{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T10:43:20Z",
    "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": 1,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T16:30:00Z",
      "ingestedAt": "2026-10-05T13:27:53+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners",
        "standards_and_regulation"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:32+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q79529",
    "registryId": "vr.tr.chemical-substance",
    "name": "chemical substance",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.MAT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q79529/",
  "model": {
    "registry_id": "vr.tr.chemical-substance",
    "name": "chemical substance",
    "purpose": "Let an agent handle chemical substances by identity, properties, hazards, regulation and safe handling, without facilitating harmful uses.",
    "definition": "A form of matter with constant chemical composition and characteristic properties, such as an element or compound, identified by name, formula and registry numbers, and regulated for safe production, transport and use.",
    "what_it_is_for": "Chemistry, industry, products and safety regulation.",
    "affordances": [
      "identify substances by name, CAS number and formula",
      "read safety data sheets",
      "check regulatory status",
      "store and dispose of chemicals safely"
    ],
    "distinguishing_features": [
      "Defined composition",
      "Characteristic properties",
      "Registered and classified",
      "Hazards communicated by labels"
    ],
    "appearance": "Solids, liquids or gases with characteristic properties; usually in labelled containers.",
    "visual_identification": [
      "CAS numbers and hazard pictograms",
      "Safety data sheets",
      "Mixtures contain several substances"
    ],
    "physical_properties": [
      {
        "quantity": "Mass density",
        "unit": "kg/m3",
        "typical_range": "",
        "note": "Density is measured as mass per volume at a specified temperature, pressure and physical state."
      },
      {
        "quantity": "Melting temperature",
        "unit": "K",
        "typical_range": "",
        "note": "Melting temperature is measured at a stated pressure when the substance melts without decomposing."
      },
      {
        "quantity": "Boiling temperature",
        "unit": "K",
        "typical_range": "",
        "note": "Boiling temperature is measured at a stated pressure when the substance boils without decomposing."
      },
      {
        "quantity": "Solubility",
        "unit": "g/L",
        "typical_range": "",
        "note": "Solubility is measured as the equilibrium dissolved concentration in a specified solvent at stated conditions."
      }
    ],
    "families_and_kinds": [
      "elements",
      "compounds",
      "substances of very high concern",
      "natural and synthetic substances",
      "mixtures (related)"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "substance and chemical entity",
        "why": "category"
      },
      {
        "relation": "is identified by",
        "target": "CAS number",
        "why": "identifier"
      },
      {
        "relation": "is described by",
        "target": "safety data sheet",
        "why": "document"
      },
      {
        "relation": "is regulated by",
        "target": "REACH and CLP",
        "why": "regulation"
      }
    ],
    "identifiers": [
      {
        "scheme": "CAS Registry Number",
        "value_or_pattern": "numeric",
        "note": "substances"
      },
      {
        "scheme": "EC number",
        "value_or_pattern": "xxx-xxx-x",
        "note": "EU inventory"
      }
    ],
    "standards_and_regulation": [
      "EU REACH Regulation 1907/2006",
      "EU CLP Regulation 1272/2008",
      "UN GHS"
    ],
    "failure_modes_and_hazards": [
      "Mixing incompatible chemicals",
      "Poisoning from unlabelled containers",
      "Facilitating harmful synthesis"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Identify substances by name, formula and registry number, citing safety data sheets.",
        "Report hazard classes and handling rules from official classifications."
      ],
      "must_not": [
        "Assist in making or using any substance to harm people, animals or the environment.",
        "Mix, store or dispose of substances against their safety data sheets.",
        "Mislabel a substance or remove hazard labels.",
        "Ship or transfer substances in breach of transport or control rules."
      ],
      "requires_human": [
        "Handling, mixing or disposing of hazardous substances.",
        "Releasing a substance into the environment."
      ]
    },
    "ethics": {
      "considerations": [
        "Chemical exposure harms workers and neighbours, often long after the event.",
        "Hazard information must reach everyone who handles a substance."
      ],
      "affected_parties": [
        "Workers",
        "People near storage and transport",
        "Ecosystems"
      ]
    },
    "owners": {
      "steward": "The producer, importer or holder of the substance; chemical authorities keep registrations.",
      "master_systems": [
        "Chemical substance registers and inventories"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q79529: chemical substance",
      "url": "https://www.wikidata.org/wiki/Q79529",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Substance (chemistry)",
      "url": "https://en.wikipedia.org/wiki/Substance_%28chemistry%29",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "identity",
        "name": "Identity",
        "description": "Which substance.",
        "rationale": "Identifiers disambiguate.",
        "layers": [
          {
            "id": "names",
            "name": "Names",
            "description": "Identifiers.",
            "findings": [
              {
                "id": "names-finding",
                "name": "Names",
                "description": "Identifiers.",
                "questions": [
                  {
                    "text": "What are its name, formula and CAS number?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Are synonyms causing confusion?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "properties",
            "name": "Properties",
            "description": "Data.",
            "findings": [
              {
                "id": "properties-finding",
                "name": "Properties",
                "description": "Properties.",
                "questions": [
                  {
                    "text": "What are its key physical and chemical properties?",
                    "kind": "measurement"
                  },
                  {
                    "text": "From which database?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "hazards",
        "name": "Hazards",
        "description": "Safety.",
        "rationale": "Hazards must be known.",
        "layers": [
          {
            "id": "sds",
            "name": "SDS",
            "description": "Safety data sheet.",
            "findings": [
              {
                "id": "sds-finding",
                "name": "SDS",
                "description": "Safety data sheet.",
                "questions": [
                  {
                    "text": "What hazards and precautions does the safety data sheet list?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which pictograms apply?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "exposure",
            "name": "Exposure",
            "description": "Poisoning.",
            "findings": [
              {
                "id": "exposure-finding",
                "name": "Exposure",
                "description": "Exposure.",
                "questions": [
                  {
                    "text": "Has someone been exposed or swallowed the substance?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Which poison centre or emergency number should be called?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "regulation",
        "name": "Regulation",
        "description": "Law.",
        "rationale": "Substances are regulated.",
        "layers": [
          {
            "id": "status",
            "name": "Status",
            "description": "Registration.",
            "findings": [
              {
                "id": "status-finding",
                "name": "Status",
                "description": "Regulatory status.",
                "questions": [
                  {
                    "text": "Is it registered, restricted or authorised under REACH or equivalent?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is it a substance of very high concern?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "transport",
            "name": "Transport",
            "description": "Dangerous goods.",
            "findings": [
              {
                "id": "transport-finding",
                "name": "Transport",
                "description": "Transport rules.",
                "questions": [
                  {
                    "text": "Is it classified as dangerous goods for transport?",
                    "kind": "provenance"
                  },
                  {
                    "text": "What UN number applies?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "handling",
        "name": "Handling",
        "description": "Use and disposal.",
        "rationale": "Safe handling protects people.",
        "layers": [
          {
            "id": "storage",
            "name": "Storage",
            "description": "Compatibility.",
            "findings": [
              {
                "id": "storage-finding",
                "name": "Storage",
                "description": "Storage.",
                "questions": [
                  {
                    "text": "How should it be stored, and what must it be kept away from?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is ventilation needed?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "limits",
            "name": "Limits",
            "description": "No harmful uses.",
            "findings": [
              {
                "id": "limits-finding",
                "name": "Limits",
                "description": "Harmful use limits.",
                "questions": [
                  {
                    "text": "Does the request seek to make or use a substance to cause harm?",
                    "kind": "boundary"
                  },
                  {
                    "text": "How should the agent decline?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should substance classes be separate entries?",
    "How should registry data be linked?",
    "How should restricted substances be flagged?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}