diff --git a/src/index.ts b/src/index.ts
index 5f31910..06ea5c8 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -111,17 +111,15 @@ export interface EntryCommon {
   visibleName: string;
   /** the last modified timestamp */
   lastModified: string;
+  /** true if the entry is starred in most ui elements */
+  pinned: boolean;
   /**
    * the parent of this entry
    *
    * There are two special parents, "" (empty string) for the root directory,
    * and "trash" for the trash
    */
-  parent: string;
-  /** true if the entry is starred in most ui elements */
-  pinned: boolean;
-  /** the timestamp of the last time this entry was opened */
-  lastOpened: string;
+  parent?: string;
   /** any tags the entry might have */
   tags?: Tag[];
 }
@@ -138,35 +136,23 @@ export interface DocumentType extends EntryCommon {
   type: "DocumentType";
   /** the type of the file */
   fileType: "epub" | "pdf" | "notebook";
+  /** the timestamp of the last time this entry was opened */
+  lastOpened: string;
 }
 
 /** a remarkable entry for cloud items */
 export type Entry = CollectionEntry | DocumentType;
 
-/** an simple entry produced by the upload api */
-export interface UploadEntry {
-  /** the document id */
-  docID: string;
-  /** the document hash */
-  hash: string;
-}
-
-const uploadEntry = properties({
-  docID: string(),
-  hash: string(),
-}) satisfies CompiledSchema<UploadEntry, unknown>;
-
 const commonProperties = {
   id: string(),
   hash: string(),
   visibleName: string(),
   lastModified: string(),
-  parent: string(),
   pinned: boolean(),
-  lastOpened: string(),
 } as const;
 
 const commonOptionalProperties = {
+  parent: string(),
   tags: elements(
     properties({
       name: string(),
@@ -178,7 +164,11 @@ const commonOptionalProperties = {
 const entry = discriminator("type", {
   CollectionType: properties(commonProperties, commonOptionalProperties, true),
   DocumentType: properties(
-    { ...commonProperties, fileType: enumeration("epub", "pdf", "notebook") },
+    {
+      ...commonProperties,
+      lastOpened: string(),
+      fileType: enumeration("epub", "pdf", "notebook"),
+    },
     commonOptionalProperties,
     true,
   ),
@@ -186,6 +176,19 @@ const entry = discriminator("type", {
 
 const entries = elements(entry) satisfies CompiledSchema<Entry[], unknown>;
 
+/** an simple entry produced by the upload api */
+export interface UploadEntry {
+  /** the document id */
+  docID: string;
+  /** the document hash */
+  hash: string;
+}
+
+const uploadEntry = properties({
+  docID: string(),
+  hash: string(),
+}) satisfies CompiledSchema<UploadEntry, unknown>;
+
 /** the new hash of a modified entry */
 export interface HashEntry {
   /** the actual hash */