{
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        "filename": "sarscov2_protein_xref_pdb.csv", 
        "recordcount": 5
    }, 
    "1.8.21": {
        "additioncount": 4, 
        "additions": [
            "P0DTC3-1", 
            "P0DTC8-1", 
            "P0DTD2-1", 
            "P0DTC4-1"
        ], 
        "deletioncount": 0, 
        "deletions": [], 
        "delta": 4, 
        "filename": "sarscov2_protein_xref_pdb.csv", 
        "recordcount": 9
    }
}