{ "model": { "rank": 4171, "code": "thing-q133145", "model_id": "vr.tr.acetylene", "name": "acetylene", "purpose": "Enable an AI agent to recognise acetylene, assess a particular material lot and its containment state, and determine which uses or interventions require further evidence.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q133145/", "tier": 2, "score": 77, "payload": { "layer": "wikidata", "aliases": [ "Acetylene-13C2" ], "aliasCount": 1, "merged": 1, "knownIn": 77, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.acetylene", "source": { "dataset": "wikidata", "item": "Q133145", "url": "https://www.wikidata.org/wiki/Q133145", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T19:38:08Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 26, "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: 01a087ac-7d37-7092-a2c3-e56f2180fc9a\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: acetylene\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 regist", "usd": 0, "recall": true }, "codex": { "seconds": 65.1, "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: 01a087ac-7d43-74f2-a382-c5a9eee54779\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: acetylene\nRegistry id: vr.tr.acetylene\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nCont" } } }, "metaModel": { "id": "THING-Q133145", "registryId": "vr.tr.acetylene", "name": "acetylene", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q133145/", "model": { "registry_id": "vr.tr.acetylene", "name": "acetylene", "purpose": "Enable an AI agent to recognise acetylene, assess a particular material lot and its containment state, and determine which uses or interventions require further evidence.", "definition": "Acetylene, systematically named ethyne, is the simplest alkyne, a hydrocarbon with molecular formula C₂H₂ and structure H-C≡C-H that is a colorless, highly flammable gas at ordinary temperature and pressure.", "scope_statement": "This model owns acetylene as the chemical substance ethyne, C2H2, including its identity, grade, impurities, physical state, reactive behaviour and constraints arising from its supplied form; it references separate models for mixtures, cylinders, equipment and production processes.", "in_scope": [ "Chemical identity and evidence distinguishing acetylene from other hydrocarbons", "Grade, purity, impurities and the distinction between the substance and its supplied formulation", "Phase, pressure, temperature and condition-dependent physical properties", "Combustion, decomposition and material-compatibility hazards", "Containment-dependent condition, intended use and applicable safety evidence" ], "out_of_scope": [ "Design, certification and maintenance of acetylene cylinders and their valves", "Complete models of solvent mixtures and porous cylinder filling materials", "Acetylene manufacturing plants and production processes", "Welding torches, cutting equipment and operating procedures", "Reaction products and downstream chemical manufacturing processes" ], "distinguishing_features": [ "Acetylene is ethyne, with molecular formula C2H2 and a carbon-carbon triple bond; ethylene has a different formula and bond structure.", "A sample containing acetylene is not necessarily pure acetylene: identity must be separated from measured concentration and impurities.", "Dissolved acetylene remains the same chemical species, but its supplied formulation and containment conditions differ from those of free gas.", "Acetylene assessment must consider decomposition as well as combustion; oxygen exclusion alone does not establish safety.", "Fuel-gas interchangeability cannot be inferred from flammability: acetylene requires its own equipment-compatibility and supply-condition evidence." ], "characteristics": [ { "name": "Chemical identity", "kind": "category", "unit_or_values": "Ethyne; acetylene; C2H2; verified CAS, EC and PubChem identifiers", "why_it_matters": "Connects records to the correct chemical species without confusing synonyms, mixtures or commercial products." }, { "name": "Acetylene content", "kind": "measurement", "unit_or_values": "mol%, volume% or mass%, with analytical method and reporting basis", "why_it_matters": "Separates substance identity from lot purity and prevents comparison of incompatible concentration bases." }, { "name": "Impurity profile", "kind": "measurement", "unit_or_values": "Species-specific ppm or concentration, with detection limits", "why_it_matters": "Moisture, sulfur- or phosphorus-containing impurities and solvent carryover can affect suitability and hazards." }, { "name": "Declared grade", "kind": "category", "unit_or_values": "Supplier grade and referenced specification", "why_it_matters": "A grade label is useful only when its actual acceptance limits are available." }, { "name": "Physical and supply state", "kind": "state", "unit_or_values": "Free gas, dissolved gas or other documented phase; carrier solvent where applicable", "why_it_matters": "Determines which property data and containment assumptions apply." }, { "name": "Temperature", "kind": "measurement", "unit_or_values": "°C or K, with measurement location and time", "why_it_matters": "Provides context for phase, pressure and stability assessments." }, { "name": "Pressure", "kind": "measurement", "unit_or_values": "kPa or bar, explicitly absolute or gauge", "why_it_matters": "Pressure influences state and hazard assessment, and ambiguous pressure references can invalidate decisions." }, { "name": "Phase-transition properties", "kind": "measurement", "unit_or_values": "°C or K at stated pressure, identifying melting, boiling or sublimation", "why_it_matters": "Prevents a transition value from being treated as an unconditional material constant." }, { "name": "Supply-system relationship", "kind": "relation", "unit_or_values": "Linked cylinder or installation, solvent, porous mass and supplier documentation", "why_it_matters": "Connects the substance assessment to the actual containment arrangement." }, { "name": "Hazard and exposure classification", "kind": "category", "unit_or_values": "Jurisdiction-specific classification, safety-data-sheet revision and applicable exposure criteria", "why_it_matters": "Keeps regulatory decisions tied to the supplied form, governing jurisdiction and current evidence." }, { "name": "Intended-use suitability", "kind": "state", "unit_or_values": "Supported, unsupported or undetermined for a specified use", "why_it_matters": "Prevents a general acetylene identity from being mistaken for evidence that a particular lot is fit for purpose." } ], "affordances": [ "Match a labelled or analysed material to acetylene using chemical identity evidence.", "Compare a lot's purity and impurity results with a specified application requirement.", "Interpret phase and physical-property records using their temperature and pressure conditions.", "Flag proposed contact materials or supply conditions that lack acetylene-specific compatibility evidence.", "Determine whether a proposed use is supported by the grade, containment and equipment documentation.", "Escalate abnormal conditions or missing safety evidence to the applicable supplier or site procedure." ] }, "sources": [], "structure": { "bundles": [ { "id": "acetylene-identity", "name": "Acetylene identity", "description": "Establishes which chemical species the record describes and where its boundary ends.", "rationale": "Acetylene synonyms, commercial gas labels and acetylene-containing formulations must resolve to the correct substance without collapsing distinct products.", "layers": [ { "id": "molecular-recognition", "name": "Molecular recognition", "description": "Identifies ethyne through its molecular structure and authoritative identifiers.", "findings": [ { "id": "ethyne-identity-evidence", "name": "Ethyne identity evidence", "description": "Record evidence connecting the name acetylene to C2H2 and its carbon-carbon triple bond.", "questions": [ { "text": "Which authoritative record verifies the synonyms, molecular structure and chemical identifiers?", "kind": "provenance", "id": "ethyne-identity-evidence-q01" }, { "text": "What evidence distinguishes the material from ethylene or another fuel gas?", "kind": "definition", "id": "ethyne-identity-evidence-q02" } ] } ] }, { "id": "substance-formulation-boundary", "name": "Substance and formulation boundary", "description": "Separates the acetylene species from products, carriers and mixtures containing it.", "findings": [ { "id": "record-subject", "name": "Record subject", "description": "Identify whether an observation concerns acetylene itself, a sampled gas stream or a supplied formulation.", "questions": [ { "text": "Does this record describe the chemical species, a material lot or an acetylene-containing mixture?", "kind": "boundary", "id": "record-subject-q01" }, { "text": "Which solvent, carrier or additional gas belongs to a linked formulation rather than to acetylene's molecular identity?", "kind": "boundary", "id": "record-subject-q02" } ] } ] } ] }, { "id": "grade-and-contamination", "name": "Grade and contamination", "description": "Captures the evidence needed to assess the composition of an acetylene lot.", "rationale": "Acetylene identity alone cannot establish suitability when impurities and solvent carryover affect the intended application.", "layers": [ { "id": "grade-acceptance", "name": "Grade acceptance", "description": "Connects supplier grade claims to measurable requirements.", "findings": [ { "id": "purity-specification", "name": "Purity specification", "description": "Record the declared grade, acetylene assay and the specification against which the lot is assessed.", "questions": [ { "text": "Which specification defines this acetylene grade and its acceptance limits?", "kind": "provenance", "id": "purity-specification-q01" }, { "text": "What acetylene concentration was measured, on what basis and with what uncertainty?", "kind": "measurement", "id": "purity-specification-q02" } ] } ] }, { "id": "impurities-and-carryover", "name": "Impurities and carryover", "description": "Examines contaminants relevant to the source and supply arrangement.", "findings": [ { "id": "lot-contaminant-evidence", "name": "Lot contaminant evidence", "description": "Record testing for relevant contaminants, including moisture, phosphine, hydrogen sulfide and carrier-solvent carryover where applicable.", "questions": [ { "text": "Which contaminants were tested, at what concentrations and detection limits?", "kind": "measurement", "id": "lot-contaminant-evidence-q01" }, { "text": "Does the sample represent the delivered gas under the intended withdrawal conditions?", "kind": "provenance", "id": "lot-contaminant-evidence-q02" }, { "text": "Which application requirements remain unverified because an impurity was not measured?", "kind": "action", "id": "lot-contaminant-evidence-q03" } ] } ] } ] }, { "id": "phase-and-supply-state", "name": "Phase and supply state", "description": "Describes acetylene's physical condition and the context required to interpret its properties.", "rationale": "Free gas and dissolved supply states require different interpretations, and transition values are meaningless without their pressure conditions.", "layers": [ { "id": "conditioned-properties", "name": "Conditioned properties", "description": "Associates observations and reference constants with explicit conditions.", "findings": [ { "id": "phase-property-context", "name": "Phase and property context", "description": "Record phase, temperature and pressure alongside density, solubility or transition data.", "questions": [ { "text": "What phase is present at the recorded temperature and absolute pressure?", "kind": "measurement", "id": "phase-property-context-q01" }, { "text": "Does each reported transition temperature denote melting, boiling or sublimation, and at what pressure?", "kind": "measurement", "id": "phase-property-context-q02" } ] } ] }, { "id": "dissolved-supply", "name": "Dissolved supply", "description": "Links dissolved acetylene to the solvent and containment system that determine its supplied state.", "findings": [ { "id": "dissolved-gas-context", "name": "Dissolved gas context", "description": "Record whether acetylene is supplied dissolved and reference the documented solvent and porous-mass arrangement.", "questions": [ { "text": "Is the acetylene free gas or dissolved in a documented solvent?", "kind": "definition", "id": "dissolved-gas-context-q01" }, { "text": "Which linked supply-system record establishes the solvent, porous mass and applicable delivery constraints?", "kind": "provenance", "id": "dissolved-gas-context-q02" }, { "text": "Which observations are needed to assess available acetylene without treating cylinder pressure alone as inventory?", "kind": "measurement", "id": "dissolved-gas-context-q03" } ] } ] } ] }, { "id": "reactivity-and-compatibility", "name": "Reactivity and compatibility", "description": "Distinguishes acetylene's combustion, decomposition and contact-material concerns.", "rationale": "A generic flammable-gas description does not capture the separate evidence needed for acetylene stability and compatibility.", "layers": [ { "id": "combustion-and-decomposition", "name": "Combustion and decomposition", "description": "Assesses oxidizer-related hazards separately from decomposition behaviour.", "findings": [ { "id": "distinct-reaction-hazards", "name": "Distinct reaction hazards", "description": "Require separate evidence for combustion conditions and decomposition susceptibility in the actual system.", "questions": [ { "text": "Which documented conditions govern combustion risk for this acetylene-containing atmosphere?", "kind": "measurement", "id": "distinct-reaction-hazards-q01" }, { "text": "What authoritative evidence addresses decomposition under the proposed pressure, temperature and confinement?", "kind": "provenance", "id": "distinct-reaction-hazards-q02" }, { "text": "Which conditions require stopping use and following the applicable emergency procedure?", "kind": "action", "id": "distinct-reaction-hazards-q03" } ] } ] }, { "id": "contact-materials", "name": "Contact materials", "description": "Examines wetted materials and possible reactive deposits.", "findings": [ { "id": "acetylene-contact-compatibility", "name": "Acetylene contact compatibility", "description": "Require acetylene-specific compatibility evidence for metals, alloys, seals and other exposed materials, including assessment of acetylide formation where relevant.", "questions": [ { "text": "What are the exact compositions of the materials contacting acetylene?", "kind": "measurement", "id": "acetylene-contact-compatibility-q01" }, { "text": "Which authoritative compatibility guidance covers those materials under the actual conditions?", "kind": "provenance", "id": "acetylene-contact-compatibility-q02" }, { "text": "Is there evidence of deposits or contamination that requires specialist assessment before further use?", "kind": "action", "id": "acetylene-contact-compatibility-q03" } ] } ] } ] }, { "id": "use-and-safety-evidence", "name": "Use and safety evidence", "description": "Connects a particular acetylene supply to application requirements and governing safety records.", "rationale": "An agent needs a defensible basis for use decisions that accounts for grade, delivery conditions and jurisdiction.", "layers": [ { "id": "application-fit", "name": "Application fit", "description": "Assesses suitability for a specified fuel, analytical or chemical-feedstock use.", "findings": [ { "id": "supported-use-decision", "name": "Supported use decision", "description": "Connect the intended use to the lot specification and documented supply and equipment requirements.", "questions": [ { "text": "What acetylene purity, impurity and delivery requirements does the intended application impose?", "kind": "definition", "id": "supported-use-decision-q01" }, { "text": "Does the available evidence support this lot and supply arrangement for that use?", "kind": "action", "id": "supported-use-decision-q02" }, { "text": "Which equipment or process decisions must be resolved in linked models?", "kind": "boundary", "id": "supported-use-decision-q03" } ] } ] }, { "id": "applicable-safety-records", "name": "Applicable safety records", "description": "Ties classification and exposure assessment to the supplied form and jurisdiction.", "findings": [ { "id": "classification-and-exposure-basis", "name": "Classification and exposure basis", "description": "Record applicable hazard classifications, transport identity and exposure criteria without assuming that all acetylene supplies share one regulatory treatment.", "questions": [ { "text": "Which current safety data sheet and jurisdiction-specific classifications apply to this supplied form?", "kind": "provenance", "id": "classification-and-exposure-basis-q01" }, { "text": "Which exposure criteria address acetylene, oxygen displacement and measured impurities in this setting?", "kind": "measurement", "id": "classification-and-exposure-basis-q02" }, { "text": "What missing classification or exposure evidence prevents the proposed use from being assessed?", "kind": "action", "id": "classification-and-exposure-basis-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 recall-based information; no sources were consulted. Confirm current regulatory classifications and applicable standard editions before operational use.", "At atmospheric pressure acetylene sublimes rather than having an ordinary liquid boiling point; verify pressure conditions when comparing reported phase-transition temperatures.", "Commercial grade names and purity specifications vary by supplier; verify impurity limits, solvent carryover and applicable occupational exposure requirements." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of acetylene 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": [ "Technical-grade acetylene", "High-purity acetylene", "Acetylene supplied dissolved in acetone", "Acetylene supplied dissolved in dimethylformamide" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of acetylene 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": "74-86-2", "note": "Identifies acetylene as a chemical substance." }, { "scheme": "PubChem CID", "value_or_pattern": "6326", "note": "Compound identifier for acetylene." }, { "scheme": "EC number", "value_or_pattern": "200-816-9", "note": "European chemical inventory identifier." }, { "scheme": "UN dangerous goods number", "value_or_pattern": "UN 1001", "note": "Applies to acetylene, dissolved; identifies a transport form rather than every form of the substance." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of acetylene 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) provides the framework for communicating acetylene's physical hazards.", "United Nations Recommendations on the Transport of Dangerous Goods, Model Regulations, address dissolved acetylene under UN 1001.", "ISO 3807, issued by the International Organization for Standardization, covers basic requirements and type testing for acetylene cylinders." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of acetylene 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": [ "Fuel gas for oxyacetylene welding, brazing and cutting.", "Fuel for flame atomic absorption spectrometry.", "Chemical feedstock for products including vinyl chloride and vinyl acetate in acetylene-based manufacturing routes.", "Production of acetylene black, a conductive carbon material.", "Illumination in calcium-carbide lamps." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of acetylene 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": "26.04", "unit": "g/mol" }, { "quantity": "Sublimation temperature at approximately 101.3 kPa", "typical_range": "approximately -84", "unit": "°C" }, { "quantity": "Triple-point temperature", "typical_range": "approximately -80.8", "unit": "°C" }, { "quantity": "Gas density at 20 °C and approximately 101.3 kPa", "typical_range": "approximately 1.08", "unit": "kg/m³" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of acetylene 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": [ "Leaks can form readily ignitable mixtures with air.", "Acetylene can undergo violent exothermic decomposition without oxygen, particularly under elevated pressure or when heated.", "Contact with certain metals or their compounds, notably copper and silver, can produce sensitive explosive acetylides.", "High concentrations can displace oxygen and cause asphyxiation.", "Fire exposure can initiate decomposition inside a cylinder, creating a risk of delayed rupture." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of acetylene 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": [ "Transport, workplace and cylinder requirements depend on national or regional implementation of dangerous-goods and chemical-safety frameworks.", "Its importance as a chemical feedstock varies with regional access to coal, calcium carbide and competing petrochemical feedstocks." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of acetylene 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": "Ethylene", "difference": "Ethylene is C₂H₄ with a carbon-carbon double bond; acetylene is C₂H₂ with a triple bond." }, { "name": "Ethane", "difference": "Ethane is the saturated hydrocarbon C₂H₆, with a carbon-carbon single bond." }, { "name": "Calcium carbide", "difference": "Calcium carbide is the solid compound CaC₂ that generates acetylene on reaction with water; it is a precursor, not acetylene itself." }, { "name": "Dissolved acetylene cylinder product", "difference": "The supplied product includes acetylene, a solvent and a cylinder containing porous material; the registered substance is the C₂H₂ component." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of acetylene this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which authoritative identity records should establish acetylene's CAS number, EC number, PubChem CID and accepted synonyms?", "Which sources provide reliable phase-transition and other physical-property values with explicit pressure, temperature and uncertainty?", "Which grade specifications and impurity limits apply to the intended applications, including solvent carryover from dissolved supply?", "Which authoritative guidance establishes decomposition constraints and material compatibility for the actual containment and delivery system?", "Which current jurisdiction-specific hazard classifications, transport entries and exposure criteria apply to the supplied form?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 19, "questions": 35 } }, "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 acetylene, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise acetylene, assess a particular material lot and its containment state, and determine which uses or interventions require further evidence.", "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: Acetylene-13C2.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 77 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 acetylene, 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": [ "Acetylene-13C2" ] } ], "standing": "Described in 77 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 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 acetylene from another, and a acetylene 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 acetylene, 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 acetylene, 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 acetylene 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 acetylene, 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 acetylene, 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 acetylene 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 acetylene 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 acetylene, 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 acetylene, 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 acetylene 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 acetylene from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a acetylene, 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 acetylene, 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 acetylene 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 acetylene 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 acetylene, 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 acetylene, 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 acetylene 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 acetylene is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a acetylene, 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 acetylene, 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 acetylene 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 acetylene is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a acetylene, 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 acetylene, 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 acetylene 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 acetylene 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 acetylene is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a acetylene, 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 acetylene, 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 acetylene 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 acetylene 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 acetylene, 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 acetylene, 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 acetylene 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 acetylene 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 acetylene between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a acetylene, 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 acetylene, 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 acetylene 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 acetylene, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a acetylene 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 acetylene, 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 acetylene, 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 acetylene 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 acetylene 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 acetylene is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a acetylene performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a acetylene, 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 acetylene, 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 acetylene 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 acetylene.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a acetylene at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a acetylene, 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 acetylene, 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 acetylene 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 acetylene there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a acetylene, 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 acetylene, 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 acetylene 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 acetylene 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 acetylene 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 acetylene 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 acetylene 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 acetylene, 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 acetylene 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 acetylene 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 acetylene 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 acetylene, 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 acetylene 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 acetylene and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a acetylene, 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 acetylene, 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 acetylene 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 acetylene is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a acetylene, 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 acetylene, 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 acetylene 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 } } } }