{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T15:59:26Z",
    "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": "2026-10-05T18:30:00Z",
      "ingestedAt": "2026-10-05T13:31:12+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:33+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q9298968",
    "registryId": "vr.tr.black-star",
    "name": "black star",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.SPC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q9298968/",
  "model": {
    "registry_id": "vr.tr.black-star",
    "name": "black star",
    "purpose": "Let an agent explain the black star hypothesis, distinguish it from black holes and other exotic objects, and present its status as a theoretical proposal with attribution.",
    "definition": "A hypothetical gravitational object proposed as an alternative to a black hole, in which quantum effects such as vacuum polarisation halt collapse just outside where an event horizon would form, leaving a dense body without a singularity or horizon; black stars are theoretical constructs and remain unconfirmed.",
    "what_it_is_for": "Theoretical physics and gravitational research.",
    "affordances": [
      "explain the black star proposal",
      "compare with black holes and gravastars",
      "summarise observational tests with attribution",
      "clarify the hypothetical status"
    ],
    "distinguishing_features": [
      "Hypothetical",
      "No event horizon or singularity",
      "Quantum effects halt collapse",
      "Alternative to black holes"
    ],
    "appearance": "Not observed; would resemble a black hole from afar.",
    "visual_identification": [
      "Theoretical object without an event horizon",
      "Proposed in papers, not catalogued",
      "Black holes are the standard interpretation of observations"
    ],
    "physical_properties": [
      {
        "quantity": "Gravitational mass",
        "unit": "kg",
        "typical_range": "",
        "note": "Mass is a theoretical model parameter that could be constrained by gravitational observations if a candidate were identified."
      },
      {
        "quantity": "Surface areal radius",
        "unit": "m",
        "typical_range": "",
        "note": "Models define this radius through surface area, but no confirmed black star provides an empirical measurement."
      },
      {
        "quantity": "Surface gravitational redshift",
        "unit": "dimensionless",
        "typical_range": "",
        "note": "Models predict redshift from spacetime geometry, and observational estimation would require identifiable surface emission with known reference frequencies."
      }
    ],
    "families_and_kinds": [
      "black stars as proposed by Barcelo and colleagues",
      "related exotic compact objects such as gravastars",
      "black hole mimickers in general"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "hypothetical star",
        "why": "category"
      },
      {
        "relation": "is an alternative to",
        "target": "black hole",
        "why": "standard object"
      },
      {
        "relation": "is related to",
        "target": "ultraluminous X-ray source",
        "why": "compact object observations"
      },
      {
        "relation": "is related to",
        "target": "Lyman-alpha blob",
        "why": "other astrophysical topic"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "No regulation"
    ],
    "failure_modes_and_hazards": [
      "Presenting the hypothesis as established",
      "Confusing with unrelated uses of the name"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Explain the black star hypothesis and how it differs from a black hole, citing its proponents.",
        "Report the observational tests proposed to tell black stars from black holes."
      ],
      "must_not": [
        "Present black stars as observed or established objects.",
        "Attribute claims or results to researchers who did not make them.",
        "Present a fringe interpretation as the scientific consensus."
      ],
      "requires_human": [
        "Publishing a claim that an observation supports or rules out the hypothesis."
      ]
    },
    "ethics": {
      "considerations": [
        "Hypothetical objects are easily overstated in popular science; honesty about status matters.",
        "Credit for theoretical work belongs to those who proposed it."
      ],
      "affected_parties": [
        "Readers and students",
        "Researchers working on the question"
      ]
    },
    "owners": {
      "steward": "Nobody owns the idea; the scientific community evaluates it.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q9298968: black star",
      "url": "https://www.wikidata.org/wiki/Q9298968",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Black star (semiclassical gravity)",
      "url": "https://en.wikipedia.org/wiki/Black_star_%28semiclassical_gravity%29",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "idea",
        "name": "Idea",
        "description": "The proposal.",
        "rationale": "Attribute the idea.",
        "layers": [
          {
            "id": "mechanism",
            "name": "Mechanism",
            "description": "How collapse halts.",
            "findings": [
              {
                "id": "mechanism-finding",
                "name": "Mechanism",
                "description": "Mechanism.",
                "questions": [
                  {
                    "text": "How do black star proposals argue that quantum effects prevent horizon formation?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Who proposed it, and when?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "status",
            "name": "Status",
            "description": "Hypothetical.",
            "findings": [
              {
                "id": "status-finding",
                "name": "Status",
                "description": "Status.",
                "questions": [
                  {
                    "text": "Is the black star an established object or a hypothesis?",
                    "kind": "boundary"
                  },
                  {
                    "text": "How is it presented in the literature?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "compare",
        "name": "Compare",
        "description": "Versus black holes.",
        "rationale": "Differences matter.",
        "layers": [
          {
            "id": "holes",
            "name": "Holes",
            "description": "Black holes.",
            "findings": [
              {
                "id": "holes-finding",
                "name": "Holes",
                "description": "Black holes.",
                "questions": [
                  {
                    "text": "How would a black star differ from a black hole in structure and observable signatures?",
                    "kind": "definition"
                  },
                  {
                    "text": "What does general relativity predict instead?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "others",
            "name": "Others",
            "description": "Other mimickers.",
            "findings": [
              {
                "id": "others-finding",
                "name": "Others",
                "description": "Other mimickers.",
                "questions": [
                  {
                    "text": "How do black stars compare with gravastars, boson stars and fuzzballs?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which are favoured by theorists?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "tests",
        "name": "Tests",
        "description": "Observational tests.",
        "rationale": "Data constrain ideas.",
        "layers": [
          {
            "id": "waves",
            "name": "Waves",
            "description": "Gravitational waves.",
            "findings": [
              {
                "id": "waves-finding",
                "name": "Waves",
                "description": "Gravitational waves.",
                "questions": [
                  {
                    "text": "What do gravitational wave observations say about horizonless objects, according to analyses?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which signatures such as echoes are sought?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "images",
            "name": "Images",
            "description": "Event horizon imaging.",
            "findings": [
              {
                "id": "images-finding",
                "name": "Images",
                "description": "Imaging.",
                "questions": [
                  {
                    "text": "What do event horizon scale images imply for alternatives?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How strong are the constraints?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "learn",
        "name": "Learn",
        "description": "Explaining.",
        "rationale": "Clarity and caution.",
        "layers": [
          {
            "id": "explain",
            "name": "Explain",
            "description": "Plain language.",
            "findings": [
              {
                "id": "explain-finding",
                "name": "Explain",
                "description": "Plain explanation.",
                "questions": [
                  {
                    "text": "How can the black star idea be explained simply while noting its status?",
                    "kind": "action"
                  },
                  {
                    "text": "Which caveats apply?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "names",
            "name": "Names",
            "description": "Name confusion.",
            "findings": [
              {
                "id": "names-finding",
                "name": "Names",
                "description": "Name confusion.",
                "questions": [
                  {
                    "text": "Is a different use of black star meant, such as a symbol or a song?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Which entry fits?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should exotic compact objects be a separate entry?",
    "How should papers be linked?",
    "How should gravitational wave tests be tracked?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}