[
    {
        "property-id" "tag:staff@noreply.openkim.org,2014-05-21:property/elastic-constants-isothermal-cubic-crystal-npt" 
        "instance-id" 1 
        "short-name" {
            "source-value" [
                "fcc"
            ]
        } 
        "species" {
            "source-value" [
                "Na" 
                "Na" 
                "Na" 
                "Na"
            ]
        } 
        "a" {
            "source-value" 5.499005943536759 
            "source-unit" "angstrom" 
            "si-unit" "m" 
            "si-value" 5.499005943536759e-10
        } 
        "basis-atom-coordinates" {
            "source-value" [
                [
                    0.0 
                    0.0 
                    0.0
                ] 
                [
                    0.0 
                    0.5 
                    0.5
                ] 
                [
                    0.5 
                    0.0 
                    0.5
                ] 
                [
                    0.5 
                    0.5 
                    0.0
                ]
            ]
        } 
        "space-group" {
            "source-value" "Fm-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" 14.601425053350562 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.007335930724831936 
            "si-unit" "kg / m s^2" 
            "si-value" 14601425053.35056
        } 
        "c12" {
            "source-value" 16.265128650090954 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.005187286361845324 
            "si-unit" "kg / m s^2" 
            "si-value" 16265128650.09095
        } 
        "c44" {
            "source-value" 16.265513002659244 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.001833982681228533 
            "si-unit" "kg / m s^2" 
            "si-value" 16265513002.65924
        } 
        "excess" {
            "source-value" 1.6653345369381016e-10 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.0025936431809132944 
            "si-unit" "kg / m s^2" 
            "si-value" 0.1665334536938102
        }
    } 
    {
        "property-id" "tag:staff@noreply.openkim.org,2014-04-15:property/bulk-modulus-isothermal-cubic-crystal-npt" 
        "instance-id" 2 
        "short-name" {
            "source-value" [
                "fcc"
            ]
        } 
        "species" {
            "source-value" [
                "Na" 
                "Na" 
                "Na" 
                "Na"
            ]
        } 
        "a" {
            "source-value" 5.499005943536759 
            "source-unit" "angstrom" 
            "si-unit" "m" 
            "si-value" 5.499005943536759e-10
        } 
        "basis-atom-coordinates" {
            "source-value" [
                [
                    0.0 
                    0.0 
                    0.0
                ] 
                [
                    0.0 
                    0.5 
                    0.5
                ] 
                [
                    0.5 
                    0.0 
                    0.5
                ] 
                [
                    0.5 
                    0.5 
                    0.0
                ]
            ]
        } 
        "space-group" {
            "source-value" "Fm-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" 15.710560784510822 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.004235401578739208 
            "si-unit" "kg / m s^2" 
            "si-value" 15710560784.51082
        }
    }
]