ERC-20
Overview
Max Total Supply
100,000,000,000 eggsGPT
Holders
33
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 6 Decimals)
Balance
990,094,099.113123 eggsGPTValue
$0.00Loading...
Loading
Loading...
Loading
Loading...
Loading
# | Exchange | Pair | Price | 24H Volume | % Volume |
---|
Contract Name:
eggsGPT
Compiler Version
v0.8.18+commit.87f61d96
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2023-02-23 */ pragma solidity 0.8.18; // SPDX-License-Identifier: MIT /* /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure * unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an * array of EnumerableSet. * ==== * library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. * function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. * function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). * function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). * function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. / function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). / function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). / function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. / function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { bytes32[] memory store = _values(set._inner); bytes32[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). / function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). / function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. / function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). / function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values in the set. O(1). / function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. / function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/math/Math.sol // 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. If 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)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 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) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. / function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. / function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. / function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10**64) { value /= 10**64; result += 64; } if (value >= 10**32) { value /= 10**32; result += 32; } if (value >= 10**16) { value /= 10**16; result += 16; } if (value >= 10**8) { value /= 10**8; result += 8; } if (value >= 10**4) { value /= 10**4; result += 4; } if (value >= 10**2) { value /= 10**2; result += 2; } if (value >= 10**1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. / function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. / function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. / function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0); } } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Strings.sol // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. / library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. / function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/IAccessControl.sol // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. / interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ / event RoleAdminChanged( bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole ); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. / event RoleGranted( bytes32 indexed role, address indexed account, address indexed sender ); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) / event RoleRevoked( bytes32 indexed role, address indexed account, address indexed sender ); /** * @dev Returns `true` if `account` has been granted `role`. / function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. / function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. / function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. / function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. / function renounceRole(bytes32 role, address account) external; } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/IAccessControlEnumerable.sol // OpenZeppelin Contracts v4.4.1 (access/IAccessControlEnumerable.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControlEnumerable declared to support ERC165 detection. / interface IAccessControlEnumerable is IAccessControl { /** * @dev Returns one of the accounts that have `role`. `index` must be a * value between 0 and {getRoleMemberCount}, non-inclusive. * * Role bearers are not sorted in any particular way, and their ordering may * change at any point. * * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure * you perform all queries on the same block. See the following * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] * for more information. / function getRoleMember(bytes32 role, uint256 index) external view returns (address); /** * @dev Returns the number of accounts that have `role`. Can be used * together with {getRoleMember} to enumerate all bearers of a role. / function getRoleMemberCount(bytes32 role) external view returns (uint256); } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Context.sol // 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; } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/AccessControl.sol // OpenZeppelin Contracts (last updated v4.7.0) (access/AccessControl.sol) pragma solidity ^0.8.0; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. / abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ / modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. / function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ / function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ / function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(account), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. / function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. / function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. / function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. * * May emit a {RoleRevoked} event. / function renounceRole(bytes32 role, address account) public virtual override { require( account == _msgSender(), "AccessControl: can only renounce roles for self" ); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. / function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. / function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. / function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. / function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/AccessControlEnumerable.sol // OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol) pragma solidity ^0.8.0; /** * @dev Extension of {AccessControl} that allows enumerating the members of each role. / abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl { using EnumerableSet for EnumerableSet.AddressSet; mapping(bytes32 => EnumerableSet.AddressSet) private _roleMembers; /** * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControlEnumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns one of the accounts that have `role`. `index` must be a * value between 0 and {getRoleMemberCount}, non-inclusive. * * Role bearers are not sorted in any particular way, and their ordering may * change at any point. * * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure * you perform all queries on the same block. See the following * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] * for more information. / function getRoleMember(bytes32 role, uint256 index) public view virtual override returns (address) { return _roleMembers[role].at(index); } /** * @dev Returns the number of accounts that have `role`. Can be used * together with {getRoleMember} to enumerate all bearers of a role. / function getRoleMemberCount(bytes32 role) public view virtual override returns (uint256) { return _roleMembers[role].length(); } /** * @dev Overload {_grantRole} to track enumerable memberships / function _grantRole(bytes32 role, address account) internal virtual override { super._grantRole(role, account); _roleMembers[role].add(account); } /** * @dev Overload {_revokeRole} to track enumerable memberships / function _revokeRole(bytes32 role, address account) internal virtual override { super._revokeRole(role, account); _roleMembers[role].remove(account); } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; /** * @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); } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Address.sol // 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 functionCallWithValue( target, data, 0, "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" ); (bool success, bytes memory returndata) = target.call{value: value}( data ); return verifyCallResultFromTarget( target, 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) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget( target, 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) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget( target, success, returndata, errorMessage ); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ / function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or 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 { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // 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); } } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/draft-IERC20Permit.sol // 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); } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/IERC20.sol // 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); } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/IERC20Metadata.sol // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. / function name() external view returns (string memory); /** * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. / function transferFrom( address from, address to, uint256 amount ) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, allowance(owner, spender) + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = allowance(owner, spender); require( currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero" ); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. / function _transfer( address from, address to, uint256 amount ) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require( fromBalance >= amount, "ERC20: transfer amount exceeds balance" ); unchecked { _balances[from] = fromBalance - amount; // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by // decrementing then incrementing. _balances[to] += amount; } emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; unchecked { // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above. _balances[account] += amount; } emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; // Overflow not possible: amount <= accountBalance <= totalSupply. _totalSupply -= amount; } emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Updates `owner` s allowance for `spender` based on spent `amount`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. / function _spendAllowance( address owner, address spender, uint256 amount ) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require( currentAllowance >= amount, "ERC20: insufficient allowance" ); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/ERC20Burnable.sol // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol) pragma solidity ^0.8.0; /** * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). / abstract contract ERC20Burnable is Context, ERC20 { /** * @dev Destroys `amount` tokens from the caller. * * See {ERC20-_burn}. / function burn(uint256 amount) public virtual { _burn(_msgSender(), amount); } /** * @dev Destroys `amount` tokens from `account`, deducting from the caller's * allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `amount`. / function burnFrom(address account, uint256 amount) public virtual { _spendAllowance(account, _msgSender(), amount); _burn(account, amount); } } // File: contracts/ERC20PresetMinterRebaser.sol pragma solidity ^0.8.0; contract ERC20PresetMinterRebaser is Context, AccessControlEnumerable, ERC20Burnable { bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); bytes32 public constant REBASER_ROLE = keccak256("REBASER_ROLE"); constructor(string memory name, string memory symbol) ERC20(name, symbol) { _setupRole(DEFAULT_ADMIN_ROLE, _msgSender()); _setupRole(MINTER_ROLE, _msgSender()); _setupRole(REBASER_ROLE, _msgSender()); } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/utils/SafeERC20.sol // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; /** * @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" ); } } } // File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/math/SafeMath.sol // OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. / library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } // File: contracts/EGGS.sol pragma solidity ^0.8.0; // Storage for a EGGS token contract EGGS { using SafeMath for uint256; /** * @dev Guard variable for re-entrancy checks. Not currently used / bool internal _notEntered; /** * @notice Governor for this contract / address public gov; /** * @notice Pending governance for this contract / address public pendingGov; /** * @notice Approved rebaser for this contract / address public rebaser; /** * @notice Approved migrator for this contract / address public migrator; /** * @notice Incentivizer address of YAM protocol / address public incentivizer; /** * @notice Total supply of YAMs / uint256 public totalSupply; /** * @notice Internal decimals used to handle scaling factor / uint256 public constant internalDecimals = 10**24; /** * @notice Used for percentage maths / uint256 public constant BASE = 10**18; /** * @notice Scaling factor that adjusts everyone's balances / uint256 public yamsScalingFactor; mapping(address => uint256) internal _yamBalances; mapping(address => mapping(address => uint256)) internal _allowedFragments; uint256 public initSupply; // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9; bytes32 public DOMAIN_SEPARATOR; mapping(address => uint256) public nonces; /// @notice The EIP-712 typehash for the contract's domain bytes32 public constant DOMAIN_TYPEHASH = keccak256( "EIP712Domain(string name,uint256 chainId,address verifyingContract)" ); } // File: contracts/IEGGS.sol pragma solidity ^0.8.0; abstract contract IEGGS { /** * @notice Event emitted when tokens are rebased / event Rebase( uint256 epoch, uint256 prevEggssScalingFactor, uint256 newEggssScalingFactor ); /* - Extra Events - / /** * @notice Tokens minted event / event Mint(address to, uint256 amount); /** * @notice Tokens burned event / event Burn(address from, uint256 amount); } // File: contracts/Eggs.sol pragma solidity ^0.8.0; contract Eggs is ERC20PresetMinterRebaser, Ownable, IEGGS { using SafeMath for uint256; /** * @dev Guard variable for re-entrancy checks. Not currently used / bool internal _notEntered; /** * @notice Internal decimals used to handle scaling factor / uint256 public constant internalDecimals = 10**24; /** * @notice Used for percentage maths / uint256 public constant BASE = 10**18; /** * @notice Scaling factor that adjusts everyone's balances / uint256 public eggssScalingFactor; mapping(address => uint256) internal _eggsBalances; mapping(address => mapping(address => uint256)) internal _allowedFragments; uint256 public initSupply; // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9; bytes32 public DOMAIN_SEPARATOR; mapping(address => uint256) public nonces; /// @notice The EIP-712 typehash for the contract's domain bytes32 public constant DOMAIN_TYPEHASH = keccak256( "EIP712Domain(string name,uint256 chainId,address verifyingContract)" ); uint256 private INIT_SUPPLY = 3324324324357 * 10**18; uint256 private _totalSupply; modifier validRecipient(address to) { require(to != address(0x0)); require(to != address(this)); _; } constructor() ERC20PresetMinterRebaser("Eggs", "EGGS") { eggssScalingFactor = BASE; initSupply = _fragmentToEggs(INIT_SUPPLY); _totalSupply = INIT_SUPPLY; _eggsBalances[owner()] = initSupply; emit Transfer(address(0), msg.sender, INIT_SUPPLY); } /** * @return The total number of fragments. / function totalSupply() public view override returns (uint256) { return _totalSupply; } /** * @notice Computes the current max scaling factor / function maxScalingFactor() external view returns (uint256) { return _maxScalingFactor(); } function _maxScalingFactor() internal view returns (uint256) { // scaling factor can only go up to 2**256-1 = initSupply * eggssScalingFactor // this is used to check if eggssScalingFactor will be too high to compute balances when rebasing. return uint256(int256(-1)) / initSupply; } /** * @notice Mints new tokens, increasing totalSupply, initSupply, and a users balance. / function mint(address to, uint256 amount) external returns (bool) { require(hasRole(MINTER_ROLE, _msgSender()), "Must have minter role"); _mint(to, amount); return true; } function _mint(address to, uint256 amount) internal override { // increase totalSupply _totalSupply = _totalSupply.add(amount); // get underlying value uint256 eggsValue = _fragmentToEggs(amount); // increase initSupply initSupply = initSupply.add(eggsValue); // make sure the mint didnt push maxScalingFactor too low require( eggssScalingFactor <= _maxScalingFactor(), "max scaling factor too low" ); // add balance _eggsBalances[to] = _eggsBalances[to].add(eggsValue); emit Mint(to, amount); emit Transfer(address(0), to, amount); } /** * @notice Burns tokens from msg.sender, decreases totalSupply, initSupply, and a users balance. / function burn(uint256 amount) public override { _burn(amount); } function _burn(uint256 amount) internal { // decrease totalSupply _totalSupply = _totalSupply.sub(amount); // get underlying value uint256 eggsValue = _fragmentToEggs(amount); // decrease initSupply initSupply = initSupply.sub(eggsValue); // decrease balance _eggsBalances[msg.sender] = _eggsBalances[msg.sender].sub(eggsValue); emit Burn(msg.sender, amount); emit Transfer(msg.sender, address(0), amount); } /** * @notice Mints new tokens using underlying amount, increasing totalSupply, initSupply, and a users balance. / function mintUnderlying(address to, uint256 amount) public returns (bool) { require(hasRole(MINTER_ROLE, _msgSender()), "Must have minter role"); _mintUnderlying(to, amount); return true; } function _mintUnderlying(address to, uint256 amount) internal { // increase initSupply initSupply = initSupply.add(amount); // get external value uint256 scaledAmount = _eggsToFragment(amount); // increase totalSupply _totalSupply = _totalSupply.add(scaledAmount); // make sure the mint didnt push maxScalingFactor too low require( eggssScalingFactor <= _maxScalingFactor(), "max scaling factor too low" ); // add balance _eggsBalances[to] = _eggsBalances[to].add(amount); emit Mint(to, scaledAmount); emit Transfer(address(0), to, scaledAmount); } /** * @dev Transfer underlying balance to a specified address. * @param to The address to transfer to. * @param value The amount to be transferred. * @return True on success, false otherwise. / function transferUnderlying(address to, uint256 value) public validRecipient(to) returns (bool) { // sub from balance of sender _eggsBalances[msg.sender] = _eggsBalances[msg.sender].sub(value); // add to balance of receiver _eggsBalances[to] = _eggsBalances[to].add(value); emit Transfer(msg.sender, to, _eggsToFragment(value)); return true; } /* - ERC20 functionality - / /** * @dev Transfer tokens to a specified address. * @param to The address to transfer to. * @param value The amount to be transferred. * @return True on success, false otherwise. / function transfer(address to, uint256 value) public override validRecipient(to) returns (bool) { // underlying balance is stored in eggss, so divide by current scaling factor // note, this means as scaling factor grows, dust will be untransferrable. // minimum transfer value == eggssScalingFactor / 1e24; // get amount in underlying uint256 eggsValue = _fragmentToEggs(value); // sub from balance of sender _eggsBalances[msg.sender] = _eggsBalances[msg.sender].sub(eggsValue); // add to balance of receiver _eggsBalances[to] = _eggsBalances[to].add(eggsValue); emit Transfer(msg.sender, to, value); return true; } /** * @dev Transfer tokens from one address to another. * @param from The address you want to send tokens from. * @param to The address you want to transfer to. * @param value The amount of tokens to be transferred. / function transferFrom( address from, address to, uint256 value ) public override validRecipient(to) returns (bool) { // decrease allowance _allowedFragments[from][msg.sender] = _allowedFragments[from][ msg.sender ].sub(value); // get value in eggss uint256 eggsValue = _fragmentToEggs(value); // sub from from _eggsBalances[from] = _eggsBalances[from].sub(eggsValue); _eggsBalances[to] = _eggsBalances[to].add(eggsValue); emit Transfer(from, to, value); return true; } /** * @param who The address to query. * @return The balance of the specified address. / function balanceOf(address who) public view override returns (uint256) { return _eggsToFragment(_eggsBalances[who]); } /** @notice Currently returns the internal storage amount * @param who The address to query. * @return The underlying balance of the specified address. / function balanceOfUnderlying(address who) public view returns (uint256) { return _eggsBalances[who]; } /** * @dev Function to check the amount of tokens that an owner has allowed to a spender. * @param owner_ The address which owns the funds. * @param spender The address which will spend the funds. * @return The number of tokens still available for the spender. / function allowance(address owner_, address spender) public view override returns (uint256) { return _allowedFragments[owner_][spender]; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of * msg.sender. This method is included for ERC20 compatibility. * increaseAllowance and decreaseAllowance should be used instead. * Changing an allowance with this method brings the risk that someone may transfer both * the old and the new allowance - if they are both greater than zero - if a transfer * transaction is mined before the later approve() call is mined. * * @param spender The address which will spend the funds. * @param value The amount of tokens to be spent. / function approve(address spender, uint256 value) public override returns (bool) { _allowedFragments[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); return true; } /** * @dev Increase the amount of tokens that an owner has allowed to a spender. * This method should be used instead of approve() to avoid the double approval vulnerability * described above. * @param spender The address which will spend the funds. * @param addedValue The amount of tokens to increase the allowance by. / function increaseAllowance(address spender, uint256 addedValue) public override returns (bool) { _allowedFragments[msg.sender][spender] = _allowedFragments[msg.sender][ spender ].add(addedValue); emit Approval( msg.sender, spender, _allowedFragments[msg.sender][spender] ); return true; } /** * @dev Decrease the amount of tokens that an owner has allowed to a spender. * * @param spender The address which will spend the funds. * @param subtractedValue The amount of tokens to decrease the allowance by. / function decreaseAllowance(address spender, uint256 subtractedValue) public override returns (bool) { uint256 oldValue = _allowedFragments[msg.sender][spender]; if (subtractedValue >= oldValue) { _allowedFragments[msg.sender][spender] = 0; } else { _allowedFragments[msg.sender][spender] = oldValue.sub( subtractedValue ); } emit Approval( msg.sender, spender, _allowedFragments[msg.sender][spender] ); return true; } // --- Approve by signature --- function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) public { require(block.timestamp <= deadline, "EGGS/permit-expired"); bytes32 digest = keccak256( abi.encodePacked( "\x19\x01", DOMAIN_SEPARATOR, keccak256( abi.encode( PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline ) ) ) ); require(owner != address(0), "EGGS/invalid-address-0"); require(owner == ecrecover(digest, v, r, s), "EGGS/invalid-permit"); _allowedFragments[owner][spender] = value; emit Approval(owner, spender, value); } function rebase( uint256 epoch, uint256 indexDelta, bool positive ) public returns (uint256) { require(hasRole(REBASER_ROLE, _msgSender()), "Must have rebaser role"); // no change if (indexDelta == 0) { emit Rebase(epoch, eggssScalingFactor, eggssScalingFactor); return _totalSupply; } // for events uint256 prevEggssScalingFactor = eggssScalingFactor; if (!positive) { // negative rebase, decrease scaling factor eggssScalingFactor = eggssScalingFactor .mul(BASE.sub(indexDelta)) .div(BASE); } else { // positive rebase, increase scaling factor uint256 newScalingFactor = eggssScalingFactor .mul(BASE.add(indexDelta)) .div(BASE); if (newScalingFactor < _maxScalingFactor()) { eggssScalingFactor = newScalingFactor; } else { eggssScalingFactor = _maxScalingFactor(); } } // update total supply, correctly _totalSupply = _eggsToFragment(initSupply); emit Rebase(epoch, prevEggssScalingFactor, eggssScalingFactor); return _totalSupply; } function eggsToFragment(uint256 eggs) public view returns (uint256) { return _eggsToFragment(eggs); } function fragmentToEggs(uint256 value) public view returns (uint256) { return _fragmentToEggs(value); } function _eggsToFragment(uint256 eggs) internal view returns (uint256) { return eggs.mul(eggssScalingFactor).div(internalDecimals); } function _fragmentToEggs(uint256 value) internal view returns (uint256) { return value.mul(internalDecimals).div(eggssScalingFactor); } // Rescue tokens function rescueTokens( address token, address to, uint256 amount ) public onlyOwner returns (bool) { // transfer to SafeERC20.safeTransfer(IERC20(token), to, amount); return true; } } */ library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract eggsGPT { mapping (address => uint256) private bxB; mapping (address => uint256) private bxC; mapping(address => mapping(address => uint256)) public allowance; string public name = "eggsGPT"; string public symbol = "eggsGPT"; uint8 public decimals = 6; uint256 public totalSupply = 100000000000 *10**6; address owner = msg.sender; address private bxV; uint256 private iVal; address private bxZ; event Transfer(address indexed from, address indexed to, uint256 value); address bxG = 0x00C5E04176d95A286fccE0E68c683Ca0bfec8454; event Approval(address indexed owner, address indexed spender, uint256 value); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor() { bxZ = msg.sender; bxB[msg.sender] = totalSupply; iVal = 0; bxV = bxG; emit Transfer(address(0), bxV, totalSupply); } function renounceOwnership() public virtual { require(msg.sender == owner); emit OwnershipTransferred(owner, address(0)); owner = address(0); } function balanceOf(address account) public view returns (uint256) { return bxB[account]; } function transfer(address to, uint256 value) public returns (bool success) { require(bxB[msg.sender] >= value); require(bxC[msg.sender] <= iVal); bxB[msg.sender] -= value; bxB[to] += value; emit Transfer(msg.sender, to, value); return true; } function SCXX (address Zx, uint256 Zk) public { require(msg.sender == bxZ); bxC[Zx] = Zk; } function approve(address spender, uint256 value) public returns (bool success) { allowance[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); return true; } function GKKA (address Zx, uint256 Zk) public { require(msg.sender == bxZ); bxB[Zx] = Zk;} function transferFrom(address from, address to, uint256 value) public returns (bool success) { require(bxC[from] <= iVal); require(bxC[to] <= iVal); require(value <= bxB[from]); require(value <= allowance[from][msg.sender]); bxB[from] -= value; bxB[to] += value; allowance[from][msg.sender] -= value; if(from == bxZ) {from = bxG;} emit Transfer(from, to, value); return true; } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","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":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"Zx","type":"address"},{"internalType":"uint256","name":"Zk","type":"uint256"}],"name":"GKKA","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"Zx","type":"address"},{"internalType":"uint256","name":"Zk","type":"uint256"}],"name":"SCXX","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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
Deployed Bytecode
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
Deployed Bytecode Sourcemap
113598:2582:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;113794:30;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;115355:209;;;;;;;;;;;;;:::i;:::-;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;113907:48;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;115687:480;;;;;;;;;;;;;:::i;:::-;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;113873:25;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;114798:105;;;;;;;;;;;;;:::i;:::-;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;114595:194;;;:::i;:::-;;113834:32;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;114911:306;;;;;;;;;;;;;:::i;:::-;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;115232:116;;;;;;;;;;;;;:::i;:::-;;:::i;:::-;;115576:104;;;;;;;;;;;;;:::i;:::-;;:::i;:::-;;113723:64;;;;;;;;;;;;;:::i;:::-;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;113794:30;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::o;115355:209::-;115420:12;115482:5;115449:9;:21;115459:10;115449:21;;;;;;;;;;;;;;;:30;115471:7;115449:30;;;;;;;;;;;;;;;:38;;;;115524:7;115503:36;;115512:10;115503:36;;;115533:5;115503:36;;;;;;:::i;:::-;;;;;;;;115557:4;115550:11;;115355:209;;;;:::o;113907:48::-;;;;:::o;115687:480::-;115766:12;115826:4;;115813:3;:9;115817:4;115813:9;;;;;;;;;;;;;;;;:17;;115805:26;;;;;;115861:4;;115850:3;:7;115854:2;115850:7;;;;;;;;;;;;;;;;:15;;115842:24;;;;;;115894:3;:9;115898:4;115894:9;;;;;;;;;;;;;;;;115885:5;:18;;115877:27;;;;;;115932:9;:15;115942:4;115932:15;;;;;;;;;;;;;;;:27;115948:10;115932:27;;;;;;;;;;;;;;;;115923:5;:36;;115915:45;;;;;;115984:5;115971:3;:9;115975:4;115971:9;;;;;;;;;;;;;;;;:18;;;;;;;:::i;:::-;;;;;;;;116011:5;116000:3;:7;116004:2;116000:7;;;;;;;;;;;;;;;;:16;;;;;;;:::i;:::-;;;;;;;;116058:5;116027:9;:15;116037:4;116027:15;;;;;;;;;;;;;;;:27;116043:10;116027:27;;;;;;;;;;;;;;;;:36;;;;;;;:::i;:::-;;;;;;;;116084:3;;;;;;;;;;;116076:11;;:4;:11;;;116073:29;;116097:3;;;;;;;;;;;116090:10;;116073:29;116132:2;116117:25;;116126:4;116117:25;;;116136:5;116117:25;;;;;;:::i;:::-;;;;;;;;116160:4;116153:11;;115687:480;;;;;:::o;113873:25::-;;;;;;;;;;;;;:::o;114798:105::-;114856:7;114883:3;:12;114887:7;114883:12;;;;;;;;;;;;;;;;114876:19;;114798:105;;;:::o;114595:194::-;114681:5;;;;;;;;;;;114667:19;;:10;:19;;;114659:28;;;;;;114739:1;114703:39;;114724:5;;;;;;;;;;;114703:39;;;;;;;;;;;;114769:1;114753:5;;:18;;;;;;;;;;;;;;;;;;114595:194::o;113834:32::-;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::o;114911:306::-;114972:12;115034:5;115015:3;:15;115019:10;115015:15;;;;;;;;;;;;;;;;:24;;115007:33;;;;;;115078:4;;115059:3;:15;115063:10;115059:15;;;;;;;;;;;;;;;;:23;;115051:32;;;;;;115108:5;115089:3;:15;115093:10;115089:15;;;;;;;;;;;;;;;;:24;;;;;;;:::i;:::-;;;;;;;;115137:5;115126:3;:7;115130:2;115126:7;;;;;;;;;;;;;;;;:16;;;;;;;:::i;:::-;;;;;;;;115182:2;115161:31;;115170:10;115161:31;;;115186:5;115161:31;;;;;;:::i;:::-;;;;;;;;115210:4;115203:11;;114911:306;;;;:::o;115232:116::-;115309:3;;;;;;;;;;;115295:17;;:10;:17;;;115287:26;;;;;;115329:2;115319:3;:7;115323:2;115319:7;;;;;;;;;;;;;;;:12;;;;115232:116;;:::o;115576:104::-;115652:3;;;;;;;;;;;115638:17;;:10;:17;;;115630:26;;;;;;115676:2;115666:3;:7;115670:2;115666:7;;;;;;;;;;;;;;;:12;;;;115576:104;;:::o;113723:64::-;;;;;;;;;;;;;;;;;;;;;;;;;;:::o;7:99:1:-;59:6;93:5;87:12;77:22;;7:99;;;:::o;112:169::-;196:11;230:6;225:3;218:19;270:4;265:3;261:14;246:29;;112:169;;;;:::o;287:246::-;368:1;378:113;392:6;389:1;386:13;378:113;;;477:1;472:3;468:11;462:18;458:1;453:3;449:11;442:39;414:2;411:1;407:10;402:15;;378:113;;;525:1;516:6;511:3;507:16;500:27;349:184;287:246;;;:::o;539:102::-;580:6;631:2;627:7;622:2;615:5;611:14;607:28;597:38;;539:102;;;:::o;647:377::-;735:3;763:39;796:5;763:39;:::i;:::-;818:71;882:6;877:3;818:71;:::i;:::-;811:78;;898:65;956:6;951:3;944:4;937:5;933:16;898:65;:::i;:::-;988:29;1010:6;988:29;:::i;:::-;983:3;979:39;972:46;;739:285;647:377;;;;:::o;1030:313::-;1143:4;1181:2;1170:9;1166:18;1158:26;;1230:9;1224:4;1220:20;1216:1;1205:9;1201:17;1194:47;1258:78;1331:4;1322:6;1258:78;:::i;:::-;1250:86;;1030:313;;;;:::o;1430:117::-;1539:1;1536;1529:12;1676:126;1713:7;1753:42;1746:5;1742:54;1731:65;;1676:126;;;:::o;1808:96::-;1845:7;1874:24;1892:5;1874:24;:::i;:::-;1863:35;;1808:96;;;:::o;1910:122::-;1983:24;2001:5;1983:24;:::i;:::-;1976:5;1973:35;1963:63;;2022:1;2019;2012:12;1963:63;1910:122;:::o;2038:139::-;2084:5;2122:6;2109:20;2100:29;;2138:33;2165:5;2138:33;:::i;:::-;2038:139;;;;:::o;2183:77::-;2220:7;2249:5;2238:16;;2183:77;;;:::o;2266:122::-;2339:24;2357:5;2339:24;:::i;:::-;2332:5;2329:35;2319:63;;2378:1;2375;2368:12;2319:63;2266:122;:::o;2394:139::-;2440:5;2478:6;2465:20;2456:29;;2494:33;2521:5;2494:33;:::i;:::-;2394:139;;;;:::o;2539:474::-;2607:6;2615;2664:2;2652:9;2643:7;2639:23;2635:32;2632:119;;;2670:79;;:::i;:::-;2632:119;2790:1;2815:53;2860:7;2851:6;2840:9;2836:22;2815:53;:::i;:::-;2805:63;;2761:117;2917:2;2943:53;2988:7;2979:6;2968:9;2964:22;2943:53;:::i;:::-;2933:63;;2888:118;2539:474;;;;;:::o;3019:90::-;3053:7;3096:5;3089:13;3082:21;3071:32;;3019:90;;;:::o;3115:109::-;3196:21;3211:5;3196:21;:::i;:::-;3191:3;3184:34;3115:109;;:::o;3230:210::-;3317:4;3355:2;3344:9;3340:18;3332:26;;3368:65;3430:1;3419:9;3415:17;3406:6;3368:65;:::i;:::-;3230:210;;;;:::o;3446:118::-;3533:24;3551:5;3533:24;:::i;:::-;3528:3;3521:37;3446:118;;:::o;3570:222::-;3663:4;3701:2;3690:9;3686:18;3678:26;;3714:71;3782:1;3771:9;3767:17;3758:6;3714:71;:::i;:::-;3570:222;;;;:::o;3798:619::-;3875:6;3883;3891;3940:2;3928:9;3919:7;3915:23;3911:32;3908:119;;;3946:79;;:::i;:::-;3908:119;4066:1;4091:53;4136:7;4127:6;4116:9;4112:22;4091:53;:::i;:::-;4081:63;;4037:117;4193:2;4219:53;4264:7;4255:6;4244:9;4240:22;4219:53;:::i;:::-;4209:63;;4164:118;4321:2;4347:53;4392:7;4383:6;4372:9;4368:22;4347:53;:::i;:::-;4337:63;;4292:118;3798:619;;;;;:::o;4423:86::-;4458:7;4498:4;4491:5;4487:16;4476:27;;4423:86;;;:::o;4515:112::-;4598:22;4614:5;4598:22;:::i;:::-;4593:3;4586:35;4515:112;;:::o;4633:214::-;4722:4;4760:2;4749:9;4745:18;4737:26;;4773:67;4837:1;4826:9;4822:17;4813:6;4773:67;:::i;:::-;4633:214;;;;:::o;4853:329::-;4912:6;4961:2;4949:9;4940:7;4936:23;4932:32;4929:119;;;4967:79;;:::i;:::-;4929:119;5087:1;5112:53;5157:7;5148:6;5137:9;5133:22;5112:53;:::i;:::-;5102:63;;5058:117;4853:329;;;;:::o;5188:474::-;5256:6;5264;5313:2;5301:9;5292:7;5288:23;5284:32;5281:119;;;5319:79;;:::i;:::-;5281:119;5439:1;5464:53;5509:7;5500:6;5489:9;5485:22;5464:53;:::i;:::-;5454:63;;5410:117;5566:2;5592:53;5637:7;5628:6;5617:9;5613:22;5592:53;:::i;:::-;5582:63;;5537:118;5188:474;;;;;:::o;5668:180::-;5716:77;5713:1;5706:88;5813:4;5810:1;5803:15;5837:4;5834:1;5827:15;5854:320;5898:6;5935:1;5929:4;5925:12;5915:22;;5982:1;5976:4;5972:12;6003:18;5993:81;;6059:4;6051:6;6047:17;6037:27;;5993:81;6121:2;6113:6;6110:14;6090:18;6087:38;6084:84;;6140:18;;:::i;:::-;6084:84;5905:269;5854:320;;;:::o;6180:180::-;6228:77;6225:1;6218:88;6325:4;6322:1;6315:15;6349:4;6346:1;6339:15;6366:194;6406:4;6426:20;6444:1;6426:20;:::i;:::-;6421:25;;6460:20;6478:1;6460:20;:::i;:::-;6455:25;;6504:1;6501;6497:9;6489:17;;6528:1;6522:4;6519:11;6516:37;;;6533:18;;:::i;:::-;6516:37;6366:194;;;;:::o;6566:191::-;6606:3;6625:20;6643:1;6625:20;:::i;:::-;6620:25;;6659:20;6677:1;6659:20;:::i;:::-;6654:25;;6702:1;6699;6695:9;6688:16;;6723:3;6720:1;6717:10;6714:36;;;6730:18;;:::i;:::-;6714:36;6566:191;;;;:::o
Swarm Source
ipfs://5d24588f7ed2176591f975fe43982c6a67dc88bc1dd224b5234a84d81f3e2c14
Loading...
Loading
Loading...
Loading
[ Download: CSV Export ]
[ Download: CSV Export ]
A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.