{ "model": { "rank": 4225, "code": "thing-q5967009", "model_id": "vr.tr.indigo", "name": "indigo", "purpose": "Let an agent explain indigo, relay the colour, the natural and synthetic dye, its use in denim and its place in the spectrum from colour science, textile and history sources with debates attributed, describe the named shades, and distinguish indigo from blue generally, violet, woad and the plant genus Indigofera.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QLT", "industry": "", "version": "", "url": "/models/thing/q5967009/", "tier": 2, "score": 77, "payload": { "layer": "wikidata", "aliases": [ "Persian Indigo", "dark indigo", "intense blue" ], "aliasCount": 3, "merged": 3, "knownIn": 77, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.indigo", "source": { "dataset": "wikidata", "item": "Q5967009", "url": "https://www.wikidata.org/wiki/Q5967009", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-14T02:43:54Z", "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-Q5967009", "registryId": "vr.tr.indigo", "name": "indigo", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q5967009/", "model": { "registry_id": "vr.tr.indigo", "name": "indigo", "purpose": "Let an agent explain indigo, relay the colour, the natural and synthetic dye, its use in denim and its place in the spectrum from colour science, textile and history sources with debates attributed, describe the named shades, and distinguish indigo from blue generally, violet, woad and the plant genus Indigofera.", "definition": "A deep blue-violet colour and the natural dye that produces it, historically extracted from plants of the genus Indigofera and from woad, and now made mainly as synthetic indigo, most famously used to dye denim blue; the registry aliases name shades such as Persian, dark and intense indigo. Indigo is also named as one of the seven colours Newton listed in the rainbow, a choice later debated, and it has cultural significance in many textile traditions. Natural indigo dyeing and synthetic production have distinct environmental and labour considerations, discussed with attribution.", "what_it_is_for": "A blue-violet colour and textile dye.", "affordances": [ "explain the colour and dye", "relay natural and synthetic production", "relay use in denim and the spectrum", "distinguish related colours and sources" ], "distinguishing_features": [ "Blue-violet hue", "Natural and synthetic dye", "Denim colour", "Rainbow colour" ], "appearance": "A deep blue with a violet tint, as on dyed denim.", "visual_identification": [ "Deep blue-violet colour and dye", "Persian Indigo, dark indigo, intense blue", "Blue is the broader colour; violet is redder; woad is another indigo source; Indigofera is the plant genus" ], "physical_properties": [ { "quantity": "main plant source", "typical_range": "Indigofera", "unit": "note", "note": "" }, { "quantity": "synthetic indigo", "typical_range": "from 1897", "unit": "note", "note": "BASF, as reported" }, { "quantity": "registry parent", "typical_range": "blue", "unit": "note", "note": "" } ], "families_and_kinds": [ "natural plant indigo", "woad indigo", "synthetic indigo", "indigo shades" ], "related_models": [ { "relation": "is a kind of", "target": "blue", "why": "in registry terms" }, { "relation": "is derived from", "target": "Indigofera", "why": "" }, { "relation": "is used for", "target": "denim", "why": "" }, { "relation": "is contrasted with", "target": "violet", "why": "" } ], "identifiers": [], "standards_and_regulation": [ "Textile dye and chemical safety rules", "Environmental rules for dyeing effluent" ], "failure_modes_and_hazards": [ "Dyeing effluent pollution", "Confusing indigo, blue and violet", "Labour issues in some dye production" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What indigo is.", "rationale": "Definition.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is indigo, and how does it differ from blue generally, violet, woad and the plant genus Indigofera?", "kind": "definition" }, { "text": "Is the question about the colour, the dye or the plant?", "kind": "boundary" } ] } ] }, { "id": "shades", "name": "Shades", "description": "Named shades.", "findings": [ { "id": "shades-finding", "name": "Shades", "description": "Shades.", "questions": [ { "text": "What are Persian, dark and intense indigo?", "kind": "definition" }, { "text": "Which entry fits the specific shade?", "kind": "action" } ] } ] } ] }, { "id": "dye", "name": "Dye", "description": "Dye.", "rationale": "Sources.", "layers": [ { "id": "natural", "name": "Natural", "description": "Natural indigo.", "findings": [ { "id": "natural-finding", "name": "Natural", "description": "Natural.", "questions": [ { "text": "How is natural indigo extracted from plants and woad?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "synthetic", "name": "Synthetic", "description": "Synthetic indigo.", "findings": [ { "id": "synthetic-finding", "name": "Synthetic", "description": "Synthetic.", "questions": [ { "text": "How did synthetic indigo replace most natural dye?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "use", "name": "Use", "description": "Uses.", "rationale": "Sources.", "layers": [ { "id": "denim", "name": "Denim", "description": "Denim.", "findings": [ { "id": "denim-finding", "name": "Denim", "description": "Denim.", "questions": [ { "text": "Why is indigo the classic denim dye?", "kind": "provenance" }, { "text": "Which entry fits denim?", "kind": "action" } ] } ] }, { "id": "culture", "name": "Culture", "description": "Textile traditions.", "findings": [ { "id": "culture-finding", "name": "Culture", "description": "Culture.", "questions": [ { "text": "How is indigo used in textile traditions worldwide?", "kind": "provenance" }, { "text": "Is the information accurate?", "kind": "boundary" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Colour and impact.", "rationale": "Attribution.", "layers": [ { "id": "rainbow", "name": "Rainbow", "description": "Rainbow colour.", "findings": [ { "id": "rainbow-finding", "name": "Rainbow", "description": "Rainbow.", "questions": [ { "text": "Why did Newton list indigo in the rainbow, and why is it debated, with views attributed?", "kind": "provenance" }, { "text": "Is the presentation neutral and attributed?", "kind": "boundary" } ] } ] }, { "id": "environment", "name": "Environment", "description": "Environmental impact.", "findings": [ { "id": "environment-finding", "name": "Environment", "description": "Environment.", "questions": [ { "text": "What environmental and labour issues affect indigo dyeing, with positions attributed?", "kind": "provenance" }, { "text": "Is the information current?", "kind": "boundary" } ] } ] } ] } ] }, "openQuestions": [ "Should the plant genus Indigofera be a separate entry?", "How should natural versus synthetic indigo be documented?", "How should the rainbow-colour debate be presented?" ], "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 indigo, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain indigo, relay the colour, the natural and synthetic dye, its use in denim and its place in the spectrum from colour science, textile and history sources with debates attributed, describe the named shades, and distinguish indigo from blue generally, violet, woad and the plant genus Indigofera.", "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: Persian Indigo, dark indigo, intense blue.", "3 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 77 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 indigo, 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": [ "Persian Indigo", "dark indigo", "intense blue" ] } ], "standing": "Described in 77 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 3 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 indigo from another, and a indigo 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 indigo, 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 indigo, 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 indigo 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 indigo, 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 indigo, 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 indigo 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 indigo 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 indigo, 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 indigo, 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 indigo 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 indigo from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a indigo, 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 indigo, 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 indigo 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 indigo 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 indigo between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a indigo, 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 indigo, 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 indigo 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 indigo, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a indigo 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 indigo, 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 indigo, 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 indigo 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 indigo 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 indigo 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 indigo 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 indigo 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 indigo?", "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 indigo?", "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 indigo 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 indigo and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a indigo, 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 indigo, 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 indigo 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 indigo is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a indigo, 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 indigo, 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 indigo 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 } } } }