{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T20:12:02Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 2, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-05T19:00:00Z", "ingestedAt": "2026-10-05T20:50:19+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "revisions": [ { "at": "2026-10-07T11:14:54+00:00", "engine": "codex", "fields": [ "definition", "distinguishing_features", "visual_identification" ], "answering_review": "83370e6ee2b6f5b4f67ff4b25d34774b685d011cfc98f9e203b3624b92211468" } ], "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T12:16:29+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q173603", "registryId": "vr.tr.helmet", "name": "helmet", "version": "0.2.0-wave.2", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q173603/", "model": { "registry_id": "vr.tr.helmet", "name": "helmet", "purpose": "Let an agent explain helmet types and standards, help people choose, fit and replace helmets, explain legal requirements, and describe historical helmets and cultural exemptions.", "definition": "A helmet is protective headgear designed to shield the head from impact, penetration, falling objects or other hazards, worn in work, sport, transport and combat, from historical armour such as cabassets and boar-crested helmets to modern cycling, motorcycle, riding, mining and industrial helmets; certification and legal requirements vary by helmet type, intended use, period and jurisdiction.", "what_it_is_for": "Head protection.", "affordances": [ "choose a helmet type for an activity", "explain certification standards", "explain fit, care and replacement", "explain legal requirements and exemptions" ], "distinguishing_features": [ "Helmets are designed to provide protection against impact or other head hazards.", "Helmet designs vary with their intended activity.", "Some helmets are certified to applicable safety standards, but certification is not universal.", "Helmet use is legally required in many contexts." ], "appearance": "Rigid or padded head coverings with straps.", "visual_identification": [ "A protective shell and, in many modern designs, a liner are common visible features.", "Certification labels may be present on certified helmets but are not universal identifiers.", "Ordinary hats and caps do not establish protective helmet function." ], "physical_properties": [ { "quantity": "Mass", "unit": "kg", "typical_range": "", "note": "Weigh the helmet with its fitted liner, retention system and stated accessories." }, { "quantity": "Supported head circumference", "unit": "cm", "typical_range": "", "note": "Record the specified fitting interval and verify head circumference using the prescribed measurement position." }, { "quantity": "Shell thickness", "unit": "mm", "typical_range": "", "note": "Measure at defined shell locations using a method suitable for the material and construction." }, { "quantity": "Transmitted impact acceleration", "unit": "m/s2", "typical_range": "", "note": "Measure on an instrumented headform under the impact conditions specified for the helmet's intended use." } ], "families_and_kinds": [ "cycling and skating helmets", "motorcycle and riding helmets", "industrial and mining helmets", "sports helmets for climbing, skiing and contact sports", "historical and military helmets" ], "related_models": [ { "relation": "is a kind of", "target": "protective clothing", "why": "category" }, { "relation": "is a kind of", "target": "headgear", "why": "category" }, { "relation": "is related to", "target": "swimming", "why": "other sport safety context" }, { "relation": "is related to", "target": "supermini", "why": "road safety context" } ], "identifiers": [], "standards_and_regulation": [ "Standards such as EN 1078, ECE 22.06, Snell and ANSI Z89.1", "National helmet laws for motorcycles and bicycles", "Workplace head protection rules" ], "failure_modes_and_hazards": [ "Wrong helmet type for the activity", "Poor fit or damaged helmets", "Counterfeit certification" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Check that a helmet is the right type for the activity and carries the required certification mark.", "Report damage, age or a past impact that means a helmet should be replaced." ], "must_not": [ "Describe a helmet as protective for an activity it is not certified for.", "Approve a helmet that has taken an impact or has expired as fit for use.", "Sell counterfeit or uncertified helmets as certified.", "Modify a helmet, such as drilling or painting it with solvents, in ways that weaken it." ], "requires_human": [ "Allowing a worker or rider to proceed without a required helmet." ] }, "ethics": { "considerations": [ "Helmets prevent head injuries and deaths; false assurance is dangerous.", "Rules on helmets interact with religious headwear, such as turbans, and deserve respectful handling." ], "affected_parties": [ "Wearers", "Workers on sites", "Children cycling" ] }, "owners": { "steward": "The person who wears it; employers answer for helmets they provide.", "master_systems": [] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q173603: helmet", "url": "https://www.wikidata.org/wiki/Q173603", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Helmet", "url": "https://en.wikipedia.org/wiki/Helmet", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "choose", "name": "Choose", "description": "Right helmet.", "rationale": "Match the activity.", "layers": [ { "id": "type", "name": "Type", "description": "Helmet type.", "findings": [ { "id": "type-finding", "name": "Type", "description": "Type.", "questions": [ { "text": "Which helmet type and standard suit this activity?", "kind": "action" }, { "text": "Which certification label should it carry?", "kind": "provenance" } ] } ] }, { "id": "fit", "name": "Fit", "description": "Fitting.", "findings": [ { "id": "fit-finding", "name": "Fit", "description": "Fitting.", "questions": [ { "text": "How should the helmet be fitted and adjusted?", "kind": "action" }, { "text": "When must it be replaced, such as after an impact?", "kind": "provenance" } ] } ] } ] }, { "id": "law", "name": "Law", "description": "Requirements.", "rationale": "Rules vary.", "layers": [ { "id": "rules", "name": "Rules", "description": "Helmet laws.", "findings": [ { "id": "rules-finding", "name": "Rules", "description": "Laws.", "questions": [ { "text": "Is a helmet legally required for this activity here, and for whom?", "kind": "provenance" }, { "text": "What are the penalties?", "kind": "provenance" } ] } ] }, { "id": "exemptions", "name": "Exemptions", "description": "Religious exemptions.", "findings": [ { "id": "exemptions-finding", "name": "Exemptions", "description": "Exemptions.", "questions": [ { "text": "Which exemptions exist, such as for Sikh turban wearers, and how are they described neutrally?", "kind": "provenance" }, { "text": "Which alternatives are recognised?", "kind": "provenance" } ] } ] } ] }, { "id": "safety", "name": "Safety", "description": "Evidence and standards.", "rationale": "What helmets do.", "layers": [ { "id": "evidence", "name": "Evidence", "description": "Effectiveness.", "findings": [ { "id": "evidence-finding", "name": "Evidence", "description": "Effectiveness.", "questions": [ { "text": "What does research say about helmet effectiveness for this activity?", "kind": "provenance" }, { "text": "What are the limits of protection?", "kind": "boundary" } ] } ] }, { "id": "standards", "name": "Standards", "description": "Certification.", "findings": [ { "id": "standards-finding", "name": "Standards", "description": "Certification.", "questions": [ { "text": "What do the relevant standards test?", "kind": "provenance" }, { "text": "How can counterfeit certification be spotted?", "kind": "action" } ] } ] } ] }, { "id": "history", "name": "History", "description": "Helmets through time.", "rationale": "Heritage.", "layers": [ { "id": "historical", "name": "Historical", "description": "Historical helmets.", "findings": [ { "id": "historical-finding", "name": "Historical", "description": "Historical helmets.", "questions": [ { "text": "What are cabassets, boar-crested helmets and other historical types, according to museums?", "kind": "provenance" }, { "text": "Where can they be seen?", "kind": "provenance" } ] } ] }, { "id": "cultural", "name": "Cultural", "description": "Cultural headgear.", "findings": [ { "id": "cultural-finding", "name": "Cultural", "description": "Cultural headgear.", "questions": [ { "text": "How do culturally specific helmets and protective headgear differ, as their communities describe them?", "kind": "provenance" }, { "text": "Which entry fits?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should each helmet type be a separate entry?", "How should standards be linked?", "How should helmet laws be localised?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }