+////+oosssyyyyyyys+`  .////+shhhhhhhhhhhhhhhhhhhhhy
       .--------------------::/:::.`   -+o++++++oooosssss/.     `-//+shhhhhhhhhhhhhhhhhhhhyo
     .-------   ``````.......--`        `-/+ooooosso+/-`          `./++++///:::--...``hhhhyo
                                              `````
   * 
      ・ 。
    ・  ゚☆ 。
      * ★ ゚・。 *  。
            * ☆ 。・゚*.。
         ゚ *.。☆。★ ・
    *  ゚。·*・。 ゚*
     ☆゚・。°*. ゚
  ・ ゚*。・゚★。
  ・ *゚。   *
 ・゚*。★・
 ☆∴。 *
・ 。
*/

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

// SPDX-License-Identifier: MIT

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;

/**
 * @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: ../proxy-contracts/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: ../proxy-contracts/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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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000accbd3fde9d7f6e899b85003120a460d78b0707a00000000000000000000000072de36c8ebeacb6100c36249552e35feff0ee09900000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000024c4d66de800000000000000000000000067df244584b67e8c51b10ad610aaffa9a402fdb600000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _logic (address): 0xaccbd3fde9d7f6e899b85003120a460d78b0707a
Arg [1] : _admin (address): 0x72de36c8ebeacb6100c36249552e35feff0ee099
Arg [2] : _data (bytes): 0xc4d66de800000000000000000000000067df244584b67e8c51b10ad610aaffa9a402fdb6

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 000000000000000000000000accbd3fde9d7f6e899b85003120a460d78b0707a
Arg [1] : 00000000000000000000000072de36c8ebeacb6100c36249552e35feff0ee099
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000024
Arg [4] : c4d66de800000000000000000000000067df244584b67e8c51b10ad610aaffa9
Arg [5] : a402fdb600000000000000000000000000000000000000000000000000000000


Deployed ByteCode Sourcemap

13514:4220:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2592:11;:9;:11::i;:::-;13514:4220;;2448:11;:9;:11::i;:::-;13514:4220;16160:105;;5:9:-1;2:2;;;27:1;24;17:12;2:2;16160:105:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;16160:105:0;;;;;;;;;;;;;;;;;;;:::i;:::-;;16793:225;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;16793:225:0;;;;;;;;;;;;;;;;;;;;;27:11:-1;14;11:28;8:2;;;52:1;49;42:12;8:2;16793:225:0;;41:9:-1;34:4;18:14;14:25;11:40;8:2;;;64:1;61;54:12;8:2;16793:225:0;;;;;;100:9:-1;95:1;81:12;77:20;67:8;63:35;60:50;39:11;25:12;22:29;11:107;8:2;;;131:1;128;121:12;8:2;16793:225:0;;;;;;;;;;;;:::i;:::-;;15460:98;;5:9:-1;2:2;;;27:1;24;17:12;2:2;15460:98:0;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;15741:228;;5:9:-1;2:2;;;27:1;24;17:12;2:2;15741:228:0;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;15741:228:0;;;;;;;;;;;;;;;;;;;:::i;:::-;;15311:80;;5:9:-1;2:2;;;27:1;24;17:12;2:2;15311:80:0;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;4166:93;4203:15;:13;:15::i;:::-;4225:28;4235:17;:15;:17::i;:::-;4225:9;:28::i;:::-;4166:93::o;16160:105::-;15178:8;:6;:8::i;:::-;15164:22;;:10;:22;;;15160:80;;;16230:29:::1;16241:17;16230:10;:29::i;:::-;15160:80:::0;;;15221:11;:9;:11::i;:::-;15160:80;16160:105;:::o;16793:225::-;15178:8;:6;:8::i;:::-;15164:22;;:10;:22;;;15160:80;;;16899:29:::1;16910:17;16899:10;:29::i;:::-;16936:12;16953:17;:30;;16984:4;;16953:36;;;;;30:3:-1;22:6;14;1:33;57:3;49:6;45:16;35:26;;16953:36:0;;;;;;;;;;;;;;;;;;;;12:1:-1;19;14:27;;;;67:4;61:11;56:16;;134:4;130:9;123:4;105:16;101:27;97:43;94:1;90:51;84:4;77:65;157:16;154:1;147:27;211:16;208:1;201:4;198:1;194:12;179:49;5:228;;14:27;32:4;27:9;;5:228;;16935:54:0;;;17004:7;16996:16;;12:1:-1;9::::0;2:12:::1;16996:16:0;15197:1;15160:80:::0;;;15221:11;:9;:11::i;:::-;15160:80;16793:225;;;:::o;15460:98::-;15512:7;15178:8;:6;:8::i;:::-;15164:22;;:10;:22;;;15160:80;;;15535:17:::1;:15;:17::i;:::-;15528:24;;15160:80:::0;;;15221:11;:9;:11::i;:::-;15160:80;15460:98;:::o;15741:228::-;15178:8;:6;:8::i;:::-;15164:22;;:10;:22;;;15160:80;;;15832:1:::1;15812:22;;:8;:22;;;;15804:89;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;15905:32;15918:8;:6;:8::i;:::-;15928;15905:32;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;15944:19;15954:8;15944:9;:19::i;:::-;15160:80:::0;;;15221:11;:9;:11::i;:::-;15160:80;15741:228;:::o;15311:80::-;15354:7;15178:8;:6;:8::i;:::-;15164:22;;:10;:22;;;15160:80;;;15377:8:::1;:6;:8::i;:::-;15370:15;;15160:80:::0;;;15221:11;:9;:11::i;:::-;15160:80;15311;:::o;5032:422::-;5092:4;5300:12;5411:7;5399:20;5391:28;;5445:1;5438:4;:8;5431:15;;;5032:422;;;:::o;17554:177::-;17634:8;:6;:8::i;:::-;17620:22;;:10;:22;;;;17612:85;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;17704:21;:19;:21::i;:::-;17554:177::o;12155:170::-;12214:12;12235;11964:66;12250:19;;12235:34;;12308:4;12302:11;12294:19;;12285:35;;:::o;3039:762::-;3346:14;3343:1;3340;3327:34;3546:1;3543;3527:14;3524:1;3508:14;3501:5;3488:60;3613:16;3610:1;3607;3592:38;3647:6;3709:1;3704:38;;;;3770:16;3767:1;3760:27;3704:38;3723:16;3720:1;3713:27;17072:141;17113:11;17133:12;14871:66;17148:10;;17133:25;;17196:4;17190:11;17183:18;;17174:34;;:::o;12466:145::-;12529:37;12548:17;12529:18;:37::i;:::-;12587:17;12578:27;;;;;;;;;;;;12466:145;:::o;17335:139::-;17388:12;14871:66;17403:10;;17388:25;;17453:8;17447:4;17440:22;17431:38;;:::o;4017:48::-;:::o;12754:293::-;12833:37;12852:17;12833:18;:37::i;:::-;12825:109;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;12943:12;11964:66;12958:19;;12943:34;;13017:17;13011:4;13004:31;12995:47;;:::o

Swarm Source

ipfs://b0503c23d64d00872f309af6ebc439401f4a3a5289bbb698fa4e5aabd7476426
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.

A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.