{
  "series_id": "frb.h10.usdjpy.daily",
  "label": "USD/JPY 公式日次レート（FRB H.10）",
  "layer": 1,
  "source_class": "OFFICIAL_PUBLIC",
  "unit": "JPY per USD",
  "cadence": "daily (published weekly)",
  "algorithm": "frb-h10@1",
  "code_sha256": "7f2f06c0bb0dcbcc2618f432c8f549c69588522689c76586485cff9b0c87a904",
  "code_commit": null,
  "definition": "FRBが公表する外国為替レート（H.10）の日本円。ニューヨーク正午の買値を基準とする公式の日次レート。",
  "vs_market_note": "obs.usdjpy.close.daily（提供者の日足終値）とは別の観測である。基準時刻と気配の取り方が違うため、同じ日でも値は一致しない。実例：2026年8月21日は H.10 が158.91、提供者終値が158.982。これは誤差ではなく定義の差であり、当所はどちらも正としない。差そのものは drv.rate_source_divergence の対象である。",
  "acquisition_note": "FRBの公式履歴ページ（releases/h10/hist）から直接取得する。提供者経由の値と違い、取得が完全に自動化でき、手が止まっても止まらない。",
  "missing_note": "米国の祝日などレートが立たない日は ND として公表される。当所は ND を値0として記録せず、行そのものを作らない（会則第11条）。",
  "release_note": "週次公表、原則として月曜16:15（ニューヨーク時間）。公表日は取得したページの表題から読む。推定しない。",
  "source": {
    "publisher": "Federal Reserve Board",
    "release": "H.10 Foreign Exchange Rates",
    "url": "https://www.federalreserve.gov/releases/h10/hist/dat00_ja.htm",
    "index_url": "https://www.federalreserve.gov/releases/h10/",
    "release_date_on_page": "2026-08-31"
  },
  "fields": {
    "value": "円／米ドル（ニューヨーク正午の買値）"
  },
  "latest": {
    "record_id": "frb.h10.usdjpy.daily:2026-08-28:r0:e3c8bc63e8bf",
    "observation_date": "2026-08-28",
    "observation_precision": "date",
    "publisher_release_at": "2026-08-31T16:15:00-04:00",
    "release_at_method": "rule_derived",
    "release_rule_id": "frb.h10.weekly",
    "release_lag_days": 3,
    "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
    "source_first_seen_at": null,
    "ingested_at": "2026-09-01T13:46:21.012Z",
    "value": "159.9700",
    "status": "ORIGINAL",
    "revision_seq": 0,
    "supersedes_record_id": null
  },
  "previous": {
    "observation_date": "2026-08-27",
    "value": "159.2600"
  },
  "derived": {
    "coverage_from": "2000-01-10",
    "observations_total": 4712,
    "nd_rows_skipped": 189,
    "change_pct_vs_prev": "+0.446"
  },
  "quotation_rule": "提供者の終値と混ぜないこと。基準時刻が違う別の観測である。observation_date と publisher_release_at を取り違えないこと。各日の値は、その日ではなく翌週の公表時点で知り得た。",
  "output_sha256": "397b87c4667cc4bb8d787981cd139b3790cd26e6537965dba71d20eaa6b7ee3f",
  "generated_at": "2026-09-01T13:46:21Z",
  "observations_recent": [
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      "publisher_release_at": "2026-08-31T16:15:00-04:00",
      "release_at_method": "rule_derived",
      "release_rule_id": "frb.h10.weekly",
      "release_lag_days": 3,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
      "ingested_at": "2026-09-01T13:46:21.012Z",
      "value": "159.9700",
      "status": "ORIGINAL",
      "revision_seq": 0,
      "supersedes_record_id": null
    },
    {
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      "publisher_release_at": "2026-08-31T16:15:00-04:00",
      "release_at_method": "rule_derived",
      "release_rule_id": "frb.h10.weekly",
      "release_lag_days": 4,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
      "ingested_at": "2026-09-01T13:46:21.012Z",
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      "revision_seq": 0,
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    },
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      "record_id": "frb.h10.usdjpy.daily:2026-08-26:r0:b2248906d184",
      "observation_date": "2026-08-26",
      "observation_precision": "date",
      "publisher_release_at": "2026-08-31T16:15:00-04:00",
      "release_at_method": "rule_derived",
      "release_rule_id": "frb.h10.weekly",
      "release_lag_days": 5,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
      "ingested_at": "2026-09-01T13:46:21.012Z",
      "value": "159.3600",
      "status": "ORIGINAL",
      "revision_seq": 0,
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    },
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      "observation_date": "2026-08-25",
      "observation_precision": "date",
      "publisher_release_at": "2026-08-31T16:15:00-04:00",
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      "release_rule_id": "frb.h10.weekly",
      "release_lag_days": 6,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
      "ingested_at": "2026-09-01T13:46:21.012Z",
      "value": "159.2100",
      "status": "ORIGINAL",
      "revision_seq": 0,
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    },
    {
      "record_id": "frb.h10.usdjpy.daily:2026-08-24:r0:5c4467219bbd",
      "observation_date": "2026-08-24",
      "observation_precision": "date",
      "publisher_release_at": "2026-08-31T16:15:00-04:00",
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      "release_rule_id": "frb.h10.weekly",
      "release_lag_days": 7,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
      "ingested_at": "2026-09-01T13:46:21.012Z",
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    },
    {
      "record_id": "frb.h10.usdjpy.daily:2026-08-21:r0:650995dcf652",
      "observation_date": "2026-08-21",
      "observation_precision": "date",
      "publisher_release_at": "2026-08-24T16:15:00-04:00",
      "release_at_method": "rule_derived",
      "release_rule_id": "frb.h10.weekly",
      "release_lag_days": 3,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
      "ingested_at": "2026-09-01T13:46:21.012Z",
      "value": "158.9100",
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      "revision_seq": 0,
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    },
    {
      "record_id": "frb.h10.usdjpy.daily:2026-08-20:r0:8a16dd7ca466",
      "observation_date": "2026-08-20",
      "observation_precision": "date",
      "publisher_release_at": "2026-08-24T16:15:00-04:00",
      "release_at_method": "rule_derived",
      "release_rule_id": "frb.h10.weekly",
      "release_lag_days": 4,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
      "ingested_at": "2026-09-01T13:46:21.012Z",
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    {
      "record_id": "frb.h10.usdjpy.daily:2026-08-19:r0:a1807129f5cf",
      "observation_date": "2026-08-19",
      "observation_precision": "date",
      "publisher_release_at": "2026-08-24T16:15:00-04:00",
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      "release_rule_id": "frb.h10.weekly",
      "release_lag_days": 5,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
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      "publisher_release_at": "2026-08-24T16:15:00-04:00",
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      "release_lag_days": 6,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
      "ingested_at": "2026-09-01T13:46:21.012Z",
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      "observation_date": "2026-08-17",
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      "publisher_release_at": "2026-08-24T16:15:00-04:00",
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      "release_lag_days": 7,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
      "source_first_seen_at": null,
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      "release_lag_days": 3,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
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      "release_lag_days": 4,
      "release_note": "H.10は週次公表で、前週分の日次レートが載る。各日の値はその回の公表時点で初めて知り得る",
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  "full": "/api/v0/series/frb.h10.usdjpy.daily/full.json"
}