diff --git a/pyinfra/visitor.py b/pyinfra/visitor.py
index 5c5d14c..767dce9 100644
--- a/pyinfra/visitor.py
+++ b/pyinfra/visitor.py
@@ -3,7 +3,6 @@ import gzip
 import hashlib
 import json
 import logging
-import time
 from collections import deque
 from operator import itemgetter
 from typing import Callable, Dict, Union
@@ -23,11 +22,9 @@ from pyinfra.storage.storage import Storage
 logger = logging.getLogger(__name__)
 
 
-def unique_hash(pages, seed=""):
-    assert isinstance(seed, str)
+def unique_hash(pages):
     pages_str = "-".join(map(str, pages))
-    seed = seed or str(time.time())
-    rand_str = (pages_str + seed).encode(encoding="UTF-8", errors="strict")
+    rand_str = pages_str.encode(encoding="UTF-8", errors="strict")
     hsh = hashlib.md5(rand_str).hexdigest()
     return hsh
 
@@ -68,11 +65,11 @@ def get_response_object_descriptor(body):
 
 class ResponseStrategy(abc.ABC):
     @abc.abstractmethod
-    def handle_response(self, body):
+    def handle_response(self, analysis_payload: dict):
         pass
 
-    def __call__(self, body):
-        return self.handle_response(body)
+    def __call__(self, analysis_payload: dict):
+        return self.handle_response(analysis_payload)
 
 
 class StorageStrategy(ResponseStrategy):
@@ -144,19 +141,19 @@ class AggregationStorageStrategy(ResponseStrategy):
         analysis_payload : {data: ..., metadata: ...}
         """
 
-        storage_upload_info = {**request_metadata, "id": analysis_payload.get("id", "0")}
+        storage_upload_info = {**request_metadata, "id": analysis_payload["metadata"].get("id", "0")}
 
         if analysis_payload["data"]:
             return self.put_object(json.dumps(analysis_payload).encode(), storage_upload_info)
 
         else:
             self.buffer.append(analysis_payload)
-            if last or self.dispatch_callback(request_metadata):
+            if last or self.dispatch_callback(storage_upload_info):
                 return self.upload_queue_items(storage_upload_info)
 
-    def handle_response(self, payload, final=False):
-        request_metadata = omit(payload, ["data"])
-        result_data = peekable(payload["data"])
+    def handle_response(self, analysis_payload, final=False):
+        request_metadata = omit(analysis_payload, ["data"])
+        result_data = peekable(analysis_payload["data"])
         for analysis_payload in result_data:
             yield self.upload_or_aggregate(analysis_payload, request_metadata, last=not result_data.peek(False))
 
diff --git a/test/fixtures/server.py b/test/fixtures/server.py
index 70395a3..cae4fde 100644
--- a/test/fixtures/server.py
+++ b/test/fixtures/server.py
@@ -85,7 +85,8 @@ def core_operation(item_type, one_to_many, analysis_task):
         return string.decode().upper().encode(), metadata
 
     def extract(string: bytes, metadata):
-        for c in project(dict(enumerate(string.decode())), metadata["pages"]).values():
+        for i, c in project(dict(enumerate(string.decode())), metadata["pages"]).items():
+            metadata["id"] = i
             yield c.encode(), metadata
 
     def rotate(im: bytes, metadata):
@@ -98,6 +99,7 @@ def core_operation(item_type, one_to_many, analysis_task):
     def stream_pages(pdf: bytes, metadata):
         for i, page in enumerate(fitz.open(stream=pdf)):
             # yield page.get_pixmap().tobytes("png"), metadata
+            metadata["id"] = i
             yield f"page_{i}".encode(), metadata
 
     params2op = {