[
    {
        "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" [
                "Si" 
                "Si"
            ]
        } 
        "a" {
            "source-value" 3.138121291995049 
            "source-unit" "angstrom" 
            "si-unit" "m" 
            "si-value" 3.138121291995049e-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" 3555.171372058487 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.007335930730599184 
            "si-unit" "kg / m s^2" 
            "si-value" 3555171372058.487
        } 
        "c12" {
            "source-value" -1462.396353439947 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.00518728636351099 
            "si-unit" "kg / m s^2" 
            "si-value" -1462396353439.947
        } 
        "c44" {
            "source-value" 142.3078729067679 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.0018339826814338439 
            "si-unit" "kg / m s^2" 
            "si-value" 142307872906.7679
        } 
        "excess" {
            "source-value" 0.07889098322760744 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.00259364318091334 
            "si-unit" "kg / m s^2" 
            "si-value" 78890983.22760744
        }
    } 
    {
        "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" [
                "Si" 
                "Si"
            ]
        } 
        "a" {
            "source-value" 3.138121291995049 
            "source-unit" "angstrom" 
            "si-unit" "m" 
            "si-value" 3.138121291995049e-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" 210.12622172619768 
            "source-unit" "GPa" 
            "source-std-uncert-value" 0.004235401580755789 
            "si-unit" "kg / m s^2" 
            "si-value" 210126221726.1977
        }
    }
]