[
    {
        "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" [
                "Hf" 
                "Hf" 
                "Hf" 
                "Hf"
            ]
        } 
        "a" {
            "source-value" 4.813423126935959 
            "source-unit" "angstrom" 
            "si-unit" "m" 
            "si-value" 4.813423126935959e-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" 1836.1122537393983 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.0073359307277990025 
            "si-unit" "kg / m s^2" 
            "si-value" 1836112253739.398
        } 
        "c12" {
            "source-value" 1047.5828580451164 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.005187286363033205 
            "si-unit" "kg / m s^2" 
            "si-value" 1047582858045.116
        } 
        "c44" {
            "source-value" 1049.760201392515 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.0018339826829119963 
            "si-unit" "kg / m s^2" 
            "si-value" 1049760201392.515
        } 
        "excess" {
            "source-value" 1.0417991163083136 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.0025936431809138946 
            "si-unit" "kg / m s^2" 
            "si-value" 1041799116.308314
        }
    } 
    {
        "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" [
                "Hf" 
                "Hf" 
                "Hf" 
                "Hf"
            ]
        } 
        "a" {
            "source-value" 4.813423126935959 
            "source-unit" "angstrom" 
            "si-unit" "m" 
            "si-value" 4.813423126935959e-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" 1310.4259899432102 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.004235401579956821 
            "si-unit" "kg / m s^2" 
            "si-value" 1310425989943.21
        }
    }
]