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Latest 25 from a total of 494 transactions
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Claim Panda Toke... | 18072888 | 365 days ago | IN | 0 ETH | 0.00689478 | ||||
Claim Panda Toke... | 17716961 | 415 days ago | IN | 0 ETH | 0.00196402 | ||||
Claim Panda Toke... | 17636332 | 426 days ago | IN | 0 ETH | 0.00340406 | ||||
Claim Panda Toke... | 17124664 | 498 days ago | IN | 0 ETH | 0.00913629 | ||||
Claim Panda Toke... | 16989055 | 518 days ago | IN | 0 ETH | 0.00373979 | ||||
Claim Panda Toke... | 16955149 | 522 days ago | IN | 0 ETH | 0.00372845 | ||||
Claim Panda Toke... | 16952420 | 523 days ago | IN | 0 ETH | 0.00285769 | ||||
Claim Panda Toke... | 16714442 | 556 days ago | IN | 0 ETH | 0.0035008 | ||||
Claim Panda Toke... | 16661510 | 564 days ago | IN | 0 ETH | 0.00291669 | ||||
Claim Panda Toke... | 16621049 | 569 days ago | IN | 0 ETH | 0.00543813 | ||||
Claim Panda Toke... | 16319202 | 612 days ago | IN | 0 ETH | 0.00257434 | ||||
Claim Panda Toke... | 16277327 | 617 days ago | IN | 0 ETH | 0.00361545 | ||||
Claim Panda Toke... | 16067283 | 647 days ago | IN | 0 ETH | 0.00095109 | ||||
Claim Panda Toke... | 16058469 | 648 days ago | IN | 0 ETH | 0.00171936 | ||||
Claim Panda Toke... | 15994342 | 657 days ago | IN | 0 ETH | 0.0019682 | ||||
Claim Panda Toke... | 15973527 | 660 days ago | IN | 0 ETH | 0.00190663 | ||||
Claim Panda Toke... | 15972785 | 660 days ago | IN | 0 ETH | 0.00471469 | ||||
Claim Panda Toke... | 15970427 | 660 days ago | IN | 0 ETH | 0.00280209 | ||||
Claim Panda Toke... | 15948113 | 663 days ago | IN | 0 ETH | 0.00400267 | ||||
Claim Panda Toke... | 15856010 | 676 days ago | IN | 0 ETH | 0.00210044 | ||||
Claim Panda Toke... | 15850266 | 677 days ago | IN | 0 ETH | 0.00096655 | ||||
Claim Panda Toke... | 15822849 | 681 days ago | IN | 0 ETH | 0.00178279 | ||||
Claim Panda Toke... | 15816248 | 682 days ago | IN | 0 ETH | 0.00168001 | ||||
Claim Panda Toke... | 15781033 | 687 days ago | IN | 0 ETH | 0.00186335 | ||||
Claim Panda Toke... | 15772305 | 688 days ago | IN | 0 ETH | 0.00162441 |
Latest 14 internal transactions
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Parent Transaction Hash | Block | From | To | |||
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15610566 | 711 days ago | 0.07816203 ETH | ||||
15447855 | 735 days ago | 0.05660426 ETH | ||||
15447790 | 735 days ago | 0.05660426 ETH | ||||
15251638 | 766 days ago | 0.20971827 ETH | ||||
15247932 | 767 days ago | 0.20971827 ETH | ||||
15045533 | 798 days ago | 0.2 ETH | ||||
15045503 | 798 days ago | 0.2 ETH | ||||
14879798 | 827 days ago | 0.19675215 ETH | ||||
14879585 | 827 days ago | 0.44169549 ETH | ||||
14879566 | 827 days ago | 0.71581403 ETH | ||||
14742523 | 850 days ago | 0.50042696 ETH | ||||
14742321 | 850 days ago | 0.18594028 ETH | ||||
14742295 | 850 days ago | 0.0148371 ETH | ||||
14741408 | 850 days ago | 0.702 ETH |
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Contract Name:
PandaClaim
Compiler Version
v0.8.6+commit.11564f7e
Optimization Enabled:
Yes with 1000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
/* ** ** dddddddd ** PPPPPPPPPPPPPPPPP d::::::d DDDDDDDDDDDDD AAA OOOOOOOOO ** P::::::::::::::::P d::::::d D::::::::::::DDD A:::A OO:::::::::OO ** P::::::PPPPPP:::::P d::::::d D:::::::::::::::DD A:::::A OO:::::::::::::OO ** PP:::::P P:::::P d:::::d DDD:::::DDDDD:::::D A:::::::A O:::::::OOO:::::::O ** P::::P P:::::Paaaaaaaaaaaaa nnnn nnnnnnnn ddddddddd:::::d aaaaaaaaaaaaa D:::::D D:::::D A:::::::::A O::::::O O::::::O ** P::::P P:::::Pa::::::::::::a n:::nn::::::::nn dd::::::::::::::d a::::::::::::a D:::::D D:::::D A:::::A:::::A O:::::O O:::::O ** P::::PPPPPP:::::P aaaaaaaaa:::::an::::::::::::::nn d::::::::::::::::d aaaaaaaaa:::::a D:::::D D:::::D A:::::A A:::::A O:::::O O:::::O ** P:::::::::::::PP a::::ann:::::::::::::::nd:::::::ddddd:::::d a::::a D:::::D D:::::D A:::::A A:::::A O:::::O O:::::O ** P::::PPPPPPPPP aaaaaaa:::::a n:::::nnnn:::::nd::::::d d:::::d aaaaaaa:::::a D:::::D D:::::D A:::::A A:::::A O:::::O O:::::O ** P::::P aa::::::::::::a n::::n n::::nd:::::d d:::::d aa::::::::::::a D:::::D D:::::D A:::::AAAAAAAAA:::::A O:::::O O:::::O ** P::::P a::::aaaa::::::a n::::n n::::nd:::::d d:::::d a::::aaaa::::::a D:::::D D:::::DA:::::::::::::::::::::A O:::::O O:::::O ** P::::P a::::a a:::::a n::::n n::::nd:::::d d:::::d a::::a a:::::a D:::::D D:::::DA:::::AAAAAAAAAAAAA:::::A O::::::O O::::::O ** PP::::::PP a::::a a:::::a n::::n n::::nd::::::ddddd::::::dda::::a a:::::a DDD:::::DDDDD:::::DA:::::A A:::::AO:::::::OOO:::::::O ** P::::::::P a:::::aaaa::::::a n::::n n::::n d:::::::::::::::::da:::::aaaa::::::a D:::::::::::::::DDA:::::A A:::::AOO:::::::::::::OO ** P::::::::P a::::::::::aa:::a n::::n n::::n d:::::::::ddd::::d a::::::::::aa:::aD::::::::::::DDD A:::::A A:::::A OO:::::::::OO ** PPPPPPPPPP aaaaaaaaaa aaaa nnnnnn nnnnnn ddddddddd ddddd aaaaaaaaaa aaaaDDDDDDDDDDDDD AAAAAAA AAAAAAA OOOOOOOOO ** */ // SPDX-License-Identifier: MIT pragma solidity ^0.8.6; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; contract PandaClaim is Ownable, ReentrancyGuard { using SafeERC20 for IERC20; address public immutable pandaToken; address public usdToken; mapping(address => uint256) public claimRecord; mapping(address => uint256) public pandaClaimSum; mapping(address => uint256) public usdClaimSum; mapping(address => uint256) public etherClaimSum; uint256 public claimCycle; bool public claimOpen; // bytes32 public merkleRoot; bytes32 public merkleRoot; uint256 public totalClaimPanda; uint256 public totalClaimUsd; uint256 public totalClaimEth; address public constant ZERO_ADDRESS = address(0); event MerkleRootChanged(bytes32 merkleRoot); event UsdTokenChanged(address usdToken); event ClaimPanda(address indexed claimant, uint256 amount, uint256 sumAmount, uint256 etherAmount, uint256 etherSumAmount, uint256 usdAmount, uint256 usdSumAmount); event WithdrawERC20(address recipient, address tokenAddress, uint256 tokenAmount); event WithdrawEther(address recipient, uint256 amount); event ClaimOpenChange(bool open); /** * ErrorCode: * PE1:PandaDAO:Zero address * PE2:PandaDAO:claim zore tokens! * PE3:PandaDAO:same _merkleRoot * PE4:PandaDAO:same usd Token! * PE5:PandaDAO:Valid claimCycle required. * PE6:PandaDAO:PandaCliam dont have enough $PANDA. * PE7:PandaDAO:Valid panda proof required. * PE8:PandaDAO:PandaDAO:claim close! * PE9:PandaDAO:transfer ether fail! * PE10:PandaDAO:invalid arguements * PE11:PandaDAO:withdrawEther fail! * PE12:PandaDAO: PandaDAO:claim open same * PE13:PandaDAO:PandaCliam dont have enough $ETH. * PE14:PandaDAO:PandaCliam dont have enough $USD. */ modifier notZeroAddr(address addr_) { require(addr_ != ZERO_ADDRESS, "PE1"); _; } /** * @dev Constructor. */ constructor( address _pandaToken, address _usdToken ) { pandaToken = _pandaToken; usdToken = _usdToken; } /** * @dev Claims tokens. * @param amount The amount of panda. * @param etherAmount The amount of ether. * @param usdAmount The amount of usd. * @param merkleProof A merkle proof proving the claim is valid. */ function claimPandaTokens(uint256 amount, uint256 etherAmount, uint256 usdAmount, bytes32[] calldata merkleProof) external nonReentrant { require(claimOpen, "PE8"); //claimCycle check require(claimRecord[msg.sender] < claimCycle, "PE5"); require(amount + etherAmount + usdAmount > 0, "PE2"); //balance check require(IERC20(pandaToken).balanceOf(address(this)) >= amount, "PE6"); require(address(this).balance >= etherAmount, "PE13"); require(IERC20(usdToken).balanceOf(address(this)) >= usdAmount, "PE14"); //merkle check bytes32 leaf = keccak256(abi.encodePacked(msg.sender, amount, etherAmount, usdAmount)); bool valid = MerkleProof.verify(merkleProof, merkleRoot, leaf); require(valid, "PE7"); //update claimCycle claimRecord[msg.sender] = claimCycle; //transfer token if(amount > 0) { IERC20(pandaToken).safeTransfer(msg.sender, amount); } if (etherAmount > 0) { (bool success,) = msg.sender.call{value:etherAmount}(""); require(success, "PE9"); } if (usdAmount > 0) { IERC20(usdToken).safeTransfer(msg.sender, usdAmount); } pandaClaimSum[msg.sender] += amount; etherClaimSum[msg.sender] += etherAmount; usdClaimSum[msg.sender] += usdAmount; totalClaimPanda += amount; totalClaimEth += etherAmount; totalClaimUsd += usdAmount; emit ClaimPanda(msg.sender, amount, pandaClaimSum[msg.sender], etherAmount, etherClaimSum[msg.sender], usdAmount, usdClaimSum[msg.sender]); } /** * @dev Sets the merkle root. Only callable if the root is not yet set. * @param _merkleRoot tokens claim merkle tree. */ function setMerkleRoot(bytes32 _merkleRoot) external onlyOwner { merkleRoot = _merkleRoot; claimCycle++; emit MerkleRootChanged(_merkleRoot); } /** * @dev update the merkle root. * @param _merkleRoot tokens claim merkle tree. */ function updateMerkleRoot(bytes32 _merkleRoot) external onlyOwner { require(merkleRoot != _merkleRoot, "PE3"); merkleRoot = _merkleRoot; emit MerkleRootChanged(_merkleRoot); } /** * @dev set Usd Token Address * @param _token token address */ function setUsdToken(address _token) external onlyOwner notZeroAddr(_token) { require(usdToken != _token, "PE4"); usdToken = _token; emit UsdTokenChanged(_token); } /** * @dev set claim open ro not * @param _open true or false */ function setClaimOpen(bool _open) external onlyOwner { require(_open != claimOpen, "PE12"); claimOpen = _open; emit ClaimOpenChange(_open); } /** * @dev withdrawERC20 tokens. * @param recipient recipient * @param tokenAddress token * @param tokenAmount amount */ function withdrawERC20( address recipient, address tokenAddress, uint256 tokenAmount ) external onlyOwner notZeroAddr(tokenAddress) { IERC20(tokenAddress).safeTransfer(recipient, tokenAmount); emit WithdrawERC20(recipient, tokenAddress, tokenAmount); } /** * @dev withdraw Ether. * @param recipient recipient * @param amount amount */ function withdrawEther(address payable recipient, uint256 amount) external onlyOwner { (bool success,) = recipient.call{value:amount}(""); require(success, "PE11"); emit WithdrawEther(recipient, amount); } fallback () external payable {} receive () external payable {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol) 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 `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, 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 `from` to `to` 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 from, address to, 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 // OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Trees proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. */ library MerkleProof { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ */ function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = _efficientHash(computedHash, proofElement); } else { // Hash(current element of the proof + current computed hash) computedHash = _efficientHash(proofElement, computedHash); } } return computedHash; } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol) 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' 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 require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @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 * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 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"); (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"); (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"); (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"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal 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 assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
{ "optimizer": { "enabled": true, "runs": 1000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_pandaToken","type":"address"},{"internalType":"address","name":"_usdToken","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"open","type":"bool"}],"name":"ClaimOpenChange","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"claimant","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"sumAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"etherAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"etherSumAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"usdAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"usdSumAmount","type":"uint256"}],"name":"ClaimPanda","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"merkleRoot","type":"bytes32"}],"name":"MerkleRootChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"usdToken","type":"address"}],"name":"UsdTokenChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"address","name":"tokenAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenAmount","type":"uint256"}],"name":"WithdrawERC20","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"WithdrawEther","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"ZERO_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimCycle","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimOpen","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"etherAmount","type":"uint256"},{"internalType":"uint256","name":"usdAmount","type":"uint256"},{"internalType":"bytes32[]","name":"merkleProof","type":"bytes32[]"}],"name":"claimPandaTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"claimRecord","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"etherClaimSum","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"merkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"pandaClaimSum","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pandaToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_open","type":"bool"}],"name":"setClaimOpen","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_merkleRoot","type":"bytes32"}],"name":"setMerkleRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"setUsdToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalClaimEth","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalClaimPanda","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalClaimUsd","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_merkleRoot","type":"bytes32"}],"name":"updateMerkleRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"usdClaimSum","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"usdToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint256","name":"tokenAmount","type":"uint256"}],"name":"withdrawERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawEther","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000003cbb7f5d7499af626026e96a2f05df806f2200dc0000000000000000000000006b175474e89094c44da98b954eedeac495271d0f
-----Decoded View---------------
Arg [0] : _pandaToken (address): 0x3cBb7f5d7499Af626026E96a2f05df806F2200DC
Arg [1] : _usdToken (address): 0x6B175474E89094C44Da98b954EedeAC495271d0F
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000003cbb7f5d7499af626026e96a2f05df806f2200dc
Arg [1] : 0000000000000000000000006b175474e89094c44da98b954eedeac495271d0f
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 100.00% | $0.005672 | 3,060,251.1465 | $17,357.38 |
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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.