diff --git a/appPublic/uniqueID.py b/appPublic/uniqueID.py
index cb91ca6..2c7dc44 100755
--- a/appPublic/uniqueID.py
+++ b/appPublic/uniqueID.py
@@ -7,3 +7,30 @@ def setNode(n='ff001122334455'):
 def getID(size=21):
 	return generate(size=size)
 
+def validate_code(id, cnt=6):
+	b = int(len(id) / cnt)
+	j = 0
+	code = []
+	v = 0
+	print(f'{b=}, {cnt=}')
+	for c in id:
+		if j >= b:
+			v = v % 10
+			code.append(str(v))
+			j = 0
+		v += ord(c)
+		j += 1
+		if len(code) >= cnt:
+			break
+	return code
+
+def check_code(id, code):
+	c = validate_code(id)
+	return c==code
+
+if __name__ == '__main__':
+	id = getID()
+	code = validate_code(id)
+	b = check_code(id, code)
+	print(id, code, b)
+