{ "model": { "rank": 5960, "code": "thing-q193176", "model_id": "vr.tr.coccyx", "name": "coccyx", "purpose": "Enable an AI agent to recognise a coccyx, record its anatomical and functional state, and identify appropriate assessment or care pathways without treating uncertain observations as diagnoses.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q193176/", "tier": 2, "score": 63, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 63, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q193176", "url": "https://www.wikidata.org/wiki/Q193176", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T10:20:32Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.00379032, "turns": 1, "seconds": 47.6, "error": null }, "codex": { "seconds": 78.2, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07b61-153c-7491-97e8-aeb2d557dfa5\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: coccyx\nRegistry id: vr.tr.coccyx\nPlane / domain: PHY / PHY.LIV\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Vercy mod" } } }, "metaModel": { "id": "THING-Q193176", "registryId": "vr.tr.coccyx", "name": "coccyx", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.LIV" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q193176/", "model": { "registry_id": "vr.tr.coccyx", "name": "coccyx", "purpose": "Enable an AI agent to recognise a coccyx, record its anatomical and functional state, and identify appropriate assessment or care pathways without treating uncertain observations as diagnoses.", "definition": "The coccyx is the terminal, typically fused caudal segment of the human vertebral column, formed from three to five rudimentary caudal vertebrae that articulate cranially with the apex of the sacrum and provide attachment for pelvic floor and gluteal musculature.", "scope_statement": "This model owns an individual human coccyx as the terminal skeletal structure below the sacrum, including its constituent segments, articulations, local attachments, structural condition and evidence of its contribution to symptoms or function.", "in_scope": [ "Identification, boundaries and constituent coccygeal segments", "Coccygeal shape, orientation, alignment and fusion pattern", "Sacrococcygeal and intercoccygeal articulation and movement", "Local attachment relationships and structural integrity", "Evidence connecting the coccyx to pain, pressure sensitivity and functional limitation", "Assessment, intervention history and changes in the coccyx over time" ], "out_of_scope": [ "The sacrum and lumbar spine as complete anatomical structures", "Whole-pelvis geometry and pelvic-ring stability", "Pelvic-floor muscles, ligaments and their disorders as independently modelled structures", "Rectal, anal, reproductive and urinary organ conditions", "Overlying skin and natal-cleft conditions, including pilonidal disease", "Whole-person pain management, medication prescribing and surgical protocols" ], "distinguishing_features": [ "Identify the terminal midline skeletal structure immediately inferior to the sacrum; exclude the larger sacral structure above the sacrococcygeal boundary.", "Establish identity from anatomical position and coccygeal morphology rather than requiring one fixed segment count or complete fusion.", "Separate the coccygeal bone and articulations from adjacent soft tissue; a tender natal-cleft lesion alone does not establish a coccygeal abnormality.", "Distinguish the coccyx from the paired ischial tuberosities by its midline terminal spinal position.", "Treat pain described as 'tailbone pain' as a symptom location until evidence establishes whether the coccyx is involved." ], "characteristics": [ { "name": "Anatomical identity and completeness", "kind": "state", "unit_or_values": "Present and apparently complete | partly absent | absent | indeterminate; evidence and reason for absence when known", "why_it_matters": "Distinguishes an intact coccyx from a remnant, prior resection or incomplete observation." }, { "name": "Observable segment count", "kind": "measurement", "unit_or_values": "Integer count with method and confidence; indeterminate when fusion or image quality prevents counting", "why_it_matters": "Supports description and localisation without assuming that variation is pathological." }, { "name": "Segment fusion pattern", "kind": "category", "unit_or_values": "Fused | unfused | indeterminate, recorded at each identifiable junction", "why_it_matters": "Locates potential articulations and prevents fusion from being confused with missing segments." }, { "name": "Shape and orientation", "kind": "category", "unit_or_values": "Described curvature, angulation, lateral deviation and focal prominence; named classification only when its source is specified", "why_it_matters": "Supports recognition, comparison and investigation of local pressure relationships." }, { "name": "Junction alignment", "kind": "state", "unit_or_values": "Alignment description for the sacrococcygeal and visible intercoccygeal junctions, with posture and assessment method", "why_it_matters": "Localises an observed relationship without automatically labelling it an injury." }, { "name": "Position-dependent movement", "kind": "measurement", "unit_or_values": "Angular change in degrees or translation in millimetres where measurable, with compared positions and protocol; otherwise qualitative or unknown", "why_it_matters": "Allows movement to be assessed separately from appearance in a single position." }, { "name": "Structural integrity", "kind": "state", "unit_or_values": "No abnormality identified | suspected abnormality | confirmed abnormality | indeterminate, with location, evidence and interpretation", "why_it_matters": "Separates observations from diagnostic conclusions and identifies findings needing review." }, { "name": "Local attachment relationships", "kind": "relation", "unit_or_values": "Named attaching structure, attachment region and observed or inferred relationship", "why_it_matters": "Connects coccygeal findings to neighbouring tissues while preserving their separate ownership." }, { "name": "Symptom concordance", "kind": "relation", "unit_or_values": "Reported symptom location and provoking activity linked to examination or imaging findings; concordant | discordant | unresolved", "why_it_matters": "Prevents anatomical variation or incidental imaging findings from being assumed to explain pain." }, { "name": "Functional tolerance", "kind": "measurement", "unit_or_values": "Reported sitting duration in minutes, task-specific limitation and symptom score using a named scale, with conditions and date", "why_it_matters": "Makes changes in daily impact comparable across assessments." } ], "affordances": [ "Identify and annotate the coccyx and its visible segments on an anatomical record or image.", "Compare shape, alignment and integrity across dated observations while accounting for posture and method.", "Link local symptoms and functional limitations to supporting or conflicting coccygeal evidence.", "Identify missing evidence or findings that require qualified clinical interpretation.", "Record clinician-directed pressure-management measures or interventions and their observed outcomes.", "Distinguish a structural observation, a suspected pain source and a confirmed clinical conclusion." ] }, "sources": [ { "id": "gray-anatomy-coccyx", "title": "Coccyx - Gray's Anatomy of the Human Body", "url": "https://www.bartleby.com/lit-hub/anatomy-of-the-human-body/3c-the-vertebral-column", "what_it_supports": "Classic anatomical description of the coccyx as the terminal caudal vertebrae, segment count, and ligamentous attachments.", "url_status": "live" }, { "id": "radiopaedia-coccyx", "title": "Coccyx | Radiology Reference Article", "url": "https://radiopaedia.org/articles/coccyx", "what_it_supports": "Segment number variation, sacrococcygeal joint, Postacchini and Massobrio morphological types, and imaging appearance.", "url_status": "unverified" }, { "id": "ncbi-statpearls-coccydynia", "title": "Coccydynia - StatPearls", "url": "https://www.ncbi.nlm.nih.gov/books/NBK553114/", "what_it_supports": "Clinical presentation of coccygeal pain, aetiology (trauma, childbirth, idiopathic), conservative and surgical management.", "url_status": "live" }, { "id": "wikidata-q16349", "title": "coccyx (Q16349)", "url": "https://www.wikidata.org/wiki/Q16349", "what_it_supports": "Stable identifier, aliases (tailbone, os coccygis), and links to anatomical ontologies (FMA, UBERON, MeSH, TA).", "url_status": "live" } ], "structure": { "bundles": [ { "id": "coccygeal-identity-and-boundaries", "name": "Coccygeal identity and boundaries", "description": "Establish which terminal skeletal structure is represented and what portions can be identified.", "rationale": "Coccygeal segmentation, fusion and incomplete visibility can make identity and boundaries uncertain.", "layers": [ { "id": "terminal-spinal-location", "name": "Terminal spinal location", "description": "Locate the coccyx relative to the sacrum and adjacent pelvic landmarks.", "findings": [ { "id": "sacrum-coccyx-boundary", "name": "Sacrum-coccyx boundary", "description": "Record the evidence identifying the proximal coccygeal boundary and distal extent.", "questions": [ { "text": "What anatomical landmarks establish that the observed structure is the coccyx?", "kind": "definition", "id": "sacrum-coccyx-boundary-q01" }, { "text": "Where is its boundary with the sacrum, and is the distal tip included in the observation?", "kind": "boundary", "id": "sacrum-coccyx-boundary-q02" } ] } ] }, { "id": "segments-and-completeness", "name": "Segments and completeness", "description": "Describe identifiable segments, fusion and any absent portion.", "findings": [ { "id": "coccygeal-segment-inventory", "name": "Coccygeal segment inventory", "description": "Record visible segmentation without interpreting an uncertain count as an anatomical absence.", "questions": [ { "text": "How many segments and junctions can be distinguished, and which appear fused?", "kind": "measurement", "id": "coccygeal-segment-inventory-q01" }, { "text": "If a portion is not identified, what evidence distinguishes limited visibility from anatomical absence or prior removal?", "kind": "provenance", "id": "coccygeal-segment-inventory-q02" } ] } ] } ] }, { "id": "coccygeal-form-and-articulation", "name": "Coccygeal form and articulation", "description": "Describe shape, junction alignment and observed movement.", "rationale": "A coccyx's appearance and movement must be recorded separately before their significance can be judged.", "layers": [ { "id": "curvature-and-prominence", "name": "Curvature and prominence", "description": "Describe the coccygeal profile and local projections in an explicit anatomical frame.", "findings": [ { "id": "coccygeal-profile", "name": "Coccygeal profile", "description": "Capture curvature, angulation, deviation or focal prominence as observations.", "questions": [ { "text": "What curvature, angulation, lateral deviation or focal bony prominence is observed, and at which segment?", "kind": "measurement", "id": "coccygeal-profile-q01" }, { "text": "Which view, posture and reference landmarks support that description?", "kind": "provenance", "id": "coccygeal-profile-q02" } ] } ] }, { "id": "junction-alignment-and-motion", "name": "Junction alignment and motion", "description": "Assess relationships at the sacrococcygeal and intercoccygeal junctions.", "findings": [ { "id": "position-dependent-junction-state", "name": "Position-dependent junction state", "description": "Record alignment and any demonstrated movement without importing unsupported normality thresholds.", "questions": [ { "text": "What alignment or movement is demonstrated at each assessable junction, and between which positions?", "kind": "measurement", "id": "position-dependent-junction-state-q01" }, { "text": "If movement is labelled restricted or excessive, which validated protocol and reference criteria support that label?", "kind": "provenance", "id": "position-dependent-junction-state-q02" } ] } ] } ] }, { "id": "coccygeal-integrity-and-tissue-interfaces", "name": "Coccygeal integrity and tissue interfaces", "description": "Locate structural abnormalities and relationships with attached or adjacent tissues.", "rationale": "Local symptoms may involve bone, a junction, an attachment or neighbouring tissue, each requiring distinct evidence.", "layers": [ { "id": "bone-and-junction-condition", "name": "Bone and junction condition", "description": "Describe evidence of injury or other structural change.", "findings": [ { "id": "localised-structural-abnormality", "name": "Localised structural abnormality", "description": "Keep the observed abnormality, its interpretation and its certainty distinguishable.", "questions": [ { "text": "What abnormality is observed in the coccygeal bone or junctions, and where exactly is it located?", "kind": "measurement", "id": "localised-structural-abnormality-q01" }, { "text": "What evidence supports its proposed cause or timing, including any connection to reported trauma?", "kind": "provenance", "id": "localised-structural-abnormality-q02" } ] } ] }, { "id": "attachments-and-adjacent-tissues", "name": "Attachments and adjacent tissues", "description": "Connect coccygeal attachment regions and nearby tissue findings to their own anatomical records.", "findings": [ { "id": "coccygeal-tissue-interface", "name": "Coccygeal tissue interface", "description": "Identify whether a local finding concerns the coccyx, an attachment or a neighbouring structure.", "questions": [ { "text": "Which ligament, muscle or other soft-tissue relationship is implicated, and is that relationship directly observed or inferred?", "kind": "provenance", "id": "coccygeal-tissue-interface-q01" }, { "text": "Which component of the finding belongs to the coccyx and which belongs to a neighbouring tissue model?", "kind": "boundary", "id": "coccygeal-tissue-interface-q02" } ] } ] } ] }, { "id": "coccygeal-symptoms-and-care-decisions", "name": "Coccygeal symptoms and care decisions", "description": "Relate local findings to reported symptoms, functional impact and qualified care decisions.", "rationale": "Tailbone-region pain does not by itself establish the coccyx as its source or justify a particular intervention.", "layers": [ { "id": "symptom-and-function-concordance", "name": "Symptom and function concordance", "description": "Assess the agreement between symptom location, provoking activities and anatomical evidence.", "findings": [ { "id": "coccygeal-symptom-attribution", "name": "Coccygeal symptom attribution", "description": "Record the strength and limitations of evidence that the coccyx contributes to symptoms.", "questions": [ { "text": "Where are symptoms reported, and how do sitting, rising from sitting or other specified activities affect them?", "kind": "measurement", "id": "coccygeal-symptom-attribution-q01" }, { "text": "What examination or imaging evidence supports or challenges a coccygeal source?", "kind": "provenance", "id": "coccygeal-symptom-attribution-q02" }, { "text": "What evidence suggests that an adjacent structure or referred pain requires separate assessment?", "kind": "boundary", "id": "coccygeal-symptom-attribution-q03" } ] } ] }, { "id": "care-history-and-reassessment", "name": "Care history and reassessment", "description": "Record coccyx-directed care, observed outcomes and unresolved decisions.", "findings": [ { "id": "coccyx-directed-care-status", "name": "Coccyx-directed care status", "description": "Link each care action to its clinical rationale and subsequent structural or functional observations.", "questions": [ { "text": "What coccyx-directed measures or procedures have been undertaken, when, and under whose clinical direction?", "kind": "provenance", "id": "coccyx-directed-care-status-q01" }, { "text": "What changed in sitting tolerance, pain or anatomical state after each action, and how was change assessed?", "kind": "measurement", "id": "coccyx-directed-care-status-q02" }, { "text": "What unresolved finding requires qualified review before a further coccyx-directed action can be selected?", "kind": "action", "id": "coccyx-directed-care-status-q03" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Typical four-segment coccyx (Co1-Co4)", "Three-segment coccyx", "Five-segment coccyx", "Sacrococcygeal synostosis (fused sacrococcygeal joint)", "Type I (slightly curved, apex pointing caudally)", "Type II (more markedly curved, apex pointing anteriorly)", "Type III (sharply angulated anteriorly)", "Type IV (subluxated / retroverted)" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of coccyx this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "scheme": "Wikidata", "value_or_pattern": "Q16349", "note": "Item 'coccyx' (also tailbone, os coccygis)." }, { "scheme": "FMA", "value_or_pattern": "FMA:20229", "note": "Foundational Model of Anatomy identifier for the coccyx." }, { "scheme": "UBERON", "value_or_pattern": "UBERON:0001350", "note": "Uberon anatomical ontology class 'coccyx'." }, { "scheme": "MeSH", "value_or_pattern": "D003050", "note": "Medical Subject Headings descriptor Coccyx." }, { "scheme": "Terminologia Anatomica", "value_or_pattern": "TA98 A02.2.06.001 / TA2 1092", "note": "Official anatomical term os coccygis / coccyx." }, { "scheme": "ICD-10-CM", "value_or_pattern": "S32.2- (fracture of coccyx); M53.3 (sacrococcygeal disorders, not elsewhere classified)", "note": "Clinical coding of coccygeal injury and coccydynia, not of the organ itself." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of coccyx this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Terminologia Anatomica (FIPAT / IFAA) - official Latin and English anatomical nomenclature for os coccygis.", "ICD-10 / ICD-10-CM (WHO / national adaptations) - codes for coccygeal fracture and sacrococcygeal disorders used in clinical and billing records.", "SNOMED CT (SNOMED International) - concept modelling of the coccyx as a body structure and of coccydynia / coccygectomy as clinical findings and procedures." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of coccyx this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Palpated and imaged as a landmark at the caudal end of the spine in trauma, obstetrics, and pelvic-floor assessment.", "Weight-bearing contact surface in sitting; a common site of post-fall or postpartum pain (coccydynia).", "Surgical target of coccygectomy when conservative treatment of refractory coccydynia fails.", "Radiographic and CT landmark for counting caudal vertebral segments and for distinguishing sacralisation versus coccygeal variation.", "Attachment site for the levator ani, coccygeus, gluteus maximus, and the anococcygeal ligament / raphe, relevant to continence and pelvic support." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of coccyx this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "quantity": "Number of coccygeal segments", "typical_range": "3-5 (mode 4)", "unit": "count" }, { "quantity": "Coccygeal length (tip of Co1 to caudal tip)", "typical_range": "about 2-4", "unit": "cm" }, { "quantity": "Intercoccygeal / sacrococcygeal angle (morphological type)", "typical_range": "near-straight (type I) to >90° anterior angulation (type III)", "unit": "degree" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of coccyx this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Coccydynia (chronic tailbone pain) after fall onto the buttocks, prolonged sitting, or vaginal childbirth.", "Coccygeal fracture or dislocation, often from axial trauma in the seated position.", "Hypermobility or posterior subluxation of the sacrococcygeal or intercoccygeal joints on dynamic sitting radiographs.", "Iatrogenic injury or persistent pain after coccygectomy, including wound infection given the proximity to the anus.", "Rare tumours (e.g. sacrococcygeal teratoma, chordoma) presenting at or adjacent to the coccyx." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of coccyx this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "English common name 'tailbone' versus anatomical 'coccyx' / Latin os coccygis; many European languages keep a coccyx-derived form (French coccyx, German Steißbein for the common name).", "Segment number and sacrococcygeal fusion rates vary among individuals and are reported with modest sex and population differences in morphometric series; fusion increases with age.", "Obstetric and pelvic-floor practice treats the coccyx more as a pain generator in some regions (dynamic radiography, injection, coccygectomy pathways) than in others where it is rarely imaged unless fractured." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of coccyx this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "name": "sacrum (especially S5 / sacral apex)", "difference": "The sacrum is a large triangular fusion of typically five sacral vertebrae with sacral foramina and a sacral canal; the coccyx lacks foramina and a spinal canal and begins distal to the last sacral segment at the sacrococcygeal joint." }, { "name": "caudal (embryonic tail) vertebrae in other mammals", "difference": "Non-human caudal vertebrae remain separate, numerous, and often mobile; the human coccyx is a vestigial, usually partly fused remnant of three to five caudal segments." }, { "name": "anococcygeal ligament / raphe and pelvic floor (soft tissue, not bone)", "difference": "These are fibromuscular attachments onto the coccyx; they are distinguished from the osseous coccyx on MRI and by remaining mobile and non-ossified on radiographs." }, { "name": "sacral cornua / coccygeal cornua (paired processes)", "difference": "Cornua are small articular processes at the sacrococcygeal junction, not the coccygeal body itself; they may form a rudimentary zygapophyseal joint with the sacral cornua." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of coccyx this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does registry entry vr.tr.coccyx cover human anatomy only, as this draft assumes, or must it support other species?", "Which morphological classifications and measurement conventions have sufficient reproducibility for use across coccygeal assessments?", "Which position-dependent imaging protocols and population-specific reference ranges can support interpretation of coccygeal movement?", "What evidence is sufficient to attribute symptoms to the coccyx rather than incidental variation, neighbouring tissue or referred pain?", "Which clinical guidelines should govern escalation criteria and the prerequisites for coccyx-directed interventions?" ], "statistics": { "bundles": 5, "layers": 9, "findings": 16, "questions": 26 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "chemical substance or material", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a coccyx, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise a coccyx, record its anatomical and functional state, and identify appropriate assessment or care pathways without treating uncertain observations as diagnoses.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured", "consumed or used up" ], "distinguishingFeatures": [ "Described in 63 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 coccyx, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state", "use it up, and then need more of it" ], "howItIsRecognised": [ "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay." ], "relatedModels": [], "standing": "Described in 63 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one coccyx from another, and a coccyx 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 coccyx, 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 coccyx, 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 coccyx 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 coccyx, 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 coccyx, 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 coccyx 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 coccyx 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 coccyx, 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 coccyx, 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 coccyx 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 coccyx from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a coccyx, 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 coccyx, 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 coccyx 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 coccyx 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 coccyx, 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 coccyx, 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 coccyx 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 coccyx is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a coccyx, 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 coccyx, 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 coccyx 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 coccyx is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a coccyx, 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 coccyx, 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 coccyx 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 coccyx 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 coccyx is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a coccyx, 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 coccyx, 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 coccyx 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 coccyx 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 coccyx, 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 coccyx, 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 coccyx 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 coccyx 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 coccyx between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a coccyx, 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 coccyx, 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 coccyx 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 coccyx, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a coccyx 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 coccyx, 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 coccyx, 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 coccyx is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "use-and-operation", "name": "Use and operation", "description": "What can be done with a coccyx and what it takes to do it.", "rationale": "An agent that can recognise a thing but not act on it has only half a model.", "layers": [ { "id": "intended-use", "name": "Intended use and function", "description": "What a coccyx is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a coccyx performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a coccyx, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "function-and-purpose-q02", "text": "Who or what asserted this about the use of a coccyx, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "function-and-purpose-q03", "text": "What may an agent decide or do once the use of a coccyx is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "handling-and-procedure", "name": "Handling and procedure", "description": "The steps, skills and tools involved in using a coccyx.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a coccyx at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a coccyx, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "procedures-and-skills-q02", "text": "Who or what asserted this about handling a coccyx, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "procedures-and-skills-q03", "text": "What may an agent decide or do once handling a coccyx is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "supply-and-consumption", "name": "Supply and consumption", "description": "Quantities, rates and what running out means.", "findings": [ { "id": "consumption-and-stock", "name": "Consumption, stock and replenishment", "description": "How much of a coccyx there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a coccyx, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "consumption-and-stock-q02", "text": "Who or what asserted this about the supply of a coccyx, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "consumption-and-stock-q03", "text": "What may an agent decide or do once the supply of a coccyx is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "composition-and-identity", "name": "Composition, grade and chemical identity", "description": "What coccyx is made of and how pure the thing in hand is.", "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.", "layers": [ { "id": "chemical-identity", "name": "Chemical identity", "description": "Formula, structure and the registry numbers that name it unambiguously.", "findings": [ { "id": "identity-record", "name": "Identity and registry numbers", "description": "What identifies this substance across suppliers and regulators.", "questions": [ { "id": "identity-record-q01", "text": "What formula, structure and registry identifiers name coccyx unambiguously?", "kind": "definition" }, { "id": "identity-record-q02", "text": "Which related substances share a name in common use but not an identifier?", "kind": "boundary" } ] } ] }, { "id": "grade-and-impurities", "name": "Grade, purity and impurities", "description": "The specification a batch meets and what else is in it.", "findings": [ { "id": "specification", "name": "Specification and assay", "description": "How purity is stated and measured, and which impurities matter.", "questions": [ { "id": "specification-q01", "text": "What grades of coccyx exist, how is purity assayed, and which impurities are limited?", "kind": "measurement" }, { "id": "specification-q02", "text": "Which use requires which grade, and what happens when a lower grade is substituted?", "kind": "action" } ] } ] } ] }, { "id": "properties-and-behaviour", "name": "Properties and behaviour", "description": "How coccyx behaves under conditions an agent can measure or change.", "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.", "layers": [ { "id": "physical-constants", "name": "Physical constants", "description": "Values that hold for the pure substance, with their conditions.", "findings": [ { "id": "constants-record", "name": "Constants and conditions", "description": "The quantities worth recording and the state they apply in.", "questions": [ { "id": "constants-record-q01", "text": "What are the defining physical constants of coccyx, in what units and under what conditions?", "kind": "measurement" }, { "id": "constants-record-q02", "text": "Which of these values change with grade or form rather than being fixed?", "kind": "boundary" } ] } ] }, { "id": "stability-and-reactivity", "name": "Stability and reactivity", "description": "What it reacts with, degrades into, and how it is stored.", "findings": [ { "id": "incompatibilities", "name": "Incompatibilities and degradation", "description": "What must not meet it, and what it becomes over time.", "questions": [ { "id": "incompatibilities-q01", "text": "What is coccyx incompatible with, and what does it degrade into under storage?", "kind": "definition" }, { "id": "incompatibilities-q02", "text": "What storage and handling does that require, and who is competent to do it?", "kind": "action" } ] } ] } ] }, { "id": "hazard-and-regulation", "name": "Hazard classification and regulation", "description": "How coccyx can harm, and what the law says about holding and moving it.", "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.", "layers": [ { "id": "hazard-class", "name": "Hazard classification", "description": "Classified hazards, exposure limits and protective measures.", "findings": [ { "id": "classified-hazards", "name": "Classified hazards and limits", "description": "The classification, the scheme it belongs to, and the limits set.", "questions": [ { "id": "classified-hazards-q01", "text": "How is coccyx classified for hazard, under which scheme, and what exposure limits apply?", "kind": "definition" }, { "id": "classified-hazards-q02", "text": "What protection does handling require, and what must an agent refuse to do without it?", "kind": "action" } ] } ] }, { "id": "regulatory-identity", "name": "Regulatory identity and control", "description": "Registration, restriction and transport rules by jurisdiction.", "findings": [ { "id": "controls", "name": "Controls and jurisdiction", "description": "Where it is restricted and what the restriction attaches to.", "questions": [ { "id": "controls-q01", "text": "Which registrations, restrictions or transport rules cover coccyx, and where?", "kind": "provenance" }, { "id": "controls-q02", "text": "Does the control attach to the substance, its concentration, or its intended use?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a coccyx 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 coccyx and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a coccyx, 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 coccyx, 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 coccyx 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 coccyx is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a coccyx, 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 coccyx, 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 coccyx is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 9, "layers": 20, "findings": 22, "questions": 60 } } } }