{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T04:27:06Z", "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": 3, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T10:00:00Z", "ingestedAt": "2026-10-06T07:08:12+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "revisions": [ { "at": "2026-10-06T22:54:37+00:00", "engine": "codex", "fields": [ "definition" ], "answering_review": "fe7d547ec07eb0cd9d59f7369a7281d9d4495311e9d98b4a2ddeb2ac60a85f57" }, { "at": "2026-10-07T11:35:26+00:00", "engine": "codex", "fields": [ "failure_modes_and_hazards", "purpose" ], "answering_review": "196f364fd7368ca4ece6e6c47c7c9b1f5c747ee274821fb19978cd25e460293c" } ], "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T12:16:33+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q5327174", "registryId": "vr.tr.earth-structure", "name": "earth structure", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.BLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q5327174/", "model": { "registry_id": "vr.tr.earth-structure", "name": "earth structure", "purpose": "Let an agent explain earth structures and their techniques, relay properties, standards and examples from building and heritage sources, describe modern earth construction, and distinguish earth structures from fired-brick, stone and concrete construction while recognising that adobe and other earth-block construction can also be masonry.", "definition": "A structure built mainly from unfired earth, including rammed earth walls compacted in formwork, adobe of sun-dried mud bricks, cob of hand-formed earth and straw, wattle and daub, and earthen mound structures, used for housing, fortifications and monuments from ancient times to today across arid and temperate regions; earth structures have low embodied energy, good thermal mass and are regulated by modern earth building codes. Earth-sheltered buildings qualify only when the structure itself is made largely from soil, rather than merely covered with it.", "what_it_is_for": "Building with earth.", "affordances": [ "explain techniques", "relay properties and standards", "describe examples", "distinguish from masonry" ], "distinguishing_features": [ "Unfired earth material", "High thermal mass", "Low embodied energy", "Ancient and modern use" ], "appearance": "Thick earthen walls, often plastered, in warm tones.", "visual_identification": [ "Building made of unfired earth", "Rammed earth, adobe, cob, wattle and daub, compressed earth blocks, earth mounds", "Fired brick is ceramic; concrete uses cement; earth-sheltered buildings may be concrete covered with earth" ], "physical_properties": [ { "quantity": "world population living in earth buildings", "typical_range": "about one third", "unit": "share", "note": "estimates" }, { "quantity": "rammed earth wall thickness", "typical_range": "about 30-60", "unit": "cm", "note": "" }, { "quantity": "compressive strength of rammed earth", "typical_range": "about 1-3", "unit": "MPa", "note": "unstabilised" } ], "families_and_kinds": [ "rammed earth buildings", "adobe buildings", "cob buildings", "wattle and daub", "compressed earth block buildings", "earthen fortifications and monuments such as the Great Wall sections and Chan Chan", "modern stabilised earth architecture" ], "related_models": [ { "relation": "is a kind of", "target": "built structure", "why": "in registry terms" }, { "relation": "is made of", "target": "earth", "why": "as building material" }, { "relation": "includes", "target": "rammed earth", "why": "as a major technique" }, { "relation": "is protected as", "target": "World Heritage Site", "why": "at sites such as Djenne and Chan Chan" } ], "identifiers": [], "standards_and_regulation": [ "Earth building codes such as New Zealand NZS 4297 and German Lehmbau rules", "Heritage protection of earthen sites", "Seismic design rules for earth buildings" ], "failure_modes_and_hazards": [ "Water can cause erosion.", "Unreinforced earth structures can be vulnerable to earthquakes.", "Treating earth structures and masonry as mutually exclusive categories misclassifies adobe construction." ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Explain rammed earth, adobe, cob and other earth techniques in general terms.", "Inspect and report erosion, cracking or damp in an earth building the agent is authorized to survey." ], "must_not": [ "Declare an unreinforced earth building safe in a seismic zone without an engineer's assessment.", "Apply impermeable coatings or repairs that trap moisture in historic earth walls without expert advice.", "Demolish or alter a listed earth structure without consent." ], "requires_human": [ "Structural decisions on occupied earth buildings in earthquake areas." ] }, "ethics": { "considerations": [ "Many people live in earth buildings that collapse in earthquakes.", "Earth building is sustainable heritage that is often dismissed as primitive." ], "affected_parties": [ "Occupants", "Builders", "Heritage communities" ] }, "owners": { "steward": "The owner of each building; heritage authorities protect listed earth structures.", "master_systems": [ "Heritage registers", "Land registry or cadastre" ] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q5327174: earth structure", "url": "https://www.wikidata.org/wiki/Q5327174", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Earth structure", "url": "https://en.wikipedia.org/wiki/Earth_structure", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What an earth structure is.", "rationale": "Definition.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition and techniques.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is an earth structure, and how do rammed earth, adobe, cob, wattle and daub and compressed blocks differ?", "kind": "definition" }, { "text": "Is the question about earth buildings, masonry, concrete or earth-sheltered construction?", "kind": "boundary" } ] } ] }, { "id": "properties", "name": "Properties", "description": "Properties.", "findings": [ { "id": "properties-finding", "name": "Properties", "description": "Properties.", "questions": [ { "text": "What thermal, structural and environmental properties do earth walls have?", "kind": "definition" }, { "text": "Which entry fits the specific technique?", "kind": "action" } ] } ] } ] }, { "id": "build", "name": "Build", "description": "Building with earth.", "rationale": "Practice.", "layers": [ { "id": "construction", "name": "Construction", "description": "Construction.", "findings": [ { "id": "construction-finding", "name": "Construction", "description": "Construction.", "questions": [ { "text": "How are earth buildings constructed, stabilised and protected from water and earthquakes?", "kind": "action" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "codes", "name": "Codes", "description": "Codes and standards.", "findings": [ { "id": "codes-finding", "name": "Codes", "description": "Codes.", "questions": [ { "text": "What earth building codes exist, and how do they address strength and seismic safety?", "kind": "provenance" }, { "text": "Which entry fits the specific code?", "kind": "action" } ] } ] } ] }, { "id": "heritage", "name": "Heritage", "description": "Heritage and examples.", "rationale": "Sources.", "layers": [ { "id": "examples", "name": "Examples", "description": "Notable examples.", "findings": [ { "id": "examples-finding", "name": "Examples", "description": "Examples.", "questions": [ { "text": "What are notable earth structures, from Djenne and Shibam to Chan Chan and earthen sections of the Great Wall?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] }, { "id": "conservation", "name": "Conservation", "description": "Conservation.", "findings": [ { "id": "conservation-finding", "name": "Conservation", "description": "Conservation.", "questions": [ { "text": "How are earthen heritage sites conserved?", "kind": "provenance" }, { "text": "Which entry fits earthen architecture conservation?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Sustainability and history.", "rationale": "Context.", "layers": [ { "id": "sustainability", "name": "Sustainability", "description": "Modern earth architecture.", "findings": [ { "id": "sustainability-finding", "name": "Sustainability", "description": "Sustainability.", "questions": [ { "text": "How is earth construction used in sustainable architecture today, with positions attributed?", "kind": "provenance" }, { "text": "Which entry fits sustainable architecture?", "kind": "action" } ] } ] }, { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How have earth structures been built across cultures and periods?", "kind": "provenance" }, { "text": "Which entry fits vernacular architecture?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should rammed earth and adobe be separate primary entries?", "How should building codes and heritage sources be linked?", "How should the rammed earth alias be recorded?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }