{ "model": { "rank": 2261, "code": "thing-q23384", "model_id": "vr.tr.tide", "name": "tide", "purpose": "Let an agent handle tides with times, heights, datums and local effects, and give safety information for coasts.", "family": "Thing Registry", "category": "Activities and processes", "status": "research-draft", "kind": "thing", "plane": "ACT", "domain": "ACT.EVT", "industry": "", "version": "", "url": "/models/thing/q23384/", "tier": 2, "score": 111, "payload": { "layer": "wikidata", "aliases": [ "mean high water spring", "flood tide", "river tide", "atmospheric tide", "dead tide", "low tide", "mixed tide", "high tide", "ebb tide", "storm flood", "king tide", "spring tide", "Perigean spring tide" ], "aliasCount": 13, "merged": 13, "knownIn": 111, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.tide-time", "source": { "dataset": "wikidata", "item": "Q23384", "url": "https://www.wikidata.org/wiki/Q23384", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T06:31:18Z", "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-Q23384", "registryId": "vr.tr.tide", "name": "tide", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "ACT.EVT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q23384/", "model": { "registry_id": "vr.tr.tide", "name": "tide", "purpose": "Let an agent handle tides with times, heights, datums and local effects, and give safety information for coasts.", "definition": "The periodic rise and fall of sea level caused mainly by the gravitational pull of the Moon and Sun and the Earth rotation, with high and low tides, spring and neap cycles, and tides in rivers and the atmosphere.", "what_it_is_for": "Navigation, coastal safety, fishing, energy and ecology.", "affordances": [ "predict tide times and heights", "plan navigation and coastal walks", "generate tidal energy", "study tidal ecosystems" ], "distinguishing_features": [ "Periodic, predictable", "Spring and neap cycles", "Heights refer to a datum", "Storm surges add to tides" ], "appearance": "Water rising and falling on shores; exposed flats at low tide.", "visual_identification": [ "Tide tables and gauges", "Terms such as spring tide, neap tide, flood tide", "Chart datum on nautical charts" ], "physical_properties": [ { "quantity": "tidal range", "typical_range": "0-16", "unit": "m", "note": "Bay of Fundy near 16 m" }, { "quantity": "semidiurnal period", "typical_range": "about 12.42", "unit": "hours", "note": "" } ], "families_and_kinds": [ "semidiurnal, diurnal and mixed tides", "spring and neap tides", "river tides and bores", "atmospheric and Earth tides" ], "related_models": [ { "relation": "is caused by", "target": "Moon and Sun", "why": "gravity" }, { "relation": "affects", "target": "body of water", "why": "coasts" }, { "relation": "combines with", "target": "storm surge", "why": "flooding" }, { "relation": "is used for", "target": "tidal energy", "why": "resource" } ], "identifiers": [ { "scheme": "tide gauge id", "value_or_pattern": "national or PSMSL station id", "note": "observations" } ], "standards_and_regulation": [ "National hydrographic office tide tables", "IHO standards for chart datums" ], "failure_modes_and_hazards": [ "People cut off by incoming tides", "Wrong datum in calculations", "Coastal flooding with surges" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "prediction", "name": "Prediction", "description": "Times and heights.", "rationale": "Tables give predictions.", "layers": [ { "id": "times", "name": "Times", "description": "High and low water.", "findings": [ { "id": "times-finding", "name": "Times", "description": "Tide times.", "questions": [ { "text": "When are high and low water at this place?", "kind": "measurement" }, { "text": "From which tide table?", "kind": "provenance" } ] } ] }, { "id": "heights", "name": "Heights", "description": "Datum.", "findings": [ { "id": "heights-finding", "name": "Heights", "description": "Heights and datum.", "questions": [ { "text": "What heights, relative to which datum?", "kind": "measurement" }, { "text": "How do local effects change them?", "kind": "boundary" } ] } ] } ] }, { "id": "cycles", "name": "Cycles", "description": "Spring and neap.", "rationale": "Cycles explain variation.", "layers": [ { "id": "spring-neap", "name": "Spring and neap", "description": "Monthly cycle.", "findings": [ { "id": "spring-neap-finding", "name": "Cycle", "description": "Tidal cycle.", "questions": [ { "text": "Is it a spring or neap period?", "kind": "definition" }, { "text": "How large is the range?", "kind": "measurement" } ] } ] }, { "id": "type", "name": "Type", "description": "Semidiurnal or diurnal.", "findings": [ { "id": "type-finding", "name": "Type", "description": "Tide type.", "questions": [ { "text": "What tide type occurs here?", "kind": "definition" }, { "text": "Why?", "kind": "definition" } ] } ] } ] }, { "id": "safety", "name": "Safety", "description": "Coastal risk.", "rationale": "Tides trap people.", "layers": [ { "id": "cutoff", "name": "Cut-off", "description": "Incoming tide.", "findings": [ { "id": "cutoff-finding", "name": "Cut-off", "description": "Cut-off risk.", "questions": [ { "text": "Could someone be cut off by the tide here?", "kind": "boundary" }, { "text": "What should they do?", "kind": "action" } ] } ] }, { "id": "flooding", "name": "Flooding", "description": "Surges.", "findings": [ { "id": "flooding-finding", "name": "Flooding", "description": "Flood risk.", "questions": [ { "text": "Is a storm surge expected on top of high tide?", "kind": "boundary" }, { "text": "Are warnings in force?", "kind": "provenance" } ] } ] } ] }, { "id": "uses", "name": "Uses", "description": "Navigation and energy.", "rationale": "Tides are used by people.", "layers": [ { "id": "navigation", "name": "Navigation", "description": "Under-keel clearance.", "findings": [ { "id": "navigation-finding", "name": "Navigation", "description": "Navigation.", "questions": [ { "text": "What depth will there be at this time?", "kind": "measurement" }, { "text": "Is it safe to transit?", "kind": "boundary" } ] } ] }, { "id": "energy", "name": "Energy", "description": "Tidal power.", "findings": [ { "id": "energy-finding", "name": "Energy", "description": "Tidal energy.", "questions": [ { "text": "What tidal energy potential exists here?", "kind": "measurement" }, { "text": "What are the environmental effects?", "kind": "boundary" } ] } ] } ] } ] }, "openQuestions": [ "Should tide types be separate entries?", "How should tide predictions be linked by station?", "How should safety advice be localised?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "event or period", "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 tide, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent handle tides with times, heights, datums and local effects, and give safety information for coasts.", "characteristics": { "substance": "activity", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: mean high water spring, flood tide, river tide, atmospheric tide, dead tide, low tide, mixed tide, high tide, ebb tide, storm flood, king tide, spring tide.", "13 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 111 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 tide, and on what evidence are they told apart?" ], "whatItIsMadeOf": "something that happens over time", "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": [ "Not a thing to see. Recognised by when it happened and who was involved, on the account of somebody." ], "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": [ "mean high water spring", "flood tide", "river tide", "atmospheric tide", "dead tide", "low tide", "mixed tide", "high tide", "ebb tide", "storm flood", "king tide", "spring tide" ] } ], "standing": "Described in 111 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 13 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 tide from another, and a tide 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 tide, 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 tide, 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 tide 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 tide, 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 tide, 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 tide 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 tide 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 tide, 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 tide, 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 tide 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 tide from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a tide, 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 tide, 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 tide 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 tide 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 tide between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a tide, 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 tide, 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 tide 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 tide, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a tide 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 tide, 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 tide, 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 tide is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "process-and-outcome", "name": "Process, inputs and outcome", "description": "How a tide proceeds, what it needs and what it leaves behind.", "rationale": "An activity is known by its steps and its results, and both have to be recordable while it is still running.", "layers": [ { "id": "steps-and-sequence", "name": "Steps and sequence", "description": "The steps of a tide, their order and what may run in parallel.", "findings": [ { "id": "steps-and-preconditions", "name": "Steps, preconditions and completion", "description": "What has to be true before each step of a tide and what marks it done.", "questions": [ { "id": "steps-and-preconditions-q01", "text": "What identifies and describes a step of a tide, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "steps-and-preconditions-q02", "text": "Who or what asserted this about a step of a tide, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "steps-and-preconditions-q03", "text": "What may an agent decide or do once a step of a tide is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "inputs-and-results", "name": "Inputs, resources and results", "description": "What a tide consumes and what it produces.", "findings": [ { "id": "inputs-and-outputs", "name": "Inputs, outputs and side effects", "description": "The resources a tide takes and the results it leaves, wanted or not.", "questions": [ { "id": "inputs-and-outputs-q01", "text": "What identifies and describes the inputs and results of a tide, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "inputs-and-outputs-q02", "text": "Who or what asserted this about the inputs and results of a tide, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "inputs-and-outputs-q03", "text": "What may an agent decide or do once the inputs and results of a tide is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "extent-and-dating", "name": "Temporal extent and dating", "description": "When tide began and ended, and who says so.", "rationale": "Dates for events are conventions held by historiographies that disagree, and a single confident date hides the disagreement.", "layers": [ { "id": "dating", "name": "Dating and calendar", "description": "Start, end, granularity and the calendar used.", "findings": [ { "id": "date-record", "name": "Dates, granularity and authority", "description": "What is dated, how precisely, and on whose account.", "questions": [ { "id": "date-record-q01", "text": "What start and end are conventionally given for tide, at what granularity, in which calendar?", "kind": "definition" }, { "id": "date-record-q02", "text": "Which accounts date it differently, and on what grounds?", "kind": "provenance" } ] } ] }, { "id": "membership-of-the-event", "name": "What counts as part of it", "description": "Sub-events included or excluded, and by whom.", "findings": [ { "id": "inclusion", "name": "Inclusion and exclusion", "description": "The episodes treated as inside the event and those left out.", "questions": [ { "id": "inclusion-q01", "text": "Which episodes are counted as part of tide, and which are treated as separate?", "kind": "boundary" }, { "id": "inclusion-q02", "text": "Whose framing is being followed in that inclusion, and who frames it otherwise?", "kind": "provenance" } ] } ] } ] }, { "id": "participants-and-consequence", "name": "Participants, causes and consequences", "description": "Who took part in tide and what is claimed to follow from it.", "rationale": "Causation around events is asserted rather than observed, so each claim needs the party asserting it.", "layers": [ { "id": "participants", "name": "Participants and roles", "description": "Parties involved and what each did.", "findings": [ { "id": "participant-record", "name": "Parties and their roles", "description": "Who is recorded as involved and in what capacity.", "questions": [ { "id": "participant-record-q01", "text": "Which parties took part in tide, in what roles, and on whose account?", "kind": "provenance" }, { "id": "participant-record-q02", "text": "Where do accounts disagree about who was involved?", "kind": "boundary" } ] } ] }, { "id": "consequences", "name": "Causes and consequences", "description": "What is claimed to have caused it and followed from it.", "findings": [ { "id": "causal-claims", "name": "Causal claims and who makes them", "description": "Antecedents and outcomes as attributed claims.", "questions": [ { "id": "causal-claims-q01", "text": "What causes and consequences are attributed to tide, and by whom?", "kind": "provenance" }, { "id": "causal-claims-q02", "text": "What would an agent need before treating such a claim as settled rather than contested?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a tide 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 tide and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a tide, 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 tide, 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 tide 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 tide is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a tide, 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 tide, 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 tide 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 } } } }