{
  "operation": "header",
  "header": {
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    "discovered_at_utc": "2026-11-03T12:00:00.000Z",
    "scope": "current-selected-sources",
    "inventory_coverage": "selected-only",
    "transport_complete": true,
    "chunk_count": 2,
    "record_count": 5,
    "document_sha256": "69003390ac78915718f39ef4c9f15b785e07222e94725fbbc77749243e731767"
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}