{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T08:37:36Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 22.0,
        "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: 01a094c2-c8ba-7051-b55d-3276a7ddc6ca\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: childhood disease\nSense to describe: (none recorded)\nDomain code: XCT.STA\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 10",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 68.2,
        "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: 01a094c2-c8ab-71e3-baa2-4e165c1fcdfb\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: childhood disease\nRegistry id: vr.tr.childhood-disease\nPlane / domain: XCT / XCT.STA\nRegistry definition: (none recorded)\nNames folded into this entr"
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:43:50+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners",
        "standards_and_regulation"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-08T19:09:48+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q1363926",
    "registryId": "vr.tr.childhood-disease",
    "name": "childhood disease",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "XCT.STA"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q1363926/",
  "model": {
    "registry_id": "vr.tr.childhood-disease",
    "name": "childhood disease",
    "purpose": "Enable an AI agent to recognise and assess a disease in its childhood context, preserve diagnostic uncertainty, and identify appropriate next actions using age-specific evidence.",
    "definition": "A childhood disease is a disease characteristically occurring or first manifesting during childhood, an age-associated grouping rather than a single diagnosis or a category restricted to infections.",
    "scope_statement": "This model owns the childhood-specific qualification, presentation, assessment, course and management constraints of a disease, while linking to the underlying disease model; childhood disease is treated as a grouping rather than a single diagnosis.",
    "in_scope": [
      "The stated basis for calling a disease a childhood disease, including age boundaries and evidence",
      "Age-dependent presentation, diagnostic criteria and differential assessment",
      "Childhood onset, disease activity, complications and developmental effects",
      "Age-specific prevention, management and escalation constraints",
      "Population evidence and continuity when childhood-onset disease persists into adulthood"
    ],
    "out_of_scope": [
      "The child's complete identity, health history and social circumstances",
      "Clinical encounters, referrals and episodes of care as administrative events",
      "Full models of individual diseases already represented elsewhere",
      "Drug formulation, prescribing and administration records",
      "Normal childhood development without a disease concern",
      "Healthcare institutions and public-health programmes as organisations"
    ],
    "distinguishing_features": [
      "Requires an explicit childhood association, such as characteristic onset or childhood-specific presentation; occurrence in one child alone does not establish that association.",
      "Identifies a disease or disease grouping rather than treating an isolated symptom, normal developmental variation or a care encounter as the disease.",
      "Separates age at onset from current age so a childhood-onset disease can remain identifiable after the person reaches adulthood.",
      "Does not assume childhood diseases are infectious, short-lived or restricted exclusively to children.",
      "Keeps a suspected diagnosis distinct from an established disease classification and from the child's current episode."
    ],
    "characteristics": [
      {
        "name": "Basis of childhood association",
        "kind": "category",
        "unit_or_values": "Characteristic childhood onset; childhood predominance; childhood-specific phenotype; broad paediatric usage; unresolved",
        "why_it_matters": "Makes the grouping criterion explicit and prevents unsupported inclusion."
      },
      {
        "name": "Applicable childhood age range",
        "kind": "measurement",
        "unit_or_values": "Lower and upper age bounds in days, months or years, with the defining authority and context",
        "why_it_matters": "Age boundaries can differ across diagnostic, research and service contexts."
      },
      {
        "name": "Underlying disease concept",
        "kind": "relation",
        "unit_or_values": "Link to a disease model or terminology concept, including terminology release and mapping status",
        "why_it_matters": "Preserves one source of truth and avoids treating the grouping as a specific coded diagnosis."
      },
      {
        "name": "Age at onset",
        "kind": "measurement",
        "unit_or_values": "Days, months or years; estimated interval; unknown",
        "why_it_matters": "Distinguishes childhood onset from later recognition or continuing disease."
      },
      {
        "name": "Diagnostic standing",
        "kind": "state",
        "unit_or_values": "Suspected; provisional; established under named criteria; excluded; unresolved",
        "why_it_matters": "Prevents symptoms or preliminary assessments from becoming definitive labels."
      },
      {
        "name": "Age-dependent presentation",
        "kind": "relation",
        "unit_or_values": "Manifestation linked to age or developmental stage, evidence source and applicability",
        "why_it_matters": "Supports recognition without assuming adult presentation applies to children."
      },
      {
        "name": "Disease activity and course",
        "kind": "state",
        "unit_or_values": "Disease-specific activity, severity and course categories, with assessment date and definition",
        "why_it_matters": "Separates diagnostic identity from the current state of an episode."
      },
      {
        "name": "Growth and developmental impact",
        "kind": "relation",
        "unit_or_values": "Affected developmental domain or growth measure, trajectory, assessment method and attribution confidence",
        "why_it_matters": "Captures childhood consequences while distinguishing observed association from established causation."
      },
      {
        "name": "Population frequency",
        "kind": "measurement",
        "unit_or_values": "Incidence or prevalence with denominator, age band, geography, observation period and case definition",
        "why_it_matters": "Makes claims of childhood predominance interpretable."
      },
      {
        "name": "Management evidence applicability",
        "kind": "relation",
        "unit_or_values": "Guideline or evidence source linked to disease subtype, age range, version and relevant exclusions",
        "why_it_matters": "Constrains proposed actions to the population addressed by the evidence."
      }
    ],
    "affordances": [
      "Determine whether a disease fits a stated childhood grouping and explain uncertain membership.",
      "Link an assessment to the underlying disease concept and versioned diagnostic criteria.",
      "Identify missing age-specific evidence needed to distinguish competing explanations.",
      "Track disease course alongside growth, development and participation effects.",
      "Surface applicable prevention, management or escalation guidance for qualified review.",
      "Preserve disease history and unresolved needs across transition to adult care."
    ],
    "agent_conduct": {
      "may": [
        "Explain childhood diseases and vaccination schedules from public health sources.",
        "Help parents find medical care and vaccination services."
      ],
      "must_not": [
        "Diagnose a child's illness in place of a clinician.",
        "Spread misinformation about vaccines or treatments.",
        "Disclose a child's health information without the consent of parents or the law.",
        "Advise parents to delay care for a child with danger signs."
      ],
      "requires_human": [
        "Any decision about a child's treatment or vaccination.",
        "Reporting a notifiable disease or suspected neglect."
      ]
    },
    "ethics": {
      "considerations": [
        "Children cannot decide for themselves; their health depends on adults' choices.",
        "Vaccine misinformation has brought back preventable diseases."
      ],
      "affected_parties": [
        "Children",
        "Parents and carers",
        "Schools and communities"
      ]
    },
    "owners": {
      "steward": "Nobody owns the category; public health authorities set vaccination and reporting rules.",
      "master_systems": [
        "National immunization registers",
        "Notifiable disease surveillance systems"
      ]
    },
    "standards_and_regulation": [
      "Convention on the Rights of the Child, Article 24, United Nations."
    ],
    "what_it_is_for": [
      "The term childhood disease is encountered in paediatrics, public health, education and family discussions about conditions associated with childhood.",
      "It helps organise age-related information about onset, symptoms and care, but does not identify a specific diagnosis or imply that adults cannot be affected."
    ],
    "failure_modes_and_hazards": [
      "Treating a condition as harmless because it is common in childhood can delay assessment of serious illness.",
      "Assuming that all childhood diseases are infectious can lead to inappropriate precautions and missed noninfectious conditions.",
      "Applying adult assumptions to children can overlook age-dependent symptoms, complications and care requirements."
    ],
    "facets_not_applicable": {
      "recognition": "Childhood disease is an age-associated grouping with no shared visual appearance that reliably identifies its members."
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q1363926: childhood disease",
      "url": "https://www.wikidata.org/wiki/Q1363926",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-de",
      "title": "Wikipedia (de): Kinderkrankheit",
      "url": "https://de.wikipedia.org/wiki/Kinderkrankheit",
      "url_status": "live",
      "checked_by": "wikidata-api sitelink",
      "what_it_supports": "general description of the item"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "childhood-classification",
        "name": "Childhood classification",
        "description": "Establishes what qualifies a disease for this grouping and how it relates to existing disease concepts.",
        "rationale": "The registry name supplies neither a definition of childhood nor a rule for disease membership.",
        "layers": [
          {
            "id": "membership-and-age",
            "name": "Membership and age",
            "description": "Makes the childhood association explicit.",
            "findings": [
              {
                "id": "childhood-membership-basis",
                "name": "Childhood membership basis",
                "description": "Record the proposed membership rule, applicable age range and supporting authority.",
                "questions": [
                  {
                    "text": "Does childhood disease mean characteristic childhood onset, childhood predominance, or any disease assessed in a child?",
                    "kind": "definition",
                    "id": "childhood-membership-basis-q01"
                  },
                  {
                    "text": "Which authority defines the applicable age boundaries, and for what clinical or research context?",
                    "kind": "provenance",
                    "id": "childhood-membership-basis-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "disease-concept-linkage",
            "name": "Disease concept linkage",
            "description": "Separates the childhood grouping from specific diagnoses and existing models.",
            "findings": [
              {
                "id": "underlying-concept-and-coding",
                "name": "Underlying concept and coding",
                "description": "Link to the underlying disease and record any terminology mapping without assuming the grouping has its own code.",
                "questions": [
                  {
                    "text": "Which existing disease or world model owns the underlying condition, and what childhood-specific content belongs here?",
                    "kind": "boundary",
                    "id": "underlying-concept-and-coding-q01"
                  },
                  {
                    "text": "Which ICD or SNOMED CT concept, release and jurisdictional edition support the mapping, and is it exact or broader?",
                    "kind": "provenance",
                    "id": "underlying-concept-and-coding-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "age-specific-recognition",
        "name": "Age-specific recognition",
        "description": "Organises childhood presentation and the evidence needed to assess a diagnosis.",
        "rationale": "Recognition must account for age and development while keeping diagnostic uncertainty visible.",
        "layers": [
          {
            "id": "presentation-and-development",
            "name": "Presentation and development",
            "description": "Relates manifestations to the child's age and developmental context.",
            "findings": [
              {
                "id": "developmentally-interpreted-manifestations",
                "name": "Developmentally interpreted manifestations",
                "description": "Record observed manifestations, their reporters and the basis for interpreting them as possible disease.",
                "questions": [
                  {
                    "text": "Which manifestations are relevant at this age, and how were they observed or reported by the child, caregiver or clinician?",
                    "kind": "measurement",
                    "id": "developmentally-interpreted-manifestations-q01"
                  },
                  {
                    "text": "What evidence distinguishes these manifestations from expected developmental variation or a different condition?",
                    "kind": "boundary",
                    "id": "developmentally-interpreted-manifestations-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "diagnostic-evidence",
            "name": "Diagnostic evidence",
            "description": "Connects diagnostic standing to applicable criteria and unresolved alternatives.",
            "findings": [
              {
                "id": "criteria-and-certainty",
                "name": "Criteria and certainty",
                "description": "Record the criteria used, their paediatric applicability and what remains unconfirmed.",
                "questions": [
                  {
                    "text": "Which issuing body and criteria version support the assessment, and do those criteria cover this age group?",
                    "kind": "provenance",
                    "id": "criteria-and-certainty-q01"
                  },
                  {
                    "text": "Which criteria are met, absent or unassessed, and which alternative explanations remain open?",
                    "kind": "measurement",
                    "id": "criteria-and-certainty-q02"
                  },
                  {
                    "text": "What further assessment is indicated by the applicable guidance before changing diagnostic standing?",
                    "kind": "action",
                    "id": "criteria-and-certainty-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "causes-and-population-patterns",
        "name": "Causes and population patterns",
        "description": "Captures disease-specific causes and evidence for patterns across childhood populations.",
        "rationale": "The label must not imply a shared cause or childhood predominance without evidence.",
        "layers": [
          {
            "id": "aetiology-and-susceptibility",
            "name": "Aetiology and susceptibility",
            "description": "Distinguishes established causes from associations relevant to childhood.",
            "findings": [
              {
                "id": "causal-evidence-in-childhood",
                "name": "Causal evidence in childhood",
                "description": "Record supported causal mechanisms and age-related susceptibility without assuming infectious origin.",
                "questions": [
                  {
                    "text": "What cause or mechanism is supported for the underlying disease, and what remains unknown?",
                    "kind": "definition",
                    "id": "causal-evidence-in-childhood-q01"
                  },
                  {
                    "text": "Which sources distinguish causal factors from associations involving age, development, inheritance or exposure?",
                    "kind": "provenance",
                    "id": "causal-evidence-in-childhood-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "population-distribution",
            "name": "Population distribution",
            "description": "Makes childhood frequency claims comparable and bounded.",
            "findings": [
              {
                "id": "age-bounded-frequency",
                "name": "Age-bounded frequency",
                "description": "Record incidence or prevalence with the population and ascertainment method needed to interpret it.",
                "questions": [
                  {
                    "text": "What incidence or prevalence estimate is available, with which age band, denominator, geography and observation period?",
                    "kind": "measurement",
                    "id": "age-bounded-frequency-q01"
                  },
                  {
                    "text": "What case definition and ascertainment method were used, and do comparable adult data support childhood predominance?",
                    "kind": "provenance",
                    "id": "age-bounded-frequency-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "course-and-developmental-consequences",
        "name": "Course and developmental consequences",
        "description": "Separates disease identity from episodes and tracks effects during growth and development.",
        "rationale": "A childhood disease can have a changing clinical course and consequences beyond immediate symptoms.",
        "layers": [
          {
            "id": "onset-episodes-and-activity",
            "name": "Onset, episodes and activity",
            "description": "Records the temporal distinctions needed to assess current state.",
            "findings": [
              {
                "id": "disease-timeline",
                "name": "Disease timeline",
                "description": "Distinguish first manifestations, diagnosis, individual episodes and current disease activity.",
                "questions": [
                  {
                    "text": "What are the known or estimated ages at first manifestation and diagnosis, and when did the current episode begin?",
                    "kind": "measurement",
                    "id": "disease-timeline-q01"
                  },
                  {
                    "text": "Which disease-specific definitions distinguish active disease, recurrence, remission, resolution and persistent effects?",
                    "kind": "definition",
                    "id": "disease-timeline-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "growth-function-and-participation",
            "name": "Growth, function and participation",
            "description": "Assesses consequences against the child's prior trajectory and relevant reference standards.",
            "findings": [
              {
                "id": "developmental-and-functional-effects",
                "name": "Developmental and functional effects",
                "description": "Record effects on growth, development and daily participation with attribution uncertainty.",
                "questions": [
                  {
                    "text": "What changes in growth, development, learning, play or daily function are documented, and against which baseline or reference?",
                    "kind": "measurement",
                    "id": "developmental-and-functional-effects-q01"
                  },
                  {
                    "text": "Which effects are attributed to the disease, treatment or other circumstances, and how strong is that attribution?",
                    "kind": "boundary",
                    "id": "developmental-and-functional-effects-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "childhood-action-and-continuity",
        "name": "Childhood action and continuity",
        "description": "Links disease state to age-appropriate guidance, prevention and continuing care needs.",
        "rationale": "Useful action depends on paediatric applicability, the child's participation and persistence beyond childhood.",
        "layers": [
          {
            "id": "prevention-management-and-escalation",
            "name": "Prevention, management and escalation",
            "description": "Identifies applicable guidance and the conditions that change the next action.",
            "findings": [
              {
                "id": "age-appropriate-action-constraints",
                "name": "Age-appropriate action constraints",
                "description": "Record guidance applicability and disease-specific triggers for review without embedding unsupported treatment instructions.",
                "questions": [
                  {
                    "text": "Which current guidance addresses prevention or management for this disease subtype and age group, and what exclusions apply?",
                    "kind": "provenance",
                    "id": "age-appropriate-action-constraints-q01"
                  },
                  {
                    "text": "Which documented changes or warning signs require escalation under that guidance, and to which service?",
                    "kind": "action",
                    "id": "age-appropriate-action-constraints-q02"
                  },
                  {
                    "text": "If communicable disease is established, which guidance governs contact precautions or return to childcare or school?",
                    "kind": "action",
                    "id": "age-appropriate-action-constraints-q03"
                  }
                ]
              }
            ]
          },
          {
            "id": "participation-and-transition",
            "name": "Participation and transition",
            "description": "Preserves appropriate involvement and continuity as age and care arrangements change.",
            "findings": [
              {
                "id": "continuing-childhood-onset-needs",
                "name": "Continuing childhood-onset needs",
                "description": "Identify disease-related communication, support and transfer needs through adolescence and adulthood.",
                "questions": [
                  {
                    "text": "How should the child and caregivers participate in disease-related decisions given developmental capacity and applicable local requirements?",
                    "kind": "action",
                    "id": "continuing-childhood-onset-needs-q01"
                  },
                  {
                    "text": "If disease or sequelae persist into adulthood, what history, monitoring needs and unresolved questions must transfer to the receiving team?",
                    "kind": "action",
                    "id": "continuing-childhood-onset-needs-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": [
                  "No sense is recorded: verify whether the registry intends the broad age-associated category or the narrower traditional usage referring to common childhood infections.",
                  "No single aetiology, diagnostic criteria, course or prevalence can be assigned to this umbrella term.",
                  "This is recall only; exact terminology mappings and applicable classification editions require verification."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of childhood disease 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": [
                  "Infectious diseases of childhood",
                  "Congenital and inherited diseases presenting in childhood",
                  "Childhood-onset autoimmune and inflammatory diseases",
                  "Childhood cancers"
                ],
                "questions": [
                  {
                    "id": "evidence-kinds-q01",
                    "text": "Which of these kinds and varieties hold for the sense of childhood disease 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": "ICD-10 / ICD-11",
                    "value_or_pattern": "Disease-specific category or code",
                    "note": "Issued by the World Health Organization; coding requires the particular disease and classification revision, rather than assuming one code for this umbrella term."
                  },
                  {
                    "scheme": "SNOMED CT",
                    "value_or_pattern": "Numeric concept identifier",
                    "note": "Specific disorders have concept identifiers; no identifier for this exact umbrella term is asserted here."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-identifiers-q01",
                    "text": "Which of these identifiers and schemes hold for the sense of childhood disease 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": [
                  "World Health Organization ICD-10 and ICD-11 provide disease classifications; they do not supply one diagnostic criterion set for all childhood diseases.",
                  "SNOMED International maintains SNOMED CT for clinical terminology."
                ],
                "questions": [
                  {
                    "id": "evidence-standards-and-regulation-q01",
                    "text": "Which of these standards and regulation hold for the sense of childhood disease 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": [
                  "Grouping conditions for paediatric education and clinical services",
                  "Organising surveillance by disease and childhood age group",
                  "Planning childhood prevention programmes, including vaccination for relevant infections",
                  "Studying childhood onset, disease course and outcomes into adulthood"
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of childhood disease 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": [
                  "Treating the umbrella label as a specific diagnosis",
                  "Assuming that diseases associated with childhood cannot affect adults",
                  "Equating childhood disease exclusively with infectious disease",
                  "Comparing prevalence estimates without matching disease definitions, age bands, populations and observation periods",
                  "Assuming that a disease beginning in childhood necessarily resolves before adulthood"
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of childhood disease 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": [
                  "The age boundary used for childhood differs across clinical services, statistical systems and jurisdictions.",
                  "The distribution of childhood infections varies with vaccination coverage, sanitation, exposure and local transmission.",
                  "Recorded disease frequency varies with access to diagnosis, screening and reporting systems."
                ],
                "questions": [
                  {
                    "id": "evidence-regional-variation-q01",
                    "text": "Which of these regional variation hold for the sense of childhood disease 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": "Childhood infection",
                    "difference": "Requires an infectious cause; childhood disease also encompasses non-infectious conditions."
                  },
                  {
                    "name": "Congenital disorder",
                    "difference": "Is present at birth, although recognition may occur later; a childhood disease may develop after birth."
                  },
                  {
                    "name": "Childhood-onset disease",
                    "difference": "Specifies when the disease begins; a disease commonly affecting children need not begin exclusively in childhood."
                  },
                  {
                    "name": "Paediatrics",
                    "difference": "Is the medical field concerned with child health, rather than a disease category."
                  },
                  {
                    "name": "Episode of care",
                    "difference": "Is a period of healthcare provision; a disease can exist before, between and after care episodes."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of childhood disease this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Does the registry intend a conventional grouping of characteristic childhood diseases or the broader category of all diseases occurring in children?",
    "Which age definition and authority should govern inclusion, and how should differing clinical and research definitions coexist?",
    "Does an existing Vercy world model already own this grouping or its paediatric disease context?",
    "Which terminology concepts, if any, map to this grouping without implying a specific diagnosis?",
    "Which authoritative paediatric sources should supply the initial criteria, population evidence and action guidance for linked diseases?"
  ],
  "statistics": {
    "bundles": 6,
    "layers": 11,
    "findings": 18,
    "questions": 30
  }
}
