diff --git a/viewer/metadata_schema.md b/viewer/metadata_schema.md
new file mode 100644
index 0000000..e21338c
--- /dev/null
+++ b/viewer/metadata_schema.md
@@ -0,0 +1,96 @@
+### Base data point
+
+```jsx
+{
+ "start": "",
+ "end": "",
+ "uid": "",
+ "type": {"music","commentary","transcript","video_source","narration_source", "ohms"}
+ "data": {}
+}
+
+```
+
+### Special data types
+
+##### music
+
+```jsx
+{
+ "type": "music"
+ "title": "",
+ "artist": "",
+ "year": ""
+
+ "hyperlink": ""
+}
+```
+
+### **transcript**
+
+```jsx
+{
+ "type": "transcript"
+ "text": "", // note: may contain VTT-compatible styling
+}
+```
+
+### **footage_source**
+
+```jsx
+{
+ "type": "footage_source",
+ "title": ""
+ "attribution": "",
+ "year": ""
+
+ "hyperlinks": {
+ "hyperlink": "http://example.org",
+ "hyperlink_text": "",
+ "hyperlink_text_alt":, ""
+ }
+}
+```
+
+### **narration_source**
+
+```jsx
+{
+ "type": "narration_source"
+ "title": ""
+ "attribution": "",
+ "year": ""
+
+ "hyperlinks": {
+ "hyperlink": "http://example.org",
+ "hyperlink_text": "",
+ "hyperlink_text_alt":, ""
+ }
+}
+```
+
+### **ohms** (or **concept**) ([http://ohda.matrix.msu.edu/2014/11/indexing-interviews-in-ohms/](http://ohda.matrix.msu.edu/2014/11/indexing-interviews-in-ohms/))
+
+```jsx
+{ // directly copied from webvtt-player (which copies the OHMS standard)
+ "title": "",
+ "title_alt": "",
+ "synopsis": "",
+ "synopsis_alt": "",
+ "keywords": "",
+ "keywords_alt": "",
+ "subjects": "",
+ "subjects_alt": "",
+ "gpspoints": {
+ "gps": "00.0000000, 00.0000000",
+ "gps_zoom": "0",
+ "gps_text": "",
+ "gps_text_alt": ""
+ },
+ "hyperlinks": {
+ "hyperlink": "http://example.org",
+ "hyperlink_text": "",
+ "hyperlink_text_alt":, ""
+ }
+}
+```
\ No newline at end of file
diff --git a/viewer/src/pages/index.tsx b/viewer/src/pages/index.tsx
index ffedb86..0bcb271 100644
--- a/viewer/src/pages/index.tsx
+++ b/viewer/src/pages/index.tsx
@@ -40,7 +40,7 @@ const Home: NextPage = () => {
documentary metadata viewer
{/* hug the left-hand side of the screen */}
-
+
{/* */}