{
    "model": {
        "rank": 5542,
        "code": "thing-q107184",
        "model_id": "vr.tr.cupric-sulfate",
        "name": "cupric sulfate",
        "purpose": "Enable an AI agent to identify cupric sulfate, assess its hydration, grade and condition, and determine whether a proposed use or handling action is appropriate.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.MAT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q107184/",
        "tier": 2,
        "score": 66,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 66,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q107184",
                "url": "https://www.wikidata.org/wiki/Q107184",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T22:35:35Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 23.3,
                        "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: 01a0884f-000c-74d2-b45b-478fce6f24ec\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: cupric sulfate\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 ",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 62.4,
                        "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: 01a0884e-ffff-74a3-a4c8-2dd274aebd45\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: cupric sulfate\nRegistry id: vr.tr.cupric-sulfate\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (no"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q107184",
                "registryId": "vr.tr.cupric-sulfate",
                "name": "cupric sulfate",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.MAT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q107184/",
            "model": {
                "registry_id": "vr.tr.cupric-sulfate",
                "name": "cupric sulfate",
                "purpose": "Enable an AI agent to identify cupric sulfate, assess its hydration, grade and condition, and determine whether a proposed use or handling action is appropriate.",
                "definition": "Cupric sulfate is copper(II) sulfate, an inorganic salt composed of Cu²⁺ and SO₄²⁻ ions with anhydrous formula CuSO₄, commonly encountered as the blue pentahydrate CuSO₄·5H₂O.",
                "scope_statement": "This model owns the identity and actionable material state of copper(II) sulfate under registry entry vr.tr.cupric-sulfate, including its anhydrous and hydrated forms, while distinguishing the substance from solutions, formulated products and manufacturing processes.",
                "in_scope": [
                    "Copper(II) sulfate identity, composition and form-specific identifiers",
                    "Hydration state, phase, water content and storage-related changes",
                    "Grade, assay, impurities and fitness for an intended use",
                    "Condition-dependent physical properties and chemical compatibility",
                    "Form-specific hazards, exposure assessment and jurisdictional identity"
                ],
                "out_of_scope": [
                    "Other copper salts, copper(I) compounds and basic copper sulfates",
                    "Complete models of solutions and formulated products containing copper(II) sulfate",
                    "Industrial manufacturing, crystallisation and recovery process designs",
                    "Agricultural application programmes and pesticide product authorisations",
                    "Clinical management of poisoning and ecosystem-level copper fate"
                ],
                "distinguishing_features": [
                    "Establish copper in the +2 oxidation state and sulfate as the counterion; a copper-containing material alone is insufficient identification.",
                    "Check that the nominal salt has a 1:1 copper-to-sulfate molar ratio, distinguishing it from basic copper sulfates containing additional hydroxide.",
                    "Identify water of crystallisation explicitly: anhydrous CuSO4 and CuSO4·5H2O share this registry concept but require different formula masses and mass-based dosing calculations.",
                    "Treat blue colour as supporting evidence for a hydrated material, not as proof of identity or purity; other copper compounds and solutions may also be blue.",
                    "Distinguish a discrete salt or hydrate from a copper sulfate solution or formulated product, whose concentration and additional constituents need separate records."
                ],
                "characteristics": [
                    {
                        "name": "Substance identity",
                        "kind": "category",
                        "unit_or_values": "Copper(II) sulfate; nominal anhydrous formula CuSO4",
                        "why_it_matters": "Separates the registered substance from other copper oxidation states, counterions and basic salts."
                    },
                    {
                        "name": "Hydration form",
                        "kind": "state",
                        "unit_or_values": "Anhydrous; pentahydrate; other identified hydrate; mixed or unresolved hydration",
                        "why_it_matters": "Controls formula mass, water contribution and interpretation of mass-based assay."
                    },
                    {
                        "name": "Form-specific identifiers",
                        "kind": "relation",
                        "unit_or_values": "CAS number, PubChem CID and EC number linked to an identified chemical form and authoritative record",
                        "why_it_matters": "Prevents identifiers for one hydrate or substance definition from being silently applied to another."
                    },
                    {
                        "name": "Copper sulfate assay",
                        "kind": "measurement",
                        "unit_or_values": "% by mass, with reporting basis stated as CuSO4, specified hydrate or elemental Cu",
                        "why_it_matters": "An assay cannot support acceptance or dosing unless its chemical and moisture basis is explicit."
                    },
                    {
                        "name": "Water content",
                        "kind": "measurement",
                        "unit_or_values": "% by mass, distinguishing crystallisation water from free moisture where measured",
                        "why_it_matters": "Helps detect hydration changes and reconcile measured composition with the declared form."
                    },
                    {
                        "name": "Grade and impurity profile",
                        "kind": "category",
                        "unit_or_values": "Declared grade and specification; individual impurities in mg/kg or % by mass",
                        "why_it_matters": "A grade label must be supported by limits and measurements relevant to the intended application."
                    },
                    {
                        "name": "Physical condition",
                        "kind": "state",
                        "unit_or_values": "Phase, colour, particle form, caking and visible contamination, with observation conditions",
                        "why_it_matters": "Changes can indicate moisture exposure, altered handling behaviour or a need for requalification."
                    },
                    {
                        "name": "Thermal and dissolution behaviour",
                        "kind": "measurement",
                        "unit_or_values": "Transition or decomposition temperature in °C; solubility with explicit units, solvent and temperature",
                        "why_it_matters": "Distinguishes dehydration and decomposition from melting, and supports preparation at specified conditions."
                    },
                    {
                        "name": "Hazard and exposure record",
                        "kind": "relation",
                        "unit_or_values": "Applicable SDS, GHS classification and exposure limits with jurisdiction, date, chemical basis and aerosol fraction",
                        "why_it_matters": "Links handling decisions to the actual form and applicable requirements rather than an undifferentiated chemical name."
                    }
                ],
                "affordances": [
                    "Verify a labelled sample against form-specific identity and composition evidence.",
                    "Convert a measured quantity between hydrate mass, anhydrous CuSO4 equivalent and elemental copper content using verified assay.",
                    "Accept, quarantine or request further testing of a lot against an intended-use specification.",
                    "Determine whether storage-related moisture or hydration changes require requalification.",
                    "Assess a proposed dissolution or transfer operation using solubility, compatibility and exposure evidence.",
                    "Route material to appropriate containment and disposal procedures using its current hazard record."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "chemical-identity-and-hydrate-boundary",
                        "name": "Chemical identity and hydrate boundary",
                        "description": "Establishes what counts as cupric sulfate and which chemical form is actually present.",
                        "rationale": "The common name can conceal hydration differences that affect identification, quantities and supporting records.",
                        "layers": [
                            {
                                "id": "copper-sulfate-identity",
                                "name": "Copper sulfate identity",
                                "description": "Separates copper(II) sulfate from neighbouring copper compounds and mixtures.",
                                "findings": [
                                    {
                                        "id": "cation-and-counterion-confirmation",
                                        "name": "Cation and counterion confirmation",
                                        "description": "Record evidence for copper(II), sulfate and the nominal salt stoichiometry; flag evidence of additional counterions or basic salts.",
                                        "questions": [
                                            {
                                                "text": "What analytical or traceable supplier evidence establishes copper(II) sulfate as the material's identity?",
                                                "kind": "definition",
                                                "id": "cation-and-counterion-confirmation-q01"
                                            },
                                            {
                                                "text": "Does the composition indicate CuSO4, a basic copper sulfate, another copper salt or a mixture requiring a separate material model?",
                                                "kind": "boundary",
                                                "id": "cation-and-counterion-confirmation-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "hydrate-and-identifier-resolution",
                                "name": "Hydrate and identifier resolution",
                                "description": "Connects the declared hydration form to its formula and external identity records.",
                                "findings": [
                                    {
                                        "id": "form-specific-identity-record",
                                        "name": "Form-specific identity record",
                                        "description": "Record hydration independently of the registry name and resolve identifiers against that form.",
                                        "questions": [
                                            {
                                                "text": "Is the material anhydrous CuSO4, CuSO4·5H2O, another identified hydrate or a mixture of hydration states?",
                                                "kind": "definition",
                                                "id": "form-specific-identity-record-q01"
                                            },
                                            {
                                                "text": "Which authoritative CAS, PubChem and EC records match the declared form, and where do their substance boundaries differ?",
                                                "kind": "provenance",
                                                "id": "form-specific-identity-record-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "composition-grade-and-quantity-basis",
                        "name": "Composition, grade and quantity basis",
                        "description": "Makes purity claims and material quantities interpretable for a specific use.",
                        "rationale": "Hydrate mass, anhydrous salt equivalent and elemental copper content are different quantities, while impurities can determine suitability.",
                        "layers": [
                            {
                                "id": "assay-and-water-accounting",
                                "name": "Assay and water accounting",
                                "description": "Establishes how measured salt, copper and water contents relate to the declared composition.",
                                "findings": [
                                    {
                                        "id": "explicit-assay-basis",
                                        "name": "Explicit assay basis",
                                        "description": "Require each assay and quantity conversion to state its formula basis, moisture treatment and measurement method.",
                                        "questions": [
                                            {
                                                "text": "Is the assay reported as elemental copper, anhydrous CuSO4 or a specified hydrate, and on an as-received or dry basis?",
                                                "kind": "measurement",
                                                "id": "explicit-assay-basis-q01"
                                            },
                                            {
                                                "text": "What hydration and assay evidence supports converting this lot's mass into moles of CuSO4 or mass of elemental copper?",
                                                "kind": "action",
                                                "id": "explicit-assay-basis-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "grade-and-contaminant-acceptance",
                                "name": "Grade and contaminant acceptance",
                                "description": "Relates the lot's specification and analytical results to its proposed application.",
                                "findings": [
                                    {
                                        "id": "use-specific-purity-evidence",
                                        "name": "Use-specific purity evidence",
                                        "description": "Record the governing grade specification, relevant impurity limits and lot-specific evidence rather than treating a grade name as sufficient.",
                                        "questions": [
                                            {
                                                "text": "Which specification defines the claimed grade, and is a certificate of analysis traceable to this lot?",
                                                "kind": "provenance",
                                                "id": "use-specific-purity-evidence-q01"
                                            },
                                            {
                                                "text": "Which limits for other metals, insoluble matter or other relevant contaminants must this lot meet for the intended use?",
                                                "kind": "measurement",
                                                "id": "use-specific-purity-evidence-q02"
                                            },
                                            {
                                                "text": "Should the lot be accepted, restricted or quarantined when a required impurity result is missing or exceeds its limit?",
                                                "kind": "action",
                                                "id": "use-specific-purity-evidence-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "hydration-physical-state-and-transformations",
                        "name": "Hydration, physical state and transformations",
                        "description": "Tracks condition changes and the evidence needed to interpret heating, storage and dissolution.",
                        "rationale": "A nominally unchanged copper sulfate lot can change hydration or handling properties, and thermal events must not be misreported as ordinary phase changes.",
                        "layers": [
                            {
                                "id": "storage-and-hydration-condition",
                                "name": "Storage and hydration condition",
                                "description": "Connects observed condition to moisture exposure and verified hydration state.",
                                "findings": [
                                    {
                                        "id": "condition-change-assessment",
                                        "name": "Condition change assessment",
                                        "description": "Record colour, caking, free moisture and storage history as signals requiring interpretation rather than definitive identity tests.",
                                        "questions": [
                                            {
                                                "text": "What changes in colour, particle condition or water content have occurred under the recorded temperature and humidity history?",
                                                "kind": "measurement",
                                                "id": "condition-change-assessment-q01"
                                            },
                                            {
                                                "text": "What test or acceptance criterion determines whether suspected hydration changes require relabelling, reassay or quarantine?",
                                                "kind": "action",
                                                "id": "condition-change-assessment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "thermal-and-dissolution-events",
                                "name": "Thermal and dissolution events",
                                "description": "Captures condition-specific property evidence and boundaries between the salt and resulting materials.",
                                "findings": [
                                    {
                                        "id": "interpretable-property-measurements",
                                        "name": "Interpretable property measurements",
                                        "description": "Attach form, conditions and event type to thermal values and specify a complete basis for solubility data.",
                                        "questions": [
                                            {
                                                "text": "For the identified form, does each reported thermal temperature describe dehydration, melting or decomposition, and is a boiling point physically applicable?",
                                                "kind": "measurement",
                                                "id": "interpretable-property-measurements-q01"
                                            },
                                            {
                                                "text": "What solubility is supported at the intended solvent composition and temperature, with an explicit mass or molar basis?",
                                                "kind": "measurement",
                                                "id": "interpretable-property-measurements-q02"
                                            },
                                            {
                                                "text": "At what point does dissolution or formulation require a linked solution or product model with its own concentration and constituents?",
                                                "kind": "boundary",
                                                "id": "interpretable-property-measurements-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "hazards-exposure-and-permitted-handling",
                        "name": "Hazards, exposure and permitted handling",
                        "description": "Connects the identified material to applicable hazard evidence and operational decisions.",
                        "rationale": "Copper sulfate handling and disposal decisions depend on form, exposure conditions, intended use and jurisdiction.",
                        "layers": [
                            {
                                "id": "classification-and-exposure-basis",
                                "name": "Classification and exposure basis",
                                "description": "Resolves hazard statements and exposure limits to their actual substance and regulatory scope.",
                                "findings": [
                                    {
                                        "id": "applicable-hazard-record",
                                        "name": "Applicable hazard record",
                                        "description": "Record the current source and scope of classifications and limits, including whether an exposure value is expressed as copper.",
                                        "questions": [
                                            {
                                                "text": "Which current SDS and jurisdiction-specific classification apply to this copper sulfate form and supplied grade?",
                                                "kind": "provenance",
                                                "id": "applicable-hazard-record-q01"
                                            },
                                            {
                                                "text": "Which exposure limits apply to the anticipated dust or mist, and what averaging period, aerosol fraction and copper-equivalent basis do they specify?",
                                                "kind": "measurement",
                                                "id": "applicable-hazard-record-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-release-and-use-boundaries",
                                "name": "Handling, release and use boundaries",
                                "description": "Supports concrete handling decisions while separating chemical identity from product-level permission.",
                                "findings": [
                                    {
                                        "id": "evidence-based-action-constraints",
                                        "name": "Evidence-based action constraints",
                                        "description": "Connect proposed transfers, dissolution, storage and disposal to verified compatibility and containment requirements.",
                                        "questions": [
                                            {
                                                "text": "What containment, exposure controls and contact-material compatibility are required for the proposed transfer or dissolution operation?",
                                                "kind": "action",
                                                "id": "evidence-based-action-constraints-q01"
                                            },
                                            {
                                                "text": "Which local waste and discharge requirements govern copper-containing residues, washings and damaged stock?",
                                                "kind": "action",
                                                "id": "evidence-based-action-constraints-q02"
                                            },
                                            {
                                                "text": "Does the intended application require a separately authorised formulation or product rather than merely an identified copper sulfate substance?",
                                                "kind": "boundary",
                                                "id": "evidence-based-action-constraints-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": [
                                            "This is recalled knowledge; no sources were consulted.",
                                            "Confirm hydration state, assay basis and impurity specifications before assigning identifiers or comparing quantities.",
                                            "Check current authoritative records for exact hazard categories, exposure limits and permitted uses; thermal and solubility data require specified hydration state and conditions."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of cupric sulfate 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": [
                                            "Anhydrous copper(II) sulfate",
                                            "Copper(II) sulfate pentahydrate",
                                            "Technical-grade copper(II) sulfate",
                                            "Reagent-grade copper(II) sulfate"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of cupric sulfate 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": "CAS Registry Number",
                                                "value_or_pattern": "7758-98-7",
                                                "note": "Anhydrous copper(II) sulfate."
                                            },
                                            {
                                                "scheme": "CAS Registry Number",
                                                "value_or_pattern": "7758-99-8",
                                                "note": "Copper(II) sulfate pentahydrate; hydration state must accompany identification."
                                            },
                                            {
                                                "scheme": "Chemical formula",
                                                "value_or_pattern": "CuSO₄ or CuSO₄·5H₂O",
                                                "note": "Distinguishes the anhydrous salt from its common pentahydrate."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of cupric sulfate 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": [
                                            "United Nations Globally Harmonized System of Classification and Labelling of Chemicals (GHS): framework for communicating chemical hazards.",
                                            "European Union REACH Regulation: chemical registration and supply-chain information requirements where applicable.",
                                            "European Union CLP Regulation: classification, labelling and packaging requirements for substances and mixtures."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of cupric sulfate 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": [
                                            "Copper source in electroplating and copper electrorefining electrolytes.",
                                            "Ingredient in fungicidal preparations, including Bordeaux mixture with lime.",
                                            "Algaecide in appropriately authorized formulations and applications.",
                                            "Laboratory reagent, including preparation of copper-based analytical solutions.",
                                            "Copper micronutrient source in agricultural formulations."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of cupric sulfate 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, anhydrous CuSO₄",
                                                "typical_range": "159.61",
                                                "unit": "g/mol"
                                            },
                                            {
                                                "quantity": "Molar mass, CuSO₄·5H₂O",
                                                "typical_range": "249.68",
                                                "unit": "g/mol"
                                            },
                                            {
                                                "quantity": "Copper mass fraction, pure anhydrous CuSO₄",
                                                "typical_range": "39.8",
                                                "unit": "% by mass"
                                            },
                                            {
                                                "quantity": "Copper mass fraction, pure CuSO₄·5H₂O",
                                                "typical_range": "25.5",
                                                "unit": "% by mass"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of cupric sulfate 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": [
                                            "Harmful if swallowed; substantial exposure can cause systemic copper toxicity.",
                                            "Eye contact can cause serious injury; dust and solutions can irritate exposed tissues.",
                                            "Toxic to aquatic organisms; releases can contaminate water and sediment.",
                                            "Confusing anhydrous and pentahydrate masses produces substantial errors in copper concentration.",
                                            "Heating the pentahydrate removes water in stages; stronger heating decomposes the salt, so thermal behavior cannot be represented by a single ordinary boiling point."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of cupric sulfate 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": [
                                            "Authorization for fungicidal or algaecidal use depends on jurisdiction, formulation and intended application.",
                                            "Required hazard labels and occupational exposure limits depend on local implementation and the specified substance or exposure form."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of cupric sulfate 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": "Copper(I) sulfate",
                                                "difference": "Copper has oxidation state +1 rather than +2; cupric specifically denotes copper(II)."
                                            },
                                            {
                                                "name": "Basic copper sulfate",
                                                "difference": "Contains hydroxide as well as sulfate and has a different composition from CuSO₄."
                                            },
                                            {
                                                "name": "Bordeaux mixture",
                                                "difference": "A preparation made using copper sulfate and lime, rather than the individual salt."
                                            },
                                            {
                                                "name": "Copper sulfate solution",
                                                "difference": "A mixture whose properties depend on solvent and concentration, rather than a specified solid hydrate or anhydrous substance."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of cupric sulfate this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Which authoritative records establish the CAS, PubChem and EC mappings for the anhydrous and hydrated forms covered by this registry entry?",
                "Which hydration states beyond the pentahydrate need explicit recognition, and what evidence distinguishes pure hydrates from partially dehydrated mixtures?",
                "Which measured solubility and thermal datasets provide reliable form-specific values and correctly distinguish dehydration, melting and decomposition?",
                "Which grade specifications, impurity limits and analytical methods govern the intended applications?",
                "Which current jurisdictional classifications, copper-based exposure limits and disposal or product-use requirements apply to the material being assessed?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 17,
                "questions": 28
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "chemical substance or material",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a cupric sulfate, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to identify cupric sulfate, assess its hydration, grade and condition, and determine whether a proposed use or handling action is appropriate.",
            "characteristics": {
                "substance": "material",
                "origin": "natural",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured",
                "consumed or used up"
            ],
            "distinguishingFeatures": [
                "Described in 66 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a cupric sulfate, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state",
                "use it up, and then need more of it"
            ],
            "howItIsRecognised": [
                "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay."
            ],
            "relatedModels": [],
            "standing": "Described in 66 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one cupric sulfate from another, and a cupric sulfate from things that resemble it.",
                        "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.",
                        "layers": [
                            {
                                "id": "naming-and-identifiers",
                                "name": "Names and identifiers",
                                "description": "The names this thing goes by and the identifiers that survive translation and time.",
                                "findings": [
                                    {
                                        "id": "preferred-name-and-aliases",
                                        "name": "Preferred name, aliases and local names",
                                        "description": "Which name to use, which names mean the same thing, and which merely sound similar.",
                                        "questions": [
                                            {
                                                "id": "preferred-name-and-aliases-q01",
                                                "text": "What identifies and describes the name of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q02",
                                                "text": "Who or what asserted this about the name of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q03",
                                                "text": "What may an agent decide or do once the name of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "stable-identifiers",
                                        "name": "Stable identifiers and external keys",
                                        "description": "Identifiers that keep pointing at this kind of thing across systems and languages.",
                                        "questions": [
                                            {
                                                "id": "stable-identifiers-q01",
                                                "text": "What identifies and describes an identifier for a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q02",
                                                "text": "Who or what asserted this about an identifier for a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q03",
                                                "text": "What may an agent decide or do once an identifier for a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "classification-and-granularity",
                                "name": "Classification and granularity",
                                "description": "Where a cupric sulfate sits among kinds, and how finely a task needs to cut it.",
                                "findings": [
                                    {
                                        "id": "kind-and-parents",
                                        "name": "Kind, parents and neighbouring kinds",
                                        "description": "The classes this thing belongs to and the ones it is next to.",
                                        "questions": [
                                            {
                                                "id": "kind-and-parents-q01",
                                                "text": "What identifies and describes the kind of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q02",
                                                "text": "Who or what asserted this about the kind of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q03",
                                                "text": "What may an agent decide or do once the kind of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "distinguishing-features",
                                        "name": "Distinguishing features",
                                        "description": "What separates a cupric sulfate from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q02",
                                                "text": "Who or what asserted this about what distinguishes a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q03",
                                                "text": "What may an agent decide or do once what distinguishes a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "form-and-composition",
                        "name": "Form, composition and condition",
                        "description": "What a cupric sulfate is made of, what shape and size it takes, and what state it is in.",
                        "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.",
                        "layers": [
                            {
                                "id": "form-and-dimensions",
                                "name": "Form and dimensions",
                                "description": "Shape, size, mass and the ranges these take across examples.",
                                "findings": [
                                    {
                                        "id": "measurable-dimensions",
                                        "name": "Measurable dimensions and their units",
                                        "description": "The quantities worth recording and the units they are recorded in.",
                                        "questions": [
                                            {
                                                "id": "measurable-dimensions-q01",
                                                "text": "What identifies and describes the dimensions of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q02",
                                                "text": "Who or what asserted this about the dimensions of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q03",
                                                "text": "What may an agent decide or do once the dimensions of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-and-composition",
                                "name": "Material and composition",
                                "description": "Materials, parts and how they are put together.",
                                "findings": [
                                    {
                                        "id": "parts-and-materials",
                                        "name": "Parts and materials",
                                        "description": "What a cupric sulfate is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q02",
                                                "text": "Who or what asserted this about the composition of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q03",
                                                "text": "What may an agent decide or do once the composition of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-integrity",
                                "name": "Condition and integrity",
                                "description": "Wear, damage, health and the difference between working and broken.",
                                "findings": [
                                    {
                                        "id": "condition-assessment",
                                        "name": "Condition, damage and health",
                                        "description": "How the condition of a cupric sulfate is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q02",
                                                "text": "Who or what asserted this about the condition of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q03",
                                                "text": "What may an agent decide or do once the condition of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "place-and-movement",
                        "name": "Place and movement",
                        "description": "Where a cupric sulfate is, how it got there and where it may go (varies).",
                        "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.",
                        "layers": [
                            {
                                "id": "location-and-placement",
                                "name": "Location and placement",
                                "description": "Position, containment and the reference frame the position is given in.",
                                "findings": [
                                    {
                                        "id": "position-and-frame",
                                        "name": "Position, container and reference frame",
                                        "description": "Where a cupric sulfate is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q02",
                                                "text": "Who or what asserted this about the location of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q03",
                                                "text": "What may an agent decide or do once the location of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "movement-and-transfer",
                                "name": "Movement and transfer",
                                "description": "How a cupric sulfate is carried, installed or relocated.",
                                "findings": [
                                    {
                                        "id": "movement-events",
                                        "name": "Movement events and constraints",
                                        "description": "What counts as a movement, what records it and what limits it.",
                                        "questions": [
                                            {
                                                "id": "movement-events-q01",
                                                "text": "What identifies and describes the movement of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q02",
                                                "text": "Who or what asserted this about the movement of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q03",
                                                "text": "What may an agent decide or do once the movement of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "state-and-lifecycle",
                        "name": "State and lifecycle",
                        "description": "The states a cupric sulfate passes through and the events that move it between them.",
                        "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.",
                        "layers": [
                            {
                                "id": "lifecycle-stages",
                                "name": "Lifecycle stages",
                                "description": "From coming into existence to ceasing to be one of these.",
                                "findings": [
                                    {
                                        "id": "stages-and-transitions",
                                        "name": "Stages and transitions",
                                        "description": "The stages worth naming and what moves a cupric sulfate between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q02",
                                                "text": "Who or what asserted this about the lifecycle of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q03",
                                                "text": "What may an agent decide or do once the lifecycle of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "observations-and-status",
                                "name": "Observations and current status",
                                "description": "What is observed about a cupric sulfate, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a cupric sulfate is recorded so that it can be superseded rather than overwritten.",
                                        "questions": [
                                            {
                                                "id": "observation-record-q01",
                                                "text": "What identifies and describes an observation of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q02",
                                                "text": "Who or what asserted this about an observation of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q03",
                                                "text": "What may an agent decide or do once an observation of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use-and-operation",
                        "name": "Use and operation",
                        "description": "What can be done with a cupric sulfate and what it takes to do it.",
                        "rationale": "An agent that can recognise a thing but not act on it has only half a model.",
                        "layers": [
                            {
                                "id": "intended-use",
                                "name": "Intended use and function",
                                "description": "What a cupric sulfate is for, and what it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-and-purpose",
                                        "name": "Function, purpose and misuse",
                                        "description": "The function a cupric sulfate performs and the uses that fall outside it.",
                                        "questions": [
                                            {
                                                "id": "function-and-purpose-q01",
                                                "text": "What identifies and describes the use of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q02",
                                                "text": "Who or what asserted this about the use of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q03",
                                                "text": "What may an agent decide or do once the use of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-and-procedure",
                                "name": "Handling and procedure",
                                "description": "The steps, skills and tools involved in using a cupric sulfate.",
                                "findings": [
                                    {
                                        "id": "procedures-and-skills",
                                        "name": "Procedures, skills and required tools",
                                        "description": "What an agent needs before it can act on a cupric sulfate at all.",
                                        "questions": [
                                            {
                                                "id": "procedures-and-skills-q01",
                                                "text": "What identifies and describes handling a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q02",
                                                "text": "Who or what asserted this about handling a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q03",
                                                "text": "What may an agent decide or do once handling a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "supply-and-consumption",
                                "name": "Supply and consumption",
                                "description": "Quantities, rates and what running out means.",
                                "findings": [
                                    {
                                        "id": "consumption-and-stock",
                                        "name": "Consumption, stock and replenishment",
                                        "description": "How much of a cupric sulfate there is and how fast it goes.",
                                        "questions": [
                                            {
                                                "id": "consumption-and-stock-q01",
                                                "text": "What identifies and describes the supply of a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q02",
                                                "text": "Who or what asserted this about the supply of a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q03",
                                                "text": "What may an agent decide or do once the supply of a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "composition-and-identity",
                        "name": "Composition, grade and chemical identity",
                        "description": "What cupric sulfate is made of and how pure the thing in hand is.",
                        "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.",
                        "layers": [
                            {
                                "id": "chemical-identity",
                                "name": "Chemical identity",
                                "description": "Formula, structure and the registry numbers that name it unambiguously.",
                                "findings": [
                                    {
                                        "id": "identity-record",
                                        "name": "Identity and registry numbers",
                                        "description": "What identifies this substance across suppliers and regulators.",
                                        "questions": [
                                            {
                                                "id": "identity-record-q01",
                                                "text": "What formula, structure and registry identifiers name cupric sulfate unambiguously?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "identity-record-q02",
                                                "text": "Which related substances share a name in common use but not an identifier?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "grade-and-impurities",
                                "name": "Grade, purity and impurities",
                                "description": "The specification a batch meets and what else is in it.",
                                "findings": [
                                    {
                                        "id": "specification",
                                        "name": "Specification and assay",
                                        "description": "How purity is stated and measured, and which impurities matter.",
                                        "questions": [
                                            {
                                                "id": "specification-q01",
                                                "text": "What grades of cupric sulfate exist, how is purity assayed, and which impurities are limited?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "specification-q02",
                                                "text": "Which use requires which grade, and what happens when a lower grade is substituted?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "properties-and-behaviour",
                        "name": "Properties and behaviour",
                        "description": "How cupric sulfate behaves under conditions an agent can measure or change.",
                        "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.",
                        "layers": [
                            {
                                "id": "physical-constants",
                                "name": "Physical constants",
                                "description": "Values that hold for the pure substance, with their conditions.",
                                "findings": [
                                    {
                                        "id": "constants-record",
                                        "name": "Constants and conditions",
                                        "description": "The quantities worth recording and the state they apply in.",
                                        "questions": [
                                            {
                                                "id": "constants-record-q01",
                                                "text": "What are the defining physical constants of cupric sulfate, in what units and under what conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "constants-record-q02",
                                                "text": "Which of these values change with grade or form rather than being fixed?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "stability-and-reactivity",
                                "name": "Stability and reactivity",
                                "description": "What it reacts with, degrades into, and how it is stored.",
                                "findings": [
                                    {
                                        "id": "incompatibilities",
                                        "name": "Incompatibilities and degradation",
                                        "description": "What must not meet it, and what it becomes over time.",
                                        "questions": [
                                            {
                                                "id": "incompatibilities-q01",
                                                "text": "What is cupric sulfate incompatible with, and what does it degrade into under storage?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "incompatibilities-q02",
                                                "text": "What storage and handling does that require, and who is competent to do it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "hazard-and-regulation",
                        "name": "Hazard classification and regulation",
                        "description": "How cupric sulfate can harm, and what the law says about holding and moving it.",
                        "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.",
                        "layers": [
                            {
                                "id": "hazard-class",
                                "name": "Hazard classification",
                                "description": "Classified hazards, exposure limits and protective measures.",
                                "findings": [
                                    {
                                        "id": "classified-hazards",
                                        "name": "Classified hazards and limits",
                                        "description": "The classification, the scheme it belongs to, and the limits set.",
                                        "questions": [
                                            {
                                                "id": "classified-hazards-q01",
                                                "text": "How is cupric sulfate classified for hazard, under which scheme, and what exposure limits apply?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "classified-hazards-q02",
                                                "text": "What protection does handling require, and what must an agent refuse to do without it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "regulatory-identity",
                                "name": "Regulatory identity and control",
                                "description": "Registration, restriction and transport rules by jurisdiction.",
                                "findings": [
                                    {
                                        "id": "controls",
                                        "name": "Controls and jurisdiction",
                                        "description": "Where it is restricted and what the restriction attaches to.",
                                        "questions": [
                                            {
                                                "id": "controls-q01",
                                                "text": "Which registrations, restrictions or transport rules cover cupric sulfate, and where?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "controls-q02",
                                                "text": "Does the control attach to the substance, its concentration, or its intended use?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a cupric sulfate came from and when it held.",
                        "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.",
                        "layers": [
                            {
                                "id": "source-and-authority",
                                "name": "Source and authority",
                                "description": "Who said it, on what evidence, and how strongly.",
                                "findings": [
                                    {
                                        "id": "claim-provenance",
                                        "name": "Claim provenance and confidence",
                                        "description": "The authority behind each claim about a cupric sulfate and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q02",
                                                "text": "Who or what asserted this about a claim about a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q03",
                                                "text": "What may an agent decide or do once a claim about a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "time-and-versions",
                                "name": "Time, versions and supersession",
                                "description": "When a claim was true, when it was learnt, and what replaced it.",
                                "findings": [
                                    {
                                        "id": "validity-and-supersession",
                                        "name": "Validity period and supersession",
                                        "description": "How an old claim about a cupric sulfate is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a cupric sulfate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q02",
                                                "text": "Who or what asserted this about the validity of a claim about a cupric sulfate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q03",
                                                "text": "What may an agent decide or do once the validity of a claim about a cupric sulfate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 9,
                "layers": 20,
                "findings": 22,
                "questions": 60
            }
        }
    }
}