Contract 0x4BB2C33e0093bFCA1C3E22f9A0D97af42c8568cB 1

Contract Overview

Balance:
0 Ether
Txn Hash
Method
Block
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To
Value
0x389b4b7a693e512fe8f285de1b7aae5995602573df3b5735574223796439fbd5Transfer115522522021-12-04 16:05:43258 days 7 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000097482
0x0a838a9dbb7f83370775efcc8a6920385dd9576c1b150d32a6cae70aaad8423dTransfer115451492021-12-03 13:56:40259 days 9 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000097482
0xdfc2d4ed35639a30127b41a5171196b47c66e5e5fee9974bb3fb555cade37458Transfer115451472021-12-03 13:56:06259 days 9 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000097482
0x02b6644597bb25a11193ee146088255004e42c22f94c0de5c7ee2aafeed788b7Approve111458232021-10-01 18:30:02322 days 4 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.00009749 1.82534599
0x572e670e0a009a6873cb9df2c93cbeec42fa0eec73ef9a9bc7e649914c3233edTransfer111005122021-09-24 20:50:51329 days 2 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.0005850712
0x10afd892e530ba46cc45e5eecf4958e7076eb8e4303d737cce2abf41b04f2375Admin Issue Fund...110449592021-09-16 9:39:24337 days 13 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000066461.00000001
0xc526a5e6fbd2cec75418cb915d574cfeca63d0fa9671ddf2c1ff96e31dfb83a2Admin Issue Fund...110449562021-09-16 9:39:04337 days 13 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000069041.00000001
0x4ecb2f564619bca33c47ec0bbf6694c704c155b65aedf4ec6ed58378a225eee1Admin Issue Fund...110413052021-09-15 18:57:52338 days 4 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000100471.00000007
0x7fa3a3ba5d0ebe23c63be25a6b0bf5ef34f74bce79cff5a976b3e0674995d59aAdmin Issue Fund...110351352021-09-14 18:25:25339 days 4 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000069061.00000009
0x51921c33aafc4818f9a81b769dcc5ca3001f6102503063075c965bb7b66d6cb2Admin Issue Fund...73279812020-02-14 20:02:12917 days 3 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000060871
0x01d383192bc529ce012f555125e66422e36be6b5fd940c92691ea84b89baebb4Admin Issue Fund...73279672020-02-14 19:59:05917 days 3 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000060871
0x2d484bb76cebf9bd54ceec8f2f4471fefb8d9310e804cd6d0b2019c796ad3648Admin Issue Fund...73279562020-02-14 19:55:18917 days 3 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000060871
0x67038fe8b9d00b7600cde8346e58d718a0e8bcb134168d029e5ffcc1479d5fd7Admin Issue Fund...73279312020-02-14 19:48:03917 days 3 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000060871
0x6a6960106d03103041bbc67a2b3ba7d41164cd3a8089ec5f03dc0b302680c0a1Admin Issue Fund...73278062020-02-14 19:18:32917 days 4 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000063361
0x9cf416fa108211b1f5349be116b1e8162b5995bd3f99ac2d4f690f0c73e9de7bTransfer64293282019-09-21 5:50:331063 days 17 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.0003931610
0xf393e3187d4ee7a7efe0ee6a2091cf130cdffaf9a417966ec2d3c2ca3bd6c3af0x574cfe2859302222019-07-05 9:45:541141 days 13 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000066921
0xb0c74ab812a13f93a157a116c54290b4a23725d6e883bac38139421b70db74600x574cfe2859302222019-07-05 9:45:541141 days 13 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000066921
0x713ad8279feca63be92dec947d4dd5995bcb05d18f6ff989a91674fab0d48dfb0x574cfe2859302222019-07-05 9:45:541141 days 13 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000066921
0xdbc4859c8a8775455065909f0ac58121ff68155e2b5096e92d95e534622de6800x574cfe2859302222019-07-05 9:45:541141 days 13 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000066921
0xfb1b39e024f9a050faf51599e7033202d400154b910b6182f2f558a6557123ec0x574cfe2859302212019-07-05 9:45:361141 days 13 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000053530.8
0xd3bf7ff230f9769ea318ad19ac205d909b6ff3a3a80583f42bdde884a65b678e0x574cfe2859302212019-07-05 9:45:361141 days 13 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000061210.8
0x484df26ad16d487dbe74a08ebb409c2a7f4f6d0d81b0f5b40d541e298b997b9a0x574cfe2859080812019-07-02 20:19:021144 days 3 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000066861
0x332c0e2f651c6148b28dddfb537df7632ecf52a2e816824cc42ff3b1c047c4220x574cfe2859080772019-07-02 20:17:211144 days 3 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000066921
0xdea256cf1d38f257e2217b979c913e917a8220a5f114f06fac43fda18c6fbe700x574cfe2859080592019-07-02 20:11:581144 days 3 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000066921
0x622896ed88a4502de3cae8e00b2d24066e1651400faddff39df1052d1b42fd710x574cfe2859080292019-07-02 20:06:261144 days 3 hrs ago0x535d4aae3d10ce41f6e2c2d7af0cd80a1988f811 IN  0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether0.000066921
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x389b4b7a693e512fe8f285de1b7aae5995602573df3b5735574223796439fbd5115522522021-12-04 16:05:43258 days 7 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x0a838a9dbb7f83370775efcc8a6920385dd9576c1b150d32a6cae70aaad8423d115451492021-12-03 13:56:40259 days 9 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xdfc2d4ed35639a30127b41a5171196b47c66e5e5fee9974bb3fb555cade37458115451472021-12-03 13:56:06259 days 9 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xcb0251ce9121eb76618308c2067325aba5dfce9dc789ce1f39c56ff3113e2e26111458292021-10-01 18:31:17322 days 4 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xcb0251ce9121eb76618308c2067325aba5dfce9dc789ce1f39c56ff3113e2e26111458292021-10-01 18:31:17322 days 4 hrs ago 0xa2dfecf581b857e44007a1b0f60ee2fed4b25a8b 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether
0xcb0251ce9121eb76618308c2067325aba5dfce9dc789ce1f39c56ff3113e2e26111458292021-10-01 18:31:17322 days 4 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xcb0251ce9121eb76618308c2067325aba5dfce9dc789ce1f39c56ff3113e2e26111458292021-10-01 18:31:17322 days 4 hrs ago 0xa2dfecf581b857e44007a1b0f60ee2fed4b25a8b 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb0 Ether
0x02b6644597bb25a11193ee146088255004e42c22f94c0de5c7ee2aafeed788b7111458232021-10-01 18:30:02322 days 4 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x572e670e0a009a6873cb9df2c93cbeec42fa0eec73ef9a9bc7e649914c3233ed111005122021-09-24 20:50:51329 days 2 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x10afd892e530ba46cc45e5eecf4958e7076eb8e4303d737cce2abf41b04f2375110449592021-09-16 9:39:24337 days 13 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xc526a5e6fbd2cec75418cb915d574cfeca63d0fa9671ddf2c1ff96e31dfb83a2110449562021-09-16 9:39:04337 days 13 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x4ecb2f564619bca33c47ec0bbf6694c704c155b65aedf4ec6ed58378a225eee1110413052021-09-15 18:57:52338 days 4 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x7fa3a3ba5d0ebe23c63be25a6b0bf5ef34f74bce79cff5a976b3e0674995d59a110351352021-09-14 18:25:25339 days 4 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x51921c33aafc4818f9a81b769dcc5ca3001f6102503063075c965bb7b66d6cb273279812020-02-14 20:02:12917 days 3 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x01d383192bc529ce012f555125e66422e36be6b5fd940c92691ea84b89baebb473279672020-02-14 19:59:05917 days 3 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x2d484bb76cebf9bd54ceec8f2f4471fefb8d9310e804cd6d0b2019c796ad364873279562020-02-14 19:55:18917 days 3 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x67038fe8b9d00b7600cde8346e58d718a0e8bcb134168d029e5ffcc1479d5fd773279312020-02-14 19:48:03917 days 3 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x6a6960106d03103041bbc67a2b3ba7d41164cd3a8089ec5f03dc0b302680c0a173278062020-02-14 19:18:32917 days 4 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x9cf416fa108211b1f5349be116b1e8162b5995bd3f99ac2d4f690f0c73e9de7b64293282019-09-21 5:50:331063 days 17 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xf393e3187d4ee7a7efe0ee6a2091cf130cdffaf9a417966ec2d3c2ca3bd6c3af59302222019-07-05 9:45:541141 days 13 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xb0c74ab812a13f93a157a116c54290b4a23725d6e883bac38139421b70db746059302222019-07-05 9:45:541141 days 13 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0x713ad8279feca63be92dec947d4dd5995bcb05d18f6ff989a91674fab0d48dfb59302222019-07-05 9:45:541141 days 13 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xdbc4859c8a8775455065909f0ac58121ff68155e2b5096e92d95e534622de68059302222019-07-05 9:45:541141 days 13 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xfb1b39e024f9a050faf51599e7033202d400154b910b6182f2f558a6557123ec59302212019-07-05 9:45:361141 days 13 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
0xd3bf7ff230f9769ea318ad19ac205d909b6ff3a3a80583f42bdde884a65b678e59302212019-07-05 9:45:361141 days 13 hrs ago 0x4bb2c33e0093bfca1c3e22f9a0d97af42c8568cb 0xdb48df24fa996b2af39d530f7cd2638234874e720 Ether
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This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.

Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x9EdA76D2A9B73612e7F8788c3F24396e736f0dBF

Contract Name:
AdminUpgradeabilityProxy

Compiler Version
v0.4.24+commit.e67f0147

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2019-04-09
*/

pragma solidity ^0.4.24;
// produced by the Solididy File Flattener (c) David Appleton 2018
// contact : [email protected]
// released under Apache 2.0 licence
// input  D:\MDZA-TESTNET1\solidity-flattener\SolidityFlatteryGo\zos-lib\contracts\application\App.sol
// flattened :  Tuesday, 09-Apr-19 18:16:04 UTC
contract Proxy {
  /**
   * @dev Fallback function.
   * Implemented entirely in `_fallback`.
   */
  function () payable external {
    _fallback();
  }

  /**
   * @return The Address of the implementation.
   */
  function _implementation() internal 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 {
  }

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

library ZOSLibAddress {

  /**
   * Returns whether the target address is a contract
   * @dev This function will return false if invoked during the constructor of a contract,
   * as the code is not actually created until after the constructor finishes.
   * @param account address of the account to check
   * @return whether the target address is a contract
   */
  function isContract(address account) internal view returns (bool) {
    uint256 size;
    // XXX Currently there is no better way to check if there is a contract in an address
    // than to check the size of the code at that address.
    // See https://ethereum.stackexchange.com/a/14016/36603
    // for more details about how this works.
    // TODO Check this again before the Serenity release, because all addresses will be
    // contracts then.
    // solium-disable-next-line security/no-inline-assembly
    assembly { size := extcodesize(account) }
    return size > 0;
  }

}
interface ImplementationProvider {
  /**
   * @dev Abstract function to return the implementation address of a contract.
   * @param contractName Name of the contract.
   * @return Implementation address of the contract.
   */
  function getImplementation(string contractName) public view returns (address);
}


contract ZOSLibOwnable {
  address private _owner;

  event OwnershipTransferred(
    address indexed previousOwner,
    address indexed newOwner
  );

  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
   */
  constructor() internal {
    _owner = msg.sender;
    emit OwnershipTransferred(address(0), _owner);
  }

  /**
   * @return the address of the owner.
   */
  function owner() public view returns(address) {
    return _owner;
  }

  /**
   * @dev Throws if called by any account other than the owner.
   */
  modifier onlyOwner() {
    require(isOwner());
    _;
  }

  /**
   * @return true if `msg.sender` is the owner of the contract.
   */
  function isOwner() public view returns(bool) {
    return msg.sender == _owner;
  }

  /**
   * @dev Allows the current owner to relinquish control of the contract.
   * @notice Renouncing to ownership will leave the contract without an owner.
   * It will not be possible to call the functions with the `onlyOwner`
   * modifier anymore.
   */
  function renounceOwnership() public onlyOwner {
    emit OwnershipTransferred(_owner, address(0));
    _owner = address(0);
  }

  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to.
   */
  function transferOwnership(address newOwner) public onlyOwner {
    _transferOwnership(newOwner);
  }

  /**
   * @dev Transfers control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to.
   */
  function _transferOwnership(address newOwner) internal {
    require(newOwner != address(0));
    emit OwnershipTransferred(_owner, newOwner);
    _owner = newOwner;
  }
}
contract Package is ZOSLibOwnable {
  /**
   * @dev Emitted when a version is added to the package.
   * @param semanticVersion Name of the added version.
   * @param contractAddress Contract associated with the version.
   * @param contentURI Optional content URI with metadata of the version.
   */
  event VersionAdded(uint64[3] semanticVersion, address contractAddress, bytes contentURI);

  struct Version {
    uint64[3] semanticVersion;
    address contractAddress;
    bytes contentURI; 
  }

  mapping (bytes32 => Version) internal versions;
  mapping (uint64 => bytes32) internal majorToLatestVersion;
  uint64 internal latestMajor;

  /**
   * @dev Returns a version given its semver identifier.
   * @param semanticVersion Semver identifier of the version.
   * @return Contract address and content URI for the version, or zero if not exists.
   */
  function getVersion(uint64[3] semanticVersion) public view returns (address contractAddress, bytes contentURI) {
    Version storage version = versions[semanticVersionHash(semanticVersion)];
    return (version.contractAddress, version.contentURI); 
  }

  /**
   * @dev Returns a contract for a version given its semver identifier.
   * This method is equivalent to `getVersion`, but returns only the contract address.
   * @param semanticVersion Semver identifier of the version.
   * @return Contract address for the version, or zero if not exists.
   */
  function getContract(uint64[3] semanticVersion) public view returns (address contractAddress) {
    Version storage version = versions[semanticVersionHash(semanticVersion)];
    return version.contractAddress;
  }

  /**
   * @dev Adds a new version to the package. Only the Owner can add new versions.
   * Reverts if the specified semver identifier already exists. 
   * Emits a `VersionAdded` event if successful.
   * @param semanticVersion Semver identifier of the version.
   * @param contractAddress Contract address for the version, must be non-zero.
   * @param contentURI Optional content URI for the version.
   */
  function addVersion(uint64[3] semanticVersion, address contractAddress, bytes contentURI) public onlyOwner {
    require(contractAddress != address(0), "Contract address is required");
    require(!hasVersion(semanticVersion), "Given version is already registered in package");
    require(!semanticVersionIsZero(semanticVersion), "Version must be non zero");

    // Register version
    bytes32 versionId = semanticVersionHash(semanticVersion);
    versions[versionId] = Version(semanticVersion, contractAddress, contentURI);
    
    // Update latest major
    uint64 major = semanticVersion[0];
    if (major > latestMajor) {
      latestMajor = semanticVersion[0];
    }

    // Update latest version for this major
    uint64 minor = semanticVersion[1];
    uint64 patch = semanticVersion[2];
    uint64[3] latestVersionForMajor = versions[majorToLatestVersion[major]].semanticVersion;
    if (semanticVersionIsZero(latestVersionForMajor) // No latest was set for this major
       || (minor > latestVersionForMajor[1]) // Or current minor is greater 
       || (minor == latestVersionForMajor[1] && patch > latestVersionForMajor[2]) // Or current patch is greater
       ) { 
      majorToLatestVersion[major] = versionId;
    }

    emit VersionAdded(semanticVersion, contractAddress, contentURI);
  }

  /**
   * @dev Checks whether a version is present in the package.
   * @param semanticVersion Semver identifier of the version.
   * @return true if the version is registered in this package, false otherwise.
   */
  function hasVersion(uint64[3] semanticVersion) public view returns (bool) {
    Version storage version = versions[semanticVersionHash(semanticVersion)];
    return address(version.contractAddress) != address(0);
  }

  /**
   * @dev Returns the version with the highest semver identifier registered in the package.
   * For instance, if `1.2.0`, `1.3.0`, and `2.0.0` are present, will always return `2.0.0`, regardless 
   * of the order in which they were registered. Returns zero if no versions are registered.
   * @return Semver identifier, contract address, and content URI for the version, or zero if not exists.
   */
  function getLatest() public view returns (uint64[3] semanticVersion, address contractAddress, bytes contentURI) {
    return getLatestByMajor(latestMajor);
  }

  /**
   * @dev Returns the version with the highest semver identifier for the given major.
   * For instance, if `1.2.0`, `1.3.0`, and `2.0.0` are present, will return `1.3.0` for major `1`, 
   * regardless of the order in which they were registered. Returns zero if no versions are registered
   * for the specified major.
   * @param major Major identifier to query
   * @return Semver identifier, contract address, and content URI for the version, or zero if not exists.
   */
  function getLatestByMajor(uint64 major) public view returns (uint64[3] semanticVersion, address contractAddress, bytes contentURI) {
    Version storage version = versions[majorToLatestVersion[major]];
    return (version.semanticVersion, version.contractAddress, version.contentURI); 
  }

  function semanticVersionHash(uint64[3] version) internal pure returns (bytes32) {
    return keccak256(abi.encodePacked(version[0], version[1], version[2]));
  }

  function semanticVersionIsZero(uint64[3] version) internal pure returns (bool) {
    return version[0] == 0 && version[1] == 0 && version[2] == 0;
  }
}

contract UpgradeabilityProxy is Proxy {
  /**
   * @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 "org.zeppelinos.proxy.implementation", and is
   * validated in the constructor.
   */
  bytes32 private constant IMPLEMENTATION_SLOT = 0x7050c9e0f4ca769c69bd3a8ef740bc37934f8e2c036e5a723fd8ee048ed3f8c3;

  /**
   * @dev Contract constructor.
   * @param _implementation 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 _implementation, bytes _data) public payable {
    assert(IMPLEMENTATION_SLOT == keccak256("org.zeppelinos.proxy.implementation"));
    _setImplementation(_implementation);
    if(_data.length > 0) {
      require(_implementation.delegatecall(_data));
    }
  }

  /**
   * @dev Returns the current implementation.
   * @return Address of the current implementation
   */
  function _implementation() internal 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) private {
    require(ZOSLibAddress.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address");

    bytes32 slot = IMPLEMENTATION_SLOT;

    assembly {
      sstore(slot, newImplementation)
    }
  }
}

contract AdminUpgradeabilityProxy is UpgradeabilityProxy {
  /**
   * @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 "org.zeppelinos.proxy.admin", and is
   * validated in the constructor.
   */
  bytes32 private constant ADMIN_SLOT = 0x10d6a54a4754c8869d6886b5f5d7fbfa5b4522237ea5c60d11bc4e7a1ff9390b;

  /**
   * @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();
    }
  }

  /**
   * Contract constructor.
   * @param _implementation 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 _implementation, address _admin, bytes _data) UpgradeabilityProxy(_implementation, _data) public payable {
    assert(ADMIN_SLOT == keccak256("org.zeppelinos.proxy.admin"));

    _setAdmin(_admin);
  }

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

  /**
   * @return The address of the implementation.
   */
  function implementation() external view 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 data) payable external ifAdmin {
    _upgradeTo(newImplementation);
    require(newImplementation.delegatecall(data));
  }

  /**
   * @return 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 {
    require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
    super._willFallback();
  }
}

contract App is ZOSLibOwnable {
  /**
   * @dev Emitted when a new proxy is created.
   * @param proxy Address of the created proxy.
   */
  event ProxyCreated(address proxy);

  /**
   * @dev Emitted when a package dependency is changed in the application.
   * @param providerName Name of the package that changed.
   * @param package Address of the package associated to the name.
   * @param version Version of the package in use.
   */
  event PackageChanged(string providerName, address package, uint64[3] version);

  /**
   * @dev Tracks a package in a particular version, used for retrieving implementations
   */
  struct ProviderInfo {
    Package package;
    uint64[3] version;
  }

  /**
   * @dev Maps from dependency name to a tuple of package and version
   */
  mapping(string => ProviderInfo) internal providers;

  /**
   * @dev Constructor function.
   */
  constructor() public { }

  /**
   * @dev Returns the provider for a given package name, or zero if not set.
   * @param packageName Name of the package to be retrieved.
   * @return The provider.
   */
  function getProvider(string packageName) public view returns (ImplementationProvider provider) {
    ProviderInfo storage info = providers[packageName];
    if (address(info.package) == address(0)) return ImplementationProvider(0);
    return ImplementationProvider(info.package.getContract(info.version));
  }

  /**
   * @dev Returns information on a package given its name.
   * @param packageName Name of the package to be queried.
   * @return A tuple with the package address and pinned version given a package name, or zero if not set
   */
  function getPackage(string packageName) public view returns (Package, uint64[3]) {
    ProviderInfo storage info = providers[packageName];
    return (info.package, info.version);
  }

  /**
   * @dev Sets a package in a specific version as a dependency for this application.
   * Requires the version to be present in the package.
   * @param packageName Name of the package to set or overwrite.
   * @param package Address of the package to register.
   * @param version Version of the package to use in this application.
   */
  function setPackage(string packageName, Package package, uint64[3] version) public onlyOwner {
    require(package.hasVersion(version), "The requested version must be registered in the given package");
    providers[packageName] = ProviderInfo(package, version);
    emit PackageChanged(packageName, package, version);
  }

  /**
   * @dev Unsets a package given its name.
   * Reverts if the package is not set in the application.
   * @param packageName Name of the package to remove.
   */
  function unsetPackage(string packageName) public onlyOwner {
    require(address(providers[packageName].package) != address(0), "Package to unset not found");
    delete providers[packageName];
    emit PackageChanged(packageName, address(0), [uint64(0), uint64(0), uint64(0)]);
  }

  /**
   * @dev Returns the implementation address for a given contract name, provided by the `ImplementationProvider`.
   * @param packageName Name of the package where the contract is contained.
   * @param contractName Name of the contract.
   * @return Address where the contract is implemented.
   */
  function getImplementation(string packageName, string contractName) public view returns (address) {
    ImplementationProvider provider = getProvider(packageName);
    if (address(provider) == address(0)) return address(0);
    return provider.getImplementation(contractName);
  }

  /**
   * @dev Creates a new proxy for the given contract and forwards a function call to it.
   * This is useful to initialize the proxied contract.
   * @param packageName Name of the package where the contract is contained.
   * @param contractName Name of the contract.
   * @param admin Address of the proxy administrator.
   * @param data Data to send as msg.data to the corresponding 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.
   * @return Address of the new proxy.
   */
   function create(string packageName, string contractName, address admin, bytes data) payable public returns (AdminUpgradeabilityProxy) {
     address implementation = getImplementation(packageName, contractName);
     AdminUpgradeabilityProxy proxy = (new AdminUpgradeabilityProxy).value(msg.value)(implementation, admin, data);
     emit ProxyCreated(proxy);
     return proxy;
  }
}

Contract ABI

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

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Swarm Source

bzzr://799fc03774f5cb4bee9c4bdd3d349349fea001ce774a782cd4e9eb1277661ea1
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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