diff --git a/client/DigiDoc.cpp b/client/DigiDoc.cpp
index 092686105..288ff91f9 100644
--- a/client/DigiDoc.cpp
+++ b/client/DigiDoc.cpp
@@ -70,9 +70,9 @@ QDateTime DigiDocSignature::claimedTime() const
 	return toTime(s->claimedSigningTime());
 }
 
-QString DigiDocSignature::id() const
+bool DigiDocSignature::isInvalid() const
 {
-	return from(s->id());
+	return m_status >= Invalid;
 }
 
 QString DigiDocSignature::lastError() const { return m_lastError; }
@@ -521,12 +521,14 @@ bool DigiDoc::open( const QString &file )
 		WaitDialogHolder waitDialog(parent, tr("Opening"), false);
 		return waitFor([&] {
 			b = Container::openPtr(to(file));
-			if(b && b->mediaType() == "application/vnd.etsi.asic-s+zip" && b->dataFiles().size() == 1)
+			if(b && b->mediaType() == "application/vnd.etsi.asic-s+zip" &&
+				b->dataFiles().size() == 1 &&
+				b->signatures().size() == 1)
 			{
 				const DataFile *f = b->dataFiles().at(0);
 				if(from(f->fileName()).endsWith(QStringLiteral(".ddoc"), Qt::CaseInsensitive)  &&
 					CheckConnection().check(QStringLiteral("https://id.eesti.ee/config.json")) &&
-					serviceConfirmation())
+					dispatchToMain(serviceConfirmation))
 				{
 					const QString tmppath = FileDialog::tempPath(FileDialog::safeName(from(f->fileName())));
 					f->saveAs(to(tmppath));
@@ -539,16 +541,11 @@ bool DigiDoc::open( const QString &file )
 					}
 				}
 			}
-			m_fileName = file;
-			bool isTimeStamped = false;
-			if(parentContainer &&
-				parentContainer->dataFiles().size() == 1 &&
-				parentContainer->signatures().size() == 1 &&
-				from(parentContainer->dataFiles()[0]->fileName()).endsWith(QStringLiteral(".ddoc"), Qt::CaseInsensitive))
-				isTimeStamped = parentContainer->signatures()[0]->trustedSigningTime().compare("2018-07-01T00:00:00Z") < 0;
+			bool isTimeStamped = parentContainer && parentContainer->signatures().at(0)->trustedSigningTime().compare("2018-07-01T00:00:00Z") < 0;
 			for(const Signature *signature: b->signatures())
 				m_signatures.append(DigiDocSignature(signature, this, isTimeStamped));
-			qApp->addRecent( file );
+			qApp->addRecent(file);
+			m_fileName = file;
 			containerState = signatures().isEmpty() ? ContainerState::UnsignedSavedContainer : ContainerState::SignedContainer;
 			return true;
 		});
diff --git a/client/DigiDoc.h b/client/DigiDoc.h
index cd92cb80a..7d69c47c6 100644
--- a/client/DigiDoc.h
+++ b/client/DigiDoc.h
@@ -49,7 +49,7 @@ class DigiDocSignature
 
 	QSslCertificate	cert() const;
 	QDateTime	claimedTime() const;
-	QString		id() const;
+	bool		isInvalid() const;
 	QString		lastError() const;
 	QString		location() const;
 	QStringList	locations() const;
diff --git a/client/MainWindow.cpp b/client/MainWindow.cpp
index eb6f1c68d..a670062fc 100644
--- a/client/MainWindow.cpp
+++ b/client/MainWindow.cpp
@@ -1085,9 +1085,7 @@ bool MainWindow::validateFiles(const QString &container, const QStringList &file
 
 void MainWindow::warningClicked(const QString &link)
 {
-	if(link.startsWith(QLatin1String("#invalid-signature-")))
-		emit ui->signContainerPage->details(link.mid(19));
-	else if(link == QLatin1String("#unblock-PIN1"))
+	if(link == QLatin1String("#unblock-PIN1"))
 		ui->accordion->changePin1Clicked (false, true);
 	else if(link == QLatin1String("#unblock-PIN2"))
 		ui->accordion->changePin2Clicked (false, true);
diff --git a/client/Utils.h b/client/Utils.h
index 671b7fe06..4bf7053ed 100644
--- a/client/Utils.h
+++ b/client/Utils.h
@@ -20,6 +20,7 @@
 #pragma once
 
 #include <QEventLoop>
+#include <QTimer>
 #include <exception>
 #include <thread>
 
@@ -43,6 +44,23 @@ namespace {
 		return result;
 	}
 
+	template <typename F>
+	inline auto dispatchToMain(F&& function) {
+		typename std::invoke_result<F>::type result{};
+		QEventLoop l;
+		QTimer* timer = new QTimer();
+		timer->moveToThread(qApp->thread());
+		timer->setSingleShot(true);
+		QObject::connect(timer, &QTimer::timeout, timer, [&] {
+			result = function();
+			l.exit();
+			timer->deleteLater();
+		});
+		QMetaObject::invokeMethod(timer, "start", Qt::QueuedConnection, Q_ARG(int, 0));
+		l.exec();
+		return result;
+	}
+
 	inline QString escapeUnicode(const QString &str) {
 		QString escaped;
 		escaped.reserve(6 * str.size());
diff --git a/client/widgets/ContainerPage.cpp b/client/widgets/ContainerPage.cpp
index 2ce90ce83..bd6fbb395 100644
--- a/client/widgets/ContainerPage.cpp
+++ b/client/widgets/ContainerPage.cpp
@@ -66,7 +66,6 @@ ContainerPage::ContainerPage(QWidget *parent)
 	mobileCode = QSettings().value(QStringLiteral("MobileCode")).toString();
 
 	connect(this, &ContainerPage::moved,this, &ContainerPage::setHeader);
-	connect(this, &ContainerPage::details, ui->rightPane, &ItemList::details);
 	connect(ui->changeLocation, &LabelButton::clicked, this, &ContainerPage::forward);
 	connect(ui->cancel, &LabelButton::clicked, this, &ContainerPage::forward);
 	connect(ui->save, &LabelButton::clicked, this, &ContainerPage::forward);
@@ -329,7 +328,7 @@ void ContainerPage::transition(DigiDoc* container)
 		for(const DigiDocSignature &c: container->timestamps())
 		{
 			SignatureItem *item = new SignatureItem(c, container->state(), ui->rightPane);
-			if(item->isInvalid())
+			if(c.isInvalid())
 				addError(item);
 			ui->rightPane->addHeaderWidget(item);
 		}
@@ -338,7 +337,7 @@ void ContainerPage::transition(DigiDoc* container)
 	for(const DigiDocSignature &c: container->signatures())
 	{
 		SignatureItem *item = new SignatureItem(c, container->state(), ui->rightPane);
-		if(item->isInvalid())
+		if(c.isInvalid())
 			addError(item);
 		ui->rightPane->addWidget(item);
 	}
diff --git a/client/widgets/ContainerPage.h b/client/widgets/ContainerPage.h
index cc3e87913..59e1ff71f 100644
--- a/client/widgets/ContainerPage.h
+++ b/client/widgets/ContainerPage.h
@@ -57,7 +57,6 @@ class ContainerPage final : public QWidget
 signals:
 	void action(int code, const QString &info1 = {}, const QString &info2 = {});
 	void addFiles(const QStringList &files);
-	void details(const QString &id);
 	void fileRemoved(int row);
 	void keysSelected(const QList<CKey> &keys);
 	void moved(const QString &to);
diff --git a/client/widgets/Item.cpp b/client/widgets/Item.cpp
index de6d8a6e9..d8d2a83f6 100644
--- a/client/widgets/Item.cpp
+++ b/client/widgets/Item.cpp
@@ -19,8 +19,6 @@
 
 #include "Item.h"
 
-QString Item::id() const { return QString(); }
 void Item::idChanged(const SslCertificate & /* cert */) {}
 void Item::initTabOrder(QWidget * /* item */) {}
-void Item::details() {}
 QWidget* Item::lastTabWidget() { return this; }
diff --git a/client/widgets/Item.h b/client/widgets/Item.h
index 64b6b55eb..a35d4ce03 100644
--- a/client/widgets/Item.h
+++ b/client/widgets/Item.h
@@ -30,14 +30,10 @@ class Item : public StyledWidget
 public:
 	using StyledWidget::StyledWidget;
 
-	virtual QString id() const;
+	virtual void idChanged(const SslCertificate &cert);
 	virtual void initTabOrder(QWidget *item);
 	virtual QWidget* lastTabWidget();
 
-public slots:
-	virtual void details();
-	virtual void idChanged(const SslCertificate &cert);
-
 signals:
 	void add(Item* item);
 	void remove(Item* item);
diff --git a/client/widgets/ItemList.cpp b/client/widgets/ItemList.cpp
index d880506c5..1f95e3ee9 100644
--- a/client/widgets/ItemList.cpp
+++ b/client/widgets/ItemList.cpp
@@ -146,15 +146,6 @@ void ItemList::clear()
 		(*it)->deleteLater();
 }
 
-void ItemList::details(const QString &id)
-{
-	for(auto item: items)
-	{
-		if(item->id() == id)
-			emit item->details();
-	}
-}
-
 bool ItemList::eventFilter(QObject *o, QEvent *e)
 {
 	if(o != ui->infoIcon)
@@ -272,11 +263,6 @@ void ItemList::setRecipientTooltip()
 #endif
 }
 
-void ItemList::setTerm(const QString &term)
-{
-	ui->txtFind->setText(term);
-}
-
 void ItemList::stateChange( ContainerState state )
 {
 	this->state = state;
diff --git a/client/widgets/ItemList.h b/client/widgets/ItemList.h
index c7c5b2220..e08b7e3a4 100644
--- a/client/widgets/ItemList.h
+++ b/client/widgets/ItemList.h
@@ -50,7 +50,6 @@ class ItemList : public QScrollArea
 	ria::qdigidoc4::ContainerState getState() const;
 	bool hasItem(const std::function<bool(Item* const)> &cb);
 	virtual void removeItem(int row);
-	void setTerm(const QString &term);
 	virtual void stateChange(ria::qdigidoc4::ContainerState state);
 
 signals:
@@ -62,16 +61,11 @@ class ItemList : public QScrollArea
 	void removed(int row);
 	void search(const QString &term);
 
-public slots:
-	void details(const QString &id);
-
-protected slots:
-	virtual void remove(Item *item);
-	
 protected:
 	void changeEvent(QEvent* event) override;
 	bool eventFilter(QObject *o, QEvent *e) override;
 	int index(Item *item) const;
+	virtual void remove(Item *item);
 
 	Ui::ItemList* ui;
 	std::vector<Item*> items;
diff --git a/client/widgets/SignatureItem.cpp b/client/widgets/SignatureItem.cpp
index d3cbdb727..8f899989d 100644
--- a/client/widgets/SignatureItem.cpp
+++ b/client/widgets/SignatureItem.cpp
@@ -40,7 +40,6 @@ class SignatureItem::Private: public Ui::SignatureItem
 	explicit Private(DigiDocSignature s): signature(std::move(s)) {}
 	DigiDocSignature signature;
 
-	bool invalid = true;
 	ria::qdigidoc4::WarningType error = ria::qdigidoc4::NoWarning;
 	QString nameText;
 	QString serial;
@@ -82,7 +81,6 @@ void SignatureItem::init()
 	ui->serial.clear();
 	ui->status.clear();
 	ui->error = ria::qdigidoc4::NoWarning;
-	ui->invalid = signatureValidity >= DigiDocSignature::Invalid;
 	if(!cert.isNull())
 		ui->nameText = cert.toString(cert.showCN() ? QStringLiteral("CN") : QStringLiteral("GN SN")).toHtmlEscaped();
 	else
@@ -102,7 +100,7 @@ void SignatureItem::init()
 	auto color = [](QLatin1String color, const QString &text) {
 		return QStringLiteral("<font color=\"%1\">%2</font>").arg(color, text);
 	};
-	switch( signatureValidity )
+	switch(ui->signature.status())
 	{
 	case DigiDocSignature::Valid:
 		ui->status = color(QLatin1String("green"), isValid);
@@ -156,13 +154,9 @@ bool SignatureItem::event(QEvent *event)
 	return Item::event(event);
 }
 
-void SignatureItem::details()
-{
-	(new SignatureDialog(ui->signature, this))->open();
-}
-
 bool SignatureItem::eventFilter(QObject *o, QEvent *e)
 {
+	auto details = [this]{ (new SignatureDialog(ui->signature, this))->open(); };
 	switch(e->type())
 	{
 	case QEvent::MouseButtonRelease:
@@ -185,22 +179,12 @@ ria::qdigidoc4::WarningType SignatureItem::getError() const
 	return ui->error;
 }
 
-QString SignatureItem::id() const
-{
-	return ui->signature.id();
-}
-
 void SignatureItem::initTabOrder(QWidget *item)
 {
 	setTabOrder(item, ui->name);
 	setTabOrder(ui->name, lastTabWidget());
 }
 
-bool SignatureItem::isInvalid() const
-{
-	return ui->invalid;
-}
-
 bool SignatureItem::isSelfSigned(const QString& cardCode, const QString& mobileCode) const
 {
 	return !ui->serial.isEmpty() && (ui->serial == cardCode || ui->serial == mobileCode);
@@ -231,7 +215,7 @@ void SignatureItem::updateNameField()
 	doc.setHtml(ui->status);
 	QString plain = doc.toPlainText();
 	auto red = [this](const QString &text) {
-		return ui->invalid ? QStringLiteral("<font color=\"red\">%1</font>").arg(text) : text;
+		return ui->signature.isInvalid() ? QStringLiteral("<font color=\"red\">%1</font>").arg(text) : text;
 	};
 	if(ui->name->fontMetrics().boundingRect(ui->nameText + " - " + plain).width() < ui->name->width())
 		ui->name->setText(red(ui->nameText + " - ") + ui->status);
diff --git a/client/widgets/SignatureItem.h b/client/widgets/SignatureItem.h
index 2969d514b..3aa4b7974 100644
--- a/client/widgets/SignatureItem.h
+++ b/client/widgets/SignatureItem.h
@@ -32,11 +32,8 @@ class SignatureItem final : public Item
 	explicit SignatureItem(DigiDocSignature s, ria::qdigidoc4::ContainerState state, QWidget *parent = nullptr);
 	~SignatureItem() final;
 
-	void details() final;
 	ria::qdigidoc4::WarningType getError() const;
-	QString id() const final;
 	void initTabOrder(QWidget *item) final;
-	bool isInvalid() const;
 	bool isSelfSigned(const QString& cardCode, const QString& mobileCode) const;
 	QWidget* lastTabWidget() final;