{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.city","code":"thing-q515","url":"https://ver.cy/models/thing/q515/","name":"city","alternateNames":["labyrinth City","ideal city","fortified town","La Scarzuola","capital city wall","Austrian walled towns","lateran","citânia","closed city","Levitical city","host city","Kartah"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.PLC"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A large, permanent human settlement with a dense population and urban functions, usually with a legal status as a city or municipality granted under national law.","purpose":"Let an agent handle cities by legal status, boundaries, population, governance and services, and resolve the several definitions of a city (administrative, urban area, metropolitan).","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Legal city status differs by country","Administrative city, urban area and metropolitan area are different units","Has a local government","Capital status is a separate designation"],"structure":{"bundles":[{"id":"definition-and-boundaries","name":"Definition and boundaries","description":"What counts as the city.","layers":[{"id":"definition","name":"Definition","description":"Administrative, urban, metropolitan.","findings":[{"id":"definition-finding","name":"Definition used","description":"The definition behind a figure.","questions":[{"text":"Which definition of the city does this figure use?","kind":"provenance"},{"text":"How does it differ from the others?","kind":"measurement"}]}]},{"id":"status","name":"Legal status","description":"City status and capital.","findings":[{"id":"status-finding","name":"Legal status","description":"Legal status under national law.","questions":[{"text":"Does it have legal city status, and since when?","kind":"provenance"},{"text":"Is it a capital, and of what?","kind":"definition"}]}]}]},{"id":"population-and-economy","name":"Population and economy","description":"People and work.","layers":[{"id":"population","name":"Population","description":"Counts and density.","findings":[{"id":"population-finding","name":"Population","description":"Population with date and source.","questions":[{"text":"What is the population, as of when, from which source?","kind":"measurement"},{"text":"How is it changing?","kind":"measurement"}]}]},{"id":"economy","name":"Economy","description":"Main activities.","findings":[{"id":"economy-finding","name":"Economy","description":"Economic structure.","questions":[{"text":"What are its main economic activities?","kind":"definition"},{"text":"What is its role in the region?","kind":"definition"}]}]}]},{"id":"governance-and-services","name":"Governance and services","description":"Who runs it and what it provides.","layers":[{"id":"government","name":"Local government","description":"Council and mayor.","findings":[{"id":"government-finding","name":"Government","description":"Local government structure.","questions":[{"text":"How is the city governed, and who is the mayor?","kind":"provenance"},{"text":"Which services does it provide directly?","kind":"definition"}]}]},{"id":"services","name":"Services","description":"Transport, utilities, safety.","findings":[{"id":"services-finding","name":"Services","description":"Key services.","questions":[{"text":"How are transport, water and waste handled?","kind":"definition"},{"text":"How do residents contact the city?","kind":"action"}]}]}]},{"id":"place-and-history","name":"Place and history","description":"Where and how it grew.","layers":[{"id":"location","name":"Location","description":"Coordinates and region.","findings":[{"id":"location-finding","name":"Location","description":"Location and region.","questions":[{"text":"Where is the city, and in which region?","kind":"definition"},{"text":"Which identifiers locate it?","kind":"provenance"}]}]},{"id":"history","name":"History","description":"Founding and growth.","findings":[{"id":"history-finding","name":"History","description":"Key historical facts.","questions":[{"text":"When and how was it founded?","kind":"provenance"},{"text":"Has it had other names?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Report population, boundaries and status from official statistics, stating the definition and date.","Distinguish a city proper from its metropolitan area."],"mustNot":["Compare city populations measured under different definitions without saying so.","Present outdated boundaries or status as current.","Rank or describe neighbourhoods in ways that stigmatise their residents."],"requiresHuman":["Using city data in decisions on services or funding for residents."]},"ethics":{"considerations":["City data shapes where public money and services go."],"affectedParties":["Residents","Visitors","Local government"]},"owners":{"steward":"The municipal government under national law; national statistics offices count it.","roles":[],"masterSystems":["National statistics and administrative boundary registers"]},"relations":[{"target":"Q124250988","type":"parent","note":"registry parent class"},{"target":"Q56061","type":"parent","note":"registry parent class"},{"target":"Q7930989","type":"parent","note":"registry parent class"},{"target":"human settlement","type":"related","note":"alongside towns and villages"},{"target":"executive branch and municipal council","type":"related","note":"local government"},{"target":"road, building and other infrastructure","type":"contains","note":"urban fabric"},{"target":"metropolitan area","type":"related","note":"a larger statistical unit"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.city","Wikidata: Q515 (https://www.wikidata.org/wiki/Q515)","national municipality code: country-specific for example INSEE codes in France","UN/LOCODE: five characters trade and transport locations","GeoNames id: numeric gazetteer"]},"properties":{"applicability":"required","items":["population: 10000-37000000 people - depends on definition and country","population density: 1000-40000 people/km2"]},"recognition":{"applicability":"required","items":["Dense built-up area and street grid","City limits signs and municipal boundaries","Different definitions give different outlines on maps","Dense buildings, streets, public spaces and infrastructure, often with a historic centre and growing outskirts; historic cities may have walls."]},"capabilities":{"applicability":"required","items":["live, work and visit there","govern it, through a municipal council and mayor","measure it, by population and area under a stated definition","plan and build it, under planning law"]},"hazards":{"applicability":"required","items":["Comparing populations under different definitions","Confusing a city with its metropolitan area","Out-of-date boundaries after mergers"]},"interfaces":{"applicability":"required","items":["National law on municipalities and city status","EU-OECD Degree of Urbanisation definition","Planning and building law"]},"context":{"applicability":"required","items":["Concentrating people, work, services and culture in one place.","capital city","megacity","historic walled and fortified towns","planned and ideal cities","twin cities and conurbations"]}},"sources":[{"title":"Wikidata item Q515: city","url":"https://www.wikidata.org/wiki/Q515","note":"identity and sense of the item"},{"title":"Wikipedia: City","url":"https://en.wikipedia.org/wiki/City","note":"general description of the item"}],"openQuestions":["Should cities be instances with a stated definition for every figure?","How should mergers and renamings be tracked?","Which definition should the registry use by default?"],"resources":{"spec":"/models/things/publications/thing-q515/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q515/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T04:52:40Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:52:00+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}