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Read Proxy
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Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
This contract has been partially verified via Sourcify.
View contract in Sourcify repository
- Contract name:
- OwnableDelegateProxy
- Optimization enabled
- true
- Compiler version
- v0.4.23+commit.124ca40d
- Optimization runs
- 200
- EVM Version
- byzantium
- Verified at
- 2026-03-16T02:20:29.951992Z
Constructor Arguments
000000000000000000000000313db3306bb4835e94dd7b8a5c6fbaf7c7cff14e000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc955000000000000000000000000313db3306bb4835e94dd7b8a5c6fbaf7c7cff14e000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000
Arg [0] (address) : 0x313db3306bb4835e94dd7b8a5c6fbaf7c7cff14e
Arg [1] (address) : 0xf9e266af4bca5890e2781812cc6a6e89495a79f2
Arg [2] (bytes) : 485cc955000000000000000000000000313db3306bb4835e94dd7b8a5c6fbaf7c7cff14e000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c1
OwnableDelegateProxy.sol
contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
}
Compiler Settings
{"remappings":[],"optimizer":{"runs":200,"enabled":true},"libraries":{},"evmVersion":"byzantium","compilationTarget":{"OwnableDelegateProxy.sol":"OwnableDelegateProxy"}}
Contract ABI
[{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":""}],"name":"proxyOwner","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"upgradeTo","inputs":[{"type":"address","name":"implementation"}],"constant":false},{"type":"function","stateMutability":"pure","payable":false,"outputs":[{"type":"uint256","name":"proxyTypeId"}],"name":"proxyType","inputs":[],"constant":true},{"type":"function","stateMutability":"payable","payable":true,"outputs":[],"name":"upgradeToAndCall","inputs":[{"type":"address","name":"implementation"},{"type":"bytes","name":"data"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":""}],"name":"implementation","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":""}],"name":"upgradeabilityOwner","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"transferProxyOwnership","inputs":[{"type":"address","name":"newOwner"}],"constant":false},{"type":"constructor","stateMutability":"nonpayable","payable":false,"inputs":[{"type":"address","name":"owner"},{"type":"address","name":"initialImplementation"},{"type":"bytes","name":"calldata"}]},{"type":"fallback","stateMutability":"payable","payable":true},{"type":"event","name":"ProxyOwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","indexed":false},{"type":"address","name":"newOwner","indexed":false}],"anonymous":false},{"type":"event","name":"Upgraded","inputs":[{"type":"address","name":"implementation","indexed":true}],"anonymous":false}]
Contract Creation Code
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