{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T19:52:27Z", "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": 2, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-05T19:00:00Z", "ingestedAt": "2026-10-05T20:47:28+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "revisions": [ { "at": "2026-10-07T11:37:56+00:00", "engine": "codex", "fields": [ "agent_conduct" ], "answering_review": "a18070ae98a2f14a9ffc6bab8bae10ce6aab943c6c5a29ec245f803c3e9c2fe6" }, { "at": "2026-10-08T18:50:54+00:00", "engine": "codex", "fields": [ "definition", "distinguishing_features", "visual_identification" ], "answering_review": "5dcf1c71f8dd6c4f03a7b166d161d03f042089962f71581d2090010f41cdec7e" } ], "gate": { "passed": true, "version": "1.0", "at": "2026-10-08T18:54:40+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q6607", "registryId": "vr.tr.guitar", "name": "guitar", "version": "0.2.0-wave.2", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q6607/", "model": { "registry_id": "vr.tr.guitar", "name": "guitar", "purpose": "Let an agent identify guitar types and relatives, support learning and buying, explain tuning and maintenance, and describe guitar traditions with attribution.", "definition": "A fretted, plucked string instrument with a neck and a body whose back may be flat, arched or bowl-shaped, usually with six strings, in acoustic and electric forms and many regional relatives such as the charango, the Mexican twelve-string, baritone and soprano guitars; the guitar is among the most widely played instruments in folk, classical, popular and world music.", "what_it_is_for": "Music making across genres.", "affordances": [ "identify guitar types and regional relatives", "support learning to play", "advise on buying and maintenance", "describe guitar traditions" ], "distinguishing_features": [ "The guitar is a fretted, plucked lute.", "The body may have a flat, arched or bowl-shaped back.", "Guitars have acoustic or electric forms.", "The guitar is popular globally." ], "appearance": "A flat-backed body with a fretted neck and strings.", "visual_identification": [ "Guitars usually have six strings and a fretted neck.", "Guitars may have an acoustic body or a solid electric body.", "Back shape alone does not distinguish guitars from other lutes, while banjos have drum heads." ], "physical_properties": [ { "quantity": "Overall length", "unit": "cm", "typical_range": "", "note": "Measure from the end of the body to the tip of the headstock, accounting for the instrument type." }, { "quantity": "Scale length", "unit": "mm", "typical_range": "", "note": "Measure the nominal vibrating string length between the nut and bridge, allowing for saddle compensation." }, { "quantity": "Instrument mass", "unit": "kg", "typical_range": "", "note": "Weigh the instrument without its case or detachable accessories." } ], "families_and_kinds": [ "classical and flamenco guitars", "steel-string acoustic guitars", "electric guitars", "bass, baritone and extended-range guitars", "regional relatives such as charango and requinto" ], "related_models": [ { "relation": "is a kind of", "target": "necked, flat-backed, plucked lute", "why": "category" }, { "relation": "is played in", "target": "performing arts", "why": "context" }, { "relation": "is related to", "target": "percussion instrument", "why": "other instrument family" }, { "relation": "is related to", "target": "tonic", "why": "harmony and keys" } ], "identifiers": [], "standards_and_regulation": [ "CITES rules on tonewoods such as rosewood", "Product safety for electric instruments" ], "failure_modes_and_hazards": [ "Restricted woods in trade and travel", "Playing injuries", "Counterfeit instruments" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Help a player tune, practise or learn a guitar, and describe guitar types and history.", "Report the condition of a guitar to its owner, such as cracks, neck warp or worn frets." ], "must_not": [ "Sell or describe a guitar as vintage, handmade or by a famous maker when that is not proven.", "Ignore restrictions on protected tonewoods when trading instruments across borders.", "Play amplified guitar at volumes that damage hearing in people nearby, regardless of their agreement." ], "requires_human": [ "Selling, lending or modifying a valuable or historic instrument requires human authorization." ] }, "ethics": { "considerations": [ "Instruments are often treasured personal and cultural objects; provenance claims affect their value.", "Some traditional woods come from endangered trees." ], "affected_parties": [ "Players and owners", "Buyers of instruments", "Communities with regional guitar traditions" ] }, "owners": { "steward": "The person who owns it.", "master_systems": [] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q6607: guitar", "url": "https://www.wikidata.org/wiki/Q6607", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Guitar", "url": "https://en.wikipedia.org/wiki/Guitar", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "identify", "name": "Identify", "description": "Which guitar.", "rationale": "Types and relatives.", "layers": [ { "id": "type", "name": "Type", "description": "Guitar type.", "findings": [ { "id": "type-finding", "name": "Type", "description": "Type.", "questions": [ { "text": "What type of guitar is this, and what music is it suited to?", "kind": "definition" }, { "text": "Is it a regional relative such as a charango?", "kind": "definition" } ] } ] }, { "id": "instrument", "name": "Instrument", "description": "A specific instrument.", "findings": [ { "id": "instrument-finding", "name": "Instrument", "description": "Specific instrument.", "questions": [ { "text": "Who made this guitar, and when, according to serial numbers and records?", "kind": "provenance" }, { "text": "Is it genuine?", "kind": "boundary" } ] } ] } ] }, { "id": "learn", "name": "Learn", "description": "Playing.", "rationale": "Practice and technique.", "layers": [ { "id": "start", "name": "Start", "description": "Beginning.", "findings": [ { "id": "start-finding", "name": "Start", "description": "Beginning.", "questions": [ { "text": "How can a beginner start learning guitar, and which instrument suits them?", "kind": "action" }, { "text": "Which chords and songs come first?", "kind": "action" } ] } ] }, { "id": "technique", "name": "Technique", "description": "Improving.", "findings": [ { "id": "technique-finding", "name": "Technique", "description": "Technique.", "questions": [ { "text": "How can this technique or style be practised?", "kind": "action" }, { "text": "How can hand strain be avoided?", "kind": "provenance" } ] } ] } ] }, { "id": "own", "name": "Own", "description": "Buying and care.", "rationale": "Setup matters.", "layers": [ { "id": "buy", "name": "Buy", "description": "Buying a guitar.", "findings": [ { "id": "buy-finding", "name": "Buy", "description": "Buying.", "questions": [ { "text": "What should a buyer check on a new or used guitar?", "kind": "action" }, { "text": "Do CITES rules affect travel with this instrument?", "kind": "provenance" } ] } ] }, { "id": "maintain", "name": "Maintain", "description": "Maintenance.", "findings": [ { "id": "maintain-finding", "name": "Maintain", "description": "Maintenance.", "questions": [ { "text": "How should the guitar be tuned, strung, stored and set up?", "kind": "provenance" }, { "text": "When is a professional setup needed?", "kind": "boundary" } ] } ] } ] }, { "id": "culture", "name": "Culture", "description": "Traditions.", "rationale": "Guitars across cultures.", "layers": [ { "id": "traditions", "name": "Traditions", "description": "Regional traditions.", "findings": [ { "id": "traditions-finding", "name": "Traditions", "description": "Traditions.", "questions": [ { "text": "What are the traditions of this guitar type, as described by its musicians?", "kind": "provenance" }, { "text": "Which players are notable?", "kind": "provenance" } ] } ] }, { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How did the guitar develop, according to organologists?", "kind": "provenance" }, { "text": "Which innovations were key?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should each guitar type be a separate entry?", "How should learning resources be linked?", "How should CITES rules be tracked?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }