GS2-ENR-01: free sample - full 2026-11-06 enriched file (679 companies) with signed manifest

README.md

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+---
+license: other
+language:
+  - ja
+tags:
+  - japan
+  - company-data
+  - corporate-registry
+  - open-data
+  - b2b-leads
+---
+
+# RegBase — Japan New-Company Sales List · Free Sample (2026-11-06, 679 companies)
+
+Japan's National Tax Agency (国税庁) publishes the national corporate registry as
+open data. Every day it announces new corporate-number assignments — but a large
+share of those announcements are **late publications of companies that were
+actually designated months or years earlier**. A raw "new registrations" file
+therefore mixes genuinely new companies with old ones.
+
+**RegBase's enriched list** keeps only the companies whose designation date is
+the publication date itself, and only the two standard operating forms
+(株式会社 / 合同会社). This dataset is the **complete free sample** of that
+product: the full one-day file for the 2026-11-06 publication — all 679
+companies, not a truncated extract.
+
+## How this sample was made (exclusion arithmetic, from the source data)
+
+The 2026-11-06 publication announced **1,404** new designations
+(処理区分 01). The filter removed:
+
+| Step | Records |
+| --- | --- |
+| New designations announced on 2026-11-06 | 1,404 |
+| Removed: designation date earlier than the publication date (late publications of older companies) | −673 |
+| Designated on the publication date itself | 731 |
+| Removed: entity types other than 株式会社 (301) / 合同会社 (305) | −52 |
+| **This sample (genuinely new companies)** | **679** |
+
+Kept by entity type: 株式会社 468, 合同会社 211. The full disclosure,
+including per-prefecture counts, is in `summary.md`.
+
+## Per-field fill counts (measured on the 679 records)
+
+| Field | Filled |
+| --- | --- |
+| Corporate number （法人番号） | 679 |
+| Company name （商号） | 679 |
+| Company name, kana （商号カナ） | 673 |
+| Entity type （法人種別） | 679 |
+| Designation date （指定年月日） | 679 |
+| Prefecture （都道府県） | 679 |
+| City / municipality （市区町村） | 679 |
+| Postal code （郵便番号） | 679 |
+| Street address （丁目・番地等） | 679 |
+
+The kana name is the only incomplete field: 6 companies have no kana reading
+in the source publication.
+
+## Files
+
+| File | Contents |
+| --- | --- |
+| `data/enriched_20261106.csv` | All 679 records. UTF-8, **no header row**, 9 columns (schema below). Byte-identical to the product file for 2026-11-06. |
+| `summary.md` | The product's own summary: filter conditions, the exclusion counts above, per-prefecture counts, column definitions (Japanese). |
+| `manifest.json` | Ed25519-signed verification manifest (regbase-manifest/1) covering the CSV and summary. |
+| `regbase-enriched-sample-2026-11-06.zip` | The sample package as a single download: CSV + summary + manifest + Japanese README. |
+
+## Schema (9 columns, in order)
+
+1. `corporate_number` — 13-digit corporate number （法人番号）; import as text to keep leading zeros
+2. `name` — company name （商号）
+3. `name_kana` — company name in katakana
+4. `entity_type` — entity type label （株式会社 / 合同会社）
+5. `assignment_date` — designation date (equals the publication date for every row)
+6. `prefecture` — prefecture of the registered address
+7. `city` — city / municipality
+8. `postal_code` — postal code
+9. `street_address` — street address （丁目・番地等）
+
+## Verify it yourself
+
+`manifest.json` is an Ed25519-signed manifest (format `regbase-manifest/1`).
+It lists the SHA-256 hash, byte size and record count of each file, so you can
+confirm the files are byte-for-byte what RegBase produced. The signature proves
+the files have not changed since signing and were signed with the RegBase key;
+it does not vouch for the accuracy of the underlying registry data, which
+follows the source publication.
+
+## The product
+
+This sample is one day. The product sells the same file per day (BOOTH) and as
+a monthly bundle (Coconala / note):
+
+- BOOTH (single day): https://regbase.booth.pm/items/9114539
+- Coconala (monthly bundle): https://coconala.com/services/4493766
+
+## Source and limits
+
+- Source: National Tax Agency corporate-number publication site
+  (https://www.houjin-bangou.nta.go.jp/), daily diff data for 2026-11-06.
+- No telephone numbers or email addresses: the source publication does not
+  contain them.
+- No industry/sector column exists in the source data; records cannot be
+  filtered by industry.