diff --git a/check.sh b/check.sh
new file mode 100755
index 0000000..9260dbe
--- /dev/null
+++ b/check.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+files=(
+    "custom-node-list.json"
+    "model-list.json"
+    "alter-list.json"
+    "extension-node-map.json"
+    "node_db/new/custom-node-list.json"
+    "node_db/new/model-list.json"
+    "node_db/new/extension-node-map.json"
+    "node_db/dev/custom-node-list.json"
+    "node_db/dev/model-list.json"
+    "node_db/dev/extension-node-map.json"
+    "node_db/tutorial/custom-node-list.json"
+    "node_db/tutorial/model-list.json"
+    "node_db/tutorial/extension-node-map.json"
+    "node_db/legacy/custom-node-list.json"
+    "node_db/legacy/model-list.json"
+    "node_db/legacy/extension-node-map.json"
+    "node_db/forked/custom-node-list.json"
+    "node_db/forked/model-list.json"
+    "node_db/forked/extension-node-map.json"
+)
+
+for file in "${files[@]}"; do
+    python json-checker.py "$file"
+done
diff --git a/scan.sh b/scan.sh
index bea8515..1b3cc37 100755
--- a/scan.sh
+++ b/scan.sh
@@ -2,3 +2,6 @@
 rm ~/.tmp/default/*.py > /dev/null 2>&1
 python scanner.py ~/.tmp/default
 cp extension-node-map.json node_db/new/.
+
+echo Integrity check
+./check.sh