{
  "id": "417785",
  "title": "50-Year KTB Auction",
  "country": "KR",
  "indicator": "50 Year Bond Yield",
  "category": "bnd",
  "event_date_utc": "2026-03-13T02:30:00.000Z",
  "source": "Ministry of Economy and Finance (KTB) - Auction Results",
  "source_url": "https://ktb.moef.go.kr/eng/aucResDetail.do?nttId=2196&bbsId=BBSMSTR_000000000004",
  "retrieved_at_utc": "2026-03-15T00:00:00Z",
  "raw_file": "research_output/raw/417785.html",
  "result_md": "research_output/results/417785_result.md",
  "document_type": "html",
  "language": "en",
  "key_values": {
    "accepted_rate": "3.485%",
    "amount_offered": "800 billion won",
    "auction_date": "March 13, 2026"
  },
  "notes": [
    "Primary-source auction result page matched to 50Y KTB 02750-7409 on 2026-03-13.",
    "The source page reports accepted rate (3.485%) but does not explicitly print the previous auction value (3.465%)."
  ]
}