{"sources":{"contracts/Wrappers/CeloOFTExtension.sol":{"content":"// SPDX-License-Identifier: Apache 2.0\n\npragma solidity 0.8.4;\n\nimport {TetherTokenOFTExtension} from \"contracts/Wrappers/OFTExtension.sol\";\nimport {TetherTokenCeloExtension, EIP712Upgradeable, ERC20Upgradeable} from \"contracts/Wrappers/CeloExtension.sol\";\n\n/*\n\n Copyright Everdawn Labs 2026\n\n Licensed under the Apache License, Version 2.0\n http://www.apache.org/licenses/LICENSE-2.0\n\n*/\n\n\ncontract CeloOFTExtension is TetherTokenOFTExtension, TetherTokenCeloExtension {\n /**\n * @dev The hash of the name parameter for the EIP712 domain.\n *\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n * are a concern.\n */\n function _EIP712NameHash() internal virtual override(TetherTokenOFTExtension, EIP712Upgradeable) view returns (bytes32) {\n return TetherTokenOFTExtension._EIP712NameHash();\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override(TetherTokenOFTExtension, ERC20Upgradeable) returns (string memory) {\n return TetherTokenOFTExtension.name();\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override(TetherTokenOFTExtension, ERC20Upgradeable) returns (string memory) {\n return TetherTokenOFTExtension.symbol();\n }\n}"},"contracts/Wrappers/OFTExtension.sol":{"content":"// SPDX-License-Identifier: Apache 2.0\n\npragma solidity 0.8.4;\n\nimport \"contracts/Tether/TetherTokenV2.sol\";\nimport {IERC7802, IERC165} from \"contracts/Wrappers/interfaces/IERC7802.sol\";\n\n/*\n\n Copyright USDT0 2025\n\n Author Will Norden\n\n Licensed under the Apache License, Version 2.0\n http://www.apache.org/licenses/LICENSE-2.0\n\n*/\n\n\ncontract TetherTokenOFTExtension is TetherTokenV2, IERC7802 {\n\n event LogSetOFTContract(address indexed oftContract);\n event Burn(address indexed from, uint256 amount);\n event LogUpdateNameAndSymbol(string name, string symbol);\n\n address public oftContract;\n\n string internal _newName;\n string internal _newSymbol;\n\n modifier onlyAuthorizedSender() {\n require(msg.sender == oftContract, \"Only OFT can call\");\n _;\n }\n\n function crosschainMint(address _destination, uint256 _amount) public override onlyAuthorizedSender {\n _mint(_destination, _amount);\n emit Mint(_destination, _amount);\n emit CrosschainMint(_destination, _amount, msg.sender);\n }\n\n function crosschainBurn(address _from, uint256 _amount) public override onlyAuthorizedSender {\n _burn(_from, _amount);\n emit Burn(_from, _amount);\n emit CrosschainBurn(_from, _amount, msg.sender);\n }\n\n function setOFTContract(address _oftContract) external onlyOwner {\n oftContract = _oftContract;\n emit LogSetOFTContract(_oftContract);\n }\n\n /**\n * @dev The hash of the name parameter for the EIP712 domain.\n *\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n * are a concern.\n */\n function _EIP712NameHash() internal virtual override view returns (bytes32) {\n return keccak256(bytes(name()));\n }\n\n function updateNameAndSymbol(string memory _name, string memory _symbol) public onlyOwner {\n _newName = _name;\n _newSymbol = _symbol;\n emit LogUpdateNameAndSymbol(_name, _symbol);\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override returns (string memory) {\n return bytes(_newName).length == 0 ? super.name() : _newName;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override returns (string memory) {\n return bytes(_newSymbol).length == 0 ? super.symbol() : _newSymbol;\n }\n\n function supportsInterface(bytes4 interfaceId) external pure override returns (bool) {\n return interfaceId == type(IERC7802).interfaceId || interfaceId == type(IERC165).interfaceId;\n }\n\n uint256[47] private __gap;\n}\n"},"contracts/Wrappers/CeloExtension.sol":{"content":"// SPDX-License-Identifier: Apache 2.0\n\npragma solidity 0.8.4;\n\nimport \"../Tether/TetherTokenV2.sol\";\n\n/*\n\n Copyright Tether.to 2024\n\n Author Will Harborne, Will Norden\n\n Licensed under the Apache License, Version 2.0\n http://www.apache.org/licenses/LICENSE-2.0\n\n*/\n\n\ncontract TetherTokenCeloExtension is TetherTokenV2 {\n\n event LogSetFeeCurrencyWrapper(address indexed feeCurrencyWrapper);\n\n address constant private GAS_FEE_ADDRESS = 0x000000000000000000000000000000000Ce106A5;\n\n address public feeCurrencyWrapper;\n\n modifier onlyFeeWrapper() {\n require(msg.sender == address(0) || msg.sender == feeCurrencyWrapper, \"Only VM can call\");\n _;\n }\n\n /**\n * @notice Reserve balance for making payments for gas in this currency.\n * @param from The account to reserve balance from\n * @param value The amount of balance to reserve\n * @dev Note that this function is called by the protocol when paying for tx fees in this\n * currency. After the tx is executed, gas is refunded to the sender and credited to the\n * various tx fee recipients via a call to `creditGasFees`.\n */\n function debitGasFees(address from, uint256 value) external onlyFeeWrapper {\n _transfer(from, GAS_FEE_ADDRESS, value);\n }\n\n /**\n * @notice Alternative function to credit balance after making payments\n * for gas in this currency.\n * @param refundRecipient The recipient of the refund.\n * @param tipRecipient The recipient of the tip.\n * @param baseFeeRecipient The recipient of the base fee.\n * @param refundAmount amount to be refunded by the VM\n * @param tipAmount Coinbase fee\n * @param baseFeeAmount Community fund fee\n * @dev Note that this function is called by the protocol when paying for tx fees in this\n * currency. Before the tx is executed, gas is debited from the sender via a call to\n * `debitGasFees`.\n */\n function creditGasFees(\n address refundRecipient,\n address tipRecipient,\n address , // gateWayFeeRecipient is not used anymore\n address baseFeeRecipient,\n uint256 refundAmount,\n uint256 tipAmount,\n uint256 ,\n uint256 baseFeeAmount\n ) external onlyFeeWrapper {\n\n if (tipRecipient != address(0)) {\n _transfer(GAS_FEE_ADDRESS, tipRecipient, tipAmount);\n }\n\n if (baseFeeRecipient != address(0)) {\n _transfer(GAS_FEE_ADDRESS, baseFeeRecipient, baseFeeAmount);\n }\n\n if (refundAmount > 0) {\n _transfer(GAS_FEE_ADDRESS, refundRecipient, refundAmount);\n }\n }\n\n function setFeeCurrencyWrapper(address _feeCurrencyWrapper) external onlyOwner {\n feeCurrencyWrapper = _feeCurrencyWrapper;\n emit LogSetFeeCurrencyWrapper(_feeCurrencyWrapper);\n }\n\n}\n"},"contracts/Tether/TetherTokenV2.sol":{"content":"// SPDX-License-Identifier: Apache 2.0\nimport \"./TetherToken.sol\";\nimport \"./EIP3009.sol\";\nimport \"./util/SignatureChecker.sol\";\npragma solidity 0.8.4;\n\ncontract TetherTokenV2 is TetherToken, EIP3009 {\n bytes32 internal constant _PERMIT_TYPEHASH =\n keccak256(\n \"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\"\n );\n\n constructor () initializer {}\n\n function domainSeparator()\n internal\n view\n virtual\n override\n returns (bytes32)\n {\n return _domainSeparatorV4();\n }\n\n /**\n * The following applies to the following function and comments to that function:\n * \n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n function _permit(\n address owner_,\n address spender,\n uint256 value,\n uint256 deadline,\n bytes memory signature\n ) internal {\n require(block.timestamp <= deadline, \"ERC20Permit: expired deadline\");\n\n bytes32 structHash = keccak256(\n abi.encode(\n _PERMIT_TYPEHASH,\n owner_,\n spender,\n value,\n _useNonce(owner_),\n deadline\n )\n );\n\n bytes32 hash = _hashTypedDataV4(structHash);\n\n require(\n SignatureChecker.isValidSignatureNow(owner_, hash, signature),\n \"EIP2612: invalid signature\"\n );\n\n _approve(owner_, spender, value);\n }\n\n /**\n * @notice Update allowance with a signed permit\n * @param owner_ Token owner's address\n * @param spender Spender's address\n * @param value Amount of allowance\n * @param deadline The time at which the signature expires (unix time)\n * @param v signature component v\n * @param r signature component r\n * @param s signature component s\n */\n function permit(\n address owner_,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) public virtual override {\n _permit(owner_, spender, value, deadline, abi.encodePacked(r, s, v));\n }\n\n /**\n * The following applies to the following function and comments to that function:\n * \n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\n /**\n * @notice Update allowance with a signed permit\n * @dev EOA wallet signatures should be packed in the order of r, s, v.\n * @param owner_ Token owner's address (Authorizer)\n * @param spender Spender's address\n * @param value Amount of allowance\n * @param deadline The time at which the signature expires (unix time), or max uint256 value to signal no expiration\n * @param signature Signature bytes signed by an EOA wallet or a contract wallet\n */\n function permit(\n address owner_,\n address spender,\n uint256 value,\n uint256 deadline,\n bytes memory signature\n ) external {\n _permit(owner_, spender, value, deadline, signature);\n }\n\n /**\n * The following applies to the following function and comments to that function:\n * \n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\n /**\n * @notice Execute a transfer with a signed authorization\n * @param from Payer's address (Authorizer)\n * @param to Payee's address\n * @param value Amount to be transferred\n * @param validAfter The time after which this is valid (unix time)\n * @param validBefore The time before which this is valid (unix time)\n * @param nonce Unique nonce\n * @param v v of the signature\n * @param r r of the signature\n * @param s s of the signature\n */\n function transferWithAuthorization(\n address from,\n address to,\n uint256 value,\n uint256 validAfter,\n uint256 validBefore,\n bytes32 nonce,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) public onlyNotBlocked {\n _transferWithAuthorizationValidityCheck(\n from,\n to,\n value,\n validAfter,\n validBefore,\n nonce,\n abi.encodePacked(r, s, v)\n );\n _transfer(from, to, value);\n }\n\n /**\n * The following applies to the following function and comments to that function:\n * \n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\n /**\n * @notice Execute a transfer with a signed authorization\n * @dev EOA wallet signatures should be packed in the order of r, s, v.\n * @param from Payer's address (Authorizer)\n * @param to Payee's address\n * @param value Amount to be transferred\n * @param validAfter The time after which this is valid (unix time)\n * @param validBefore The time before which this is valid (unix time)\n * @param nonce Unique nonce\n * @param signature Signature bytes signed by an EOA wallet or a contract wallet\n */\n function transferWithAuthorization(\n address from,\n address to,\n uint256 value,\n uint256 validAfter,\n uint256 validBefore,\n bytes32 nonce,\n bytes memory signature\n ) external onlyNotBlocked {\n _transferWithAuthorizationValidityCheck(\n from,\n to,\n value,\n validAfter,\n validBefore,\n nonce,\n signature\n );\n _transfer(from, to, value);\n }\n\n /**\n * The following applies to the following function and comments to that function:\n * \n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\n /**\n * @notice Receive a transfer with a signed authorization from the payer\n * @dev This has an additional check to ensure that the payee's address\n * matches the caller of this function to prevent front-running attacks.\n * @param from Payer's address (Authorizer)\n * @param to Payee's address\n * @param value Amount to be transferred\n * @param validAfter The time after which this is valid (unix time)\n * @param validBefore The time before which this is valid (unix time)\n * @param nonce Unique nonce\n * @param v v of the signature\n * @param r r of the signature\n * @param s s of the signature\n */\n function receiveWithAuthorization(\n address from,\n address to,\n uint256 value,\n uint256 validAfter,\n uint256 validBefore,\n bytes32 nonce,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) public onlyNotBlocked {\n _receiveWithAuthorizationValidityCheck(\n from,\n to,\n value,\n validAfter,\n validBefore,\n nonce,\n abi.encodePacked(r, s, v)\n );\n _transfer(from, to, value);\n }\n\n /**\n * The following applies to the following function and comments to that function:\n * \n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\n /**\n * @notice Receive a transfer with a signed authorization from the payer\n * @dev This has an additional check to ensure that the payee's address\n * matches the caller of this function to prevent front-running attacks.\n * EOA wallet signatures should be packed in the order of r, s, v.\n * @param from Payer's address (Authorizer)\n * @param to Payee's address\n * @param value Amount to be transferred\n * @param validAfter The time after which this is valid (unix time)\n * @param validBefore The time before which this is valid (unix time)\n * @param nonce Unique nonce\n * @param signature Signature bytes signed by an EOA wallet or a contract wallet\n */\n function receiveWithAuthorization(\n address from,\n address to,\n uint256 value,\n uint256 validAfter,\n uint256 validBefore,\n bytes32 nonce,\n bytes memory signature\n ) external onlyNotBlocked {\n _receiveWithAuthorizationValidityCheck(\n from,\n to,\n value,\n validAfter,\n validBefore,\n nonce,\n signature\n );\n _transfer(from, to, value);\n }\n\n uint256[48] private __gap;\n}"},"contracts/Wrappers/interfaces/IERC7802.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\nimport \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\n\n/// @title IERC7802\n/// @notice Defines the interface for crosschain ERC20 transfers.\ninterface IERC7802 is IERC165 {\n /// @notice Emitted when a crosschain transfer mints tokens.\n /// @param to Address of the account tokens are being minted for.\n /// @param amount Amount of tokens minted.\n /// @param sender Address of the caller (msg.sender) who invoked crosschainMint.\n event CrosschainMint(address indexed to, uint256 amount, address indexed sender);\n /// @notice Emitted when a crosschain transfer burns tokens.\n /// @param from Address of the account tokens are being burned from.\n /// @param amount Amount of tokens burned.\n /// @param sender Address of the caller (msg.sender) who invoked crosschainBurn.\n event CrosschainBurn(address indexed from, uint256 amount, address indexed sender);\n /// @notice Mint tokens through a crosschain transfer.\n /// @param _to Address to mint tokens to.\n /// @param _amount Amount of tokens to mint.\n function crosschainMint(address _to, uint256 _amount) external;\n /// @notice Burn tokens through a crosschain transfer.\n /// @param _from Address to burn tokens from.\n /// @param _amount Amount of tokens to burn.\n function crosschainBurn(address _from, uint256 _amount) external;\n}\n"},"contracts/Tether/TetherToken.sol":{"content":"// SPDX-License-Identifier: Apache 2.0\n\npragma solidity 0.8.4;\n\nimport \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-ERC20PermitUpgradeable.sol\";\nimport \"./WithBlockedList.sol\";\n\n/*\n\n Copyright Tether.to 2024\n\n Version 2.0(a)\n\n Licensed under the Apache License, Version 2.0\n http://www.apache.org/licenses/LICENSE-2.0\n\n*/\n\ncontract TetherToken is\n Initializable,\n ERC20PermitUpgradeable,\n OwnableUpgradeable,\n WithBlockedList\n{\n // Unused variable by the base token, retained to preserve storage slots across upgrades\n mapping(address => bool) public isTrusted;\n\n uint8 private tetherDecimals;\n\n function initialize(\n string memory _name,\n string memory _symbol,\n uint8 _decimals\n ) public initializer {\n tetherDecimals = _decimals;\n __Ownable_init();\n __ERC20_init(_name, _symbol);\n __ERC20Permit_init(_name);\n }\n\n function decimals() public view virtual override returns (uint8) {\n return tetherDecimals;\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256\n ) internal virtual override {\n require(!isBlocked[from] || msg.sender == owner(), \"TetherToken: from is blocked\");\n require( \n to != address(this), \n \"TetherToken: transfer to the contract address\" \n ); \n }\n\n function transferFrom(\n address _sender,\n address _recipient,\n uint256 _amount\n ) public virtual override onlyNotBlocked returns (bool) {\n return super.transferFrom(_sender, _recipient, _amount);\n }\n\n function multiTransfer (\n address[] calldata _recipients,\n uint256[] calldata _values\n ) external {\n require(\n _recipients.length == _values.length,\n \"TetherToken: multiTransfer mismatch\"\n );\n for (uint256 i = 0; i < _recipients.length; i++) {\n transfer(_recipients[i], _values[i]);\n }\n }\n\n function mint(address _destination, uint256 _amount) public virtual onlyOwner {\n _mint(_destination, _amount);\n emit Mint(_destination, _amount);\n }\n\n function redeem(uint256 _amount) public virtual onlyOwner {\n _burn(owner(), _amount);\n emit Redeem(_amount);\n }\n\n function destroyBlockedFunds(address _blockedUser) public onlyOwner {\n require(isBlocked[_blockedUser], \"TetherToken: user is not blocked\");\n uint256 blockedFunds = balanceOf(_blockedUser);\n _burn(_blockedUser, blockedFunds);\n emit DestroyedBlockedFunds(_blockedUser, blockedFunds);\n }\n\n event Mint(address indexed _destination, uint256 _amount);\n event Redeem(uint256 _amount);\n event DestroyedBlockedFunds(address indexed _blockedUser, uint256 _balance);\n}\n"},"contracts/Tether/EIP3009.sol":{"content":"/**\n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\npragma solidity >=0.6.12 <0.9.0;\n\nimport { SignatureChecker } from \"./util/SignatureChecker.sol\";\nimport { MessageHashUtils } from \"./util/MessageHashUtils.sol\";\n\n/**\n * @title EIP-3009\n * @notice Provide internal implementation for gas-abstracted transfers\n * @dev Contracts that inherit from this must wrap these with publicly\n * accessible functions, optionally adding modifiers where necessary\n */\nabstract contract EIP3009 {\n bytes32 public constant TRANSFER_WITH_AUTHORIZATION_TYPEHASH = keccak256(\"TransferWithAuthorization(address from,address to,uint256 value,uint256 validAfter,uint256 validBefore,bytes32 nonce)\");\n\n bytes32 public constant RECEIVE_WITH_AUTHORIZATION_TYPEHASH = keccak256(\"ReceiveWithAuthorization(address from,address to,uint256 value,uint256 validAfter,uint256 validBefore,bytes32 nonce)\");\n\n bytes32 public constant CANCEL_AUTHORIZATION_TYPEHASH = keccak256(\"CancelAuthorization(address authorizer,bytes32 nonce)\");\n\n /**\n * @dev authorizer address => nonce => bool (true if nonce is used)\n */\n mapping(address => mapping(bytes32 => bool)) private _authorizationStates;\n\n event AuthorizationUsed(address indexed authorizer, bytes32 indexed nonce);\n event AuthorizationCanceled(\n address indexed authorizer,\n bytes32 indexed nonce\n );\n\n function domainSeparator() internal virtual view returns (bytes32);\n\n /**\n * @notice Returns the state of an authorization\n * @dev Nonces are randomly generated 32-byte data unique to the\n * authorizer's address\n * @param authorizer Authorizer's address\n * @param nonce Nonce of the authorization\n * @return True if the nonce is used\n */\n function authorizationState(address authorizer, bytes32 nonce)\n external\n view\n returns (bool)\n {\n return _authorizationStates[authorizer][nonce];\n }\n\n /**\n * @notice Execute a transfer with a signed authorization\n * @param from Payer's address (Authorizer)\n * @param to Payee's address\n * @param value Amount to be transferred\n * @param validAfter The time after which this is valid (unix time)\n * @param validBefore The time before which this is valid (unix time)\n * @param nonce Unique nonce\n * @param signature signature in bytes\n */\n function _transferWithAuthorizationValidityCheck(\n address from,\n address to,\n uint256 value,\n uint256 validAfter,\n uint256 validBefore,\n bytes32 nonce,\n bytes memory signature\n ) internal {\n _requireValidAuthorization(from, nonce, validAfter, validBefore);\n _requireValidSignature(\n from,\n keccak256(\n abi.encode(\n TRANSFER_WITH_AUTHORIZATION_TYPEHASH,\n from,\n to,\n value,\n validAfter,\n validBefore,\n nonce\n )\n ),\n signature\n );\n\n _markAuthorizationAsUsed(from, nonce);\n }\n\n /**\n * @notice Receive a transfer with a signed authorization from the payer\n * @dev This has an additional check to ensure that the payee's address\n * matches the caller of this function to prevent front-running attacks.\n * @param from Payer's address (Authorizer)\n * @param to Payee's address\n * @param value Amount to be transferred\n * @param validAfter The time after which this is valid (unix time)\n * @param validBefore The time before which this is valid (unix time)\n * @param nonce Unique nonce\n * @param signature signature in bytes\n */\n function _receiveWithAuthorizationValidityCheck(\n address from,\n address to,\n uint256 value,\n uint256 validAfter,\n uint256 validBefore,\n bytes32 nonce,\n bytes memory signature\n ) internal {\n require(to == msg.sender, \"TetherToken: to != msg.sender\");\n _requireValidAuthorization(from, nonce, validAfter, validBefore);\n _requireValidSignature(\n from,\n keccak256(\n abi.encode(\n RECEIVE_WITH_AUTHORIZATION_TYPEHASH,\n from,\n to,\n value,\n validAfter,\n validBefore,\n nonce\n )\n ),\n signature\n );\n\n _markAuthorizationAsUsed(from, nonce);\n }\n\n function _cancelAuthorization(\n address authorizer,\n bytes32 nonce,\n bytes memory signature\n ) internal {\n _requireUnusedAuthorization(authorizer, nonce);\n _requireValidSignature(\n authorizer,\n keccak256(\n abi.encode(CANCEL_AUTHORIZATION_TYPEHASH, authorizer, nonce)\n ),\n signature\n );\n\n _authorizationStates[authorizer][nonce] = true;\n emit AuthorizationCanceled(authorizer, nonce);\n }\n\n /**\n * @notice Attempt to cancel an authorization\n * @param authorizer Authorizer's address\n * @param nonce Nonce of the authorization\n * @param v v of the signature\n * @param r r of the signature\n * @param s s of the signature\n */\n function cancelAuthorization(\n address authorizer,\n bytes32 nonce,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) public {\n _cancelAuthorization(authorizer, nonce, abi.encodePacked(r,s,v));\n }\n\n /**\n * @notice Attempt to cancel an authorization\n * @dev Works only if the authorization is not yet used.\n * EOA wallet signatures should be packed in the order of r, s, v.\n * @param authorizer Authorizer's address\n * @param nonce Nonce of the authorization\n * @param signature Signature bytes signed by an EOA wallet or a contract wallet\n */\n function cancelAuthorization(\n address authorizer,\n bytes32 nonce,\n bytes memory signature\n ) external {\n _cancelAuthorization(authorizer, nonce, signature);\n }\n\n /**\n * @notice Validates that signature against input data struct\n * @param signer Signer's address\n * @param dataHash Hash of encoded data struct\n * @param signature signature in bytes\n */\n function _requireValidSignature(\n address signer,\n bytes32 dataHash,\n bytes memory signature\n ) private view {\n require(\n SignatureChecker.isValidSignatureNow(\n signer,\n MessageHashUtils.toTypedDataHash(domainSeparator(), dataHash),\n signature\n ),\n \"TetherToken: invalid signature\"\n );\n }\n\n /**\n * @notice Check that an authorization is unused\n * @param authorizer Authorizer's address\n * @param nonce Nonce of the authorization\n */\n function _requireUnusedAuthorization(address authorizer, bytes32 nonce)\n private\n view\n {\n require(\n !_authorizationStates[authorizer][nonce],\n \"TetherToken: auth invalid\"\n );\n }\n\n /**\n * @notice Check that authorization is valid\n * @param authorizer Authorizer's address\n * @param nonce Nonce of the authorization\n * @param validAfter The time after which this is valid (unix time)\n * @param validBefore The time before which this is valid (unix time)\n */\n function _requireValidAuthorization(\n address authorizer,\n bytes32 nonce,\n uint256 validAfter,\n uint256 validBefore\n ) private view {\n require(\n block.timestamp > validAfter,\n \"TetherToken: auth early\"\n );\n require(block.timestamp < validBefore, \"TetherToken: auth expired\");\n _requireUnusedAuthorization(authorizer, nonce);\n }\n\n /**\n * @notice Mark an authorization as used\n * @param authorizer Authorizer's address\n * @param nonce Nonce of the authorization\n */\n function _markAuthorizationAsUsed(address authorizer, bytes32 nonce)\n private\n {\n _authorizationStates[authorizer][nonce] = true;\n emit AuthorizationUsed(authorizer, nonce);\n }\n\n uint256[49] private __gap;\n}"},"contracts/Tether/util/SignatureChecker.sol":{"content":"/**\n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\npragma solidity >=0.6.12 <0.9.0;\n\nimport { ECRecover } from \"./ECRecover.sol\";\nimport { IERC1271 } from \"../interfaces/IERC1271.sol\";\n\n/**\n * @dev Signature verification helper that can be used instead of `ECRecover.recover` to seamlessly support both ECDSA\n * signatures from externally owned accounts (EOAs) as well as ERC1271 signatures from smart contract wallets.\n *\n * Adapted from https://github.com/OpenZeppelin/openzeppelin-contracts/blob/21bb89ef5bfc789b9333eb05e3ba2b7b284ac77c/contracts/utils/cryptography/SignatureChecker.sol\n */\nlibrary SignatureChecker {\n /**\n * @dev Checks if a signature is valid for a given signer and data hash. If the signer is a smart contract, the\n * signature is validated against that smart contract using ERC1271, otherwise it's validated using `ECRecover.recover`.\n * @param signer Address of the claimed signer\n * @param digest Keccak-256 hash digest of the signed message\n * @param signature signature byte array associated with hash\n */\n function isValidSignatureNow(\n address signer,\n bytes32 digest,\n bytes memory signature\n ) internal view returns (bool) {\n if (!isContract(signer)) {\n return ECRecover.recover(digest, signature) == signer;\n }\n return isValidERC1271SignatureNow(signer, digest, signature);\n }\n\n /**\n * @dev Checks if a signature is valid for a given signer and data hash. The signature is validated\n * against the signer smart contract using ERC1271.\n * @param signer Address of the claimed signer\n * @param digest Keccak-256 hash digest of the signed message\n * @param signature Signature byte array associated with hash\n *\n * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus\n * change through time. It could return true at block N and false at block N+1 (or the opposite).\n */\n function isValidERC1271SignatureNow(\n address signer,\n bytes32 digest,\n bytes memory signature\n ) internal view returns (bool) {\n (bool success, bytes memory result) = signer.staticcall(\n abi.encodeWithSelector(\n IERC1271.isValidSignature.selector,\n digest,\n signature\n )\n );\n return (success &&\n result.length >= 32 &&\n abi.decode(result, (bytes32)) ==\n bytes32(IERC1271.isValidSignature.selector));\n }\n\n /**\n * @dev Checks if the input address is a smart contract.\n */\n function isContract(address addr) internal view returns (bool) {\n uint256 size;\n assembly {\n size := extcodesize(addr)\n }\n return size > 0;\n }\n}"},"node_modules/@openzeppelin/contracts/utils/introspection/IERC165.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n function __Ownable_init() internal initializer {\n __Context_init_unchained();\n __Ownable_init_unchained();\n }\n\n function __Ownable_init_unchained() internal initializer {\n _setOwner(_msgSender());\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n _;\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _setOwner(newOwner);\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n uint256[49] private __gap;\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20Upgradeable.sol\";\nimport \"./extensions/IERC20MetadataUpgradeable.sol\";\nimport \"../../utils/ContextUpgradeable.sol\";\nimport \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin guidelines: functions revert instead\n * of returning `false` on failure. This behavior is nonetheless conventional\n * and does not conflict with the expectations of ERC20 applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * The default value of {decimals} is 18. To select a different value for\n * {decimals} you should overload it.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n function __ERC20_init(string memory name_, string memory symbol_) internal initializer {\n __Context_init_unchained();\n __ERC20_init_unchained(name_, symbol_);\n }\n\n function __ERC20_init_unchained(string memory name_, string memory symbol_) internal initializer {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the value {ERC20} uses, unless this function is\n * overridden;\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `recipient` cannot be the zero address.\n * - the caller must have a balance of at least `amount`.\n */\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * Requirements:\n *\n * - `sender` and `recipient` cannot be the zero address.\n * - `sender` must have a balance of at least `amount`.\n * - the caller must have allowance for ``sender``'s tokens of at least\n * `amount`.\n */\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n require(currentAllowance >= amount, \"ERC20: transfer amount exceeds allowance\");\n unchecked {\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n\n return true;\n }\n\n /**\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);\n return true;\n }\n\n /**\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `spender` must have allowance for the caller of at least\n * `subtractedValue`.\n */\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n /**\n * @dev Moves `amount` of tokens from `sender` to `recipient`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * Requirements:\n *\n * - `sender` cannot be the zero address.\n * - `recipient` cannot be the zero address.\n * - `sender` must have a balance of at least `amount`.\n */\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n require(senderBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n\n _afterTokenTransfer(sender, recipient, amount);\n }\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n _balances[account] += amount;\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, reducing the\n * total supply.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n * - `account` must have at least `amount` tokens.\n */\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n */\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n /**\n * @dev Hook that is called before any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * has been transferred to `to`.\n * - when `from` is zero, `amount` tokens have been minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n uint256[45] private __gap;\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-ERC20PermitUpgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nimport \"./draft-IERC20PermitUpgradeable.sol\";\nimport \"../ERC20Upgradeable.sol\";\nimport \"../../../utils/cryptography/draft-EIP712Upgradeable.sol\";\nimport \"../../../utils/cryptography/ECDSAUpgradeable.sol\";\nimport \"../../../utils/CountersUpgradeable.sol\";\nimport \"../../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n *\n * _Available since v3.4._\n */\nabstract contract ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20PermitUpgradeable, EIP712Upgradeable {\n using CountersUpgradeable for CountersUpgradeable.Counter;\n\n mapping(address => CountersUpgradeable.Counter) private _nonces;\n\n // solhint-disable-next-line var-name-mixedcase\n bytes32 private _PERMIT_TYPEHASH;\n\n /**\n * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `\"1\"`.\n *\n * It's a good idea to use the same `name` that is defined as the ERC20 token name.\n */\n function __ERC20Permit_init(string memory name) internal initializer {\n __Context_init_unchained();\n __EIP712_init_unchained(name, \"1\");\n __ERC20Permit_init_unchained(name);\n }\n\n function __ERC20Permit_init_unchained(string memory name) internal initializer {\n _PERMIT_TYPEHASH = keccak256(\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\");}\n\n /**\n * @dev See {IERC20Permit-permit}.\n */\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) public virtual override {\n require(block.timestamp <= deadline, \"ERC20Permit: expired deadline\");\n\n bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));\n\n bytes32 hash = _hashTypedDataV4(structHash);\n\n address signer = ECDSAUpgradeable.recover(hash, v, r, s);\n require(signer == owner, \"ERC20Permit: invalid signature\");\n\n _approve(owner, spender, value);\n }\n\n /**\n * @dev See {IERC20Permit-nonces}.\n */\n function nonces(address owner) public view virtual override returns (uint256) {\n return _nonces[owner].current();\n }\n\n /**\n * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.\n */\n // solhint-disable-next-line func-name-mixedcase\n function DOMAIN_SEPARATOR() external view override returns (bytes32) {\n return _domainSeparatorV4();\n }\n\n /**\n * @dev \"Consume a nonce\": return the current value and increment.\n *\n * _Available since v4.1._\n */\n function _useNonce(address owner) internal virtual returns (uint256 current) {\n CountersUpgradeable.Counter storage nonce = _nonces[owner];\n current = nonce.current();\n nonce.increment();\n }\n uint256[49] private __gap;\n}\n"},"contracts/Tether/WithBlockedList.sol":{"content":"// SPDX-License-Identifier: Apache 2.0\n\npragma solidity 0.8.4;\n\nimport \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\n\n/*\n\n Copyright Tether.to 2020\n\n Author Will Harborne\n\n Licensed under the Apache License, Version 2.0\n http://www.apache.org/licenses/LICENSE-2.0\n\n*/\n\n\ncontract WithBlockedList is OwnableUpgradeable {\n\n /**\n * @dev Reverts if called by a blocked account\n */\n modifier onlyNotBlocked() {\n require(!isBlocked[_msgSender()], \"Blocked: msg.sender is blocked\");\n _;\n }\n\n mapping (address => bool) public isBlocked;\n\n function addToBlockedList (address _user) public onlyOwner {\n isBlocked[_user] = true;\n emit BlockPlaced(_user);\n }\n\n function removeFromBlockedList (address _user) public onlyOwner {\n isBlocked[_user] = false;\n emit BlockReleased(_user);\n }\n\n event BlockPlaced(address indexed _user);\n\n event BlockReleased(address indexed _user);\n \n}\n"},"contracts/Tether/util/MessageHashUtils.sol":{"content":"/**\n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\npragma solidity >=0.6.12 <0.9.0;\n\n/**\n * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing.\n *\n * The library provides methods for generating a hash of a message that conforms to the\n * https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712]\n * specifications.\n */\nlibrary MessageHashUtils {\n /**\n * @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`).\n * Adapted from https://github.com/OpenZeppelin/openzeppelin-contracts/blob/21bb89ef5bfc789b9333eb05e3ba2b7b284ac77c/contracts/utils/cryptography/MessageHashUtils.sol\n *\n * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with\n * `\\x19\\x01` and hashing the result. It corresponds to the hash signed by the\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712.\n *\n * @param domainSeparator Domain separator\n * @param structHash Hashed EIP-712 data struct\n * @return digest The keccak256 digest of an EIP-712 typed data\n */\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash)\n internal\n pure\n returns (bytes32 digest)\n {\n /// @solidity memory-safe-assembly\n assembly {\n let ptr := mload(0x40)\n mstore(ptr, \"\\x19\\x01\")\n mstore(add(ptr, 0x02), domainSeparator)\n mstore(add(ptr, 0x22), structHash)\n digest := keccak256(ptr, 0x42)\n }\n }\n}"},"contracts/Tether/util/ECRecover.sol":{"content":"/**\n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\npragma solidity >=0.6.12 <0.9.0;\n\n/**\n * @title ECRecover\n * @notice A library that provides a safe ECDSA recovery function\n */\nlibrary ECRecover {\n /**\n * @notice Recover signer's address from a signed message\n * @dev Adapted from: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/65e4ffde586ec89af3b7e9140bdc9235d1254853/contracts/cryptography/ECDSA.sol\n * Modifications: Accept v, r, and s as separate arguments\n * @param digest Keccak-256 hash digest of the signed message\n * @param v v of the signature\n * @param r r of the signature\n * @param s s of the signature\n * @return Signer address\n */\n function recover(\n bytes32 digest,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n //\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n // these malleable signatures as well.\n if (\n uint256(s) >\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0\n ) {\n revert(\"ECRecover: invalid signature 's' value\");\n }\n\n if (v != 27 && v != 28) {\n revert(\"ECRecover: invalid signature 'v' value\");\n }\n\n // If the signature is valid (and not malleable), return the signer address\n address signer = ecrecover(digest, v, r, s);\n require(signer != address(0), \"ECRecover: invalid signature\");\n\n return signer;\n }\n\n /**\n * @notice Recover signer's address from a signed message\n * @dev Adapted from: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/0053ee040a7ff1dbc39691c9e67a69f564930a88/contracts/utils/cryptography/ECDSA.sol\n * @param digest Keccak-256 hash digest of the signed message\n * @param signature Signature byte array associated with hash\n * @return Signer address\n */\n function recover(bytes32 digest, bytes memory signature)\n internal\n pure\n returns (address)\n {\n require(signature.length == 65, \"ECRecover: invalid signature length\");\n\n bytes32 r;\n bytes32 s;\n uint8 v;\n\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n /// @solidity memory-safe-assembly\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n return recover(digest, v, r, s);\n }\n}"},"contracts/Tether/interfaces/IERC1271.sol":{"content":"/**\n * SPDX-License-Identifier: Apache-2.0\n *\n * Copyright (c) 2023, Circle Internet Financial, LLC.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n * \n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * \n * ---------------------------------------------------------------------\n * \n * Adapted by Tether.to 2024 for greater flexibility and reusability\n */\n\npragma solidity >=0.6.12 <0.9.0;\n\n/**\n * @dev Interface of the ERC1271 standard signature validation method for\n * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].\n */\ninterface IERC1271 {\n /**\n * @dev Should return whether the signature provided is valid for the provided data\n * @param hash Hash of the data to be signed\n * @param signature Signature byte array associated with the provided data hash\n * @return magicValue bytes4 magic value 0x1626ba7e when function passes\n */\n function isValidSignature(bytes32 hash, bytes memory signature)\n external\n view\n returns (bytes4 magicValue);\n}"},"node_modules/@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\nimport \"../proxy/utils/Initializable.sol\";\n\n/*\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract ContextUpgradeable is Initializable {\n function __Context_init() internal initializer {\n __Context_init_unchained();\n }\n\n function __Context_init_unchained() internal initializer {\n }\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n uint256[50] private __gap;\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n */\n bool private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Modifier to protect an initializer function from being invoked twice.\n */\n modifier initializer() {\n require(_initializing || !_initialized, \"Initializable: contract is already initialized\");\n\n bool isTopLevelCall = !_initializing;\n if (isTopLevelCall) {\n _initializing = true;\n _initialized = true;\n }\n\n _;\n\n if (isTopLevelCall) {\n _initializing = false;\n }\n }\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20Upgradeable {\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20Upgradeable.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20MetadataUpgradeable is IERC20Upgradeable {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-IERC20PermitUpgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n */\ninterface IERC20PermitUpgradeable {\n /**\n * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n * given ``owner``'s signed approval.\n *\n * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n * ordering also apply here.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `deadline` must be a timestamp in the future.\n * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n * over the EIP712-formatted function arguments.\n * - the signature must use ``owner``'s current nonce (see {nonces}).\n *\n * For more information on the signature format, see the\n * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n * section].\n */\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n /**\n * @dev Returns the current nonce for `owner`. This value must be\n * included whenever a signature is generated for {permit}.\n *\n * Every successful call to {permit} increases ``owner``'s nonce by one. This\n * prevents a signature from being used multiple times.\n */\n function nonces(address owner) external view returns (uint256);\n\n /**\n * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n */\n // solhint-disable-next-line func-name-mixedcase\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/utils/cryptography/draft-EIP712Upgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nimport \"./ECDSAUpgradeable.sol\";\nimport \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\n *\n * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,\n * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding\n * they need in their contracts using a combination of `abi.encode` and `keccak256`.\n *\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\n * ({_hashTypedDataV4}).\n *\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\n * the chain id to protect against replay attacks on an eventual fork of the chain.\n *\n * NOTE: This contract implements the version of the encoding known as \"v4\", as implemented by the JSON RPC method\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\n *\n * _Available since v3.4._\n */\nabstract contract EIP712Upgradeable is Initializable {\n /* solhint-disable var-name-mixedcase */\n bytes32 private _HASHED_NAME;\n bytes32 private _HASHED_VERSION;\n bytes32 private constant _TYPE_HASH = keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\");\n\n /* solhint-enable var-name-mixedcase */\n\n /**\n * @dev Initializes the domain separator and parameter caches.\n *\n * The meaning of `name` and `version` is specified in\n * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\n *\n * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\n * - `version`: the current major version of the signing domain.\n *\n * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\n * contract upgrade].\n */\n function __EIP712_init(string memory name, string memory version) internal initializer {\n __EIP712_init_unchained(name, version);\n }\n\n function __EIP712_init_unchained(string memory name, string memory version) internal initializer {\n bytes32 hashedName = keccak256(bytes(name));\n bytes32 hashedVersion = keccak256(bytes(version));\n _HASHED_NAME = hashedName;\n _HASHED_VERSION = hashedVersion;\n }\n\n /**\n * @dev Returns the domain separator for the current chain.\n */\n function _domainSeparatorV4() internal view returns (bytes32) {\n return _buildDomainSeparator(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash());\n }\n\n function _buildDomainSeparator(\n bytes32 typeHash,\n bytes32 nameHash,\n bytes32 versionHash\n ) private view returns (bytes32) {\n return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));\n }\n\n /**\n * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\n * function returns the hash of the fully encoded EIP712 message for this domain.\n *\n * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\n *\n * ```solidity\n * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\n * keccak256(\"Mail(address to,string contents)\"),\n * mailTo,\n * keccak256(bytes(mailContents))\n * )));\n * address signer = ECDSA.recover(digest, signature);\n * ```\n */\n function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\n return ECDSAUpgradeable.toTypedDataHash(_domainSeparatorV4(), structHash);\n }\n\n /**\n * @dev The hash of the name parameter for the EIP712 domain.\n *\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n * are a concern.\n */\n function _EIP712NameHash() internal virtual view returns (bytes32) {\n return _HASHED_NAME;\n }\n\n /**\n * @dev The hash of the version parameter for the EIP712 domain.\n *\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n * are a concern.\n */\n function _EIP712VersionHash() internal virtual view returns (bytes32) {\n return _HASHED_VERSION;\n }\n uint256[50] private __gap;\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/utils/cryptography/ECDSAUpgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\n *\n * These functions can be used to verify that a message was signed by the holder\n * of the private keys of a given address.\n */\nlibrary ECDSAUpgradeable {\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature`. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n *\n * Documentation for signature generation:\n * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n */\n function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\n // Check the signature length\n // - case 65: r,s,v signature (standard)\n // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._\n if (signature.length == 65) {\n bytes32 r;\n bytes32 s;\n uint8 v;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n return recover(hash, v, r, s);\n } else if (signature.length == 64) {\n bytes32 r;\n bytes32 vs;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n assembly {\n r := mload(add(signature, 0x20))\n vs := mload(add(signature, 0x40))\n }\n return recover(hash, r, vs);\n } else {\n revert(\"ECDSA: invalid signature length\");\n }\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `r` and `vs` short-signature fields separately.\n *\n * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n *\n * _Available since v4.2._\n */\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address) {\n bytes32 s;\n uint8 v;\n assembly {\n s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)\n v := add(shr(255, vs), 27)\n }\n return recover(hash, v, r, s);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `v`, `r` and `s` signature fields separately.\n */\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n //\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n // these malleable signatures as well.\n require(\n uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0,\n \"ECDSA: invalid signature 's' value\"\n );\n require(v == 27 || v == 28, \"ECDSA: invalid signature 'v' value\");\n\n // If the signature is valid (and not malleable), return the signer address\n address signer = ecrecover(hash, v, r, s);\n require(signer != address(0), \"ECDSA: invalid signature\");\n\n return signer;\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from a `hash`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {\n // 32 is the length in bytes of hash,\n // enforced by the type signature above\n return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n32\", hash));\n }\n\n /**\n * @dev Returns an Ethereum Signed Typed Data, created from a\n * `domainSeparator` and a `structHash`. This produces hash corresponding\n * to the one signed with the\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\n * JSON-RPC method as part of EIP-712.\n *\n * See {recover}.\n */\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19\\x01\", domainSeparator, structHash));\n }\n}\n"},"node_modules/@openzeppelin/contracts-upgradeable/utils/CountersUpgradeable.sol":{"content":"// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n */\nlibrary CountersUpgradeable {\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n unchecked {\n counter._value += 1;\n }\n }\n\n function decrement(Counter storage counter) internal {\n uint256 value = counter._value;\n require(value > 0, \"Counter: decrement overflow\");\n unchecked {\n counter._value = value - 1;\n }\n }\n\n function reset(Counter storage counter) internal {\n counter._value = 0;\n }\n}\n"}},"matchId":"28570484","creationMatch":"match","runtimeMatch":"match","verifiedAt":"2026-05-05T16:14:02Z","match":"match","chainId":"42220","address":"0x49912F84f43d2675d99941B7F21a5d9eD2eab71E"}