Every source this project redistributes or derives from, the licence it carries, and how strongly that licence is established. This page states nothing it has not read, and marks what it has not.

Licence and re-use

This project refuses to state a confidence without a basis. From 2026-09-02 it refuses to state a licence without one too: every claim below carries where it came from, so a reader can weigh it rather than take it on trust.

primary — the page stating the licence was read, and its URL is recorded. inherited — a site-wide policy covers it and the dataset page is silent. asserted — believed, on a reading, with no page that states it. not applicable — no third party asserts a right here, and the reason is recorded rather than a licence given by default. The full evidence, one entry per source with the URL, the verbatim text and the retrieval date, is licence-evidence.json in the deposit.

The one marked asserted, published as asserted

Atlas’s own claim over resolution and reachability — the parts of the index that exist only because this project crawled — is CC-BY-4.0 on a basis this page calls asserted, and that word is doing real work.

In the EU, the protection over a database of this kind is more likely the sui generis right of Directive 96/9/EC than copyright. CC BY 4.0 does grant sui generis database rights explicitly — its Section 4, where version 3.0 did not — so the instrument is a reasonable reading of the licence text. But a reading of a licence text by someone who is not a lawyer is exactly what this project calls asserted when anyone else does it, and a DOI is immutable.

What would make it primary: one hour of a lawyer, before a deposit is cut. That has not happened yet.

Publishing this as asserted rather than as a flat CC-BY-4.0 claim is deliberate, not a hedge. The basis travels beside the claim, so a reader knows how strongly to weigh it, and a later correction becomes an erratum on a qualified claim rather than the retraction of one that claimed more than it knew. Stating the flat licence with no basis at all would have been the imprudent choice: it asserts the same thing and hides how strongly it is held.

Three things a licence name does not say

Twelve Overture records need Apache-2.0, not CDLA

Overture’s Places theme is not one licence: most contributing datasets carry CDLA-Permissive-2.0, but data sourced from Foursquare carries Apache-2.0. Of the 328 Overture places this index uses, 316 carry CDLA-Permissive-2.0 alone and 12 also carry Apache-2.0 through a Foursquare source.

Apache-2.0 §4(a) requires a copy of the licence text to travel with the data — satisfied: licences/LICENSE-Apache-2.0.txt ships in the archive. §4(d) requires preserving the full content of Foursquare’s own NOTICE — satisfied, as of 2026-09-12: licences/NOTICE-Foursquare.txt now ships in the archive beside the licence texts, verbatim. Its text also still travels inside licences.json and LICENCES.md, so a reader who never opens the standalone file still finds it.

The Puglia register has a twin under a different licence

Two records on the regional open-data portal cover the same subject, from the same holder — ARET — Pugliapromozione — under different licences: the live, rolling “Elenco delle Strutture Ricettive e delle Locazioni turistiche — progressivo” is CC-BY-4.0; a frozen snapshot, “Elenco delle Strutture Ricettive al 2022”, dated 2023-12-13, is IODL 2.0. Their attribution obligations differ, and a citation naming only the portal is ambiguous between them.

Atlas uses the live record, CC-BY-4.0. The two are not a portal error: a regional decree adopted CC BY 4.0 for new datasets published on the portal going forward and did not relicense what was already there, so the frozen 2022 snapshot keeps its earlier licence by design.

The decree explains why. The licence page is what makes it primary.

D.G.R. 28 marzo 2022, n. 422 is an atto di indirizzo — a policy directive, not a licence grant — and it says so of itself: it applies to new datasets, operates “nelle more dell’adeguamento” (in the interval before full alignment), and carries an express reservation for cases needing separate treatment. The decree is the reason the dataset carries CC BY 4.0. What makes the basis primary is the CKAN record itself, which states the licence directly — the decree is the second URL in the evidence, corroborating, not the first.

Contact data and processing

No source table entry covers a hotel’s phone number or email address, because none is served: this page is about the right to copy and redistribute data, not about processing personal data, and the two are governed separately. What is withheld, and on what basis the underlying crawl was conducted, is at /privacy.