diff --git a/openapi/access.yaml b/openapi/access.yaml
index 441fbaae4..e60edecab 100644
--- a/openapi/access.yaml
+++ b/openapi/access.yaml
@@ -933,11 +933,18 @@ components:
         - Executed
         - Sealed
         - Expired
+    BlockStatus:
+      type: string
+      description: This value indicates the status of a block.
+      enum:
+        - BLOCK_UNKNOWN
+        - BLOCK_FINALIZED
+        - BLOCK_SEALED
     Block:
       type: object
       required:
         - header
-        - _expandable
+        - block_status
       properties:
         header:
           $ref: '#/components/schemas/BlockHeader'
@@ -955,6 +962,8 @@ components:
               format: uri
         _links:
           $ref: '#/components/schemas/Links'
+        block_status:
+          $ref: '#/components/schemas/BlockStatus'
     BlockHeader:
       type: object
       required:
diff --git a/openapi/go-client-generated/README.md b/openapi/go-client-generated/README.md
index e2bbbf779..50b96a91d 100644
--- a/openapi/go-client-generated/README.md
+++ b/openapi/go-client-generated/README.md
@@ -51,6 +51,7 @@ Class | Method | HTTP request | Description
  - [BlockHeight](docs/BlockHeight.md)
  - [BlockPayload](docs/BlockPayload.md)
  - [BlockSeal](docs/BlockSeal.md)
+ - [BlockStatus](docs/BlockStatus.md)
  - [Chunk](docs/Chunk.md)
  - [Collection](docs/Collection.md)
  - [CollectionExpandable](docs/CollectionExpandable.md)
diff --git a/openapi/go-client-generated/api/swagger.yaml b/openapi/go-client-generated/api/swagger.yaml
index 3f4abf614..8cad874e7 100644
--- a/openapi/go-client-generated/api/swagger.yaml
+++ b/openapi/go-client-generated/api/swagger.yaml
@@ -1575,9 +1575,16 @@ components:
       - Executed
       - Sealed
       - Expired
+    BlockStatus:
+      type: string
+      description: This value indicates the status of a block.
+      enum:
+      - BLOCK_UNKNOWN
+      - BLOCK_FINALIZED
+      - BLOCK_SEALED
     Block:
       required:
-      - _expandable
+      - block_status
       - header
       type: object
       properties:
@@ -1591,7 +1598,10 @@ components:
           $ref: '#/components/schemas/Block__expandable'
         _links:
           $ref: '#/components/schemas/Links'
+        block_status:
+          $ref: '#/components/schemas/BlockStatus'
       example:
+        block_status: BLOCK_UNKNOWN
         payload:
           collection_guarantees:
           - collection_id: null
diff --git a/openapi/go-client-generated/docs/Block.md b/openapi/go-client-generated/docs/Block.md
index d683a5ef6..df6f38706 100644
--- a/openapi/go-client-generated/docs/Block.md
+++ b/openapi/go-client-generated/docs/Block.md
@@ -6,8 +6,9 @@ Name | Type | Description | Notes
 **Header** | [***BlockHeader**](BlockHeader.md) |  | [default to null]
 **Payload** | [***BlockPayload**](BlockPayload.md) |  | [optional] [default to null]
 **ExecutionResult** | [***ExecutionResult**](ExecutionResult.md) |  | [optional] [default to null]
-**Expandable** | [***BlockExpandable**](Block__expandable.md) |  | [default to null]
+**Expandable** | [***BlockExpandable**](Block__expandable.md) |  | [optional] [default to null]
 **Links** | [***Links**](Links.md) |  | [optional] [default to null]
+**BlockStatus** | [***BlockStatus**](BlockStatus.md) |  | [default to null]
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/openapi/go-client-generated/docs/BlockStatus.md b/openapi/go-client-generated/docs/BlockStatus.md
new file mode 100644
index 000000000..a9902ef39
--- /dev/null
+++ b/openapi/go-client-generated/docs/BlockStatus.md
@@ -0,0 +1,8 @@
+# BlockStatus
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/openapi/go-client-generated/model_block.go b/openapi/go-client-generated/model_block.go
index 860f60013..158b7b6b1 100644
--- a/openapi/go-client-generated/model_block.go
+++ b/openapi/go-client-generated/model_block.go
@@ -12,6 +12,7 @@ type Block struct {
 	Header *BlockHeader `json:"header"`
 	Payload *BlockPayload `json:"payload,omitempty"`
 	ExecutionResult *ExecutionResult `json:"execution_result,omitempty"`
-	Expandable *BlockExpandable `json:"_expandable"`
+	Expandable *BlockExpandable `json:"_expandable,omitempty"`
 	Links *Links `json:"_links,omitempty"`
+	BlockStatus *BlockStatus `json:"block_status"`
 }
diff --git a/openapi/go-client-generated/model_block_status.go b/openapi/go-client-generated/model_block_status.go
new file mode 100644
index 000000000..018c8348b
--- /dev/null
+++ b/openapi/go-client-generated/model_block_status.go
@@ -0,0 +1,18 @@
+/*
+ * Access API
+ *
+ * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen)
+ *
+ * API version: 1.0.0
+ * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git)
+ */
+package swagger
+// BlockStatus : This value indicates the status of a block.
+type BlockStatus string
+
+// List of BlockStatus
+const (
+	UNKNOWN_BlockStatus BlockStatus = "BLOCK_UNKNOWN"
+	FINALIZED_BlockStatus BlockStatus = "BLOCK_FINALIZED"
+	SEALED_BlockStatus BlockStatus = "BLOCK_SEALED"
+)