Add GUID. Closes #10

data/spot.py

@@ -1,4 +1,5 @@
 import json
+import uuid
 from dataclasses import dataclass
 from datetime import datetime
 
@@ -15,6 +16,8 @@ from core.utils import infer_mode_family_from_mode, infer_band_from_freq, infer_
 # Data class that defines a spot.
 @dataclass
 class Spot:
+    # Globally unique identifier for the spot
+    guid: str = str(uuid.uuid4())
     # Callsign of the operator that has been spotted
     dx_call: str = None
     # Callsign of the operator that has spotted them