{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T11:53:13Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 17.5,
        "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: 01a09575-c711-7e51-a4ae-05d7cbf22c73\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: Paraguayan harp\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 044: 1001",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 75.1,
        "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: 01a09575-c711-77e1-9e27-59e9035a8809\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: Paraguayan harp\nRegistry id: vr.tr.paraguayan-harp\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: ("
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:53:40+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "failure_modes_and_hazards",
        "owners",
        "visual_identification"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:30+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q3623688",
    "registryId": "vr.tr.paraguayan-harp",
    "name": "Paraguayan harp",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q3623688/",
  "model": {
    "registry_id": "vr.tr.paraguayan-harp",
    "name": "Paraguayan harp",
    "purpose": "Enable an agent to recognise a Paraguayan harp, assess its musical and physical condition, and determine suitable playing, tuning, care and repair actions.",
    "definition": "The Paraguayan harp is a lightweight wooden diatonic frame harp associated with Paraguay, typically strung with nylon and played with both hands to provide melody, harmony and accompaniment.",
    "scope_statement": "This model owns the Paraguayan harp as a culturally identified acoustic instrument kind, including the construction, stringing, tuning and condition information needed to assess individual examples without treating one maker's design as universal.",
    "in_scope": [
      "Identification as a Paraguayan harp and evidence for that attribution",
      "Frame, soundbox, soundboard, neck and string attachment arrangements",
      "String inventory, pitch range, tuning and any pitch-altering fittings",
      "Playing posture, hand access and instrument-specific technique compatibility",
      "Structural condition, tuning stability, string replacement and transport requirements"
    ],
    "out_of_scope": [
      "The general harp operating principle and characteristics inherited from a broader harp model",
      "Other regional harp traditions as independent instrument kinds",
      "Individual compositions, arrangements and recordings",
      "Musicians, makers and workshops as people or organisations",
      "Paraguayan musical heritage, festivals and performance practices beyond their relationship to the instrument"
    ],
    "distinguishing_features": [
      "Check maker attribution, documented provenance or informed identification connecting the instrument to the Paraguayan harp tradition; appearance alone may not distinguish neighbouring regional harps.",
      "Check for a non-pedal configuration with individually tuned strings, distinguishing the usual Paraguayan form from a concert pedal harp while recording modified examples.",
      "Compare soundbox profile, neck construction, string-plane placement and playing orientation with documented Paraguayan examples rather than relying on a generic triangular harp silhouette.",
      "Examine string layout and tuning alongside provenance; neither a diatonic tuning nor a particular string count alone establishes Paraguayan identity."
    ],
    "characteristics": [
      {
        "name": "Tradition attribution",
        "kind": "relation",
        "unit_or_values": "Links to maker records, provenance documents or identified expert assessments",
        "why_it_matters": "Supports identification where construction overlaps with other Latin American harps."
      },
      {
        "name": "Construction variant",
        "kind": "category",
        "unit_or_values": "Maker-described variant; observed modifications; attribution uncertain",
        "why_it_matters": "Prevents one workshop's proportions or fittings from becoming requirements for the entire kind."
      },
      {
        "name": "Installed string count",
        "kind": "measurement",
        "unit_or_values": "strings, with missing positions recorded separately",
        "why_it_matters": "Describes the actual string layout and supports replacement planning."
      },
      {
        "name": "String specification by position",
        "kind": "category",
        "unit_or_values": "Material, construction, diameter in mm and supplier or maker designation where known",
        "why_it_matters": "Similar-looking strings may impose different loads or respond differently under the fingers."
      },
      {
        "name": "Speaking length by string",
        "kind": "measurement",
        "unit_or_values": "mm between effective vibrating endpoints",
        "why_it_matters": "Helps assess replacement-string compatibility with the intended pitch."
      },
      {
        "name": "Pitch map and reference",
        "kind": "state",
        "unit_or_values": "Pitch per string, reference frequency in Hz and deviation in cents",
        "why_it_matters": "Makes the actual tuning explicit rather than inferring it from string count or instrument name."
      },
      {
        "name": "Pitch-altering provision",
        "kind": "category",
        "unit_or_values": "None observed; fitted mechanism described; manual technique documented; unknown",
        "why_it_matters": "Determines which chromatic changes are available during performance and which require retuning."
      },
      {
        "name": "String-plane and hand-access geometry",
        "kind": "measurement",
        "unit_or_values": "String spacing and neck or soundbox offsets in mm, indexed by position",
        "why_it_matters": "Supports assessment of hand access and compatibility with intended Paraguayan harp techniques."
      },
      {
        "name": "Playing support and orientation",
        "kind": "state",
        "unit_or_values": "Observed support points, tilt, player position and stability",
        "why_it_matters": "Connects physical setup to reach, balance and safe handling."
      },
      {
        "name": "Structural and acoustic condition",
        "kind": "state",
        "unit_or_values": "Located observations of cracks, joint movement, deformation, buzzing and tuning drift",
        "why_it_matters": "Separates musical adjustment needs from conditions that may require a harp repair specialist."
      }
    ],
    "affordances": [
      "Compare an instrument's attribution and construction with documented Paraguayan harp examples.",
      "Map its strings and tuning to the range and pitch requirements of an intended arrangement.",
      "Assess whether its spacing, orientation and fittings support the player's intended techniques.",
      "Tune within documented string and instrument limits, checking for instability or distress.",
      "Specify replacement strings from verified position-level information.",
      "Plan supported storage, transport or specialist repair from the instrument's construction and condition."
    ],
    "agent_conduct": {
      "may": [
        "Describe the Paraguayan harp and its place in Paraguayan music from reputable sources.",
        "Help a user tune, restring or play one."
      ],
      "must_not": [
        "Misattribute recordings or compositions for it.",
        "Present a factory instrument as made by a named luthier without evidence.",
        "Misrepresent its cultural origins."
      ],
      "requires_human": [
        "Restoring or selling a historic instrument."
      ]
    },
    "ethics": {
      "considerations": [
        "It is a national symbol and part of living tradition.",
        "Makers and players deserve credit for their work."
      ],
      "affected_parties": [
        "Players and teachers",
        "Luthiers",
        "Buyers"
      ]
    },
    "owners": {
      "steward": "The person who owns and plays it.",
      "master_systems": []
    },
    "visual_identification": [
      "A light wooden frame harp with a tall curved neck and many nylon strings.",
      "Played standing or seated, tilted against the shoulder, without pedals."
    ],
    "failure_modes_and_hazards": [
      "High total string tension can crack the soundboard or neck."
    ],
    "what_it_is_for": [
      "The Paraguayan harp is played in Paraguayan folk music and related regional traditions as a solo instrument or alongside singers and instrumental ensembles.",
      "Performers use its plucked strings for melody, bass patterns and harmonic accompaniment in concerts, celebrations and teaching."
    ],
    "standards_and_regulation": [
      "The World Customs Organization's Harmonized System classifies harps under heading 9202 for other string musical instruments."
    ]
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q3623688: Paraguayan harp",
      "url": "https://www.wikidata.org/wiki/Q3623688",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Paraguayan harp",
      "url": "https://en.wikipedia.org/wiki/Paraguayan_harp",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "paraguayan-harp-identity",
        "name": "Paraguayan harp identity",
        "description": "Establishes the instrument's relationship to the Paraguayan harp tradition and the limits of that identification.",
        "rationale": "Regional harps can share visible and musical features, so identity needs evidence beyond a silhouette or string count.",
        "layers": [
          {
            "id": "tradition-attribution",
            "name": "Tradition attribution",
            "description": "Records who identifies the instrument as Paraguayan and on what grounds.",
            "findings": [
              {
                "id": "supported-attribution",
                "name": "Supported attribution",
                "description": "An attribution should distinguish maker documentation, ownership history and expert interpretation from a seller's unsupported label.",
                "questions": [
                  {
                    "text": "Which maker record, provenance document or identified specialist supports classification as a Paraguayan harp?",
                    "kind": "provenance",
                    "id": "supported-attribution-q01"
                  },
                  {
                    "text": "Which observed features support or complicate that attribution relative to neighbouring regional harp traditions?",
                    "kind": "boundary",
                    "id": "supported-attribution-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "variant-boundaries",
            "name": "Variant boundaries",
            "description": "Separates shared identity from workshop variation and later adaptation.",
            "findings": [
              {
                "id": "variant-and-modification",
                "name": "Variant and modification",
                "description": "The model must accommodate documented variation without treating every added fitting or changed dimension as a separate instrument kind.",
                "questions": [
                  {
                    "text": "Which construction features belong to the maker's original design, and which were changed later?",
                    "kind": "provenance",
                    "id": "variant-and-modification-q01"
                  },
                  {
                    "text": "Does the instrument's documented identity remain Paraguayan harp after its modifications, or is its classification disputed?",
                    "kind": "boundary",
                    "id": "variant-and-modification-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "frame-soundbox-and-string-path",
        "name": "Frame, soundbox and string path",
        "description": "Describes how this harp carries string load and couples vibration into its resonating body.",
        "rationale": "Construction geometry affects identification, hand access, sound production and the consequences of stringing changes.",
        "layers": [
          {
            "id": "load-bearing-construction",
            "name": "Load-bearing construction",
            "description": "Examines the neck, pillar, soundbox and their joints as a connected structure.",
            "findings": [
              {
                "id": "frame-and-joint-integrity",
                "name": "Frame and joint integrity",
                "description": "Assessment should locate load-bearing joints and distinguish documented construction geometry from possible movement under string tension.",
                "questions": [
                  {
                    "text": "How are the neck, pillar and soundbox joined, and what maker information describes their intended alignment?",
                    "kind": "definition",
                    "id": "frame-and-joint-integrity-q01"
                  },
                  {
                    "text": "Where are cracks, joint gaps or deformation visible, and is there evidence that they are progressing?",
                    "kind": "measurement",
                    "id": "frame-and-joint-integrity-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "resonator-and-string-alignment",
            "name": "Resonator and string alignment",
            "description": "Records soundboard construction, string anchoring and the string plane relative to the instrument body.",
            "findings": [
              {
                "id": "string-to-body-coupling",
                "name": "String-to-body coupling",
                "description": "String endpoints, soundboard attachments and neck alignment must be observed on the example rather than inferred from another harp design.",
                "questions": [
                  {
                    "text": "Where does each string bear and attach, and how is its vibrating length established?",
                    "kind": "definition",
                    "id": "string-to-body-coupling-q01"
                  },
                  {
                    "text": "What are the string-plane offsets and spacing through the bass and treble, and how do they affect access from each side?",
                    "kind": "measurement",
                    "id": "string-to-body-coupling-q02"
                  },
                  {
                    "text": "Which attachment points or resonator components move or buzz when particular strings are played?",
                    "kind": "measurement",
                    "id": "string-to-body-coupling-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "stringing-tuning-and-musical-access",
        "name": "Stringing, tuning and musical access",
        "description": "Connects the installed strings and pitch layout to the music and techniques the instrument can support.",
        "rationale": "The label Paraguayan harp does not by itself specify an example's range, key, string materials or chromatic possibilities.",
        "layers": [
          {
            "id": "string-and-pitch-map",
            "name": "String and pitch map",
            "description": "Builds a position-level account of string specifications and intended tuning.",
            "findings": [
              {
                "id": "verified-string-schedule",
                "name": "Verified string schedule",
                "description": "A usable string schedule links positions, speaking lengths, materials and pitches while marking specifications that remain unknown.",
                "questions": [
                  {
                    "text": "What string material, diameter, speaking length and intended pitch are documented for each position?",
                    "kind": "measurement",
                    "id": "verified-string-schedule-q01"
                  },
                  {
                    "text": "Which tuning reference and pitch layout does the maker or player specify for this example?",
                    "kind": "provenance",
                    "id": "verified-string-schedule-q02"
                  },
                  {
                    "text": "Which missing or substituted strings require verification before tuning or replacement?",
                    "kind": "action",
                    "id": "verified-string-schedule-q03"
                  }
                ]
              }
            ]
          },
          {
            "id": "performance-capabilities",
            "name": "Performance capabilities",
            "description": "Relates tuning, geometry and any pitch-altering provision to actual playing requirements.",
            "findings": [
              {
                "id": "technique-and-repertoire-fit",
                "name": "Technique and repertoire fit",
                "description": "Musical suitability depends on the required notes and techniques as well as the player's access to the particular instrument.",
                "questions": [
                  {
                    "text": "Which notes in the intended arrangement are directly available, and which require retuning or a documented pitch-altering method?",
                    "kind": "action",
                    "id": "technique-and-repertoire-fit-q01"
                  },
                  {
                    "text": "Does the string spacing and playing orientation support the intended bass patterns, melody work and ornamentation for this player?",
                    "kind": "action",
                    "id": "technique-and-repertoire-fit-q02"
                  },
                  {
                    "text": "Are any pitch-altering fittings original, later additions or of uncertain origin?",
                    "kind": "provenance",
                    "id": "technique-and-repertoire-fit-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "playability-care-and-intervention",
        "name": "Playability, care and intervention",
        "description": "Determines whether the harp is ready to play and which maintenance or handling actions its condition supports.",
        "rationale": "A playable-looking harp can have unstable tuning, damaged string attachments or structural movement that changes the appropriate next action.",
        "layers": [
          {
            "id": "playing-readiness",
            "name": "Playing readiness",
            "description": "Assesses tuning retention, unwanted sound and stability in the intended playing position.",
            "findings": [
              {
                "id": "tuning-and-response-check",
                "name": "Tuning and response check",
                "description": "Readiness should be based on observed response across the string range, with symptoms located before assigning a cause.",
                "questions": [
                  {
                    "text": "Which strings drift after tuning, by how many cents and over what interval under recorded conditions?",
                    "kind": "measurement",
                    "id": "tuning-and-response-check-q01"
                  },
                  {
                    "text": "Which pitches produce buzzing, weak response or rattling, and where does the symptom appear to originate?",
                    "kind": "measurement",
                    "id": "tuning-and-response-check-q02"
                  },
                  {
                    "text": "Is the harp stable at its intended support points while both hands reach the required registers?",
                    "kind": "action",
                    "id": "tuning-and-response-check-q03"
                  }
                ]
              }
            ]
          },
          {
            "id": "care-and-repair-limits",
            "name": "Care and repair limits",
            "description": "Connects verified construction and condition to string changes, environmental care, packing and repair.",
            "findings": [
              {
                "id": "supported-intervention",
                "name": "Supported intervention",
                "description": "Care decisions need instrument-specific guidance where string load, wooden joints, finish or transport support could be affected.",
                "questions": [
                  {
                    "text": "What maker or repairer guidance governs replacement strings, tuning changes and tension adjustment for this harp?",
                    "kind": "provenance",
                    "id": "supported-intervention-q01"
                  },
                  {
                    "text": "Which observed faults require a harp repair specialist before further tuning or playing?",
                    "kind": "action",
                    "id": "supported-intervention-q02"
                  },
                  {
                    "text": "How should the frame and soundbox be supported during storage and transport, and what environmental limits are documented?",
                    "kind": "action",
                    "id": "supported-intervention-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": [
                  "String counts are approximate customary values, not a standardized specification.",
                  "Modern instruments may incorporate amplification or pitch-changing devices; these features should be checked for the particular design.",
                  "Precise historical origins and relationships to other Latin American harp traditions require source verification."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of Paraguayan harp 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": [
                  "Solo performance of Paraguayan traditional and popular music",
                  "Accompaniment of songs and instrumental ensembles",
                  "Performance of Paraguayan polkas and guaranias",
                  "Concert performance and music teaching"
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of Paraguayan harp 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": "Number of strings",
                    "typical_range": "Approximately 32-40, commonly 36",
                    "unit": "strings"
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-measurements-q01",
                    "text": "Which of these typical measurements hold for the sense of Paraguayan harp 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": [
                  "Strings can break or lose tuning through wear and changes in temperature or humidity.",
                  "Wooden soundboards and joints can crack, warp or separate under string tension or unsuitable storage conditions.",
                  "Tuning pins can loosen, making stable tuning difficult.",
                  "Repetitive playing and unsuitable posture can contribute to hand, arm or back strain."
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of Paraguayan harp this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-regional-variation",
                "name": "Regional variation",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "The instrument is strongly associated with Paraguayan musical identity but is also built and played internationally.",
                  "Construction, string count, tuning and decorative treatment vary between makers and performers."
                ],
                "questions": [
                  {
                    "id": "evidence-regional-variation-q01",
                    "text": "Which of these regional variation hold for the sense of Paraguayan harp 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": "Harp",
                    "difference": "Harp is the broader instrument family; the Paraguayan harp is a particular regional construction and performance tradition within it."
                  },
                  {
                    "name": "Pedal harp",
                    "difference": "A pedal harp uses foot-operated mechanisms to change string pitches; a traditional Paraguayan harp has no pedal mechanism and is primarily diatonic."
                  },
                  {
                    "name": "Lever harp",
                    "difference": "A lever harp has individual pitch-changing levers on strings; these are not a defining feature of the traditional Paraguayan harp."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of Paraguayan harp this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Which documented construction features most reliably distinguish Paraguayan harps from closely related regional harps, and which are merely common workshop choices?",
    "What string counts, pitch ranges, materials and tuning layouts are supported by representative maker records rather than repeated as universal specifications?",
    "How do practitioners classify instruments with added pitch-changing mechanisms, amplification or substantial structural modifications?",
    "Which Paraguayan harp techniques impose distinctive requirements on string spacing, string-plane placement, tension and player orientation?",
    "What maker-supported limits and specialist practices govern string substitution, environmental exposure, tension adjustment and structural repair?"
  ],
  "statistics": {
    "bundles": 5,
    "layers": 9,
    "findings": 14,
    "questions": 27
  }
}
