{
    "model": {
        "rank": 6100,
        "code": "thing-q102507",
        "model_id": "vr.tr.cas-registry-number",
        "name": "CAS Registry Number",
        "purpose": "Enable an AI agent to recognise a CAS Registry Number, assess evidence for its substance assignment, and decide whether it can support a particular identification or linking task.",
        "family": "Thing Registry",
        "category": "Information and virtual systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "INF",
        "domain": "INF.MED",
        "industry": "",
        "version": "",
        "url": "/models/thing/q102507/",
        "tier": 2,
        "score": 62,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 62,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q102507",
                "url": "https://www.wikidata.org/wiki/Q102507",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-07T11:32:04Z",
                "providers": [
                    "Codex",
                    "Grok"
                ],
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "usd": 0.00654568,
                        "turns": 1,
                        "seconds": 41.6,
                        "error": null
                    },
                    "codex": {
                        "seconds": 83.9,
                        "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: 01a07ba2-6eed-7be3-9b56-770c811b7d51\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: CAS Registry Number\nRegistry id: vr.tr.cas-registry-number\nPlane / domain: INF / INF.MED\nRegistry definition: (none recorded)\nNames folded into this "
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q102507",
                "registryId": "vr.tr.cas-registry-number",
                "name": "CAS Registry Number",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "INF.MED"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q102507/",
            "model": {
                "registry_id": "vr.tr.cas-registry-number",
                "name": "CAS Registry Number",
                "purpose": "Enable an AI agent to recognise a CAS Registry Number, assess evidence for its substance assignment, and decide whether it can support a particular identification or linking task.",
                "definition": "A CAS Registry Number is a unique numeric identifier assigned by CAS, a division of the American Chemical Society, to a specific chemical substance recorded in the CAS Registry.",
                "scope_statement": "This model owns the identifier represented by vr.tr.cas-registry-number, its representation and validation, evidence of CAS assignment, substance-reference boundaries, and conditions for using its asserted mappings.",
                "in_scope": [
                    "Observed and normalised CAS RN representations",
                    "Format and check-digit assessment",
                    "Evidence connecting the number to a CAS-assigned substance",
                    "Compatibility between the registered substance and a proposed identification target",
                    "Conflicting, historical and cross-system identifier assertions",
                    "Readiness for lookup, linking, correction and reuse"
                ],
                "out_of_scope": [
                    "Chemical structure, composition and properties as independently modelled substance facts",
                    "Physical samples, batches, purity and analytical certificates",
                    "Commercial products, formulations, packaging and stock records",
                    "Toxicology, clinical suitability and handling instructions",
                    "Regulatory authorisations and jurisdiction-specific inventory decisions",
                    "Operation and complete contents of the CAS REGISTRY database"
                ],
                "distinguishing_features": [
                    "A CAS RN is a numeric substance identifier with three hyphen-separated parts and a final check digit; appearance alone does not establish an assignment. [CAS REGISTRY](https://www.cas.org/cas-data/cas-registry)",
                    "Its digits do not encode chemical structure or composition, unlike a structural representation such as SMILES. [CAS FAQ](https://www.cas.org/about/faqs)",
                    "A claim that a number identifies a substance requires assignment evidence, distinguishing a CAS RN from an arbitrary supplier or local inventory code.",
                    "The identification target must be a registered substance, rather than a particular bottle, batch, product listing or document.",
                    "Matching number strings establish identifier agreement; they do not independently establish that two physical materials have matching composition or quality."
                ],
                "characteristics": [
                    {
                        "name": "Observed representation",
                        "kind": "category",
                        "unit_or_values": "Literal source text, including separators and surrounding labels",
                        "why_it_matters": "Preserves evidence before transcription or normalisation changes."
                    },
                    {
                        "name": "Format assessment",
                        "kind": "state",
                        "unit_or_values": "unchecked | conforming | nonconforming | ambiguous",
                        "why_it_matters": "Separates recognisable CAS RN syntax from damaged or mislabelled input."
                    },
                    {
                        "name": "Check-digit assessment",
                        "kind": "state",
                        "unit_or_values": "unchecked | pass | fail | not-computable",
                        "why_it_matters": "Detects some transcription errors without claiming that CAS assigned the number."
                    },
                    {
                        "name": "Assignment evidence",
                        "kind": "state",
                        "unit_or_values": "unverified | CAS-confirmed | secondary-source-only | conflicting",
                        "why_it_matters": "Distinguishes authoritative confirmation from repetition of an assertion."
                    },
                    {
                        "name": "Registered substance referent",
                        "kind": "relation",
                        "unit_or_values": "Link to the substance description supported by the consulted record",
                        "why_it_matters": "Makes explicit what the identifier is asserted to identify."
                    },
                    {
                        "name": "Target match",
                        "kind": "state",
                        "unit_or_values": "unassessed | supported | incompatible | insufficient-detail",
                        "why_it_matters": "Prevents applying a valid identifier to an inadequately matched material."
                    },
                    {
                        "name": "Mapping relationship",
                        "kind": "category",
                        "unit_or_values": "exact-referent | broader | narrower | related | unresolved",
                        "why_it_matters": "Prevents neighbouring identifiers or substance forms from becoming unsupported synonyms."
                    },
                    {
                        "name": "Verification age",
                        "kind": "measurement",
                        "unit_or_values": "Elapsed days since the recorded verification; unknown if never verified",
                        "why_it_matters": "Supports task-specific decisions about rechecking the evidence."
                    },
                    {
                        "name": "Use readiness",
                        "kind": "state",
                        "unit_or_values": "lookup-only | identification-supported | review-required | rejected-for-target",
                        "why_it_matters": "Connects validation and substance matching to an explicit next action."
                    }
                ],
                "affordances": [
                    "Recognise and normalise candidate CAS RN text while preserving its original form.",
                    "Check syntax and checksum, flagging failures without silently repairing digits.",
                    "Resolve a candidate against an identified source and capture assignment evidence.",
                    "Compare the source's substance description with the intended material or record.",
                    "Link compatible records while retaining mapping evidence and unresolved conflicts.",
                    "Prepare a correction or CAS verification request when identification remains unsettled."
                ]
            },
            "sources": [
                {
                    "id": "cas-registry",
                    "title": "CAS Registry",
                    "url": "https://www.cas.org/cas-data/cas-registry",
                    "what_it_supports": "Official definition of the CAS Registry and assignment of unique CAS Registry Numbers to indexed substances.",
                    "url_status": "live"
                }
            ],
            "structure": {
                "bundles": [
                    {
                        "id": "number-recognition",
                        "name": "Number recognition",
                        "description": "Establish whether observed text is a usable CAS RN candidate.",
                        "rationale": "A transcription error can redirect substance lookup before any chemical reasoning occurs.",
                        "layers": [
                            {
                                "id": "representation",
                                "name": "Representation",
                                "description": "Preserve the observed number and justify its normalised form.",
                                "findings": [
                                    {
                                        "id": "candidate-boundaries",
                                        "name": "Candidate boundaries",
                                        "description": "Record the exact token, its CAS label and any formatting transformations.",
                                        "questions": [
                                            {
                                                "text": "Which exact source text is asserted to be a CAS RN, and where does that assertion occur?",
                                                "kind": "provenance",
                                                "id": "candidate-boundaries-q01"
                                            },
                                            {
                                                "text": "Can separators or whitespace be normalised without guessing, inserting or changing digits?",
                                                "kind": "action",
                                                "id": "candidate-boundaries-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "check-digit-validation",
                                "name": "Check-digit validation",
                                "description": "Assess numerical integrity independently of assignment evidence.",
                                "findings": [
                                    {
                                        "id": "validation-outcome",
                                        "name": "Validation outcome",
                                        "description": "Record separate syntax and checksum results, including the validation rule used.",
                                        "questions": [
                                            {
                                                "text": "Does the candidate satisfy the documented CAS RN group-length and separator rules?",
                                                "kind": "definition",
                                                "id": "validation-outcome-q01"
                                            },
                                            {
                                                "text": "Does the computed check digit equal the supplied final digit?",
                                                "kind": "measurement",
                                                "id": "validation-outcome-q02"
                                            },
                                            {
                                                "text": "If validation fails, which source must be revisited before proposing a corrected number?",
                                                "kind": "action",
                                                "id": "validation-outcome-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "cas-assignment-evidence",
                        "name": "CAS assignment evidence",
                        "description": "Establish the evidence that CAS assigned the candidate to the stated substance.",
                        "rationale": "A checksum-valid string and a supplier assertion are insufficient to confirm the assignment.",
                        "layers": [
                            {
                                "id": "assignment-confirmation",
                                "name": "Assignment confirmation",
                                "description": "Identify the record supporting the number-to-substance relationship.",
                                "findings": [
                                    {
                                        "id": "authority-of-assignment",
                                        "name": "Authority of assignment",
                                        "description": "Record whether evidence comes from CAS or an intermediary; CAS identifies itself as the final authority for these numbers. [CAS REGISTRY](https://www.cas.org/cas-data/cas-registry)",
                                        "questions": [
                                            {
                                                "text": "Which consulted record explicitly connects this exact number to a substance description?",
                                                "kind": "provenance",
                                                "id": "authority-of-assignment-q01"
                                            },
                                            {
                                                "text": "Is that connection confirmed by CAS, reproduced by another publisher or merely inferred from a name match?",
                                                "kind": "provenance",
                                                "id": "authority-of-assignment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "lookup-coverage",
                                "name": "Lookup coverage",
                                "description": "Interpret lookup outcomes within the consulted service's coverage and access limits.",
                                "findings": [
                                    {
                                        "id": "unresolved-search",
                                        "name": "Unresolved search",
                                        "description": "Keep a failed or unavailable lookup separate from evidence that a candidate has no assignment.",
                                        "questions": [
                                            {
                                                "text": "Did the search return no match, an access failure or a record outside the source's available coverage?",
                                                "kind": "boundary",
                                                "id": "unresolved-search-q01"
                                            },
                                            {
                                                "text": "Which further CAS lookup or verification route could settle the assignment?",
                                                "kind": "action",
                                                "id": "unresolved-search-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "substance-reference-boundaries",
                        "name": "Substance reference boundaries",
                        "description": "Determine whether the assigned referent fits the substance being identified.",
                        "rationale": "Correctly reading a CAS RN does not ensure that it has been attached to the correct chemical form or material.",
                        "layers": [
                            {
                                "id": "chemical-form-specificity",
                                "name": "Chemical form specificity",
                                "description": "Compare identity-defining details without assuming universal registration rules for each form.",
                                "findings": [
                                    {
                                        "id": "form-match",
                                        "name": "Form match",
                                        "description": "Record agreement or uncertainty concerning salt form, hydration, stereochemistry and isotopic specification.",
                                        "questions": [
                                            {
                                                "text": "Which chemical-form details does the supporting CAS record actually specify?",
                                                "kind": "definition",
                                                "id": "form-match-q01"
                                            },
                                            {
                                                "text": "Does the intended target agree on those details, or is the apparent match based only on a shared name?",
                                                "kind": "boundary",
                                                "id": "form-match-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-granularity",
                                "name": "Material granularity",
                                "description": "Determine the level at which a CAS RN assertion applies within a material description.",
                                "findings": [
                                    {
                                        "id": "whole-or-constituent",
                                        "name": "Whole or constituent",
                                        "description": "Distinguish identification of the stated substance from identification of a constituent or related material.",
                                        "questions": [
                                            {
                                                "text": "Does the source attach this number to the whole material, one constituent or a broader substance description?",
                                                "kind": "boundary",
                                                "id": "whole-or-constituent-q01"
                                            },
                                            {
                                                "text": "For a polymer or variable-composition material, which descriptive limits must match before this number can be applied?",
                                                "kind": "boundary",
                                                "id": "whole-or-constituent-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "identifier-reconciliation",
                        "name": "Identifier reconciliation",
                        "description": "Manage competing CAS RN assertions and links into other identifier systems.",
                        "rationale": "Automatic joins can propagate an incorrect substance assignment across otherwise independent records.",
                        "layers": [
                            {
                                "id": "cross-system-matching",
                                "name": "Cross-system matching",
                                "description": "Qualify relationships to names, structures and other substance identifiers.",
                                "findings": [
                                    {
                                        "id": "mapping-equivalence",
                                        "name": "Mapping equivalence",
                                        "description": "Require evidence that a linked identifier describes the same referent at compatible specificity.",
                                        "questions": [
                                            {
                                                "text": "What evidence connects this CAS RN to the proposed external identifier or structure?",
                                                "kind": "provenance",
                                                "id": "mapping-equivalence-q01"
                                            },
                                            {
                                                "text": "Is the mapping exact, broader, narrower or merely related in chemical identity?",
                                                "kind": "boundary",
                                                "id": "mapping-equivalence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "conflict-and-history",
                                "name": "Conflict and history",
                                "description": "Preserve disagreements and any explicitly documented historical relationships.",
                                "findings": [
                                    {
                                        "id": "competing-number-claims",
                                        "name": "Competing number claims",
                                        "description": "Avoid treating multiple numbers associated with one name as interchangeable without evidence.",
                                        "questions": [
                                            {
                                                "text": "Which sources give competing numbers, and what substance descriptions and dates accompany each assertion?",
                                                "kind": "provenance",
                                                "id": "competing-number-claims-q01"
                                            },
                                            {
                                                "text": "Is there explicit authority evidence for a historical relationship, or could the discrepancy reflect different substances or an error?",
                                                "kind": "boundary",
                                                "id": "competing-number-claims-q02"
                                            },
                                            {
                                                "text": "Which links must remain unresolved until that discrepancy is settled?",
                                                "kind": "action",
                                                "id": "competing-number-claims-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "cas-rn-use-decisions",
                        "name": "CAS RN use decisions",
                        "description": "Translate validation and assignment evidence into permitted identification operations.",
                        "rationale": "The agent needs to distinguish a useful search key from evidence sufficient for a consequential record linkage.",
                        "layers": [
                            {
                                "id": "identification-gates",
                                "name": "Identification gates",
                                "description": "Set the evidence threshold for the intended CAS RN operation.",
                                "findings": [
                                    {
                                        "id": "task-specific-readiness",
                                        "name": "Task-specific readiness",
                                        "description": "Record whether the number is ready for lookup, target identification or joining records.",
                                        "questions": [
                                            {
                                                "text": "Is the intended operation exploratory lookup, substance identification or merging records?",
                                                "kind": "action",
                                                "id": "task-specific-readiness-q01"
                                            },
                                            {
                                                "text": "Which unresolved assignment or form-matching issue prevents that operation from proceeding?",
                                                "kind": "action",
                                                "id": "task-specific-readiness-q02"
                                            },
                                            {
                                                "text": "Would the operation incorrectly treat identifier agreement as evidence of product equivalence, purity or approval?",
                                                "kind": "boundary",
                                                "id": "task-specific-readiness-q03"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "correction-and-reuse",
                                "name": "Correction and reuse",
                                "description": "Determine how an assertion may be corrected or carried into another system.",
                                "findings": [
                                    {
                                        "id": "evidence-preserving-action",
                                        "name": "Evidence-preserving action",
                                        "description": "Keep local corrections distinguishable from CAS assignment decisions and retain conditions attached to retrieved records.",
                                        "questions": [
                                            {
                                                "text": "Does the issue require correcting a local transcription, withdrawing a substance mapping or seeking CAS confirmation?",
                                                "kind": "action",
                                                "id": "evidence-preserving-action-q01"
                                            },
                                            {
                                                "text": "What source attribution and applicable access or reuse conditions must accompany the retrieved identifier evidence?",
                                                "kind": "action",
                                                "id": "evidence-preserving-action-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": [
                                            "Public assigned CAS RN",
                                            "Deleted or replaced CAS RN",
                                            "Alternate CAS RN for the same substance",
                                            "CAS RN for a defined mixture or UVCB substance",
                                            "CAS RN for a polymer",
                                            "CAS RN for a biological sequence"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of CAS Registry Number this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "What exact CAS documentation should govern syntax, leading-zero treatment and checksum implementation in this model?",
                "Which historical assignment relationships and status terms does CAS expose, and how should their evidence be represented?",
                "What registration boundaries apply to stereoisomers, salts, hydrates, isotopic forms and crystal forms in the cases this catalogue must handle?",
                "What descriptive evidence is sufficient to match polymers and variable-composition substances without asserting unsupported equivalence?",
                "Which CAS sources will agents be able to access, and what verification and reuse conditions apply to the intended deployment?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 11,
                "questions": 24
            }
        },
        "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 CAS Registry Number, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise a CAS Registry Number, assess evidence for its substance assignment, and decide whether it can support a particular identification or linking task.",
            "characteristics": {
                "substance": "information",
                "origin": "conceptual",
                "agency": "inert"
            },
            "whatYouCanDoWithIt": [
                "read and interpreted",
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Described in 62 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 CAS Registry Number, 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": [],
            "standing": "Described in 62 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 CAS Registry Number from another, and a CAS Registry Number 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 CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number 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 CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number 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 CAS Registry Number between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a CAS Registry Number 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 CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number 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 CAS Registry Number contains and in what form it is held.",
                                        "questions": [
                                            {
                                                "id": "content-and-format-q01",
                                                "text": "What identifies and describes the content of a CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number and the period it survives.",
                                        "questions": [
                                            {
                                                "id": "access-rules-q01",
                                                "text": "What identifies and describes access to a CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number 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 CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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 CAS Registry Number is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a CAS Registry Number, 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 CAS Registry Number, 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 CAS Registry Number 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
            }
        }
    }
}