{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-10-21T19:46:56Z",
    "providers": [
      "Claude"
    ],
    "breadth": "researched by Claude against the sources listed below",
    "pass": 2,
    "wave": 5,
    "engine": "claude",
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-21T19:51:05+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "5 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q5276451",
    "registryId": "vr.tr.dihydrostilbenoid",
    "name": "dihydrostilbenoid",
    "version": "0.2.0-wave.5",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.MAT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q5276451/",
  "model": {
    "registry_id": "vr.tr.dihydrostilbenoid",
    "name": "dihydrostilbenoid",
    "purpose": "Let an agent classify a compound as a dihydrostilbenoid, name its sources and reported activities, and find chemical database records, without health claims.",
    "definition": "A group of natural compounds built on a 1,2-diphenylethane (bibenzyl) skeleton, commonly hydroxylated or methoxylated; the saturated counterparts of stilbenoids, found mainly in plants such as orchids and yams and in liverworts.",
    "what_it_is_for": "Some members have documented plant defence or growth-regulating roles, such as dormancy induction; functions are established compound by compound.",
    "affordances": [
      "decide whether a compound belongs to the group",
      "name natural sources",
      "find database records",
      "summarise reported research findings with sources"
    ],
    "distinguishing_features": [
      "The two benzene rings are linked by a saturated -CH2-CH2- bridge; stilbenoids have a double bond there.",
      "Also called bibenzyls.",
      "Related dihydrophenanthrenes are formed by ring closure."
    ],
    "appearance": null,
    "visual_identification": [
      "Identified by chemical structure, not by sight"
    ],
    "physical_properties": [],
    "families_and_kinds": [
      "simple bibenzyls",
      "bibenzyl-type batatasins (such as batatasin III)",
      "lunularic acid and relatives",
      "prenylated bibenzyls",
      "bisbibenzyls (cyclic and acyclic, such as marchantins and riccardins)"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "plant natural product",
        "why": "metabolite class"
      },
      {
        "relation": "is related to",
        "target": "stilbenoid",
        "why": "unsaturated counterpart"
      },
      {
        "relation": "is found in",
        "target": "orchids, yams and liverworts",
        "why": "natural sources"
      },
      {
        "relation": "is related to",
        "target": "dihydrophenanthrene",
        "why": "cyclisation products, assessed individually"
      }
    ],
    "identifiers": [
      {
        "scheme": "CAS Registry Number",
        "value_or_pattern": "103-29-7",
        "note": "parent bibenzyl only"
      }
    ],
    "standards_and_regulation": [
      "IUPAC nomenclature of organic compounds"
    ],
    "failure_modes_and_hazards": [
      "Unsupported health claims about plant extracts"
    ],
    "agent_conduct": {
      "may": [
        "classify compounds and summarise research"
      ],
      "must_not": [
        "make therapeutic claims",
        "give doses of extracts"
      ],
      "requires_human": []
    },
    "ethics": {
      "considerations": [
        "honesty about preliminary research",
        "sustainable harvesting of wild orchids"
      ],
      "affected_parties": [
        "consumers of herbal products",
        "wild plant populations"
      ]
    },
    "owners": {
      "steward": "nobody; a chemical class",
      "master_systems": [
        "PubChem",
        "ChEBI",
        "natural product databases"
      ]
    },
    "facets_not_applicable": {
      "properties": "A chemical class: properties belong to individual compounds.",
      "recognition": "A chemical class is recognised by structure, not by sight."
    },
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": []
  },
  "sources": [
    {
      "id": "SRC-001",
      "title": "Q5276451",
      "publisher": "Wikidata",
      "url": "https://www.wikidata.org/wiki/Q5276451",
      "what_it_supports": "identity of the registry item, labels and sitelinks",
      "url_status": "live"
    },
    {
      "id": "SRC-002",
      "title": "Batatasin I",
      "publisher": "PubChem",
      "url": "https://pubchem.ncbi.nlm.nih.gov/compound/Batatasin-I",
      "what_it_supports": "a phenanthrene batatasin",
      "url_status": "live"
    },
    {
      "id": "SRC-003",
      "title": "Bis-bibenzyls from the Cameroon Liverwort Marchantia debilis",
      "publisher": "Natural Product Communications, via PubMed",
      "url": "https://pubmed.ncbi.nlm.nih.gov/30807033/",
      "what_it_supports": "bisbibenzyls",
      "url_status": "live"
    },
    {
      "id": "SRC-004",
      "title": "The inducible 9,10-dihydrophenanthrene pathway",
      "publisher": "Plant Molecular Biology, via PubMed",
      "url": "https://pubmed.ncbi.nlm.nih.gov/7872785/",
      "what_it_supports": "bibenzyl synthase",
      "url_status": "live"
    },
    {
      "id": "SRC-005",
      "title": "Batatasins: New dormancy-inducing substances of yam bulbils",
      "publisher": "Planta, via PubMed",
      "url": "https://pubmed.ncbi.nlm.nih.gov/24473917/",
      "what_it_supports": "batatasins",
      "url_status": "live"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "class",
        "name": "Class",
        "description": "What makes a compound a dihydrostilbenoid.",
        "rationale": "Structure decides membership.",
        "layers": [
          {
            "id": "skeleton",
            "name": "Skeleton",
            "description": "Bibenzyl core.",
            "findings": [
              {
                "id": "core-structure",
                "name": "Core structure",
                "description": "Saturated bridge and rings.",
                "questions": [
                  {
                    "text": "Does the compound have the bibenzyl core?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Which substituents does it carry?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "subgroups",
            "name": "Subgroups",
            "description": "Batatasins and others.",
            "findings": [
              {
                "id": "subgroup",
                "name": "Subgroup",
                "description": "Named subgroups; merged names are members, not synonyms of the class.",
                "questions": [
                  {
                    "text": "Which subgroup does it belong to?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is it a cyclised derivative?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "occurrence",
        "name": "Occurrence",
        "description": "Where they are found.",
        "rationale": "Natural sources anchor identity.",
        "layers": [
          {
            "id": "sources",
            "name": "Sources",
            "description": "Plants and liverworts.",
            "findings": [
              {
                "id": "natural-source",
                "name": "Natural source",
                "description": "Species and part.",
                "questions": [
                  {
                    "text": "Which organism produces it?",
                    "kind": "provenance"
                  },
                  {
                    "text": "In which tissue?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "biosynthesis",
            "name": "Biosynthesis",
            "description": "Formation in plants.",
            "findings": [
              {
                "id": "pathway",
                "name": "Pathway",
                "description": "Biosynthetic route.",
                "questions": [
                  {
                    "text": "How is it made in the plant?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which enzymes are involved?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "data",
        "name": "Data",
        "description": "Records and properties.",
        "rationale": "Records must match the exact compound.",
        "layers": [
          {
            "id": "identifiers",
            "name": "Identifiers",
            "description": "Database entries.",
            "findings": [
              {
                "id": "database-record",
                "name": "Database record",
                "description": "PubChem and ChEBI entries.",
                "questions": [
                  {
                    "text": "Which database records exist?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Do they agree on structure?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "properties",
            "name": "Properties",
            "description": "Chemical properties.",
            "findings": [
              {
                "id": "properties",
                "name": "Properties",
                "description": "Measured properties.",
                "questions": [
                  {
                    "text": "Which properties have been measured?",
                    "kind": "measurement"
                  },
                  {
                    "text": "By which method?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "research",
        "name": "Research",
        "description": "Reported activities.",
        "rationale": "Research findings are preliminary.",
        "layers": [
          {
            "id": "activities",
            "name": "Activities",
            "description": "Reported biological activity.",
            "findings": [
              {
                "id": "reported-activity",
                "name": "Reported activity",
                "description": "Assay and result.",
                "questions": [
                  {
                    "text": "Which activity was reported, in which assay?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Was it in cells, animals or people?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "evidence-quality",
            "name": "Evidence quality",
            "description": "Strength of evidence.",
            "findings": [
              {
                "id": "evidence",
                "name": "Evidence",
                "description": "Replication and reviews.",
                "questions": [
                  {
                    "text": "Has the finding been replicated?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is there any clinical evidence?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "The registry merges many individual compounds; which deserve separate entries?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}