diff --git a/src/wp-admin/includes/post.php b/src/wp-admin/includes/post.php
index c5bad99766..414c1e577b 100644
--- a/src/wp-admin/includes/post.php
+++ b/src/wp-admin/includes/post.php
@@ -2234,7 +2234,7 @@ function get_block_categories( $post ) {
 function get_block_editor_server_block_settings() {
 	$block_registry = WP_Block_Type_Registry::get_instance();
 	$blocks         = array();
-	$keys_to_pick   = array( 'title', 'description', 'icon', 'category', 'keywords', 'parent', 'supports', 'attributes', 'styles' );
+	$keys_to_pick   = array( 'title', 'description', 'icon', 'category', 'keywords', 'parent', 'supports', 'attributes', 'styles', 'textdomain', 'example' );
 
 	foreach ( $block_registry->get_all_registered() as $block_name => $block_type ) {
 		foreach ( $keys_to_pick as $key ) {
diff --git a/src/wp-includes/class-wp-block-type.php b/src/wp-includes/class-wp-block-type.php
index 6ffda95b4e..4d7ba9bd26 100644
--- a/src/wp-includes/class-wp-block-type.php
+++ b/src/wp-includes/class-wp-block-type.php
@@ -15,6 +15,7 @@
  * @see register_block_type()
  */
 class WP_Block_Type {
+
 	/**
 	 * Block type key.
 	 *
@@ -23,21 +24,81 @@ class WP_Block_Type {
 	 */
 	public $name;
 
+	/**
+	 * @since 5.5.0
+	 * @var string
+	 */
+	public $title = '';
+
+	/**
+	 * @since 5.5.0
+	 * @var string
+	 */
+	public $category = '';
+
+	/**
+	 * @since 5.5.0
+	 * @var array|null
+	 */
+	public $parent = null;
+
+	/**
+	 * @since 5.5.0
+	 * @var string
+	 */
+	public $icon = '';
+
+	/**
+	 * @since 5.5.0
+	 * @var string
+	 */
+	public $description = '';
+
+	/**
+	 * @since 5.5.0
+	 * @var array
+	 */
+	public $keywords = array();
+
+	/**
+	 * @since 5.5.0
+	 * @var string|null
+	 */
+	public $textdomain = null;
+
+	/**
+	 * @since 5.5.0
+	 * @var array
+	 */
+	public $styles = array();
+
+	/**
+	 * @since 5.5.0
+	 * @var array
+	 */
+	public $supports = array();
+
+	/**
+	 * @since 5.5.0
+	 * @var array|null
+	 */
+	public $example = null;
+
 	/**
 	 * Block type render callback.
 	 *
 	 * @since 5.0.0
 	 * @var callable
 	 */
-	public $render_callback;
+	public $render_callback = null;
 
 	/**
 	 * Block type attributes property schemas.
 	 *
 	 * @since 5.0.0
-	 * @var array
+	 * @var array|null
 	 */
-	public $attributes;
+	public $attributes = null;
 
 	/**
 	 * Block type editor script handle.
@@ -45,7 +106,7 @@ class WP_Block_Type {
 	 * @since 5.0.0
 	 * @var string
 	 */
-	public $editor_script;
+	public $editor_script = '';
 
 	/**
 	 * Block type front end script handle.
@@ -53,7 +114,7 @@ class WP_Block_Type {
 	 * @since 5.0.0
 	 * @var string
 	 */
-	public $script;
+	public $script = '';
 
 	/**
 	 * Block type editor style handle.
@@ -61,7 +122,7 @@ class WP_Block_Type {
 	 * @since 5.0.0
 	 * @var string
 	 */
-	public $editor_style;
+	public $editor_style = '';
 
 	/**
 	 * Block type front end style handle.
@@ -69,20 +130,21 @@ class WP_Block_Type {
 	 * @since 5.0.0
 	 * @var string
 	 */
-	public $style;
+	public $style = '';
 
 	/**
 	 * Constructor.
 	 *
 	 * Will populate object properties from the provided arguments.
 	 *
-	 * @since 5.0.0
-	 *
-	 * @see register_block_type()
-	 *
 	 * @param string       $block_type Block type name including namespace.
 	 * @param array|string $args       Optional. Array or string of arguments for registering a block type.
 	 *                                 Default empty array.
+	 *
+	 * @since 5.0.0
+	 *
+	 * @see   register_block_type()
+	 *
 	 */
 	public function __construct( $block_type, $args = array() ) {
 		$this->name = $block_type;
diff --git a/tests/phpunit/tests/admin/includesPost.php b/tests/phpunit/tests/admin/includesPost.php
index c44092c6ac..d15497e3ec 100644
--- a/tests/phpunit/tests/admin/includesPost.php
+++ b/tests/phpunit/tests/admin/includesPost.php
@@ -825,6 +825,7 @@ class Tests_Admin_Includes_Post extends WP_UnitTestCase {
 	function test_get_block_editor_server_block_settings() {
 		$name     = 'core/test';
 		$settings = array(
+			'category'        => 'common',
 			'icon'            => 'text',
 			'render_callback' => 'foo',
 		);
@@ -836,7 +837,15 @@ class Tests_Admin_Includes_Post extends WP_UnitTestCase {
 		unregister_block_type( $name );
 
 		$this->assertArrayHasKey( $name, $blocks );
-		$this->assertSame( array( 'icon' => 'text' ), $blocks[ $name ] );
+		$this->assertEquals( array(
+			'title'       => '',
+			'description' => '',
+			'category'    => 'common',
+			'icon'        => 'text',
+			'keywords'    => array(),
+			'supports'    => array(),
+			'styles'      => array(),
+		), $blocks[ $name ] );
 	}
 
 	/**
diff --git a/tests/phpunit/tests/blocks/block-type.php b/tests/phpunit/tests/blocks/block-type.php
index 57433e45af..4605d10733 100644
--- a/tests/phpunit/tests/blocks/block-type.php
+++ b/tests/phpunit/tests/blocks/block-type.php
@@ -349,6 +349,31 @@ class WP_Test_Block_Type extends WP_UnitTestCase {
 		return json_encode( $attributes );
 	}
 
+	/**
+	 * @ticket 48529
+	 */
+	public function test_register_block() {
+		$block_type = new WP_Block_Type( 'core/fake', array(
+			'title'       => 'Test title',
+			'category'    => 'Test category',
+			'parent'      => array( 'core/third-party' ),
+			'icon'        => 'icon.png',
+			'description' => 'test description',
+			'keywords'    => array( 'test keyword' ),
+			'textdomain'  => 'test_domain',
+			'supports'    => array( 'alignment' => true ),
+		) );
+
+		$this->assertSame( 'Test title', $block_type->title );
+		$this->assertSame( 'Test category', $block_type->category );
+		$this->assertEqualSets( array( 'core/third-party' ), $block_type->parent );
+		$this->assertSame( 'icon.png', $block_type->icon );
+		$this->assertSame( 'test description', $block_type->description );
+		$this->assertEqualSets( array( 'test keyword' ), $block_type->keywords );
+		$this->assertSame( 'test_domain', $block_type->textdomain );
+		$this->assertEqualSets( array( 'alignment' => true ), $block_type->supports );
+	}
+
 	/**
 	 * Testing the block version.
 	 *