Open Data Portal with Zero-Attribution Default
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page
✎ Updated 20 Aug 2026 Publication date recorded for 3 sources. What changed →
Dortmund has published open data since mid-2018 and relaunched its portal on 6 February 2024 with nearly 490 datasets, built-in charts, combinable maps and a public API, financed through the federal Modellprojekte Smart Cities programme. By mid-August 2026 the catalogue had grown to 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 of the same licence. The city says real-time parking-garage occupancy and current roadworks are the most requested data; beyond such popularity statements, no usage or impact evaluation of the portal has been published.
what does this mean?
The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →🎓 Lesson
On the licence ladder this atlas keeps, Dortmund sits near the top: nothing in the catalogue is unlicensed and the default waives attribution — rarer than it sounds, since most portals leave a licence-less remainder. Re-users still check per dataset, because a third of the catalogue keeps the attribution requirement.
Sources
Show your work What this page rests on and what it can’t tell you · all 7 claims with their sources · the forensic record
Evidence Passport · public beta 7 addressable claims, 3 source dossiers, one permanent baseline. The passport is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.
Inspect the claims, one by one — verbatim text, sources and caveats for all 7
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.
clm-dcc2173f1bb39778
quantitative
published open data since mid-2018
Sources carrying this claim
clm-8aff4f57547d3da1
quantitative
relaunched its portal on 6 February 2024 with nearly 490 datasets
Sources carrying this claim
clm-a0c048045ddc2e2d
descriptive
built-in charts, combinable maps and a public API
Sources carrying this claim
clm-02c9a68c6930fe22
descriptive
financed through the federal Modellprojekte Smart Cities programme
Sources carrying this claim
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
Sources carrying this claim
clm-4bb66094b4a0ae68
descriptive
real-time parking-garage occupancy and current roadworks are the most requested data
Sources carrying this claim
clm-6fe8e54cd5de4464
descriptive
a third of the catalogue keeps the attribution requirement
Sources carrying this claim
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders
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.
Awaiting operator and domain-expert review; publication of this revision implies neither.
sha256:d99978ee236e81ef6587534073eb7adaf5f7a70f02744f42c57f76f5d2eec2d2
- 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
- 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
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
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.
Open Data Portal Dortmund — catalogue API
- 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
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
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.
- Claims linked
Stadt Dortmund — Open Data
- 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
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
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.
- Claims linked
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.
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📎 Cite this project
1001 Smart Cities (2026). “Open Data Portal with Zero-Attribution Default” — Dortmund, Germany. The Smart City Atlas. https://1001smartcities.org/projects/dortmund-open-data/ (last verified 2026-08-15). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.