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83.496943728830529408 ETH
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$271,958.76 (@ $3,257.11/ETH)Token Holdings
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Latest 25 from a total of 722 transactions
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Redeem | 20017463 | 29 days ago | IN | 0 ETH | 0.00101409 | ||||
Redeem | 19994312 | 32 days ago | IN | 0 ETH | 0.00099039 | ||||
Redeem | 19988446 | 33 days ago | IN | 0 ETH | 0.00096159 | ||||
Redeem | 19845551 | 53 days ago | IN | 0 ETH | 0.00062839 | ||||
Redeem | 19696231 | 74 days ago | IN | 0 ETH | 0.00120593 | ||||
Redeem | 19647265 | 81 days ago | IN | 0 ETH | 0.00267058 | ||||
Redeem | 19538614 | 96 days ago | IN | 0 ETH | 0.00320033 | ||||
Redeem | 19531837 | 97 days ago | IN | 0 ETH | 0.00340639 | ||||
Redeem | 19529514 | 97 days ago | IN | 0 ETH | 0.00433718 | ||||
Redeem | 19417791 | 113 days ago | IN | 0 ETH | 0.00900385 | ||||
Redeem | 19372899 | 119 days ago | IN | 0 ETH | 0.00962691 | ||||
Redeem | 19329807 | 125 days ago | IN | 0 ETH | 0.00976114 | ||||
Redeem | 19266894 | 134 days ago | IN | 0 ETH | 0.00299256 | ||||
Redeem | 19265284 | 134 days ago | IN | 0 ETH | 0.00414331 | ||||
Redeem | 19212141 | 142 days ago | IN | 0 ETH | 0.00332201 | ||||
Redeem | 19038489 | 166 days ago | IN | 0 ETH | 0.00364765 | ||||
Redeem | 19025633 | 168 days ago | IN | 0 ETH | 0.0045789 | ||||
Redeem | 19012060 | 170 days ago | IN | 0 ETH | 0.00306672 | ||||
Redeem | 19010277 | 170 days ago | IN | 0 ETH | 0.00251647 | ||||
Redeem | 19009256 | 170 days ago | IN | 0 ETH | 0.00338077 | ||||
Redeem | 18938680 | 180 days ago | IN | 0 ETH | 0.00221401 | ||||
Redeem | 18923640 | 182 days ago | IN | 0 ETH | 0.00215598 | ||||
Redeem | 18910647 | 184 days ago | IN | 0 ETH | 0.00153773 | ||||
Redeem | 18876806 | 189 days ago | IN | 0 ETH | 0.00344376 | ||||
Redeem | 18867946 | 190 days ago | IN | 0 ETH | 0.00262755 |
Latest 25 internal transactions (View All)
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Parent Transaction Hash | Block | From | To | Value | ||
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20017463 | 29 days ago | 0.74672798 ETH | ||||
19994312 | 32 days ago | 0.31905726 ETH | ||||
19988446 | 33 days ago | 0.85089325 ETH | ||||
19845551 | 53 days ago | 0.48075618 ETH | ||||
19696231 | 74 days ago | 1.26506301 ETH | ||||
19647265 | 81 days ago | 0.56399628 ETH | ||||
19538614 | 96 days ago | 1.14968607 ETH | ||||
19531837 | 97 days ago | 1.34233636 ETH | ||||
19529514 | 97 days ago | 0.90805479 ETH | ||||
19417791 | 113 days ago | 0.85075499 ETH | ||||
19372899 | 119 days ago | 0.65084501 ETH | ||||
19329807 | 125 days ago | 0.25687335 ETH | ||||
19266894 | 134 days ago | 0.42834569 ETH | ||||
19265284 | 134 days ago | 0.82223446 ETH | ||||
19212141 | 142 days ago | 1.01382515 ETH | ||||
19038489 | 166 days ago | 0.53924094 ETH | ||||
19025633 | 168 days ago | 0.80033042 ETH | ||||
19012060 | 170 days ago | 0.75027312 ETH | ||||
19010277 | 170 days ago | 0.9099581 ETH | ||||
19009256 | 170 days ago | 1.24305044 ETH | ||||
18938680 | 180 days ago | 0.54071429 ETH | ||||
18923640 | 182 days ago | 0.3736015 ETH | ||||
18910647 | 184 days ago | 0.32149515 ETH | ||||
18876806 | 189 days ago | 0.64330614 ETH | ||||
18867946 | 190 days ago | 0.48290022 ETH |
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Contract Name:
PandaDAOFarewell
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/utils/math/Math.sol"; 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"; import "./Operations.sol"; import "./ITerminalV1_1.sol"; contract PandaDAOFarewell is Ownable, ReentrancyGuard { using Math for uint256; using SafeERC20 for IERC20; IERC20 public pandaToken; ITerminalV1_1 public terminalv1_1; bool public openRefund = true; uint256[] private operationsRedeem = [Operations.Redeem]; mapping(address => uint256) public refundMap; uint256 public constant PANDADAO_PROJECT_ID = 409; event Redeem(address indexed recipient, uint256 tokenAmount, uint256 receiveEther); event RefundOpenChanged(bool open); event WithdrawERC20(address recipient, address tokenAddress, uint256 tokenAmount); event WithdrawEther(address recipient, uint256 amount); modifier refundOpenning() { require(openRefund, "PandaDAO: refund close."); _; } modifier assertNotContract( address addr_ ) { require (addr_ == tx.origin, "Smart contract caller not allowed"); _; } /** * @dev Constructor. */ constructor( address pandaToken_, address terminalv1_1_ ) { pandaToken = IERC20(pandaToken_); terminalv1_1 = ITerminalV1_1(terminalv1_1_); } /** * @dev redeem $PANDA tokens. * @param amount The amount of the $PANDA. */ function redeem(uint256 amount) external assertNotContract(msg.sender) nonReentrant refundOpenning { require(amount > 0, "PandaDAO: Invalid amount required."); require(pandaToken.balanceOf(msg.sender) >= amount, "PandaDAO: you do not have enough PandaToken."); uint256 etherBalance = address(this).balance; uint256 etherAmount = amount.mulDiv(etherBalance, pandaToken.totalSupply()); require(etherBalance >= etherAmount, "PandaDAO: Refund Contract dont have enough ether!"); refundMap[msg.sender] = refundMap[msg.sender] + amount; terminalv1_1.redeem(msg.sender, PANDADAO_PROJECT_ID, amount, 0, payable(msg.sender), false); (bool success,) = msg.sender.call{value:etherAmount}(""); require(success, "redeem ether fail!"); emit Redeem(msg.sender, amount, etherAmount); } function setRefundOpen(bool open_) external onlyOwner { openRefund = open_; emit RefundOpenChanged(open_); } /** * @dev withdrawERC20 tokens. * @param tokenAddress token * @param tokenAmount amount */ function withdrawERC20( address tokenAddress, uint256 tokenAmount ) external onlyOwner { require(tokenAddress != address(0), "Zero Token address!"); IERC20(tokenAddress).safeTransfer(msg.sender, tokenAmount); emit WithdrawERC20(msg.sender, tokenAddress, tokenAmount); } /** * @dev withdraw Ether. * @param amount amount */ function withdrawEther(uint256 amount) external onlyOwner { (bool success,) = msg.sender.call{value:amount}(""); require(success, "withdrawEther fail!"); emit WithdrawEther(msg.sender, amount); } fallback () external payable {} receive () external payable {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @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. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. It the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. // We also know that `k`, the position of the most significant bit, is such that `msb(a) = 2**k`. // This gives `2**k < a <= 2**(k+1)` → `2**(k/2) <= sqrt(a) < 2 ** (k/2+1)`. // Using an algorithm similar to the msb conmputation, we are able to compute `result = 2**(k/2)` which is a // good first aproximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1; uint256 x = a; if (x >> 128 > 0) { x >>= 128; result <<= 64; } if (x >> 64 > 0) { x >>= 64; result <<= 32; } if (x >> 32 > 0) { x >>= 32; result <<= 16; } if (x >> 16 > 0) { x >>= 16; result <<= 8; } if (x >> 8 > 0) { x >>= 8; result <<= 4; } if (x >> 4 > 0) { x >>= 4; result <<= 2; } if (x >> 2 > 0) { result <<= 1; } // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { uint256 result = sqrt(a); if (rounding == Rounding.Up && result * result < a) { result += 1; } return result; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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); /** * @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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Tree 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. * * WARNING: You should avoid using leaf values that are 64 bytes long prior to * hashing, or use a hash function other than keccak256 for hashing leaves. * This is because the concatenation of a sorted pair of internal nodes in * the merkle tree could be reinterpreted as a leaf value. */ 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 Calldata version of {verify} * * _Available since v4.7._ */ function verifyCalldata( bytes32[] calldata proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProofCalldata(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle 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++) { computedHash = _hashPair(computedHash, proof[i]); } return computedHash; } /** * @dev Calldata version of {processProof} * * _Available since v4.7._ */ function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { computedHash = _hashPair(computedHash, proof[i]); } return computedHash; } /** * @dev Returns true if the `leaves` can be proved to be a part of a Merkle tree defined by * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}. * * _Available since v4.7._ */ function multiProofVerify( bytes32[] memory proof, bool[] memory proofFlags, bytes32 root, bytes32[] memory leaves ) internal pure returns (bool) { return processMultiProof(proof, proofFlags, leaves) == root; } /** * @dev Calldata version of {multiProofVerify} * * _Available since v4.7._ */ function multiProofVerifyCalldata( bytes32[] calldata proof, bool[] calldata proofFlags, bytes32 root, bytes32[] memory leaves ) internal pure returns (bool) { return processMultiProofCalldata(proof, proofFlags, leaves) == root; } /** * @dev Returns the root of a tree reconstructed from `leaves` and the sibling nodes in `proof`, * consuming from one or the other at each step according to the instructions given by * `proofFlags`. * * _Available since v4.7._ */ function processMultiProof( bytes32[] memory proof, bool[] memory proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { return hashes[totalHashes - 1]; } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } /** * @dev Calldata version of {processMultiProof} * * _Available since v4.7._ */ function processMultiProofCalldata( bytes32[] calldata proof, bool[] calldata proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { return hashes[totalHashes - 1]; } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) { return a < b ? _efficientHash(a, b) : _efficientHash(b, a); } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { /// @solidity memory-safe-assembly assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (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 Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { 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 (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/draft-IERC20Permit.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)); } } function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @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"); } } }
/* ** ** 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; library Operations { uint256 public constant Configure = 1; uint256 public constant PrintPreminedTickets = 2; uint256 public constant Redeem = 3; uint256 public constant Migrate = 4; uint256 public constant SetHandle = 5; uint256 public constant SetUri = 6; uint256 public constant ClaimHandle = 7; uint256 public constant RenewHandle = 8; uint256 public constant Issue = 9; uint256 public constant Stake = 10; uint256 public constant Unstake = 11; uint256 public constant Transfer = 12; uint256 public constant Lock = 13; uint256 public constant SetPayoutMods = 14; uint256 public constant SetTicketMods = 15; uint256 public constant SetTerminal = 16; uint256 public constant PrintTickets = 17; }
/* ** ** 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; interface ITerminalV1_1 { function redeem( address _account, uint256 _projectId, uint256 _amount, uint256 _minReturnedWei, address payable _beneficiary, bool _preferUnstaked ) external returns (uint256 returnAmount); }
// 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 v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (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 /// @solidity memory-safe-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
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Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000003cbb7f5d7499af626026e96a2f05df806f2200dc000000000000000000000000981c8ecd009e3e84ee1ff99266bf1461a12e5c68
-----Decoded View---------------
Arg [0] : pandaToken_ (address): 0x3cBb7f5d7499Af626026E96a2f05df806F2200DC
Arg [1] : terminalv1_1_ (address): 0x981c8ECD009E3E84eE1fF99266BF1461a12e5c68
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000003cbb7f5d7499af626026e96a2f05df806f2200dc
Arg [1] : 000000000000000000000000981c8ecd009e3e84ee1ff99266bf1461a12e5c68
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 100.00% | $3,257.97 | 83.4969 | $272,030.83 |
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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.