diff --git a/schemas/note.schema.json b/schemas/note.schema.json
index de90ca3..5dc1342 100644
--- a/schemas/note.schema.json
+++ b/schemas/note.schema.json
@@ -1,39 +1,45 @@
 {
-  "$schema": "https://json-schema.org/draft/2020-12/schema",
-  "title": "mindnet_note",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "mindnet note payload",
   "type": "object",
-  "description": "Note-Payload (Qdrant). Erweitert um fulltext/hash_raw_body für verlustfreien Export.",
-
-  "required": ["note_id", "title", "type", "status", "created", "path"],
-
   "properties": {
-    "note_id":      { "type": "string" },
-    "title":        { "type": "string" },
-    "type":         { "type": "string" },
-    "status":       { "type": "string" },
-    "created":      { "type": "string" },
-    "updated":      { "type": "string" },
+    "note_id": { "type": "string" },
+    "title": { "type": ["string","null"] },
+    "type": { "type": ["string","null"] },
+    "status": { "type": ["string","null"] },
+    "created": { "type": ["string","null"] },
+    "updated": { "type": ["string","null"] },
+    "path":    { "type": ["string","null"] },
+    "tags":    { "type": ["array","null"], "items": { "type": "string" } },
+    "area":    { "type": ["string","null"] },
+    "project": { "type": ["string","null"] },
+    "source":  { "type": ["string","null"] },
+    "lang":    { "type": ["string","null"] },
+    "slug":    { "type": ["string","null"] },
+    "aliases": { "type": ["array","null"], "items": { "type": "string" } },
 
-    "tags":         { "type": "array", "items": { "type": "string" } },
-    "area":         { "type": "string" },
-    "project":      { "type": "string" },
-    "priority":     { "type": "number" },
-    "effort_min":   { "type": "number" },
-    "due":          { "type": "string" },
-    "people":       { "type": "array", "items": { "type": "string" } },
-    "aliases":      { "type": "array", "items": { "type": "string" } },
-    "lang":         { "type": "string" },
+    "fulltext": { "type": ["string","null"] },
+    "references": { "type": ["array","null"], "items": { "type": "string" } },
 
-    "path":         { "type": "string" },
+    "hash_fulltext": { "type": ["string","null"], "pattern": "^[a-f0-9]{64}$" },
+    "hash_signature": { "type": ["string","null"] },
 
-    "references":   { "type": "array", "items": { "type": "string" } },
-    "depends_on":   { "type": "array", "items": { "type": "string" } },
-    "assigned_to":  { "type": "array", "items": { "type": "string" } },
+    "hash_body":        { "type": ["string","null"], "pattern": "^[a-f0-9]{64}$" },
+    "hash_frontmatter": { "type": ["string","null"], "pattern": "^[a-f0-9]{64}$" },
+    "hash_full":        { "type": ["string","null"], "pattern": "^[a-f0-9]{64}$" },
 
-    "hash_fulltext":{ "type": "string" },
-    "hash_raw_body":{ "type": "string" },
-    "fulltext":     { "type": "string" }
+    "hashes": {
+      "type": ["object","null"],
+      "description": "Mapping: <mode>:<source>:<normalize> -> sha256 hex",
+      "patternProperties": {
+        "^(body|frontmatter|full):(parsed|raw):(canonical|none)$": {
+          "type": "string",
+          "pattern": "^[a-f0-9]{64}$"
+        }
+      },
+      "additionalProperties": false
+    }
   },
-
+  "required": ["note_id"],
   "additionalProperties": true
 }