{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-10-21T18:41:55Z",
    "providers": [
      "Claude"
    ],
    "breadth": "researched by Claude against the sources listed below",
    "pass": 2,
    "wave": 5,
    "engine": "claude",
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-21T18:44:15+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "6 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q46335",
    "registryId": "vr.tr.typewriter",
    "name": "typewriter",
    "version": "0.2.0-wave.5",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q46335/",
  "model": {
    "registry_id": "vr.tr.typewriter",
    "name": "typewriter",
    "purpose": "Let an agent identify a typewriter by type, maker era and mechanism, describe its care, and handle questions about typewritten documents.",
    "definition": "A mechanical, electromechanical or electronic machine that prints characters one at a time onto paper, usually by striking a type element against an inked ribbon, operated from a keyboard.",
    "what_it_is_for": "Producing legible typed text on paper without handwriting or a printing press.",
    "affordances": [
      "identify the type and approximate date of a machine",
      "explain how the mechanism works",
      "advise on ribbon replacement and basic care",
      "describe forensic examination of typed documents in general terms"
    ],
    "distinguishing_features": [
      "Prints onto paper itself; manual and most electric models print on each keystroke, electronic models may buffer text first.",
      "Memory depends on the model: none, a correction buffer, or stored phrases and documents.",
      "Differs from a teleprinter, which sends and receives text over a line."
    ],
    "appearance": "A keyboard machine with a platen roller holding paper, typebars or a single type element and usually a ribbon; either the paper carriage or the typing element moves across the line. Portables fit in carrying cases.",
    "visual_identification": [
      "Platen roller with paper bail",
      "Fan of typebars or a single type ball or daisy wheel",
      "Carriage return lever on manual machines"
    ],
    "physical_properties": [
      {
        "quantity": "mass",
        "typical_range": "3-20",
        "unit": "kg",
        "note": "portables at the low end, office standards at the high end"
      },
      {
        "quantity": "line spacing",
        "typical_range": "single to triple",
        "unit": "",
        "note": "commonly 6 lines per inch at single spacing"
      },
      {
        "quantity": "pitch",
        "typical_range": "10-12",
        "unit": "characters per inch",
        "note": "pica and elite"
      }
    ],
    "families_and_kinds": [
      "manual typebar typewriter",
      "portable typewriter",
      "electric typewriter",
      "typeball typewriter",
      "daisy-wheel electronic typewriter",
      "braille writer"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "machine",
        "why": "a writing machine"
      },
      {
        "relation": "uses",
        "target": "typewriter ribbon",
        "why": "consumable of most impact typewriters"
      },
      {
        "relation": "is confused with",
        "target": "teleprinter",
        "why": "networked typing machine"
      },
      {
        "relation": "is ancestor of",
        "target": "computer keyboard",
        "why": "layout heritage such as QWERTY"
      }
    ],
    "identifiers": [
      {
        "scheme": "serial number",
        "value_or_pattern": "maker-specific pattern",
        "note": "used to date a machine with maker serial lists"
      }
    ],
    "standards_and_regulation": [
      "Keyboard layouts such as QWERTY descend from typewriters; ISO/IEC 9995 standardises keyboard layouts for computers"
    ],
    "failure_modes_and_hazards": [
      "Seized mechanism from old lubricant and dust",
      "Dried ribbons",
      "Pinched fingers in typebar baskets",
      "Mains wiring faults in old electric models"
    ],
    "agent_conduct": {
      "may": [
        "help identify and date a machine",
        "explain care and ribbon replacement"
      ],
      "must_not": [
        "advise opening electric models while connected to mains",
        "claim authorship of a typed document from typeface alone",
        "give a valuation as definitive"
      ],
      "requires_human": [
        "forensic attribution of a typed document"
      ]
    },
    "ethics": {
      "considerations": [
        "privacy of typed documents and letters",
        "fair forensic attribution"
      ],
      "affected_parties": [
        "authors of typed documents",
        "collectors and owners"
      ]
    },
    "owners": {
      "steward": "the person who owns the machine",
      "master_systems": [
        "maker serial number records and collector databases"
      ]
    },
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": []
  },
  "sources": [
    {
      "id": "SRC-001",
      "title": "Q46335",
      "publisher": "Wikidata",
      "url": "https://www.wikidata.org/wiki/Q46335",
      "what_it_supports": "identity of the registry item, labels and sitelinks",
      "url_status": "live"
    },
    {
      "id": "SRC-002",
      "title": "Typewriter",
      "publisher": "Wikipedia",
      "url": "https://en.wikipedia.org/wiki/Typewriter",
      "what_it_supports": "general description of the subject",
      "url_status": "live"
    },
    {
      "id": "SRC-003",
      "title": "Typewriter ribbons and carbon paper, Circular 431",
      "publisher": "US National Bureau of Standards (NIST)",
      "url": "https://nvlpubs.nist.gov/nistpubs/Legacy/circ/nbscircular431.pdf",
      "what_it_supports": "ribbons, pica and elite pitch",
      "url_status": "live"
    },
    {
      "id": "SRC-004",
      "title": "Forensic Database Questioned Documents Table",
      "publisher": "National Institute of Standards and Technology",
      "url": "https://www.nist.gov/forensics/forensic-database-questioned-documents-table",
      "what_it_supports": "typewriter comparison in document examination",
      "url_status": "live"
    },
    {
      "id": "SRC-005",
      "title": "Remington Quiet-Riter Typewriter",
      "publisher": "Smithsonian National Museum of American History",
      "url": "https://americanhistory.si.edu/collections/object/nmah_1175740",
      "what_it_supports": "portable construction and carrying case",
      "url_status": "blocked"
    },
    {
      "id": "SRC-006",
      "title": "Electronic Typewriter, made by Imperial, 1984",
      "publisher": "Science Museum Group",
      "url": "https://collection.sciencemuseumgroup.org.uk/objects/co37749/electronic-typewriter-made-by-imperial-1984-typewriter",
      "what_it_supports": "memory in electronic typewriters",
      "url_status": "live"
    },
    {
      "id": "SRC-007",
      "title": "Where Did the QWERTY Keyboard Come From?",
      "publisher": "Smithsonian Magazine",
      "url": "https://www.smithsonianmag.com/innovation/origins-qwerty-keyboard-typewriter-180982726/",
      "what_it_supports": "Sholes and Glidden, Remington and QWERTY",
      "url_status": "live"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "identity-and-dating",
        "name": "Identity and dating",
        "description": "Which machine it is.",
        "rationale": "Owners and collectors ask first what they have.",
        "layers": [
          {
            "id": "maker-and-model",
            "name": "Maker and model",
            "description": "Brand, model and serial.",
            "findings": [
              {
                "id": "model-identification",
                "name": "Model identification",
                "description": "Name plates and features.",
                "questions": [
                  {
                    "text": "Which maker and model is this?",
                    "kind": "provenance"
                  },
                  {
                    "text": "What does the serial number say about its date?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "typeface-and-keyboard",
            "name": "Typeface and keyboard",
            "description": "Pitch, font, layout and paper.",
            "findings": [
              {
                "id": "typeface-and-keyboard",
                "name": "Typeface and keyboard",
                "description": "Pitch, character set and layout.",
                "questions": [
                  {
                    "text": "What pitch, typeface and keyboard layout does it have?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Which characters can it type?",
                    "kind": "definition"
                  }
                ]
              },
              {
                "id": "paper-handling",
                "name": "Paper handling",
                "description": "Width, margins and tabs.",
                "questions": [
                  {
                    "text": "What is the maximum paper width?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Does it have tab stops and a correction feature?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "mechanism",
        "name": "Mechanism",
        "description": "How it works.",
        "rationale": "Repair and use depend on mechanism.",
        "layers": [
          {
            "id": "type-action",
            "name": "Type action",
            "description": "Typebars, ball or wheel.",
            "findings": [
              {
                "id": "printing-element",
                "name": "Printing element",
                "description": "How characters reach paper.",
                "questions": [
                  {
                    "text": "Does it use typebars, a typeball or a daisy wheel?",
                    "kind": "definition"
                  },
                  {
                    "text": "How is the ribbon advanced?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "paper-handling",
            "name": "Paper handling",
            "description": "Platen and carriage.",
            "findings": [
              {
                "id": "carriage-and-platen",
                "name": "Carriage and platen",
                "description": "Feed, spacing and return.",
                "questions": [
                  {
                    "text": "Does the carriage or the element move?",
                    "kind": "definition"
                  },
                  {
                    "text": "What line spacing settings exist?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "care-and-repair",
        "name": "Care and repair",
        "description": "Keeping it working.",
        "rationale": "Most practical questions are about use.",
        "layers": [
          {
            "id": "consumables",
            "name": "Consumables",
            "description": "Ribbons and correction.",
            "findings": [
              {
                "id": "ribbon",
                "name": "Ribbon",
                "description": "Width, spool and type.",
                "questions": [
                  {
                    "text": "Which ribbon fits this machine?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Is it fabric or film?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "maintenance",
            "name": "Maintenance",
            "description": "Cleaning and adjustment.",
            "findings": [
              {
                "id": "service",
                "name": "Service",
                "description": "Cleaning, lubrication, faults.",
                "questions": [
                  {
                    "text": "What causes this key or carriage fault?",
                    "kind": "action"
                  },
                  {
                    "text": "Does it need a specialist?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "documents",
        "name": "Documents",
        "description": "Typed documents and their examination.",
        "rationale": "Typed papers still appear in archives and cases.",
        "layers": [
          {
            "id": "typewritten-records",
            "name": "Typewritten records",
            "description": "Letters, forms and manuscripts.",
            "findings": [
              {
                "id": "typed-record",
                "name": "Typed record",
                "description": "What was typed and when.",
                "questions": [
                  {
                    "text": "When and on what machine was this document typed?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is it an original or a carbon copy?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "forensic-examination",
            "name": "Forensic examination",
            "description": "Comparing typing to a machine.",
            "findings": [
              {
                "id": "comparison",
                "name": "Comparison",
                "description": "Defects and typeface matching.",
                "questions": [
                  {
                    "text": "Do typeface defects match a given machine?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Who is qualified to conclude?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "history-and-heritage",
        "name": "History and heritage",
        "description": "Place in history.",
        "rationale": "Readers ask about history and collecting.",
        "layers": [
          {
            "id": "development",
            "name": "Development",
            "description": "From early machines to electronics.",
            "findings": [
              {
                "id": "milestones",
                "name": "Milestones",
                "description": "Key designs and dates.",
                "questions": [
                  {
                    "text": "When did commercial typewriters appear?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How did electric and electronic models change typing?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "collecting",
            "name": "Collecting",
            "description": "Value and preservation.",
            "findings": [
              {
                "id": "collection-care",
                "name": "Collection care",
                "description": "Storage and condition.",
                "questions": [
                  {
                    "text": "How should the machine be stored?",
                    "kind": "action"
                  },
                  {
                    "text": "What affects its value?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should braille writers and stenotype machines be kinds here or separate entries?",
    "Maker and model belong to the individual machine; how should brand records link?"
  ],
  "statistics": {
    "bundles": 5,
    "layers": 10,
    "findings": 11,
    "questions": 22
  }
}
