diff --git a/api/onnx_web/chain/blend_grid.py b/api/onnx_web/chain/blend_grid.py
index 376c2af9..84d11393 100644
--- a/api/onnx_web/chain/blend_grid.py
+++ b/api/onnx_web/chain/blend_grid.py
@@ -7,7 +7,7 @@ from ..params import ImageParams, Size, SizeChart, StageParams
 from ..server import ServerContext
 from ..worker import ProgressCallback, WorkerContext
 from .base import BaseStage
-from .result import StageResult
+from .result import ImageMetadata, StageResult
 
 logger = getLogger(__name__)
 
@@ -20,7 +20,7 @@ class BlendGridStage(BaseStage):
         _worker: WorkerContext,
         _server: ServerContext,
         _stage: StageParams,
-        _params: ImageParams,
+        params: ImageParams,
         sources: StageResult,
         *,
         height: int,
@@ -53,7 +53,10 @@ class BlendGridStage(BaseStage):
             output.paste(images[n], (x * size.width, y * size.height))
 
         result = StageResult(source=sources)
-        result.push_image(output, sources.metadata[0])
+        result.push_image(
+            output,
+            ImageMetadata(params, Size(width, height), ancestors=[sources.metadata]),
+        )
         return result
 
     def outputs(
diff --git a/api/onnx_web/chain/blend_img2img.py b/api/onnx_web/chain/blend_img2img.py
index b2350463..0d4a9a83 100644
--- a/api/onnx_web/chain/blend_img2img.py
+++ b/api/onnx_web/chain/blend_img2img.py
@@ -102,7 +102,8 @@ class BlendImg2ImgStage(BaseStage):
 
             outputs.extend(result.images)
 
-        return StageResult(images=outputs, metadata=sources.metadata)
+        metadata = [metadata.child(params) for metadata in sources.metadata]
+        return StageResult(images=outputs, metadata=metadata)
 
     def steps(
         self,
diff --git a/api/onnx_web/chain/result.py b/api/onnx_web/chain/result.py
index 807c42f2..addaddca 100644
--- a/api/onnx_web/chain/result.py
+++ b/api/onnx_web/chain/result.py
@@ -27,14 +27,19 @@ class NetworkMetadata:
 
 
 class ImageMetadata:
-    border: Border
-    highres: HighresParams
+    ancestors: List["ImageMetadata"]
     params: ImageParams
     size: Size
-    upscale: UpscaleParams
-    inversions: Optional[List[NetworkMetadata]]
-    loras: Optional[List[NetworkMetadata]]
-    models: Optional[List[NetworkMetadata]]
+
+    # models
+    inversions: List[NetworkMetadata]
+    loras: List[NetworkMetadata]
+    models: List[NetworkMetadata]
+
+    # optional params
+    border: Optional[Border]
+    highres: Optional[HighresParams]
+    upscale: Optional[UpscaleParams]
 
     @staticmethod
     def unknown_image() -> "ImageMetadata":
@@ -54,15 +59,40 @@ class ImageMetadata:
         inversions: Optional[List[NetworkMetadata]] = None,
         loras: Optional[List[NetworkMetadata]] = None,
         models: Optional[List[NetworkMetadata]] = None,
+        ancestors: Optional[List["ImageMetadata"]] = None,
     ) -> None:
         self.params = params
         self.size = size
         self.upscale = upscale
         self.border = border
         self.highres = highres
-        self.inversions = inversions
-        self.loras = loras
-        self.models = models
+        self.inversions = inversions or []
+        self.loras = loras or []
+        self.models = models or []
+        self.ancestors = ancestors or []
+
+    def child(
+        self,
+        params: ImageParams,
+        size: Size,
+        upscale: Optional[UpscaleParams] = None,
+        border: Optional[Border] = None,
+        highres: Optional[HighresParams] = None,
+        inversions: Optional[List[NetworkMetadata]] = None,
+        loras: Optional[List[NetworkMetadata]] = None,
+        models: Optional[List[NetworkMetadata]] = None,
+    ) -> "ImageMetadata":
+        return ImageMetadata(
+            params,
+            size,
+            upscale,
+            border,
+            highres,
+            inversions,
+            loras,
+            models,
+            [self],
+        )
 
     def get_model_hash(
         self, server: ServerContext, model: Optional[str] = None
diff --git a/api/onnx_web/chain/upscale_resrgan.py b/api/onnx_web/chain/upscale_resrgan.py
index 5e0799c1..4d165ab1 100644
--- a/api/onnx_web/chain/upscale_resrgan.py
+++ b/api/onnx_web/chain/upscale_resrgan.py
@@ -117,4 +117,7 @@ class UpscaleRealESRGANStage(BaseStage):
             logger.info("final output image size: %s", output.shape)
             outputs.append(output)
 
+        for metadata in sources.metadata:
+            metadata.upscale = upscale
+
         return StageResult(arrays=outputs, metadata=sources.metadata)