{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T10:17:10Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 24.9,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0951d-f5e6-7320-8b5e-e36905d0c58b\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: hockey helmet\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1001 r",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 67.5,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0951d-f5f2-7aa2-9732-b370b51922e1\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: hockey helmet\nRegistry id: vr.tr.hockey-helmet\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none"
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:52:57+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "failure_modes_and_hazards",
        "owners",
        "standards_and_regulation",
        "visual_identification"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:29+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q2499551",
    "registryId": "vr.tr.hockey-helmet",
    "name": "hockey helmet",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q2499551/",
  "model": {
    "registry_id": "vr.tr.hockey-helmet",
    "name": "hockey helmet",
    "purpose": "Enable an agent to recognise a hockey helmet, assess its fit and service condition, and determine whether its documented configuration is suitable for an intended hockey activity.",
    "definition": "A hockey helmet is protective headgear worn in ice hockey and related forms of hockey, typically combining a rigid outer shell, an impact-attenuating liner and a retention system to reduce head injury risk from impacts.",
    "scope_statement": "This model owns the hockey helmet as a kind of protective headgear, including its impact-management construction, fit, retention, attachment interfaces, condition and evidence of permitted use, while keeping product variants and individual units distinct.",
    "in_scope": [
      "Helmet shell, impact-management liner and head coverage",
      "Sizing, adjustment and retention systems",
      "Interfaces with cages, visors and other documented accessories",
      "Product identification, certification evidence and use restrictions",
      "Inspection, care, impact history and retirement decisions"
    ],
    "out_of_scope": [
      "Standalone cages, visors and mouthguards beyond their helmet interfaces",
      "Goalkeeper masks as a distinct protective equipment kind",
      "Medical diagnosis or treatment of head injuries",
      "Hockey rules beyond requirements governing helmet use",
      "Manufacturer product lines and individual helmet records as separate catalogue kinds"
    ],
    "distinguishing_features": [
      "Documentation identifies hockey as an intended activity; resemblance to a skating or cycling helmet is insufficient.",
      "The headgear combines a protective shell, an impact-management interior and a means of retaining it on the head.",
      "A cage or visor alone is face protection and does not constitute a hockey helmet.",
      "A helmet fitted with a cage must be distinguished from a purpose-built goalkeeper mask using its construction and manufacturer designation.",
      "The registered kind must be distinguishable from a named commercial model, a size variant and a serialised physical unit."
    ],
    "characteristics": [
      {
        "name": "Intended hockey discipline and wearer role",
        "kind": "category",
        "unit_or_values": "Documented discipline and role; unknown",
        "why_it_matters": "The name alone does not establish suitability for ice hockey, inline hockey or a particular player role."
      },
      {
        "name": "Shell and liner construction",
        "kind": "category",
        "unit_or_values": "Documented shell materials, liner materials and component arrangement; unknown",
        "why_it_matters": "Identifies the protective assembly and the construction-specific inspection needs."
      },
      {
        "name": "Declared head circumference range",
        "kind": "measurement",
        "unit_or_values": "cm, with manufacturer sizing method",
        "why_it_matters": "Supports initial size selection without treating circumference as proof of satisfactory fit."
      },
      {
        "name": "Helmet mass",
        "kind": "measurement",
        "unit_or_values": "g, with size and included attachments",
        "why_it_matters": "Makes comparisons meaningful across helmet sizes and face-protection configurations."
      },
      {
        "name": "Adjustment mechanism",
        "kind": "category",
        "unit_or_values": "Fixed size, tool-operated adjustment, tool-free adjustment or documented alternative",
        "why_it_matters": "Determines how fit is set and which locking features require inspection."
      },
      {
        "name": "Wearer fit assessment",
        "kind": "state",
        "unit_or_values": "Unassessed, satisfactory under documented procedure, unsatisfactory or uncertain",
        "why_it_matters": "A nominally correct size can still move excessively or create pressure points."
      },
      {
        "name": "Retention assembly condition",
        "kind": "state",
        "unit_or_values": "Unchecked, intact and functional, damaged, incomplete or uncertain",
        "why_it_matters": "Straps, fasteners and anchors must function together to retain the helmet."
      },
      {
        "name": "Face-protection compatibility",
        "kind": "relation",
        "unit_or_values": "Helmet variant linked to documented cage or visor, size and mounting hardware",
        "why_it_matters": "Physical attachment alone does not establish an acceptable protective configuration."
      },
      {
        "name": "Conformity evidence",
        "kind": "relation",
        "unit_or_values": "Exact helmet variant and configuration linked to standard edition, issuing body, certificate or mark evidence",
        "why_it_matters": "Supports a traceable assessment of requirements for the intended activity."
      },
      {
        "name": "Service disposition",
        "kind": "state",
        "unit_or_values": "Unassessed, eligible under documented criteria, withheld pending review or retired",
        "why_it_matters": "Turns inspection results and service history into an explicit use decision."
      }
    ],
    "affordances": [
      "Identify a helmet and retrieve instructions for its exact variant.",
      "Select a candidate size and guide a documented fit and retention check.",
      "Check a proposed cage or visor against documented mounting compatibility.",
      "Inspect the shell, liner, adjustment locks, straps and attachment points.",
      "Compare configuration-specific conformity evidence with intended-use requirements.",
      "Record care and impact history and determine whether further assessment or retirement is required."
    ],
    "agent_conduct": {
      "may": [
        "Inspect a hockey helmet for cracks, loose fittings, worn liners and expired certification.",
        "Help a player find the correct size and fit using the maker's guidance."
      ],
      "must_not": [
        "Approve a cracked, modified or uncertified helmet for play.",
        "Advise painting, drilling or adding parts that the maker says void certification.",
        "Share a player's concussion or medical history beyond those entitled to it."
      ],
      "requires_human": [
        "Clearing a player to return after a suspected concussion."
      ]
    },
    "ethics": {
      "considerations": [
        "Head injuries in hockey can cause lasting brain damage, especially in young players.",
        "Pressure to keep playing leads people to hide symptoms."
      ],
      "affected_parties": [
        "Players, including children",
        "Parents and coaches"
      ]
    },
    "owners": {
      "steward": "The player or team that owns it; the league sets equipment rules.",
      "master_systems": []
    },
    "visual_identification": [
      "A hard plastic shell with vents, foam liner and chin strap, covering the top and back of the head.",
      "Often fitted with a visor or cage and showing a certification sticker."
    ],
    "failure_modes_and_hazards": [
      "Cracked shells and compressed liners absorb less impact.",
      "A poorly fitted helmet can shift and expose the head."
    ],
    "standards_and_regulation": [
      "ASTM F1045, Standard Performance Specification for Ice Hockey Helmets, ASTM International.",
      "CSA Z262.1, Ice hockey helmets, CSA Group."
    ],
    "what_it_is_for": [
      "A hockey helmet is worn during ice hockey practice and competition where falls, collisions and impacts from equipment can occur.",
      "Its protective role depends on appropriate fit, retention, condition and compatibility with any attached face protection."
    ]
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q2499551: hockey helmet",
      "url": "https://www.wikidata.org/wiki/Q2499551",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Hockey helmet",
      "url": "https://en.wikipedia.org/wiki/Hockey_helmet",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "hockey-use-and-identity",
        "name": "Hockey use and identity",
        "description": "Establishes which hockey headgear this is and the activity for which it is intended.",
        "rationale": "Similar-looking helmets and masks can have different intended roles and requirements.",
        "layers": [
          {
            "id": "discipline-and-role",
            "name": "Discipline and role",
            "description": "Locates the helmet within its documented sporting use.",
            "findings": [
              {
                "id": "documented-hockey-use",
                "name": "Documented hockey use",
                "description": "Record the supported hockey disciplines and wearer roles without inferring them from appearance.",
                "questions": [
                  {
                    "text": "Which hockey disciplines and wearer roles does the manufacturer identify for this helmet?",
                    "kind": "definition",
                    "id": "documented-hockey-use-q01"
                  },
                  {
                    "text": "What documentation distinguishes this helmet from a goalkeeper mask or a helmet intended for another sport?",
                    "kind": "boundary",
                    "id": "documented-hockey-use-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "variant-identification",
            "name": "Variant identification",
            "description": "Connects a physical helmet to the correct product documentation.",
            "findings": [
              {
                "id": "traceable-helmet-variant",
                "name": "Traceable helmet variant",
                "description": "Capture identifying marks and variant details needed to avoid applying instructions for a different helmet.",
                "questions": [
                  {
                    "text": "Which manufacturer, model, size and production identifiers are readable on the helmet?",
                    "kind": "provenance",
                    "id": "traceable-helmet-variant-q01"
                  },
                  {
                    "text": "Which instructions and conformity records match those identifiers and the fitted configuration?",
                    "kind": "provenance",
                    "id": "traceable-helmet-variant-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "impact-management-assembly",
        "name": "Impact-management assembly",
        "description": "Describes the shell, liner and coverage that constitute the helmet's protective assembly.",
        "rationale": "Assessing a hockey helmet requires understanding its protective components and the limits of available performance evidence.",
        "layers": [
          {
            "id": "shell-liner-and-coverage",
            "name": "Shell, liner and coverage",
            "description": "Records the construction and extent of the protective head covering.",
            "findings": [
              {
                "id": "protective-component-arrangement",
                "name": "Protective component arrangement",
                "description": "Distinguish impact-management components from comfort padding and record their intended arrangement.",
                "questions": [
                  {
                    "text": "Which shell and liner components perform documented protective functions, and which primarily provide comfort or fit?",
                    "kind": "definition",
                    "id": "protective-component-arrangement-q01"
                  },
                  {
                    "text": "What head regions are covered when the helmet is positioned according to its instructions?",
                    "kind": "measurement",
                    "id": "protective-component-arrangement-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "performance-evidence",
            "name": "Performance evidence",
            "description": "Connects protective claims to tests and their stated limits.",
            "findings": [
              {
                "id": "tested-impact-behaviour",
                "name": "Tested impact behaviour",
                "description": "Record what tests establish for a specified configuration without converting laboratory results into an individual injury guarantee.",
                "questions": [
                  {
                    "text": "Which documented tests address impact attenuation or other protective behaviour for this helmet variant?",
                    "kind": "provenance",
                    "id": "tested-impact-behaviour-q01"
                  },
                  {
                    "text": "Which impact conditions, sizes, configurations and limitations bound those results?",
                    "kind": "boundary",
                    "id": "tested-impact-behaviour-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "head-fit-and-retention",
        "name": "Head fit and retention",
        "description": "Determines whether the helmet can be positioned, adjusted and retained correctly for a particular wearer.",
        "rationale": "Helmet size, head shape, adjustment and retention interact and require a wearer-specific assessment.",
        "layers": [
          {
            "id": "sizing-and-position",
            "name": "Sizing and position",
            "description": "Connects nominal sizing to actual helmet seating on the head.",
            "findings": [
              {
                "id": "wearer-specific-fit",
                "name": "Wearer-specific fit",
                "description": "Record head measurement, helmet position, contact and movement using the applicable fitting procedure.",
                "questions": [
                  {
                    "text": "What is the wearer's head circumference in centimetres using the manufacturer's specified measurement method?",
                    "kind": "measurement",
                    "id": "wearer-specific-fit-q01"
                  },
                  {
                    "text": "Does the helmet meet the documented fit checks for position, contact, movement and pressure points?",
                    "kind": "measurement",
                    "id": "wearer-specific-fit-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "adjustment-and-retention",
            "name": "Adjustment and retention",
            "description": "Examines adjustment locks and the assembly that holds the helmet on the wearer.",
            "findings": [
              {
                "id": "secured-fit-settings",
                "name": "Secured fit settings",
                "description": "Record whether adjusters, straps, closures and anchors can achieve and maintain the prescribed fit.",
                "questions": [
                  {
                    "text": "Which adjustment locks, strap anchors and closures must be engaged, and are they functional?",
                    "kind": "measurement",
                    "id": "secured-fit-settings-q01"
                  },
                  {
                    "text": "What documented retention check must be completed after adjustment or a wearer change?",
                    "kind": "action",
                    "id": "secured-fit-settings-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "face-protection-and-use-eligibility",
        "name": "Face protection and use eligibility",
        "description": "Connects helmet attachments and conformity evidence to the intended playing context.",
        "rationale": "A helmet's acceptable use can depend on the exact face protector, mounting arrangement and applicable competition requirements.",
        "layers": [
          {
            "id": "cage-and-visor-interface",
            "name": "Cage and visor interface",
            "description": "Models compatibility at the boundary between head and face protection.",
            "findings": [
              {
                "id": "documented-face-protection-configuration",
                "name": "Documented face-protection configuration",
                "description": "Record compatible protectors, brackets, fasteners and fitting requirements for the helmet variant.",
                "questions": [
                  {
                    "text": "Which cage or visor models and sizes are documented as compatible with this helmet?",
                    "kind": "provenance",
                    "id": "documented-face-protection-configuration-q01"
                  },
                  {
                    "text": "Which hardware, mounting positions and clearances does the documented installation require?",
                    "kind": "action",
                    "id": "documented-face-protection-configuration-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "certification-and-playing-context",
            "name": "Certification and playing context",
            "description": "Assesses evidence against the requirements that govern the proposed use.",
            "findings": [
              {
                "id": "configuration-specific-eligibility",
                "name": "Configuration-specific eligibility",
                "description": "Keep certification status, label condition and competition acceptance as distinct recorded facts.",
                "questions": [
                  {
                    "text": "Which standard editions and certification bodies are evidenced for the exact helmet and attachment configuration?",
                    "kind": "provenance",
                    "id": "configuration-specific-eligibility-q01"
                  },
                  {
                    "text": "What current jurisdiction, competition and age-category requirements govern the intended use, including any label or validity requirements?",
                    "kind": "boundary",
                    "id": "configuration-specific-eligibility-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "inspection-care-and-retirement",
        "name": "Inspection, care and retirement",
        "description": "Tracks deterioration, service history and the actions permitted by the helmet's instructions.",
        "rationale": "Appearance alone cannot resolve serviceability, and undocumented repairs or continued use after damage require explicit treatment.",
        "layers": [
          {
            "id": "condition-and-event-history",
            "name": "Condition and event history",
            "description": "Combines component inspection with known impacts and potentially damaging exposures.",
            "findings": [
              {
                "id": "helmet-serviceability-evidence",
                "name": "Helmet serviceability evidence",
                "description": "Record cracks, deformation, liner changes, loose hardware and retention defects alongside known or unknown event history.",
                "questions": [
                  {
                    "text": "What defects are visible or detectable in the shell, liner, adjusters, straps and attachment points?",
                    "kind": "measurement",
                    "id": "helmet-serviceability-evidence-q01"
                  },
                  {
                    "text": "What impacts, modifications or heat and chemical exposures are known, and which parts of the helmet's history remain unknown?",
                    "kind": "provenance",
                    "id": "helmet-serviceability-evidence-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "permitted-care-and-disposition",
            "name": "Permitted care and disposition",
            "description": "Maps instructions and inspection evidence to maintenance, withholding or retirement.",
            "findings": [
              {
                "id": "documented-service-actions",
                "name": "Documented service actions",
                "description": "Use model-specific instructions to determine cleaning, replacement-part and retirement actions.",
                "questions": [
                  {
                    "text": "Which cleaning methods, storage conditions and component replacements does the manufacturer permit?",
                    "kind": "action",
                    "id": "documented-service-actions-q01"
                  },
                  {
                    "text": "Which damage, impact-history, age or recall criteria require withholding or retiring this helmet?",
                    "kind": "action",
                    "id": "documented-service-actions-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "evidence-and-external-alignment",
        "name": "Evidence and external alignment",
        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
        "layers": [
          {
            "id": "reported-evidence",
            "name": "Reported evidence",
            "description": "Findings from the breadth pass, kept separate from the structural claims.",
            "findings": [
              {
                "id": "evidence-confidence-notes",
                "name": "Check these first",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "With no recorded sense, this description assumes ice hockey and related roller hockey; inclusion of integrated goaltender masks should be checked.",
                  "Standard identifiers are recalled, not researched; current editions, scope and competition-specific certification requirements need verification.",
                  "The circumference range is approximate and spans multiple product sizes; manufacturer sizing and fit instructions govern individual selection."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of hockey helmet this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-kinds",
                "name": "Kinds and varieties",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Player helmet without attached face protection",
                  "Player helmet with a partial visor",
                  "Player helmet with a full-face cage",
                  "Player helmet with a full-face transparent shield",
                  "Goaltender helmet-and-cage combination",
                  "Integrated goaltender mask"
                ],
                "questions": [
                  {
                    "id": "evidence-kinds-q01",
                    "text": "Which of these kinds and varieties hold for the sense of hockey helmet this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-identifiers",
                "name": "Identifiers and schemes",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  {
                    "scheme": "Manufacturer model and size designation",
                    "value_or_pattern": "Brand, model name or number, and size",
                    "note": "Identifies a product variant; it does not uniquely identify an individual helmet or establish certification."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-identifiers-q01",
                    "text": "Which of these identifiers and schemes hold for the sense of hockey helmet this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-standards-and-regulation",
                "name": "Standards and regulation",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "CSA Z262.1, Ice hockey helmets - CSA Group.",
                  "ASTM F1045, Standard Performance Specification for Ice Hockey Helmets - ASTM International."
                ],
                "questions": [
                  {
                    "id": "evidence-standards-and-regulation-q01",
                    "text": "Which of these standards and regulation hold for the sense of hockey helmet this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-real-world-use",
                "name": "Real-world use",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Head protection during organised and recreational ice hockey.",
                  "Head protection during roller or inline hockey.",
                  "Support for compatible cages, visors or full-face shields.",
                  "Specialised head and face protection for goaltenders."
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of hockey helmet this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-measurements",
                "name": "Typical measurements",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  {
                    "quantity": "Wearer head circumference accommodated by common player helmet sizes",
                    "typical_range": "Approximately 48-64 across youth and adult product sizes",
                    "unit": "cm"
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-measurements-q01",
                    "text": "Which of these typical measurements hold for the sense of hockey helmet this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-failure-modes-and-hazards",
                "name": "Failure modes and hazards",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Loose fit or an unsecured chin strap can allow displacement or loss of the helmet.",
                  "Cracked shells or damaged, compressed or deteriorated liners can impair impact protection.",
                  "Loose fasteners or incompatible face-protection attachments can compromise protection.",
                  "Exposed facial areas remain vulnerable when a helmet is used without full-face protection.",
                  "Concussion can occur despite wearing a correctly fitted helmet; a helmet does not eliminate brain or neck injury risk."
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of hockey helmet this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-regional-variation",
                "name": "Regional variation",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Canadian organised hockey commonly uses CSA-certified helmets; United States programmes commonly specify HECC-certified helmets.",
                  "Requirements for cages, shields and visors vary by governing body, age group and competition."
                ],
                "questions": [
                  {
                    "id": "evidence-regional-variation-q01",
                    "text": "Which of these regional variation hold for the sense of hockey helmet this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-neighbours",
                "name": "Neighbouring kinds and how to tell them apart",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  {
                    "name": "Helmet",
                    "difference": "The broader category includes head protection for other activities; a hockey helmet is designed for hockey-specific use and hazards."
                  },
                  {
                    "name": "Hockey face protector",
                    "difference": "A cage, visor or shield protects facial areas and is usually attached to a helmet rather than replacing its head-protective shell and liner."
                  },
                  {
                    "name": "Goaltender mask",
                    "difference": "An integrated goaltender mask combines specialised head and face protection; whether it falls under this registry entry requires a scope decision."
                  },
                  {
                    "name": "Field hockey penalty-corner face mask",
                    "difference": "This primarily protects the face during particular field hockey situations and is not equivalent to an ice hockey helmet."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of hockey helmet this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Does this registry entry include both ice-hockey and inline-hockey helmets, and where is its authoritative boundary with goalkeeper masks?",
    "Which current standards, issuing bodies and certification schemes apply across the intended jurisdictions and hockey disciplines?",
    "Which manufacturer and independent test sources support construction and performance distinctions without overstating injury protection?",
    "What documented size ranges, masses and face-protector compatibility rules are sufficiently representative to include at kind level?",
    "How do manufacturer instructions differ on post-impact retirement, service life, permitted repairs and helmets with unknown histories?"
  ],
  "statistics": {
    "bundles": 6,
    "layers": 11,
    "findings": 19,
    "questions": 29
  }
}
