Permanent project revision

Open Data Portal with Zero-Attribution Default

Revision 2026-08-15-baseline · effective 2026-08-15

Superseded. A later revision exists: 2026-08-20-source-dates-b8 →

unreviewed

Created the first structured Evidence Passport with 7 claims and 3 source dossiers.

sha256:dc0d4a04ad1906b172a5696379f02ba47e194da2e05aa00127a7bd17e8fae94a

Change set

  • add /evidencePassport — Added claim-level evidence mapping and source dossiers.
  • add /revisionHistory — Established a permanent, hash-addressed baseline revision.
7
of 7 claims mapped
3
source dossiers
0
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Claims, one by one

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-dcc2173f1bb39778 quantitative
published open data since mid-2018
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The city's own open-data page states that Dortmund has provided open data for free use since mid-2018.
Caveat
The city's page could not be read directly by our tools; the wording was confirmed via its search-indexed text.

Sources carrying this claim

  1. Stadt Dortmund — Open Data
Claim 2 clm-8aff4f57547d3da1 quantitative
relaunched its portal on 6 February 2024 with nearly 490 datasets
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The federal programme's article dates the rebuilt portal to 6 February 2024 with almost 490 datasets.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Smart City Dialog — Neues Open-Data-Portal Dortmund
Claim 3 clm-a0c048045ddc2e2d descriptive
built-in charts, combinable maps and a public API
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The article describes diagram views, maps combining several datasets, and an API for automated retrieval.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Smart City Dialog — Neues Open-Data-Portal Dortmund
Claim 4 clm-02c9a68c6930fe22 descriptive
financed through the federal Modellprojekte Smart Cities programme
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The article ties the portal rebuild to Dortmund's participation in the Modellprojekte Smart Cities programme.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Smart City Dialog — Neues Open-Data-Portal Dortmund
Claim 5 clm-8cdebca538cb0947 quantitative
823 datasets, and every one of them carries a licence: 539 under Datenlizenz Deutschland Zero, which waives attribution entirely, and 284 under the attribution variant
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Counted from the portal's public catalogue API on 15 August 2026: 823 datasets total, 539 licensed Datenlizenz Deutschland Zero 2.0, 284 Datenlizenz Deutschland Namensnennung 2.0, none unlicensed.
Caveat
A snapshot count; the catalogue changes as datasets are added.

Sources carrying this claim

  1. Open Data Portal Dortmund — catalogue API
Claim 6 clm-4bb66094b4a0ae68 descriptive
real-time parking-garage occupancy and current roadworks are the most requested data
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The article names real-time parking-garage occupancy and current/planned roadworks as the most requested datasets.
Caveat
The city's own popularity statement; no download statistics are published.

Sources carrying this claim

  1. Smart City Dialog — Neues Open-Data-Portal Dortmund
Claim 7 clm-6fe8e54cd5de4464 descriptive
a third of the catalogue keeps the attribution requirement
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
284 of 823 datasets carry the attribution variant of the Datenlizenz Deutschland — about a third of the catalogue, per the API count of 15 August 2026.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Open Data Portal Dortmund — catalogue API

Source dossiers and revision state

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-08-15-baseline effective 2026-08-15 · created 2026-08-15

Awaiting operator and domain-expert review; publication of this revision implies neither.

sha256:dc0d4a04ad1906b172a5696379f02ba47e194da2e05aa00127a7bd17e8fae94a
7
of 7 claims mapped
3
source dossiers
0
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Stadt Dortmund
Actor types
city-government
Funding model
grant
Funding description
Portal relaunch financed via the federal Modellprojekte Smart Cities programme
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

3 source dossiers

Smart City Dialog — Neues Open-Data-Portal Dortmund smart-city-dialog.de · 4 linked claims

Open original source ↗

Stable source ID
src-c9510e10c8dd84a9
Publisher
Name not classified · smart-city-dialog.de
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-15
Dossier created
2026-08-15
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Federal smart-city programme portal: relaunch 6 February 2024, nearly 490 datasets, charts/maps/API, Modellprojekte Smart Cities funding, parking and roadworks data most requested.

Descriptive only — not page/paragraph exact
Open Data Portal Dortmund — catalogue API open-data.dortmund.de · 2 linked claims

Open original source ↗

Stable source ID
src-3724c986dc159701
Publisher
Name not classified · open-data.dortmund.de
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-15
Dossier created
2026-08-15
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

The portal's public catalogue API; the 823-dataset total and the licence split (539 Datenlizenz Deutschland Zero 2.0, 284 attribution variant) were counted from it on 15 August 2026 and are recomputable by anyone.

Descriptive only — not page/paragraph exact
Stadt Dortmund — Open Data dortmund.de · 1 linked claim

Open original source ↗

Stable source ID
src-078e9268df7bf3e6
Publisher
Name not classified · dortmund.de
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-15
Dossier created
2026-08-15
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

City topic page (authority) stating open data has been published since mid-2018. The site blocks automated retrieval; the date was verified via the page's indexed wording.

Descriptive only — not page/paragraph exact
Known limits of this passport
  • Publisher names and source languages have not yet been classified; domains are recorded without guessing.
  • Existing source notes are descriptive locators, not page- or paragraph-exact citations.
  • A missing archive, publication date or content hash is shown as null rather than inferred.
  • The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.