{
  "apiVersion": "v1",
  "kind": "Source",
  "metadata": {
    "generated": "2026-09-12T06:52:38Z",
    "language": "en",
    "schemaUrl": "/v1/schema/source/"
  },
  "data": {
  "id": "circular-evidence",
  "title": "Circular Evidence: A Detailed Investigation of the Flattened Swirled Crops Phenomenon",
  "description": {
    "en": "Pat Delgado and Colin Andrews's 1989 Bloomsbury work — the principal early book-length engagement with the British crop circle phenomenon and the foundational text of pre-confession crop circle research. Delgado, an electromechanical engineer, and Andrews, an electrical engineer, were the principal English-language documentarians of the substantial 1980s-phase formations. Their substantial photographic catalogue and substantial systematic case documentation shaped the discipline's early methodological framework. The work substantially predates the 1991 Bower-Chorley confession and operates substantively within the residual-anomaly research framework."
  },
  "authored_by": [
    "Pat Delgado",
    "Colin Andrews"
  ],
  "topics": [
    "Crop Circles",
    "British Crop Circles",
    "1980s Documentation"
  ],
  "stance": "neutral",
  "source_type": "academic_monograph",
  "publish_date": "1989",
  "source_family": "archaeoastronomy",
  "relation_to_wheel": "scholarly_context",
  "licensing_status": "licensed",
  "follow_url": "https://www.amazon.com/Circular-Evidence-Pat-Delgado/dp/0747506299"
},
  "links": {
    "self": "/v1/sources/circular-evidence/",
    "canonical_html": "https://www.wheelofheaven.world/sources/circular-evidence/",
    "index": "/v1/sources/",
    "schema": "/v1/schema/source/",
    "traditions": "/v1/sources/traditions/"
  }
}