{
    "model": {
        "rank": 4827,
        "code": "thing-q131594",
        "model_id": "vr.tr.pauli-exclusion-principle",
        "name": "Pauli exclusion principle",
        "purpose": "Enable an AI agent to identify when the Pauli exclusion principle applies, assess whether a proposed fermionic state respects it, and justify permitted state assignments or transitions.",
        "family": "Thing Registry",
        "category": "Cross-cutting context",
        "status": "research-draft",
        "kind": "thing",
        "plane": "XCT",
        "domain": "XCT.QLT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q131594/",
        "tier": 2,
        "score": 72,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 72,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q131594",
                "url": "https://www.wikidata.org/wiki/Q131594",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T21:04:16Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 16.3,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087fb-71ee-7122-b9fd-8f5727fc1064\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: Pauli exclusion principle\nSense to describe: (none recorded)\nDomain code: XCT.QLT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch",
                        "usd": 0,
                        "recall": true
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                    "codex": {
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                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087fb-71fc-7623-bdb8-9c318dc6822e\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: Pauli exclusion principle\nRegistry id: vr.tr.pauli-exclusion-principle\nPlane / domain: XCT / XCT.QLT\nRegistry definition: (none recorded)\nNames folde"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q131594",
                "registryId": "vr.tr.pauli-exclusion-principle",
                "name": "Pauli exclusion principle",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "XCT.QLT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q131594/",
            "model": {
                "registry_id": "vr.tr.pauli-exclusion-principle",
                "name": "Pauli exclusion principle",
                "purpose": "Enable an AI agent to identify when the Pauli exclusion principle applies, assess whether a proposed fermionic state respects it, and justify permitted state assignments or transitions.",
                "definition": "The Pauli exclusion principle is the quantum-mechanical rule that no two identical fermions can occupy the same single-particle quantum state, expressed by antisymmetry of their joint state under particle exchange.",
                "scope_statement": "This model owns the Pauli exclusion principle as a specific quantum constraint on identical fermions, including its formulations, applicability, operational checks, and limits of inference; it adds these commitments to the broader concept of a principle.",
                "in_scope": [
                    "Identification of identical fermions and the degrees of freedom defining their complete one-particle states.",
                    "Exclusion of multiple occupancy of the same complete one-particle state.",
                    "Relationships among antisymmetric many-fermion states, orbital occupancy, and fermionic occupation numbers.",
                    "Applications to atomic configurations, state availability, and degeneracy effects.",
                    "Assessment of apparent exceptions, effective descriptions, and proposed violations."
                ],
                "out_of_scope": [
                    "The general meaning, classification, or justification of principles.",
                    "A complete treatment of quantum mechanics or quantum field theory.",
                    "The spin-statistics theorem as an independently developed theorem and proof.",
                    "Bosonic statistics and distinguishable-particle state counting.",
                    "Complete models of chemical bonding, solids, or compact stars.",
                    "Electromagnetic interactions and other dynamical forces considered independently of exclusion."
                ],
                "distinguishing_features": [
                    "The constraint concerns identical fermions; a statement about every kind of particle sharing a state is not the Pauli exclusion principle.",
                    "The excluded coincidence is occupancy of the same complete one-particle state, not presence at the same position.",
                    "A spatial orbital can accommodate electrons with opposite spin states because those are different complete one-electron states.",
                    "Exclusion restricts admissible quantum states; treating it as an additional fundamental repulsive force confuses the constraint with its physical consequences.",
                    "A forbidden shared-state assignment remains forbidden without invoking electrical charge or Coulomb repulsion."
                ],
                "characteristics": [
                    {
                        "name": "Particle identity class",
                        "kind": "category",
                        "unit_or_values": "Identical elementary fermions; composite fermions within a stated regime; distinguishable particles; bosons; unresolved effective excitation",
                        "why_it_matters": "Establishes whether ordinary fermionic exclusion applies and which particles must be considered together."
                    },
                    {
                        "name": "One-particle state specification",
                        "kind": "state",
                        "unit_or_values": "Chosen basis or mode labels, including spatial and relevant internal degrees of freedom",
                        "why_it_matters": "Prevents an incomplete label such as position, energy, or spatial orbital from being mistaken for a complete state."
                    },
                    {
                        "name": "Exchange symmetry",
                        "kind": "category",
                        "unit_or_values": "Antisymmetric; symmetric; other exchange rule; not established",
                        "why_it_matters": "Connects the exclusion statement to the many-particle state representation."
                    },
                    {
                        "name": "Complete-mode occupation",
                        "kind": "measurement",
                        "unit_or_values": "Dimensionless; occupation-number eigenvalues 0 or 1, with expectation values between 0 and 1",
                        "why_it_matters": "Supports exclusion checks while allowing fractional mean occupations in statistical or correlated descriptions."
                    },
                    {
                        "name": "State degeneracy",
                        "kind": "measurement",
                        "unit_or_values": "Dimensionless count of distinct complete states sharing a selected label or energy",
                        "why_it_matters": "Explains why several fermions may share an energy level or spatial-orbital label without sharing a complete state."
                    },
                    {
                        "name": "Model regime",
                        "kind": "category",
                        "unit_or_values": "Nonrelativistic many-body description; relativistic field description; composite-particle approximation; effective quasiparticle description",
                        "why_it_matters": "Makes the assumptions behind state labels and exclusion tests explicit."
                    },
                    {
                        "name": "Exclusion assessment",
                        "kind": "state",
                        "unit_or_values": "Compatible; incompatible under stated assumptions; insufficiently specified; outside model applicability",
                        "why_it_matters": "Separates a failed state assignment from missing information or an inappropriate description."
                    },
                    {
                        "name": "Attributed consequence",
                        "kind": "relation",
                        "unit_or_values": "Links to atomic occupancy, available final states, Fermi filling, or degeneracy pressure, together with additional assumptions",
                        "why_it_matters": "Records where exclusion contributes to an explanation without claiming it supplies the full dynamics."
                    }
                ],
                "affordances": [
                    "Check whether a particle population requires a fermionic exclusion constraint.",
                    "Expand incomplete orbital or energy labels into the complete states needed for occupancy decisions.",
                    "Reject duplicate complete-state assignments within an identical-fermion population.",
                    "Assess whether a proposed transition has an available fermionic final state while recording other selection rules separately.",
                    "Trace a claimed macroscopic consequence to exclusion, state counting, and the additional physical assumptions it requires.",
                    "Diagnose an apparent violation as incomplete labeling, inappropriate applicability, a representation error, or a claim requiring further evidence."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "fermion-identity-and-applicability",
                        "name": "Fermion identity and applicability",
                        "description": "Establishes which particles are subject to the constraint and what makes two proposed state assignments equivalent.",
                        "rationale": "An exclusion judgment is meaningful only after particle identity and complete state labels are established.",
                        "layers": [
                            {
                                "id": "identical-fermion-population",
                                "name": "Identical fermion population",
                                "description": "Records the population over which fermionic exchange and exclusion are imposed.",
                                "findings": [
                                    {
                                        "id": "identity-before-exclusion",
                                        "name": "Identity before exclusion",
                                        "description": "Require a justified identification of the identical-fermion population rather than inferring applicability from particle proximity or charge.",
                                        "questions": [
                                            {
                                                "text": "Which particles are identical fermions in this description, and what establishes that classification?",
                                                "kind": "definition",
                                                "id": "identity-before-exclusion-q01"
                                            },
                                            {
                                                "text": "If the entities are composite particles or quasiparticles, in what regime is treating them as fermions justified?",
                                                "kind": "boundary",
                                                "id": "identity-before-exclusion-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "complete-state-boundary",
                                "name": "Complete state boundary",
                                "description": "Separates a full one-particle state from shared position, energy, or orbital labels.",
                                "findings": [
                                    {
                                        "id": "state-label-completeness",
                                        "name": "State label completeness",
                                        "description": "Record the spatial and internal degrees of freedom necessary to decide whether two occupancy claims refer to the same complete state.",
                                        "questions": [
                                            {
                                                "text": "Which basis and internal labels distinguish the complete one-particle states used here?",
                                                "kind": "definition",
                                                "id": "state-label-completeness-q01"
                                            },
                                            {
                                                "text": "Does the alleged shared state omit spin or another label that distinguishes the particles' state assignments?",
                                                "kind": "boundary",
                                                "id": "state-label-completeness-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "exclusion-formulations-and-checks",
                        "name": "Exclusion formulations and checks",
                        "description": "Connects the verbal principle to antisymmetric states and occupation-number constraints.",
                        "rationale": "Agents need a representation-specific test and must distinguish exclusion from stronger or related theoretical statements.",
                        "layers": [
                            {
                                "id": "antisymmetric-state-description",
                                "name": "Antisymmetric state description",
                                "description": "Examines exclusion through the exchange properties of a many-fermion state.",
                                "findings": [
                                    {
                                        "id": "exchange-and-duplicate-states",
                                        "name": "Exchange and duplicate states",
                                        "description": "In the standard fermionic description, antisymmetry makes an attempted repeated occupancy of one complete state vanish; a single Slater determinant is not required to represent every valid interacting state.",
                                        "questions": [
                                            {
                                                "text": "How does the proposed many-particle state transform when two identical fermions are exchanged?",
                                                "kind": "definition",
                                                "id": "exchange-and-duplicate-states-q01"
                                            },
                                            {
                                                "text": "Does the representation enforce antisymmetry while allowing correlations beyond a single Slater determinant?",
                                                "kind": "boundary",
                                                "id": "exchange-and-duplicate-states-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "occupation-number-description",
                                "name": "Occupation-number description",
                                "description": "Checks mode occupancy without confusing definite occupation with averaged occupation.",
                                "findings": [
                                    {
                                        "id": "binary-occupation-and-fractional-means",
                                        "name": "Binary occupation and fractional means",
                                        "description": "For a complete fermionic mode, occupation-number outcomes are zero or one; a fractional expectation value does not by itself indicate an exclusion violation.",
                                        "questions": [
                                            {
                                                "text": "Is the reported occupancy a definite occupation, an expectation value, or a sum over several distinct modes?",
                                                "kind": "measurement",
                                                "id": "binary-occupation-and-fractional-means-q01"
                                            },
                                            {
                                                "text": "Does any proposed complete-mode occupancy exceed the allowed range after averaging and degeneracy are accounted for?",
                                                "kind": "action",
                                                "id": "binary-occupation-and-fractional-means-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "state-assignment-and-physical-consequences",
                        "name": "State assignment and physical consequences",
                        "description": "Supports atomic occupancy checks and qualified explanations of collective fermionic behavior.",
                        "rationale": "Exclusion is used to constrain configurations and explain observable effects, but it does not independently determine energies or dynamics.",
                        "layers": [
                            {
                                "id": "atomic-orbitals-and-transitions",
                                "name": "Atomic orbitals and transitions",
                                "description": "Applies the complete-state constraint to electron configurations and available final states.",
                                "findings": [
                                    {
                                        "id": "orbital-capacity-and-final-state-availability",
                                        "name": "Orbital capacity and final-state availability",
                                        "description": "In a spatial-orbital description, opposite spin states permit two electrons per orbital; exclusion compatibility alone does not establish energetic preference or transition probability.",
                                        "questions": [
                                            {
                                                "text": "Which spin-orbitals are occupied, and would the proposed configuration duplicate a complete one-electron state?",
                                                "kind": "measurement",
                                                "id": "orbital-capacity-and-final-state-availability-q01"
                                            },
                                            {
                                                "text": "If a final state is available under exclusion, which additional energy, conservation, or selection-rule checks remain?",
                                                "kind": "action",
                                                "id": "orbital-capacity-and-final-state-availability-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "fermi-filling-and-degeneracy",
                                "name": "Fermi filling and degeneracy",
                                "description": "Relates exclusion to state filling and collective effects under explicit physical assumptions.",
                                "findings": [
                                    {
                                        "id": "consequences-require-more-than-exclusion",
                                        "name": "Consequences require more than exclusion",
                                        "description": "Record how exclusion combines with the energy spectrum, particle density, temperature, and interactions in explanations involving Fermi filling or degeneracy pressure.",
                                        "questions": [
                                            {
                                                "text": "Which spectrum, density, temperature, and interaction assumptions support the claimed filling pattern or pressure?",
                                                "kind": "measurement",
                                                "id": "consequences-require-more-than-exclusion-q01"
                                            },
                                            {
                                                "text": "Which part of the explanation follows from restricted occupancy, and which part requires a separate dynamical or statistical model?",
                                                "kind": "boundary",
                                                "id": "consequences-require-more-than-exclusion-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "theoretical-status-and-apparent-violations",
                        "name": "Theoretical status and apparent violations",
                        "description": "Records the principle's theoretical grounding and evaluates claims that appear to conflict with it.",
                        "rationale": "Agents must distinguish equivalent standard formulations, differences in theoretical grounding, and actual proposals to depart from fermionic exclusion.",
                        "layers": [
                            {
                                "id": "postulate-and-theorem-context",
                                "name": "Postulate and theorem context",
                                "description": "Identifies whether fermionic statistics are assumed or connected to a spin-statistics argument within a specified framework.",
                                "findings": [
                                    {
                                        "id": "grounding-with-explicit-assumptions",
                                        "name": "Grounding with explicit assumptions",
                                        "description": "Keep the exclusion rule distinct from the broader spin-statistics connection, and record the framework and assumptions used to justify each.",
                                        "questions": [
                                            {
                                                "text": "Does the cited treatment introduce fermionic antisymmetry as a postulate or justify it through a spin-statistics result?",
                                                "kind": "provenance",
                                                "id": "grounding-with-explicit-assumptions-q01"
                                            },
                                            {
                                                "text": "Which assumptions limit that justification, and does the application satisfy them?",
                                                "kind": "boundary",
                                                "id": "grounding-with-explicit-assumptions-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "apparent-exceptions-and-evidence",
                                "name": "Apparent exceptions and evidence",
                                "description": "Separates state-label errors and effective descriptions from experimentally framed violation claims.",
                                "findings": [
                                    {
                                        "id": "violation-claim-audit",
                                        "name": "Violation claim audit",
                                        "description": "Require an explicit forbidden occupancy or process, an applicable particle description, and traceable evidence before treating a reported effect as a challenge to exclusion.",
                                        "questions": [
                                            {
                                                "text": "What precisely forbidden state or process is claimed, and could incomplete labels, composite pairing, or an effective description explain the observation?",
                                                "kind": "boundary",
                                                "id": "violation-claim-audit-q01"
                                            },
                                            {
                                                "text": "What primary evidence, background analysis, uncertainty, and violation parameter support the claim or bound?",
                                                "kind": "provenance",
                                                "id": "violation-claim-audit-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-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "This describes the established quantum-physics sense, not the broader concept of a principle; no research sources were consulted.",
                                            "The single-particle occupation formulation is useful, but interacting or entangled systems require the more general antisymmetric many-fermion state description.",
                                            "Experimental limits on hypothetical violations require dedicated research; no numerical limits are asserted here."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of Pauli exclusion principle this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Determining allowed electron configurations and explaining atomic shell structure and periodic chemical behaviour.",
                                            "Calculating electronic occupations in metals and semiconductors.",
                                            "Explaining the fermionic contribution to the stability of ordinary matter.",
                                            "Modelling electron degeneracy pressure in white dwarfs.",
                                            "Predicting Pauli blocking of transitions into occupied fermionic states."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of Pauli exclusion principle this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "quantity": "Occupation number of a fully specified single-particle fermionic state",
                                                "typical_range": "0 or 1; mean occupation can lie between 0 and 1",
                                                "unit": "dimensionless"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of Pauli exclusion principle this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Applying the restriction to bosons, which can share a single-particle state.",
                                            "Treating a spatial orbital as a fully specified electron state: an orbital can accommodate two electrons with different spin states.",
                                            "Describing exclusion as a separate classical repulsive force rather than a constraint on allowed quantum states.",
                                            "Confusing exclusion from a quantum state with a prohibition on particles occupying overlapping spatial regions.",
                                            "Assuming degeneracy pressure alone determines compact-star stability while neglecting gravity, relativity and interactions."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of Pauli exclusion principle this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "principle",
                                                "difference": "A principle is a general category of foundational statement; this particular principle restricts the allowed states of identical fermions."
                                            },
                                            {
                                                "name": "Fermi-Dirac statistics",
                                                "difference": "Fermi-Dirac statistics describes equilibrium occupation of fermionic states; exclusion supplies the restriction on each state's occupation."
                                            },
                                            {
                                                "name": "spin-statistics theorem",
                                                "difference": "The theorem connects half-integer spin with fermionic statistics under relativistic quantum field theory assumptions; exclusion is a consequence of fermionic antisymmetry."
                                            },
                                            {
                                                "name": "Hund's rules",
                                                "difference": "Hund's rules help determine energetically favoured atomic configurations and terms among allowed possibilities; exclusion determines whether occupation arrangements are permitted."
                                            },
                                            {
                                                "name": "Aufbau principle",
                                                "difference": "The Aufbau principle guides construction of electron configurations by orbital filling; exclusion restricts occupation regardless of orbital energy ordering."
                                            },
                                            {
                                                "name": "degeneracy pressure",
                                                "difference": "Degeneracy pressure is a macroscopic consequence of fermionic occupation constraints and particle motion, rather than the constraint itself."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of Pauli exclusion principle this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Which authoritative references should anchor the verbal, antisymmetric-state, and occupation-number formulations, and how do they distinguish exclusion from the spin-statistics theorem?",
                "Which operational criteria should define the validity of a composite-fermion or quasiparticle description in applications covered by this registry entry?",
                "Which experimental searches and parameter definitions should be recorded when representing bounds on proposed exclusion violations?",
                "How should the model record occupancy constraints for correlated or open systems when no single orbital configuration adequately describes the state?",
                "Which neighboring registered models should own detailed treatments of Fermi-Dirac statistics, Pauli blocking, exchange effects, and degeneracy pressure?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 13,
                "questions": 21
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "abstract concept",
            "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 Pauli exclusion principle, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to identify when the Pauli exclusion principle applies, assess whether a proposed fermionic state respects it, and justify permitted state assignments or transitions.",
            "characteristics": {
                "substance": "abstract",
                "origin": "conceptual",
                "agency": "inert"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Described in 72 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 Pauli exclusion principle, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "an abstraction with no physical instance",
            "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": [
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about."
            ],
            "relatedModels": [],
            "standing": "Described in 72 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 Pauli exclusion principle from another, and a Pauli exclusion principle 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 Pauli exclusion principle, 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 Pauli exclusion principle, 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 Pauli exclusion principle 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 Pauli exclusion principle, 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 Pauli exclusion principle, 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 Pauli exclusion principle 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 Pauli exclusion principle 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 Pauli exclusion principle, 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 Pauli exclusion principle, 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 Pauli exclusion principle 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 Pauli exclusion principle from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a Pauli exclusion principle, 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 Pauli exclusion principle, 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 Pauli exclusion principle 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 Pauli exclusion principle 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 Pauli exclusion principle between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a Pauli exclusion principle, 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 Pauli exclusion principle, 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 Pauli exclusion principle 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 Pauli exclusion principle, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a Pauli exclusion principle 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 Pauli exclusion principle, 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 Pauli exclusion principle, 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 Pauli exclusion principle is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "definitions-in-contest",
                        "name": "Definitions and who holds them",
                        "description": "What Pauli exclusion principle is taken to mean, and by whom.",
                        "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.",
                        "layers": [
                            {
                                "id": "competing-definitions",
                                "name": "Competing definitions",
                                "description": "The main readings and the traditions behind them.",
                                "findings": [
                                    {
                                        "id": "definition-map",
                                        "name": "Definitions and their holders",
                                        "description": "Each definition with the school or body that holds it.",
                                        "questions": [
                                            {
                                                "id": "definition-map-q01",
                                                "text": "Which definitions of Pauli exclusion principle are in use, and which tradition or body holds each?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "definition-map-q02",
                                                "text": "What turns on the difference between them in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "operationalisation",
                                "name": "Operationalisation",
                                "description": "How it is measured or applied when it has to be.",
                                "findings": [
                                    {
                                        "id": "operational-record",
                                        "name": "Measures and proxies",
                                        "description": "Instruments and indicators used to stand in for it.",
                                        "questions": [
                                            {
                                                "id": "operational-record-q01",
                                                "text": "How is Pauli exclusion principle operationalised or measured in practice, and by what instrument?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "operational-record-q02",
                                                "text": "What does that operationalisation leave out, and when does that matter?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "instances-and-use",
                        "name": "Instances, use and consequence",
                        "description": "What counts as an instance of Pauli exclusion principle and what follows from calling something that.",
                        "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.",
                        "layers": [
                            {
                                "id": "instances",
                                "name": "What counts as an instance",
                                "description": "Clear cases, borderline cases and non-cases.",
                                "findings": [
                                    {
                                        "id": "instance-tests",
                                        "name": "Tests for an instance",
                                        "description": "What would settle whether something falls under it.",
                                        "questions": [
                                            {
                                                "id": "instance-tests-q01",
                                                "text": "What would settle whether something is an instance of Pauli exclusion principle?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "instance-tests-q02",
                                                "text": "Which borderline cases are argued about, and on what grounds?",
                                                "kind": "definition"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "consequence",
                                "name": "Consequence of application",
                                "description": "Rights, duties or decisions that follow from the label.",
                                "findings": [
                                    {
                                        "id": "consequence-record",
                                        "name": "What the label licenses",
                                        "description": "What an agent may do once something is classified this way.",
                                        "questions": [
                                            {
                                                "id": "consequence-record-q01",
                                                "text": "What follows practically once something is treated as Pauli exclusion principle?",
                                                "kind": "action"
                                            },
                                            {
                                                "id": "consequence-record-q02",
                                                "text": "What must an agent not infer from the label alone?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a Pauli exclusion principle 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 Pauli exclusion principle and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a Pauli exclusion principle, 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 Pauli exclusion principle, 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 Pauli exclusion principle 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 Pauli exclusion principle is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a Pauli exclusion principle, 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 Pauli exclusion principle, 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 Pauli exclusion principle is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 5,
                "layers": 10,
                "findings": 12,
                "questions": 32
            }
        }
    }
}