{
    "model": {
        "rank": 5496,
        "code": "thing-q189737",
        "model_id": "vr.tr.timpani",
        "name": "timpani",
        "purpose": "Enable an agent to recognise timpani, assess their pitch capability and physical readiness, and decide how they may be tuned, played, maintained or moved.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/q189737/",
        "tier": 2,
        "score": 67,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "kus",
                "naqara"
            ],
            "aliasCount": 2,
            "merged": 2,
            "knownIn": 67,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q189737",
                "url": "https://www.wikidata.org/wiki/Q189737",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T22:29:32Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 22.5,
                        "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: 01a08849-71f4-7232-9789-626cc0ae45c3\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: timpani\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 registe",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 63.2,
                        "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: 01a08849-71f3-73b3-9b70-523e36668a45\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: timpani\nRegistry id: vr.tr.timpani\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext "
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q189737",
                "registryId": "vr.tr.timpani",
                "name": "timpani",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.OBJ"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q189737/",
            "model": {
                "registry_id": "vr.tr.timpani",
                "name": "timpani",
                "purpose": "Enable an agent to recognise timpani, assess their pitch capability and physical readiness, and decide how they may be tuned, played, maintained or moved.",
                "definition": "Timpani are tunable kettle drums, usually played in sets, each consisting of a membrane stretched over a bowl-shaped resonator and struck with mallets to produce a perceptible musical pitch.",
                "scope_statement": "This model owns timpani as a kind of tunable kettledrum, including the properties needed to assess an individual drum and its role within a set; it distinguishes the instrument kind from a manufacturer's product model or a particular instrument.",
                "in_scope": [
                    "Kettle, head, bearing edge, frame and supporting hardware",
                    "Head-tension adjustment, tuning mechanisms and pitch indication",
                    "Usable pitch range, tuning stability and acoustic response",
                    "Mallet contact, damping and playing accessibility",
                    "Condition, head replacement, setup and transport readiness"
                ],
                "out_of_scope": [
                    "Percussion instruments generally and neighbouring kinds such as tom-toms or bass drums",
                    "The timpanist's occupation, training and physical technique as independent subjects",
                    "Musical works, scores and orchestration conventions",
                    "Mallets, tuning devices and transport cases as independent equipment kinds",
                    "Manufacturer product catalogues and individual asset histories",
                    "Room acoustics and ensemble organisation"
                ],
                "distinguishing_features": [
                    "Has a stretched striking head over a kettle-shaped resonating body, rather than the cylindrical shell typical of a tom-tom.",
                    "Supports intentional tuning to a musically identifiable pitch; being a large struck drum alone does not establish that it is a timpano.",
                    "Changes pitch through adjustment of head tension; a foot pedal is a possible mechanism rather than a required identifying feature.",
                    "Is assessed as an individually tunable drum even when used within a multi-drum set; the set is not a single resonating instrument."
                ],
                "characteristics": [
                    {
                        "name": "Head diameter",
                        "kind": "measurement",
                        "unit_or_values": "mm or inches; distinguish nominal size from measured diameter",
                        "why_it_matters": "Helps identify head compatibility and interpret the drum's intended pitch role."
                    },
                    {
                        "name": "Kettle construction",
                        "kind": "category",
                        "unit_or_values": "Recorded material, profile and construction method; unknown permitted",
                        "why_it_matters": "Supports assessment of acoustic behaviour, damage and handling requirements."
                    },
                    {
                        "name": "Head construction",
                        "kind": "category",
                        "unit_or_values": "Animal skin or synthetic material, with product and treatment details when known",
                        "why_it_matters": "Affects replacement compatibility, environmental sensitivity and response."
                    },
                    {
                        "name": "Tuning mechanism",
                        "kind": "category",
                        "unit_or_values": "Individual tension screws, pedal, other documented mechanism or unknown",
                        "why_it_matters": "Determines how pitch can be changed and which operating checks apply."
                    },
                    {
                        "name": "Verified usable pitch range",
                        "kind": "measurement",
                        "unit_or_values": "Lowest and highest usable sounding pitches, in Hz or note names with reference tuning",
                        "why_it_matters": "Determines whether the drum can cover an intended part without assuming a range from diameter alone."
                    },
                    {
                        "name": "Current sounding pitch",
                        "kind": "measurement",
                        "unit_or_values": "Hz and optionally cents relative to a stated target",
                        "why_it_matters": "Establishes tuning readiness independently of a pitch gauge reading."
                    },
                    {
                        "name": "Pitch stability",
                        "kind": "measurement",
                        "unit_or_values": "Pitch drift in cents over a stated duration and test condition",
                        "why_it_matters": "Helps detect tuning retention problems and environmental effects."
                    },
                    {
                        "name": "Head and bearing-edge condition",
                        "kind": "state",
                        "unit_or_values": "Observed wear, damage, seating irregularity or no observed defect; inspection scope recorded",
                        "why_it_matters": "Informs whether tuning, playing or servicing should proceed."
                    },
                    {
                        "name": "Tuning mechanism readiness",
                        "kind": "state",
                        "unit_or_values": "Moves and holds as intended, slips, binds, untested or not applicable",
                        "why_it_matters": "Determines whether pitch adjustment is reliable and mechanically appropriate."
                    },
                    {
                        "name": "Set membership and pitch assignment",
                        "kind": "relation",
                        "unit_or_values": "Related drums, assigned notes or ranges, and overlap or gaps",
                        "why_it_matters": "Allows an agent to judge collective pitch coverage while preserving each drum's identity."
                    }
                ],
                "affordances": [
                    "Identify which drum in a set can cover a requested pitch using its verified range.",
                    "Tune to a reference and check the sounding result against any pitch indicator.",
                    "Evaluate attack, sustain and damping response using documented test strokes.",
                    "Inspect head seating, tension consistency and tuning-mechanism behaviour.",
                    "Determine compatible replacement heads and the applicable servicing procedure.",
                    "Plan a stable playing arrangement and transport procedure using instrument-specific handling information."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "timpani-identity-and-construction",
                        "name": "Timpani identity and construction",
                        "description": "Establishes the instrument boundary and the construction that supports its operation.",
                        "rationale": "An agent must distinguish timpani from neighbouring drums and avoid treating a set or product designation as the instrument kind.",
                        "layers": [
                            {
                                "id": "instrument-and-set-boundaries",
                                "name": "Instrument and set boundaries",
                                "description": "Separates the individual resonating drum from a collection and from commercial naming.",
                                "findings": [
                                    {
                                        "id": "tunable-kettledrum-identity",
                                        "name": "Tunable kettledrum identity",
                                        "description": "Record the evidence for identifying the object as a timpano and clarify whether the record describes one drum or a set.",
                                        "questions": [
                                            {
                                                "text": "Which observed construction and tuning capabilities establish this as a timpano rather than another drum?",
                                                "kind": "definition",
                                                "id": "tunable-kettledrum-identity-q01"
                                            },
                                            {
                                                "text": "Does the supplied name identify the instrument kind, a product model, one drum or a set of drums?",
                                                "kind": "boundary",
                                                "id": "tunable-kettledrum-identity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "head-kettle-and-support",
                                "name": "Head, kettle and support",
                                "description": "Describes the striking membrane, resonating body and their mechanical support.",
                                "findings": [
                                    {
                                        "id": "construction-and-fit",
                                        "name": "Construction and fit",
                                        "description": "Record head dimensions and material, kettle construction, mounting arrangement and evidence of component compatibility.",
                                        "questions": [
                                            {
                                                "text": "What are the nominal and measured head dimensions, and what head and kettle materials are documented?",
                                                "kind": "measurement",
                                                "id": "construction-and-fit-q01"
                                            },
                                            {
                                                "text": "Which maker documentation or inspection establishes the installed head and mounting hardware as compatible?",
                                                "kind": "provenance",
                                                "id": "construction-and-fit-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "pitch-control-and-range",
                        "name": "Pitch control and range",
                        "description": "Captures how head tension is adjusted and which sounding pitches are usable.",
                        "rationale": "Pitch selection is central to timpani use, and mechanism position alone does not establish actual pitch.",
                        "layers": [
                            {
                                "id": "tension-control",
                                "name": "Tension control",
                                "description": "Identifies the adjustment mechanism, its controls and its operating limits.",
                                "findings": [
                                    {
                                        "id": "tuning-operation",
                                        "name": "Tuning operation",
                                        "description": "Establish the appropriate procedure for changing and holding pitch with the fitted mechanism.",
                                        "questions": [
                                            {
                                                "text": "How does this drum change head tension, and which controls are intended for routine pitch changes?",
                                                "kind": "definition",
                                                "id": "tuning-operation-q01"
                                            },
                                            {
                                                "text": "What documented procedure and limits govern adjustment without forcing the mechanism or overtensioning the head?",
                                                "kind": "action",
                                                "id": "tuning-operation-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "sounding-pitch-verification",
                                "name": "Sounding pitch verification",
                                "description": "Relates measured pitch and usable range to reference tuning and any indicator.",
                                "findings": [
                                    {
                                        "id": "range-and-indicator-agreement",
                                        "name": "Range and indicator agreement",
                                        "description": "Record the verified usable range and compare sounding pitch with indicated pitch where a gauge is fitted.",
                                        "questions": [
                                            {
                                                "text": "What lowest and highest pitches give acceptable response under a stated test method and reference tuning?",
                                                "kind": "measurement",
                                                "id": "range-and-indicator-agreement-q01"
                                            },
                                            {
                                                "text": "If a pitch gauge is fitted, how closely does it agree with sounding pitch across the range and after repeated tuning changes?",
                                                "kind": "measurement",
                                                "id": "range-and-indicator-agreement-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "striking-and-acoustic-response",
                        "name": "Striking and acoustic response",
                        "description": "Connects playing inputs to pitch clarity, attack, sustain and sound termination.",
                        "rationale": "A drum may reach a target pitch yet respond poorly to the strokes and damping required for its intended use.",
                        "layers": [
                            {
                                "id": "mallet-and-strike-response",
                                "name": "Mallet and strike response",
                                "description": "Characterises response under specified mallets, striking positions and dynamics.",
                                "findings": [
                                    {
                                        "id": "attack-and-pitch-clarity",
                                        "name": "Attack and pitch clarity",
                                        "description": "Assess audible response while recording enough playing conditions to make observations interpretable.",
                                        "questions": [
                                            {
                                                "text": "Which mallet, strike position and dynamic level were used to assess attack and pitch clarity?",
                                                "kind": "provenance",
                                                "id": "attack-and-pitch-clarity-q01"
                                            },
                                            {
                                                "text": "Under those conditions, are there unwanted rattles, buzzing or inconsistent responses at particular pitches?",
                                                "kind": "measurement",
                                                "id": "attack-and-pitch-clarity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "sustain-and-damping",
                                "name": "Sustain and damping",
                                "description": "Assesses decay and the ability to stop the sounding head.",
                                "findings": [
                                    {
                                        "id": "sound-duration-control",
                                        "name": "Sound duration control",
                                        "description": "Record sustain and damping behaviour with pitch, stroke and acoustic setting identified.",
                                        "questions": [
                                            {
                                                "text": "How is decay measured or judged, and at which pitch, stroke level and room conditions?",
                                                "kind": "measurement",
                                                "id": "sound-duration-control-q01"
                                            },
                                            {
                                                "text": "Can the player access the head to damp it as required without obstruction from the setup?",
                                                "kind": "action",
                                                "id": "sound-duration-control-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "head-and-mechanism-condition",
                        "name": "Head and mechanism condition",
                        "description": "Assesses serviceability of the tensioned membrane and the mechanism that controls it.",
                        "rationale": "Head seating, local tension and mechanism faults can undermine both musical response and reliable pitch adjustment.",
                        "layers": [
                            {
                                "id": "membrane-seating-and-wear",
                                "name": "Membrane seating and wear",
                                "description": "Examines head condition and its contact with the bearing edge.",
                                "findings": [
                                    {
                                        "id": "head-serviceability",
                                        "name": "Head serviceability",
                                        "description": "Record visible defects, seating concerns and evidence used to decide whether adjustment or replacement is appropriate.",
                                        "questions": [
                                            {
                                                "text": "What wear, tears, deformation or seating irregularities are visible on the head and accessible bearing edge?",
                                                "kind": "measurement",
                                                "id": "head-serviceability-q01"
                                            },
                                            {
                                                "text": "What instrument-specific procedure governs checking local tension and replacing or reseating the head?",
                                                "kind": "action",
                                                "id": "head-serviceability-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "mechanism-retention-and-service",
                                "name": "Mechanism retention and service",
                                "description": "Checks tuning travel, pitch retention and applicable maintenance instructions.",
                                "findings": [
                                    {
                                        "id": "tuning-reliability",
                                        "name": "Tuning reliability",
                                        "description": "Distinguish observed slipping, binding or pitch drift from assumptions about their cause.",
                                        "questions": [
                                            {
                                                "text": "Does the tuning mechanism move through its intended travel and retain selected pitches under documented test conditions?",
                                                "kind": "measurement",
                                                "id": "tuning-reliability-q01"
                                            },
                                            {
                                                "text": "Which adjustment, lubrication or repair procedures are specified for this mechanism, and which require a qualified technician?",
                                                "kind": "action",
                                                "id": "tuning-reliability-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "set-readiness-and-handling",
                        "name": "Set readiness and handling",
                        "description": "Relates each drum's capability to ensemble setup, environmental conditions and movement.",
                        "rationale": "Usable individual drums still need compatible pitch assignments, accessible controls and appropriate handling to function as a timpani set.",
                        "layers": [
                            {
                                "id": "pitch-coverage-and-layout",
                                "name": "Pitch coverage and layout",
                                "description": "Assesses whether the available drums and their arrangement support the intended part.",
                                "findings": [
                                    {
                                        "id": "set-assignment-feasibility",
                                        "name": "Set assignment feasibility",
                                        "description": "Map required notes and tuning changes to verified drum capabilities and player access.",
                                        "questions": [
                                            {
                                                "text": "Which drum covers each required note, and where do range gaps or impractical retuning demands remain?",
                                                "kind": "boundary",
                                                "id": "set-assignment-feasibility-q01"
                                            },
                                            {
                                                "text": "Does the arrangement permit the required strikes, damping and tuning-control movements while each drum remains stable?",
                                                "kind": "action",
                                                "id": "set-assignment-feasibility-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "environment-and-movement",
                                "name": "Environment and movement",
                                "description": "Establishes readiness after relocation or changes in storage and playing conditions.",
                                "findings": [
                                    {
                                        "id": "handling-and-retuning-readiness",
                                        "name": "Handling and retuning readiness",
                                        "description": "Record supported handling points, transport provisions and checks needed before resuming use.",
                                        "questions": [
                                            {
                                                "text": "What instructions identify lifting points, caster or brake use where fitted, and protection for the head and tuning mechanism during transport?",
                                                "kind": "provenance",
                                                "id": "handling-and-retuning-readiness-q01"
                                            },
                                            {
                                                "text": "After relocation or environmental change, which stability, mechanism and sounding-pitch checks are needed before playing?",
                                                "kind": "action",
                                                "id": "handling-and-retuning-readiness-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 describes the instrument class, not a particular manufacturer's model or an individual set.",
                                            "Dimensions and tuning spans are approximate; practical note ranges and pedal behavior depend on the instrument.",
                                            "No instrument-specific manufacturing standard or classification identifier is asserted from recall."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of timpani this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Hand-tuned timpani with individual tension screws",
                                            "Pedal-tuned timpani",
                                            "Chain-tuned timpani",
                                            "Rotary-tuned timpani"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of timpani 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": [
                                            "Providing pitched bass, rhythmic emphasis and harmonic support in orchestras",
                                            "Performing in concert bands and wind ensembles",
                                            "Accompanying opera, ballet and choral works",
                                            "Performing solo and chamber repertoire",
                                            "Producing pitch changes and glissandi during performance"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of timpani 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": "Nominal head diameter",
                                                "typical_range": "20-32 for common orchestral instruments",
                                                "unit": "inch"
                                            },
                                            {
                                                "quantity": "Usable tuning span of an individual drum",
                                                "typical_range": "Approximately a perfect fifth, depending on size, head and mechanism",
                                                "unit": "musical interval"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of timpani 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": [
                                            "Uneven head tension produces unclear pitch and inconsistent tone.",
                                            "Head wear, stretching or damage reduces tuning stability and may require replacement.",
                                            "Temperature and humidity changes affect tuning, especially with animal-skin heads.",
                                            "Pedal, linkage or tension-system faults can cause pitch drift or prevent reliable tuning.",
                                            "High sound levels during forceful playing can create hearing risk."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of timpani this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "English usage includes both 'timpani' and 'kettledrums'; 'timpano' denotes one drum.",
                                            "German orchestral usage calls the instruments 'Pauken', while French usage uses 'timbales'."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of timpani 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": "Kettle drum",
                                                "difference": "The broader construction category includes bowl-bodied drums from multiple musical traditions; timpani conventionally denotes the tunable orchestral instruments."
                                            },
                                            {
                                                "name": "Bass drum",
                                                "difference": "An orchestral bass drum normally supplies low, indefinite-pitch sound rather than notes tuned to the harmony."
                                            },
                                            {
                                                "name": "Tom-tom",
                                                "difference": "A tom-tom generally has a tubular shell and is not designed for the same precise, readily adjustable orchestral pitch role."
                                            },
                                            {
                                                "name": "Timbales",
                                                "difference": "In English, timbales usually means shallow, metal-shell drums associated with Latin music; the French word 'timbales' can instead mean timpani."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of timpani this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does an existing Vercy world model already cover timpani or tunable kettledrums, requiring this registry entry to link to that model?",
                "Which historical and regional kettledrum forms belong within this registry sense of timpani, and which require neighbouring models?",
                "What authoritative sources establish size-dependent pitch ranges and a defensible method for judging usable pitch limits?",
                "Which maintenance and transport requirements differ among tuning mechanisms, head materials and manufacturers?",
                "Are any instrument-specific standards or certification requirements applicable, and how should measured environmental sensitivity be distinguished from general care advice?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 17,
                "questions": 27
            }
        },
        "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 timpani, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to recognise timpani, assess their pitch capability and physical readiness, and decide how they may be tuned, played, maintained or moved.",
            "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: kus, naqara.",
                "2 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 67 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 timpani, 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": [
                        "kus",
                        "naqara"
                    ]
                }
            ],
            "standing": "Described in 67 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 2 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 timpani from another, and a timpani 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 timpani, 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 timpani, 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 timpani 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 timpani, 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 timpani, 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 timpani 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 timpani 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 timpani, 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 timpani, 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 timpani 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 timpani from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a timpani, 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 timpani, 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 timpani 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 timpani 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 timpani, 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 timpani, 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 timpani 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 timpani is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a timpani, 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 timpani, 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 timpani 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 timpani is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a timpani, 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 timpani, 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 timpani 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 timpani 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 timpani is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a timpani, 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 timpani, 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 timpani 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 timpani 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 timpani, 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 timpani, 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 timpani 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 timpani 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 timpani between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a timpani, 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 timpani, 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 timpani 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 timpani, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a timpani 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 timpani, 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 timpani, 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 timpani 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 timpani 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 timpani 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 timpani, 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 timpani 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 timpani 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 timpani 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 timpani 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 timpani 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 timpani, 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 timpani 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 timpani and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a timpani, 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 timpani, 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 timpani 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 timpani is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a timpani, 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 timpani, 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 timpani 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
            }
        }
    }
}