{ "model": { "rank": 4894, "code": "thing-q132438", "model_id": "vr.tr.black-metal", "name": "black metal", "purpose": "Let an agent explain black metal, relay musical traits, history, subgenres and controversies from music journalism and scholarship with positions attributed, describe the named styles without amplifying extremist material, and distinguish black metal from death metal, thrash metal, doom metal and gothic rock.", "family": "Thing Registry", "category": "Information and virtual systems", "status": "research-draft", "kind": "thing", "plane": "INF", "domain": "INF.MED", "industry": "", "version": "", "url": "/models/thing/q132438/", "tier": 2, "score": 71, "payload": { "layer": "wikidata", "aliases": [ "black noise", "progressive black metal", "post-black metal", "National Socialist black metal", "Hellenic black metal", "pagan black metal", "psychedelic black metal", "melodic black metal", "viking metal", "troll metal", "symphonic black metal", "unblack metal", "black 'n' roll", "first wave black metal", "dissonant black metal", "red and anarchist black metal", "war metal", "black doom", "Norsecore", "Early Norwegian black metal scene", "blackened death metal", "raw black metal", "depressive black metal", "pop black metal", "atmospheric black metal", "ambient black metal", "true black metal", "cosmic black metal" ], "aliasCount": 28, "merged": 28, "knownIn": 71, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q132438", "url": "https://www.wikidata.org/wiki/Q132438", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T22:21:40Z", "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-Q132438", "registryId": "vr.tr.black-metal", "name": "black metal", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "INF.MED" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q132438/", "model": { "registry_id": "vr.tr.black-metal", "name": "black metal", "purpose": "Let an agent explain black metal, relay musical traits, history, subgenres and controversies from music journalism and scholarship with positions attributed, describe the named styles without amplifying extremist material, and distinguish black metal from death metal, thrash metal, doom metal and gothic rock.", "definition": "An extreme metal genre characterised by fast tempos, tremolo-picked guitars, shrieked vocals, blast beats and often lo-fi production, emerging with first-wave bands such as Venom, whose 1982 album named the genre, Bathory and Celtic Frost, and a second wave in Norway in the early 1990s with bands such as Mayhem, Darkthrone and Emperor, a scene marked by church arsons and murders for which members were convicted; later styles include post-black metal, progressive and pagan black metal, Hellenic black metal from Greece, and black noise, while National Socialist black metal names a neo-Nazi fringe that many in the scene reject. The model describes these facts neutrally, attributes characterisations and does not promote extremist content.", "what_it_is_for": "Musical genre.", "affordances": [ "explain musical traits and history", "relay subgenres", "describe controversies with attribution", "distinguish related genres" ], "distinguishing_features": [ "Tremolo picking", "Shrieked vocals", "Lo-fi aesthetics", "Controversial history" ], "appearance": "Performers in corpse paint and dark imagery; album art often in monochrome.", "visual_identification": [ "Extreme metal genre", "Black noise, progressive black metal, post-black metal, National Socialist black metal, Hellenic black metal, pagan black metal", "Death metal uses growled vocals and technical riffs; thrash is faster rock-based metal; doom is slow; gothic rock is post-punk" ], "physical_properties": [ { "quantity": "Venom album Black Metal", "typical_range": "1982", "unit": "year", "note": "genre name" }, { "quantity": "Norwegian second wave", "typical_range": "early 1990s", "unit": "note", "note": "" }, { "quantity": "registry parent", "typical_range": "extreme metal", "unit": "note", "note": "" } ], "families_and_kinds": [ "first-wave black metal", "Norwegian second wave", "symphonic black metal", "post-black metal and blackgaze", "pagan and regional scenes" ], "related_models": [ { "relation": "is a kind of", "target": "extreme metal", "why": "in registry terms" }, { "relation": "includes", "target": "post-black metal", "why": "" }, { "relation": "is contrasted with", "target": "death metal", "why": "" }, { "relation": "is related to", "target": "early Norwegian black metal scene", "why": "" } ], "identifiers": [], "standards_and_regulation": [ "Hate speech and extremist content laws for some NSBM material", "Platform content policies" ], "failure_modes_and_hazards": [ "Amplifying extremist bands", "Glorifying crimes", "Stereotyping the whole genre" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What black metal is.", "rationale": "Attribution.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is black metal, and how does it differ from death, thrash and doom metal and gothic rock?", "kind": "definition" }, { "text": "Is the question about music, history, or extremist content, which the model describes without promotion?", "kind": "boundary" } ] } ] }, { "id": "styles", "name": "Styles", "description": "Named styles.", "findings": [ { "id": "styles-finding", "name": "Styles", "description": "Styles.", "questions": [ { "text": "What are post-black, progressive, pagan and Hellenic black metal and black noise, and what is NSBM in neutral terms?", "kind": "definition" }, { "text": "Which entry fits the specific style?", "kind": "action" } ] } ] } ] }, { "id": "music", "name": "Music", "description": "Musical traits.", "rationale": "Sources.", "layers": [ { "id": "sound", "name": "Sound", "description": "Sound.", "findings": [ { "id": "sound-finding", "name": "Sound", "description": "Sound.", "questions": [ { "text": "How do tremolo picking, blast beats and production create the black metal sound?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "evolution", "name": "Evolution", "description": "Evolution.", "findings": [ { "id": "evolution-finding", "name": "Evolution", "description": "Evolution.", "questions": [ { "text": "How did post-black metal and blackgaze broaden the genre?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "history", "name": "History", "description": "History.", "rationale": "Attribution.", "layers": [ { "id": "norway", "name": "Norway", "description": "Norwegian scene.", "findings": [ { "id": "norway-finding", "name": "Norway", "description": "Norway.", "questions": [ { "text": "What happened in the early Norwegian scene, including church arsons and convictions, as documented?", "kind": "provenance" }, { "text": "Which entry fits early Norwegian black metal scene?", "kind": "action" } ] } ] }, { "id": "extremism", "name": "Extremism", "description": "Extremism debates.", "findings": [ { "id": "extremism-finding", "name": "Extremism", "description": "Extremism.", "questions": [ { "text": "How do scholars and musicians describe the NSBM fringe and opposition to it, with positions attributed?", "kind": "provenance" }, { "text": "Is the presentation neutral and free of promotion?", "kind": "boundary" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Culture.", "rationale": "Context.", "layers": [ { "id": "imagery", "name": "Imagery", "description": "Imagery.", "findings": [ { "id": "imagery-finding", "name": "Imagery", "description": "Imagery.", "questions": [ { "text": "What is corpse paint, and what does black metal imagery draw on?", "kind": "provenance" }, { "text": "Which entry fits corpse paint?", "kind": "action" } ] } ] }, { "id": "scholarship", "name": "Scholarship", "description": "Scholarship.", "findings": [ { "id": "scholarship-finding", "name": "Scholarship", "description": "Scholarship.", "questions": [ { "text": "How has black metal been studied in metal studies scholarship?", "kind": "provenance" }, { "text": "Which entry fits metal studies?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should National Socialist black metal be treated in a separate entry with extremism context?", "How should music scholarship be linked?", "Should regional scenes be separate entries?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "work, medium or creative form", "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 black metal, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain black metal, relay musical traits, history, subgenres and controversies from music journalism and scholarship with positions attributed, describe the named styles without amplifying extremist material, and distinguish black metal from death metal, thrash metal, doom metal and gothic rock.", "characteristics": { "substance": "information", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "read and interpreted", "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: black noise, progressive black metal, post-black metal, National Socialist black metal, Hellenic black metal, pagan black metal, psychedelic black metal, melodic black metal, viking metal, troll metal, symphonic black metal, unblack metal.", "28 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 71 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 black metal, and on what evidence are they told apart?" ], "whatItIsMadeOf": "content that has to be carried by something else", "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": [ "read it and act on what it says", "observe it, measure it, record its state" ], "howItIsRecognised": [ "What is seen is a copy or a performance, not the work. Recognising the work means recognising the content through whatever is carrying 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": [ "black noise", "progressive black metal", "post-black metal", "National Socialist black metal", "Hellenic black metal", "pagan black metal", "psychedelic black metal", "melodic black metal", "viking metal", "troll metal", "symphonic black metal", "unblack metal" ] } ], "standing": "Described in 71 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 28 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 black metal from another, and a black metal 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 black metal, 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 black metal, 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 black metal 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 black metal, 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 black metal, 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 black metal 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 black metal 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 black metal, 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 black metal, 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 black metal 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 black metal from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a black metal, 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 black metal, 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 black metal 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 black metal 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 black metal between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a black metal, 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 black metal, 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 black metal 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 black metal, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a black metal 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 black metal, 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 black metal, 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 black metal is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "content-and-access", "name": "Content, encoding and access", "description": "What a black metal says, how it is encoded and who may read it.", "rationale": "An informational thing carries content that can be copied, versioned and withheld, none of which its physical carrier explains.", "layers": [ { "id": "content-and-encoding", "name": "Content and encoding", "description": "The content itself, its format and its language.", "findings": [ { "id": "content-and-format", "name": "Content, format and language", "description": "What a black metal contains and in what form it is held.", "questions": [ { "id": "content-and-format-q01", "text": "What identifies and describes the content of a black metal, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "content-and-format-q02", "text": "Who or what asserted this about the content of a black metal, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "content-and-format-q03", "text": "What may an agent decide or do once the content of a black metal is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "access-and-rights", "name": "Access, rights and retention", "description": "Who may read, copy or change it, and for how long it is kept.", "findings": [ { "id": "access-rules", "name": "Access rules and retention", "description": "The permissions attached to a black metal and the period it survives.", "questions": [ { "id": "access-rules-q01", "text": "What identifies and describes access to a black metal, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "access-rules-q02", "text": "Who or what asserted this about access to a black metal, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "access-rules-q03", "text": "What may an agent decide or do once access to a black metal is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "work-and-manifestation", "name": "Work, version and copy", "description": "Which level of black metal a statement is about.", "rationale": "The work, the edition, the file and the copy in hand are four things; rights and content attach to different ones.", "layers": [ { "id": "levels", "name": "Levels of the thing", "description": "Work, expression, manifestation and item, in plain terms.", "findings": [ { "id": "level-rules", "name": "What belongs at each level", "description": "Which facts hold for the work and which only for one copy.", "questions": [ { "id": "level-rules-q01", "text": "For black metal, which facts belong to the work itself, which to a version, and which to a single copy?", "kind": "boundary" }, { "id": "level-rules-q02", "text": "What identifier exists at each level, and which one is being cited?", "kind": "definition" } ] } ] }, { "id": "versions", "name": "Versions, editions and variants", "description": "How versions differ and which is canonical to whom.", "findings": [ { "id": "version-record", "name": "Versions and canonicity", "description": "Differences that matter and who calls one authoritative.", "questions": [ { "id": "version-record-q01", "text": "Which versions or editions of black metal exist, and how do they differ substantively?", "kind": "definition" }, { "id": "version-record-q02", "text": "Who treats which version as authoritative, and for what purpose?", "kind": "provenance" } ] } ] } ] }, { "id": "authorship-and-rights", "name": "Authorship, rights and permitted use", "description": "Who made black metal and what may be done with it.", "rationale": "Rights are jurisdictional, time-limited and attached to a level, and an agent that ignores that will copy what it may not.", "layers": [ { "id": "authorship", "name": "Authorship and contribution", "description": "Who contributed what, and in what capacity.", "findings": [ { "id": "contribution-record", "name": "Contributors and roles", "description": "The people and bodies behind it, with their roles.", "questions": [ { "id": "contribution-record-q01", "text": "Who authored or contributed to black metal, in what roles, and how is that attested?", "kind": "provenance" }, { "id": "contribution-record-q02", "text": "Where authorship is disputed or anonymous, what is recorded instead?", "kind": "boundary" } ] } ] }, { "id": "rights", "name": "Rights and permissions", "description": "Which rights subsist, where, until when, and what they permit.", "findings": [ { "id": "rights-record", "name": "Rights, term and permitted acts", "description": "The regime in force and what it allows.", "questions": [ { "id": "rights-record-q01", "text": "What rights subsist in black metal, in which jurisdictions, and until when?", "kind": "definition" }, { "id": "rights-record-q02", "text": "Which acts are permitted without further permission, and which must an agent refuse?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a black metal 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 black metal and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a black metal, 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 black metal, 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 black metal 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 black metal is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a black metal, 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 black metal, 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 black metal is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 12, "findings": 14, "questions": 38 } } } }