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Latest 25 from a total of 7,110 transactions
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Stake | 20259259 | 20 hrs ago | IN | 0 ETH | 0.00042883 | ||||
Stake | 20259143 | 20 hrs ago | IN | 0 ETH | 0.00031702 | ||||
Stake | 20259122 | 20 hrs ago | IN | 0 ETH | 0.00035915 | ||||
Stake | 20258948 | 21 hrs ago | IN | 0 ETH | 0.00038093 | ||||
Unlock | 20257534 | 25 hrs ago | IN | 0 ETH | 0.00026609 | ||||
Stake | 20254165 | 37 hrs ago | IN | 0 ETH | 0.00049259 | ||||
Stake | 20249399 | 2 days ago | IN | 0 ETH | 0.00037144 | ||||
Unlock | 20249116 | 2 days ago | IN | 0 ETH | 0.00037945 | ||||
Claim | 20247504 | 2 days ago | IN | 0 ETH | 0.00006969 | ||||
Claim | 20247502 | 2 days ago | IN | 0 ETH | 0.00030168 | ||||
Claim | 20246888 | 2 days ago | IN | 0 ETH | 0.00026264 | ||||
Unlock | 20245943 | 2 days ago | IN | 0 ETH | 0.00051424 | ||||
Stake | 20240287 | 3 days ago | IN | 0 ETH | 0.00114958 | ||||
Claim | 20240284 | 3 days ago | IN | 0 ETH | 0.00080823 | ||||
Unlock | 20236189 | 4 days ago | IN | 0 ETH | 0.00049888 | ||||
Unlock | 20235622 | 4 days ago | IN | 0 ETH | 0.00062391 | ||||
Stake | 20234956 | 4 days ago | IN | 0 ETH | 0.00319954 | ||||
Delegate | 20229562 | 4 days ago | IN | 0 ETH | 0.00044497 | ||||
Stake | 20229559 | 4 days ago | IN | 0 ETH | 0.00076242 | ||||
Stake | 20229068 | 5 days ago | IN | 0 ETH | 0.00141458 | ||||
Claim | 20223664 | 5 days ago | IN | 0 ETH | 0.00022442 | ||||
Claim | 20223664 | 5 days ago | IN | 0 ETH | 0.00022442 | ||||
Claim | 20223664 | 5 days ago | IN | 0 ETH | 0.00022442 | ||||
Claim | 20223664 | 5 days ago | IN | 0 ETH | 0.00029901 | ||||
Unlock | 20222694 | 5 days ago | IN | 0 ETH | 0.00043814 |
Advanced mode: Intended for advanced users or developers and will display all Internal Transactions including zero value transfers. Name tag integration is not available in advanced view.
Latest 25 internal transactions (View All)
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Contract Name:
Staking
Compiler Version
v0.8.6+commit.11564f7e
Optimization Enabled:
Yes with 1600 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; pragma abicoder v2; // OpenZeppelin v4 import { Math } from "@openzeppelin/contracts/utils/math/Math.sol"; import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; /** * @title Snapshot * @author Railgun Contributors * @notice Governance contract for railgun, handles staking, voting power, and snapshotting * @dev Snapshots cannot be taken during interval 0 * wait till interval 1 before utilising snapshots */ contract Staking { using SafeERC20 for IERC20; // Constants uint256 public constant STAKE_LOCKTIME = 30 days; uint256 public constant SNAPSHOT_INTERVAL = 1 days; // Staking token IERC20 public stakingToken; // Time of deployment // solhint-disable-next-line var-name-mixedcase uint256 public immutable DEPLOY_TIME = block.timestamp; // New stake screated event Stake(address indexed account, uint256 indexed stakeID, uint256 amount); // Stake unlocked (coins removed from voting pool, 30 day delay before claiming is allowed) event Unlock(address indexed account, uint256 indexed stakeID); // Stake claimed event Claim(address indexed account, uint256 indexed stakeID); // Delegate claimed event Delegate(address indexed owner, address indexed _from, address indexed to, uint256 stakeID, uint256 amount); // Total staked uint256 public totalStaked = 0; // Snapshots for globals struct GlobalsSnapshot { uint256 interval; uint256 totalVotingPower; uint256 totalStaked; } GlobalsSnapshot[] private globalsSnapshots; // Stake struct StakeStruct { address delegate; // Address stake voting power is delegated to uint256 amount; // Amount of tokens on this stake uint256 staketime; // Time this stake was created uint256 locktime; // Time this stake can be claimed (if 0, unlock hasn't been initiated) uint256 claimedTime; // Time this stake was claimed (if 0, stake hasn't been claimed) } // Stake mapping // address => stakeID => stake mapping(address => StakeStruct[]) public stakes; // Voting power for each account mapping(address => uint256) public votingPower; // Snapshots for accounts struct AccountSnapshot { uint256 interval; uint256 votingPower; } mapping(address => AccountSnapshot[]) private accountSnapshots; /** * @notice Sets staking token * @param _stakingToken - time to get interval of */ constructor(IERC20 _stakingToken) { stakingToken = _stakingToken; // Use address 0 to store inverted totalVotingPower votingPower[address(0)] = type(uint256).max; } /** * @notice Gets total voting power in system * @return totalVotingPower */ function totalVotingPower() public view returns (uint256) { return ~votingPower[address(0)]; } /** * @notice Gets length of stakes array for address * @param _account - address to retrieve stakes array of * @return length */ function stakesLength(address _account) external view returns (uint256) { return stakes[_account].length; } /** * @notice Gets interval at time * @param _time - time to get interval of * @return interval */ function intervalAtTime(uint256 _time) public view returns (uint256) { require(_time >= DEPLOY_TIME, "Staking: Requested time is before contract was deployed"); return (_time - DEPLOY_TIME) / SNAPSHOT_INTERVAL; } /** * @notice Gets current interval * @return interval */ function currentInterval() public view returns (uint256) { return intervalAtTime(block.timestamp); } /** * @notice Returns interval of latest global snapshot * @return Latest global snapshot interval */ function latestGlobalsSnapshotInterval() public view returns (uint256) { if (globalsSnapshots.length > 0) { // If a snapshot exists return the interval it was taken return globalsSnapshots[globalsSnapshots.length - 1].interval; } else { // Else default to 0 return 0; } } /** * @notice Returns interval of latest account snapshot * @param _account - account to get latest snapshot of * @return Latest account snapshot interval */ function latestAccountSnapshotInterval(address _account) public view returns (uint256) { if (accountSnapshots[_account].length > 0) { // If a snapshot exists return the interval it was taken return accountSnapshots[_account][accountSnapshots[_account].length - 1].interval; } else { // Else default to 0 return 0; } } /** * @notice Returns length of snapshot array * @param _account - account to get snapshot array length of * @return Snapshot array length */ function accountSnapshotLength(address _account) external view returns (uint256) { return accountSnapshots[_account].length; } /** * @notice Returns length of snapshot array * @return Snapshot array length */ function globalsSnapshotLength() external view returns (uint256) { return globalsSnapshots.length; } /** * @notice Returns global snapshot at index * @param _index - account to get latest snapshot of * @return Globals snapshot */ function globalsSnapshot(uint256 _index) external view returns (GlobalsSnapshot memory) { return globalsSnapshots[_index]; } /** * @notice Returns account snapshot at index * @param _account - account to get snapshot of * @param _index - index to get snapshot at * @return Account snapshot */ function accountSnapshot(address _account, uint256 _index) external view returns (AccountSnapshot memory) { return accountSnapshots[_account][_index]; } /** * @notice Checks if accoutn and globals snapshots need updating and updates * @param _account - Account to take snapshot for */ function snapshot(address _account) internal { uint256 _currentInterval = currentInterval(); // If latest global snapshot is less than current interval, push new snapshot if(latestGlobalsSnapshotInterval() < _currentInterval) { globalsSnapshots.push(GlobalsSnapshot( _currentInterval, totalVotingPower(), totalStaked )); } // If latest account snapshot is less than current interval, push new snapshot // Skip if account is 0 address if(_account != address(0) && latestAccountSnapshotInterval(_account) < _currentInterval) { accountSnapshots[_account].push(AccountSnapshot( _currentInterval, votingPower[_account] )); } } /** * @notice Moves voting power in response to delegation or stake/unstake * @param _from - account to move voting power fom * @param _to - account to move voting power to * @param _amount - amount of voting power to move */ function moveVotingPower(address _from, address _to, uint256 _amount) internal { votingPower[_from] -= _amount; votingPower[_to] += _amount; } /** * @notice Updates vote delegation * @param _stakeID - stake to delegate * @param _to - address to delegate to */ function delegate(uint256 _stakeID, address _to) public { StakeStruct storage _stake = stakes[msg.sender][_stakeID]; require( _stake.staketime != 0, "Staking: Stake doesn't exist" ); require( _stake.locktime == 0, "Staking: Stake unlocked" ); require( _to != address(0), "Staking: Can't delegate to 0 address" ); if (_stake.delegate != _to) { // Check if snapshot needs to be taken snapshot(_stake.delegate); // From snapshot(_to); // To // Move voting power to delegatee moveVotingPower( _stake.delegate, _to, _stake.amount ); // Emit event emit Delegate(msg.sender, _stake.delegate, _to, _stakeID, _stake.amount); // Update delegation _stake.delegate = _to; } } /** * @notice Delegates voting power of stake back to self * @param _stakeID - stake to delegate back to self */ function undelegate(uint256 _stakeID) external { delegate(_stakeID, msg.sender); } /** * @notice Gets global state at interval * @param _interval - interval to get state at * @return state */ function globalsSnapshotAtSearch(uint256 _interval) internal view returns (GlobalsSnapshot memory) { require(_interval <= currentInterval(), "Staking: Interval out of bounds"); // Index of element uint256 index; // High/low for binary serach to find index // https://en.wikipedia.org/wiki/Binary_search_algorithm uint256 low = 0; uint256 high = globalsSnapshots.length; while (low < high) { uint256 mid = Math.average(low, high); // Note that mid will always be strictly less than high (i.e. it will be a valid array index) // because Math.average rounds down (it does integer division with truncation). if (globalsSnapshots[mid].interval > _interval) { high = mid; } else { low = mid + 1; } } // At this point `low` is the exclusive upper bound. Find the inclusive upper bounds and set to index if (low > 0 && globalsSnapshots[low - 1].interval == _interval) { return globalsSnapshots[low - 1]; } else { index = low; } // If index is equal to snapshot array length, then no update was made after the requested // snapshot interval. This means the latest value is the right one. if (index == globalsSnapshots.length) { return GlobalsSnapshot( _interval, totalVotingPower(), totalStaked ); } else { return globalsSnapshots[index]; } } /** * @notice Gets global state at interval * @param _interval - interval to get state at * @param _hint - off-chain computed index of interval * @return state */ function globalsSnapshotAt(uint256 _interval, uint256 _hint) external view returns (GlobalsSnapshot memory) { require(_interval <= currentInterval(), "Staking: Interval out of bounds"); // Check if hint is correct, else fall back to binary search if ( _hint <= globalsSnapshots.length && (_hint == 0 || globalsSnapshots[_hint - 1].interval < _interval) && (_hint == globalsSnapshots.length || globalsSnapshots[_hint].interval >= _interval) ) { // The hint is correct if (_hint < globalsSnapshots.length) return globalsSnapshots[_hint]; else return GlobalsSnapshot (_interval, totalVotingPower(), totalStaked); } else return globalsSnapshotAtSearch (_interval); } /** * @notice Gets account state at interval * @param _account - account to get state for * @param _interval - interval to get state at * @return state */ function accountSnapshotAtSearch(address _account, uint256 _interval) internal view returns (AccountSnapshot memory) { require(_interval <= currentInterval(), "Staking: Interval out of bounds"); // Get account snapshots array AccountSnapshot[] storage snapshots = accountSnapshots[_account]; // Index of element uint256 index; // High/low for binary serach to find index // https://en.wikipedia.org/wiki/Binary_search_algorithm uint256 low = 0; uint256 high = snapshots.length; while (low < high) { uint256 mid = Math.average(low, high); // Note that mid will always be strictly less than high (i.e. it will be a valid array index) // because Math.average rounds down (it does integer division with truncation). if (snapshots[mid].interval > _interval) { high = mid; } else { low = mid + 1; } } // At this point `low` is the exclusive upper bound. Find the inclusive upper bounds and set to index if (low > 0 && snapshots[low - 1].interval == _interval) { return snapshots[low - 1]; } else { index = low; } // If index is equal to snapshot array length, then no update was made after the requested // snapshot interval. This means the latest value is the right one. if (index == snapshots.length) { return AccountSnapshot( _interval, votingPower[_account] ); } else { return snapshots[index]; } } /** * @notice Gets account state at interval * @param _account - account to get state for * @param _interval - interval to get state at * @param _hint - off-chain computed index of interval * @return state */ function accountSnapshotAt(address _account, uint256 _interval, uint256 _hint) external view returns (AccountSnapshot memory) { require(_interval <= currentInterval(), "Staking: Interval out of bounds"); // Get account snapshots array AccountSnapshot[] storage snapshots = accountSnapshots[_account]; // Check if hint is correct, else fall back to binary search if ( _hint <= snapshots.length && (_hint == 0 || snapshots[_hint - 1].interval < _interval) && (_hint == snapshots.length || snapshots[_hint].interval >= _interval) ) { // The hint is correct if (_hint < snapshots.length) return snapshots[_hint]; else return AccountSnapshot(_interval, votingPower[_account]); } else return accountSnapshotAtSearch(_account, _interval); } /** * @notice Stake tokens * @dev This contract should be approve()'d for _amount * @param _amount - Amount to stake * @return stake ID */ function stake(uint256 _amount) public returns (uint256) { // Check if amount is not 0 require(_amount > 0, "Staking: Amount not set"); // Check if snapshot needs to be taken snapshot(msg.sender); // Get stakeID uint256 stakeID = stakes[msg.sender].length; // Set stake values stakes[msg.sender].push(StakeStruct( msg.sender, _amount, block.timestamp, 0, 0 )); // Increment global staked totalStaked += _amount; // Add voting power moveVotingPower( address(0), msg.sender, _amount ); // Transfer tokens stakingToken.safeTransferFrom(msg.sender, address(this), _amount); // Emit event emit Stake(msg.sender, stakeID, _amount); return stakeID; } /** * @notice Unlock stake tokens * @param _stakeID - Stake to unlock */ function unlock(uint256 _stakeID) public { require( stakes[msg.sender][_stakeID].staketime != 0, "Staking: Stake doesn't exist" ); require( stakes[msg.sender][_stakeID].locktime == 0, "Staking: Stake already unlocked" ); // Check if snapshot needs to be taken snapshot(msg.sender); // Set stake locktime stakes[msg.sender][_stakeID].locktime = block.timestamp + STAKE_LOCKTIME; // Remove voting power moveVotingPower( stakes[msg.sender][_stakeID].delegate, address(0), stakes[msg.sender][_stakeID].amount ); // Emit event emit Unlock(msg.sender, _stakeID); } /** * @notice Claim stake token * @param _stakeID - Stake to claim */ function claim(uint256 _stakeID) public { require( stakes[msg.sender][_stakeID].locktime != 0 && stakes[msg.sender][_stakeID].locktime < block.timestamp, "Staking: Stake not unlocked" ); require( stakes[msg.sender][_stakeID].claimedTime == 0, "Staking: Stake already claimed" ); // Check if snapshot needs to be taken snapshot(msg.sender); // Set stake claimed time stakes[msg.sender][_stakeID].claimedTime = block.timestamp; // Decrement global staked totalStaked -= stakes[msg.sender][_stakeID].amount; // Transfer tokens stakingToken.safeTransfer( msg.sender, stakes[msg.sender][_stakeID].amount ); // Emit event emit Claim(msg.sender, _stakeID); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a >= b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow, so we distribute return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC20.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity ^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); } } } }
{ "optimizer": { "enabled": true, "runs": 1600 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"contract IERC20","name":"_stakingToken","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"uint256","name":"stakeID","type":"uint256"}],"name":"Claim","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"stakeID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Delegate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"uint256","name":"stakeID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Stake","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"uint256","name":"stakeID","type":"uint256"}],"name":"Unlock","type":"event"},{"inputs":[],"name":"DEPLOY_TIME","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SNAPSHOT_INTERVAL","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"STAKE_LOCKTIME","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"},{"internalType":"uint256","name":"_index","type":"uint256"}],"name":"accountSnapshot","outputs":[{"components":[{"internalType":"uint256","name":"interval","type":"uint256"},{"internalType":"uint256","name":"votingPower","type":"uint256"}],"internalType":"struct Staking.AccountSnapshot","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"},{"internalType":"uint256","name":"_interval","type":"uint256"},{"internalType":"uint256","name":"_hint","type":"uint256"}],"name":"accountSnapshotAt","outputs":[{"components":[{"internalType":"uint256","name":"interval","type":"uint256"},{"internalType":"uint256","name":"votingPower","type":"uint256"}],"internalType":"struct Staking.AccountSnapshot","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"accountSnapshotLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_stakeID","type":"uint256"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"currentInterval","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_stakeID","type":"uint256"},{"internalType":"address","name":"_to","type":"address"}],"name":"delegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_index","type":"uint256"}],"name":"globalsSnapshot","outputs":[{"components":[{"internalType":"uint256","name":"interval","type":"uint256"},{"internalType":"uint256","name":"totalVotingPower","type":"uint256"},{"internalType":"uint256","name":"totalStaked","type":"uint256"}],"internalType":"struct Staking.GlobalsSnapshot","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_interval","type":"uint256"},{"internalType":"uint256","name":"_hint","type":"uint256"}],"name":"globalsSnapshotAt","outputs":[{"components":[{"internalType":"uint256","name":"interval","type":"uint256"},{"internalType":"uint256","name":"totalVotingPower","type":"uint256"},{"internalType":"uint256","name":"totalStaked","type":"uint256"}],"internalType":"struct Staking.GlobalsSnapshot","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"globalsSnapshotLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_time","type":"uint256"}],"name":"intervalAtTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"latestAccountSnapshotInterval","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestGlobalsSnapshotInterval","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"stake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"stakes","outputs":[{"internalType":"address","name":"delegate","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"staketime","type":"uint256"},{"internalType":"uint256","name":"locktime","type":"uint256"},{"internalType":"uint256","name":"claimedTime","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"stakesLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stakingToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalStaked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalVotingPower","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_stakeID","type":"uint256"}],"name":"undelegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_stakeID","type":"uint256"}],"name":"unlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"votingPower","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000e76c6c83af64e4c60245d8c7de953df673a7a33d
-----Decoded View---------------
Arg [0] : _stakingToken (address): 0xe76C6c83af64e4C60245D8C7dE953DF673a7A33D
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000e76c6c83af64e4c60245d8c7de953df673a7a33d
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 100.00% | $0.622655 | 41,733,237.9853 | $25,985,409.3 |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.