{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T09:48:11Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 17.9, "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: 01a09503-3c4d-7763-a4d9-0b582f83134c\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: Fokker D.X\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1001 regi", "usd": 0.0, "recall": true }, "codex": { "seconds": 79.9, "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: 01a09503-3c44-7262-92c7-f25095cc0d45\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: Fokker D.X\nRegistry id: vr.tr.fokker-d-x\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nCo" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:51:39+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:32+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q799582", "registryId": "vr.tr.fokker-d-x", "name": "Fokker D.X", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q799582/", "model": { "registry_id": "vr.tr.fokker-d-x", "name": "Fokker D.X", "purpose": "Enable an agent to identify the Fokker D.X aircraft type, distinguish documented configurations, and determine what evidence is needed to assess an associated airframe or representation.", "definition": "The Fokker D.X was a Dutch single-seat, piston-engined parasol-monoplane fighter aircraft type developed by Fokker in the early 1920s.", "scope_statement": "This model owns the type-level identity, configuration boundaries and assessment requirements of Fokker D.X, registry vr.tr.fokker-d-x, within PHY / PHY.OBJ; individual aircraft supply evidence without becoming separate type definitions.", "in_scope": [ "D.X designation, identification evidence and relationships to neighbouring Fokker designs", "Parasol-wing configuration and documented airframe arrangements", "Hispano-Suiza engine installation, cooling arrangement and associated controls", "Customer-specific equipment, including documented ski installation", "Configuration-qualified performance, structural condition and permitted assessment actions" ], "out_of_scope": [ "The complete family of Fokker fighter aircraft", "Individual airframe ownership, restoration and flight logs", "The Hispano-Suiza engine family as an independent product model", "Military organisations and campaigns involving operators", "Replicas, scale models and illustrations treated as original aircraft", "Generic aircraft certification rules presented as historical D.X requirements" ], "distinguishing_features": [ "Check the D.X designation against dated records and identifiable photographs; a similar Fokker name alone is insufficient.", "Use the parasol monoplane arrangement as an identification discriminator, then verify the airframe against D.X-specific evidence. [Fokker historical archive](https://www.fokker-history.com/en-gb/d-x)", "Check the reported Hispano-Suiza 8Fb installation and retractable radiators beside the engine as a combined discriminator. [Fokker historical archive](https://www.fokker-history.com/en-gb/d-x)", "Treat ski undercarriage as a documented Finnish configuration, rather than a feature required of every D.X. [Fokker historical archive](https://www.fokker-history.com/en-gb/d-x)", "Do not identify an aircraft as D.X solely through an asserted relationship to D.VIII; the development relationship requires reconciliation." ], "characteristics": [ { "name": "Designation evidence", "kind": "relation", "unit_or_values": "D.X designation linked to dated documents, photographs and identifiers", "why_it_matters": "Prevents confusion between similarly named Fokker designs and individual aircraft." }, { "name": "Wing arrangement", "kind": "category", "unit_or_values": "Parasol monoplane; configuration evidence required", "why_it_matters": "Provides an observable test of type identity." }, { "name": "Engine installation", "kind": "relation", "unit_or_values": "Engine designation, installation drawing and applicable airframe configuration", "why_it_matters": "Separates installed equipment from proposed engines or later substitutions." }, { "name": "Cooling arrangement", "kind": "category", "unit_or_values": "Radiator location, movement mechanism and documented control arrangement", "why_it_matters": "Supports identification and assessment of cooling-system completeness." }, { "name": "Landing equipment", "kind": "category", "unit_or_values": "Wheels, skis or unresolved; linked to aircraft and date", "why_it_matters": "Prevents a customer-specific installation from becoming the type-wide baseline." }, { "name": "Dimensions and mass", "kind": "measurement", "unit_or_values": "Span and length in m; wing area in m²; empty and loaded mass in kg", "why_it_matters": "Supports identification and comparison when measurement definitions and configuration are recorded." }, { "name": "Performance evidence", "kind": "measurement", "unit_or_values": "Speed in km/h; altitude in m; climb time in min; endurance in h, with test conditions", "why_it_matters": "Keeps advertised or measured performance separate from operational limitations." }, { "name": "Assessment status", "kind": "state", "unit_or_values": "Unidentified, provisionally identified, documented configuration, condition assessed, action authorised", "why_it_matters": "Prevents identification or historical specifications from being mistaken for evidence of present airworthiness." } ], "affordances": [ "Compare an aircraft photograph or record with documented D.X identification features.", "Associate a serial number or customer record with an evidenced D.X configuration.", "Identify missing evidence before accepting a dimensional or performance claim.", "Prepare a configuration-specific inspection or conservation brief.", "Separate original equipment, later replacements and reconstructed details.", "Determine which additional inspections and authorisations a proposed ground or flight activity requires." ], "agent_conduct": { "may": [ "Describe the fighter's parasol-wing design and its service history.", "Support historians in cataloguing records and photographs." ], "must_not": [ "Present uncertain production or service details as established fact.", "Confuse it with similarly numbered types from the same maker.", "Misattribute photographs or documents." ], "requires_human": [ "Publishing interpretations where sources disagree." ] }, "ethics": { "considerations": [ "Accurate records of interwar military aircraft help readers understand the period honestly." ], "affected_parties": [ "Historians", "Readers of aviation history" ] }, "owners": { "steward": "Nobody owns the design history; archives and museums hold the surviving records.", "master_systems": [] }, "visual_identification": [ "A single-seat monoplane with the wing carried above the fuselage on struts.", "A nose-mounted piston engine and an open cockpit beneath the wing trailing edge." ], "failure_modes_and_hazards": [ "Scarce sources mean claims about the type are easily repeated in error." ], "what_it_is_for": [ "This aircraft type was developed in the early 1920s as a single-seat fighter for military aviation.", "It is now chiefly encountered in aviation history, archival records and scale representations concerned with early parasol-monoplane fighter development." ], "facets_not_applicable": { "interfaces": "No verified type-specific standard or regulation can be assigned without evidence of the aircraft's jurisdiction, service status and historical approval basis." } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q799582: Fokker D.X", "url": "https://www.wikidata.org/wiki/Q799582", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Fokker D.X", "url": "https://en.wikipedia.org/wiki/Fokker_D.X", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "designation-and-design-boundary", "name": "Designation and design boundary", "description": "Establish which records and physical configurations belong to Fokker D.X.", "rationale": "Similar Fokker designations and disputed ancestry make name matching insufficient.", "layers": [ { "id": "designation-evidence", "name": "Designation evidence", "description": "Connect the registry concept to historical identification records.", "findings": [ { "id": "documented-type-identification", "name": "Documented type identification", "description": "Require explicit evidence connecting a designation, image or airframe record to D.X.", "questions": [ { "text": "Which manufacturer or operator record explicitly identifies this aircraft as Fokker D.X?", "kind": "provenance", "id": "documented-type-identification-q01" }, { "text": "Does the identifier describe the aircraft type, an individual airframe or a later representation?", "kind": "boundary", "id": "documented-type-identification-q02" } ] } ] }, { "id": "development-relationships", "name": "Development relationships", "description": "Resolve ancestry separately from membership in the D.X type.", "findings": [ { "id": "predecessor-and-neighbour-separation", "name": "Predecessor and neighbour separation", "description": "Track competing accounts of V.41 and D.VIII relationships without merging those designs into this entry.", "questions": [ { "text": "Which contemporary evidence establishes the relationship between V.41 and the completed D.X?", "kind": "provenance", "id": "predecessor-and-neighbour-separation-q01" }, { "text": "Which structural or installation differences distinguish D.X from D.VIII and D.IX?", "kind": "boundary", "id": "predecessor-and-neighbour-separation-q02" } ] } ] } ] }, { "id": "parasol-airframe", "name": "Parasol airframe", "description": "Describe the D.X wing, supporting structure and flight-control configuration.", "rationale": "Recognition and structural assessment depend on the actual D.X arrangement.", "layers": [ { "id": "geometry-and-construction", "name": "Geometry and construction", "description": "Establish configuration-qualified dimensions and construction evidence.", "findings": [ { "id": "wing-and-fuselage-baseline", "name": "Wing and fuselage baseline", "description": "Record the parasol-wing geometry and verify materials, joints and attachment arrangements from suitable evidence.", "questions": [ { "text": "Which drawings establish D.X wing dimensions, attachment positions and fuselage geometry?", "kind": "measurement", "id": "wing-and-fuselage-baseline-q01" }, { "text": "What evidence identifies the original materials and construction of the wing and fuselage?", "kind": "provenance", "id": "wing-and-fuselage-baseline-q02" } ] } ] }, { "id": "controls-and-structural-integrity", "name": "Controls and structural integrity", "description": "Connect original control arrangements and structural history to assessment requirements.", "findings": [ { "id": "control-continuity-and-wing-evidence", "name": "Control continuity and wing evidence", "description": "Require configuration-specific control and structural evidence; the archive reports a wing failure during a Spanish demonstration dive. [Fokker historical archive](https://www.fokker-history.com/en-gb/d-x)", "questions": [ { "text": "Which records establish D.X control routing, travel and attachment inspection points?", "kind": "provenance", "id": "control-continuity-and-wing-evidence-q01" }, { "text": "What investigation evidence identifies the failed wing configuration, failure mechanism and any resulting modifications?", "kind": "provenance", "id": "control-continuity-and-wing-evidence-q02" }, { "text": "What unresolved structural evidence would prevent approval of a proposed load-bearing or flight activity?", "kind": "action", "id": "control-continuity-and-wing-evidence-q03" } ] } ] } ] }, { "id": "engine-and-retractable-cooling", "name": "Engine and retractable cooling", "description": "Model the engine installation and distinctive radiator arrangement.", "rationale": "The installed powerplant and cooling mechanism affect identification, completeness and operating assessment.", "layers": [ { "id": "installed-propulsion", "name": "Installed propulsion", "description": "Separate the documented engine installation from proposals and replacements.", "findings": [ { "id": "engine-propeller-compatibility", "name": "Engine and propeller compatibility", "description": "Use the reported 300 hp Hispano-Suiza 8Fb as a research baseline, with configuration-specific verification. [Fokker historical archive](https://www.fokker-history.com/en-gb/d-x)", "questions": [ { "text": "Which engine subtype and power-rating convention are documented for each D.X configuration?", "kind": "measurement", "id": "engine-propeller-compatibility-q01" }, { "text": "Which propeller and mounting specifications are supported for that installation?", "kind": "provenance", "id": "engine-propeller-compatibility-q02" } ] } ] }, { "id": "cooling-controls-and-consumables", "name": "Cooling controls and consumables", "description": "Establish how the radiator installation and supporting engine services were configured.", "findings": [ { "id": "radiator-operation-and-service-evidence", "name": "Radiator operation and service evidence", "description": "Record radiator movement, controls and service requirements without assuming modern interlocks or generic engine instructions apply.", "questions": [ { "text": "How were the D.X side radiators moved and retained, and what evidence describes their operating positions?", "kind": "definition", "id": "radiator-operation-and-service-evidence-q01" }, { "text": "Which instructions specify fuel, lubricant, coolant and inspection requirements for the installed engine?", "kind": "provenance", "id": "radiator-operation-and-service-evidence-q02" }, { "text": "What checks must precede any proposed engine run on an associated airframe?", "kind": "action", "id": "radiator-operation-and-service-evidence-q03" } ] } ] } ] }, { "id": "customer-and-equipment-configurations", "name": "Customer and equipment configurations", "description": "Distinguish delivered aircraft configurations and documented equipment changes.", "rationale": "A particular customer's equipment must not be applied to every D.X.", "layers": [ { "id": "delivery-and-landing-equipment", "name": "Delivery and landing equipment", "description": "Link operator records and landing installations to specific aircraft and dates.", "findings": [ { "id": "wheel-and-ski-applicability", "name": "Wheel and ski applicability", "description": "Treat the documented Finnish ski-equipped aircraft as configuration evidence requiring airframe-level attribution.", "questions": [ { "text": "Which serial numbers and acceptance records establish the Spanish and Finnish D.X deliveries?", "kind": "provenance", "id": "wheel-and-ski-applicability-q01" }, { "text": "Was the Finnish ski installation original, interchangeable or a later modification, and to which aircraft did it apply?", "kind": "boundary", "id": "wheel-and-ski-applicability-q02" } ] } ] }, { "id": "military-fit", "name": "Military fit", "description": "Identify installed military equipment separately from advertised capability.", "findings": [ { "id": "armament-and-equipment-authenticity", "name": "Armament and equipment authenticity", "description": "Require evidence for armament, sights and associated fittings on the configuration being described.", "questions": [ { "text": "Which delivery documents establish the armament and sighting equipment actually fitted to each customer configuration?", "kind": "provenance", "id": "armament-and-equipment-authenticity-q01" }, { "text": "Does an observed fitting represent original service equipment, a replacement or a display reconstruction?", "kind": "boundary", "id": "armament-and-equipment-authenticity-q02" } ] } ] } ] }, { "id": "performance-and-assessment-limits", "name": "Performance and assessment limits", "description": "Define how D.X performance claims and present assessment decisions must be qualified.", "rationale": "Historical specifications cannot establish the condition or permissible use of an individual aircraft.", "layers": [ { "id": "qualified-performance", "name": "Qualified performance", "description": "Bind dimensions, loading and performance to their measurement context.", "findings": [ { "id": "test-configuration-and-limits", "name": "Test configuration and limits", "description": "Separate measured results, advertised figures and documented operating restrictions.", "questions": [ { "text": "What mass, engine setting, altitude and landing equipment accompanied each reported D.X performance figure?", "kind": "measurement", "id": "test-configuration-and-limits-q01" }, { "text": "Which contemporary documents establish operating limits rather than merely reported maximum performance?", "kind": "provenance", "id": "test-configuration-and-limits-q02" } ] } ] }, { "id": "condition-and-permitted-actions", "name": "Condition and permitted actions", "description": "Specify the evidence needed before moving, restoring, running or flying an associated aircraft.", "findings": [ { "id": "authenticity-condition-and-authority", "name": "Authenticity, condition and authority", "description": "Keep historical conformity, physical condition and action authorisation distinct.", "questions": [ { "text": "Which original D.X components, replacements and undocumented alterations are present in the assessed airframe?", "kind": "provenance", "id": "authenticity-condition-and-authority-q01" }, { "text": "What inspections and responsible authority are required for the proposed movement, engine run or flight in its present jurisdiction?", "kind": "action", "id": "authenticity-condition-and-authority-q02" }, { "text": "Which historical acceptance requirements can actually be evidenced for this D.X configuration?", "kind": "provenance", "id": "authenticity-condition-and-authority-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 is recalled information, not source-checked research; verify the first-flight date, engine specification, production total and operators.", "No distinct D.X variants or reliable dimensions and performance figures are asserted here.", "The hazards listed are general consequences of the aircraft configuration, not documented D.X-specific defects or accident findings." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of Fokker D.X this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "scheme": "Fokker aircraft type designation", "value_or_pattern": "D.X", "note": "Identifies the aircraft design, not an individual airframe or its registration." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of Fokker D.X 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": [ "Developed for the military single-seat fighter role." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of Fokker D.X 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": [ "As with contemporary single-engine aircraft, engine failure could require a forced landing.", "Its conventional tailwheel landing-gear arrangement carried a risk of ground looping during takeoff or landing." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of Fokker D.X 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": "Fokker D.VIII", "difference": "An earlier Fokker parasol-monoplane fighter with a rotary engine; the D.X used a liquid-cooled inline engine." }, { "name": "Fokker D.XI", "difference": "A separate Fokker fighter design with a sesquiplane wing arrangement, rather than the D.X's single parasol wing." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of Fokker D.X this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "What contemporary records reconcile the competing accounts of D.X development from V.41 and its relationship to D.VIII?", "What factory and customer records establish the production total, delivery dates and serial-number allocation?", "What caused the reported Spanish demonstration wing failure, and were later aircraft structurally modified?", "Which original drawings, manuals and trials establish dimensions, performance, radiator operation and operating limits for each configuration?", "Do original airframes or substantial components survive, and what evidence distinguishes them from replicas or reconstructed exhibits?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 15, "questions": 28 } }