{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-10-22T10:42:11Z",
    "providers": [
      "Claude"
    ],
    "breadth": "researched by Claude against the sources listed below",
    "pass": 2,
    "wave": 5,
    "engine": "claude",
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-22T10:46:58+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "5 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q3930",
    "registryId": "vr.tr.table-tennis",
    "name": "table tennis",
    "version": "0.2.0-wave.5",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "ACT.ACT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q3930/",
  "model": {
    "registry_id": "vr.tr.table-tennis",
    "name": "table tennis",
    "purpose": "Let an agent explain table tennis rules, equipment and competitions, and give results from official sources.",
    "definition": "A racket sport in which two or four players hit a light hollow ball back and forth across a net on a table using small bats, governed internationally by the ITTF; also called ping-pong, with an Olympic programme since 1988.",
    "what_it_is_for": "Sport and recreation.",
    "affordances": [
      "explain rules and scoring",
      "give table and ball specifications",
      "describe competitions",
      "describe para table tennis"
    ],
    "distinguishing_features": [
      "Games to 11 points, win by 2.",
      "The serve is tossed near vertically, without spin, at least 16 cm from an open palm, and struck while falling.",
      "Racket surfaces are matt, black on one side and a bright colour distinct from black and the ball on the other."
    ],
    "appearance": "Players with rubber-covered bats hitting a small white or orange ball over a net on a green or blue table.",
    "visual_identification": [
      "Table with centre net and white lines",
      "Small light ball and rubber-covered bats"
    ],
    "physical_properties": [
      {
        "quantity": "table size",
        "typical_range": "2.74 x 1.525",
        "unit": "m",
        "note": "76 cm high; net 15.25 cm (ITTF standard)"
      },
      {
        "quantity": "ball",
        "typical_range": "40 mm, 2.7 g",
        "unit": "",
        "note": "plastic since about 2015"
      }
    ],
    "families_and_kinds": [
      "singles",
      "doubles",
      "para table tennis (wheelchair classes 1-5, standing 6-10, intellectual impairment 11)",
      "large-ball table tennis"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "racket sport",
        "why": "sport"
      },
      {
        "relation": "is governed by",
        "target": "International Table Tennis Federation",
        "why": "body"
      },
      {
        "relation": "uses",
        "target": "table tennis racket",
        "why": "equipment"
      },
      {
        "relation": "is part of",
        "target": "Olympic Games",
        "why": "programme"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "ITTF Handbook (Laws of Table Tennis and Regulations)",
      "ITTF equipment authorisation"
    ],
    "failure_modes_and_hazards": [
      "Minor injuries"
    ],
    "agent_conduct": {
      "may": [
        "explain rules and give results from official sources"
      ],
      "must_not": [
        "give betting advice",
        "invent results"
      ],
      "requires_human": []
    },
    "ethics": {
      "considerations": [
        "fair play"
      ],
      "affected_parties": [
        "players"
      ]
    },
    "owners": {
      "steward": "nobody as a sport; rules are maintained by the ITTF",
      "master_systems": [
        "ITTF records"
      ]
    },
    "facets_not_applicable": {},
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": []
  },
  "sources": [
    {
      "id": "SRC-001",
      "title": "Q3930",
      "publisher": "Wikidata",
      "url": "https://www.wikidata.org/wiki/Q3930",
      "what_it_supports": "identity of the registry item, labels and sitelinks",
      "url_status": "live"
    },
    {
      "id": "SRC-002",
      "title": "Table tennis",
      "publisher": "Wikipedia",
      "url": "https://en.wikipedia.org/wiki/Table_tennis",
      "what_it_supports": "general description of the subject",
      "url_status": "live"
    },
    {
      "id": "SRC-003",
      "title": "ITTF Statutes 2026",
      "publisher": "International Table Tennis Federation",
      "url": "https://db.ittf.com/sites/default/files/public/2026-02/2026_Statutes_v1_consolidated_clean.pdf",
      "what_it_supports": "Table and ball specifications, net height, scoring, service, racket colours and equipment authorisation.",
      "url_status": "live"
    },
    {
      "id": "SRC-004",
      "title": "Table Tennis' Smashing Debut at Seoul 1988",
      "publisher": "International Table Tennis Federation",
      "url": "https://www.ittf.com/2024/06/24/table-tennis-serves-up-a-historic-debut-at-seoul-1988/",
      "what_it_supports": "Olympic debut in 1988 and singles and doubles competition.",
      "url_status": "blocked"
    },
    {
      "id": "SRC-005",
      "title": "Sport Week: 10 things to know about Para table tennis",
      "publisher": "International Paralympic Committee",
      "url": "https://www.paralympic.org/news/sport-week-10-things-know-about-para-table-tennis",
      "what_it_supports": "Para table tennis and its 11 sport classes.",
      "url_status": "live"
    },
    {
      "id": "SRC-006",
      "title": "Rules and refereeing",
      "publisher": "Japan Table Tennis Association",
      "url": "https://jtta.or.jp/referee",
      "what_it_supports": "Large-ball table tennis has separate published rules.",
      "url_status": "live"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "rules",
        "name": "Rules",
        "description": "How it is played.",
        "rationale": "Rules have editions.",
        "layers": [
          {
            "id": "scoring",
            "name": "Scoring",
            "description": "Games and matches.",
            "findings": [
              {
                "id": "scoring",
                "name": "Scoring",
                "description": "Rule and edition.",
                "questions": [
                  {
                    "text": "How are points and games scored?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which handbook edition?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "service",
            "name": "Service",
            "description": "Serve rules.",
            "findings": [
              {
                "id": "service-rule",
                "name": "Service rule",
                "description": "Rule.",
                "questions": [
                  {
                    "text": "What makes a legal serve?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Under which law?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "equipment",
        "name": "Equipment",
        "description": "Table, ball, racket.",
        "rationale": "Specifications matter.",
        "layers": [
          {
            "id": "table-and-ball",
            "name": "Table and ball",
            "description": "Specifications.",
            "findings": [
              {
                "id": "specification",
                "name": "Specification",
                "description": "Values.",
                "questions": [
                  {
                    "text": "What are the table and ball specifications?",
                    "kind": "measurement"
                  },
                  {
                    "text": "From which rules?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "racket",
            "name": "Racket",
            "description": "Blade and rubbers.",
            "findings": [
              {
                "id": "racket-rule",
                "name": "Racket rule",
                "description": "Requirement.",
                "questions": [
                  {
                    "text": "Which rubbers are authorised?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which colours?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "competitions",
        "name": "Competitions",
        "description": "Tournaments.",
        "rationale": "Results from official sources.",
        "layers": [
          {
            "id": "international",
            "name": "International",
            "description": "Olympics and World Championships.",
            "findings": [
              {
                "id": "result",
                "name": "Result",
                "description": "Event and winner.",
                "questions": [
                  {
                    "text": "Who won the event?",
                    "kind": "provenance"
                  },
                  {
                    "text": "When?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "rankings",
            "name": "Rankings",
            "description": "World ranking.",
            "findings": [
              {
                "id": "ranking",
                "name": "Ranking",
                "description": "Position and date.",
                "questions": [
                  {
                    "text": "What is the ranking?",
                    "kind": "measurement"
                  },
                  {
                    "text": "As of which date?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "variants",
        "name": "Variants",
        "description": "Other forms.",
        "rationale": "Variants have rules.",
        "layers": [
          {
            "id": "para-table-tennis",
            "name": "Para table tennis",
            "description": "Classes.",
            "findings": [
              {
                "id": "para-classes",
                "name": "Para classes",
                "description": "Classification.",
                "questions": [
                  {
                    "text": "Which classes exist?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Under which rules?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "large-ball",
            "name": "Large ball",
            "description": "Variant.",
            "findings": [
              {
                "id": "variant",
                "name": "Variant",
                "description": "Rules.",
                "questions": [
                  {
                    "text": "How does large-ball play differ?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Where is it played?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "The registry merges a specific tournament (Nigerian Open); it should be a separate entry."
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}