[
    {
        "property-id" "tag:staff@noreply.openkim.org,2014-05-21:property/elastic-constants-isothermal-cubic-crystal-npt" 
        "instance-id" 1 
        "short-name" {
            "source-value" [
                "bcc"
            ]
        } 
        "species" {
            "source-value" [
                "Fe" 
                "Fe"
            ]
        } 
        "a" {
            "source-value" 2.855324625968933 
            "source-unit" "angstrom" 
            "si-unit" "m" 
            "si-value" 2.855324625968933e-10
        } 
        "basis-atom-coordinates" {
            "source-value" [
                [
                    0.0 
                    0.0 
                    0.0
                ] 
                [
                    0.5 
                    0.5 
                    0.5
                ]
            ]
        } 
        "space-group" {
            "source-value" "Im-3m"
        } 
        "temperature" {
            "source-value" 0 
            "source-unit" "K" 
            "si-unit" "K" 
            "si-value" 0.0
        } 
        "cauchy-stress" {
            "source-value" [
                0 
                0 
                0 
                0 
                0 
                0
            ] 
            "source-unit" "GPa" 
            "si-unit" "kg / m s^2" 
            "si-value" [
                0.0 
                0.0 
                0.0 
                0.0 
                0.0 
                0.0
            ]
        } 
        "c11" {
            "source-value" 243.35871189808395 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.00733593072520456 
            "si-unit" "kg / m s^2" 
            "si-value" 243358711898.084
        } 
        "c12" {
            "source-value" 145.00859602095179 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.0051872863619936115 
            "si-unit" "kg / m s^2" 
            "si-value" 145008596020.9518
        } 
        "c44" {
            "source-value" 116.21234486801605 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.0018339826813913366 
            "si-unit" "kg / m s^2" 
            "si-value" 116212344868.0161
        } 
        "excess" {
            "source-value" 0.08773886713462804 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.0025936431809133447 
            "si-unit" "kg / m s^2" 
            "si-value" 87738867.13462804
        }
    } 
    {
        "property-id" "tag:staff@noreply.openkim.org,2014-04-15:property/bulk-modulus-isothermal-cubic-crystal-npt" 
        "instance-id" 2 
        "short-name" {
            "source-value" [
                "bcc"
            ]
        } 
        "species" {
            "source-value" [
                "Fe" 
                "Fe"
            ]
        } 
        "a" {
            "source-value" 2.855324625968933 
            "source-unit" "angstrom" 
            "si-unit" "m" 
            "si-value" 2.855324625968933e-10
        } 
        "basis-atom-coordinates" {
            "source-value" [
                [
                    0.0 
                    0.0 
                    0.0
                ] 
                [
                    0.5 
                    0.5 
                    0.5
                ]
            ]
        } 
        "space-group" {
            "source-value" "Im-3m"
        } 
        "temperature" {
            "source-value" 0 
            "source-unit" "K" 
            "si-unit" "K" 
            "si-value" 0.0
        } 
        "cauchy-stress" {
            "source-value" [
                0 
                0 
                0 
                0 
                0 
                0
            ] 
            "source-unit" "GPa" 
            "si-unit" "kg / m s^2" 
            "si-value" [
                0.0 
                0.0 
                0.0 
                0.0 
                0.0 
                0.0
            ]
        } 
        "isothermal-bulk-modulus" {
            "source-value" 177.79196797999583 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.004235401578891637 
            "si-unit" "kg / m s^2" 
            "si-value" 177791967979.9958
        }
    }
]