{"key": "source-composition", "title": "Source composition", "labels": [], "values": [], "series": [], "rows": [], "nodes": [], "edges": [], "events": [], "visualization": "bar", "metadata": {"sample_size": 0, "coverage_start": "2026-07-06T19:25:23.642963+00:00", "coverage_end": "2026-07-07T05:02:40.753646+00:00", "last_updated": "2026-07-07T05:48:16.340185+00:00", "unit": "unique evidence sources", "unique_claims_vs_appearances": "The dashboard identifies whether values are unique canonical claims, source items, appearances, or other units.", "missing_data": "Zero means no qualifying database records. It does not prove an event never occurred outside captured coverage.", "capture_gaps": "127.000", "minimum_sample_threshold": 10, "small_sample_warning": true, "provisional": true, "automation_status": "Computed from authoritative database records; reviewed status is separately reported.", "data_version": "foxwatchdog-universal-complete-build-20.0.0-localfix", "methodology_url": "/methodology/", "download_json": "https://foxwatchdog.com/proof/data/source-composition.json", "download_csv": "https://foxwatchdog.com/proof/data/source-composition.csv", "limitations": "No ranking is produced from small samples. Missing capture and unequal coverage periods remain visible."}}