{
    "model": {
        "rank": 5435,
        "code": "thing-q190552",
        "model_id": "vr.tr.hindu-calendar",
        "name": "Hindu calendar",
        "purpose": "Enable an AI agent to identify a Hindu calendrical tradition, interpret its dates, assess the evidence behind calculations, and determine when conversion or observance advice is justified.",
        "family": "Thing Registry",
        "category": "Information and virtual systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "INF",
        "domain": "INF.KNW",
        "industry": "",
        "version": "",
        "url": "/models/thing/q190552/",
        "tier": 2,
        "score": 67,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 67,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q190552",
                "url": "https://www.wikidata.org/wiki/Q190552",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T22:22:18Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 22.5,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a08842-c77a-7082-911f-a29747f78a88\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: Hindu calendar\nSense to describe: (none recorded)\nDomain code: INF.KNW\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 ",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 66,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a08842-c76d-7b33-b037-c359997126d7\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: Hindu calendar\nRegistry id: vr.tr.hindu-calendar\nPlane / domain: INF / INF.KNW\nRegistry definition: (none recorded)\nNames folded into this entry: (no"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q190552",
                "registryId": "vr.tr.hindu-calendar",
                "name": "Hindu calendar",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "INF.KNW"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q190552/",
            "model": {
                "registry_id": "vr.tr.hindu-calendar",
                "name": "Hindu calendar",
                "purpose": "Enable an AI agent to identify a Hindu calendrical tradition, interpret its dates, assess the evidence behind calculations, and determine when conversion or observance advice is justified.",
                "definition": "The Hindu calendar is a family of traditional Indian calendrical systems, principally lunisolar and solar, that organize dates and religious observances through rules relating lunar phases, the Sun's apparent motion and locally transmitted calendrical conventions.",
                "scope_statement": "This model owns the Hindu calendar as a family of related calendrical systems and the tradition-specific rules needed to interpret particular implementations, rather than assuming a single uniform calendar.",
                "in_scope": [
                    "Identification of regional, religious, and computational calendar traditions",
                    "Solar and lunisolar year, month, and date structures",
                    "Panchanga elements and their assignment to local dates",
                    "Epochs, year numbering, intercalation, and exceptional date sequences",
                    "Location-dependent date conversion and calendrical observance rules",
                    "Evidence, authority, and uncertainty attached to calendar implementations"
                ],
                "out_of_scope": [
                    "Hinduism as a religion and its complete doctrinal or ritual systems",
                    "Astrological predictions and interpretations of personal destiny",
                    "Astronomy as an independent scientific discipline",
                    "The Indian national civil calendar as a separately governed calendar system",
                    "Almanac publications as physical or digital publishing products",
                    "Festival narratives, ritual procedures, and administrative holiday declarations"
                ],
                "distinguishing_features": [
                    "A usable instance identifies a particular tradition and rule set; the label Hindu calendar alone does not determine a unique date conversion.",
                    "Solar and lunisolar implementations must be distinguished before interpreting month boundaries or year structure.",
                    "A tithi denotes a lunar phase interval and must not automatically be treated as a midnight-to-midnight civil day.",
                    "Month names and year numbers require a month convention, era, and year-start rule before dates can be compared.",
                    "An astronomical transition, its assignment to a local calendar day, and a festival's observance date are separate determinations."
                ],
                "characteristics": [
                    {
                        "name": "Calendar tradition",
                        "kind": "category",
                        "unit_or_values": "Named regional, community, or institutional tradition; unresolved if unspecified",
                        "why_it_matters": "Selects the conventions that make dates and observances interpretable."
                    },
                    {
                        "name": "Calendar basis",
                        "kind": "category",
                        "unit_or_values": "Solar or lunisolar, with any supplementary lunar or solar reckoning identified",
                        "why_it_matters": "Determines how months and years are constructed."
                    },
                    {
                        "name": "Lunar month convention",
                        "kind": "category",
                        "unit_or_values": "Amanta, purnimanta, another documented convention, not applicable, or unresolved",
                        "why_it_matters": "Prevents a lunar phase or fortnight from being assigned an incorrect month label."
                    },
                    {
                        "name": "Era and year-start convention",
                        "kind": "relation",
                        "unit_or_values": "Reference to a named era, its epoch, numbering convention, and year boundary",
                        "why_it_matters": "A year number is ambiguous without the rules that give it meaning."
                    },
                    {
                        "name": "Reference locality",
                        "kind": "relation",
                        "unit_or_values": "Place with latitude and longitude in degrees, elevation where relevant, and applicable time standard",
                        "why_it_matters": "Local sunrise and other reference events can affect date and observance assignments."
                    },
                    {
                        "name": "Astronomical calculation convention",
                        "kind": "relation",
                        "unit_or_values": "Named method, parameters, reference system, and version; ayanamsha where applicable",
                        "why_it_matters": "Different computational conventions can place transitions at different times."
                    },
                    {
                        "name": "Panchanga components",
                        "kind": "category",
                        "unit_or_values": "Tithi, vara, nakshatra, yoga, and karana, with labels and validity intervals",
                        "why_it_matters": "Records the calendrical components without conflating their different boundaries."
                    },
                    {
                        "name": "Month adjustment status",
                        "kind": "state",
                        "unit_or_values": "Ordinary, adhika, kshaya-related, not applicable, or unresolved under the selected rules",
                        "why_it_matters": "Exceptional month structures affect naming, sequence, and conversion."
                    },
                    {
                        "name": "Transition instant",
                        "kind": "measurement",
                        "unit_or_values": "Timestamp with time scale, precision, and uncertainty",
                        "why_it_matters": "Supports boundary-sensitive decisions and comparison between calculations."
                    },
                    {
                        "name": "Interpretation status",
                        "kind": "state",
                        "unit_or_values": "Fully specified, ambiguous, disputed, unsupported, or outside validated range",
                        "why_it_matters": "Determines whether an agent can return one answer, present alternatives, or request missing context."
                    }
                ],
                "affordances": [
                    "Identify the tradition and missing context behind a supplied Hindu calendar date.",
                    "Explain a date's year, month, fortnight, tithi, and other applicable components.",
                    "Convert a sufficiently specified date to candidate civil dates or time intervals while preserving ambiguity.",
                    "Generate or compare panchanga components for a stated locality and calculation method.",
                    "Evaluate a documented observance rule and explain why competing calendars assign different dates.",
                    "Flag unsupported historical conversions, boundary-sensitive results, and unresolved authority conflicts."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "tradition-and-calendar-identity",
                        "name": "Tradition and calendar identity",
                        "description": "Establishes which Hindu calendrical system is being represented and how its names are used.",
                        "rationale": "The registry entry covers a family of systems whose differences must remain explicit within one model.",
                        "layers": [
                            {
                                "id": "tradition-profile",
                                "name": "Tradition profile",
                                "description": "Identifies the community, region, and calendar basis relevant to an interpretation.",
                                "findings": [
                                    {
                                        "id": "identify-operative-tradition",
                                        "name": "Identify the operative tradition",
                                        "description": "Record a named tradition and its solar or lunisolar basis before applying date rules.",
                                        "questions": [
                                            {
                                                "text": "Which regional or community tradition does this calendar instance implement, and what source identifies it?",
                                                "kind": "provenance",
                                                "id": "identify-operative-tradition-q01"
                                            },
                                            {
                                                "text": "Does this implementation use solar months, lunisolar months, or different reckonings for different purposes?",
                                                "kind": "definition",
                                                "id": "identify-operative-tradition-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "terminology-and-neighbours",
                                "name": "Terminology and neighbouring systems",
                                "description": "Separates equivalent labels from substantive differences in calendrical rules.",
                                "findings": [
                                    {
                                        "id": "resolve-labels-without-collapsing-rules",
                                        "name": "Resolve labels without collapsing rules",
                                        "description": "Associate language-specific names and transliterations with their meanings while distinguishing separately governed calendars.",
                                        "questions": [
                                            {
                                                "text": "Which month and panchanga labels are translations or transliterations, and which indicate different conventions?",
                                                "kind": "definition",
                                                "id": "resolve-labels-without-collapsing-rules-q01"
                                            },
                                            {
                                                "text": "What distinguishes this instance from the Indian national civil calendar or another neighbouring calendar that shares terminology?",
                                                "kind": "boundary",
                                                "id": "resolve-labels-without-collapsing-rules-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "years-months-and-adjustments",
                        "name": "Years, months, and adjustments",
                        "description": "Describes the rules that construct and name years and months.",
                        "rationale": "Date labels cannot be interpreted reliably from familiar month names or era numbers alone.",
                        "layers": [
                            {
                                "id": "era-and-year-boundaries",
                                "name": "Era and year boundaries",
                                "description": "Connects year labels to an epoch, counting convention, and calendar boundary.",
                                "findings": [
                                    {
                                        "id": "interpret-year-label",
                                        "name": "Interpret the year label",
                                        "description": "Keep the era and year-start convention explicit, including named year cycles where used.",
                                        "questions": [
                                            {
                                                "text": "Which era and epoch govern the year number, and how are years counted?",
                                                "kind": "definition",
                                                "id": "interpret-year-label-q01"
                                            },
                                            {
                                                "text": "At what calendrical event does the year change, and how are any cyclical year names related to that numbering?",
                                                "kind": "boundary",
                                                "id": "interpret-year-label-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "month-construction",
                                "name": "Month construction",
                                "description": "Defines month boundaries, naming rules, and adjustments to the month sequence.",
                                "findings": [
                                    {
                                        "id": "derive-month-sequence",
                                        "name": "Derive the month sequence",
                                        "description": "Record the solar or lunar boundary convention and the rules for ordinary and exceptional months.",
                                        "questions": [
                                            {
                                                "text": "Which events define a month, and how do amanta or purnimanta conventions affect its name where applicable?",
                                                "kind": "definition",
                                                "id": "derive-month-sequence-q01"
                                            },
                                            {
                                                "text": "Under what documented conditions are adhika or kshaya-related month adjustments recognized and labelled?",
                                                "kind": "boundary",
                                                "id": "derive-month-sequence-q02"
                                            },
                                            {
                                                "text": "How should an agent distinguish an ordinary month from another occurrence bearing the same month name?",
                                                "kind": "action",
                                                "id": "derive-month-sequence-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "panchanga-and-local-day",
                        "name": "Panchanga and local day",
                        "description": "Represents calendrical components as intervals and explains their assignment to local days.",
                        "rationale": "Panchanga transitions and civil day boundaries need not coincide, making locality and assignment rules essential.",
                        "layers": [
                            {
                                "id": "component-intervals",
                                "name": "Component intervals",
                                "description": "Defines the five panchanga elements and the transitions relevant to each.",
                                "findings": [
                                    {
                                        "id": "record-component-boundaries",
                                        "name": "Record component boundaries",
                                        "description": "Represent tithi, vara, nakshatra, yoga, and karana according to their own rules rather than one shared daily timestamp.",
                                        "questions": [
                                            {
                                                "text": "How does the selected tradition define and label each of the five panchanga elements?",
                                                "kind": "definition",
                                                "id": "record-component-boundaries-q01"
                                            },
                                            {
                                                "text": "What are each component's start and end instants, and in which time scale are they expressed?",
                                                "kind": "measurement",
                                                "id": "record-component-boundaries-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "day-assignment",
                                "name": "Day assignment",
                                "description": "Relates component intervals to sunrise, other reference events, and civil date labels.",
                                "findings": [
                                    {
                                        "id": "assign-tithi-to-local-date",
                                        "name": "Assign tithi to a local date",
                                        "description": "Make the reference event explicit and preserve cases where a tithi spans successive reference events or none.",
                                        "questions": [
                                            {
                                                "text": "Which locality and reference event determine the tithi displayed for a calendar day?",
                                                "kind": "boundary",
                                                "id": "assign-tithi-to-local-date-q01"
                                            },
                                            {
                                                "text": "How are tithis that span two successive daily reference events or occur between them represented?",
                                                "kind": "action",
                                                "id": "assign-tithi-to-local-date-q02"
                                            },
                                            {
                                                "text": "What rule applies when the expected reference event, such as sunrise, is unavailable at the selected location?",
                                                "kind": "boundary",
                                                "id": "assign-tithi-to-local-date-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "calculation-and-conversion",
                        "name": "Calculation and conversion",
                        "description": "Makes computed dates reproducible and defines the limits of conversion.",
                        "rationale": "A plausible date is insufficient unless its assumptions, method, and ambiguity can be inspected.",
                        "layers": [
                            {
                                "id": "computational-conventions",
                                "name": "Computational conventions",
                                "description": "Identifies the astronomical method and parameters used to calculate calendar transitions.",
                                "findings": [
                                    {
                                        "id": "declare-calculation-basis",
                                        "name": "Declare the calculation basis",
                                        "description": "Record the computational tradition, astronomical inputs, and relevant reference-frame choices.",
                                        "questions": [
                                            {
                                                "text": "Which documented algorithm, tables, or ephemeris produced the calendar, and which version was used?",
                                                "kind": "provenance",
                                                "id": "declare-calculation-basis-q01"
                                            },
                                            {
                                                "text": "Which longitude conventions, ayanamsha where applicable, and time assumptions affect the calculated boundaries?",
                                                "kind": "measurement",
                                                "id": "declare-calculation-basis-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "conversion-validity",
                                "name": "Conversion validity",
                                "description": "Specifies what a conversion can resolve and when multiple answers or an explicit limitation are required.",
                                "findings": [
                                    {
                                        "id": "preserve-conversion-ambiguity",
                                        "name": "Preserve conversion ambiguity",
                                        "description": "Return a point, interval, or set of candidate civil dates according to the supplied information and supported historical range.",
                                        "questions": [
                                            {
                                                "text": "Are the tradition, era, month convention, adjustment status, locality, and target civil calendar sufficiently specified?",
                                                "kind": "boundary",
                                                "id": "preserve-conversion-ambiguity-q01"
                                            },
                                            {
                                                "text": "Should conversion return one civil date, multiple candidates, or a time interval for the supplied date expression?",
                                                "kind": "action",
                                                "id": "preserve-conversion-ambiguity-q02"
                                            },
                                            {
                                                "text": "For which historical periods has this implementation been checked against evidence, and where is it only a backward projection of selected rules?",
                                                "kind": "provenance",
                                                "id": "preserve-conversion-ambiguity-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "observance-rules-and-authority",
                        "name": "Observance rules and authority",
                        "description": "Connects calendar calculations to documented observance decisions and their sources.",
                        "rationale": "Astronomical agreement alone does not settle a festival date when communities apply different selection rules.",
                        "layers": [
                            {
                                "id": "observance-date-selection",
                                "name": "Observance date selection",
                                "description": "Records the calendrical conditions that select an observance day without modelling the ritual itself.",
                                "findings": [
                                    {
                                        "id": "apply-observance-selection-rule",
                                        "name": "Apply an observance selection rule",
                                        "description": "Link the required tithi or other components to the relevant time window and precedence rules.",
                                        "questions": [
                                            {
                                                "text": "Which component must prevail at which reference event or time window for this observance?",
                                                "kind": "definition",
                                                "id": "apply-observance-selection-rule-q01"
                                            },
                                            {
                                                "text": "What documented precedence rule resolves cases in which two days qualify or no day satisfies the usual condition?",
                                                "kind": "action",
                                                "id": "apply-observance-selection-rule-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "authority-and-disagreement",
                                "name": "Authority and disagreement",
                                "description": "Preserves the scope and provenance of competing calendar determinations.",
                                "findings": [
                                    {
                                        "id": "trace-and-explain-date-disagreement",
                                        "name": "Trace and explain date disagreement",
                                        "description": "Attribute each result to its source and distinguish computational differences from different observance conventions.",
                                        "questions": [
                                            {
                                                "text": "Which almanac, institution, text, or community authority supports this determination, for which locality and year?",
                                                "kind": "provenance",
                                                "id": "trace-and-explain-date-disagreement-q01"
                                            },
                                            {
                                                "text": "Does a disagreement arise from astronomical calculation, locality, month naming, or an observance selection rule?",
                                                "kind": "boundary",
                                                "id": "trace-and-explain-date-disagreement-q02"
                                            },
                                            {
                                                "text": "When sources disagree, should the agent present attributed alternatives or apply a user-specified authority?",
                                                "kind": "action",
                                                "id": "trace-and-explain-date-disagreement-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "This entry covers a family of calendar systems, not a discipline or one universally standardized calendar.",
                                            "Regional classifications are broad generalizations; precise dates require the specific calendar, locality, era and calculation tradition.",
                                            "No sources were consulted; numerical values are recalled approximations or conventional angular divisions."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of Hindu calendar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Amanta lunisolar calendars, whose months end at new moon",
                                            "Purnimanta lunisolar calendars, whose months end at full moon",
                                            "Solar calendars, whose months follow the Sun's passage through zodiacal signs"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of Hindu calendar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Determining dates of Hindu festivals, fasts and rituals",
                                            "Preparing panchangas, traditional almanacs of calendrical and astronomical information",
                                            "Selecting auspicious times for ceremonies",
                                            "Recording and interpreting dates in historical documents and inscriptions",
                                            "Organizing regional new-year celebrations and seasonal observances"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of Hindu calendar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "quantity": "Tithi, or lunar day",
                                                "typical_range": "Each spans 12 degrees of increase in Moon-Sun elongation; its elapsed duration varies",
                                                "unit": "degree"
                                            },
                                            {
                                                "quantity": "Mean synodic lunar month",
                                                "typical_range": "Approximately 29.53",
                                                "unit": "day"
                                            },
                                            {
                                                "quantity": "Lunar months in a lunisolar year",
                                                "typical_range": "Usually 12; 13 when an intercalary month is included",
                                                "unit": "month"
                                            },
                                            {
                                                "quantity": "Nakshatra sector in the common equal-division scheme",
                                                "typical_range": "13 degrees 20 minutes, giving 27 sectors around the ecliptic",
                                                "unit": "angular degree"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of Hindu calendar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Treating the Hindu calendar as one uniform system produces incorrect date conversions.",
                                            "Converting a historical date without identifying its era, regional calendar and month convention can yield an incorrect year or day.",
                                            "A tithi is not a fixed 24-hour civil day; it may be absent at sunrise or occur at two successive sunrises.",
                                            "Festival dates can differ with location, astronomical calculation and rules about which tithi must prevail at a specified time.",
                                            "Ignoring intercalary months, rare omitted months or differing solar reference conventions can corrupt calendar calculations."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of Hindu calendar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Amanta month reckoning is widespread in western and southern India, while purnimanta reckoning is widespread in northern India; local exceptions matter.",
                                            "Tamil and Malayalam traditions prominently use solar calendars, while many other Hindu traditions use lunisolar calendars.",
                                            "Era numbering, year beginnings, month names and observance rules vary among regions and communities."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of Hindu calendar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "Indian national calendar",
                                                "difference": "The standardized Saka-based civil calendar is distinct from the diverse traditional calendars used for Hindu observances."
                                            },
                                            {
                                                "name": "Panchanga",
                                                "difference": "A panchanga is an almanac presenting calendrical elements and related information; a calendar is the underlying system for organizing dates."
                                            },
                                            {
                                                "name": "Jyotisha",
                                                "difference": "Jyotisha is a broader tradition encompassing astral knowledge and astrology; Hindu calendars are systems of time reckoning informed by parts of that tradition."
                                            },
                                            {
                                                "name": "Gregorian calendar",
                                                "difference": "The Gregorian calendar uses fixed month lengths and leap-year rules to approximate the tropical year, whereas Hindu calendars employ differing solar or lunisolar astronomical conventions."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of Hindu calendar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Which regional and community traditions must be researched first to represent the registry entry's breadth without treating one implementation as universal?",
                "Which primary sources establish the exact month adjustment, year-start, and observance rules for each included tradition?",
                "Which astronomical methods and parameter choices are used by the selected calendar authorities, and how large are their boundary differences?",
                "What historical evidence supports conversions across changes in local calendar practice, era usage, and civil timekeeping?",
                "Which authorities document rules for diaspora locations, absent sunrise, and disputes over observance dates?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 17,
                "questions": 31
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "discipline or field of knowledge",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a Hindu calendar, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to identify a Hindu calendrical tradition, interpret its dates, assess the evidence behind calculations, and determine when conversion or observance advice is justified.",
            "characteristics": {
                "substance": "information",
                "origin": "conceptual",
                "agency": "inert"
            },
            "whatYouCanDoWithIt": [
                "read and interpreted"
            ],
            "distinguishingFeatures": [
                "Described in 67 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a Hindu calendar, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "content that has to be carried by something else",
            "physicalCharacter": [
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "read it and act on what it says"
            ],
            "howItIsRecognised": [],
            "relatedModels": [],
            "standing": "Described in 67 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one Hindu calendar from another, and a Hindu calendar from things that resemble it.",
                        "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.",
                        "layers": [
                            {
                                "id": "naming-and-identifiers",
                                "name": "Names and identifiers",
                                "description": "The names this thing goes by and the identifiers that survive translation and time.",
                                "findings": [
                                    {
                                        "id": "preferred-name-and-aliases",
                                        "name": "Preferred name, aliases and local names",
                                        "description": "Which name to use, which names mean the same thing, and which merely sound similar.",
                                        "questions": [
                                            {
                                                "id": "preferred-name-and-aliases-q01",
                                                "text": "What identifies and describes the name of a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q02",
                                                "text": "Who or what asserted this about the name of a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q03",
                                                "text": "What may an agent decide or do once the name of a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "stable-identifiers",
                                        "name": "Stable identifiers and external keys",
                                        "description": "Identifiers that keep pointing at this kind of thing across systems and languages.",
                                        "questions": [
                                            {
                                                "id": "stable-identifiers-q01",
                                                "text": "What identifies and describes an identifier for a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q02",
                                                "text": "Who or what asserted this about an identifier for a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q03",
                                                "text": "What may an agent decide or do once an identifier for a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "classification-and-granularity",
                                "name": "Classification and granularity",
                                "description": "Where a Hindu calendar sits among kinds, and how finely a task needs to cut it.",
                                "findings": [
                                    {
                                        "id": "kind-and-parents",
                                        "name": "Kind, parents and neighbouring kinds",
                                        "description": "The classes this thing belongs to and the ones it is next to.",
                                        "questions": [
                                            {
                                                "id": "kind-and-parents-q01",
                                                "text": "What identifies and describes the kind of a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q02",
                                                "text": "Who or what asserted this about the kind of a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q03",
                                                "text": "What may an agent decide or do once the kind of a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "distinguishing-features",
                                        "name": "Distinguishing features",
                                        "description": "What separates a Hindu calendar from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q02",
                                                "text": "Who or what asserted this about what distinguishes a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q03",
                                                "text": "What may an agent decide or do once what distinguishes a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "state-and-lifecycle",
                        "name": "State and lifecycle",
                        "description": "The states a Hindu calendar passes through and the events that move it between them.",
                        "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.",
                        "layers": [
                            {
                                "id": "lifecycle-stages",
                                "name": "Lifecycle stages",
                                "description": "From coming into existence to ceasing to be one of these.",
                                "findings": [
                                    {
                                        "id": "stages-and-transitions",
                                        "name": "Stages and transitions",
                                        "description": "The stages worth naming and what moves a Hindu calendar between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q02",
                                                "text": "Who or what asserted this about the lifecycle of a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q03",
                                                "text": "What may an agent decide or do once the lifecycle of a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "observations-and-status",
                                "name": "Observations and current status",
                                "description": "What is observed about a Hindu calendar, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a Hindu calendar is recorded so that it can be superseded rather than overwritten.",
                                        "questions": [
                                            {
                                                "id": "observation-record-q01",
                                                "text": "What identifies and describes an observation of a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q02",
                                                "text": "Who or what asserted this about an observation of a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q03",
                                                "text": "What may an agent decide or do once an observation of a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "content-and-access",
                        "name": "Content, encoding and access",
                        "description": "What a Hindu calendar says, how it is encoded and who may read it.",
                        "rationale": "An informational thing carries content that can be copied, versioned and withheld, none of which its physical carrier explains.",
                        "layers": [
                            {
                                "id": "content-and-encoding",
                                "name": "Content and encoding",
                                "description": "The content itself, its format and its language.",
                                "findings": [
                                    {
                                        "id": "content-and-format",
                                        "name": "Content, format and language",
                                        "description": "What a Hindu calendar contains and in what form it is held.",
                                        "questions": [
                                            {
                                                "id": "content-and-format-q01",
                                                "text": "What identifies and describes the content of a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "content-and-format-q02",
                                                "text": "Who or what asserted this about the content of a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "content-and-format-q03",
                                                "text": "What may an agent decide or do once the content of a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "access-and-rights",
                                "name": "Access, rights and retention",
                                "description": "Who may read, copy or change it, and for how long it is kept.",
                                "findings": [
                                    {
                                        "id": "access-rules",
                                        "name": "Access rules and retention",
                                        "description": "The permissions attached to a Hindu calendar and the period it survives.",
                                        "questions": [
                                            {
                                                "id": "access-rules-q01",
                                                "text": "What identifies and describes access to a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "access-rules-q02",
                                                "text": "Who or what asserted this about access to a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "access-rules-q03",
                                                "text": "What may an agent decide or do once access to a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "subject-and-method",
                        "name": "Subject matter and method",
                        "description": "What Hindu calendar studies and how it establishes anything.",
                        "rationale": "A field is identified by its questions and its methods, and those are what distinguish it from the fields next to it.",
                        "layers": [
                            {
                                "id": "subject",
                                "name": "Subject matter",
                                "description": "The questions it takes as its own.",
                                "findings": [
                                    {
                                        "id": "subject-record",
                                        "name": "Questions and objects of study",
                                        "description": "What it is about, stated so a neighbouring field can be told apart.",
                                        "questions": [
                                            {
                                                "id": "subject-record-q01",
                                                "text": "What questions and objects does Hindu calendar take as its own?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "subject-record-q02",
                                                "text": "Which questions does it share with a neighbouring field, and who claims them?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "method",
                                "name": "Method and evidence",
                                "description": "How claims are established and what counts as evidence.",
                                "findings": [
                                    {
                                        "id": "method-record",
                                        "name": "Methods and standards of evidence",
                                        "description": "The methods used and what they are taken to establish.",
                                        "questions": [
                                            {
                                                "id": "method-record-q01",
                                                "text": "By what methods does Hindu calendar establish claims, and what counts as sufficient evidence?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "method-record-q02",
                                                "text": "What kind of claim can this field not settle, and where should an agent look instead?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "institutions-and-classification",
                        "name": "Institutions and classification",
                        "description": "Where Hindu calendar is practised and how catalogues place it.",
                        "rationale": "The institutional footprint is the evidence that a field exists as a field rather than as a topic.",
                        "layers": [
                            {
                                "id": "institutions",
                                "name": "Institutional markers",
                                "description": "Societies, journals, degrees and departments.",
                                "findings": [
                                    {
                                        "id": "institution-record",
                                        "name": "Bodies and venues",
                                        "description": "Where the field organises itself.",
                                        "questions": [
                                            {
                                                "id": "institution-record-q01",
                                                "text": "Which societies, journals or degrees mark Hindu calendar as an established field?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "institution-record-q02",
                                                "text": "What would show that it is emerging or dissolving rather than established?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "classification",
                                "name": "Classification schemes",
                                "description": "Where library and research classifications put it.",
                                "findings": [
                                    {
                                        "id": "classification-record",
                                        "name": "Codes and their disagreements",
                                        "description": "The classification codes that place it, and where they differ.",
                                        "questions": [
                                            {
                                                "id": "classification-record-q01",
                                                "text": "Which classification schemes place Hindu calendar, under what codes?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "classification-record-q02",
                                                "text": "Where do those schemes disagree about its scope?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a Hindu calendar came from and when it held.",
                        "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.",
                        "layers": [
                            {
                                "id": "source-and-authority",
                                "name": "Source and authority",
                                "description": "Who said it, on what evidence, and how strongly.",
                                "findings": [
                                    {
                                        "id": "claim-provenance",
                                        "name": "Claim provenance and confidence",
                                        "description": "The authority behind each claim about a Hindu calendar and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q02",
                                                "text": "Who or what asserted this about a claim about a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q03",
                                                "text": "What may an agent decide or do once a claim about a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "time-and-versions",
                                "name": "Time, versions and supersession",
                                "description": "When a claim was true, when it was learnt, and what replaced it.",
                                "findings": [
                                    {
                                        "id": "validity-and-supersession",
                                        "name": "Validity period and supersession",
                                        "description": "How an old claim about a Hindu calendar is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a Hindu calendar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q02",
                                                "text": "Who or what asserted this about the validity of a claim about a Hindu calendar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q03",
                                                "text": "What may an agent decide or do once the validity of a claim about a Hindu calendar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 6,
                "layers": 12,
                "findings": 14,
                "questions": 38
            }
        }
    }
}