{ "model": { "rank": 475, "code": "thing-q129", "model_id": "vr.tr.thursday", "name": "Thursday", "purpose": "Let an agent handle Thursday as a weekday with numbering conventions, legal and working-time rules and named occurrences.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.TME", "industry": "", "version": "", "url": "/models/thing/q129/", "tier": 2, "score": 266, "payload": { "layer": "wikidata", "aliases": [ "Thursday the 20th", "Easter Thursday", "October 10, 1907", "10 September 1896", "June 11, 1914", "2 January 1800", "9 January 1800", "February 4, 1909", "March 16, 1837", "March 22, 1832", "June 4, 1914", "June 18, 1914", "September 19, 1907", "Throwback Thursday", "March 23, 1837", "first Thursday of the month", "second Thursday of the month", "third Thursday of the month", "fourth Thursday of the month", "fifth Thursday of the month", "last Thursday of the month", "Thursday of the month" ], "aliasCount": 22, "merged": 22, "knownIn": 266, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q129", "url": "https://www.wikidata.org/wiki/Q129", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T05:41:46Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q129", "registryId": "vr.tr.thursday", "name": "Thursday", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.TME" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q129/", "model": { "registry_id": "vr.tr.thursday", "name": "Thursday", "purpose": "Let an agent handle Thursday as a weekday with numbering conventions, legal and working-time rules and named occurrences.", "definition": "The day of the week between Wednesday and Friday, day 4 in ISO 8601 weeks; the day on which the ISO week-numbering year is anchored, since week 1 contains the first Thursday.", "what_it_is_for": "Scheduling, work patterns, trading hours and observances.", "affordances": [ "schedule around it", "number it, as day 4 in ISO 8601", "apply working-time and trading rules to it", "identify named occurrences" ], "distinguishing_features": [ "Day 4 in ISO weeks; numbering differs in other conventions", "Working day or weekend depending on country", "Named occurrences carry commercial or religious meaning", "Specific dates in the registry aliases are instances, not the weekday" ], "appearance": "Not a thing to see; a day on the calendar.", "visual_identification": [ "Calendar position between Wednesday and Friday", "ISO 8601 weekday number 4", "Named occurrences such as Maundy Thursday and Thanksgiving in the United States" ], "physical_properties": [], "families_and_kinds": [ "ordinary occurrences", "named occurrences such as Maundy Thursday and Thanksgiving in the United States" ], "related_models": [ { "relation": "is a kind of", "target": "day", "why": "weekday" }, { "relation": "is part of", "target": "week", "why": "seven days" }, { "relation": "is regulated by", "target": "working time and trading law", "why": "rules" }, { "relation": "names", "target": "calendar date", "why": "dates fall on weekdays" } ], "identifiers": [ { "scheme": "ISO 8601 weekday number", "value_or_pattern": "4", "note": "Monday is 1" } ], "standards_and_regulation": [ "ISO 8601", "Public holiday law", "Working time law" ], "failure_modes_and_hazards": [ "Week-start mismatches in software", "Assuming the weekend is the same everywhere", "Mis-computed day of week for historical dates" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "calendar", "name": "Calendar", "description": "Position and numbering.", "rationale": "Numbering differs between systems.", "layers": [ { "id": "number", "name": "Number", "description": "ISO and other conventions.", "findings": [ { "id": "number-finding", "name": "Numbering", "description": "Weekday number.", "questions": [ { "text": "Which number does Thursday have in this system?", "kind": "definition" }, { "text": "Does the week start on Monday or Sunday here?", "kind": "boundary" } ] } ] }, { "id": "date", "name": "Date", "description": "Which occurrence.", "findings": [ { "id": "date-finding", "name": "Occurrence", "description": "Specific date.", "questions": [ { "text": "Which Thursday is meant, by date?", "kind": "definition" }, { "text": "Was the weekday computed correctly for historical calendars?", "kind": "boundary" } ] } ] } ] }, { "id": "work", "name": "Work", "description": "Working patterns.", "rationale": "Weekend definitions vary by country.", "layers": [ { "id": "status", "name": "Working status", "description": "Working day or weekend.", "findings": [ { "id": "status-finding", "name": "Status", "description": "Working status.", "questions": [ { "text": "Is Thursday a working day or part of the weekend here?", "kind": "boundary" }, { "text": "Which sectors differ?", "kind": "boundary" } ] } ] }, { "id": "hours", "name": "Hours", "description": "Opening and trading.", "findings": [ { "id": "hours-finding", "name": "Hours", "description": "Opening hours.", "questions": [ { "text": "Which trading or opening rules apply on this day?", "kind": "boundary" }, { "text": "Are public services open?", "kind": "definition" } ] } ] } ] }, { "id": "named", "name": "Named occurrences", "description": "Special days.", "rationale": "Some occurrences have names and meaning.", "layers": [ { "id": "names", "name": "Names", "description": "Named days.", "findings": [ { "id": "names-finding", "name": "Named days", "description": "Named occurrences.", "questions": [ { "text": "Which named Thursdays fall this year?", "kind": "measurement" }, { "text": "What do they mark?", "kind": "definition" } ] } ] }, { "id": "customs", "name": "Customs", "description": "Observances and superstitions.", "findings": [ { "id": "customs-finding", "name": "Customs", "description": "Customs.", "questions": [ { "text": "Which customs or observances are tied to this day?", "kind": "definition" }, { "text": "Do they vary by culture?", "kind": "boundary" } ] } ] } ] }, { "id": "deadlines", "name": "Deadlines", "description": "Scheduling and law.", "rationale": "Deadlines and schedules depend on weekdays.", "layers": [ { "id": "scheduling", "name": "Scheduling", "description": "Time zones.", "findings": [ { "id": "scheduling-finding", "name": "Scheduling", "description": "Scheduling across zones.", "questions": [ { "text": "Across time zones, is it still Thursday for all participants?", "kind": "boundary" }, { "text": "How should the schedule be shown?", "kind": "action" } ] } ] }, { "id": "legal", "name": "Legal deadlines", "description": "Counting days.", "findings": [ { "id": "legal-finding", "name": "Deadlines", "description": "Deadline rules.", "questions": [ { "text": "How do legal deadlines treat this day?", "kind": "boundary" }, { "text": "Is it a business day?", "kind": "boundary" } ] } ] } ] } ] }, "openQuestions": [ "Should weekdays share one model with parameters?", "How should named occurrences be linked?", "The registry entry has merged specific dates as aliases; should they be removed?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "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 Thursday, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent handle Thursday as a weekday with numbering conventions, legal and working-time rules and named occurrences.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: Thursday the 20th, Easter Thursday, October 10, 1907, 10 September 1896, June 11, 1914, 2 January 1800, 9 January 1800, February 4, 1909, March 16, 1837, March 22, 1832, June 4, 1914, June 18, 1914.", "22 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 266 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 Thursday, 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": [ { "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": [ "Thursday the 20th", "Easter Thursday", "October 10, 1907", "10 September 1896", "June 11, 1914", "2 January 1800", "9 January 1800", "February 4, 1909", "March 16, 1837", "March 22, 1832", "June 4, 1914", "June 18, 1914" ] } ], "standing": "Described in 266 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 22 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 Thursday from another, and a Thursday 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 Thursday, 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 Thursday, 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 Thursday 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 Thursday, 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 Thursday, 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 Thursday 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 Thursday 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 Thursday, 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 Thursday, 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 Thursday 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 Thursday from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a Thursday, 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 Thursday, 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 Thursday 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 Thursday 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 Thursday between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a Thursday, 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 Thursday, 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 Thursday 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 Thursday, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a Thursday 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 Thursday, 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 Thursday, 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 Thursday 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 Thursday 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 Thursday 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 Thursday 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 Thursday 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 Thursday?", "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 Thursday?", "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 Thursday 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 Thursday and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a Thursday, 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 Thursday, 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 Thursday 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 Thursday is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a Thursday, 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 Thursday, 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 Thursday 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 } } } }