{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T06:37:35Z",
    "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": 1,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T16:30:00Z",
      "ingestedAt": "2026-10-05T13:22:52+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "revisions": [
      {
        "at": "2026-10-08T18:46:33+00:00",
        "engine": "codex",
        "fields": [
          "definition",
          "distinguishing_features"
        ],
        "answering_review": "c379d0f3b4f3126ff6476b5743ad48e47eeef656fac58a07f115a0df84788362"
      }
    ],
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-08T18:54:35+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q12277",
    "registryId": "vr.tr.arch",
    "name": "arch",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.BLT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q12277/",
  "model": {
    "registry_id": "vr.tr.arch",
    "name": "arch",
    "purpose": "Let an agent handle arches by form, material, structural behaviour, condition and heritage.",
    "definition": "An arch is a structure spanning a space in a vertical plane, typically with a curved profile, that may or may not support a load above it, in forms such as round, pointed, flat and diaphragm arches, built of stone, brick, wood or iron.",
    "what_it_is_for": "Spanning openings and carrying loads in buildings and bridges, and as monuments.",
    "affordances": [
      "design and build it",
      "assess its stability",
      "repair and conserve it",
      "identify its style"
    ],
    "distinguishing_features": [
      "Structural arches carry loads mainly in compression.",
      "Structural arches require supports capable of resisting their thrust.",
      "Arch forms help define architectural styles.",
      "Freestanding arches can serve as monuments."
    ],
    "appearance": "A curved span over an opening; triumphal arches and whalebone arches are freestanding forms.",
    "visual_identification": [
      "Curved span with springings and keystone",
      "Forms such as pointed or round",
      "Materials from stone to iron"
    ],
    "physical_properties": [
      {
        "quantity": "span",
        "typical_range": "0.5-500+",
        "unit": "m",
        "note": "masonry to steel bridge arches"
      }
    ],
    "families_and_kinds": [
      "round and segmental arches",
      "pointed arches",
      "flat arches",
      "diaphragm arches",
      "triumphal and memorial arches"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "architectural element",
        "why": "element"
      },
      {
        "relation": "is part of",
        "target": "bridge and building",
        "why": "use"
      },
      {
        "relation": "carries",
        "target": "load",
        "why": "structure"
      },
      {
        "relation": "is protected as",
        "target": "heritage",
        "why": "listing"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "Masonry assessment codes",
      "Heritage protection law"
    ],
    "failure_modes_and_hazards": [
      "Collapse from abutment movement",
      "Keystone or mortar failure",
      "Vehicle strikes"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Inspect and report the condition of an arch, such as cracks or displaced stones.",
        "Describe an arch and its form from drawings and records."
      ],
      "must_not": [
        "Remove or cut into an arch or the walls that restrain it without a structural assessment.",
        "Load an arch beyond what its owner or engineer has approved.",
        "Damage historic arches or carved stonework."
      ],
      "requires_human": [
        "Altering, repairing or demolishing an arch in an occupied or listed structure."
      ]
    },
    "ethics": {
      "considerations": [
        "A failing arch can bring down what it supports onto people.",
        "Historic arches carry the craft and identity of places."
      ],
      "affected_parties": [
        "Occupants and passers-by",
        "Owners of the structure",
        "Heritage communities"
      ]
    },
    "owners": {
      "steward": "The owner of the structure; heritage authorities protect listed arches.",
      "master_systems": [
        "Heritage registers where listed"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q12277: arch",
      "url": "https://www.wikidata.org/wiki/Q12277",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Arch",
      "url": "https://en.wikipedia.org/wiki/Arch",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "form",
        "name": "Form",
        "description": "Shape and style.",
        "rationale": "Form defines behaviour and style.",
        "layers": [
          {
            "id": "shape",
            "name": "Shape",
            "description": "Round, pointed.",
            "findings": [
              {
                "id": "shape-finding",
                "name": "Shape",
                "description": "Arch form.",
                "questions": [
                  {
                    "text": "What form is the arch?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which style does it indicate?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "material",
            "name": "Material",
            "description": "Stone, brick, iron.",
            "findings": [
              {
                "id": "material-finding",
                "name": "Material",
                "description": "Material.",
                "questions": [
                  {
                    "text": "What is it built of?",
                    "kind": "definition"
                  },
                  {
                    "text": "When was it built?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "structure",
        "name": "Structure",
        "description": "How it works.",
        "rationale": "Arches rely on thrust and abutments.",
        "layers": [
          {
            "id": "behaviour",
            "name": "Behaviour",
            "description": "Compression and thrust.",
            "findings": [
              {
                "id": "behaviour-finding",
                "name": "Behaviour",
                "description": "Structural behaviour.",
                "questions": [
                  {
                    "text": "How does the arch carry load?",
                    "kind": "definition"
                  },
                  {
                    "text": "What resists its thrust?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "capacity",
            "name": "Capacity",
            "description": "Assessment.",
            "findings": [
              {
                "id": "capacity-finding",
                "name": "Capacity",
                "description": "Assessed capacity.",
                "questions": [
                  {
                    "text": "What load can it carry?",
                    "kind": "measurement"
                  },
                  {
                    "text": "How was it assessed?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "condition",
        "name": "Condition",
        "description": "State and repair.",
        "rationale": "Condition affects safety.",
        "layers": [
          {
            "id": "defects",
            "name": "Defects",
            "description": "Cracks and movement.",
            "findings": [
              {
                "id": "defects-finding",
                "name": "Defects",
                "description": "Defects.",
                "questions": [
                  {
                    "text": "Are there cracks, spreading or displaced stones?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Is it safe?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "repair",
            "name": "Repair",
            "description": "Conservation.",
            "findings": [
              {
                "id": "repair-finding",
                "name": "Repair",
                "description": "Repair approach.",
                "questions": [
                  {
                    "text": "How should it be repaired?",
                    "kind": "action"
                  },
                  {
                    "text": "Which specialists should be involved?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "heritage",
        "name": "Heritage",
        "description": "Protection.",
        "rationale": "Historic arches are protected.",
        "layers": [
          {
            "id": "status",
            "name": "Status",
            "description": "Listing.",
            "findings": [
              {
                "id": "status-finding",
                "name": "Status",
                "description": "Protection.",
                "questions": [
                  {
                    "text": "Is the arch protected?",
                    "kind": "provenance"
                  },
                  {
                    "text": "What consent is needed?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "meaning",
            "name": "Meaning",
            "description": "Monuments.",
            "findings": [
              {
                "id": "meaning-finding",
                "name": "Meaning",
                "description": "Commemorative meaning.",
                "questions": [
                  {
                    "text": "Does it commemorate something?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is its meaning contested?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should arch forms be separate entries?",
    "How should structural assessments be recorded?",
    "How should freestanding arches be linked to monuments?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}