diff --git a/products/catalog.json b/products/catalog.json
index be84321f5..11909c8d9 100644
--- a/products/catalog.json
+++ b/products/catalog.json
@@ -1820,6 +1820,12 @@
       "rel": "self",
       "href": "https://esa-earthcode.github.io/open-science-catalog-metadata/products/catalog.json",
       "type": "application/json"
+    },
+    {
+      "rel": "child",
+      "href": "./doi-test/collection.json",
+      "type": "application/json",
+      "title": "DOI test"
     }
   ],
   "updated": "2024-09-12T20:32:22.975110Z",
diff --git a/products/doi-test/collection.json b/products/doi-test/collection.json
new file mode 100644
index 000000000..1c42dad3a
--- /dev/null
+++ b/products/doi-test/collection.json
@@ -0,0 +1,40 @@
+{
+  "id": "doi-test",
+  "title": "DOI test",
+  "stac_version": "1.0.0",
+  "stac_extensions": [],
+  "type": "Collection",
+  "description": "testing",
+  "keywords": [],
+  "license": "various",
+  "extent": {
+    "spatial": {
+      "bbox": []
+    },
+    "temporal": {
+      "interval": [
+        null
+      ]
+    }
+  },
+  "providers": [],
+  "summaries": [],
+  "assets": {},
+  "links": [],
+  "created": "",
+  "updated": "",
+  "osc:type": "product",
+  "osc:status": "planned",
+  "osc:project": "",
+  "osc:region": "",
+  "osc:variables": [],
+  "osc:missions": [],
+  "osc:experiment": "",
+  "themes": [],
+  "cf:parameter": [
+    {
+      "name": "",
+      "unit": ""
+    }
+  ]
+}