{
  "schema_id": "ariatimeline.event.v1",
  "required": [
    "timestamp"
  ],
  "fields": [
    "event_id",
    "timestamp",
    "source",
    "source_tz",
    "host_id",
    "user_alias",
    "process_id",
    "process_name",
    "path_alias",
    "dest_alias",
    "action"
  ],
  "sources": [
    "auth",
    "endpoint",
    "network"
  ],
  "notes": [
    "process_id is host-local and lifetime-scoped; it is not a global identifier.",
    "Naive timestamps keep a clock-uncertainty flag. Concurrent events are not causal."
  ]
}