{
  "record_id": "AZDOC-59021DDB6030",
  "title": "A Simple Screening Formula for Estimating the Energy-Cost Effect of an Undersized Residential HVAC System",
  "library": "aziel",
  "filename": "HVAC_Undersizing_Energy-Cost_Screening_Model.pdf",
  "byte_size": 29199,
  "content_sha256": "c85bf433933c61d99cd8c1adb472e148214a08e2e9324679a45b854a285d19c1",
  "created_by": "operator",
  "created_utc": "2026-09-03T00:23:36.486Z",
  "immutable": true,
  "ledger": [
    {
      "sequence": 10,
      "timestamp_utc": "2026-09-03T00:23:36.591Z",
      "action": "INGEST",
      "payload": {
        "byte_size": 29199,
        "created_by": "operator",
        "filename": "HVAC_Undersizing_Energy-Cost_Screening_Model.pdf",
        "library": "aziel",
        "record_id": "AZDOC-59021DDB6030",
        "sha256": "c85bf433933c61d99cd8c1adb472e148214a08e2e9324679a45b854a285d19c1",
        "title": "A Simple Screening Formula for Estimating the Energy-Cost Effect of an Undersized Residential HVAC System"
      },
      "previous_hash": "17dd4f0966b12a8d4df1416f6bf5bb968824636aa11aacf5fe1121573bc9d450",
      "entry_hash": "8739d98aa2bdf63633b15f000eb2917bed2d75bcaad4a194e4cce643df55b2f4"
    }
  ]
}