File: PhiFactory.sol
622:     function _validateArtCreationSignature(bytes calldata signedData_, bytes calldata signature_) private view {
623:         if (_recoverSigner(keccak256(signedData_), signature_) != phiSignerAddress) revert AddressNotSigned();
624:         (uint256 expiresIn_,,) = abi.decode(signedData_, (uint256, string, bytes));
625:         if (expiresIn_ <= block.timestamp) revert SignatureExpired();
626:         
627:     }
