Token Audius

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Overview [ERC-20]

Price
$0.38 @ 0.000203 Eth (+0.04%)
Fully Diluted Market Cap
Max Total Supply:
1,106,802,440.902608934205358308 AUDIO

Holders:
27,140 ( 0.052%)

Transfers:
-

 
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OVERVIEW

Audius protocol offers $AUDIO which enables network security, exclusive feature access, and community-owned governance.

Market

Volume (24H):$0.00
Market Capitalization:$0.00
Circulating Supply:0.00 AUDIO
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume
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Contract Source Code Verified (Exact Match)

Contract Name:
AudiusAdminUpgradeabilityProxy

Compiler Version
v0.5.17+commit.d19bba13

Optimization Enabled:
Yes with 200 runs

Other Settings:
istanbul EvmVersion, Apache-2.0 license
/**
 *Submitted for verification at Etherscan.io on 2020-10-22
*/

// File: @openzeppelin/upgrades/contracts/upgradeability/Proxy.sol

pragma solidity ^0.5.0;

/**
 * @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.
 */
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());
  }
}

// File: @openzeppelin/upgrades/contracts/utils/Address.sol

pragma solidity ^0.5.0;

/**
 * Utility library of inline functions on addresses
 *
 * Source https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-solidity/v2.1.3/contracts/utils/Address.sol
 * This contract is copied here and renamed from the original to avoid clashes in the compiled artifacts
 * when the user imports a zos-lib contract (that transitively causes this contract to be compiled and added to the
 * build/artifacts folder) as well as the vanilla Address implementation from an openzeppelin version.
 */
library OpenZeppelinUpgradesAddress {
    /**
     * 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.
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }
}

// File: @openzeppelin/upgrades/contracts/upgradeability/BaseUpgradeabilityProxy.sol

pragma solidity ^0.5.0;



/**
 * @title BaseUpgradeabilityProxy
 * @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 BaseUpgradeabilityProxy 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 "eip1967.proxy.implementation" subtracted by 1, and is
   * validated in the constructor.
   */
  bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

  /**
   * @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) internal {
    require(OpenZeppelinUpgradesAddress.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address");

    bytes32 slot = IMPLEMENTATION_SLOT;

    assembly {
      sstore(slot, newImplementation)
    }
  }
}

// File: @openzeppelin/upgrades/contracts/upgradeability/UpgradeabilityProxy.sol

pragma solidity ^0.5.0;


/**
 * @title UpgradeabilityProxy
 * @dev Extends BaseUpgradeabilityProxy with a constructor for initializing
 * implementation and init data.
 */
contract UpgradeabilityProxy is BaseUpgradeabilityProxy {
  /**
   * @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);
    }
  }  
}

// File: contracts/AudiusAdminUpgradeabilityProxy.sol

pragma solidity ^0.5.0;



/**
 * @notice Wrapper around OpenZeppelin's UpgradeabilityProxy contract.
 * Permissions proxy upgrade logic to Audius Governance contract.
 * https://github.com/OpenZeppelin/openzeppelin-sdk/blob/release/2.8/packages/lib/contracts/upgradeability/UpgradeabilityProxy.sol
 * @dev Any logic contract that has a signature clash with this proxy contract will be unable to call those functions
 *      Please ensure logic contract functions do not share a signature with any functions defined in this file
 */
contract AudiusAdminUpgradeabilityProxy is UpgradeabilityProxy {
    address private proxyAdmin;
    string private constant ERROR_ONLY_ADMIN = (
        "AudiusAdminUpgradeabilityProxy: Caller must be current proxy admin"
    );

    /**
     * @notice Sets admin address for future upgrades
     * @param _logic - address of underlying logic contract.
     *      Passed to UpgradeabilityProxy constructor.
     * @param _proxyAdmin - address of proxy admin
     *      Set to governance contract address for all non-governance contracts
     *      Governance is deployed and upgraded to have own address as admin
     * @param _data - data of function to be called on logic contract.
     *      Passed to UpgradeabilityProxy constructor.
     */
    constructor(
      address _logic,
      address _proxyAdmin,
      bytes memory _data
    )
    UpgradeabilityProxy(_logic, _data) public payable
    {
        proxyAdmin = _proxyAdmin;
    }

    /**
     * @notice Upgrade the address of the logic contract for this proxy
     * @dev Recreation of AdminUpgradeabilityProxy._upgradeTo.
     *      Adds a check to ensure msg.sender is the Audius Proxy Admin
     * @param _newImplementation - new address of logic contract that the proxy will point to
     */
    function upgradeTo(address _newImplementation) external {
        require(msg.sender == proxyAdmin, ERROR_ONLY_ADMIN);
        _upgradeTo(_newImplementation);
    }

    /**
     * @return Current proxy admin address
     */
    function getAudiusProxyAdminAddress() external view returns (address) {
        return proxyAdmin;
    }

    /**
     * @return The address of the implementation.
     */
    function implementation() external view returns (address) {
        return _implementation();
    }

    /**
     * @notice Set the Audius Proxy Admin
     * @dev Only callable by current proxy admin address
     * @param _adminAddress - new admin address
     */
    function setAudiusProxyAdminAddress(address _adminAddress) external {
        require(msg.sender == proxyAdmin, ERROR_ONLY_ADMIN);
        proxyAdmin = _adminAddress;
    }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"address","name":"_proxyAdmin","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"payable":true,"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":true,"inputs":[],"name":"getAudiusProxyAdminAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_adminAddress","type":"address"}],"name":"setAudiusProxyAdminAddress","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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

00000000000000000000000022a9ccfdd10382d9cd18ca4437ff375bd7a87bbd0000000000000000000000004deca517d6817b6510798b7328f2314d3003abac00000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc955000000000000000000000000de21d46753633a177223faa6e56e8f6cd24cca040000000000000000000000004deca517d6817b6510798b7328f2314d3003abac00000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _logic (address): 0x22a9ccfdd10382d9cd18ca4437ff375bd7a87bbd
Arg [1] : _proxyAdmin (address): 0x4deca517d6817b6510798b7328f2314d3003abac
Arg [2] : _data (bytes): 0x485cc955000000000000000000000000de21d46753633a177223faa6e56e8f6cd24cca040000000000000000000000004deca517d6817b6510798b7328f2314d3003abac

-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 00000000000000000000000022a9ccfdd10382d9cd18ca4437ff375bd7a87bbd
Arg [1] : 0000000000000000000000004deca517d6817b6510798b7328f2314d3003abac
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000044
Arg [4] : 485cc955000000000000000000000000de21d46753633a177223faa6e56e8f6c
Arg [5] : d24cca040000000000000000000000004deca517d6817b6510798b7328f2314d
Arg [6] : 3003abac00000000000000000000000000000000000000000000000000000000


Deployed ByteCode Sourcemap

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Swarm Source

bzzr://a551cf727c8099373373b8689dcdfc966296cba633c0ebc5ddca4eebe5655689

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