{ "model": { "rank": 13514, "code": "thing-q3064117", "model_id": "vr.tr.face-q3064117", "name": "face", "purpose": "Let an agent reason about faces as countable, measurable parts of a solid, in geometry and in cut objects such as gems and crystals.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QLT", "industry": "", "version": "", "url": "/models/thing/q3064117/", "tier": 2, "score": 37, "payload": { "layer": "wikidata", "aliases": [ "facet", "culet", "bezel", "4-face", "11-face", "12-face", "13-face", "7-face", "8-face", "9-face", "10-face", "5-face", "6-face", "cliff face", "spotface" ], "aliasCount": 15, "merged": 15, "knownIn": 37, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.face-3", "source": { "dataset": "wikidata", "item": "Q3064117", "url": "https://www.wikidata.org/wiki/Q3064117", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T04:26:33Z", "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-Q3064117", "registryId": "vr.tr.face-q3064117", "name": "face", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q3064117/", "model": { "registry_id": "vr.tr.face-q3064117", "name": "face", "purpose": "Let an agent reason about faces as countable, measurable parts of a solid, in geometry and in cut objects such as gems and crystals.", "definition": "A flat surface that forms part of the boundary of a solid object, such as a face of a polyhedron or a facet cut on a gemstone.", "what_it_is_for": "Describing and making the shape of solids: counting, naming and measuring the flat surfaces that bound them.", "affordances": [ "count and name them, which defines a solid or a cut", "measure their area and the angles between them", "cut or polish them, in gem cutting and machining", "use them to identify a crystal or a cut" ], "distinguishing_features": [ "Flat, which separates a face from a curved surface", "Bounded by edges shared with other faces", "Counted and named by position in a solid or a cut", "The human face is a different sense and is not covered here" ], "appearance": "A flat, bounded surface meeting others at edges; on a cut gem, a small polished plane that reflects light at a set angle.", "visual_identification": [ "Flatness and straight edges where it meets neighbouring faces", "On gems, named facets such as table, crown facets, pavilion facets and culet sit in fixed positions", "Curved surfaces are not faces in this sense, even when they bound a solid" ], "physical_properties": [ { "quantity": "number of faces", "typical_range": "4 upward", "unit": "faces", "note": "a tetrahedron has 4, a round brilliant cut has 57 or 58 facets" }, { "quantity": "angle between faces", "typical_range": "0-180", "unit": "degrees", "note": "crown and pavilion angles set the optics of a gem" } ], "families_and_kinds": [ "geometric: faces of polyhedra, by polygon type", "crystal faces: natural faces of a mineral crystal", "gem facets: table, crown, girdle, pavilion, culet", "machined faces: faces of a milled or ground part" ], "related_models": [ { "relation": "is part of", "target": "polyhedron or solid", "why": "faces, edges and vertices together define it" }, { "relation": "is confused with", "target": "human face", "why": "a homonym; this entry is the geometric surface" }, { "relation": "is described by", "target": "Euler characteristic", "why": "faces, edges and vertices satisfy V - E + F = 2 for convex polyhedra" }, { "relation": "determines", "target": "optical performance of a gem", "why": "facet angles govern brilliance and dispersion" } ], "identifiers": [], "standards_and_regulation": [ "Gem grading conventions for cut, such as those of major gemmological laboratories", "Crystallographic notation such as Miller indices for crystal faces" ], "failure_modes_and_hazards": [ "Counting facets inconsistently, which gives different numbers for the same cut", "Confusing the geometric face with the human face in text", "Poorly angled facets that leak light and reduce value" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "geometry", "name": "Geometry", "description": "Shape, count and position.", "rationale": "A face is defined by its shape and by its place among the other faces of a solid.", "layers": [ { "id": "shape", "name": "Shape of the face", "description": "The polygon or outline.", "findings": [ { "id": "shape-finding", "name": "Face shape", "description": "The outline and dimensions.", "questions": [ { "text": "What shape is this face, and what are its dimensions?", "kind": "measurement" }, { "text": "Is it genuinely flat, and within what tolerance?", "kind": "measurement" } ] } ] }, { "id": "position", "name": "Position in the solid", "description": "Where it sits and what it meets.", "findings": [ { "id": "position-finding", "name": "Position and neighbours", "description": "Which faces and edges it shares.", "questions": [ { "text": "Which faces does this face meet, and at what angles?", "kind": "measurement" }, { "text": "How is its position named in this solid or cut?", "kind": "definition" } ] } ] } ] }, { "id": "crystals-and-gems", "name": "Crystals and gems", "description": "Faces in minerals and cut stones.", "rationale": "In mineralogy and gem trading, faces carry identification and value.", "layers": [ { "id": "crystal", "name": "Crystal faces", "description": "Natural faces and their notation.", "findings": [ { "id": "crystal-finding", "name": "Crystal face notation", "description": "The indices and habit.", "questions": [ { "text": "Which crystal face is this, in Miller indices?", "kind": "definition" }, { "text": "What does the habit of faces say about the mineral?", "kind": "definition" } ] } ] }, { "id": "facet", "name": "Gem facets", "description": "Cut facets and their names.", "findings": [ { "id": "facet-finding", "name": "Facet layout", "description": "The facet names, count and angles of the cut.", "questions": [ { "text": "Which cut is this, and how many facets does it have?", "kind": "measurement" }, { "text": "Are the facet angles within the proportions for good optical performance?", "kind": "measurement" } ] } ] } ] }, { "id": "making", "name": "Making faces", "description": "Cutting, grinding and polishing.", "rationale": "Faces on made objects are produced by processes whose precision decides quality.", "layers": [ { "id": "process", "name": "Process", "description": "How the face is produced.", "findings": [ { "id": "process-finding", "name": "Production method", "description": "The cutting or machining process used.", "questions": [ { "text": "How was this face produced, and to what tolerance?", "kind": "measurement" }, { "text": "What surface finish does the process leave?", "kind": "measurement" } ] } ] }, { "id": "defects", "name": "Defects", "description": "Chips, scratches and misalignment.", "findings": [ { "id": "defects-finding", "name": "Defects found", "description": "Defects and their effect.", "questions": [ { "text": "Which defects are present on this face?", "kind": "measurement" }, { "text": "What do they do to function or value?", "kind": "boundary" } ] } ] } ] }, { "id": "counting-and-naming", "name": "Counting and naming", "description": "Conventions that make counts comparable.", "rationale": "Different conventions count the same object differently, so the convention is part of the fact.", "layers": [ { "id": "convention", "name": "Counting convention", "description": "What counts as a face.", "findings": [ { "id": "convention-finding", "name": "Convention used", "description": "The rule for counting and naming.", "questions": [ { "text": "Which convention was used to count the faces here?", "kind": "provenance" }, { "text": "Does it count the culet or girdle facets?", "kind": "boundary" } ] } ] }, { "id": "euler", "name": "Consistency checks", "description": "Checking counts against topology.", "findings": [ { "id": "euler-finding", "name": "Topological check", "description": "Whether counts of faces, edges and vertices agree.", "questions": [ { "text": "Do the counts of faces, edges and vertices satisfy the expected relation?", "kind": "measurement" }, { "text": "What does a mismatch indicate?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should geometric faces, crystal faces and gem facets be separate entries?", "How should naming conventions for facets be recorded when they differ between traditions?", "Should Miller indices be modelled as an identifier for crystal faces?" ], "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 face, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent reason about faces as countable, measurable parts of a solid, in geometry and in cut objects such as gems and crystals.", "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: facet, culet, bezel, 4-face, 11-face, 12-face, 13-face, 7-face, 8-face, 9-face, 10-face, 5-face.", "15 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 37 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 face, 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": [ { "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": [ "facet", "culet", "bezel", "4-face", "11-face", "12-face", "13-face", "7-face", "8-face", "9-face", "10-face", "5-face" ] } ], "standing": "Described in 37 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 15 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 face from another, and a face 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 face, 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 face, 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 face 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 face, 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 face, 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 face 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 face 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 face, 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 face, 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 face 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 face from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a face, 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 face, 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 face 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 face 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 face between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a face, 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 face, 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 face 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 face, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a face 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 face, 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 face, 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 face 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 face 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 face 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 face 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 face 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 face?", "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 face?", "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 face 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 face and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a face, 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 face, 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 face 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 face is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a face, 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 face, 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 face 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 } } } }