{
    "model": {
        "rank": 5117,
        "code": "thing-q191010",
        "model_id": "vr.tr.titration",
        "name": "titration",
        "purpose": "Enable an agent to recognise an analytical titration, assess whether its endpoint supports a defensible quantitative result, and identify appropriate next actions.",
        "family": "Thing Registry",
        "category": "Information and virtual systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "INF",
        "domain": "INF.MED",
        "industry": "",
        "version": "",
        "url": "/models/thing/q191010/",
        "tier": 2,
        "score": 70,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "Volhard method",
                "conductometric titration",
                "acid–base titration",
                "potentiometric titration",
                "complexometric titration",
                "dichromatometry",
                "amperometric titration",
                "permanganometry",
                "Mohr’s Method",
                "Karl Fischer titration",
                "redox titration",
                "back titration",
                "Alkalimetry",
                "acidimetry",
                "chelatometric titration",
                "dichromate titration"
            ],
            "aliasCount": 16,
            "merged": 16,
            "knownIn": 70,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q191010",
                "url": "https://www.wikidata.org/wiki/Q191010",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T21:42:11Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 22.5,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0881e-41e2-7ab2-895c-72a6ff0a2178\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: titration\nSense to describe: (none recorded)\nDomain code: INF.MED\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 regis",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 52.8,
                        "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: 01a0881e-41e5-73d3-9967-6b499b7da396\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: titration\nRegistry id: vr.tr.titration\nPlane / domain: INF / INF.MED\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nCont"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q191010",
                "registryId": "vr.tr.titration",
                "name": "titration",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "INF.MED"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q191010/",
            "model": {
                "registry_id": "vr.tr.titration",
                "name": "titration",
                "purpose": "Enable an agent to recognise an analytical titration, assess whether its endpoint supports a defensible quantitative result, and identify appropriate next actions.",
                "definition": "Titration is a quantitative analytical procedure in which a measured amount of a reagent is added to a sample until a detected endpoint allows the amount of an analyte to be calculated from the reaction stoichiometry.",
                "scope_statement": "This model owns titration as an analytical method and its individual executions, in which a measured amount of reagent is delivered or generated to determine an analyte quantity through a defined reaction and endpoint rule; this sense is provisional because the registry has no definition and assigns INF / INF.MED.",
                "in_scope": [
                    "Analyte, sample portion, matrix and intended determination",
                    "Reaction basis and choice of titrant",
                    "Delivery or generation of a measured titrant amount",
                    "Endpoint detection and its relationship to equivalence",
                    "Calculation, quality assessment and reporting of the determination"
                ],
                "out_of_scope": [
                    "Clinical adjustment of medication doses, pending confirmation of the registry's intended sense",
                    "Manufacture and maintenance of burettes, sensors and automatic titrators",
                    "Complete identity and hazard models for chemicals",
                    "Upstream sampling programmes and laboratory-wide management",
                    "Other analytical methods that do not determine quantity through titrant addition or generation"
                ],
                "distinguishing_features": [
                    "A determination connects a measured titrant amount to an analyte quantity through a specified reaction basis.",
                    "The procedure defines an endpoint rule rather than merely adding reagent until an unspecified change occurs.",
                    "The observed endpoint and the reaction's equivalence condition are distinguishable and may differ.",
                    "Titrant may be delivered as a solution or generated in situ; a burette is not an essential identity test.",
                    "Clinical dose titration adjusts treatment against patient response and does not satisfy this analytical scope."
                ],
                "characteristics": [
                    {
                        "name": "Determination target",
                        "kind": "relation",
                        "unit_or_values": "Analyte or operationally defined quantity linked to a sample portion",
                        "why_it_matters": "Establishes what the result represents, including determinations that combine several reacting species."
                    },
                    {
                        "name": "Reaction family",
                        "kind": "category",
                        "unit_or_values": "Acid-base, oxidation-reduction, complexometric, precipitation or another specified reaction",
                        "why_it_matters": "Constrains reagent selection, reaction conditions and interpretation."
                    },
                    {
                        "name": "Determination arrangement",
                        "kind": "category",
                        "unit_or_values": "Direct, back, displacement or another specified arrangement",
                        "why_it_matters": "Determines which measured quantities enter the analyte calculation."
                    },
                    {
                        "name": "Titrant amount basis",
                        "kind": "category",
                        "unit_or_values": "Solution volume and concentration, generated charge with conversion assumptions, or another justified basis",
                        "why_it_matters": "Identifies how reagent amount is established and which calibration evidence is required."
                    },
                    {
                        "name": "Titrant concentration",
                        "kind": "measurement",
                        "unit_or_values": "mol/L or another explicitly defined concentration basis; not applicable where no titrant solution is used",
                        "why_it_matters": "Supports conversion from delivered solution quantity to reacting amount."
                    },
                    {
                        "name": "Endpoint signal",
                        "kind": "category",
                        "unit_or_values": "Visual indicator, potentiometric, photometric, conductometric or another specified signal",
                        "why_it_matters": "Identifies the evidence used to stop addition or locate the endpoint."
                    },
                    {
                        "name": "Endpoint position",
                        "kind": "measurement",
                        "unit_or_values": "mL, C or another quantity appropriate to the delivery or generation method",
                        "why_it_matters": "Records the measured position used in the calculation."
                    },
                    {
                        "name": "Execution state",
                        "kind": "state",
                        "unit_or_values": "Prepared, running, endpoint assigned, under review, accepted, rejected or aborted",
                        "why_it_matters": "Distinguishes an observed endpoint from an accepted determination."
                    },
                    {
                        "name": "Reported determination",
                        "kind": "measurement",
                        "unit_or_values": "Explicit measurand, value, unit, reporting basis and uncertainty where assessed",
                        "why_it_matters": "Prevents comparison of results expressed on incompatible sample or chemical bases."
                    }
                ],
                "affordances": [
                    "Check whether a proposed titration can address the stated analyte in the stated matrix.",
                    "Identify missing standardisation, blank or sample-preparation evidence before execution.",
                    "Associate addition records and sensor observations with an endpoint assignment.",
                    "Recalculate the determination from recorded quantities and declared corrections.",
                    "Flag ambiguous endpoints, interference or failed acceptance criteria for review or repetition.",
                    "Compare replicate determinations expressed on the same reporting basis."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "determination-and-reaction",
                        "name": "Determination and reaction",
                        "description": "Defines what is being determined and the chemical relationship that makes titration informative.",
                        "rationale": "A measured reagent amount becomes an analytical result only through a justified reaction and a clearly defined target.",
                        "layers": [
                            {
                                "id": "analyte-and-matrix",
                                "name": "Analyte and matrix",
                                "description": "Connects the intended determination to the actual sample portion and potentially competing constituents.",
                                "findings": [
                                    {
                                        "id": "target-selectivity",
                                        "name": "Target selectivity",
                                        "description": "Record whether the method determines a particular species or a combined, method-defined response.",
                                        "questions": [
                                            {
                                                "text": "Which analyte or operationally defined quantity does this titration determine?",
                                                "kind": "definition",
                                                "id": "target-selectivity-q01"
                                            },
                                            {
                                                "text": "Which other sample constituents could consume titrant or alter the endpoint signal?",
                                                "kind": "boundary",
                                                "id": "target-selectivity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "reaction-and-arrangement",
                                "name": "Reaction and arrangement",
                                "description": "Specifies the reaction conditions and how the measured reactions relate to the target quantity.",
                                "findings": [
                                    {
                                        "id": "quantitative-reaction-basis",
                                        "name": "Quantitative reaction basis",
                                        "description": "Record the reaction relationship, required conditions and direct or indirect determination arrangement.",
                                        "questions": [
                                            {
                                                "text": "What reaction relationship converts titrant amount into the target quantity under the stated conditions?",
                                                "kind": "definition",
                                                "id": "quantitative-reaction-basis-q01"
                                            },
                                            {
                                                "text": "Does the arrangement measure the analyte directly, an excess reagent remaining after reaction, or a displaced species?",
                                                "kind": "boundary",
                                                "id": "quantitative-reaction-basis-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "sample-and-titrant-readiness",
                        "name": "Sample and titrant readiness",
                        "description": "Establishes the quantitative basis of the sample portion and the reagent used to interrogate it.",
                        "rationale": "An endpoint cannot repair an unknown sample basis or an inadequately established titrant amount.",
                        "layers": [
                            {
                                "id": "sample-portion-preparation",
                                "name": "Sample portion preparation",
                                "description": "Tracks the material entering the titration and transformations needed to interpret its result.",
                                "findings": [
                                    {
                                        "id": "portion-and-preparation-factors",
                                        "name": "Portion and preparation factors",
                                        "description": "Record sample mass or volume, aliquoting, dilution and preparation steps that affect the target quantity.",
                                        "questions": [
                                            {
                                                "text": "What original sample quantity does the titrated portion represent after dilution and aliquoting?",
                                                "kind": "measurement",
                                                "id": "portion-and-preparation-factors-q01"
                                            },
                                            {
                                                "text": "Which preparation steps could lose, transform or incompletely release the analyte?",
                                                "kind": "boundary",
                                                "id": "portion-and-preparation-factors-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "titrant-amount-assurance",
                                "name": "Titrant amount assurance",
                                "description": "Establishes how delivered or generated reagent amount is known.",
                                "findings": [
                                    {
                                        "id": "reagent-amount-traceability",
                                        "name": "Reagent amount traceability",
                                        "description": "Link solution standardisation or reagent-generation calibration to the execution in which it is used.",
                                        "questions": [
                                            {
                                                "text": "What standardisation or calibration evidence establishes the amount of titrant delivered or generated?",
                                                "kind": "provenance",
                                                "id": "reagent-amount-traceability-q01"
                                            },
                                            {
                                                "text": "What method-specific checks determine whether that evidence remains valid for this execution?",
                                                "kind": "action",
                                                "id": "reagent-amount-traceability-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "addition-and-endpoint",
                        "name": "Addition and endpoint",
                        "description": "Captures how reagent delivery, reaction progress and endpoint evidence are coordinated.",
                        "rationale": "The endpoint is an interpreted observation whose reliability depends on addition history and reaction behaviour.",
                        "layers": [
                            {
                                "id": "delivery-and-equilibration",
                                "name": "Delivery and equilibration",
                                "description": "Records the addition sequence and conditions needed for observations to represent reaction progress.",
                                "findings": [
                                    {
                                        "id": "addition-history",
                                        "name": "Addition history",
                                        "description": "Associate delivered volume or generated charge with mixing, waiting periods and signal observations.",
                                        "questions": [
                                            {
                                                "text": "What cumulative titrant amount and signal observation were recorded at each relevant step?",
                                                "kind": "measurement",
                                                "id": "addition-history-q01"
                                            },
                                            {
                                                "text": "What evidence permits the next addition, a smaller increment, a longer wait or an abort?",
                                                "kind": "action",
                                                "id": "addition-history-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "endpoint-interpretation",
                                "name": "Endpoint interpretation",
                                "description": "Separates the endpoint selection rule from the equivalence condition it is intended to estimate.",
                                "findings": [
                                    {
                                        "id": "endpoint-assignment",
                                        "name": "Endpoint assignment",
                                        "description": "Preserve the observed signal, assignment rule and justification for selecting a particular endpoint.",
                                        "questions": [
                                            {
                                                "text": "Which visual criterion or calculation assigns the endpoint, and to which reaction stage?",
                                                "kind": "definition",
                                                "id": "endpoint-assignment-q01"
                                            },
                                            {
                                                "text": "How is the difference between the assigned endpoint and the intended equivalence condition assessed or corrected?",
                                                "kind": "measurement",
                                                "id": "endpoint-assignment-q02"
                                            },
                                            {
                                                "text": "What should happen if the signal shows multiple candidate endpoints, no clear endpoint or overshoot?",
                                                "kind": "action",
                                                "id": "endpoint-assignment-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "result-and-acceptance",
                        "name": "Result and acceptance",
                        "description": "Converts endpoint evidence into a reported determination and assesses its fitness for use.",
                        "rationale": "Calculation and acceptance require explicit treatment of reaction arrangement, corrections and method-specific evidence.",
                        "layers": [
                            {
                                "id": "quantitative-reduction",
                                "name": "Quantitative reduction",
                                "description": "Defines the calculation from measured reagent quantities to the reported sample quantity.",
                                "findings": [
                                    {
                                        "id": "calculation-and-corrections",
                                        "name": "Calculation and corrections",
                                        "description": "Record the equation, reaction factors, blank treatment, preparation factors and reporting basis.",
                                        "questions": [
                                            {
                                                "text": "Which equation maps the measured quantities to the result for this direct or indirect titration arrangement?",
                                                "kind": "measurement",
                                                "id": "calculation-and-corrections-q01"
                                            },
                                            {
                                                "text": "Which blank, dilution and other corrections apply, and what evidence supports each?",
                                                "kind": "provenance",
                                                "id": "calculation-and-corrections-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "fitness-for-reporting",
                                "name": "Fitness for reporting",
                                "description": "Assesses the determination against declared criteria and preserves unresolved limitations.",
                                "findings": [
                                    {
                                        "id": "acceptance-and-follow-up",
                                        "name": "Acceptance and follow-up",
                                        "description": "Connect replicate agreement, control results and uncertainty assessment to a reporting decision.",
                                        "questions": [
                                            {
                                                "text": "Which method-specific acceptance criteria apply, and how do replicates, blanks and controls compare with them?",
                                                "kind": "measurement",
                                                "id": "acceptance-and-follow-up-q01"
                                            },
                                            {
                                                "text": "Which failures require repetition, restandardisation, a different method or qualified reporting?",
                                                "kind": "action",
                                                "id": "acceptance-and-follow-up-q02"
                                            },
                                            {
                                                "text": "Which uncertainty contributions and unresolved interferences limit the reported determination?",
                                                "kind": "boundary",
                                                "id": "acceptance-and-follow-up-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "This describes analytical chemistry titration. The absent sense and supplied INF.MED domain code leave the intended registry sense unresolved.",
                                            "The kinds mix reaction chemistry with procedural arrangement; these categories overlap.",
                                            "Standards and measurement ranges are recalled rather than verified; applicability, editions and method-specific requirements require checking."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of titration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Acid-base titration",
                                            "Oxidation-reduction titration",
                                            "Complexometric titration",
                                            "Precipitation titration",
                                            "Direct titration",
                                            "Back titration"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of titration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-standards-and-regulation",
                                        "name": "Standards and regulation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "ISO 385, issued by the International Organization for Standardization, specifies requirements for laboratory burettes.",
                                            "United States Pharmacopeia-National Formulary, published by the United States Pharmacopeial Convention, includes titrimetric procedures for pharmaceutical analysis."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of titration 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 acid or base content in chemical products and food.",
                                            "Measuring water hardness by complexometric titration.",
                                            "Assaying pharmaceutical ingredients.",
                                            "Determining water content using Karl Fischer titration.",
                                            "Measuring chloride by precipitation titration."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of titration 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": "Volume of titrant delivered",
                                                "typical_range": "Commonly a few to tens of millilitres in conventional laboratory titrations; method-dependent",
                                                "unit": "mL"
                                            },
                                            {
                                                "quantity": "Amount concentration of titrant",
                                                "typical_range": "Often 0.01-0.1 in routine volumetric analysis; method-dependent",
                                                "unit": "mol/L"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of titration 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": [
                                            "The detected endpoint can differ from the stoichiometric equivalence point, causing systematic error.",
                                            "Incorrect or changing titrant concentration biases the calculated result.",
                                            "Interfering substances, incomplete reactions or slow reaction kinetics can invalidate the assumed stoichiometry.",
                                            "Burette reading errors, leaks, trapped air or endpoint overshoot distort the delivered-volume measurement.",
                                            "Hazards depend on the reagents and can include corrosive solutions, toxic chemicals and flammable solvents."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of titration 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": "Medication dose titration",
                                                "difference": "Adjusts a medicine dose according to response or tolerability; it does not determine analyte quantity through a stoichiometric analytical reaction."
                                            },
                                            {
                                                "name": "Gravimetric analysis",
                                                "difference": "Determines analyte quantity from a measured mass, usually of an isolated product."
                                            },
                                            {
                                                "name": "Endpoint",
                                                "difference": "The experimentally detected signal used to stop a titration; it is a feature of the procedure rather than the procedure itself."
                                            },
                                            {
                                                "name": "Equivalence point",
                                                "difference": "The condition at which titrant and analyte have reacted in their stoichiometric proportions, which need not coincide exactly with the detected endpoint."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of titration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does vr.tr.titration denote analytical chemistry titration or clinical dose titration, given its INF / INF.MED placement and missing definition?",
                "Does an existing Vercy world model already own this concept, requiring a registry link instead of a separate publication?",
                "Which authoritative method definitions should anchor the scope, including coulometric and indirect titrations?",
                "Should the registered thing primarily represent a method specification, with individual executions linked to it, or explicitly own both?",
                "Which application-specific sources establish endpoint rules, interference limits, acceptance criteria and uncertainty requirements for the titrations this model must support?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 15,
                "questions": 25
            }
        },
        "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 titration, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to recognise an analytical titration, assess whether its endpoint supports a defensible quantitative result, and identify appropriate next actions.",
            "characteristics": {
                "substance": "information",
                "origin": "conceptual",
                "agency": "inert"
            },
            "whatYouCanDoWithIt": [
                "read and interpreted",
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: Volhard method, conductometric titration, acid–base titration, potentiometric titration, complexometric titration, dichromatometry, amperometric titration, permanganometry, Mohr’s Method, Karl Fischer titration, redox titration, back titration.",
                "16 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 70 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 titration, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "content that has to be carried by something else",
            "physicalCharacter": [
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "read it and act on what it says",
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "What is seen is a copy or a performance, not the work. Recognising the work means recognising the content through whatever is carrying it."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "Volhard method",
                        "conductometric titration",
                        "acid–base titration",
                        "potentiometric titration",
                        "complexometric titration",
                        "dichromatometry",
                        "amperometric titration",
                        "permanganometry",
                        "Mohr’s Method",
                        "Karl Fischer titration",
                        "redox titration",
                        "back titration"
                    ]
                }
            ],
            "standing": "Described in 70 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 16 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one titration from another, and a titration 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 titration, 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 titration, 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 titration 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 titration, 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 titration, 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 titration 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 titration 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 titration, 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 titration, 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 titration 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 titration from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a titration, 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 titration, 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 titration 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 titration 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 titration between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a titration, 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 titration, 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 titration 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 titration, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a titration 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 titration, 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 titration, 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 titration 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 titration 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 titration contains and in what form it is held.",
                                        "questions": [
                                            {
                                                "id": "content-and-format-q01",
                                                "text": "What identifies and describes the content of a titration, 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 titration, 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 titration 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 titration and the period it survives.",
                                        "questions": [
                                            {
                                                "id": "access-rules-q01",
                                                "text": "What identifies and describes access to a titration, 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 titration, 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 titration 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 titration 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 titration, 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 titration 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 titration 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 titration, 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 titration, 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 titration 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 titration and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a titration, 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 titration, 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 titration 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 titration is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a titration, 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 titration, 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 titration 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
            }
        }
    }
}