Token dForce

 

Overview ERC20

Price
$0.05 @ 0.000029 ETH (-2.73%)
Fully Diluted Market Cap
Total Supply:
15,059,915.037179 DF

Holders:
2,228 addresses
Balance
0 DF

Value
$0.00
0xaf77312ed6220e1775d7ed044381f8ad2bc1f74a
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OVERVIEW

dForce Lending & Synthetic Asset Protocol, a global pool-based lending protocol where users can mint a variety of synthetic assets against yield-on collaterals to achieve better capital efficiency.

Market

Volume (24H):$2,616,479.00
Market Capitalization:$20,835,896.00
Circulating Supply:441,532,304.00 DF
Market Data Source: Coinmarketcap


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# Exchange Pair Price  24H Volume % Volume

Contract Source Code Verified (Exact Match)

Contract Name:
BeaconProxy

Compiler Version
v0.6.11+commit.5ef660b1

Optimization Enabled:
Yes with 100 runs

Other Settings:
default evmVersion
File 1 of 4 : BeaconProxy.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./Proxy.sol";
import "../utils/Address.sol";
import "./IBeacon.sol";

/**
 * @dev This contract implements a proxy that gets the implementation address for each call from a {UpgradeableBeacon}.
 *
 * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't
 * conflict with the storage layout of the implementation behind the proxy.
 *
 * _Available since v3.4._
 */
contract BeaconProxy is Proxy {
    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 private constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Initializes the proxy with `beacon`.
     *
     * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This
     * will typically be an encoded function call, and allows initializating the storage of the proxy like a Solidity
     * constructor.
     *
     * Requirements:
     *
     * - `beacon` must be a contract with the interface {IBeacon}.
     */
    constructor(address beacon, bytes memory data) public payable {
        assert(_BEACON_SLOT == bytes32(uint256(keccak256("eip1967.proxy.beacon")) - 1));
        _setBeacon(beacon, data);
    }

    /**
     * @dev Returns the current beacon address.
     */
    function _beacon() internal view virtual returns (address beacon) {
        bytes32 slot = _BEACON_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            beacon := sload(slot)
        }
    }

    /**
     * @dev Returns the current implementation address of the associated beacon.
     */
    function _implementation() internal view virtual override returns (address) {
        return IBeacon(_beacon()).implementation();
    }

    /**
     * @dev Changes the proxy to use a new beacon.
     *
     * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon.
     *
     * Requirements:
     *
     * - `beacon` must be a contract.
     * - The implementation returned by `beacon` must be a contract.
     */
    function _setBeacon(address beacon, bytes memory data) internal virtual {
        require(
            Address.isContract(beacon),
            "BeaconProxy: beacon is not a contract"
        );
        require(
            Address.isContract(IBeacon(beacon).implementation()),
            "BeaconProxy: beacon implementation is not a contract"
        );
        bytes32 slot = _BEACON_SLOT;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, beacon)
        }

        if (data.length > 0) {
            Address.functionDelegateCall(_implementation(), data, "BeaconProxy: function call failed");
        }
    }
}

File 2 of 4 : Proxy.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @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 virtual {
        // 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 view virtual 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 virtual {
        _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 () external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive () external payable virtual {
        _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 3 of 4 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @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 on 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");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        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 4 of 4 : IBeacon.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 100
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"beacon","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]

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

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

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

-----Decoded View---------------
Arg [0] : beacon (address): 0xf68bb2d1aa914a4c43f00dfbe765bb7dc8167ec1
Arg [1] : data (bytes): 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

-----Encoded View---------------
14 Constructor Arguments found :
Arg [0] : 000000000000000000000000f68bb2d1aa914a4c43f00dfbe765bb7dc8167ec1
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000144
Arg [3] : 238b4bc5000000000000000000000000e72ba9418b5f2ce0a6a40501fe77c683
Arg [4] : 9aa37333000000000000000000000000096760f208390250649e3e8763348e78
Arg [5] : 3aef5562000000000000000000000000431ad2ff6a9c365805ebad47ee021148
Arg [6] : d6f7dbe000000000000000000000000000000000000000000000000000000000
Arg [7] : 000000c000000000000000000000000000000000000000000000000000000000
Arg [8] : 0000010000000000000000000000000000000000000000000000000000000000
Arg [9] : 0000001200000000000000000000000000000000000000000000000000000000
Arg [10] : 0000000664466f72636500000000000000000000000000000000000000000000
Arg [11] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [12] : 0000000244460000000000000000000000000000000000000000000000000000
Arg [13] : 0000000000000000000000000000000000000000000000000000000000000000


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