diff --git a/swagger/docs.go b/swagger/docs.go
index 9ff4fb11124e..0b1b0514d682 100644
--- a/swagger/docs.go
+++ b/swagger/docs.go
@@ -3078,6 +3078,10 @@ const docTemplate = `{
                 "name": {
                     "type": "string"
                 },
+                "sha256": {
+                    "description": "SHA256 is the expected sha256 of the backend tarball at URI / Mirrors.\nEmpty disables the integrity check; OCI URIs carry their own digest.",
+                    "type": "string"
+                },
                 "size": {
                     "description": "Size is an optional hardcoded model size string (e.g. \"500MB\", \"14.5GB\").\nUsed when the size cannot be estimated automatically.",
                     "type": "string"
diff --git a/swagger/swagger.json b/swagger/swagger.json
index f4c669ff8c3b..65047fe86a87 100644
--- a/swagger/swagger.json
+++ b/swagger/swagger.json
@@ -3075,6 +3075,10 @@
                 "name": {
                     "type": "string"
                 },
+                "sha256": {
+                    "description": "SHA256 is the expected sha256 of the backend tarball at URI / Mirrors.\nEmpty disables the integrity check; OCI URIs carry their own digest.",
+                    "type": "string"
+                },
                 "size": {
                     "description": "Size is an optional hardcoded model size string (e.g. \"500MB\", \"14.5GB\").\nUsed when the size cannot be estimated automatically.",
                     "type": "string"
diff --git a/swagger/swagger.yaml b/swagger/swagger.yaml
index 1f06587b15d0..21635924020d 100644
--- a/swagger/swagger.yaml
+++ b/swagger/swagger.yaml
@@ -94,6 +94,11 @@ definitions:
         type: array
       name:
         type: string
+      sha256:
+        description: |-
+          SHA256 is the expected sha256 of the backend tarball at URI / Mirrors.
+          Empty disables the integrity check; OCI URIs carry their own digest.
+        type: string
       size:
         description: |-
           Size is an optional hardcoded model size string (e.g. "500MB", "14.5GB").