{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.cannon","code":"thing-q81103","url":"https://ver.cy/models/thing/q81103/","name":"cannon","alternateNames":["sundial cannon","2S15 Norov","T-13 tank destroyer","chicken gun","Oerlikon GDF series 35 mm twin gun mount","Bushmaster III","30-pounder long gun","lela","Bofors 25 mm gun m/32","M197","Bofors 120 mm m/50 gun","Bofors 57 mm Mk.1 gun"],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A cannon is a member of a class of artillery that fires projectiles using propellant at a low or flat trajectory, including historical muzzle-loading pieces of bronze or iron and later breech-loading artillery; cannons are treated here as historical, museum and technical objects, including ceremonial uses, without operational detail.","purpose":"Let an agent explain the history and general technology of cannons, describe museum pieces and ceremonial uses, support heritage and identification questions, and decline operational or manufacturing detail.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Large calibre","Propellant-fired","Historical significance","Regulated weapon"],"structure":{"bundles":[{"id":"boundaries","name":"Boundaries","description":"What can be discussed.","layers":[{"id":"scope","name":"Scope","description":"Scope of information.","findings":[{"id":"scope-finding","name":"Scope","description":"Scope.","questions":[{"text":"Is the request seeking operational, targeting or manufacturing detail, which must be declined?","kind":"boundary"},{"text":"Which historical or general information can be provided instead?","kind":"action"}]}]},{"id":"law","name":"Law","description":"Legal status.","findings":[{"id":"law-finding","name":"Law","description":"Legal status.","questions":[{"text":"Which laws govern ownership of historical cannons and replicas here?","kind":"provenance"},{"text":"Which entry fits firearms law?","kind":"action"}]}]}]},{"id":"history","name":"History","description":"Cannons in history.","layers":[{"id":"development","name":"Development","description":"Historical development.","findings":[{"id":"development-finding","name":"Development","description":"Development.","questions":[{"text":"How did cannons develop from early gunpowder weapons to modern artillery, according to historians?","kind":"provenance"},{"text":"How did they change warfare and fortification?","kind":"provenance"}]}]},{"id":"identify","name":"Identify","description":"Identifying a piece.","findings":[{"id":"identify-finding","name":"Identify","description":"Identification.","questions":[{"text":"What is this historical cannon, judging by its form, markings and provenance, according to museum references?","kind":"provenance"},{"text":"Which entry fits a specific piece?","kind":"action"}]}]}]},{"id":"heritage","name":"Heritage","description":"Museums and ceremony.","layers":[{"id":"museums","name":"Museums","description":"Museum pieces.","findings":[{"id":"museums-finding","name":"Museums","description":"Museums.","questions":[{"text":"Which notable cannons are held in museums and sites, and how are they conserved?","kind":"provenance"},{"text":"Which are famous?","kind":"provenance"}]}]},{"id":"ceremonial","name":"Ceremonial","description":"Ceremonial use.","findings":[{"id":"ceremonial-finding","name":"Ceremonial","description":"Ceremonial.","questions":[{"text":"How are cannons used in salutes, signals and ceremonies, and which safety rules apply to re-enactment?","kind":"provenance"},{"text":"Who is licensed to fire them?","kind":"provenance"}]}]}]},{"id":"other","name":"Other","description":"Non-weapon senses.","layers":[{"id":"devices","name":"Devices","description":"Sundial and test devices.","findings":[{"id":"devices-finding","name":"Devices","description":"Devices.","questions":[{"text":"What are sundial cannons and bird-strike test guns, and how do they work?","kind":"definition"},{"text":"Is a non-weapon device meant?","kind":"boundary"}]}]},{"id":"culture","name":"Culture","description":"Cannons in culture.","findings":[{"id":"culture-finding","name":"Culture","description":"Culture.","questions":[{"text":"How do cannons appear in art, literature, music and idiom?","kind":"provenance"},{"text":"Which entry fits a specific work?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Describe the history and museum context of cannons, citing historical sources.","Report the provenance and conservation status of historical pieces from collection records."],"mustNot":["Provide guidance on making, restoring to firing condition, loading or aiming cannons.","Help evade laws on weapons, black powder or firing in public.","Glorify warfare or present weapons as harmless entertainment.","Help move historic pieces in breach of heritage export rules."],"requiresHuman":["Ceremonial firing or re-enactment with live charges.","Acquisition or export of historic artillery."]},"ethics":{"considerations":["Cannons killed many people; museum presentation should respect victims.","Old pieces and powder can still injure handlers and spectators."],"affectedParties":["Spectators and re-enactors","Museum staff","Descendants of war victims"]},"owners":{"steward":"The museum, collector or armed force that holds it, under weapons and heritage law.","roles":[],"masterSystems":["Museum collection records","Heritage object registers"]},"relations":[{"target":"Q1246258","type":"parent","note":"registry parent class"},{"target":"Q1426145","type":"parent","note":"registry parent class"},{"target":"artillery gun","type":"related","note":"category"},{"target":"direct-fire gun","type":"related","note":"category"},{"target":"military division","type":"related","note":"organisational context"},{"target":"earthworks","type":"related","note":"fortifications"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.cannon","Wikidata: Q81103 (https://www.wikidata.org/wiki/Q81103)"]},"properties":{"applicability":"required","items":["Overall length:  m - Measured between the outermost ends of the documented assembly, specifying whether its carriage or mounting is included.","Mass:  kg - Determined from verified collection records or specialist weighing, specifying which components are included.","Overall width:  m - Measured across the widest part of the documented assembly for display and conservation records."]},"recognition":{"applicability":"required","items":["Large-calibre barrel and mount","Historical or modern artillery","A mortar fires at high angles; a howitzer is intermediate","A long barrel on a carriage or mount, of bronze, iron or steel."]},"capabilities":{"applicability":"required","items":["explain history and general technology","identify historical pieces","describe ceremonial and industrial uses","refuse operational or manufacturing detail"]},"hazards":{"applicability":"required","items":["Agents providing operational, targeting or manufacturing detail","Unsafe handling of historical pieces and black powder","Glorification of warfare"]},"interfaces":{"applicability":"required","items":["Firearms and weapons laws","Heritage protection for historical artillery","Export control regulations"]},"context":{"applicability":"required","items":["Historical and technical understanding of large guns.","historical muzzle-loading cannons","naval and fortress guns","modern autocannons and tank guns (general level only)","ceremonial and signal cannons","non-weapon devices such as sundial cannons and bird-strike test guns"]}},"sources":[{"title":"Wikidata item Q81103: cannon","url":"https://www.wikidata.org/wiki/Q81103","note":"identity and sense of the item"},{"title":"Wikipedia: Cannon","url":"https://en.wikipedia.org/wiki/Cannon","note":"general description of the item"}],"openQuestions":["Should historical and modern guns be separate entries?","How should museum catalogues be linked?","How should the operational boundary be enforced?"],"resources":{"spec":"/models/things/publications/thing-q81103/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q81103/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T21:52:34Z","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 2026-10-07T12:16:34+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}