{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T15:32:53Z",
    "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": "2026-10-05T18:00:00Z",
      "ingestedAt": "2026-10-05T13:28:27+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:51:54+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q1401905",
    "registryId": "vr.tr.fineness",
    "name": "fineness",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "XCT.REL"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q1401905/",
  "model": {
    "registry_id": "vr.tr.fineness",
    "name": "fineness",
    "purpose": "Let an agent explain fineness and its notations, convert between millesimal fineness and carats, interpret hallmarks, and help buyers and sellers of precious metals understand purity.",
    "definition": "The proportion of precious metal in an alloy, expressed as a mass fraction in parts per thousand, such as 999 for nearly pure gold or 925 for sterling silver, or in carats for gold where 24 carat is pure; fineness is verified by assay and shown by hallmarks and is central to bullion, jewellery and coinage.",
    "what_it_is_for": "Stating and verifying precious metal purity.",
    "affordances": [
      "convert fineness to carat and percentage",
      "interpret hallmarks and standards",
      "explain assay methods",
      "compute metal content of an item"
    ],
    "distinguishing_features": [
      "Mass fraction of precious metal",
      "Parts per thousand or carats",
      "Verified by assay",
      "Legally regulated marks"
    ],
    "appearance": "Not physical; numbers stamped on metal items.",
    "visual_identification": [
      "Marks such as 925, 750 or 999",
      "Carat marks like 18K",
      "Plated items carry different marks"
    ],
    "physical_properties": [],
    "families_and_kinds": [
      "gold fineness",
      "silver fineness",
      "platinum and palladium fineness",
      "bullion standards",
      "historical coin fineness"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "mass fraction",
        "why": "category"
      },
      {
        "relation": "is verified by",
        "target": "hallmark",
        "why": "mark"
      },
      {
        "relation": "is related to",
        "target": "Roman currency",
        "why": "historical coin fineness"
      },
      {
        "relation": "is related to",
        "target": "amount-of-substance fraction",
        "why": "related fraction"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "National hallmarking laws",
      "Vienna Convention on the Control of Precious Metals",
      "LBMA good delivery standards"
    ],
    "failure_modes_and_hazards": [
      "Counterfeit marks",
      "Confusing carat purity with carat weight",
      "Mispriced items"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Report fineness from hallmarks and assay certificates.",
        "Explain fineness scales and carat equivalents."
      ],
      "must_not": [
        "Misstate or fake fineness, hallmarks or assay results.",
        "Sell plated or lower-grade metal as higher fineness.",
        "Help evade hallmarking law."
      ],
      "requires_human": [
        "Certifying fineness for sale or valuation."
      ]
    },
    "ethics": {
      "considerations": [
        "Buyers cannot judge purity by eye and depend on honest marking.",
        "Precious metal fraud harms savers and small buyers most."
      ],
      "affected_parties": [
        "Buyers and sellers",
        "Jewellers",
        "Savers in precious metals"
      ]
    },
    "owners": {
      "steward": "The assay office or hallmarking authority that tests and marks the metal.",
      "master_systems": [
        "Assay office hallmark records"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q1401905: fineness",
      "url": "https://www.wikidata.org/wiki/Q1401905",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Fineness",
      "url": "https://en.wikipedia.org/wiki/Fineness",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "convert",
        "name": "Convert",
        "description": "Notations.",
        "rationale": "Same purity, different scales.",
        "layers": [
          {
            "id": "scales",
            "name": "Scales",
            "description": "Millesimal and carat.",
            "findings": [
              {
                "id": "scales-finding",
                "name": "Scales",
                "description": "Scales.",
                "questions": [
                  {
                    "text": "What is this fineness in carats, parts per thousand and percent?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Is carat purity or carat gemstone weight meant?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "content",
            "name": "Content",
            "description": "Metal content.",
            "findings": [
              {
                "id": "content-finding",
                "name": "Content",
                "description": "Metal content.",
                "questions": [
                  {
                    "text": "How much pure metal does this item contain, given weight and fineness?",
                    "kind": "measurement"
                  },
                  {
                    "text": "What is its metal value at current prices, according to a quoted source?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "marks",
        "name": "Marks",
        "description": "Hallmarks.",
        "rationale": "Marks certify purity.",
        "layers": [
          {
            "id": "read",
            "name": "Read",
            "description": "Reading hallmarks.",
            "findings": [
              {
                "id": "read-finding",
                "name": "Read",
                "description": "Reading hallmarks.",
                "questions": [
                  {
                    "text": "What do the marks on this item indicate about fineness, assay office and date?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which country system applies?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "fake",
            "name": "Fake",
            "description": "Counterfeits.",
            "findings": [
              {
                "id": "fake-finding",
                "name": "Fake",
                "description": "Counterfeits.",
                "questions": [
                  {
                    "text": "Could the marks be counterfeit?",
                    "kind": "boundary"
                  },
                  {
                    "text": "How can purity be verified independently?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "assay",
        "name": "Assay",
        "description": "Testing.",
        "rationale": "Assay verifies.",
        "layers": [
          {
            "id": "methods",
            "name": "Methods",
            "description": "Assay methods.",
            "findings": [
              {
                "id": "methods-finding",
                "name": "Methods",
                "description": "Assay methods.",
                "questions": [
                  {
                    "text": "Which assay methods are used, such as fire assay, XRF and touchstone?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How accurate is each?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          },
          {
            "id": "services",
            "name": "Services",
            "description": "Assay offices.",
            "findings": [
              {
                "id": "services-finding",
                "name": "Services",
                "description": "Assay offices.",
                "questions": [
                  {
                    "text": "Where can an item be assayed and hallmarked here?",
                    "kind": "provenance"
                  },
                  {
                    "text": "What does it cost?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "standards",
        "name": "Standards",
        "description": "Legal standards.",
        "rationale": "Standards vary.",
        "layers": [
          {
            "id": "legal",
            "name": "Legal",
            "description": "Minimum standards.",
            "findings": [
              {
                "id": "legal-finding",
                "name": "Legal",
                "description": "Legal standards.",
                "questions": [
                  {
                    "text": "Which fineness standards are legal for gold and silver here?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Must items be hallmarked before sale?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "bullion",
            "name": "Bullion",
            "description": "Bullion standards.",
            "findings": [
              {
                "id": "bullion-finding",
                "name": "Bullion",
                "description": "Bullion.",
                "questions": [
                  {
                    "text": "What fineness do bullion bars and coins have?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is the user asking for investment advice?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should hallmarks be a separate entry?",
    "How should national standards be linked?",
    "How should assay services be localised?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}