{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T10:14:42Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 22.3,
        "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: 01a0951b-a20a-78d3-a796-fa68bfa1888b\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: Heptanoles\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1001 regi",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 72.0,
        "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: 01a0951b-a21c-77d2-8798-bf19044b432e\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: Heptanoles\nRegistry id: vr.tr.heptanoles\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nCo"
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:46:15+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "failure_modes_and_hazards",
        "owners",
        "standards_and_regulation",
        "visual_identification"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:31+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q5732068",
    "registryId": "vr.tr.heptanoles",
    "name": "Heptanoles",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.MAT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q5732068/",
  "model": {
    "registry_id": "vr.tr.heptanoles",
    "name": "Heptanoles",
    "purpose": "Enable an agent to identify a heptanol material, assess its isomer composition and condition, and determine its suitability for a specified use.",
    "definition": "Heptanoles is interpreted here as heptanols, a family of saturated, acyclic monohydric alcohols with molecular formula C7H16O whose members differ in carbon skeleton, hydroxyl-group position, or stereochemistry.",
    "scope_statement": "Owns the provisional interpretation of vr.tr.heptanoles as the heptanol family, including member identity, sample composition, physical condition and use constraints; whether the registry includes branched seven-carbon alcohols remains unresolved.",
    "in_scope": [
      "Heptanol family membership and distinctions among individual isomers",
      "Hydroxyl position, carbon skeleton and stereochemical identity",
      "Pure substances and mixtures of heptanol isomers, with measured impurities",
      "Physical properties tied to identified composition and measurement conditions",
      "Substance-specific hazards, regulatory identifiers and suitability evidence"
    ],
    "out_of_scope": [
      "Finished formulations containing heptanol as one ingredient",
      "Manufacturing plants and complete synthesis processes",
      "Heptane, heptanal, heptanones and heptanoic acids as independently modeled substances",
      "Alcohols with other carbon counts, multiple hydroxyl groups or unsaturated skeletons",
      "Exposure incidents and biological outcomes as independent events"
    ],
    "distinguishing_features": [
      "Under the provisional interpretation, require a saturated, acyclic seven-carbon alcohol structure with one hydroxyl group; molecular formula alone does not distinguish it from an ether.",
      "Resolve the hydroxyl position rather than treating 'heptanol' as uniquely identifying heptan-1-ol; NIST documents heptan-1-ol as a particular C7H16O substance. [NIST 1-Heptanol](https://webbook.nist.gov/cgi/cbook.cgi?ID=C111706&Mask=1C)",
      "Record stereochemistry separately from hydroxyl position; PubChem distinguishes (2S)-heptan-2-ol as a specific stereoisomer. [PubChem (2S)-heptan-2-ol](https://pubchem.ncbi.nlm.nih.gov/compound/2724897)",
      "Distinguish a single identified isomer from an isomer blend using composition evidence rather than a supplier's generic heptyl-alcohol label.",
      "Keep branched C7 alcohol membership provisional until the registry's intended meaning of 'Heptanoles' is established."
    ],
    "characteristics": [
      {
        "name": "Identity resolution",
        "kind": "state",
        "unit_or_values": "family only | positional isomer resolved | stereoisomer resolved | mixture characterized",
        "why_it_matters": "Determines which property and hazard records can legitimately apply."
      },
      {
        "name": "Carbon skeleton and hydroxyl position",
        "kind": "category",
        "unit_or_values": "structural representation; unbranched or branched; hydroxyl locant",
        "why_it_matters": "Separates candidate family members and prevents confusing heptanol isomers."
      },
      {
        "name": "Stereochemical composition",
        "kind": "measurement",
        "unit_or_values": "R/S designation where applicable; enantiomer fractions or enantiomeric excess in %",
        "why_it_matters": "Supports uses and identity claims sensitive to stereochemistry."
      },
      {
        "name": "Substance identifiers",
        "kind": "relation",
        "unit_or_values": "verified CAS RN, PubChem CID, EC number and structure identifier",
        "why_it_matters": "Connects the resolved member to external evidence without assigning one member's identifiers to the family."
      },
      {
        "name": "Isomer profile and assay",
        "kind": "measurement",
        "unit_or_values": "mass %, mole % or chromatographic area %, explicitly distinguished",
        "why_it_matters": "Determines whether the material is a defined isomer, a blend or an inadequately characterized sample."
      },
      {
        "name": "Water and organic impurities",
        "kind": "measurement",
        "unit_or_values": "mg/kg or mass %, with method and detection limits",
        "why_it_matters": "Water, residual solvents and oxygenated impurities can affect suitability and measured properties."
      },
      {
        "name": "Phase and thermal transitions",
        "kind": "measurement",
        "unit_or_values": "phase; melting/freezing and boiling temperatures in °C; pressure in kPa",
        "why_it_matters": "Supports condition assessment and processing decisions for the actual isomer or blend."
      },
      {
        "name": "Transport and partition properties",
        "kind": "measurement",
        "unit_or_values": "density in kg/m³; viscosity in mPa·s; vapor pressure in Pa; water solubility in g/L; temperature specified",
        "why_it_matters": "Supports transfer, phase separation and solvent-use assessments."
      },
      {
        "name": "Hazard and regulatory applicability",
        "kind": "relation",
        "unit_or_values": "classification source, jurisdiction, revision date, matched substance or mixture and applicable exposure limits",
        "why_it_matters": "Prevents transferring safety or permitted-use conclusions between different identities or grades."
      }
    ],
    "affordances": [
      "Resolve a heptanol label to a documented structure or explicitly unresolved family identity.",
      "Compare a sample's isomer profile, water content and impurities with a specified grade.",
      "Select physical-property evidence that matches the identified isomer, composition and operating conditions.",
      "Assess whether substituting one heptanol isomer or blend requires renewed qualification.",
      "Determine handling and use constraints from current evidence applicable to the actual material."
    ],
    "agent_conduct": {
      "may": [
        "Describe the heptanol isomers and their properties from scientific sources.",
        "Track heptanol stock, labels and safety data sheets in an inventory it manages."
      ],
      "must_not": [
        "Store or handle heptanols near open flames or ignition sources.",
        "Pour waste solvents into drains or the environment.",
        "Present heptanols as safe to drink or use on skin outside approved products.",
        "Mislabel isomers in a way that hides their hazards."
      ],
      "requires_human": [
        "Approving a new use in food flavouring, cosmetics or consumer products."
      ]
    },
    "ethics": {
      "considerations": [
        "Workers handling solvents deserve protection from exposure.",
        "Accurate labels protect anyone who later handles the chemical."
      ],
      "affected_parties": [
        "Laboratory and factory workers",
        "Consumers of products containing them"
      ]
    },
    "owners": {
      "steward": "The holder of the stock, such as a laboratory or chemical supplier.",
      "master_systems": []
    },
    "visual_identification": [
      "Clear, colourless oily liquids with a mild alcoholic or fruity smell."
    ],
    "failure_modes_and_hazards": [
      "Flammable liquids and vapours.",
      "Irritating to eyes and skin and harmful if swallowed."
    ],
    "standards_and_regulation": [
      "Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances (CLP), European Union."
    ],
    "what_it_is_for": [
      "Heptanols are encountered as organic laboratory reagents, solvents and intermediates in chemical synthesis.",
      "Individual members are used in preparing esters and other derivatives for applications that depend on the particular isomer.",
      "The family name alone is insufficient for selecting a material because hydroxyl position and carbon skeleton affect its behavior."
    ]
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q5732068: Heptanoles",
      "url": "https://www.wikidata.org/wiki/Q5732068",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Heptanol",
      "url": "https://en.wikipedia.org/wiki/Heptanol",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "heptanol-family-identity",
        "name": "Heptanol family identity",
        "description": "Establish what the registry name denotes and how a material belongs to it.",
        "rationale": "The undefined plural label cannot safely be reduced to a single substance record.",
        "layers": [
          {
            "id": "registry-meaning",
            "name": "Registry meaning",
            "description": "Resolve the intended chemical scope of Heptanoles.",
            "findings": [
              {
                "id": "family-boundary",
                "name": "Family boundary",
                "description": "Maintain an explicit provisional boundary until the originating registry evidence resolves membership.",
                "questions": [
                  {
                    "text": "Does the originating record mean unbranched heptanols, all saturated acyclic C7 monohydric alcohols, or a particular commercial material?",
                    "kind": "definition",
                    "id": "family-boundary-q01"
                  },
                  {
                    "text": "Which originating identifier, language label or source establishes that interpretation?",
                    "kind": "provenance",
                    "id": "family-boundary-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "member-resolution",
            "name": "Member resolution",
            "description": "Identify the structure represented by a specific record or sample.",
            "findings": [
              {
                "id": "structure-and-stereochemistry",
                "name": "Structure and stereochemistry",
                "description": "Resolve carbon connectivity, hydroxyl position and any specified stereochemistry before attaching member-level evidence.",
                "questions": [
                  {
                    "text": "What structure establishes the carbon skeleton and hydroxyl position?",
                    "kind": "definition",
                    "id": "structure-and-stereochemistry-q01"
                  },
                  {
                    "text": "Is stereochemistry specified, measured, racemic or unresolved?",
                    "kind": "measurement",
                    "id": "structure-and-stereochemistry-q02"
                  },
                  {
                    "text": "Do the CAS RN, PubChem CID and EC number identify that same structure and stereochemical scope?",
                    "kind": "provenance",
                    "id": "structure-and-stereochemistry-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "heptanol-sample-composition",
        "name": "Heptanol sample composition",
        "description": "Describe what a particular material contains beyond its nominal name.",
        "rationale": "An isomer label or total alcohol assay does not establish isomer purity or fitness for use.",
        "layers": [
          {
            "id": "isomer-distribution",
            "name": "Isomer distribution",
            "description": "Separate nominal identity from measured component proportions.",
            "findings": [
              {
                "id": "isomer-profile",
                "name": "Isomer profile",
                "description": "Record resolved heptanol components, unknown peaks and the basis used to express composition.",
                "questions": [
                  {
                    "text": "Which heptanol isomers are detected, and what are their quantified proportions?",
                    "kind": "measurement",
                    "id": "isomer-profile-q01"
                  },
                  {
                    "text": "Does the analytical method resolve relevant positional isomers and, where needed, enantiomers?",
                    "kind": "measurement",
                    "id": "isomer-profile-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "grade-and-impurities",
            "name": "Grade and impurities",
            "description": "Assess non-target components against the intended heptanol grade.",
            "findings": [
              {
                "id": "impurity-acceptance",
                "name": "Impurity acceptance",
                "description": "Treat water and organic impurity limits as explicit acceptance criteria supported by batch evidence.",
                "questions": [
                  {
                    "text": "What water, residual solvent and other organic impurity concentrations were measured, with what detection limits?",
                    "kind": "measurement",
                    "id": "impurity-acceptance-q01"
                  },
                  {
                    "text": "Which specification defines acceptable assay and impurity limits for this use?",
                    "kind": "boundary",
                    "id": "impurity-acceptance-q02"
                  },
                  {
                    "text": "Does the certificate of analysis refer to this batch and distinguish measured values from specification limits?",
                    "kind": "provenance",
                    "id": "impurity-acceptance-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "isomer-specific-physical-behavior",
        "name": "Isomer-specific physical behavior",
        "description": "Connect observable state and physical constants to identified heptanol composition.",
        "rationale": "A family-wide boiling point or solubility would conceal differences among members and mixtures.",
        "layers": [
          {
            "id": "phase-and-volatility",
            "name": "Phase and volatility",
            "description": "Establish phase behavior under stated temperature and pressure.",
            "findings": [
              {
                "id": "conditional-thermal-properties",
                "name": "Conditional thermal properties",
                "description": "Attach thermal transitions and vapor-pressure data to a resolved substance or characterized blend.",
                "questions": [
                  {
                    "text": "What phase is observed at the recorded temperature and pressure?",
                    "kind": "measurement",
                    "id": "conditional-thermal-properties-q01"
                  },
                  {
                    "text": "What melting/freezing, boiling and vapor-pressure data apply to this composition, and under which conditions?",
                    "kind": "measurement",
                    "id": "conditional-thermal-properties-q02"
                  },
                  {
                    "text": "Are these values measured for this member, estimated or borrowed from another heptanol?",
                    "kind": "provenance",
                    "id": "conditional-thermal-properties-q03"
                  }
                ]
              }
            ]
          },
          {
            "id": "flow-and-phase-partition",
            "name": "Flow and phase partition",
            "description": "Describe behavior relevant to transfer and contact with other liquids.",
            "findings": [
              {
                "id": "transport-and-solubility-evidence",
                "name": "Transport and solubility evidence",
                "description": "Record density, viscosity and solubility with the conditions needed to interpret them.",
                "questions": [
                  {
                    "text": "What density and viscosity apply at the intended transfer temperature?",
                    "kind": "measurement",
                    "id": "transport-and-solubility-evidence-q01"
                  },
                  {
                    "text": "What water solubility or phase-equilibrium evidence applies to this isomer and the actual solvent composition?",
                    "kind": "measurement",
                    "id": "transport-and-solubility-evidence-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "heptanol-handling-and-condition",
        "name": "Heptanol handling and condition",
        "description": "Connect material condition and handling decisions to substance-specific evidence.",
        "rationale": "Unknown isomer composition and changing sample condition can invalidate handling assumptions.",
        "layers": [
          {
            "id": "applicable-hazard-evidence",
            "name": "Applicable hazard evidence",
            "description": "Resolve safety information for the identified substance or mixture.",
            "findings": [
              {
                "id": "matched-safety-record",
                "name": "Matched safety record",
                "description": "Record applicable classifications and measured hazard properties without extending them automatically across the family.",
                "questions": [
                  {
                    "text": "Which current safety data sheet matches the isomer identity, composition and supplied grade?",
                    "kind": "provenance",
                    "id": "matched-safety-record-q01"
                  },
                  {
                    "text": "What flash-point method, hazard classifications and exposure limits are documented for that material?",
                    "kind": "measurement",
                    "id": "matched-safety-record-q02"
                  },
                  {
                    "text": "What handling controls follow from that evidence at the intended temperature and scale?",
                    "kind": "action",
                    "id": "matched-safety-record-q03"
                  }
                ]
              }
            ]
          },
          {
            "id": "storage-and-requalification",
            "name": "Storage and requalification",
            "description": "Assess whether storage history has altered material suitability.",
            "findings": [
              {
                "id": "condition-change",
                "name": "Condition change",
                "description": "Use storage history and analytical changes to determine whether the material needs renewed qualification.",
                "questions": [
                  {
                    "text": "What container compatibility, storage conditions and incompatible materials are documented for this heptanol?",
                    "kind": "provenance",
                    "id": "condition-change-q01"
                  },
                  {
                    "text": "Have water content, impurity profile or appearance changed relative to the accepted batch condition?",
                    "kind": "measurement",
                    "id": "condition-change-q02"
                  },
                  {
                    "text": "Which deviations require retesting or withholding the material from its intended use?",
                    "kind": "action",
                    "id": "condition-change-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "heptanol-use-qualification",
        "name": "Heptanol use qualification",
        "description": "Determine whether a particular heptanol member and grade meet a proposed task.",
        "rationale": "Shared family membership does not establish functional interchangeability or permission for a use.",
        "layers": [
          {
            "id": "functional-fit",
            "name": "Functional fit",
            "description": "Relate heptanol identity and measured properties to task requirements.",
            "findings": [
              {
                "id": "isomer-sensitive-selection",
                "name": "Isomer-sensitive selection",
                "description": "Make requirements for isomer identity, purity and physical behavior explicit before selecting or substituting material.",
                "questions": [
                  {
                    "text": "Does the task require a particular hydroxyl position, stereochemical composition or solvent-property range?",
                    "kind": "boundary",
                    "id": "isomer-sensitive-selection-q01"
                  },
                  {
                    "text": "What evidence establishes that this batch meets those requirements?",
                    "kind": "provenance",
                    "id": "isomer-sensitive-selection-q02"
                  },
                  {
                    "text": "What validation is required before replacing it with another heptanol isomer or blend?",
                    "kind": "action",
                    "id": "isomer-sensitive-selection-q03"
                  }
                ]
              }
            ]
          },
          {
            "id": "jurisdiction-and-use-status",
            "name": "Jurisdiction and use status",
            "description": "Attach regulatory conclusions to the precise material and proposed application.",
            "findings": [
              {
                "id": "specific-use-eligibility",
                "name": "Specific-use eligibility",
                "description": "Keep inventory identity, hazard classification and application-specific eligibility distinct.",
                "questions": [
                  {
                    "text": "Which jurisdiction and intended application govern the eligibility assessment?",
                    "kind": "boundary",
                    "id": "specific-use-eligibility-q01"
                  },
                  {
                    "text": "Which authoritative record covers this exact substance identity and grade, and when was it checked?",
                    "kind": "provenance",
                    "id": "specific-use-eligibility-q02"
                  },
                  {
                    "text": "What unresolved identity or documentation gaps prevent a supported use decision?",
                    "kind": "action",
                    "id": "specific-use-eligibility-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "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": [
                  "Confirm whether the registry label means all saturated seven-carbon monohydric alcohols or only the four unbranched positional isomers.",
                  "Physical constants, hazard classifications and regulatory identifiers must be checked for each specific isomer and product composition.",
                  "This description is recalled knowledge; no sources were consulted."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of Heptanoles 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": [
                  "Heptan-1-ol",
                  "Heptan-2-ol",
                  "Heptan-3-ol",
                  "Heptan-4-ol",
                  "Branched-chain constitutional isomers",
                  "Individual stereoisomers where the structure is chiral"
                ],
                "questions": [
                  {
                    "id": "evidence-kinds-q01",
                    "text": "Which of these kinds and varieties hold for the sense of Heptanoles 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": "IUPAC nomenclature",
                    "value_or_pattern": "Heptan-1-ol, heptan-2-ol, heptan-3-ol and heptan-4-ol for the unbranched positional isomers",
                    "note": "Branched isomers require names specifying their carbon skeleton and hydroxyl-group position."
                  },
                  {
                    "scheme": "CAS Registry Number",
                    "value_or_pattern": "111-70-6",
                    "note": "Identifies heptan-1-ol specifically; it is not an identifier for the entire family."
                  },
                  {
                    "scheme": "Molecular formula",
                    "value_or_pattern": "C7H16O",
                    "note": "Shared by these alcohols and by constitutional isomers that are ethers; formula alone does not establish alcohol identity."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-identifiers-q01",
                    "text": "Which of these identifiers and schemes hold for the sense of Heptanoles 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": [
                  "Selected isomers serve as organic solvents.",
                  "Selected isomers serve as intermediates in organic synthesis, including ester preparation."
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of Heptanoles 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": "Molar mass",
                    "typical_range": "Approximately 116.20",
                    "unit": "g/mol"
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-measurements-q01",
                    "text": "Which of these typical measurements hold for the sense of Heptanoles 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": [
                  "Combustibility creates a fire hazard; flash point and formal classification depend on the particular isomer.",
                  "Confusing isomers can lead to incorrect assumptions about physical properties, reactivity and handling requirements.",
                  "Water content and other impurities can compromise solvent performance or reactions."
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of Heptanoles 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": "Heptan-1-ol",
                    "difference": "A single unbranched member with the hydroxyl group on a terminal carbon, rather than the whole family."
                  },
                  {
                    "name": "Heptane",
                    "difference": "A hydrocarbon with no hydroxyl group or oxygen atom."
                  },
                  {
                    "name": "Heptanediols",
                    "difference": "Contain two hydroxyl groups rather than one."
                  },
                  {
                    "name": "Ethers with formula C7H16O",
                    "difference": "Have oxygen linking two carbon groups rather than an alcohol hydroxyl group."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of Heptanoles this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Does vr.tr.heptanoles denote only unbranched positional heptanols, a broader family including branched C7 alcohols, or a differently scoped source concept?",
    "Does an existing Vercy world model already cover this concept and therefore need to be linked instead of duplicated?",
    "Which authoritative identifiers establish the included members, and how should stereoisomers and isotopically labeled forms be represented within the registry's granularity?",
    "Which measured physical-property datasets are available for each included member and relevant isomer mixture?",
    "Which current safety classifications, exposure limits and application-specific regulatory records apply to the actual members and grades?"
  ],
  "statistics": {
    "bundles": 6,
    "layers": 11,
    "findings": 17,
    "questions": 34
  }
}
