{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T08:32:13Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 14.9, "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: 01a094bd-9398-7733-926d-bce94ab830b1\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: ceric fluoride\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1001 ", "usd": 0.0, "recall": true }, "codex": { "seconds": 87.0, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a094bd-9387-7142-b8f2-56119c394fe8\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: ceric fluoride\nRegistry id: vr.tr.ceric-fluoride\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (no" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:52:56+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "standards_and_regulation", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:26+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q15632777", "registryId": "vr.tr.ceric-fluoride", "name": "ceric fluoride", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q15632777/", "model": { "registry_id": "vr.tr.ceric-fluoride", "name": "ceric fluoride", "purpose": "Enable an agent to recognize ceric fluoride, assess the composition and condition of a specific sample, and determine whether evidence supports its intended handling or use.", "definition": "Ceric fluoride, or cerium(IV) fluoride, is an inorganic compound with formula CeF4 in which cerium has the formal oxidation state +4.", "scope_statement": "This model owns the substance identity and sample-level assessment of ceric fluoride, registry entry vr.tr.ceric-fluoride in PHY / PHY.MAT, including oxidation state, hydration, purity, physical condition, transformation history and evidence-backed constraints.", "in_scope": [ "Cerium(IV) fluoride identity and its distinction from other cerium fluorides", "Anhydrous and hydrated sample descriptions without assuming that their identifiers or properties are interchangeable", "Cerium oxidation-state balance, fluoride stoichiometry and impurities", "Physical phase, particle form and properties under recorded conditions", "Chemical stability, compatibility and evidence of transformation", "Grade-specific suitability and applicable hazard documentation" ], "out_of_scope": [ "Cerium(III) fluoride as an independently characterized substance", "Cerium oxides, oxyfluorides and coordination compounds formed from ceric fluoride", "Commercial packaging, pricing and supplier organizations", "Manufacturing equipment and detailed synthesis procedures", "Devices or formulations containing ceric fluoride", "Facility-wide exposure controls and waste-treatment systems" ], "distinguishing_features": [ "The intended binary composition is CeF4 with cerium formally in oxidation state +4; a generic label reading 'cerium fluoride' does not establish this identity.", "Separate determination of cerium valence and fluoride-to-cerium ratio distinguishes the target from Ce(III)-bearing or compositionally mixed material.", "Water-content and phase evidence distinguish anhydrous material from hydrated material; the nominal CeF4 label alone is insufficient.", "Oxygen analysis interpreted alongside phase evidence distinguishes water-bearing material from oxide or oxyfluoride contamination.", "Ligand and structural evidence distinguish ceric fluoride from a coordination product that retains a CeF4 unit." ], "characteristics": [ { "name": "Substance identity", "kind": "category", "unit_or_values": "Cerium(IV) fluoride; nominal formula CeF4; form-qualified identifiers", "why_it_matters": "Establishes what the registry entry denotes before attaching sample properties or supplier records." }, { "name": "Cerium(IV) fraction", "kind": "measurement", "unit_or_values": "mol% of total cerium, with method and uncertainty", "why_it_matters": "Distinguishes the intended oxidation state from reduction products or mixed-valence contamination." }, { "name": "Fluoride-to-cerium ratio", "kind": "measurement", "unit_or_values": "mol F/mol Ce; nominal target 4", "why_it_matters": "Tests composition independently of the product name and total cerium assay." }, { "name": "Hydration and moisture", "kind": "measurement", "unit_or_values": "Mass% water and, where justified, x in CeF4·xH2O", "why_it_matters": "Changes the sample mass basis and may affect phase, stability and use." }, { "name": "Assay basis and impurity profile", "kind": "measurement", "unit_or_values": "Mass% assay; mg/kg impurities; as-received or dry basis; detection limits", "why_it_matters": "Prevents a trace-metals purity claim from being mistaken for complete chemical or phase purity." }, { "name": "Phase identity", "kind": "category", "unit_or_values": "Measured phase assignments and phase fractions where available", "why_it_matters": "Tests whether the sample is one characterized material or a mixture." }, { "name": "Particle form", "kind": "measurement", "unit_or_values": "Particle-size distribution in µm and specific surface area in m²/g, with methods", "why_it_matters": "Supports judgments about dust generation, sampling and reaction accessibility." }, { "name": "Thermal behavior", "kind": "measurement", "unit_or_values": "Transition temperatures in °C or K, mass change in %, atmosphere and heating rate", "why_it_matters": "Separates dehydration, phase transition and decomposition from an asserted melting or boiling point." }, { "name": "Chemical integrity", "kind": "state", "unit_or_values": "Verified within specification; changed; suspected changed; unassessed", "why_it_matters": "Connects storage or processing history to the need for reassessment." }, { "name": "Applicable safety evidence", "kind": "relation", "unit_or_values": "Links to form-specific SDS, jurisdictional classifications and exposure-limit sources, with dates", "why_it_matters": "Keeps handling decisions tied to the actual material and applicable evidence." } ], "affordances": [ "Resolve a ceric fluoride label to a form-qualified chemical identity.", "Compare a lot's valence, composition, hydration and impurity evidence against an intended-use specification.", "Calculate material quantities using the verified assay and hydration basis.", "Identify when storage or processing history requires renewed chemical or phase analysis.", "Screen a proposed contact medium or thermal treatment against documented compatibility evidence.", "Route handling and disposal decisions to applicable safety records while flagging unresolved information." ], "agent_conduct": { "may": [ "Explain cerium(IV) fluoride and its role as a fluorinating agent in general terms.", "Report hazards and handling rules from safety data sheets." ], "must_not": [ "Handle it without the protection the safety data sheet requires.", "Expose it to moisture or acids in a way that releases hydrogen fluoride.", "Provide preparation or reaction procedures to people outside a supervised laboratory.", "Dispose of fluoride waste against local rules." ], "requires_human": [ "Approving storage, transfer or disposal of the compound." ] }, "ethics": { "considerations": [ "Fluorinating agents can cause severe injuries to workers.", "Hazardous waste must be handled so that it does not harm others." ], "affected_parties": [ "Laboratory workers", "Waste handlers", "Emergency responders" ] }, "owners": { "steward": "The laboratory or business that holds it; chemical safety authorities regulate supply and use.", "master_systems": [] }, "visual_identification": [ "Identified by container label, chemical name and identifier, and certificate of analysis rather than by appearance alone." ], "failure_modes_and_hazards": [ "Release of hydrogen fluoride.", "Oxidizing reactions with organic material.", "Fluoride toxicity." ], "standards_and_regulation": [ "Globally Harmonized System of Classification and Labelling of Chemicals (GHS), United Nations." ], "what_it_is_for": [ "Ceric fluoride is encountered in specialist inorganic chemistry laboratories and research on cerium compounds and fluoride materials.", "It is used as a chemical starting material or research sample where cerium oxidation state and fluoride composition are relevant." ] }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q15632777: ceric fluoride", "url": "https://www.wikidata.org/wiki/Q15632777", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Cerium(IV) fluoride", "url": "https://en.wikipedia.org/wiki/Cerium%28IV%29_fluoride", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "ceric-fluoride-identity", "name": "Ceric fluoride identity", "description": "Establish the chemical meaning of the registry name and prevent conflation with adjacent substances.", "rationale": "Cerium valence and material form must be resolved before identifiers and properties can be attached reliably.", "layers": [ { "id": "formula-and-valence", "name": "Formula and valence", "description": "Anchor the entry to its nominal composition and cerium oxidation state.", "findings": [ { "id": "cerium-iv-fluoride-anchor", "name": "Cerium(IV) fluoride anchor", "description": "The nominal identity is CeF4, represented as cerium(4+) tetrafluoride in [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/cerium_4_-tetrafluoride); a sample still requires evidence that it matches this identity.", "questions": [ { "text": "Does the supplied name explicitly identify cerium(IV) fluoride rather than unspecified cerium fluoride?", "kind": "definition", "id": "cerium-iv-fluoride-anchor-q01" }, { "text": "What independent evidence establishes cerium valence and the fluoride-to-cerium ratio?", "kind": "measurement", "id": "cerium-iv-fluoride-anchor-q02" } ] } ] }, { "id": "identifiers-and-form-boundaries", "name": "Identifiers and form boundaries", "description": "Reconcile chemical identifiers with hydration and coordination state.", "findings": [ { "id": "form-qualified-crosswalk", "name": "Form-qualified identifier crosswalk", "description": "Maintain the provenance and material scope of each CAS, PubChem and EC identifier instead of equating records solely through matching names.", "questions": [ { "text": "Which authoritative records establish the CAS, PubChem and EC identifiers for the material form being modeled?", "kind": "provenance", "id": "form-qualified-crosswalk-q01" }, { "text": "Does each linked record describe anhydrous CeF4, a hydrate, a coordination compound or an unspecified commercial material?", "kind": "boundary", "id": "form-qualified-crosswalk-q02" } ] } ] } ] }, { "id": "composition-and-grade", "name": "Composition and grade", "description": "Determine what fraction of a lot is the intended ceric fluoride material.", "rationale": "Total cerium, trace-metal purity and nominal formula do not individually establish useful chemical purity.", "layers": [ { "id": "valence-and-stoichiometry", "name": "Valence and stoichiometry", "description": "Assess cerium oxidation state and elemental balance together.", "findings": [ { "id": "independent-composition-tests", "name": "Independent composition tests", "description": "Require complementary measurements capable of revealing Ce(III)-bearing material or departures from the nominal fluoride balance.", "questions": [ { "text": "What proportion of the total cerium is measured as Ce(IV), and what uncertainty accompanies that result?", "kind": "measurement", "id": "independent-composition-tests-q01" }, { "text": "Does the measured fluoride-to-cerium ratio support CeF4 after accounting for water and identified impurities?", "kind": "measurement", "id": "independent-composition-tests-q02" } ] } ] }, { "id": "water-and-impurity-basis", "name": "Water and impurity basis", "description": "Make hydration and assay conventions explicit.", "findings": [ { "id": "hydration-aware-assay", "name": "Hydration-aware assay", "description": "Hydrated CeF4 has been reported with water content dependent on drying history, so hydration must be measured rather than inferred from the formula label. See the [primary coordination study](https://eprints.soton.ac.uk/368637/1/1-s2.0-S0022113913003412-main.pdf_tid_3D61d32406-3fdf-11e4-bbae-00000aab0f27_26acdnat_3D1411119118_cbcfbe33f6663babad93bac8cd9a8098).", "questions": [ { "text": "What water content is measured, and can the method distinguish adsorbed moisture from structurally associated water?", "kind": "measurement", "id": "hydration-aware-assay-q01" }, { "text": "Is the stated purity based on trace metals, total compound assay or phase analysis, and is it reported on a dry or as-received basis?", "kind": "definition", "id": "hydration-aware-assay-q02" }, { "text": "Which oxygen-bearing, residual reagent or other rare-earth impurities matter for the proposed use?", "kind": "boundary", "id": "hydration-aware-assay-q03" } ] } ] } ] }, { "id": "phase-and-physical-behavior", "name": "Phase and physical behavior", "description": "Describe the material's observed structure, morphology and condition-dependent constants.", "rationale": "A nominal CeF4 composition does not identify a sample's phase assemblage or establish transferable physical-property values.", "layers": [ { "id": "solid-phase-and-morphology", "name": "Solid phase and morphology", "description": "Connect structural evidence to the actual lot and its physical form.", "findings": [ { "id": "phase-supported-sample-description", "name": "Phase-supported sample description", "description": "Use phase and particle measurements to distinguish characterized ceric fluoride from mixed or physically altered material.", "questions": [ { "text": "What diffraction or complementary evidence identifies the ceric fluoride phase and any secondary phases?", "kind": "measurement", "id": "phase-supported-sample-description-q01" }, { "text": "What particle-size distribution, agglomeration state and surface area characterize the sample being assessed?", "kind": "measurement", "id": "phase-supported-sample-description-q02" } ] } ] }, { "id": "conditional-physical-properties", "name": "Conditional physical properties", "description": "Qualify density and thermal observations by material form and experimental conditions.", "findings": [ { "id": "thermal-event-and-density-interpretation", "name": "Thermal event and density interpretation", "description": "Do not assign an unqualified melting point, boiling point or density when the source does not resolve the material form or measured event.", "questions": [ { "text": "Which observed thermal events represent water loss, phase change, melting or chemical decomposition, under what atmosphere and pressure?", "kind": "measurement", "id": "thermal-event-and-density-interpretation-q01" }, { "text": "Does each reported density describe crystal density, skeletal density or bulk powder density, and at what temperature?", "kind": "definition", "id": "thermal-event-and-density-interpretation-q02" } ] } ] } ] }, { "id": "chemical-integrity-and-transformation", "name": "Chemical integrity and transformation", "description": "Track whether ceric fluoride retains its identity during storage, contact or processing.", "rationale": "Valence change, water interaction and ligand coordination can invalidate assumptions based on the starting material.", "layers": [ { "id": "environmental-stability", "name": "Environmental stability", "description": "Relate sample history to evidence of chemical change.", "findings": [ { "id": "exposure-linked-integrity", "name": "Exposure-linked integrity", "description": "Record humidity, temperature and contact history as conditions to investigate rather than assuming a universal stability window.", "questions": [ { "text": "What evidence establishes the effects of humidity and temperature on the specific anhydrous or hydrated material?", "kind": "provenance", "id": "exposure-linked-integrity-q01" }, { "text": "Which changes in water content, cerium valence or phase composition require the lot to be reassessed?", "kind": "action", "id": "exposure-linked-integrity-q02" } ] } ] }, { "id": "reaction-and-speciation-boundaries", "name": "Reaction and speciation boundaries", "description": "Distinguish physical transfer into a medium from chemical conversion.", "findings": [ { "id": "medium-dependent-identity", "name": "Medium-dependent identity", "description": "Treat a reported dissolved or processed material as potentially transformed until its cerium valence and chemical species are established.", "questions": [ { "text": "Does the proposed medium preserve the starting material, produce a coordinated species or cause another chemical transformation?", "kind": "boundary", "id": "medium-dependent-identity-q01" }, { "text": "What evidence supports the proposed redox or fluoride-transfer role under the intended conditions?", "kind": "provenance", "id": "medium-dependent-identity-q02" }, { "text": "Which identified products should be linked to neighboring substance models once ceric fluoride is consumed?", "kind": "action", "id": "medium-dependent-identity-q03" } ] } ] } ] }, { "id": "safe-and-qualified-use", "name": "Safe and qualified use", "description": "Connect form-specific evidence to handling constraints and acceptance for an intended application.", "rationale": "Neither a generic fluoride classification nor a ceric fluoride product name establishes that a particular lot is safe or suitable for a proposed operation.", "layers": [ { "id": "hazard-evidence", "name": "Hazard evidence", "description": "Resolve applicable safety information without transferring classifications between unlike material forms.", "findings": [ { "id": "form-specific-safety-record", "name": "Form-specific safety record", "description": "Attach current safety evidence to the actual composition, physical form and jurisdiction; retain gaps explicitly.", "questions": [ { "text": "Which SDS and jurisdictional records apply to this lot, and what GHS and transport classifications do they establish?", "kind": "provenance", "id": "form-specific-safety-record-q01" }, { "text": "Are any cited exposure limits specific to ceric fluoride or broader fluoride categories, and what reporting basis and averaging period apply?", "kind": "boundary", "id": "form-specific-safety-record-q02" }, { "text": "What documented dust, incompatibility and decomposition-product hazards constrain the intended operation?", "kind": "action", "id": "form-specific-safety-record-q03" } ] } ] }, { "id": "application-acceptance", "name": "Application acceptance", "description": "Translate the intended use into explicit material acceptance criteria.", "findings": [ { "id": "lot-fitness-decision", "name": "Lot fitness decision", "description": "Judge suitability through application-specific limits for valence, hydration, impurities and physical form, supported by representative lot evidence.", "questions": [ { "text": "What limits on Ce(IV) fraction, water, impurities and particle form must this lot meet for the intended use?", "kind": "action", "id": "lot-fitness-decision-q01" }, { "text": "Which certificate and independent measurements demonstrate that the sampled lot meets those limits?", "kind": "provenance", "id": "lot-fitness-decision-q02" }, { "text": "What missing or out-of-specification evidence requires holding the lot for further assessment?", "kind": "action", "id": "lot-fitness-decision-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 a recall-based description; no sources were consulted.", "Verify CAS, EC and PubChem identifiers, solid-state forms, hydration and thermal properties before adding them.", "Consult a substance-specific safety data sheet for fluoride hazards, moisture reactivity, storage requirements and applicable hazard classifications." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of ceric fluoride 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": "CeF4", "note": "Specifies one cerium atom for every four fluorine atoms." }, { "scheme": "Stock nomenclature", "value_or_pattern": "cerium(IV) fluoride", "note": "The traditional adjective 'ceric' denotes cerium in oxidation state +4." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of ceric fluoride 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": [ "Research on cerium(IV) chemistry and inorganic fluorides." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of ceric fluoride 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": "216.11", "unit": "g/mol" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of ceric fluoride 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": [ "Reduction of cerium(IV) to cerium(III) changes the compound's chemical identity and can compromise applications requiring the +4 oxidation state." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of ceric fluoride 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": "Cerous fluoride", "difference": "Cerous fluoride is cerium(III) fluoride, CeF3; ceric fluoride is cerium(IV) fluoride, CeF4." }, { "name": "Cerium(IV) oxide", "difference": "Cerium(IV) oxide is CeO2, containing oxygen rather than fluorine while retaining cerium's formal +4 oxidation state." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of ceric fluoride this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which CAS and EC records should anchor the anhydrous identity, and how should the multiple PubChem representations and hydrate records be reconciled?", "Which hydrated and solid-phase forms are experimentally established, and how should they be represented within this registry entry without creating unsupported subdivisions?", "Which primary measurements establish density, thermal transitions and decomposition behavior for explicitly characterized ceric fluoride forms?", "Under what conditions do water, solvents, heat and reducing environments change ceric fluoride's valence or composition, and which products are verified?", "Which current form-specific hazard classifications, exposure-limit interpretations and application specifications have sufficient evidence to govern an agent's decisions?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 16, "questions": 30 } }