{
    "model": {
        "rank": 2930,
        "code": "thing-q122653",
        "model_id": "vr.tr.numeral-system",
        "name": "numeral system",
        "purpose": "Enable an AI agent to recognise a numeral system, assess whether a representation is valid and interpretable under its rules, and determine which reading, writing, comparison or conversion actions are justified.",
        "family": "Thing Registry",
        "category": "Information and virtual systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "INF",
        "domain": "INF.MED",
        "industry": "",
        "version": "",
        "url": "/models/thing/q122653/",
        "tier": 2,
        "score": 94,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "non-positional numeral system",
                "positional numeral system",
                "residue number system",
                "bijective numeration",
                "redundant binary representation",
                "negative base",
                "non-standard positional numeral system",
                "complex-base system",
                "non-integer representation"
            ],
            "aliasCount": 9,
            "merged": 9,
            "knownIn": 94,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q122653",
                "url": "https://www.wikidata.org/wiki/Q122653",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-07T13:44:01Z",
                "providers": [
                    "Codex",
                    "Grok"
                ],
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "usd": 0.00530026,
                        "turns": 1,
                        "seconds": 16.3,
                        "error": null
                    },
                    "codex": {
                        "seconds": 64,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07c1b-978d-7022-8ac1-b2a9e0634deb\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: numeral system\nRegistry id: vr.tr.numeral-system\nPlane / domain: INF / INF.MED\nRegistry definition: (none recorded)\nNames folded into this entry: (no"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q122653",
                "registryId": "vr.tr.numeral-system",
                "name": "numeral system",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "INF.MED"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q122653/",
            "model": {
                "registry_id": "vr.tr.numeral-system",
                "name": "numeral system",
                "purpose": "Enable an AI agent to recognise a numeral system, assess whether a representation is valid and interpretable under its rules, and determine which reading, writing, comparison or conversion actions are justified.",
                "definition": "A numeral system is a conventional mapping from written or spoken numeral tokens to abstract numbers, together with the composition rules that determine how those tokens combine to denote a value.",
                "scope_statement": "This model owns the conventions that make signs and their arrangement representations of numbers, including their interpretation, representational limits, variants and conditions for reliable use.",
                "in_scope": [
                    "Numeral signs, their numerical roles and accepted variants",
                    "Composition rules, including positional, additive, subtractive or combined mechanisms",
                    "Interpretation of numerals and the range of numbers expressible",
                    "Validity, ambiguity and preferred representation conventions",
                    "Conditions for reading, generating, normalising and converting numerals"
                ],
                "out_of_scope": [
                    "Numbers and number structures independently of their representation",
                    "General writing systems, typography and character encoding standards",
                    "Natural-language number names and grammatical number",
                    "Measurement units, currencies and quantity semantics",
                    "Arithmetic algorithms and calculating devices beyond their numeral interpretation requirements"
                ],
                "distinguishing_features": [
                    "It supplies conventions connecting signs and arrangements to numbers; a number itself is independent of those conventions.",
                    "It governs numerical representation; a font or character encoding alone does not determine numerical value.",
                    "Its scope is expressing numbers; a mathematical notation may additionally express operations, relations and propositions.",
                    "A string using numeral signs may instead be an identifier: preserving leading zeros or forbidding arithmetic can indicate identifier use rather than a numerical interpretation.",
                    "A shared digit inventory does not establish a shared system: positional weights, grouping rules or value assignments must also agree."
                ],
                "characteristics": [
                    {
                        "name": "Representation mechanism",
                        "kind": "category",
                        "unit_or_values": "Positional, additive, subtractive, multiplicative-additive, other documented mechanism, or combination",
                        "why_it_matters": "Determines how component signs contribute to the represented number."
                    },
                    {
                        "name": "Radix or position-weight rule",
                        "kind": "category",
                        "unit_or_values": "Fixed radix with specified value; mixed radix with specified sequence; other weight rule; not applicable; unresolved",
                        "why_it_matters": "Prevents an agent from assuming decimal interpretation or uniform position weights."
                    },
                    {
                        "name": "Sign inventory",
                        "kind": "relation",
                        "unit_or_values": "Links to recognised signs, value assignments, modifiers and accepted visual variants",
                        "why_it_matters": "Supports recognition while distinguishing numerical roles from appearance."
                    },
                    {
                        "name": "Representable number domain",
                        "kind": "category",
                        "unit_or_values": "Explicitly described number classes, bounds and exclusions",
                        "why_it_matters": "Establishes whether a requested number can be expressed under the selected conventions."
                    },
                    {
                        "name": "Zero convention",
                        "kind": "category",
                        "unit_or_values": "Zero numeral, positional placeholder, both, neither, or context-dependent",
                        "why_it_matters": "Distinguishes representing zero from preserving an empty position."
                    },
                    {
                        "name": "Interpretation determinacy",
                        "kind": "state",
                        "unit_or_values": "Unique under selected conventions; context-dependent; ambiguous; unresolved",
                        "why_it_matters": "Determines whether automatic reading is justified."
                    },
                    {
                        "name": "Representation preference",
                        "kind": "state",
                        "unit_or_values": "Unique normal form; multiple preferred forms; accepted forms without preference; unresolved",
                        "why_it_matters": "Controls whether rewriting an equivalent numeral is warranted."
                    },
                    {
                        "name": "Applicable convention profile",
                        "kind": "relation",
                        "unit_or_values": "Links to documented historical, regional, disciplinary or implementation conventions",
                        "why_it_matters": "Keeps an agent from combining incompatible rules."
                    }
                ],
                "affordances": [
                    "Identify candidate numeral systems for a representation and request context when identification is ambiguous.",
                    "Validate a numeral against a selected convention profile and explain rule violations.",
                    "Interpret a numeral or generate a representation for a supported number.",
                    "Compare numerical values while preserving distinctions between written forms.",
                    "Normalise or convert a numeral when equivalence is established, recording any approximation or lost representational information."
                ]
            },
            "sources": [
                {
                    "id": "src-wp-numeral-system",
                    "title": "Numeral system",
                    "url": "https://en.wikipedia.org/wiki/Numeral_system",
                    "what_it_supports": "Core definition distinguishing numeral systems from numbers, and the main practical kinds (positional, additive, hybrid, unary).",
                    "url_status": "live"
                }
            ],
            "structure": {
                "bundles": [
                    {
                        "id": "system-identity-and-variants",
                        "name": "System identity and variants",
                        "description": "Establishes which numerical representation conventions the agent is applying.",
                        "rationale": "The same signs can receive different interpretations across systems and convention profiles.",
                        "layers": [
                            {
                                "id": "identifying-conventions",
                                "name": "Identifying conventions",
                                "description": "Records the features that distinguish this system from plausible alternatives.",
                                "findings": [
                                    {
                                        "id": "system-recognition",
                                        "name": "System recognition",
                                        "description": "Records diagnostic combinations of signs, composition rules and contextual evidence.",
                                        "questions": [
                                            {
                                                "text": "Which combination of signs and composition rules identifies this numeral system rather than a look-alike?",
                                                "kind": "definition",
                                                "id": "system-recognition-q01"
                                            },
                                            {
                                                "text": "What additional context is required when a numeral is valid in several systems?",
                                                "kind": "boundary",
                                                "id": "system-recognition-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "convention-profiles",
                                "name": "Convention profiles",
                                "description": "Separates documented variants without assuming they are independent registry things.",
                                "findings": [
                                    {
                                        "id": "profile-applicability",
                                        "name": "Profile applicability",
                                        "description": "Records where particular numerical conventions apply and the evidence supporting that selection.",
                                        "questions": [
                                            {
                                                "text": "Which sources establish the rules of each historical, regional or specialised profile?",
                                                "kind": "provenance",
                                                "id": "profile-applicability-q01"
                                            },
                                            {
                                                "text": "Which differences change numerical interpretation, and which merely change the written appearance?",
                                                "kind": "boundary",
                                                "id": "profile-applicability-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "signs-and-composition",
                        "name": "Signs and composition",
                        "description": "Captures the elements of numerals and the rules for combining them.",
                        "rationale": "Recognising individual symbols is insufficient to determine whether their arrangement forms a numeral.",
                        "layers": [
                            {
                                "id": "numerical-signs",
                                "name": "Numerical signs",
                                "description": "Distinguishes value-bearing signs, placeholders, modifiers and separators.",
                                "findings": [
                                    {
                                        "id": "sign-roles",
                                        "name": "Sign roles",
                                        "description": "Records each recognised sign's contribution and its dependence on surrounding signs.",
                                        "questions": [
                                            {
                                                "text": "Which signs carry values, mark empty positions, modify other signs or separate numeral components?",
                                                "kind": "definition",
                                                "id": "sign-roles-q01"
                                            },
                                            {
                                                "text": "Which visually similar or alternate signs may be treated as equivalent under this profile?",
                                                "kind": "boundary",
                                                "id": "sign-roles-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "assembly-rules",
                                "name": "Assembly rules",
                                "description": "Records how order, repetition, grouping and spatial arrangement construct a numeral.",
                                "findings": [
                                    {
                                        "id": "numeral-formation",
                                        "name": "Numeral formation",
                                        "description": "Makes permitted combinations and structurally meaningful layout explicit.",
                                        "questions": [
                                            {
                                                "text": "What ordering, repetition, grouping and spatial rules determine whether signs form an admissible numeral?",
                                                "kind": "definition",
                                                "id": "numeral-formation-q01"
                                            },
                                            {
                                                "text": "Which changes to spacing, orientation or layout preserve a numeral, and which change or destroy its interpretation?",
                                                "kind": "boundary",
                                                "id": "numeral-formation-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "value-and-expressibility",
                        "name": "Value and expressibility",
                        "description": "Connects admissible numerals to numbers and establishes representation limits.",
                        "rationale": "An agent must know both how a numeral obtains its value and whether a requested value is expressible.",
                        "layers": [
                            {
                                "id": "evaluation-rules",
                                "name": "Evaluation rules",
                                "description": "Records how signs, positions and modifiers jointly determine numerical value.",
                                "findings": [
                                    {
                                        "id": "value-assignment",
                                        "name": "Value assignment",
                                        "description": "Specifies the applicable interpretation mechanism without assuming a positional system.",
                                        "questions": [
                                            {
                                                "text": "How do sign values combine through positional weights, addition, subtraction, multiplication or other documented rules?",
                                                "kind": "definition",
                                                "id": "value-assignment-q01"
                                            },
                                            {
                                                "text": "If position contributes value, what radix or weight sequence applies and how is the reference position established?",
                                                "kind": "definition",
                                                "id": "value-assignment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "representation-domain",
                                "name": "Representation domain",
                                "description": "Records which numbers can be expressed and which extensions are required.",
                                "findings": [
                                    {
                                        "id": "expressibility-limits",
                                        "name": "Expressibility limits",
                                        "description": "Distinguishes core capabilities from optional conventions for zero, signs, fractions and extended forms.",
                                        "questions": [
                                            {
                                                "text": "Can the selected profile express zero, negative numbers and non-integers, and which rules or extensions enable each?",
                                                "kind": "boundary",
                                                "id": "expressibility-limits-q01"
                                            },
                                            {
                                                "text": "Which values have exact finite representations, and what bounds or non-finite representation conventions apply?",
                                                "kind": "boundary",
                                                "id": "expressibility-limits-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "validity-and-equivalence",
                        "name": "Validity and equivalence",
                        "description": "Supports judgments about admissibility, ambiguity and alternative forms of the same number.",
                        "rationale": "Readable, valid and preferred numerals need not be the same set.",
                        "layers": [
                            {
                                "id": "interpretation-status",
                                "name": "Interpretation status",
                                "description": "Separates rule compliance from an agent's ability to infer an intended value.",
                                "findings": [
                                    {
                                        "id": "validity-and-ambiguity",
                                        "name": "Validity and ambiguity",
                                        "description": "Records how to assess malformed, incomplete or multiply interpretable representations.",
                                        "questions": [
                                            {
                                                "text": "Which rule violations make a numeral invalid even when its intended value appears recoverable?",
                                                "kind": "boundary",
                                                "id": "validity-and-ambiguity-q01"
                                            },
                                            {
                                                "text": "When a representation is incomplete or admits multiple readings, what evidence must an agent obtain before assigning a value?",
                                                "kind": "action",
                                                "id": "validity-and-ambiguity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "equivalent-forms",
                                "name": "Equivalent forms",
                                "description": "Records value equivalence and any documented preference among alternate numerals.",
                                "findings": [
                                    {
                                        "id": "normalisation-permission",
                                        "name": "Normalisation permission",
                                        "description": "Determines when a numeral can be rewritten while preserving its value and relevant source information.",
                                        "questions": [
                                            {
                                                "text": "Which distinct admissible numerals represent the same number, and is a preferred form documented?",
                                                "kind": "definition",
                                                "id": "normalisation-permission-q01"
                                            },
                                            {
                                                "text": "When may an agent normalise leading placeholders, repeated signs or alternate constructions, and what original-form information must it retain?",
                                                "kind": "action",
                                                "id": "normalisation-permission-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "reading-writing-and-conversion",
                        "name": "Reading, writing and conversion",
                        "description": "Defines conditions for applying the system to concrete representations.",
                        "rationale": "Successful numerical interpretation does not by itself justify rewriting a source or converting it to another system.",
                        "layers": [
                            {
                                "id": "contextual-use",
                                "name": "Contextual use",
                                "description": "Determines whether a sign sequence is being used numerically and whether an output is suitable for its destination.",
                                "findings": [
                                    {
                                        "id": "use-sensitive-actions",
                                        "name": "Use-sensitive actions",
                                        "description": "Records prerequisites for reading and generating numerals in their actual context.",
                                        "questions": [
                                            {
                                                "text": "What evidence distinguishes a numeral expressing a number from the same signs used as a code, label or identifier?",
                                                "kind": "boundary",
                                                "id": "use-sensitive-actions-q01"
                                            },
                                            {
                                                "text": "Before generating a numeral, which convention profile, representable domain and required layout must the agent establish?",
                                                "kind": "action",
                                                "id": "use-sensitive-actions-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "cross-system-conversion",
                                "name": "Cross-system conversion",
                                "description": "Records whether another numeral system can preserve the interpreted value and relevant representation properties.",
                                "findings": [
                                    {
                                        "id": "conversion-fidelity",
                                        "name": "Conversion fidelity",
                                        "description": "Distinguishes exact value conversion from approximation and loss of written-form information.",
                                        "questions": [
                                            {
                                                "text": "Can the target system express the interpreted number exactly under its permitted representation conventions?",
                                                "kind": "boundary",
                                                "id": "conversion-fidelity-q01"
                                            },
                                            {
                                                "text": "If conversion requires approximation or discards meaningful source-form information, what authorisation and accompanying record are required?",
                                                "kind": "action",
                                                "id": "conversion-fidelity-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "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-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "positional (place-value) systems",
                                            "additive (sign-value) systems",
                                            "hybrid / multiplicative-additive systems",
                                            "unary / tally systems",
                                            "bijective numeration",
                                            "signed-digit / balanced systems",
                                            "factoradic and mixed-radix systems",
                                            "spoken / linguistic numeral systems"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of numeral system this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "With no registry definition recorded, does this entry include spoken, signed and tactile numeral systems, or only written numerical notation?",
                "Which authoritative sources should establish the representation mechanisms and convention profiles covered by the model?",
                "Where should the boundary fall between a numeral system's core rules and extensions for fractions, exponents, repeating forms or special values?",
                "How should the model distinguish a variant of one numeral system from a separate system while respecting registry granularity?",
                "Which documented communities of use recognise preferred forms, tolerate irregular numerals or require preservation of original notation?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 11,
                "questions": 21
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "work, medium or creative form",
            "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 numeral system, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise a numeral system, assess whether a representation is valid and interpretable under its rules, and determine which reading, writing, comparison or conversion actions are justified.",
            "characteristics": {
                "substance": "information",
                "origin": "conceptual",
                "agency": "inert"
            },
            "whatYouCanDoWithIt": [
                "read and interpreted",
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: non-positional numeral system, positional numeral system, residue number system, bijective numeration, redundant binary representation, negative base, non-standard positional numeral system, complex-base system, non-integer representation.",
                "9 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 94 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 numeral system, 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",
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "What is seen is a copy or a performance, not the work. Recognising the work means recognising the content through whatever is carrying it."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "non-positional numeral system",
                        "positional numeral system",
                        "residue number system",
                        "bijective numeration",
                        "redundant binary representation",
                        "negative base",
                        "non-standard positional numeral system",
                        "complex-base system",
                        "non-integer representation"
                    ]
                }
            ],
            "standing": "Described in 94 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 9 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one numeral system from another, and a numeral system 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 numeral system, 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 numeral system, 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 numeral system 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 numeral system, 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 numeral system, 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 numeral system 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 numeral system 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 numeral system, 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 numeral system, 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 numeral system 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 numeral system from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a numeral system, 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 numeral system, 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 numeral system 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 numeral system 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 numeral system between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a numeral system, 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 numeral system, 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 numeral system 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 numeral system, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a numeral system 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 numeral system, 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 numeral system, 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 numeral system 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 numeral system 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 numeral system contains and in what form it is held.",
                                        "questions": [
                                            {
                                                "id": "content-and-format-q01",
                                                "text": "What identifies and describes the content of a numeral system, 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 numeral system, 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 numeral system 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 numeral system and the period it survives.",
                                        "questions": [
                                            {
                                                "id": "access-rules-q01",
                                                "text": "What identifies and describes access to a numeral system, 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 numeral system, 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 numeral system is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "work-and-manifestation",
                        "name": "Work, version and copy",
                        "description": "Which level of numeral system a statement is about.",
                        "rationale": "The work, the edition, the file and the copy in hand are four things; rights and content attach to different ones.",
                        "layers": [
                            {
                                "id": "levels",
                                "name": "Levels of the thing",
                                "description": "Work, expression, manifestation and item, in plain terms.",
                                "findings": [
                                    {
                                        "id": "level-rules",
                                        "name": "What belongs at each level",
                                        "description": "Which facts hold for the work and which only for one copy.",
                                        "questions": [
                                            {
                                                "id": "level-rules-q01",
                                                "text": "For numeral system, which facts belong to the work itself, which to a version, and which to a single copy?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "level-rules-q02",
                                                "text": "What identifier exists at each level, and which one is being cited?",
                                                "kind": "definition"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "versions",
                                "name": "Versions, editions and variants",
                                "description": "How versions differ and which is canonical to whom.",
                                "findings": [
                                    {
                                        "id": "version-record",
                                        "name": "Versions and canonicity",
                                        "description": "Differences that matter and who calls one authoritative.",
                                        "questions": [
                                            {
                                                "id": "version-record-q01",
                                                "text": "Which versions or editions of numeral system exist, and how do they differ substantively?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "version-record-q02",
                                                "text": "Who treats which version as authoritative, and for what purpose?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "authorship-and-rights",
                        "name": "Authorship, rights and permitted use",
                        "description": "Who made numeral system and what may be done with it.",
                        "rationale": "Rights are jurisdictional, time-limited and attached to a level, and an agent that ignores that will copy what it may not.",
                        "layers": [
                            {
                                "id": "authorship",
                                "name": "Authorship and contribution",
                                "description": "Who contributed what, and in what capacity.",
                                "findings": [
                                    {
                                        "id": "contribution-record",
                                        "name": "Contributors and roles",
                                        "description": "The people and bodies behind it, with their roles.",
                                        "questions": [
                                            {
                                                "id": "contribution-record-q01",
                                                "text": "Who authored or contributed to numeral system, in what roles, and how is that attested?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "contribution-record-q02",
                                                "text": "Where authorship is disputed or anonymous, what is recorded instead?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "rights",
                                "name": "Rights and permissions",
                                "description": "Which rights subsist, where, until when, and what they permit.",
                                "findings": [
                                    {
                                        "id": "rights-record",
                                        "name": "Rights, term and permitted acts",
                                        "description": "The regime in force and what it allows.",
                                        "questions": [
                                            {
                                                "id": "rights-record-q01",
                                                "text": "What rights subsist in numeral system, in which jurisdictions, and until when?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "rights-record-q02",
                                                "text": "Which acts are permitted without further permission, and which must an agent refuse?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a numeral system 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 numeral system and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a numeral system, 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 numeral system, 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 numeral system 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 numeral system is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a numeral system, 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 numeral system, 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 numeral system 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
            }
        }
    }
}