{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T23:27:52Z",
    "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": 3,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T10:00:00Z",
      "ingestedAt": "2026-10-06T06:57:11+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:51:53+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q1086",
    "registryId": "vr.tr.ruthenium",
    "name": "ruthenium",
    "version": "0.2.0-wave.3",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.MAT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q1086/",
  "model": {
    "registry_id": "vr.tr.ruthenium",
    "name": "ruthenium",
    "purpose": "Let an agent identify ruthenium and its properties, relay production, uses, isotopes and history from reference sources, relay safety information, and distinguish it from other platinum group metals.",
    "definition": "A chemical element with symbol Ru and atomic number 44, a hard, rare, silvery-white transition metal of the platinum group, found native and in platinum ores and recovered as a by-product of nickel and platinum refining; ruthenium is used to harden platinum and palladium alloys, in electrical contacts, hard disk media, chip resistors, electrochemical anodes and catalysts, and has seven stable isotopes.",
    "what_it_is_for": "Alloys, electronics, catalysts and electrochemistry.",
    "affordances": [
      "relay properties and isotopes",
      "explain production and uses",
      "relay safety information",
      "distinguish from other platinum group metals"
    ],
    "distinguishing_features": [
      "Platinum group",
      "Hard and inert",
      "Many oxidation states",
      "Volatile toxic tetroxide"
    ],
    "appearance": "A hard, brittle, silvery-white metal.",
    "visual_identification": [
      "Element 44, symbol Ru",
      "Platinum group metal",
      "Rhodium and osmium are related platinum group metals"
    ],
    "physical_properties": [
      {
        "quantity": "atomic number",
        "typical_range": "44",
        "unit": "Z",
        "note": ""
      },
      {
        "quantity": "standard atomic weight",
        "typical_range": "101.07",
        "unit": "u",
        "note": ""
      },
      {
        "quantity": "melting point",
        "typical_range": "2334",
        "unit": "degrees C",
        "note": ""
      },
      {
        "quantity": "density",
        "typical_range": "12.45",
        "unit": "g/cm3",
        "note": ""
      }
    ],
    "families_and_kinds": [
      "ruthenium metal and native ruthenium",
      "ruthenium compounds such as the dioxide and tetroxide",
      "isotopes from ruthenium-87 to ruthenium-124, with seven stable and Ru-106 a fission product",
      "ruthenium in catalysts and electronics"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "platinum group metal",
        "why": "in registry terms"
      },
      {
        "relation": "is a kind of",
        "target": "transition metal",
        "why": "group 8"
      },
      {
        "relation": "is adjacent to",
        "target": "technetium",
        "why": "element 43"
      },
      {
        "relation": "is adjacent to",
        "target": "rhodium",
        "why": "element 45"
      }
    ],
    "identifiers": [
      {
        "scheme": "symbol",
        "value_or_pattern": "Ru",
        "note": ""
      },
      {
        "scheme": "CAS",
        "value_or_pattern": "7440-18-8",
        "note": ""
      }
    ],
    "standards_and_regulation": [
      "Chemical safety data sheets, especially for ruthenium tetroxide",
      "Precious metal trade rules",
      "Radiation rules for ruthenium-106"
    ],
    "failure_modes_and_hazards": [
      "Toxicity and volatility of ruthenium tetroxide",
      "Supply concentration",
      "Ru-106 releases from nuclear activities"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Explain ruthenium's properties and its uses in electronics, catalysts and wear-resistant alloys.",
        "Report on ruthenium supply and its recovery as a by-product of platinum and nickel refining, with sources.",
        "Describe documented releases of ruthenium-106 as reported by radiation monitoring bodies."
      ],
      "must_not": [
        "Give guidance on producing or handling ruthenium tetroxide outside a properly equipped laboratory.",
        "Speculate about the source of a radioactive release as if it were established.",
        "Recommend disposal of ruthenium compounds or catalysts in ordinary waste.",
        "Present ruthenium compounds as safe medicines beyond what trials have shown."
      ],
      "requires_human": [
        "Public statements attributing a radioactive release to a specific facility or state.",
        "Decisions about laboratory work with volatile ruthenium compounds."
      ]
    },
    "ethics": {
      "considerations": [
        "Volatile ruthenium compounds are toxic, so handling advice must not be casual.",
        "Attributing radioactive releases without evidence can inflame international disputes."
      ],
      "affected_parties": [
        "Laboratory and refinery workers",
        "People near nuclear facilities",
        "Public relying on monitoring data"
      ]
    },
    "owners": {
      "steward": "Nobody owns the element; refiners, laboratories and nuclear operators answer for what they hold.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q1086: ruthenium",
      "url": "https://www.wikidata.org/wiki/Q1086",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Ruthenium",
      "url": "https://en.wikipedia.org/wiki/Ruthenium",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "identify",
        "name": "Identify",
        "description": "What ruthenium is.",
        "rationale": "Identity.",
        "layers": [
          {
            "id": "properties",
            "name": "Properties",
            "description": "Properties.",
            "findings": [
              {
                "id": "properties-finding",
                "name": "Properties",
                "description": "Properties.",
                "questions": [
                  {
                    "text": "What are the physical and chemical properties of ruthenium?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is the question about ruthenium or another platinum group metal?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "isotopes",
            "name": "Isotopes",
            "description": "Isotopes.",
            "findings": [
              {
                "id": "isotopes-finding",
                "name": "Isotopes",
                "description": "Isotopes.",
                "questions": [
                  {
                    "text": "Which isotopes exist, and why is ruthenium-106 monitored?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which entry fits the specific isotope?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "source",
        "name": "Source",
        "description": "Occurrence and production.",
        "rationale": "Supply.",
        "layers": [
          {
            "id": "occurrence",
            "name": "Occurrence",
            "description": "Occurrence.",
            "findings": [
              {
                "id": "occurrence-finding",
                "name": "Occurrence",
                "description": "Occurrence.",
                "questions": [
                  {
                    "text": "Where does ruthenium occur, and how is it recovered from platinum and nickel ores?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits platinum group metal mining?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "supply",
            "name": "Supply",
            "description": "Supply.",
            "findings": [
              {
                "id": "supply-finding",
                "name": "Supply",
                "description": "Supply.",
                "questions": [
                  {
                    "text": "Who produces ruthenium, and how is it traded, with sources?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Which sources are cited?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "use",
        "name": "Use",
        "description": "Uses and safety.",
        "rationale": "Application.",
        "layers": [
          {
            "id": "uses",
            "name": "Uses",
            "description": "Uses.",
            "findings": [
              {
                "id": "uses-finding",
                "name": "Uses",
                "description": "Uses.",
                "questions": [
                  {
                    "text": "How is ruthenium used in alloys, electronics, catalysts and electrochemical anodes?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits a specific application?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "safety",
            "name": "Safety",
            "description": "Safety.",
            "findings": [
              {
                "id": "safety-finding",
                "name": "Safety",
                "description": "Safety.",
                "questions": [
                  {
                    "text": "What hazards does ruthenium present, especially the tetroxide?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is the user asking about a personal exposure, which needs a clinician or poison centre?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "History.",
        "rationale": "Context.",
        "layers": [
          {
            "id": "discovery",
            "name": "Discovery",
            "description": "Discovery.",
            "findings": [
              {
                "id": "discovery-finding",
                "name": "Discovery",
                "description": "Discovery.",
                "questions": [
                  {
                    "text": "How was ruthenium identified by Klaus in 1844, and how was it named?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "research",
            "name": "Research",
            "description": "Research.",
            "findings": [
              {
                "id": "research-finding",
                "name": "Research",
                "description": "Research.",
                "questions": [
                  {
                    "text": "What research uses ruthenium complexes, such as in catalysis and photochemistry?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits organometallic chemistry?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should isotopes be separate entries?",
    "How should reference data be linked?",
    "The registry entry has merged aliases naming isotopes and the native mineral; should they be split off?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}
