{
    "model": {
        "rank": 5797,
        "code": "thing-q31687",
        "model_id": "vr.tr.baritone",
        "name": "baritone",
        "purpose": "Enable an AI agent to recognise a provisionally identified baritone brass instrument, assess its playing condition and determine suitable use, care or repair.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/q31687/",
        "tier": 2,
        "score": 64,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "character baritone",
                "heldenbaritone",
                "baryton-noble",
                "baryton-Martin",
                "Verdi baritone",
                "acting baritone",
                "Kavalierbariton",
                "buffo baritone",
                "lightweight baritone",
                "lyric baritone",
                "dramatic baritone"
            ],
            "aliasCount": 11,
            "merged": 11,
            "knownIn": 64,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q31687",
                "url": "https://www.wikidata.org/wiki/Q31687",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-07T09:20:26Z",
                "providers": [
                    "Codex"
                ],
                "missingProviders": [
                    "Grok"
                ],
                "pass": 2,
                "cost": {
                    "grok": {
                        "usd": null,
                        "turns": null,
                        "seconds": 14.5,
                        "error": "Error: Internal error: {\n  \"message\": \"API error (status 402 Payment Required): Grok Build usage balance exhausted\",\n  \"http_status\": 402\n}",
                        "retried": true
                    },
                    "codex": {
                        "seconds": 81.1,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07b2a-038c-7642-a9bf-f212f75ad190\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: baritone\nRegistry id: vr.tr.baritone\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Vercy"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q31687",
                "registryId": "vr.tr.baritone",
                "name": "baritone",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.OBJ"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q31687/",
            "model": {
                "registry_id": "vr.tr.baritone",
                "name": "baritone",
                "purpose": "Enable an AI agent to recognise a provisionally identified baritone brass instrument, assess its playing condition and determine suitable use, care or repair.",
                "definition": "",
                "scope_statement": "This model owns the identity, acoustic configuration, playing interfaces and physical readiness of an individual instrument called a baritone, provisionally interpreting the undefined PHY.OBJ entry as a baritone horn.",
                "in_scope": [
                    "Evidence supporting identification as a baritone horn",
                    "Sounding pitch, tubing configuration and notation compatibility",
                    "Mouthpiece, valves, slides and their functional relationships",
                    "Playing response, tuning and physical condition",
                    "Instrument-specific handling, maintenance and repair decisions"
                ],
                "out_of_scope": [
                    "Baritone singers and human vocal classifications",
                    "Baritone saxophones, guitars and other instruments carrying the same register label",
                    "Euphoniums and neighbouring brass instruments except for identification comparisons",
                    "Musical works, arrangements and ensemble roles",
                    "Performer competence and medical assessment"
                ],
                "distinguishing_features": [
                    "Establish whether the referent is a physical brass instrument rather than a voice category or another instrument labelled baritone.",
                    "Compare the maker's designation with measured tubing and bore-profile evidence; treat a seller's baritone label as insufficient to resolve possible euphonium identification.",
                    "Compare documented nominal pitch and tested open-valve resonance with candidate neighbouring instruments; do not identify it from bell size alone.",
                    "Inspect valve arrangement, tubing layout and playing orientation to distinguish a baritone variant from an unrelated instrument with a similar silhouette.",
                    "Separate the instrument's sounding configuration from the clef and transposition of its written part."
                ],
                "characteristics": [
                    {
                        "name": "Identification confidence",
                        "kind": "state",
                        "unit_or_values": "unresolved | provisional baritone horn | corroborated baritone horn | conflicting evidence",
                        "why_it_matters": "Controls whether baritone-specific recommendations are justified."
                    },
                    {
                        "name": "Maker and model designation",
                        "kind": "relation",
                        "unit_or_values": "Instrument linked to observed markings and matching maker documentation",
                        "why_it_matters": "Supports identification and selection of compatible parts and care instructions."
                    },
                    {
                        "name": "Nominal sounding pitch",
                        "kind": "category",
                        "unit_or_values": "Documented pitch designation, with evidence and uncertainty",
                        "why_it_matters": "Determines whether the instrument matches the intended musical part."
                    },
                    {
                        "name": "Bore profile",
                        "kind": "measurement",
                        "unit_or_values": "Internal diameter in mm at explicitly identified tubing locations",
                        "why_it_matters": "Provides physical evidence when baritone and euphonium terminology conflicts."
                    },
                    {
                        "name": "Valve and tubing configuration",
                        "kind": "category",
                        "unit_or_values": "Observed valve count, mechanism, actuation order and tubing routes",
                        "why_it_matters": "Supports fingering interpretation, fault diagnosis and maintenance."
                    },
                    {
                        "name": "Mouthpiece interface",
                        "kind": "measurement",
                        "unit_or_values": "Receiver and shank dimensions in mm, insertion depth and observed seating",
                        "why_it_matters": "Helps determine compatibility without forcing an unsuitable mouthpiece."
                    },
                    {
                        "name": "Pitch deviation",
                        "kind": "measurement",
                        "unit_or_values": "Cents relative to a stated reference, recorded by note, fingering and test conditions",
                        "why_it_matters": "Distinguishes a repeatable tuning issue from a single uncontrolled observation."
                    },
                    {
                        "name": "Playing readiness",
                        "kind": "state",
                        "unit_or_values": "untested | playable | playable with limitations | service required | unsuitable for playing",
                        "why_it_matters": "Connects inspection findings to permitted use."
                    }
                ],
                "affordances": [
                    "Compare identification evidence with documented baritone and euphonium candidates.",
                    "Match the instrument's sounding configuration to a musical part and notation convention.",
                    "Select a mouthpiece using verified receiver compatibility.",
                    "Guide a controlled response and tuning assessment across valve combinations.",
                    "Recommend routine care or technician assessment from observed valve, slide and tubing faults.",
                    "Determine suitable playing orientation, support and transport protection for its actual layout."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "baritone-identity",
                        "name": "Baritone identity",
                        "description": "Resolve what the baritone designation means for this physical instrument.",
                        "rationale": "The registry has no definition, and the name alone does not establish the instrument family or its boundary with euphonium.",
                        "layers": [
                            {
                                "id": "designation-evidence",
                                "name": "Designation evidence",
                                "description": "Connect the instrument's name to inspectable identification evidence.",
                                "findings": [
                                    {
                                        "id": "supported-instrument-designation",
                                        "name": "Supported instrument designation",
                                        "description": "Record the proposed identification, its supporting evidence and any conflicting labels.",
                                        "questions": [
                                            {
                                                "text": "Does baritone here denote a baritone horn, and what evidence establishes that interpretation?",
                                                "kind": "definition",
                                                "id": "supported-instrument-designation-q01"
                                            },
                                            {
                                                "text": "Which observed markings and matching maker records identify this particular instrument?",
                                                "kind": "provenance",
                                                "id": "supported-instrument-designation-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "neighbouring-brass-boundary",
                                "name": "Neighbouring brass boundary",
                                "description": "Assess identification against plausible euphonium and other brass-instrument alternatives.",
                                "findings": [
                                    {
                                        "id": "baritone-classification-basis",
                                        "name": "Baritone classification basis",
                                        "description": "Record the naming convention and physical evidence used to accept or withhold a baritone classification.",
                                        "questions": [
                                            {
                                                "text": "Under the relevant maker or regional convention, what distinguishes baritone from euphonium?",
                                                "kind": "boundary",
                                                "id": "baritone-classification-basis-q01"
                                            },
                                            {
                                                "text": "Which observed bore-profile and tubing-layout features support or contradict that distinction for this instrument?",
                                                "kind": "measurement",
                                                "id": "baritone-classification-basis-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "pitch-and-part-compatibility",
                        "name": "Pitch and part compatibility",
                        "description": "Relate acoustic configuration to the music the instrument is expected to play.",
                        "rationale": "A baritone designation alone cannot establish sounding pitch, notation convention or suitability for a particular part.",
                        "layers": [
                            {
                                "id": "sounding-configuration",
                                "name": "Sounding configuration",
                                "description": "Establish nominal pitch and the observed effects of valve combinations.",
                                "findings": [
                                    {
                                        "id": "pitch-configuration-evidence",
                                        "name": "Pitch configuration evidence",
                                        "description": "Record documented pitch alongside controlled observations of open and valved notes.",
                                        "questions": [
                                            {
                                                "text": "What nominal sounding pitch is documented for this model?",
                                                "kind": "provenance",
                                                "id": "pitch-configuration-evidence-q01"
                                            },
                                            {
                                                "text": "What sounding notes are observed with open valves and selected valve combinations under stated test conditions?",
                                                "kind": "measurement",
                                                "id": "pitch-configuration-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "written-part-interpretation",
                                "name": "Written part interpretation",
                                "description": "Keep written notation distinct from the instrument's acoustic identity.",
                                "findings": [
                                    {
                                        "id": "part-to-sound-mapping",
                                        "name": "Part-to-sound mapping",
                                        "description": "Record the clef, transposition and required register of the intended part.",
                                        "questions": [
                                            {
                                                "text": "What clef and written-to-sounding pitch convention does the intended baritone part use?",
                                                "kind": "definition",
                                                "id": "part-to-sound-mapping-q01"
                                            },
                                            {
                                                "text": "Does this instrument support that part as written, or is transposition, adaptation or another instrument required?",
                                                "kind": "action",
                                                "id": "part-to-sound-mapping-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "mouthpiece-and-valve-path",
                        "name": "Mouthpiece and valve path",
                        "description": "Describe the interfaces and tubing routes that establish the playable configuration.",
                        "rationale": "Mouthpiece mismatch and incorrectly functioning valve routes can prevent meaningful assessment of a baritone's response.",
                        "layers": [
                            {
                                "id": "mouthpiece-fit",
                                "name": "Mouthpiece fit",
                                "description": "Assess the mouthpiece-to-receiver connection for this instrument.",
                                "findings": [
                                    {
                                        "id": "receiver-compatible-mouthpiece",
                                        "name": "Receiver-compatible mouthpiece",
                                        "description": "Record compatibility evidence, seating and any obstruction or damage at the receiver.",
                                        "questions": [
                                            {
                                                "text": "Which mouthpiece shank specification is supported by the maker's documentation or measured receiver geometry?",
                                                "kind": "provenance",
                                                "id": "receiver-compatible-mouthpiece-q01"
                                            },
                                            {
                                                "text": "Does the fitted mouthpiece seat securely at an appropriate depth without force, looseness or visible damage?",
                                                "kind": "measurement",
                                                "id": "receiver-compatible-mouthpiece-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "valve-routing",
                                "name": "Valve routing",
                                "description": "Establish how valve actuation changes the air path and which mechanisms require attention.",
                                "findings": [
                                    {
                                        "id": "functional-valve-configuration",
                                        "name": "Functional valve configuration",
                                        "description": "Record valve mechanisms, associated tubing and observed operation without assuming a standard configuration.",
                                        "questions": [
                                            {
                                                "text": "How many valves are present, how do they operate, and what tubing route does each engage?",
                                                "kind": "definition",
                                                "id": "functional-valve-configuration-q01"
                                            },
                                            {
                                                "text": "Do all valves move, return and align correctly, and which combinations produce restricted airflow or unexpected pitch?",
                                                "kind": "measurement",
                                                "id": "functional-valve-configuration-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "response-and-playing-condition",
                        "name": "Response and playing condition",
                        "description": "Assess musical function while separating instrument faults from test conditions.",
                        "rationale": "An intact-looking baritone may still have leaks, response problems or tuning limitations that affect its usable state.",
                        "layers": [
                            {
                                "id": "response-and-intonation",
                                "name": "Response and intonation",
                                "description": "Capture repeatable playing observations across notes, dynamics and valve combinations.",
                                "findings": [
                                    {
                                        "id": "controlled-playing-assessment",
                                        "name": "Controlled playing assessment",
                                        "description": "Record response and tuning observations with enough context to interpret them.",
                                        "questions": [
                                            {
                                                "text": "Which notes or valve combinations show repeatable delayed response, unstable tone or pitch deviation?",
                                                "kind": "measurement",
                                                "id": "controlled-playing-assessment-q01"
                                            },
                                            {
                                                "text": "How were performer, mouthpiece, warm-up, tuning reference and environment controlled before attributing a problem to the instrument?",
                                                "kind": "boundary",
                                                "id": "controlled-playing-assessment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "tubing-integrity",
                                "name": "Tubing integrity",
                                "description": "Assess defects along the receiver, valve block, slides, branches and bell.",
                                "findings": [
                                    {
                                        "id": "function-affecting-defects",
                                        "name": "Function-affecting defects",
                                        "description": "Locate damage or leakage and distinguish observed effects from suspected consequences.",
                                        "questions": [
                                            {
                                                "text": "Where are dents, cracks, loose joints, leaking water keys or stuck slides, and what functional effects have been demonstrated?",
                                                "kind": "measurement",
                                                "id": "function-affecting-defects-q01"
                                            },
                                            {
                                                "text": "Which defects permit limited playing, require servicing before use or remain insufficiently assessed?",
                                                "kind": "action",
                                                "id": "function-affecting-defects-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use-and-care-decisions",
                        "name": "Use and care decisions",
                        "description": "Translate the instrument's configuration and condition into handling and service choices.",
                        "rationale": "Baritone layouts and mechanisms differ, so support, transport and maintenance decisions must follow the actual instrument.",
                        "layers": [
                            {
                                "id": "playing-and-transport-support",
                                "name": "Playing and transport support",
                                "description": "Assess support and clearance for the instrument's bell orientation, valve access and tubing layout.",
                                "findings": [
                                    {
                                        "id": "supported-use-configuration",
                                        "name": "Supported use configuration",
                                        "description": "Record a practical playing and transport arrangement that avoids loading vulnerable parts.",
                                        "questions": [
                                            {
                                                "text": "What playing orientation and support arrangement allow valve access without placing unintended loads on slides, braces or the bell?",
                                                "kind": "action",
                                                "id": "supported-use-configuration-q01"
                                            },
                                            {
                                                "text": "Does the proposed case or stand fit this baritone's actual dimensions and support points?",
                                                "kind": "measurement",
                                                "id": "supported-use-configuration-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "maintenance-and-repair-boundary",
                                "name": "Maintenance and repair boundary",
                                "description": "Separate supported routine care from interventions requiring instrument-repair expertise.",
                                "findings": [
                                    {
                                        "id": "condition-based-care",
                                        "name": "Condition-based care",
                                        "description": "Choose care actions from verified mechanism guidance and observed condition.",
                                        "questions": [
                                            {
                                                "text": "Which cleaning, lubrication and slide-care procedures are documented for this model's mechanisms and finish?",
                                                "kind": "provenance",
                                                "id": "condition-based-care-q01"
                                            },
                                            {
                                                "text": "Do seized parts, damaged valve alignment, leakage or structural defects require technician assessment before further manipulation?",
                                                "kind": "action",
                                                "id": "condition-based-care-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does vr.tr.baritone specifically denote the baritone horn, or does the registry intend another physical referent?",
                "Which maker, regional or historical convention should govern the boundary between baritone horn and euphonium?",
                "Which upright, marching or historical variants belong within this entry rather than neighbouring registered things?",
                "What documented reference configurations and assessment criteria are available for the specific instrument being modelled?",
                "Does an existing Vercy world model already own this concept, requiring a registry link instead of a separate publication?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 10,
                "findings": 10,
                "questions": 20
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "device, machine or tool",
            "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 baritone, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise a provisionally identified baritone brass instrument, assess its playing condition and determine suitable use, care or repair.",
            "characteristics": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: character baritone, heldenbaritone, baryton-noble, baryton-Martin, Verdi baritone, acting baritone, Kavalierbariton, buffo baritone, lightweight baritone, lyric baritone, dramatic baritone.",
                "11 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 64 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 baritone, 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"
            ],
            "howItIsRecognised": [
                "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "character baritone",
                        "heldenbaritone",
                        "baryton-noble",
                        "baryton-Martin",
                        "Verdi baritone",
                        "acting baritone",
                        "Kavalierbariton",
                        "buffo baritone",
                        "lightweight baritone",
                        "lyric baritone",
                        "dramatic baritone"
                    ]
                }
            ],
            "standing": "Described in 64 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 11 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one baritone from another, and a baritone 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 baritone, 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 baritone, 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 baritone 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 baritone, 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 baritone, 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 baritone 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 baritone 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 baritone, 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 baritone, 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 baritone 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 baritone from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a baritone, 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 baritone, 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 baritone 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 baritone 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 baritone, 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 baritone, 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 baritone 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 baritone is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a baritone, 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 baritone, 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 baritone 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 baritone is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a baritone, 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 baritone, 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 baritone 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 baritone 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 baritone is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a baritone, 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 baritone, 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 baritone 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 baritone 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 baritone, 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 baritone, 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 baritone 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 baritone 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 baritone between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a baritone, 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 baritone, 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 baritone 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 baritone, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a baritone 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 baritone, 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 baritone, 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 baritone is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "function-and-principle",
                        "name": "Function and operating principle",
                        "description": "What baritone is for and how it achieves it.",
                        "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.",
                        "layers": [
                            {
                                "id": "intended-function",
                                "name": "Intended function",
                                "description": "The job it does, and the jobs it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-record",
                                        "name": "Function, principle and variants",
                                        "description": "What it does, how, and which variants do it differently.",
                                        "questions": [
                                            {
                                                "id": "function-record-q01",
                                                "text": "What function does baritone perform, on what operating principle, and which variants differ in that principle?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "function-record-q02",
                                                "text": "What use falls outside the intended function but happens in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "capacity-and-rating",
                                "name": "Capacity and rating",
                                "description": "The numbers that say what it can do and where it stops.",
                                "findings": [
                                    {
                                        "id": "ratings",
                                        "name": "Ratings and their conditions",
                                        "description": "Rated capacity, power, throughput and the conditions each assumes.",
                                        "questions": [
                                            {
                                                "id": "ratings-q01",
                                                "text": "What ratings characterise baritone, in what units, and under what stated conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "ratings-q02",
                                                "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "operation-and-state",
                        "name": "Operation, controls and state",
                        "description": "How baritone is operated and what state it is in right now.",
                        "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.",
                        "layers": [
                            {
                                "id": "controls-and-modes",
                                "name": "Controls and modes",
                                "description": "What can be set, what that changes, and what is interlocked.",
                                "findings": [
                                    {
                                        "id": "control-surface",
                                        "name": "Control surface and interlocks",
                                        "description": "The settings available and the conditions that block them.",
                                        "questions": [
                                            {
                                                "id": "control-surface-q01",
                                                "text": "What controls and modes does baritone have, and what does each change?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "control-surface-q02",
                                                "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-maintenance",
                                "name": "Condition and maintenance",
                                "description": "Wear, service intervals, consumables and the line between working and broken.",
                                "findings": [
                                    {
                                        "id": "service-record",
                                        "name": "Condition, service and consumables",
                                        "description": "What is consumed, what is serviced, and how condition is judged.",
                                        "questions": [
                                            {
                                                "id": "service-record-q01",
                                                "text": "What consumables and service does baritone need, at what interval, and on whose authority?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "service-record-q02",
                                                "text": "What evidence separates a unit that is working from one that is out of service?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "kind-model-unit",
                        "name": "Kind, model and unit",
                        "description": "Whether a claim about baritone is about the kind, a product line, or one physical unit.",
                        "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.",
                        "layers": [
                            {
                                "id": "level-of-reference",
                                "name": "Level of reference",
                                "description": "The three levels and what belongs at each.",
                                "findings": [
                                    {
                                        "id": "level-rules",
                                        "name": "What belongs to kind, model and unit",
                                        "description": "Which properties are shared by all of them and which are not.",
                                        "questions": [
                                            {
                                                "id": "level-rules-q01",
                                                "text": "Which facts about baritone hold for every one of them, which for a model, and which only for one unit?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "level-rules-q02",
                                                "text": "What identifies an individual unit, and what should an agent do when it has only the kind?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "standards-and-conformity",
                                "name": "Standards and conformity",
                                "description": "The standards a working example must meet and who attests it.",
                                "findings": [
                                    {
                                        "id": "conformity",
                                        "name": "Standards, marks and attestation",
                                        "description": "Which standard applies, who certifies, and what the mark means.",
                                        "questions": [
                                            {
                                                "id": "conformity-q01",
                                                "text": "Which standards govern baritone, issued by whom, and what does conformity actually assert?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "conformity-q02",
                                                "text": "What may an agent conclude from a certification mark, and what may it not?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a baritone 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 baritone and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a baritone, 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 baritone, 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 baritone 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 baritone is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a baritone, 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 baritone, 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 baritone is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 8,
                "layers": 17,
                "findings": 19,
                "questions": 51
            }
        }
    }
}