{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T22:19:13Z",
    "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": "2026-10-05T23:50:00Z",
      "ingestedAt": "2026-10-05T20:49:25+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "revisions": [
      {
        "at": "2026-10-06T22:31:02+00:00",
        "engine": "codex",
        "fields": [
          "definition"
        ],
        "answering_review": "f80770a17484c0401d5371c3efb46fa081cc227ccbeaec2718538cfe171697f5"
      }
    ],
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:25+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q11448",
    "registryId": "vr.tr.radioactivity",
    "name": "radioactivity",
    "version": "0.2.0-wave.2",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "ACT.PRC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q11448/",
  "model": {
    "registry_id": "vr.tr.radioactivity",
    "name": "radioactivity",
    "purpose": "Let an agent explain radioactivity and its types, describe natural and artificial sources and their measurement, give radiation protection guidance from official sources, and describe uses in medicine, dating and industry.",
    "definition": "The spontaneous emission of radiation from unstable atomic nuclei as they decay, including alpha, beta and gamma emission, occurring naturally in isotopes of elements such as uranium, thorium and potassium, including potassium-40, and artificially in isotopes produced in reactors and accelerators, measured in becquerels; radioactivity underlies dating methods, nuclear medicine and power, and requires radiation protection.",
    "what_it_is_for": "Spontaneous nuclear decay and its radiation.",
    "affordances": [
      "explain decay types and half-life",
      "describe sources and measurement",
      "give radiation protection guidance",
      "describe applications"
    ],
    "distinguishing_features": [
      "Nuclear origin",
      "Random decay with half-life",
      "Natural and artificial",
      "Measured in becquerels"
    ],
    "appearance": "Not visible; detected by instruments such as Geiger counters.",
    "visual_identification": [
      "Emission from unstable nuclei",
      "Alpha, beta, gamma",
      "X-rays are produced by electrons, not nuclei"
    ],
    "physical_properties": [],
    "families_and_kinds": [
      "natural radioactivity",
      "artificial and induced radioactivity",
      "environmental radioactivity such as radon",
      "radioactivity in medicine and industry",
      "radioactive waste"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "physical phenomenon",
        "why": "category"
      },
      {
        "relation": "is related to",
        "target": "nuclear fission",
        "why": "a related nuclear process"
      },
      {
        "relation": "is related to",
        "target": "lead",
        "why": "end of decay chains"
      },
      {
        "relation": "is related to",
        "target": "iron",
        "why": "radioactive iron isotopes"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "Radiation protection standards by the ICRP and national regulators",
      "Rules on radioactive sources and waste",
      "Radon guidance for buildings"
    ],
    "failure_modes_and_hazards": [
      "Radiation exposure and contamination",
      "Radon accumulation in buildings",
      "Agents providing weapons-relevant detail"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Explain radioactivity, decay and units such as becquerels for learners.",
        "Relay radiation readings and advice from official authorities."
      ],
      "must_not": [
        "Help anyone acquire or use radioactive material to harm people.",
        "Handle or move radioactive sources without authorization.",
        "Spread false alarms or false reassurance about radiation.",
        "Promote radioactive products as health remedies."
      ],
      "requires_human": [
        "Any action involving radioactive sources or contaminated sites."
      ]
    },
    "ethics": {
      "considerations": [
        "Radiation can harm health for decades and across generations.",
        "Nuclear medicine and dating methods benefit people when used safely."
      ],
      "affected_parties": [
        "People near sources",
        "Workers",
        "Patients"
      ]
    },
    "owners": {
      "steward": "Nobody owns the phenomenon; radiation protection authorities regulate sources.",
      "master_systems": [
        "Registers of radioactive sources kept by regulators"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q11448: radioactivity",
      "url": "https://www.wikidata.org/wiki/Q11448",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Radioactivity",
      "url": "https://en.wikipedia.org/wiki/Radioactivity",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "safety",
        "name": "Safety",
        "description": "Radiation protection.",
        "rationale": "Guidance.",
        "layers": [
          {
            "id": "exposure",
            "name": "Exposure",
            "description": "Exposure and protection.",
            "findings": [
              {
                "id": "exposure-finding",
                "name": "Exposure",
                "description": "Exposure.",
                "questions": [
                  {
                    "text": "What do radiation protection authorities advise about exposure from natural, medical and occupational sources?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is there a suspected exposure or contamination incident now?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "radon",
            "name": "Radon",
            "description": "Radon at home.",
            "findings": [
              {
                "id": "radon-finding",
                "name": "Radon",
                "description": "Radon.",
                "questions": [
                  {
                    "text": "How is radon measured and reduced in buildings, and what are the action levels here?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which areas are radon-prone?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "physics",
        "name": "Physics",
        "description": "How radioactivity works.",
        "rationale": "Science.",
        "layers": [
          {
            "id": "decay",
            "name": "Decay",
            "description": "Decay types and half-life.",
            "findings": [
              {
                "id": "decay-finding",
                "name": "Decay",
                "description": "Decay.",
                "questions": [
                  {
                    "text": "What are alpha, beta and gamma decay, and how do half-life and activity describe them?",
                    "kind": "definition"
                  },
                  {
                    "text": "What are decay chains?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "sources",
            "name": "Sources",
            "description": "Natural and artificial sources.",
            "findings": [
              {
                "id": "sources-finding",
                "name": "Sources",
                "description": "Sources.",
                "questions": [
                  {
                    "text": "Which natural and artificial sources of radioactivity exist, and how is background radiation composed?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How is induced radioactivity produced?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "use",
        "name": "Use",
        "description": "Applications.",
        "rationale": "Uses.",
        "layers": [
          {
            "id": "medicine",
            "name": "Medicine",
            "description": "Nuclear medicine.",
            "findings": [
              {
                "id": "medicine-finding",
                "name": "Medicine",
                "description": "Medicine.",
                "questions": [
                  {
                    "text": "How is radioactivity used in diagnosis and treatment, in general terms?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which safety measures apply to patients?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "dating",
            "name": "Dating",
            "description": "Dating and industry.",
            "findings": [
              {
                "id": "dating-finding",
                "name": "Dating",
                "description": "Dating.",
                "questions": [
                  {
                    "text": "How do radiometric dating methods work, and how is radioactivity used in industry?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is the request seeking weapons-relevant information, which must be declined?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "learn",
        "name": "Learn",
        "description": "History and teaching.",
        "rationale": "Context.",
        "layers": [
          {
            "id": "history",
            "name": "History",
            "description": "Discovery.",
            "findings": [
              {
                "id": "history-finding",
                "name": "History",
                "description": "History.",
                "questions": [
                  {
                    "text": "How was radioactivity discovered by Becquerel and the Curies, and how did understanding develop?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which units and their history matter?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "teach",
            "name": "Teach",
            "description": "Teaching.",
            "findings": [
              {
                "id": "teach-finding",
                "name": "Teach",
                "description": "Teaching.",
                "questions": [
                  {
                    "text": "How can radioactivity be taught safely with demonstrations and simulations?",
                    "kind": "action"
                  },
                  {
                    "text": "Which misconceptions arise?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should radon be a separate entry?",
    "How should protection standards be linked?",
    "How should the dual-use boundary be enforced?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}