{ "model": { "rank": 2270, "code": "thing-q133279", "model_id": "vr.tr.back", "name": "back", "purpose": "Let an agent explain the anatomy and functions of the back, relay common problems and prevention from anatomy and health sources, route red flags to urgent care, and distinguish the back from the spine as a structure, the torso as a whole, the dorsum of hands and feet and the backside in everyday speech, without diagnosing individuals.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QLT", "industry": "", "version": "", "url": "/models/thing/q133279/", "tier": 2, "score": 110, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 110, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.back-artifact", "source": { "dataset": "wikidata", "item": "Q133279", "url": "https://www.wikidata.org/wiki/Q133279", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-14T00:45:21Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 4, "engine": "claude" }, "metaModel": { "id": "THING-Q133279", "registryId": "vr.tr.back", "name": "back", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q133279/", "model": { "registry_id": "vr.tr.back", "name": "back", "purpose": "Let an agent explain the anatomy and functions of the back, relay common problems and prevention from anatomy and health sources, route red flags to urgent care, and distinguish the back from the spine as a structure, the torso as a whole, the dorsum of hands and feet and the backside in everyday speech, without diagnosing individuals.", "definition": "The rear part of the human body from the neck to the pelvis, and the corresponding dorsal region in other vertebrates, containing the vertebral column, spinal cord, back muscles such as the erector spinae, trapezius and latissimus dorsi, ribs, nerves and skin; the back supports posture and movement and protects the spinal cord. Back pain is very common and usually improves, but red flags such as numbness around the genitals or buttocks, new bladder or bowel problems, leg weakness, severe pain after trauma, fever or unexplained weight loss need urgent medical care.", "what_it_is_for": "Posture, movement and protection of the spinal cord.", "affordances": [ "explain anatomy", "relay functions", "relay common problems and prevention", "route red flags" ], "distinguishing_features": [ "Contains the spine", "Large muscle groups", "Protects spinal cord", "Common site of pain" ], "appearance": "The rear surface of the trunk, with the spine running down the midline between muscles and shoulder blades.", "visual_identification": [ "Rear part of the trunk from neck to pelvis", "Back, dorsum", "The spine is the bony column; the torso includes chest and abdomen; the dorsum of the hand is its back surface; backside means buttocks in everyday speech" ], "physical_properties": [ { "quantity": "vertebrae", "typical_range": "33", "unit": "count", "note": "typical, including fused sacral and coccygeal" }, { "quantity": "regions", "typical_range": "cervical, thoracic, lumbar, sacral", "unit": "list", "note": "" }, { "quantity": "low back pain", "typical_range": "a leading cause of disability worldwide", "unit": "note", "note": "Global Burden of Disease, attributed" } ], "families_and_kinds": [ "upper back", "middle back", "lower back", "deep and superficial back muscles" ], "related_models": [ { "relation": "is part of", "target": "human body", "why": "in registry terms" }, { "relation": "contains", "target": "vertebral column", "why": "" }, { "relation": "contains", "target": "erector spinae muscles", "why": "" }, { "relation": "is contrasted with", "target": "torso", "why": "" } ], "identifiers": [], "standards_and_regulation": [ "Manual handling regulations", "Clinical guidelines for low back pain such as NICE NG59" ], "failure_modes_and_hazards": [ "Missing cauda equina syndrome", "Lifting injuries", "Overuse of imaging and opioids, per guidelines" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What the back is.", "rationale": "Science.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "Is there numbness around the genitals or buttocks, new bladder or bowel problems, leg weakness, back pain after major trauma, or pain with fever, in which case seek emergency care?", "kind": "boundary" }, { "text": "What is the back, and how does it differ from the spine, the torso, the dorsum of hands and feet and the everyday backside?", "kind": "definition" } ] } ] }, { "id": "regions", "name": "Regions", "description": "Regions.", "findings": [ { "id": "regions-finding", "name": "Regions", "description": "Regions.", "questions": [ { "text": "What are the upper, middle and lower back regions?", "kind": "definition" }, { "text": "Which entry fits the specific structure?", "kind": "action" } ] } ] } ] }, { "id": "anatomy", "name": "Anatomy", "description": "Anatomy.", "rationale": "Science.", "layers": [ { "id": "spine", "name": "Spine", "description": "Vertebral column.", "findings": [ { "id": "spine-finding", "name": "Spine", "description": "Spine.", "questions": [ { "text": "How is the vertebral column built and curved?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "muscles", "name": "Muscles", "description": "Back muscles.", "findings": [ { "id": "muscles-finding", "name": "Muscles", "description": "Muscles.", "questions": [ { "text": "Which muscles move and stabilise the back?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "health", "name": "Health", "description": "Back pain.", "rationale": "Attribution.", "layers": [ { "id": "pain", "name": "Pain", "description": "Low back pain.", "findings": [ { "id": "pain-finding", "name": "Pain", "description": "Pain.", "questions": [ { "text": "What do clinical guidelines say about managing non-specific low back pain, with recommendations attributed?", "kind": "provenance" }, { "text": "Is the information current?", "kind": "boundary" } ] } ] }, { "id": "prevention", "name": "Prevention", "description": "Prevention.", "findings": [ { "id": "prevention-finding", "name": "Prevention", "description": "Prevention.", "questions": [ { "text": "What do occupational health sources advise on lifting and posture?", "kind": "provenance" }, { "text": "Which entry fits manual handling?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Comparative anatomy.", "rationale": "Context.", "layers": [ { "id": "animals", "name": "Animals", "description": "Dorsal region in animals.", "findings": [ { "id": "animals-finding", "name": "Animals", "description": "Animals.", "questions": [ { "text": "How does the dorsal region differ in quadrupeds?", "kind": "provenance" }, { "text": "Which entry fits dorsum?", "kind": "action" } ] } ] }, { "id": "ontology", "name": "Ontology", "description": "Anatomy ontologies.", "findings": [ { "id": "ontology-finding", "name": "Ontology", "description": "Ontology.", "questions": [ { "text": "How do anatomy ontologies define the back?", "kind": "provenance" }, { "text": "Is the information accurate?", "kind": "boundary" } ] } ] } ] } ] }, "openQuestions": [ "Should back regions be separate entries?", "How should anatomical ontologies be linked?", "Should back pain be a separate entry?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "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 back, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain the anatomy and functions of the back, relay common problems and prevention from anatomy and health sources, route red flags to urgent care, and distinguish the back from the spine as a structure, the torso as a whole, the dorsum of hands and feet and the backside in everyday speech, without diagnosing individuals.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Described in 110 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 back, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "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": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [], "standing": "Described in 110 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 back from another, and a back 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 back, 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 back, 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 back 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 back, 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 back, 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 back 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 back 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 back, 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 back, 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 back 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 back from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a back, 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 back, 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 back 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 back 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 back between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a back, 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 back, 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 back 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 back, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a back 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 back, 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 back, 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 back is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What back is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of back are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is back operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of back and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of back?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as back?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a back 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 back and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a back, 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 back, 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 back 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 back is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a back, 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 back, 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 back is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }