public static function nrb($value)
    {
        $iNRB = preg_replace('#[\\s- ]#', '', $value);

        if (strlen($iNRB) !== 26) {
            return false;
        }

        $iNRB .= '2521';
        $iNRB = substr($iNRB, 2) . substr($iNRB, 0, 2);
        $iNumSum = 0;
        $aNumWeight = [
            1, 10, 3, 30, 9, 90, 27, 76, 81, 34, 49, 5, 50, 15, 53,
            45, 62, 38, 89, 17, 73, 51, 25, 56, 75, 71, 31, 19, 93, 57
        ];

        foreach ($aNumWeight as $key => $num) {
            $iNumSum += $num * $iNRB[29 -$key];
        }

        return $iNumSum % 97 === 1;
    }