Licence: per-source terms and required attributions

LICENSE

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+LICENCE — Japan Public Procurement & Company Open Data (LoreaTec)
+=================================================================
+
+This dataset repository aggregates several Japanese government open-data
+sources, each with its own terms, plus original analysis by LoreaTec. There is
+no single upstream licence, which is why the repository is tagged "other".
+Everything here may be reused, including commercially, provided you keep the
+attribution of the source you use and state that the data was processed.
+
+1. FILES AND THEIR TERMS
+------------------------
+
+a) awards_fy2013.csv.gz … awards_fy2026.csv.gz
+   Source: 調達ポータル (Government Procurement Portal) — 落札実績オープンデータ
+   Terms:  open data; reuse and redistribution permitted with attribution.
+   Required notice: 出典：調達ポータル（https://www.p-portal.go.jp/）
+
+b) rs_payees.csv.gz, rs_contracts.csv.gz
+   Source: 行政事業レビュー見える化サイト (Cabinet Secretariat) — RS system
+   Terms:  Public Data License 1.0 (公共データ利用規約 第1.0版), compatible with
+           CC BY 4.0; commercial use permitted.
+           https://www.digital.go.jp/resources/open_data/public_data_license_v1.0
+   Required notice: 出典：行政事業レビュー見える化サイト
+   PDL 1.0 additionally requires stating that the content was edited and by
+   whom, and not presenting the processed data as the government's original.
+   Notice for these files: 「LoreaTec が編集・加工した抜粋であり、内閣官房が
+   公表した原本ではありません。」 ("Edited and processed extract by LoreaTec;
+   not the original publication of the Cabinet Secretariat.")
+
+c) subsidies_gbizinfo.csv.gz, licenses_gbizinfo.csv.gz
+   Source: gBizINFO (Ministry of Economy, Trade and Industry)
+   Terms:  reuse permitted with attribution.
+   Required notice: 出典：gBizINFO（経済産業省）
+
+d) company_events_90d.csv.gz
+   Source: 国税庁法人番号公表サイト (National Tax Agency, corporate-number
+           registry — daily difference files)
+   Terms:  free reuse; attribution recommended.
+   Required notice: 出典：国税庁法人番号公表サイト
+
+e) award_series.csv.gz, awards_with_series.csv.gz, forecast_predictions.json.gz,
+   bidder_registration_windows.json, and every derived column (normalised
+   titles, series identifiers, cadence, confidence, predicted dates,
+   registration-window compilation)
+   Source: original analysis and compilation by LoreaTec.
+   Terms:  Creative Commons Attribution 4.0 International (CC BY 4.0).
+           https://creativecommons.org/licenses/by/4.0/
+   Suggested attribution: "LoreaTec — https://bizsearch.loreatec.jp/datasets"
+   Files (a)–(d) that these derive from keep their own notices above.
+
+2. HOW TO ATTRIBUTE IN PRACTICE
+-------------------------------
+
+If you publish anything built on these files, a line like the following next to
+the result is enough:
+
+   Data: 調達ポータル / gBizINFO（経済産業省） / 行政事業レビュー見える化サイト /
+   国税庁法人番号公表サイト, compiled and processed by LoreaTec
+   (https://bizsearch.loreatec.jp/datasets). Processed data; not the original
+   government publication.
+
+3. WHAT IS NOT INCLUDED, AND WHY
+--------------------------------
+
+   - The full corporate-number registry (~5.8 million companies): obtain it
+     directly from the National Tax Agency.
+   - Prefectural construction-permit rosters (建設業許可): terms differ per
+     prefecture and several forbid redistribution.
+   - Personal data of any kind. Sole-proprietor names and addresses are not in
+     the upstream bulk data and are not here either.
+
+4. NO WARRANTY
+--------------
+
+The data is provided "as is", without warranty of any kind. It is a processed
+copy of public records and may contain extraction or matching errors; the
+predictions are statistical estimates, not announcements. For anything with
+legal or financial consequence, verify against the official source linked in
+the dataset card. LoreaTec accepts no liability for decisions taken on the
+basis of this data.
+
+Contact: info@loreatec.jp — https://loreatec.jp/e/