{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-14T03:25:52Z",
    "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": 4,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T07:45:37+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:51:59+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q42332",
    "registryId": "vr.tr.pdf",
    "name": "PDF",
    "version": "0.2.0-wave.4",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "INF.KNW"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q42332/",
  "model": {
    "registry_id": "vr.tr.pdf",
    "name": "PDF",
    "purpose": "Let an agent explain the PDF format, relay its purpose, features and variants from documentation, describe the named variants, and distinguish it from editable document formats and image formats.",
    "definition": "A file format developed by Adobe for presenting documents, including text, images and layout, independently of the software, hardware and operating system used to view them; the registry aliases name variants such as PDF/A for archiving, PDF/X for printing and the PDF Portfolio format. PDF, short for Portable Document Format, became an open standard as ISO 32000 and is one of the most widely used document formats.",
    "what_it_is_for": "Presenting documents consistently across systems.",
    "affordances": [
      "explain the format and its purpose",
      "relay features and variants",
      "describe the named variants",
      "distinguish it from other formats"
    ],
    "distinguishing_features": [
      "Fixed layout across systems",
      "Open ISO standard",
      "Multiple specialised variants",
      "Very widely used"
    ],
    "appearance": "Not a visible object; a document file that renders the same page layout on any viewer.",
    "visual_identification": [
      "Portable Document Format file",
      "PDF/A archiving, PDF/X printing, PDF Portfolio",
      "Word or ODF documents are editable text; JPEG and PNG are single images"
    ],
    "physical_properties": [
      {
        "quantity": "full name",
        "typical_range": "Portable Document Format",
        "unit": "note",
        "note": ""
      },
      {
        "quantity": "standard",
        "typical_range": "ISO 32000",
        "unit": "note",
        "note": ""
      },
      {
        "quantity": "registry parents",
        "typical_range": "document file format, metafile",
        "unit": "note",
        "note": ""
      }
    ],
    "families_and_kinds": [
      "PDF/A",
      "PDF/X",
      "PDF Portfolio",
      "tagged PDF"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "document file format",
        "why": "in registry terms"
      },
      {
        "relation": "is contrasted with",
        "target": "word processing format",
        "why": ""
      },
      {
        "relation": "is contrasted with",
        "target": "image file format",
        "why": ""
      },
      {
        "relation": "is defined by",
        "target": "ISO standard",
        "why": ""
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "ISO 32000",
      "PDF/A and PDF/X sub-standards"
    ],
    "failure_modes_and_hazards": [
      "Confusing variants",
      "Assuming PDFs are always editable",
      "Overstating security"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Create, read, convert and validate PDF files the user is entitled to handle.",
        "Explain PDF variants such as archival and accessible PDF.",
        "Check documents for accessibility tags."
      ],
      "must_not": [
        "Bypass password protection or rights restrictions on a PDF without authority.",
        "Alter the content of a signed or official PDF and present it as the original.",
        "Treat a PDF as secure or tamper-proof without checking signatures.",
        "Open PDFs from untrusted sources in a way that runs embedded code."
      ],
      "requires_human": [
        "Signing or certifying a PDF on someone's behalf."
      ]
    },
    "ethics": {
      "considerations": [
        "PDFs carry contracts and records; tampering can defraud people.",
        "Inaccessible PDFs exclude people with disabilities."
      ],
      "affected_parties": [
        "Document authors",
        "Readers with disabilities",
        "Parties relying on the document"
      ]
    },
    "owners": {
      "steward": "The author or owner of each document; ISO maintains the format.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q42332: PDF",
      "url": "https://www.wikidata.org/wiki/Q42332",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: PDF",
      "url": "https://en.wikipedia.org/wiki/PDF",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "understand",
        "name": "Understand",
        "description": "What PDF is.",
        "rationale": "Definition.",
        "layers": [
          {
            "id": "definition",
            "name": "Definition",
            "description": "Definition.",
            "findings": [
              {
                "id": "definition-finding",
                "name": "Definition",
                "description": "Definition.",
                "questions": [
                  {
                    "text": "What is the PDF format, and how does it differ from editable document and image formats?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is the question about a variant such as PDF/A?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "variants",
            "name": "Variants",
            "description": "Named variants.",
            "findings": [
              {
                "id": "variants-finding",
                "name": "Variants",
                "description": "Variants.",
                "questions": [
                  {
                    "text": "What are PDF/A, PDF/X and PDF Portfolio?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which entry fits the specific variant?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "features",
        "name": "Features",
        "description": "Features.",
        "rationale": "Documentation.",
        "layers": [
          {
            "id": "layout",
            "name": "Layout",
            "description": "Fixed layout.",
            "findings": [
              {
                "id": "layout-finding",
                "name": "Layout",
                "description": "Layout.",
                "questions": [
                  {
                    "text": "How does PDF preserve layout across systems?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "contents",
            "name": "Contents",
            "description": "Text, images, forms.",
            "findings": [
              {
                "id": "contents-finding",
                "name": "Contents",
                "description": "Contents.",
                "questions": [
                  {
                    "text": "What can a PDF contain beyond text?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which sources are cited?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "standard",
        "name": "Standard",
        "description": "Standard.",
        "rationale": "Documentation.",
        "layers": [
          {
            "id": "iso",
            "name": "ISO",
            "description": "ISO standard.",
            "findings": [
              {
                "id": "iso-finding",
                "name": "ISO",
                "description": "ISO.",
                "questions": [
                  {
                    "text": "How did PDF become the open ISO 32000 standard?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits ISO standard?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "archiving",
            "name": "Archiving",
            "description": "PDF/A.",
            "findings": [
              {
                "id": "archiving-finding",
                "name": "Archiving",
                "description": "Archiving.",
                "questions": [
                  {
                    "text": "How does PDF/A support long-term archiving?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which sources are cited?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "Use.",
        "rationale": "Context.",
        "layers": [
          {
            "id": "accessibility",
            "name": "Accessibility",
            "description": "Accessibility.",
            "findings": [
              {
                "id": "accessibility-finding",
                "name": "Accessibility",
                "description": "Accessibility.",
                "questions": [
                  {
                    "text": "How do tagged PDFs support accessibility?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is the information current?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "viewers",
            "name": "Viewers",
            "description": "Viewers and tools.",
            "findings": [
              {
                "id": "viewers-finding",
                "name": "Viewers",
                "description": "Viewers.",
                "questions": [
                  {
                    "text": "What tools open and create PDFs?",
                    "kind": "action"
                  },
                  {
                    "text": "Is the information neutral across vendors?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should variants be separate entries?",
    "How should the ISO standard be linked?",
    "How should accessibility features be documented?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}