{ "model": { "rank": 8067, "code": "thing-q6502030", "model_id": "vr.tr.cubit", "name": "cubit", "purpose": "Let an agent explain cubits by definition, regional variants, subdivisions and conversion, noting uncertainty in historical values.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QTY", "industry": "", "version": "", "url": "/models/thing/q6502030/", "tier": 2, "score": 52, "payload": { "layer": "wikidata", "aliases": [ "Egyptian cubit" ], "aliasCount": 1, "merged": 1, "knownIn": 52, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.cubit", "source": { "dataset": "wikidata", "item": "Q6502030", "url": "https://www.wikidata.org/wiki/Q6502030", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T14:09:48Z", "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": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q6502030", "registryId": "vr.tr.cubit", "name": "cubit", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QTY" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q6502030/", "model": { "registry_id": "vr.tr.cubit", "name": "cubit", "purpose": "Let an agent explain cubits by definition, regional variants, subdivisions and conversion, noting uncertainty in historical values.", "definition": "An ancient unit of length based on the forearm from elbow to fingertip, typically about 44 to 53 centimetres, used in Egypt, Mesopotamia, the Levant and elsewhere; the Egyptian royal cubit of about 52 to 53 centimetres was divided into palms and digits.", "what_it_is_for": "Understanding historical measurements in texts and architecture.", "affordances": [ "convert cubits to metres with stated assumptions", "explain regional variants", "describe subdivisions such as palms and digits", "interpret cubits in historical texts" ], "distinguishing_features": [ "Forearm-based", "Varied by region and period", "Subdivided into palms and digits", "Values are estimates" ], "appearance": "Not physical; surviving cubit rods and references in texts and buildings.", "visual_identification": [ "Cubit rods in museums", "Measurements in ancient texts", "Feet and spans are other body-based units" ], "physical_properties": [ { "quantity": "Egyptian royal cubit", "typical_range": "about 52-53", "unit": "cm", "note": "estimates vary" } ], "families_and_kinds": [ "Egyptian royal cubit", "common or short cubit", "Mesopotamian cubit", "biblical cubit", "other regional cubits" ], "related_models": [ { "relation": "is a kind of", "target": "human-based unit of measurement", "why": "category" }, { "relation": "is related to", "target": "metric linear unit", "why": "modern equivalent" }, { "relation": "is subdivided into", "target": "palm and digit", "why": "subunits" }, { "relation": "is used in", "target": "ancient architecture", "why": "application" } ], "identifiers": [], "standards_and_regulation": [ "No current regulation; historical unit" ], "failure_modes_and_hazards": [ "Presenting one value as exact", "Mixing regional cubits", "Using cubits to support pseudo-historical claims" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "definition", "name": "Definition", "description": "What a cubit is.", "rationale": "Values vary.", "layers": [ { "id": "value", "name": "Value", "description": "Length.", "findings": [ { "id": "value-finding", "name": "Value", "description": "Length.", "questions": [ { "text": "Which cubit is meant, and what length do scholars estimate for it?", "kind": "provenance" }, { "text": "What is the uncertainty?", "kind": "boundary" } ] } ] }, { "id": "subdivisions", "name": "Subdivisions", "description": "Palms and digits.", "findings": [ { "id": "subdivisions-finding", "name": "Subdivisions", "description": "Subdivisions.", "questions": [ { "text": "How was the cubit divided into palms and digits?", "kind": "definition" }, { "text": "Which sources show it?", "kind": "provenance" } ] } ] } ] }, { "id": "conversion", "name": "Conversion", "description": "Converting.", "rationale": "State assumptions.", "layers": [ { "id": "convert", "name": "Convert", "description": "To metres.", "findings": [ { "id": "convert-finding", "name": "Convert", "description": "Conversion.", "questions": [ { "text": "What is this measurement in metres, assuming a stated cubit value?", "kind": "measurement" }, { "text": "How would another value change it?", "kind": "boundary" } ] } ] }, { "id": "texts", "name": "Texts", "description": "Historical texts.", "findings": [ { "id": "texts-finding", "name": "Texts", "description": "Historical texts.", "questions": [ { "text": "Which cubit do scholars think this text refers to?", "kind": "provenance" }, { "text": "Is the interpretation debated?", "kind": "boundary" } ] } ] } ] }, { "id": "evidence", "name": "Evidence", "description": "Archaeology.", "rationale": "Objects anchor values.", "layers": [ { "id": "rods", "name": "Rods", "description": "Cubit rods.", "findings": [ { "id": "rods-finding", "name": "Rods", "description": "Cubit rods.", "questions": [ { "text": "Which surviving cubit rods exist, and where are they held?", "kind": "provenance" }, { "text": "What do they measure?", "kind": "measurement" } ] } ] }, { "id": "buildings", "name": "Buildings", "description": "Architecture.", "findings": [ { "id": "buildings-finding", "name": "Buildings", "description": "Architecture.", "questions": [ { "text": "How have archaeologists inferred cubits from building dimensions?", "kind": "provenance" }, { "text": "How reliable are such inferences?", "kind": "boundary" } ] } ] } ] }, { "id": "learning", "name": "Learning", "description": "Teaching and myths.", "rationale": "Accuracy matters.", "layers": [ { "id": "teach", "name": "Teach", "description": "Classroom use.", "findings": [ { "id": "teach-finding", "name": "Teach", "description": "Teaching.", "questions": [ { "text": "How can body-based units be taught with a cubit activity?", "kind": "action" }, { "text": "Why did standard units replace them?", "kind": "definition" } ] } ] }, { "id": "myths", "name": "Myths", "description": "Pseudo-history.", "findings": [ { "id": "myths-finding", "name": "Myths", "description": "Pseudo-historical claims.", "questions": [ { "text": "Is a claim about sacred or precise cubits supported by evidence?", "kind": "boundary" }, { "text": "What do historians of measurement say?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should regional cubits be separate entries?", "How should museum cubit rods be linked?", "How should uncertainty be recorded?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "unit, quantity or measure", "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 cubit, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain cubits by definition, regional variants, subdivisions and conversion, noting uncertainty in historical values.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: Egyptian cubit.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 52 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 cubit, 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: a unit is a convention. What is seen is an instrument reading in it." ], "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": [ "Egyptian cubit" ] } ], "standing": "Described in 52 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 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 cubit from another, and a cubit 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 cubit, 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 cubit, 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 cubit 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 cubit, 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 cubit, 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 cubit 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 cubit 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 cubit, 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 cubit, 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 cubit 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 cubit from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a cubit, 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 cubit, 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 cubit 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 cubit 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 cubit between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a cubit, 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 cubit, 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 cubit 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 cubit, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a cubit 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 cubit, 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 cubit, 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 cubit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definition-and-realisation", "name": "Definition, dimension and realisation", "description": "What cubit is defined as and how it is realised in practice.", "rationale": "A unit is not the quantity it measures, and its definition has a history that older data still depends on.", "layers": [ { "id": "definition", "name": "Definition and dimension", "description": "The defining relation and the quantity it measures.", "findings": [ { "id": "definition-record", "name": "Definition, body and date", "description": "What defines it now, and what defined it before.", "questions": [ { "id": "definition-record-q01", "text": "How is cubit defined, by which body, and since when?", "kind": "definition" }, { "id": "definition-record-q02", "text": "What was the previous definition, and what data still depends on it?", "kind": "provenance" } ] } ] }, { "id": "conversion", "name": "Conversion and compatibility", "description": "Relations to other units, exact or approximate.", "findings": [ { "id": "conversion-record", "name": "Conversions and their exactness", "description": "Factors, and whether each is exact by definition.", "questions": [ { "id": "conversion-record-q01", "text": "What conversions relate cubit to other units, and which are exact by definition?", "kind": "measurement" }, { "id": "conversion-record-q02", "text": "Where does rounding a conversion change a decision, and how should that be recorded?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a cubit 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 cubit and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a cubit, 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 cubit, 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 cubit 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 cubit is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a cubit, 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 cubit, 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 cubit is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 4, "layers": 8, "findings": 10, "questions": 28 } } } }