diff --git a/.gitignore b/.gitignore
index b799a68..8b6f0c9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -142,5 +142,3 @@ dmypy.json
 
 #Other
 .DS_Store
-
-playwright/.auth
diff --git a/figshare/Article.py b/figshare/Article.py
index b2407df..e7bb33a 100644
--- a/figshare/Article.py
+++ b/figshare/Article.py
@@ -305,7 +305,8 @@ def __get_article_metadata_by_version(self, version, article_id):
                             files = version_data['files']
 
                         version_md5 = ''
-                        version_data_for_hashing = metadata_to_hash(version_data)
+                        fields_for_hashing = ['description', 'funding_list', 'related_materials']
+                        version_data_for_hashing = metadata_to_hash(version_data, fields_for_hashing)
                         version_data_for_hashing = standardize_api_result(version_data_for_hashing)
                         version_data_for_hashing = sorter_api_result(version_data_for_hashing)
                         str_version_data_for_hashing = stringify_metadata(version_data_for_hashing).encode("utf-8")
diff --git a/figshare/Collection.py b/figshare/Collection.py
index b1d0995..fc4dc44 100644
--- a/figshare/Collection.py
+++ b/figshare/Collection.py
@@ -6,8 +6,8 @@
 from datetime import datetime
 from figshare.Article import Article
 from figshare.Integration import Integration
-from figshare.Utils import standardize_api_result, sorter_api_result, get_preserved_version_hash_and_size, format_version
-from figshare.Utils import compare_hash, check_wasabi, check_local_path, get_folder_name_in_local_storage, upload_to_remote
+from figshare.Utils import standardize_api_result, sorter_api_result, get_preserved_version_hash_and_size, format_version, metadata_to_hash
+from figshare.Utils import compare_hash, check_wasabi, check_local_path, get_folder_name_in_local_storage, upload_to_remote, stringify_metadata
 
 
 class Collection:
@@ -260,10 +260,12 @@ def process_collections(self, collections):
             for version in versions:
                 folder_name = None
                 dict_data = version
-                dict_data = standardize_api_result(dict_data)
-                dict_data = sorter_api_result(dict_data)
-                json_data = json.dumps(dict_data).encode("utf-8")
-                version_md5 = hashlib.md5(json_data).hexdigest()
+                fields_for_hashing = ['description', 'funding_list', 'related_materials', 'version']
+                dict_data_for_hashing = metadata_to_hash(dict_data, fields_for_hashing)
+                dict_data_for_hashing = standardize_api_result(dict_data_for_hashing)
+                dict_data_for_hashing = sorter_api_result(dict_data_for_hashing)
+                str_dict_data_for_hashing = stringify_metadata(dict_data_for_hashing).encode("utf-8")
+                version_md5 = hashlib.md5(str_dict_data_for_hashing).hexdigest()
                 version_no = format_version(version['version'])
 
                 # Checking archival staging storage (local) for existence of package
@@ -341,7 +343,7 @@ def process_collections(self, collections):
                                                                       self.system_config['ingest_staging_storage'])
                 if len(version_staging_local_storage_list) > 1:
                     self.logs.write_log_in_file("warning",
-                                                f"Multiple copies of article {version['id']} version {version['version']} "
+                                                f"Multiple copies of collection {version['id']} version {version['version']} "
                                                 + "found in archival staging storage",
                                                 True)
                 if compare_hash(version_md5, version_staging_local_storage_list):
diff --git a/figshare/Utils.py b/figshare/Utils.py
index e59b956..c2dad8b 100644
--- a/figshare/Utils.py
+++ b/figshare/Utils.py
@@ -610,21 +610,22 @@ def get_article_id_and_version_from_path(path: str) -> tuple:
     return article_id, version_no
 
 
-def metadata_to_hash(metadata: dict) -> dict:
+def metadata_to_hash(metadata: dict, hashing_metadata: list) -> dict:
     """
     Reduces an article metadata to specific metadata fields
 
     :param  metadata:  Complete article metadata
     :type: dict
 
+    :param hashing_metadata: metadata fields to keep and perform hashing on
+    :type: list
+
     :return: A dictionary containing only metadata fields for hash calculation
     :rtype: dict
     """
     article_metadata = dict(metadata)
-    full_metadata = list(article_metadata.keys())
-    focus_metadata = ['description', 'funding_list', 'related_materials']
-    for key in full_metadata:
-        if key not in focus_metadata:
+    for key in list(article_metadata.keys()):
+        if key not in hashing_metadata:
             del article_metadata[key]
 
     return article_metadata