{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T10:50:15Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 19.4, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0953c-4330-7bb0-99bd-17dfbdc1bce6\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: L-fucitol\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 regis", "usd": 0.0, "recall": true }, "codex": { "seconds": 66.4, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0953c-432e-72e1-ac2d-a197c0e2b3a9\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: L-fucitol\nRegistry id: vr.tr.l-fucitol\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nCont" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:51:02+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:29+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q3090510", "registryId": "vr.tr.l-fucitol", "name": "L-fucitol", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q3090510/", "model": { "registry_id": "vr.tr.l-fucitol", "name": "L-fucitol", "purpose": "Enable an agent to identify L-fucitol, assess the identity and condition of a sample, and determine whether it is suitable for a specified analytical or chemical use.", "definition": "L-fucitol is the six-carbon deoxy sugar alcohol formed by reduction of the aldehyde group of L-fucose to a primary alcohol, retaining the configuration of its existing stereocentres.", "scope_statement": "This model owns the stereochemically defined substance L-fucitol, registered as vr.tr.l-fucitol in PHY / PHY.MAT, and the sample attributes needed to assess its purity, physical state, handling and fitness for use.", "in_scope": [ "Molecular identity, absolute stereochemistry and verified identifiers", "Distinction from L-fucose, D-fucitol and other deoxyhexitols", "Chemical purity, stereochemical purity and preparation-related impurities", "Physical state and measured properties under stated conditions", "Analytical identification, chemical transformations and evidence supporting permitted uses", "Substance-specific hazard and regulatory evidence" ], "out_of_scope": [ "L-fucose as a separately registered sugar", "D-fucitol and other stereoisomers as independent substances", "Derivatized fucitol compounds as independent chemical identities", "Complete manufacturing processes and reactor operation", "Products, formulations and organisms containing L-fucitol" ], "distinguishing_features": [ "Match the stereochemically specified structure (2R,3S,4R,5S)-hexane-1,2,3,4,5-pentol, rather than accepting the name fucitol alone. [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/L-Fucitol)", "Confirm a six-carbon pentol with one methyl terminus and one hydroxymethyl terminus; distinguish this reduced structure from the carbonyl or cyclic hemiacetal forms of L-fucose.", "Use stereochemically discriminating evidence to distinguish L-fucitol from D-fucitol; molecular formula and ordinary mass measurement do not establish the enantiomer.", "Distinguish unmodified L-fucitol from its pentakis(trimethylsilyl) ether when interpreting derivatized analytical samples. [NIST derivative record](https://webbook.nist.gov/cgi/inchi?ID=U380137)" ], "characteristics": [ { "name": "Molecular composition", "kind": "category", "unit_or_values": "C6H14O5; molar mass 166.17 g/mol", "why_it_matters": "Supports composition checks and conversion between mass and amount of substance. [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/L-Fucitol)" }, { "name": "Absolute configuration", "kind": "category", "unit_or_values": "(2R,3S,4R,5S), using hexane-1,2,3,4,5-pentol numbering", "why_it_matters": "Defines the intended stereoisomer. [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/L-Fucitol)" }, { "name": "Identifier mapping", "kind": "relation", "unit_or_values": "vr.tr.l-fucitol; PubChem CID 445724; reported CAS 13074-06-1", "why_it_matters": "Connects registry, supplier and analytical records while preserving structure-based identity checks. [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/L-Fucitol)" }, { "name": "Chemical assay", "kind": "measurement", "unit_or_values": "Mass fraction % or mol fraction %, with method, uncertainty and as-received or dry basis", "why_it_matters": "Separates actual L-fucitol content from chromatographic peak-area purity." }, { "name": "Stereochemical purity", "kind": "measurement", "unit_or_values": "L-fucitol fraction among stereoisomers; enantiomeric excess % where applicable", "why_it_matters": "Prevents chemically similar stereoisomers from passing a purity assessment based on an achiral method." }, { "name": "Water and residual solvent content", "kind": "measurement", "unit_or_values": "Water mass %; named residual solvents in mg/kg", "why_it_matters": "Affects weighed concentration, drying requirements and suitability for water-sensitive transformations." }, { "name": "Physical presentation", "kind": "state", "unit_or_values": "Observed solid form or solution; temperature in °C; solvent and concentration when dissolved", "why_it_matters": "Determines how a sample can be weighed, dissolved, sampled and compared with property records." }, { "name": "Thermal behavior", "kind": "measurement", "unit_or_values": "Melting interval and decomposition onset in °C, with method and sample history", "why_it_matters": "Supports condition assessment without treating melting behavior alone as proof of identity." }, { "name": "Solubility", "kind": "measurement", "unit_or_values": "g/L or mol/L in a named solvent at a stated temperature", "why_it_matters": "Supports preparation of standards and reaction mixtures at achievable concentrations." }, { "name": "Hazard and regulatory evidence", "kind": "category", "unit_or_values": "Jurisdiction, source date, applicable classification and use restrictions; unknown when unverified", "why_it_matters": "Prevents missing classification data from being interpreted as evidence of safety or unrestricted use." } ], "affordances": [ "Reconcile a supplier label or database record against the stereochemically defined L-fucitol identity.", "Select complementary methods to assess connectivity, stereochemistry and sample purity.", "Calculate a standard-solution concentration using measured assay and water content.", "Assess whether a sample meets the purity and physical-condition requirements of a specified experiment.", "Track reduction, oxidation or derivatization through explicit relationships between L-fucitol and distinct precursor or product identities.", "Determine handling and use conditions from applicable evidence, leaving unsupported decisions unresolved." ], "agent_conduct": { "may": [ "Describe L-fucitol as the sugar alcohol of L-fucose from reliable chemical sources.", "Track samples in an authorized laboratory inventory with label and source." ], "must_not": [ "Report the identity, stereochemistry or purity of a sample without analysis.", "Confuse it with other deoxy sugar alcohols in records or orders.", "Present it as a sweetener or supplement with health benefits without evidence." ], "requires_human": [ "Supplying it for use in food or tests on people." ] }, "ethics": { "considerations": [ "Research results depend on reagents being exactly what their labels say.", "Novel food uses require safety evidence before people consume them." ], "affected_parties": [ "Researchers", "Consumers of novel food ingredients" ] }, "owners": { "steward": "Nobody owns the compound; the laboratory or supplier answers for each sample.", "master_systems": [] }, "visual_identification": [ "Usually a white crystalline solid in a labelled vial; identity needs analysis." ], "failure_modes_and_hazards": [ "Confusion with stereoisomers leads to wrong experimental results." ], "what_it_is_for": [ "L-fucitol is encountered in carbohydrate chemistry as the sugar alcohol corresponding to L-fucose.", "Research laboratories may use authenticated material in studies of deoxy sugars or as an analytical reference when the method specifically requires L-fucitol." ], "facets_not_applicable": { "interfaces": "No compound-specific standard or official classification is identified here, and applicable chemical requirements depend on jurisdiction and use." } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q3090510: L-fucitol", "url": "https://www.wikidata.org/wiki/Q3090510", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Fucitol", "url": "https://en.wikipedia.org/wiki/Fucitol", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "chemical-identity", "name": "Chemical identity", "description": "Establish what counts as L-fucitol and how its identity survives changes in naming and numbering.", "rationale": "A generic fucitol label or matching molecular formula can conceal a different stereoisomer.", "layers": [ { "id": "connectivity-and-configuration", "name": "Connectivity and configuration", "description": "Define the pentol skeleton and its four stereocenters.", "findings": [ { "id": "structure-based-identity", "name": "Structure-based identity", "description": "Recognition requires both the deoxyhexitol connectivity and the specified absolute configuration.", "questions": [ { "text": "Does the structure contain the expected methyl and hydroxymethyl termini and five hydroxyl groups?", "kind": "definition", "id": "structure-based-identity-q01" }, { "text": "What evidence establishes the absolute configuration rather than only the molecular formula or relative stereochemistry?", "kind": "provenance", "id": "structure-based-identity-q02" } ] } ] }, { "id": "names-and-neighbours", "name": "Names and neighbours", "description": "Resolve synonyms and exclude related sugars, stereoisomers and derivatives.", "findings": [ { "id": "identifier-reconciliation", "name": "Identifier reconciliation", "description": "Names and identifiers must resolve to the same stereochemically explicit structure before records are combined.", "questions": [ { "text": "Does each cited identifier resolve specifically to L-fucitol rather than unspecified fucitol or D-fucitol?", "kind": "provenance", "id": "identifier-reconciliation-q01" }, { "text": "Does the record describe unmodified L-fucitol, L-fucose, a mixture or a covalent derivative?", "kind": "boundary", "id": "identifier-reconciliation-q02" } ] } ] } ] }, { "id": "sample-composition-and-authentication", "name": "Sample composition and authentication", "description": "Determine whether a physical sample contains the intended substance at the required chemical and stereochemical purity.", "rationale": "Identity, assay and stereochemical purity answer different questions and require distinct evidence.", "layers": [ { "id": "analytical-identity", "name": "Analytical identity", "description": "Combine evidence for molecular structure with evidence capable of distinguishing stereoisomers.", "findings": [ { "id": "complementary-identification", "name": "Complementary identification", "description": "Analytical acceptance must state which identity ambiguities each method resolves.", "questions": [ { "text": "Which NMR, mass-spectrometric or other observations support the L-fucitol skeleton, and what alternatives remain unresolved?", "kind": "measurement", "id": "complementary-identification-q01" }, { "text": "Which validated chiral method or traceable stereochemical evidence distinguishes the sample from D-fucitol?", "kind": "measurement", "id": "complementary-identification-q02" } ] } ] }, { "id": "assay-and-impurities", "name": "Assay and impurities", "description": "Quantify L-fucitol content and impurities relevant to its preparation and intended use.", "findings": [ { "id": "use-relevant-composition", "name": "Use-relevant composition", "description": "Preparation history guides impurity testing without establishing purity by itself.", "questions": [ { "text": "What are the measured assay, water content and stereoisomer profile, and on what reporting basis?", "kind": "measurement", "id": "use-relevant-composition-q01" }, { "text": "If the material was prepared by reducing L-fucose, what evidence excludes unacceptable residual L-fucose and route-specific reagent or catalyst residues?", "kind": "provenance", "id": "use-relevant-composition-q02" } ] } ] } ] }, { "id": "physical-state-and-preparation", "name": "Physical state and preparation", "description": "Record the sample conditions that govern weighing, dissolution and comparison with measured properties.", "rationale": "Unqualified property values cannot establish whether a particular L-fucitol sample is suitable for preparation or storage.", "layers": [ { "id": "solid-and-thermal-state", "name": "Solid and thermal state", "description": "Connect observed solid condition and thermal behavior to the characterized sample.", "findings": [ { "id": "conditioned-property-record", "name": "Conditioned property record", "description": "Thermal measurements need sample provenance and conditions before they can support an acceptance decision.", "questions": [ { "text": "What melting interval or decomposition behavior was measured, using which method and sample pretreatment?", "kind": "measurement", "id": "conditioned-property-record-q01" }, { "text": "Do drying history, residual solvent or observed solid-form differences explain disagreement with a reference measurement?", "kind": "provenance", "id": "conditioned-property-record-q02" } ] } ] }, { "id": "solution-preparation", "name": "Solution preparation", "description": "Determine achievable concentration and actual L-fucitol content in a prepared solution.", "findings": [ { "id": "concentration-and-solubility", "name": "Concentration and solubility", "description": "A weighed amount becomes a reliable solution concentration only when composition, dissolution and preparation conditions are accounted for.", "questions": [ { "text": "What solubility evidence supports the target concentration in the chosen solvent at the preparation and use temperatures?", "kind": "measurement", "id": "concentration-and-solubility-q01" }, { "text": "How should the weighed mass be corrected for assay and water content, and how will complete dissolution be verified?", "kind": "action", "id": "concentration-and-solubility-q02" } ] } ] } ] }, { "id": "transformations-and-use-decisions", "name": "Transformations and use decisions", "description": "Connect L-fucitol to analytical derivatives, chemical transformations and evidence governing a proposed use.", "rationale": "A derivative signal, a reported biological role and a verified permission to use the substance are distinct forms of evidence.", "layers": [ { "id": "reaction-and-derivative-boundaries", "name": "Reaction and derivative boundaries", "description": "Preserve substance identity when L-fucitol is produced, consumed or derivatized.", "findings": [ { "id": "parent-product-traceability", "name": "Parent-product traceability", "description": "Derivative measurements and transformation records must identify the parent substance separately from the products actually observed.", "questions": [ { "text": "Does the analytical signal represent unmodified L-fucitol or a named derivative, and what validates its assignment to the parent?", "kind": "boundary", "id": "parent-product-traceability-q01" }, { "text": "What evidence establishes conversion, product identity and stereochemical outcome for a proposed reduction, oxidation or derivatization?", "kind": "action", "id": "parent-product-traceability-q02" } ] } ] }, { "id": "handling-and-use-evidence", "name": "Handling and use evidence", "description": "Evaluate sample-specific handling information and the evidence needed for the intended application.", "findings": [ { "id": "evidence-limited-use", "name": "Evidence-limited use", "description": "Suitability depends on the intended use, sample quality and applicable evidence; a chemical identity record alone does not establish it.", "questions": [ { "text": "Which current safety data and jurisdiction-specific records apply to this L-fucitol identity, grade and physical presentation?", "kind": "provenance", "id": "evidence-limited-use-q01" }, { "text": "What purity, stability and qualification evidence is required before this sample can serve the proposed analytical, synthetic or biological purpose?", "kind": "action", "id": "evidence-limited-use-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": [ "CAS, PubChem and EC identifiers should be checked against an explicitly stereochemical structure before assignment.", "Melting point, solubility, optical rotation and commercial purity specifications are not confidently recalled.", "Substance-specific toxicology, GHS classification and regulatory status require verification; no safety conclusion is implied by the short hazard list." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of L-fucitol 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": "Carbohydrate nomenclature", "value_or_pattern": "L-fucitol", "note": "Names a specific stereoisomer; the L designation does not specify the sign of optical rotation." }, { "scheme": "Molecular formula", "value_or_pattern": "C6H14O5", "note": "Establishes composition but does not distinguish stereoisomers." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of L-fucitol 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": [ "Generated from L-fucose during alditol-acetate derivatization for monosaccharide composition analysis; the acetylated derivative is used for chromatographic measurement." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of L-fucitol 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": "166.17", "unit": "g/mol" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of L-fucitol 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": [ "Identification by molecular formula or molecular mass alone cannot distinguish L-fucitol from other stereoisomeric deoxyhexitols." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of L-fucitol 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": "L-fucose", "difference": "L-fucose is a reducing aldose; L-fucitol has the corresponding aldehyde group reduced to an alcohol." }, { "name": "D-fucitol", "difference": "The enantiomer of L-fucitol, with opposite configuration at each corresponding stereocentre." }, { "name": "Galactitol", "difference": "Galactitol has six hydroxyl groups; L-fucitol has five, with a terminal methyl group replacing one terminal hydroxymethyl group." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of L-fucitol this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which primary measurements establish reliable melting behavior, solvent-dependent solubility and storage stability for authenticated L-fucitol?", "Which validated method distinguishes L-fucitol from D-fucitol and relevant diastereomers at the impurity levels required by the intended use?", "What EC identifier, GHS classification, exposure limits and jurisdiction-specific restrictions, if any, are verified for this exact substance?", "Which preparation routes and commercial grades are relevant, and what residual sugars, reagents, solvents or catalysts require acceptance limits?", "Which reported natural occurrences or biological activities are supported by primary studies that authenticate L-fucitol specifically?" ], "statistics": { "bundles": 5, "layers": 9, "findings": 14, "questions": 22 } }