Synthetix: Proxy sBTC Token contract has migrated to a new address.
ERC-20
Old Contract
Overview
Max Total Supply
69.994085605939743585 sBTC
Holders
286 (0.00%)
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
Balance
0 sBTCValue
$0.00Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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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 This contract matches the deployed Bytecode of the Source Code for Contract 0xb440DD67...B0A92d309 The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
Proxy
Compiler Version
v0.4.25+commit.59dbf8f1
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2018-12-06 */ /* =============================================== * Flattened with Solidifier by Coinage * * https://solidifier.coina.ge * =============================================== */ /* ----------------------------------------------------------------- FILE INFORMATION ----------------------------------------------------------------- file: Owned.sol version: 1.1 author: Anton Jurisevic Dominic Romanowski date: 2018-2-26 ----------------------------------------------------------------- MODULE DESCRIPTION ----------------------------------------------------------------- An Owned contract, to be inherited by other contracts. Requires its owner to be explicitly set in the constructor. Provides an onlyOwner access modifier. To change owner, the current owner must nominate the next owner, who then has to accept the nomination. The nomination can be cancelled before it is accepted by the new owner by having the previous owner change the nomination (setting it to 0). ----------------------------------------------------------------- */ pragma solidity 0.4.25; /** * @title A contract with an owner. * @notice Contract ownership can be transferred by first nominating the new owner, * who must then accept the ownership, which prevents accidental incorrect ownership transfers. */ contract Owned { address public owner; address public nominatedOwner; /** * @dev Owned Constructor */ constructor(address _owner) public { require(_owner != address(0), "Owner address cannot be 0"); owner = _owner; emit OwnerChanged(address(0), _owner); } /** * @notice Nominate a new owner of this contract. * @dev Only the current owner may nominate a new owner. */ function nominateNewOwner(address _owner) external onlyOwner { nominatedOwner = _owner; emit OwnerNominated(_owner); } /** * @notice Accept the nomination to be owner. */ function acceptOwnership() external { require(msg.sender == nominatedOwner, "You must be nominated before you can accept ownership"); emit OwnerChanged(owner, nominatedOwner); owner = nominatedOwner; nominatedOwner = address(0); } modifier onlyOwner { require(msg.sender == owner, "Only the contract owner may perform this action"); _; } event OwnerNominated(address newOwner); event OwnerChanged(address oldOwner, address newOwner); } /* ----------------------------------------------------------------- FILE INFORMATION ----------------------------------------------------------------- file: Proxyable.sol version: 1.1 author: Anton Jurisevic date: 2018-05-15 checked: Mike Spain approved: Samuel Brooks ----------------------------------------------------------------- MODULE DESCRIPTION ----------------------------------------------------------------- A proxyable contract that works hand in hand with the Proxy contract to allow for anyone to interact with the underlying contract both directly and through the proxy. ----------------------------------------------------------------- */ // This contract should be treated like an abstract contract contract Proxyable is Owned { /* The proxy this contract exists behind. */ Proxy public proxy; /* The caller of the proxy, passed through to this contract. * Note that every function using this member must apply the onlyProxy or * optionalProxy modifiers, otherwise their invocations can use stale values. */ address messageSender; constructor(address _proxy, address _owner) Owned(_owner) public { proxy = Proxy(_proxy); emit ProxyUpdated(_proxy); } function setProxy(address _proxy) external onlyOwner { proxy = Proxy(_proxy); emit ProxyUpdated(_proxy); } function setMessageSender(address sender) external onlyProxy { messageSender = sender; } modifier onlyProxy { require(Proxy(msg.sender) == proxy, "Only the proxy can call this function"); _; } modifier optionalProxy { if (Proxy(msg.sender) != proxy) { messageSender = msg.sender; } _; } modifier optionalProxy_onlyOwner { if (Proxy(msg.sender) != proxy) { messageSender = msg.sender; } require(messageSender == owner, "This action can only be performed by the owner"); _; } event ProxyUpdated(address proxyAddress); } /* ----------------------------------------------------------------- FILE INFORMATION ----------------------------------------------------------------- file: Proxy.sol version: 1.3 author: Anton Jurisevic date: 2018-05-29 ----------------------------------------------------------------- MODULE DESCRIPTION ----------------------------------------------------------------- A proxy contract that, if it does not recognise the function being called on it, passes all value and call data to an underlying target contract. This proxy has the capacity to toggle between DELEGATECALL and CALL style proxy functionality. The former executes in the proxy's context, and so will preserve msg.sender and store data at the proxy address. The latter will not. Therefore, any contract the proxy wraps in the CALL style must implement the Proxyable interface, in order that it can pass msg.sender into the underlying contract as the state parameter, messageSender. ----------------------------------------------------------------- */ contract Proxy is Owned { Proxyable public target; bool public useDELEGATECALL; constructor(address _owner) Owned(_owner) public {} function setTarget(Proxyable _target) external onlyOwner { target = _target; emit TargetUpdated(_target); } function setUseDELEGATECALL(bool value) external onlyOwner { useDELEGATECALL = value; } function _emit(bytes callData, uint numTopics, bytes32 topic1, bytes32 topic2, bytes32 topic3, bytes32 topic4) external onlyTarget { uint size = callData.length; bytes memory _callData = callData; assembly { /* The first 32 bytes of callData contain its length (as specified by the abi). * Length is assumed to be a uint256 and therefore maximum of 32 bytes * in length. It is also leftpadded to be a multiple of 32 bytes. * This means moving call_data across 32 bytes guarantees we correctly access * the data itself. */ switch numTopics case 0 { log0(add(_callData, 32), size) } case 1 { log1(add(_callData, 32), size, topic1) } case 2 { log2(add(_callData, 32), size, topic1, topic2) } case 3 { log3(add(_callData, 32), size, topic1, topic2, topic3) } case 4 { log4(add(_callData, 32), size, topic1, topic2, topic3, topic4) } } } function() external payable { if (useDELEGATECALL) { assembly { /* Copy call data into free memory region. */ let free_ptr := mload(0x40) calldatacopy(free_ptr, 0, calldatasize) /* Forward all gas and call data to the target contract. */ let result := delegatecall(gas, sload(target_slot), free_ptr, calldatasize, 0, 0) returndatacopy(free_ptr, 0, returndatasize) /* Revert if the call failed, otherwise return the result. */ if iszero(result) { revert(free_ptr, returndatasize) } return(free_ptr, returndatasize) } } else { /* Here we are as above, but must send the messageSender explicitly * since we are using CALL rather than DELEGATECALL. */ target.setMessageSender(msg.sender); assembly { let free_ptr := mload(0x40) calldatacopy(free_ptr, 0, calldatasize) /* We must explicitly forward ether to the underlying contract as well. */ let result := call(gas, sload(target_slot), callvalue, free_ptr, calldatasize, 0, 0) returndatacopy(free_ptr, 0, returndatasize) if iszero(result) { revert(free_ptr, returndatasize) } return(free_ptr, returndatasize) } } } modifier onlyTarget { require(Proxyable(msg.sender) == target, "Must be proxy target"); _; } event TargetUpdated(Proxyable newTarget); }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"constant":false,"inputs":[{"name":"_owner","type":"address"}],"name":"nominateNewOwner","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"nominatedOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_target","type":"address"}],"name":"setTarget","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"acceptOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"callData","type":"bytes"},{"name":"numTopics","type":"uint256"},{"name":"topic1","type":"bytes32"},{"name":"topic2","type":"bytes32"},{"name":"topic3","type":"bytes32"},{"name":"topic4","type":"bytes32"}],"name":"_emit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"useDELEGATECALL","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"value","type":"bool"}],"name":"setUseDELEGATECALL","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"target","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_owner","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newTarget","type":"address"}],"name":"TargetUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newOwner","type":"address"}],"name":"OwnerNominated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"oldOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"OwnerChanged","type":"event"}]
Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://4bca7a8142e5efe23616315f58e7703485e53941970886ceb05f20ab767ddea0
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