Data & credits
Atsumia is built entirely on open geographic and encyclopaedic data. Here is exactly what comes from where.
Four sources, one card
- GeoNames
- The canonical catalogue: what a place is, where it is, and its stable identifier. Licensed CC BY 4.0.
- Wikidata
- Structured enrichment and the bridge to Wikipedia and Commons. Structured data is CC0.
- Wikipedia pageviews
- The popularity signal that determines rarity. Aggregated across language editions.
- Wikimedia Commons
- Card imagery. Every file carries its own licence, fetched and displayed per file.
What the catalogue actually contains
556,236 cards, drawn from 9,640,647 source records: 326,753 places, 116,778 species, 112,705 brands. The gap between the two numbers is the eligibility policy (v1) doing its work: a record with no freely licensed photograph, no usable source identifier, or no measurable audience does not become a card. It is re-checked each month rather than deleted, so the count moves in both directions.
Identifiers and pageview totals are the source data’s own — a GeoNames id, a Catalogue of Life taxon id, a Wikidata QID — and rarity is computed from 365 days of Wikipedia pageviews rather than typed in by anyone. Card imagery and image licences come from Wikipedia and Commons: 630,496 cards carry a picture, under 163 distinct licences, and the attribution shown on each card is that file’s own.
Image licensing
Commons hosts only freely reusable media, but the obligations differ per file — some require attribution, some are public domain, some are share-alike. Atsumia stores the author, licence name and licence URL for each file and shows them on the card, rather than assuming one licence for everything.
Sensitive and disputed geography
Geographic datasets contain offensive historical names, disputed territories and sensitive sites. Atsumia does not adjudicate political questions: it stores what the source says, keeps the provenance, and provides a reversible way to hide a card without destroying the imported record or anyone’s ownership history. Country and territory classification deserves a written policy before any broad international release.
Found a credit that is wrong or missing? Use “Report this card” on its detail page. Reports land in the Data workshop.