The optional starter pack contains example business data and documents for both challenges. Choose a municipality or region within the Province of Antwerp, and use your preferred data sources and tools. You can use, adapt or replace the files in the KBO and RAG folders. RAG is one possible approach. Record the sources you use.

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Optional starter pack · CSV, GeoJSON and nine PDFs

Optional starter pack · CSV, GeoJSON and nine PDFs

About 16 MB. Contents:

KBO/ — business-register sample (Challenge 1)

What this data is. Real enterprise and establishment records from Digitaal Vlaanderen's public VKBO service (VKBO ondernemingen en vestigingseenheden V3), which republishes the federal KBO register enriched with addresses from the Flemish address register. Filter: municipality = Schoten. Retrieved on 7 September 2026.

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Known data limitations

• It is a partial sample: the first 1,000 records of a paged response, not the complete register of Schoten, and not a list of 1,000 verified active businesses.

• It mixes 457 legal entities and 543 establishment units in one table. Establishments carry their parent enterprise number in Ondernemingsnr_maatsch_zetel; legal status is recorded on legal entities only.

• Import registry identifiers as text. Spreadsheets may remove their leading zeros if they are treated as numbers.

• Activity fields are sparse. The VAT activity code is empty for every row; an RSZ activity code exists for 81 rows.

• Most parent enterprises are outside the sample. Only 28 of the 543 establishments have their parent among these 1,000 rows.

• Some coordinates need validation. A few points fall well outside Schoten.

• Placeholder dates. In the GeoJSON, 1900-01-01 and 9999-12-31 mean "not set" or "open-ended", not real dates.

• The exact federal KBO snapshot date is not supplied. The publisher notes a lag of one to three days behind the federal register. </aside>

• Column guide (CSV)

Licence and attribution — KBO sample only. Published under the Flemish Modellicentie Gratis Hergebruik v1.0. Attribution required: "publieke KBO gegevens, verrijkt met adressen uit het Vlaamse Adressenregister." Dataset catalogue: VKBO ondernemingen en vestigingseenheden V3. More records: the metadata file contains the URL of the next page of 1,000. This licence covers the KBO sample only, not the PDFs below.

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Optional external sources — maps, business listings, permit records, websites — may need their own account, key or agreement. None are supplied with the pack.

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RAG/ — documents (Challenge 2)

Nine PDFs from municipal, provincial, Flemish and federal sources. Check each document's jurisdiction, date and status before using it.

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How to treat this collection

• It is incomplete: three municipal documents from one municipality, one provincial regulation and a handful of federal and Flemish documents. Most applicable legislation is not here.
• It mixes types: legislation (a bylaw, a fee regulation, a royal decree), guidance (VLAIO, FAVV, Omgevingsloket) and undated or historical material. Keep these distinctions in your metadata and show them in answers.
• Historical material is background, not evidence of current rules. Never let a HISTORICAL file answer a question about today without saying so.
• Check extractions against the original page. Text extraction can lose table formatting, section symbols (§), footnotes and the structure of council minutes.
• Licences differ per publisher. The open-data licence of the KBO sample does not cover these PDFs; check each publisher's terms before any reuse beyond the hackathon. </aside>

You can use these examples or choose other documents and data.

Next: Challenge 1 · Find the Real Businesses · Challenge 2 · Answer Like the Expert · Submission & Practical FAQ · back to PROV-AI · Participant Guide