{
  "schemaVersion": 1,
  "updated": "2026-10-19",
  "project": "Good Neighbors at Spark House",
  "publicationState": "design-proposal",
  "orientation": {
    "property": "Spark House",
    "sideOfSurveyMarkers": "west",
    "source": "Property owner's instruction, 19 October 2026",
    "scope": "These boundary markers only; not a claim about every property boundary."
  },
  "agreement": {
    "status": "Original and public summary awaiting review",
    "date": null,
    "publicSummary": null,
    "recordingReference": null,
    "publicDocumentUrl": null
  },
  "design": {
    "post": "4-inch-square capped aluminum witness post",
    "finish": "Purple exterior finish; original full-color Spark logo",
    "targetExposedHeightInches": 42,
    "minimumExposedHeightInches": 36,
    "frontPlaqueInches": [3, 8],
    "connectionPlaqueInches": [3, 4],
    "qrSizeInches": 1.6,
    "nfc": "Optional on-metal tag, subject to installed field testing"
  },
  "markers": [
    {
      "id": "SH-C01",
      "role": "Corner witness",
      "title": "First corner witness",
      "status": "Proposed • not field verified",
      "description": "A proposed witness post near one endpoint of the agreed boundary segment. Exact endpoint and offset remain to be confirmed.",
      "survey": {"document": null, "date": null, "job": null, "point": null, "verifiedBy": null, "verifiedAt": null},
      "monument": {"type": null, "capText": null, "condition": null},
      "offset": {"from": "Witness-post center", "to": "Survey-monument center", "distance": null, "unit": null, "direction": null},
      "position": {"latitude": null, "longitude": null, "crs": null, "method": null, "accuracy": null},
      "installation": {"date": null, "exposedHeightInches": null, "installer": null},
      "inspections": [],
      "publicCredit": [],
      "canonicalUrl": "https://sparkworks.org/m/SH-C01"
    },
    {
      "id": "SH-C02",
      "role": "Corner witness",
      "title": "Second corner witness",
      "status": "Proposed • not field verified",
      "description": "A proposed witness post near the other endpoint. Its relationship to the signed agreement and the survey remains to be confirmed.",
      "survey": {"document": null, "date": null, "job": null, "point": null, "verifiedBy": null, "verifiedAt": null},
      "monument": {"type": null, "capText": null, "condition": null},
      "offset": {"from": "Witness-post center", "to": "Survey-monument center", "distance": null, "unit": null, "direction": null},
      "position": {"latitude": null, "longitude": null, "crs": null, "method": null, "accuracy": null},
      "installation": {"date": null, "exposedHeightInches": null, "installer": null},
      "inspections": [],
      "publicCredit": [],
      "canonicalUrl": "https://sparkworks.org/m/SH-C02"
    },
    {
      "id": "SH-L01",
      "role": "Line guide",
      "title": "Optional intermediate guide",
      "status": "Optional • not field verified",
      "description": "An optional intermediate witness post for visibility, only if the verified layout calls for one. It does not establish a corner.",
      "survey": {"document": null, "date": null, "job": null, "point": null, "verifiedBy": null, "verifiedAt": null},
      "monument": {"type": null, "capText": null, "condition": null},
      "offset": {"from": "Witness-post center", "to": "Verified survey segment", "distance": null, "unit": null, "direction": null},
      "position": {"latitude": null, "longitude": null, "crs": null, "method": null, "accuracy": null},
      "installation": {"date": null, "exposedHeightInches": null, "installer": null},
      "inspections": [],
      "publicCredit": [],
      "canonicalUrl": "https://sparkworks.org/m/SH-L01"
    }
  ]
}