{ "model": { "rank": 12155, "code": "thing-q465978", "model_id": "vr.tr.extreme-metal", "name": "extreme metal", "purpose": "Let an agent explain extreme metal and its subgenres, relay history, musical traits and scenes from music scholarship and journalism with attribution, describe the subgenres the registry aliases name, and distinguish extreme metal from heavy metal in general and from hardcore punk, presenting controversies neutrally.", "family": "Thing Registry", "category": "Information and virtual systems", "status": "research-draft", "kind": "thing", "plane": "INF", "domain": "INF.MED", "industry": "", "version": "", "url": "/models/thing/q465978/", "tier": 2, "score": 40, "payload": { "layer": "wikidata", "aliases": [ "pagan metal", "Slavic pagan metal", "atmospheric sludge metal", "dark metal", "argent metal", "horror metal", "ultra metal", "biker metal", "sludge metal", "NOLA sludge" ], "aliasCount": 10, "merged": 10, "knownIn": 40, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q465978", "url": "https://www.wikidata.org/wiki/Q465978", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T14:33:26Z", "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-Q465978", "registryId": "vr.tr.extreme-metal", "name": "extreme metal", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "INF.MED" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q465978/", "model": { "registry_id": "vr.tr.extreme-metal", "name": "extreme metal", "purpose": "Let an agent explain extreme metal and its subgenres, relay history, musical traits and scenes from music scholarship and journalism with attribution, describe the subgenres the registry aliases name, and distinguish extreme metal from heavy metal in general and from hardcore punk, presenting controversies neutrally.", "definition": "An umbrella term for the more aggressive and transgressive subgenres of heavy metal, including thrash, death, black and doom metal and their offshoots such as atmospheric sludge, dark metal and horror metal, and folk-influenced forms such as pagan metal and its Slavic variants; extreme metal is defined by speed, distortion, harsh vocals and dark themes, and some scenes have faced controversy over extremist associations that the model reports with attribution.", "what_it_is_for": "Not applicable; a music genre group.", "affordances": [ "explain subgenres", "relay history and traits", "describe scenes", "distinguish related genres" ], "distinguishing_features": [ "Speed and distortion", "Harsh vocals", "Transgressive themes", "Global underground" ], "appearance": "Not a visible object; music.", "visual_identification": [ "Aggressive heavy metal subgenres", "Thrash, death, black, doom; atmospheric sludge, dark metal, horror metal, pagan metal, Slavic pagan metal", "Traditional heavy metal is less extreme; hardcore punk is a separate lineage" ], "physical_properties": [ { "quantity": "term popularised", "typical_range": "1980s", "unit": "period", "note": "" }, { "quantity": "key early bands", "typical_range": "Venom, Slayer, Death, Bathory", "unit": "list", "note": "" }, { "quantity": "Norwegian black metal scene", "typical_range": "early 1990s", "unit": "period", "note": "" } ], "families_and_kinds": [ "thrash metal", "death metal", "black metal", "doom and sludge metal including atmospheric sludge", "pagan, folk and Slavic pagan metal", "crossover and niche labels such as dark metal, horror metal and argent metal" ], "related_models": [ { "relation": "is a kind of", "target": "metal music", "why": "in registry terms" }, { "relation": "is exemplified by", "target": "death metal", "why": "a core subgenre" }, { "relation": "is contrasted with", "target": "traditional heavy metal", "why": "less extreme" }, { "relation": "overlaps with", "target": "hardcore punk", "why": "in crossover styles" } ], "identifiers": [], "standards_and_regulation": [ "No regulation; content laws affecting some releases in some countries" ], "failure_modes_and_hazards": [ "Partisan framing of controversies", "Registry aliases naming obscure or promotional labels", "Conflating genres with extremist politics" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What extreme metal is.", "rationale": "Definition.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is extreme metal, and how does it differ from heavy metal in general and from hardcore punk?", "kind": "definition" }, { "text": "Is the question about the umbrella term, a subgenre, a scene or a controversy?", "kind": "boundary" } ] } ] }, { "id": "subgenres", "name": "Subgenres", "description": "Subgenres.", "findings": [ { "id": "subgenres-finding", "name": "Subgenres", "description": "Subgenres.", "questions": [ { "text": "What are thrash, death, black, doom, atmospheric sludge, dark, horror and pagan metal?", "kind": "definition" }, { "text": "Which entry fits the specific subgenre?", "kind": "action" } ] } ] } ] }, { "id": "music", "name": "Music", "description": "Musical traits.", "rationale": "Sources.", "layers": [ { "id": "traits", "name": "Traits", "description": "Traits.", "findings": [ { "id": "traits-finding", "name": "Traits", "description": "Traits.", "questions": [ { "text": "What musical techniques define extreme metal, from blast beats to tremolo picking and growls?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "production", "name": "Production", "description": "Production and aesthetics.", "findings": [ { "id": "production-finding", "name": "Production", "description": "Production.", "questions": [ { "text": "How do production, artwork and imagery shape the genres?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "history", "name": "History", "description": "History and scenes.", "rationale": "Attribution.", "layers": [ { "id": "origins", "name": "Origins", "description": "Origins.", "findings": [ { "id": "origins-finding", "name": "Origins", "description": "Origins.", "questions": [ { "text": "How did extreme metal emerge in the 1980s and diversify, as historians describe?", "kind": "provenance" }, { "text": "Which entry fits the history of heavy metal?", "kind": "action" } ] } ] }, { "id": "controversies", "name": "Controversies", "description": "Controversies.", "findings": [ { "id": "controversies-finding", "name": "Controversies", "description": "Controversies.", "questions": [ { "text": "What controversies have surrounded some scenes, including crimes and extremist associations in parts of black and pagan metal, with positions attributed?", "kind": "provenance" }, { "text": "Is the presentation neutral and attributed?", "kind": "boundary" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Culture and study.", "rationale": "Context.", "layers": [ { "id": "culture", "name": "Culture", "description": "Fan culture.", "findings": [ { "id": "culture-finding", "name": "Culture", "description": "Culture.", "questions": [ { "text": "How do festivals, labels and fan communities sustain extreme metal worldwide?", "kind": "provenance" }, { "text": "Which entry fits heavy metal subculture?", "kind": "action" } ] } ] }, { "id": "study", "name": "Study", "description": "Scholarship.", "findings": [ { "id": "study-finding", "name": "Study", "description": "Study.", "questions": [ { "text": "How do metal studies scholars analyse extreme metal?", "kind": "provenance" }, { "text": "Which entry fits metal studies?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should black metal, death metal and pagan metal be separate primary entries?", "How should music scholarship be linked?", "The registry entry has merged aliases naming niche and possibly promotional labels such as argent metal; should they be reviewed?" ], "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 extreme metal, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain extreme metal and its subgenres, relay history, musical traits and scenes from music scholarship and journalism with attribution, describe the subgenres the registry aliases name, and distinguish extreme metal from heavy metal in general and from hardcore punk, presenting controversies neutrally.", "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: pagan metal, Slavic pagan metal, atmospheric sludge metal, dark metal, argent metal, horror metal, ultra metal, biker metal, sludge metal, NOLA sludge.", "10 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 40 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 extreme 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": [ "pagan metal", "Slavic pagan metal", "atmospheric sludge metal", "dark metal", "argent metal", "horror metal", "ultra metal", "biker metal", "sludge metal", "NOLA sludge" ] } ], "standing": "Described in 40 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 10 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 extreme metal from another, and a extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme metal from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a extreme 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 extreme 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 extreme 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 extreme 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 extreme metal between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a extreme 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 extreme 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 extreme 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 extreme metal, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme metal contains and in what form it is held.", "questions": [ { "id": "content-and-format-q01", "text": "What identifies and describes the content of a extreme 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 extreme 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 extreme 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 extreme metal and the period it survives.", "questions": [ { "id": "access-rules-q01", "text": "What identifies and describes access to a extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme 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 extreme metal and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a extreme 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 extreme 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 extreme 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 extreme metal is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a extreme 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 extreme 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 extreme 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 } } } }