diff --git a/specs-go/v1/annotations.go b/specs-go/v1/annotations.go
index 581cf7cdf..c1bea520f 100644
--- a/specs-go/v1/annotations.go
+++ b/specs-go/v1/annotations.go
@@ -59,4 +59,8 @@ const (
 
 	// AnnotationBaseImageName is the annotation key for the image reference of the image's base image.
 	AnnotationBaseImageName = "org.opencontainers.image.base.name"
+
+	// AnnotationImageLayerPath is the annotation key for the layer path.
+	// SHOULD only work for media type `application/vnd.oci.image.layer.v1.raw`
+	AnnotationImageLayerPath = "org.opencontainers.image.layer.path"
 )
diff --git a/specs-go/v1/mediatype.go b/specs-go/v1/mediatype.go
index ce8313e79..6060b3ab3 100644
--- a/specs-go/v1/mediatype.go
+++ b/specs-go/v1/mediatype.go
@@ -45,6 +45,10 @@ const (
 	// MediaTypeImageLayerZstd is the media type used for zstd compressed
 	// layers referenced by the manifest.
 	MediaTypeImageLayerZstd = "application/vnd.oci.image.layer.v1.tar+zstd"
+
+	// MediaTypeImageLayerRaw is the media type used for layers referenced by the manifest.
+	// the file path is specified by annotation `org.opencontainers.image.layer.path`.
+	MediaTypeImageLayerRaw = "application/vnd.oci.image.layer.v1.raw"
 )
 
 // Non-distributable layer media-types.