{
    "model": {
        "rank": 4795,
        "code": "thing-q169313",
        "model_id": "vr.tr.guanine",
        "name": "guanine",
        "purpose": "Enable an agent to recognise guanine, assess the identity and condition of a guanine material, and judge its suitability for a specified chemical, biological or optical use.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.MAT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q169313/",
        "tier": 2,
        "score": 72,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 72,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q169313",
                "url": "https://www.wikidata.org/wiki/Q169313",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T21:00:59Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 19.9,
                        "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: 01a087f8-4f67-79a3-887f-15d828905f71\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: guanine\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 registe",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 66.9,
                        "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: 01a087f8-4f55-7060-ac38-726ec62723c4\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: guanine\nRegistry id: vr.tr.guanine\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext "
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q169313",
                "registryId": "vr.tr.guanine",
                "name": "guanine",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.MAT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q169313/",
            "model": {
                "registry_id": "vr.tr.guanine",
                "name": "guanine",
                "purpose": "Enable an agent to recognise guanine, assess the identity and condition of a guanine material, and judge its suitability for a specified chemical, biological or optical use.",
                "definition": "Guanine is a purine nucleobase with molecular formula C5H5N5O that occurs as a component of DNA and RNA and forms canonical Watson-Crick base pairs with cytosine.",
                "scope_statement": "This model owns guanine as the chemical substance registered as vr.tr.guanine in PHY / PHY.MAT, including molecular identity, physical forms, sample composition, condition-dependent behaviour and constraints on use.",
                "in_scope": [
                    "Guanine molecular identity, distinguishing the free nucleobase from derivatives and incorporated residues",
                    "Purity, impurities, water content and grade of guanine samples",
                    "Solid forms, particle properties and condition-dependent dissolution",
                    "Chemical transformations and molecular interactions relevant to handling or use",
                    "Source, analytical evidence and applicable safety or regulatory records"
                ],
                "out_of_scope": [
                    "Guanosine, deoxyguanosine and guanine nucleotides as independently identified substances",
                    "DNA and RNA sequences, structures and biological functions",
                    "Purine biosynthesis, salvage and degradation pathways as complete processes",
                    "Organisms and tissues that produce or contain guanine",
                    "Finished cosmetics, pigments, assay kits and other guanine-containing products"
                ],
                "distinguishing_features": [
                    "Establish the 2-amino-6-oxopurine connectivity; elemental composition alone does not distinguish structural isomers.",
                    "Confirm the molecular formula C5H5N5O for neutral guanine and distinguish it from adenine, hypoxanthine and xanthine.",
                    "Check for an attached sugar or sugar-phosphate group: these identify a nucleoside or nucleotide rather than free guanine.",
                    "Distinguish an isolated guanine material from guanine residues detected within a nucleic acid.",
                    "Identify whether a crystalline or reflective sample is guanine itself, a mixture containing guanine or a finished pigment formulation."
                ],
                "characteristics": [
                    {
                        "name": "Chemical identity and identifier agreement",
                        "kind": "category",
                        "unit_or_values": "Structure representation, molecular formula, verified CAS number, PubChem CID and EC identifier where applicable",
                        "why_it_matters": "Prevents records for guanine, related purines and derivatives from being merged."
                    },
                    {
                        "name": "Chemical presentation",
                        "kind": "category",
                        "unit_or_values": "Free base, protonated or deprotonated species, salt, hydrate or other explicitly identified form",
                        "why_it_matters": "Determines whether the material belongs directly to this model or requires a related substance record."
                    },
                    {
                        "name": "Assay and impurity profile",
                        "kind": "measurement",
                        "unit_or_values": "Mass fraction or method-specific assay percentage; individual impurities in mg/kg or another stated unit",
                        "why_it_matters": "Supports decisions about analytical, biological and material applications without equating chromatographic area with mass purity."
                    },
                    {
                        "name": "Water and residual solvent content",
                        "kind": "measurement",
                        "unit_or_values": "Mass percent or mg/kg, with analytical method",
                        "why_it_matters": "Affects weighed concentration, storage behaviour and interpretation of solid-form measurements."
                    },
                    {
                        "name": "Solid-state identity",
                        "kind": "category",
                        "unit_or_values": "Experimentally assigned crystalline form, amorphous material or unresolved form",
                        "why_it_matters": "Connects dissolution and optical behaviour to the material actually examined."
                    },
                    {
                        "name": "Particle morphology and size",
                        "kind": "measurement",
                        "unit_or_values": "Dimensions and size distribution in µm; shape and aspect ratio",
                        "why_it_matters": "Supports assessment of dispersion, dissolution and reflective performance."
                    },
                    {
                        "name": "Solubility under specified conditions",
                        "kind": "measurement",
                        "unit_or_values": "mol/L or g/L, with solvent, pH, temperature, solid form and equilibration method",
                        "why_it_matters": "Determines whether a requested preparation can produce a solution at the required concentration."
                    },
                    {
                        "name": "Thermal behaviour",
                        "kind": "measurement",
                        "unit_or_values": "Transition or decomposition temperature in °C, with method, atmosphere and heating rate",
                        "why_it_matters": "Prevents decomposition events from being reported as usable melting or boiling points."
                    },
                    {
                        "name": "Sample condition",
                        "kind": "state",
                        "unit_or_values": "Within specification, contaminated, chemically altered or unassessed, with dated evidence",
                        "why_it_matters": "Separates the identity of guanine from the present usability of a particular sample."
                    },
                    {
                        "name": "Safety and regulatory identity",
                        "kind": "relation",
                        "unit_or_values": "Links to applicable SDS, jurisdiction-specific classification, exposure-limit records and product or grade restrictions",
                        "why_it_matters": "Makes handling decisions traceable while distinguishing an absent classification from missing information."
                    }
                ],
                "affordances": [
                    "Identify a sample as guanine using structure-linked records and suitable analytical evidence.",
                    "Accept, reject or qualify a guanine lot against the purity and impurity requirements of an intended use.",
                    "Assess and select dissolution conditions while recording the resulting chemical form and concentration.",
                    "Evaluate guanine particles for a specified dispersion or optical application using measured morphology and solid-state evidence.",
                    "Detect chemical alteration or contamination and determine whether further characterisation is required.",
                    "Select handling and storage measures from verified information applicable to the actual material."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "guanine-identity-and-boundaries",
                        "name": "Guanine identity and boundaries",
                        "description": "Establishes which molecular entity and material presentation the record describes.",
                        "rationale": "Guanine is easily conflated with its nucleosides, nucleotides and residues in biological polymers.",
                        "layers": [
                            {
                                "id": "purine-molecular-identity",
                                "name": "Purine molecular identity",
                                "description": "Captures the structure evidence that distinguishes guanine from related purines.",
                                "findings": [
                                    {
                                        "id": "structure-linked-identification",
                                        "name": "Structure-linked identification",
                                        "description": "Record guanine connectivity and reconcile names and identifiers against that structure.",
                                        "questions": [
                                            {
                                                "text": "Which verified structure representation identifies this record as 2-amino-6-oxopurine?",
                                                "kind": "definition",
                                                "id": "structure-linked-identification-q01"
                                            },
                                            {
                                                "text": "Which authoritative records establish the CAS, PubChem and EC identifiers for the precise chemical form?",
                                                "kind": "provenance",
                                                "id": "structure-linked-identification-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "free-base-and-related-entities",
                                "name": "Free base and related entities",
                                "description": "Separates guanine itself from chemically linked or formulated presentations.",
                                "findings": [
                                    {
                                        "id": "entity-boundary-test",
                                        "name": "Entity boundary test",
                                        "description": "Determine whether the subject is free guanine, a related substance or a containing material.",
                                        "questions": [
                                            {
                                                "text": "Is the guanine present as a free nucleobase, a sugar-linked derivative or a residue within DNA or RNA?",
                                                "kind": "boundary",
                                                "id": "entity-boundary-test-q01"
                                            },
                                            {
                                                "text": "Does a counterion, covalent modification or formulation require a separate linked substance or product model?",
                                                "kind": "boundary",
                                                "id": "entity-boundary-test-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "guanine-lot-composition",
                        "name": "Guanine lot composition",
                        "description": "Describes the origin and measured composition of a particular guanine material.",
                        "rationale": "A guanine label does not establish assay value, freedom from related purines or suitability for a sensitive application.",
                        "layers": [
                            {
                                "id": "origin-and-grade",
                                "name": "Origin and grade",
                                "description": "Connects the material to its production route, supplier and declared specification.",
                                "findings": [
                                    {
                                        "id": "lot-origin-and-specification",
                                        "name": "Lot origin and specification",
                                        "description": "Record traceable origin and grade claims without treating the grade name as analytical proof.",
                                        "questions": [
                                            {
                                                "text": "Was this lot synthesised, isolated from a biological source or obtained by another documented route?",
                                                "kind": "provenance",
                                                "id": "lot-origin-and-specification-q01"
                                            },
                                            {
                                                "text": "Which lot-specific certificate and specification define the claimed grade and intended use?",
                                                "kind": "provenance",
                                                "id": "lot-origin-and-specification-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "assay-and-related-purines",
                                "name": "Assay and related purines",
                                "description": "Distinguishes guanine content from water, residual solvents and chemically related contaminants.",
                                "findings": [
                                    {
                                        "id": "composition-evidence",
                                        "name": "Composition evidence",
                                        "description": "Record quantitative composition with methods capable of resolving relevant impurities.",
                                        "questions": [
                                            {
                                                "text": "What is the guanine assay, on what reporting basis, and can the method distinguish guanine from adenine, hypoxanthine and xanthine?",
                                                "kind": "measurement",
                                                "id": "composition-evidence-q01"
                                            },
                                            {
                                                "text": "What water, residual solvent and other impurity measurements are needed to accept this lot for its intended application?",
                                                "kind": "action",
                                                "id": "composition-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "guanine-physical-form-and-preparation",
                        "name": "Guanine physical form and preparation",
                        "description": "Relates the actual solid material to dissolution and thermal behaviour.",
                        "rationale": "Preparation decisions require condition-specific measurements rather than a single unqualified solubility or transition value.",
                        "layers": [
                            {
                                "id": "solid-form-and-thermal-events",
                                "name": "Solid form and thermal events",
                                "description": "Characterises solid-state identity and distinguishes transitions from chemical decomposition.",
                                "findings": [
                                    {
                                        "id": "solid-state-evidence",
                                        "name": "Solid-state evidence",
                                        "description": "Attach measured solid-form assignments and correctly interpreted thermal observations.",
                                        "questions": [
                                            {
                                                "text": "Which diffraction, spectroscopic or thermal evidence identifies the sample's crystalline form and hydration state?",
                                                "kind": "measurement",
                                                "id": "solid-state-evidence-q01"
                                            },
                                            {
                                                "text": "Does the reported heating event represent melting, solvent loss, a solid-state transition or decomposition under the stated conditions?",
                                                "kind": "measurement",
                                                "id": "solid-state-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "dissolution-and-speciation",
                                "name": "Dissolution and speciation",
                                "description": "Connects achievable concentration to solvent conditions and chemical form.",
                                "findings": [
                                    {
                                        "id": "qualified-solution-preparation",
                                        "name": "Qualified solution preparation",
                                        "description": "Assess dissolution using explicit pH, temperature, concentration and stability requirements.",
                                        "questions": [
                                            {
                                                "text": "What equilibrium solubility is supported for the specified solvent, pH, temperature and starting solid form?",
                                                "kind": "measurement",
                                                "id": "qualified-solution-preparation-q01"
                                            },
                                            {
                                                "text": "Will the preparation remain dissolved at the final working pH and temperature, and what guanine species will be present?",
                                                "kind": "action",
                                                "id": "qualified-solution-preparation-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "guanine-interactions-and-performance",
                        "name": "Guanine interactions and performance",
                        "description": "Captures use-relevant molecular interactions and particle-dependent optical behaviour.",
                        "rationale": "Guanine's biological recognition and reflective material uses depend on different physical contexts that must be recorded explicitly.",
                        "layers": [
                            {
                                "id": "molecular-recognition-context",
                                "name": "Molecular recognition context",
                                "description": "Qualifies claims about pairing, association and chemical transformation by molecular context.",
                                "findings": [
                                    {
                                        "id": "interaction-and-transformation-evidence",
                                        "name": "Interaction and transformation evidence",
                                        "description": "Separate evidence about free guanine from evidence about guanine incorporated into larger molecules.",
                                        "questions": [
                                            {
                                                "text": "Does the cited interaction with cytosine or another partner concern free guanine, a nucleoside or a nucleic-acid residue?",
                                                "kind": "boundary",
                                                "id": "interaction-and-transformation-evidence-q01"
                                            },
                                            {
                                                "text": "What evidence establishes association or transformation under the solvent, pH and chemical conditions of the proposed use?",
                                                "kind": "measurement",
                                                "id": "interaction-and-transformation-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "crystal-optical-performance",
                                "name": "Crystal optical performance",
                                "description": "Relates guanine particle structure and arrangement to measured optical effects.",
                                "findings": [
                                    {
                                        "id": "reflective-particle-qualification",
                                        "name": "Reflective particle qualification",
                                        "description": "Assess optical suitability using measurements of the particles and their application environment.",
                                        "questions": [
                                            {
                                                "text": "What particle dimensions, crystal form, orientation and surrounding medium accompany the measured reflectance or scattering?",
                                                "kind": "measurement",
                                                "id": "reflective-particle-qualification-q01"
                                            },
                                            {
                                                "text": "Which acceptance criteria determine whether these guanine particles are suitable for the proposed optical application?",
                                                "kind": "action",
                                                "id": "reflective-particle-qualification-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "guanine-condition-and-permitted-use",
                        "name": "Guanine condition and permitted use",
                        "description": "Connects storage history, chemical integrity and applicable handling requirements to use decisions.",
                        "rationale": "Neither molecular identity nor a supplier grade alone establishes present condition or permission for a particular application.",
                        "layers": [
                            {
                                "id": "integrity-during-storage-and-use",
                                "name": "Integrity during storage and use",
                                "description": "Tracks evidence of contamination or chemical alteration in solid guanine and prepared solutions.",
                                "findings": [
                                    {
                                        "id": "condition-and-requalification",
                                        "name": "Condition and requalification",
                                        "description": "Record relevant exposure history and analytical criteria for continued use.",
                                        "questions": [
                                            {
                                                "text": "What storage duration, temperature, solution pH and exposure to reactive substances are documented for this material?",
                                                "kind": "provenance",
                                                "id": "condition-and-requalification-q01"
                                            },
                                            {
                                                "text": "Which analytical changes or missing records require requalification before the next use?",
                                                "kind": "action",
                                                "id": "condition-and-requalification-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "safety-and-jurisdiction",
                                "name": "Safety and jurisdiction",
                                "description": "Links the precise material to current safety evidence and application-specific regulatory requirements.",
                                "findings": [
                                    {
                                        "id": "applicable-handling-evidence",
                                        "name": "Applicable handling evidence",
                                        "description": "Ground handling and use decisions in records covering the actual chemical form, grade and jurisdiction.",
                                        "questions": [
                                            {
                                                "text": "Which current SDS and jurisdiction-specific records establish hazard classification and any applicable exposure limits for this material?",
                                                "kind": "provenance",
                                                "id": "applicable-handling-evidence-q01"
                                            },
                                            {
                                                "text": "What handling, storage, disposal and application restrictions follow for the proposed quantity, physical form and intended use?",
                                                "kind": "action",
                                                "id": "applicable-handling-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "This record is based on recall; no sources were consulted.",
                                            "Verify grade, purity, hydration state and measurement conditions before adding physical-property values.",
                                            "Confirm supplier-specific safety classifications and jurisdiction-specific requirements; nucleic-acid damage mechanisms are not a hazard classification for bulk guanine."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of guanine 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": "73-40-5",
                                                "note": "Identifies guanine as the free nucleobase."
                                            },
                                            {
                                                "scheme": "Nucleic-acid base notation",
                                                "value_or_pattern": "G",
                                                "note": "Denotes guanine in nucleotide sequences; a sequence position represents a nucleotide residue rather than an isolated free base."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of guanine 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": [
                                            "Used as a reagent and analytical reference in nucleobase chemistry and biochemical research.",
                                            "Crystalline guanine provides reflective material in some pearlescent pigments.",
                                            "Biological guanine crystals act as reflectors in structures such as fish scales."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of guanine 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": "151.13",
                                                "unit": "g/mol"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of guanine 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": [
                                            "Low aqueous solubility can limit preparation of concentrated solutions; solubility depends on pH and conditions.",
                                            "Oxidation of guanine residues in nucleic acids can produce lesions such as 8-oxoguanine that promote incorrect base pairing.",
                                            "Deamination converts guanine to xanthine, altering the chemical identity of the base."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of guanine 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": "guanosine",
                                                "difference": "Guanosine is the nucleoside formed by attaching guanine to ribose."
                                            },
                                            {
                                                "name": "guanine nucleotides",
                                                "difference": "Guanine nucleotides contain a guanine base, a sugar and one or more phosphate groups."
                                            },
                                            {
                                                "name": "adenine",
                                                "difference": "Adenine is another purine nucleobase; it lacks guanine's carbonyl oxygen and canonically pairs with thymine or uracil."
                                            },
                                            {
                                                "name": "cytosine",
                                                "difference": "Cytosine is guanine's canonical pairing partner and has a single pyrimidine ring rather than a fused purine ring system."
                                            },
                                            {
                                                "name": "xanthine",
                                                "difference": "Xanthine has a carbonyl group in place of guanine's exocyclic amino group."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of guanine this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Which authoritative identifier records distinguish neutral guanine from separately registered salts, hydrates or other forms?",
                "Which reported solid forms and thermal values have sufficient experimental evidence, and which apparent melting-point records actually describe decomposition?",
                "What reliable solubility and speciation data cover the pH, temperature and solvent ranges needed for intended uses?",
                "Which validated assays and impurity limits distinguish acceptable guanine grades for analytical, biological and optical applications?",
                "What current hazard classifications, exposure limits and application-specific restrictions apply in the relevant jurisdictions?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 16,
                "questions": 26
            }
        },
        "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 guanine, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to recognise guanine, assess the identity and condition of a guanine material, and judge its suitability for a specified chemical, biological or optical use.",
            "characteristics": {
                "substance": "material",
                "origin": "natural",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured",
                "consumed or used up"
            ],
            "distinguishingFeatures": [
                "Described in 72 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 guanine, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state",
                "use it up, and then need more of it"
            ],
            "howItIsRecognised": [
                "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay."
            ],
            "relatedModels": [],
            "standing": "Described in 72 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one guanine from another, and a guanine 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 guanine, 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 guanine, 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 guanine 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 guanine, 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 guanine, 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 guanine 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 guanine 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 guanine, 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 guanine, 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 guanine 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 guanine from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a guanine, 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 guanine, 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 guanine 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 guanine 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 guanine, 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 guanine, 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 guanine 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 guanine is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a guanine, 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 guanine, 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 guanine 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 guanine is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a guanine, 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 guanine, 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 guanine 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 guanine 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 guanine is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a guanine, 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 guanine, 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 guanine 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 guanine 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 guanine, 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 guanine, 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 guanine 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 guanine 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 guanine between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a guanine, 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 guanine, 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 guanine 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 guanine, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a guanine 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 guanine, 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 guanine, 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 guanine 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 guanine 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 guanine is for, and what it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-and-purpose",
                                        "name": "Function, purpose and misuse",
                                        "description": "The function a guanine performs and the uses that fall outside it.",
                                        "questions": [
                                            {
                                                "id": "function-and-purpose-q01",
                                                "text": "What identifies and describes the use of a guanine, 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 guanine, 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 guanine 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 guanine.",
                                "findings": [
                                    {
                                        "id": "procedures-and-skills",
                                        "name": "Procedures, skills and required tools",
                                        "description": "What an agent needs before it can act on a guanine at all.",
                                        "questions": [
                                            {
                                                "id": "procedures-and-skills-q01",
                                                "text": "What identifies and describes handling a guanine, 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 guanine, 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 guanine 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 guanine there is and how fast it goes.",
                                        "questions": [
                                            {
                                                "id": "consumption-and-stock-q01",
                                                "text": "What identifies and describes the supply of a guanine, 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 guanine, 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 guanine 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 guanine 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 guanine 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 guanine 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 guanine 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 guanine, 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 guanine 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 guanine 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 guanine 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 guanine, 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 guanine 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 guanine and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a guanine, 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 guanine, 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 guanine 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 guanine is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a guanine, 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 guanine, 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 guanine 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
            }
        }
    }
}