{ "model": { "rank": 3960, "code": "thing-q116269", "model_id": "vr.tr.silicon-dioxide", "name": "silicon dioxide", "purpose": "Enable an AI agent to identify silicon dioxide, assess its form and condition, and determine which uses or handling actions are supported by evidence for that material.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q116269/", "tier": 2, "score": 80, "payload": { "layer": "wikidata", "aliases": [ "2D silica", "stishovite", "coesite", "Biogenic silica", "seifertite" ], "aliasCount": 5, "merged": 5, "knownIn": 80, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q116269", "url": "https://www.wikidata.org/wiki/Q116269", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T19:10:14Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 26.6, "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: 01a08792-bd25-7f21-b097-f4afe38ccd4a\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: silicon dioxide\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 695 things:\n# Batch 004: 1001 ", "usd": 0, "recall": true }, "codex": { "seconds": 78.7, "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: 01a08792-bd1c-7050-a8fd-fe55bd4d2297\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: silicon dioxide\nRegistry id: vr.tr.silicon-dioxide\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (" } } }, "metaModel": { "id": "THING-Q116269", "registryId": "vr.tr.silicon-dioxide", "name": "silicon dioxide", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q116269/", "model": { "registry_id": "vr.tr.silicon-dioxide", "name": "silicon dioxide", "purpose": "Enable an AI agent to identify silicon dioxide, assess its form and condition, and determine which uses or handling actions are supported by evidence for that material.", "definition": "Silicon dioxide (SiO₂), commonly called silica, is an inorganic compound of silicon and oxygen that occurs in crystalline and amorphous forms, with properties that depend on structure, impurities and particle characteristics.", "scope_statement": "This model owns silicon dioxide as a chemical substance and material, including its crystalline or amorphous form, composition, particle and surface properties, grade, condition-dependent behavior, and evidence governing use; it distinguishes the substance from silica-containing mixtures, products, and manufacturing processes.", "in_scope": [ "SiO2 identity, form-specific identifiers, and evidence that a sample is silicon dioxide", "Crystalline polymorphs, amorphous forms, and mixtures of silica forms", "Purity, impurities, moisture, surface treatment, and grade", "Particle size, aggregation, porosity, surface chemistry, and bulk condition", "Measured properties and transformations under stated conditions", "Form-specific hazard, exposure, and application eligibility evidence" ], "out_of_scope": [ "Silicon metal, silicones, and silicate compounds as separate substances", "Rocks, ores, sand, and other mixtures except for their identified silicon dioxide component", "Finished glassware, optical components, semiconductor devices, and other silica-containing products", "Manufacturing equipment and complete silica production processes", "Workplace ventilation systems and occupational disease models", "Carrier liquids and complete formulations containing dispersed silica" ], "distinguishing_features": [ "Confirm SiO2 composition through suitable analytical evidence; silicon content alone does not distinguish silica from silicon metal, silicones, or silicates.", "Use structural characterization to distinguish crystalline silica from amorphous silica and identify any crystalline polymorphs present.", "Establish whether the object is silicon dioxide itself or a mixture containing it; a label such as sand or glass does not settle composition.", "Distinguish dense silica, porous silica gel, and particulate silica using morphology, porosity, and preparation evidence rather than treating all SiO2 materials as interchangeable.", "Identify surface coatings, absorbed water, and carrier phases separately from the underlying silica so that modified or dispersed material is not mistaken for untreated dry SiO2." ], "characteristics": [ { "name": "Chemical identity", "kind": "category", "unit_or_values": "SiO2; verified substance name and form-specific CAS, EC, or PubChem identifiers where applicable", "why_it_matters": "Connects the material to the correct identity record without assuming one identifier resolves every silica form." }, { "name": "Structural form", "kind": "category", "unit_or_values": "Amorphous; identified crystalline polymorph such as quartz, cristobalite, or tridymite; mixed; undetermined", "why_it_matters": "Structure affects properties, transformation behavior, and the applicability of hazard evidence." }, { "name": "Crystalline phase fractions", "kind": "measurement", "unit_or_values": "Mass percent by identified phase, with analytical method and detection limit", "why_it_matters": "A nominally amorphous material may require quantitative evidence about crystalline constituents." }, { "name": "Purity and impurity profile", "kind": "measurement", "unit_or_values": "SiO2 mass percent and individual impurities in mg/kg or mass percent, with wet or dry basis", "why_it_matters": "Trace constituents and assay basis can determine whether material meets a particular grade." }, { "name": "Particle size and aggregation", "kind": "measurement", "unit_or_values": "nm or µm; distribution basis; primary particle, aggregate, agglomerate, or aerodynamic diameter", "why_it_matters": "Different size definitions support different conclusions about dispersion, performance, and airborne exposure." }, { "name": "Specific surface area and porosity", "kind": "measurement", "unit_or_values": "m²/g surface area; cm³/g pore volume; nm pore diameter; stated methods", "why_it_matters": "Separates materials with similar composition but substantially different adsorption and interface behavior." }, { "name": "Surface condition", "kind": "state", "unit_or_values": "Untreated or specified treatment; surface hydroxyl characterization; adsorbed species; contamination status", "why_it_matters": "Surface state affects wetting, adsorption, compatibility, and interpretation of material identity." }, { "name": "Water content", "kind": "measurement", "unit_or_values": "Mass percent with conditioning and measurement method; distinguish moisture from other mass loss", "why_it_matters": "Water changes handling and performance and can distort purity comparisons." }, { "name": "Thermal and chemical response", "kind": "measurement", "unit_or_values": "Transition or softening temperatures in °C or K; dissolution or reaction measurements with medium, pressure, and exposure time", "why_it_matters": "Property values and stability claims require the specific silica form and test conditions." }, { "name": "Grade and application qualification", "kind": "relation", "unit_or_values": "Named specification, intended application, certificate, lot, and qualification status", "why_it_matters": "Chemical identity alone does not establish suitability for optical, electronic, food, pharmaceutical, or industrial use." }, { "name": "Exposure and regulatory evidence", "kind": "relation", "unit_or_values": "Applicable classification and exposure-limit records linked to form, particle fraction, jurisdiction, date, and source", "why_it_matters": "Prevents transferring a classification or limit between unlike silica forms or regulatory contexts." } ], "affordances": [ "Select analytical checks that distinguish silica identity, structural form, and impurities.", "Compare silica lots against an application specification using compatible measurement methods and assay bases.", "Assess whether drying, dispersion, heating, or surface treatment requires renewed characterization.", "Identify candidate silica forms for adsorption, filler, optical, or dielectric roles and list the qualification evidence still needed.", "Determine which exposure and handling records apply to the material form and proposed operation.", "Flag unsupported substitutions between silica grades or forms." ] }, "sources": [], "structure": { "bundles": [ { "id": "identity-and-structural-form", "name": "Identity and structural form", "description": "Establishes what counts as the silicon dioxide material and which structural forms it contains.", "rationale": "The formula SiO2 does not resolve polymorph, amorphous structure, mixture boundaries, or the identity record applicable to a particular material.", "layers": [ { "id": "composition-and-boundary", "name": "Composition and boundary", "description": "Separates silica substance identity from containing mixtures and chemically different silicon materials.", "findings": [ { "id": "silica-identity-evidence", "name": "Silica identity evidence", "description": "Record the analytical and documentary basis for identifying the material as SiO2 and defining the portion modeled.", "questions": [ { "text": "What evidence identifies this material as silicon dioxide rather than a silicate, silicone, silicon metal, or a mixture described only by silicon content?", "kind": "definition", "id": "silica-identity-evidence-q01" }, { "text": "Does this record describe silica itself, a silica component, or a supplied dispersion whose carrier needs a neighbouring model?", "kind": "boundary", "id": "silica-identity-evidence-q02" }, { "text": "Which substance identifiers are verified for this specific form, and which authoritative records support that mapping?", "kind": "provenance", "id": "silica-identity-evidence-q03" } ] } ] }, { "id": "crystallinity-and-polymorphs", "name": "Crystallinity and polymorphs", "description": "Identifies amorphous material and crystalline phases without relying solely on supplier labels.", "findings": [ { "id": "phase-assignment", "name": "Phase assignment", "description": "Record phase assignments, quantitative fractions where available, and the limits of the characterization.", "questions": [ { "text": "Which method establishes amorphous structure or identifies quartz, cristobalite, tridymite, or another SiO2 polymorph?", "kind": "measurement", "id": "phase-assignment-q01" }, { "text": "What crystalline phase fractions, detection limits, and sampling limitations accompany a claim that the silica is amorphous or phase-pure?", "kind": "measurement", "id": "phase-assignment-q02" } ] } ] } ] }, { "id": "particles-pores-and-surfaces", "name": "Particles, pores, and surfaces", "description": "Describes the physical architecture and interface state that differentiate silica materials with the same formula.", "rationale": "Particle hierarchy, porosity, and surface treatment are essential to recognizing silica gel, powders, dispersions, and dense forms and judging their performance.", "layers": [ { "id": "particle-and-pore-architecture", "name": "Particle and pore architecture", "description": "Characterizes size, aggregation, accessible area, and pore structure.", "findings": [ { "id": "morphology-measurements", "name": "Morphology measurements", "description": "Keep particle and pore measurements tied to the entity measured and the preparation conditions.", "questions": [ { "text": "Does the reported size distribution describe primary silica particles, aggregates, agglomerates, or aerodynamic particles, and on what distribution basis?", "kind": "measurement", "id": "morphology-measurements-q01" }, { "text": "What specific surface area, pore volume, and pore-size distribution characterize this silica, using which methods and sample pretreatment?", "kind": "measurement", "id": "morphology-measurements-q02" } ] } ] }, { "id": "surface-chemistry-and-water", "name": "Surface chemistry and water", "description": "Tracks surface hydroxyls, intentional modifications, adsorbates, and moisture.", "findings": [ { "id": "interface-state", "name": "Interface state", "description": "Record the surface state relevant to adsorption, wetting, dispersion, and material boundaries.", "questions": [ { "text": "What evidence describes surface hydroxylation, intentional treatment, and contamination on this silica?", "kind": "measurement", "id": "interface-state-q01" }, { "text": "How are removable moisture, adsorbed species, and other contributors to measured mass loss distinguished?", "kind": "measurement", "id": "interface-state-q02" }, { "text": "Does an applied coating or functional group require a linked component identity and additional qualification for the intended use?", "kind": "boundary", "id": "interface-state-q03" } ] } ] } ] }, { "id": "properties-and-transformations", "name": "Properties and transformations", "description": "Connects measured silica properties and changes of state to the conditions under which they were established.", "rationale": "A single table of constants cannot adequately describe crystalline, amorphous, porous, and surface-modified silicon dioxide.", "layers": [ { "id": "form-dependent-physical-properties", "name": "Form-dependent physical properties", "description": "Records thermal, optical, electrical, and density measurements appropriate to the silica form.", "findings": [ { "id": "conditioned-property-values", "name": "Conditioned property values", "description": "Require form, measurement conditions, and the measured phenomenon to accompany numerical properties.", "questions": [ { "text": "Which density, refractive-index, dielectric, or thermal measurements are needed for the intended use, and under what temperature, wavelength, frequency, or moisture conditions?", "kind": "measurement", "id": "conditioned-property-values-q01" }, { "text": "Does a reported thermal value represent a polymorphic transition, glass transition, softening, melting, or another event, and what form and pressure does it describe?", "kind": "definition", "id": "conditioned-property-values-q02" } ] } ] }, { "id": "chemical-and-processing-response", "name": "Chemical and processing response", "description": "Describes how environments and processing may alter silica or invalidate its previous characterization.", "findings": [ { "id": "stability-and-change-evidence", "name": "Stability and change evidence", "description": "Tie compatibility and transformation claims to the actual medium, treatment, duration, and observed changes.", "questions": [ { "text": "What evidence establishes dissolution, reaction, or surface alteration in the proposed medium at the relevant pH, temperature, concentration, and duration?", "kind": "measurement", "id": "stability-and-change-evidence-q01" }, { "text": "After heating, milling, drying, or chemical treatment, which phase, particle, pore, and surface measurements must be repeated before reuse?", "kind": "action", "id": "stability-and-change-evidence-q02" } ] } ] } ] }, { "id": "purity-grade-and-use", "name": "Purity, grade, and use", "description": "Connects a particular silica material or lot to evidence of application suitability.", "rationale": "Silica identity and a high assay value alone do not establish suitability where trace impurities, moisture, morphology, or performance govern acceptance.", "layers": [ { "id": "lot-composition-and-origin", "name": "Lot composition and origin", "description": "Captures provenance and analytical evidence that distinguish supplied silica grades.", "findings": [ { "id": "assay-and-traceability", "name": "Assay and traceability", "description": "Record lot-linked composition and origin without treating production route as proof of final properties.", "questions": [ { "text": "What SiO2 assay, trace-metal profile, residual constituents, and moisture measurements are available, with methods and wet or dry basis?", "kind": "measurement", "id": "assay-and-traceability-q01" }, { "text": "Which lot, supplier, origin, and preparation-route records support the certificate, and which stated properties were actually measured?", "kind": "provenance", "id": "assay-and-traceability-q02" } ] } ] }, { "id": "application-qualification", "name": "Application qualification", "description": "Determines whether a silica grade meets the requirements of a proposed role.", "findings": [ { "id": "fitness-and-substitution", "name": "Fitness and substitution", "description": "Record specification-based acceptance and the evidence needed before replacing one silica material with another.", "questions": [ { "text": "Which specification and tests qualify this silica for its proposed adsorption, filler, optical, dielectric, food, or pharmaceutical role?", "kind": "action", "id": "fitness-and-substitution-q01" }, { "text": "Which differences in polymorph, impurities, particle structure, surface treatment, or moisture prevent substitution for the currently qualified silica?", "kind": "boundary", "id": "fitness-and-substitution-q02" } ] } ] } ] }, { "id": "exposure-and-regulatory-applicability", "name": "Exposure and regulatory applicability", "description": "Determines which hazard and regulatory evidence applies to the silica form and its proposed handling.", "rationale": "Silica records must preserve distinctions among structural forms, particle fractions, supplied conditions, and activities when evaluating exposure or permitted use.", "layers": [ { "id": "airborne-material-and-exposure", "name": "Airborne material and exposure", "description": "Links the supplied material and handling operation to characterization of potentially airborne silica.", "findings": [ { "id": "operation-specific-exposure-evidence", "name": "Operation-specific exposure evidence", "description": "Evaluate airborne particle and crystalline-content evidence separately from bulk composition.", "questions": [ { "text": "Could the proposed transfer, cutting, grinding, drying, or other operation generate airborne silica, and what measurements characterize the relevant particle fraction?", "kind": "measurement", "id": "operation-specific-exposure-evidence-q01" }, { "text": "What evidence establishes the crystalline silica content of that airborne fraction rather than assuming it equals the bulk material composition?", "kind": "measurement", "id": "operation-specific-exposure-evidence-q02" }, { "text": "Which handling controls and verification steps are supported by the applicable assessment for this operation?", "kind": "action", "id": "operation-specific-exposure-evidence-q03" } ] } ] }, { "id": "classification-and-use-restrictions", "name": "Classification and use restrictions", "description": "Maintains current, attributable regulatory conclusions with explicit applicability boundaries.", "findings": [ { "id": "applicable-regulatory-record", "name": "Applicable regulatory record", "description": "Associate classifications, exposure limits, and use restrictions with the exact form, jurisdiction, and effective record.", "questions": [ { "text": "Which current authoritative sources establish classification, labeling, and exposure limits for this silica form, with units, averaging periods, and particle-fraction definitions?", "kind": "provenance", "id": "applicable-regulatory-record-q01" }, { "text": "Do the intended jurisdiction and application impose grade, purity, particle-size, or surface-treatment conditions that this material must demonstrate?", "kind": "action", "id": "applicable-regulatory-record-q02" } ] } ] } ] }, { "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 recall, not source-verified research; confirm identifiers and current regulatory requirements before publication.", "The varieties listed mix crystalline polymorphs with manufactured amorphous forms and are not an exhaustive or mutually exclusive taxonomy.", "Specify crystallinity, particle size, porosity, surface treatment and purity before assigning exposure limits or physical constants; melting behavior is form-dependent, and amorphous silica softens over a range." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of silicon dioxide 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": [ "Quartz", "Cristobalite", "Tridymite", "Fused silica", "Precipitated silica", "Fumed silica" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of silicon dioxide 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": "Chemical formula", "value_or_pattern": "SiO₂", "note": "Expresses the silicon-to-oxygen atomic ratio; it does not distinguish crystalline polymorphs or amorphous forms." }, { "scheme": "CAS Registry Number", "value_or_pattern": "7631-86-9", "note": "General silicon dioxide identifier; particular forms can have separate registry numbers." }, { "scheme": "CAS Registry Number", "value_or_pattern": "14808-60-7", "note": "Quartz-specific identifier." }, { "scheme": "EC number", "value_or_pattern": "231-545-4", "note": "European inventory identifier for silicon dioxide; form-specific identity still matters." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of silicon dioxide 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": [ "US Occupational Safety and Health Administration: respirable crystalline silica standards for occupational exposure.", "European Union: REACH and CLP regulations govern applicable chemical registration, classification and communication requirements.", "International Agency for Research on Cancer: inhaled crystalline silica in the form of quartz or cristobalite from occupational sources is classified as carcinogenic to humans, Group 1; this is a hazard evaluation rather than a regulation." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of silicon dioxide 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": [ "Raw material for glass manufacture.", "High-purity fused silica for optical components and laboratory equipment.", "Insulating and dielectric layers in semiconductor devices.", "Reinforcing filler in rubber and a rheology modifier in formulations.", "Porous silica gel for adsorption, drying and chromatography." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of silicon dioxide this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "quantity": "Molar mass", "typical_range": "60.08", "unit": "g/mol" }, { "quantity": "Density of quartz near room temperature", "typical_range": "2.65", "unit": "g/cm³" }, { "quantity": "Density of dense fused silica near room temperature", "typical_range": "2.20", "unit": "g/cm³" }, { "quantity": "Mohs hardness of quartz", "typical_range": "7", "unit": "Mohs scale" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of silicon dioxide 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": [ "Repeated inhalation of respirable crystalline silica can cause silicosis and increase lung cancer risk.", "Cutting, grinding or crushing silica-containing materials can generate hazardous respirable dust.", "Amorphous silica dust can present inhalation and irritation hazards; crystalline-silica classifications should not automatically be transferred to every amorphous grade.", "Bulk silica glass and crystalline components can fracture brittly, creating sharp fragments.", "Some amorphous silica materials can crystallize during prolonged high-temperature processing, changing properties and subsequent dust hazards." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of silicon dioxide 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": [ "Occupational exposure limits, measurement conventions and required controls differ across jurisdictions.", "Food, pharmaceutical and other regulated uses depend on jurisdiction-specific authorizations and grade specifications." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of silicon dioxide 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": "Silicon", "difference": "Silicon is the chemical element Si; silicon dioxide is its oxygen-containing compound." }, { "name": "Silicate", "difference": "Silicate minerals and salts generally contain additional elements associated with silicon-oxygen structures; silica denotes SiO₂." }, { "name": "Sand", "difference": "Sand is a particle-size category of granular material, which may contain quartz but need not consist of silicon dioxide." }, { "name": "Glass", "difference": "Glass describes a noncrystalline material state; many commercial glasses contain several oxides, whereas fused silica is predominantly SiO₂." }, { "name": "Silica gel", "difference": "Silica gel is a porous amorphous silica material distinguished by its surface structure and adsorption behavior." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of silicon dioxide this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which authoritative identity records best map the registry's broad silicon dioxide entry to its crystalline, amorphous, and commercially modified forms without creating duplicate substance models?", "Which reference methods and detection limits should be required for crystalline-phase quantification in nominally amorphous silica?", "Which form-specific thermal and physical property sources are sufficiently documented to supply reference values without confusing softening, phase transitions, and melting?", "Where should the ownership boundary fall for surface-functionalized silica, silica gels with additives, and colloidal formulations while preserving one silicon dioxide source of truth?", "Which jurisdictions and intended applications should the first researched publication cover for exposure limits, hazard classifications, and grade-specific use requirements?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 19, "questions": 32 } }, "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 silicon dioxide, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to identify silicon dioxide, assess its form and condition, and determine which uses or handling actions are supported by evidence for that material.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured", "consumed or used up" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: 2D silica, stishovite, coesite, Biogenic silica, seifertite.", "5 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 80 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 silicon dioxide, 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": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "2D silica", "stishovite", "coesite", "Biogenic silica", "seifertite" ] } ], "standing": "Described in 80 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 5 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one silicon dioxide from another, and a silicon dioxide 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 silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a silicon dioxide 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 silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a silicon dioxide performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a silicon dioxide at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 silicon dioxide is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a silicon dioxide, 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 silicon dioxide, 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 silicon dioxide 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 } } } }