public function generate($node = null, $clockSeq = null)
    {
        $node = $this->getValidNode($node);

        if ($clockSeq === null) {
            // Not using "stable storage"; see RFC 4122, Section 4.2.1.1
            $clockSeq = random_int(0, 0x3fff);
        }

        // Create a 60-bit time value as a count of 100-nanosecond intervals
        // since 00:00:00.00, 15 October 1582
        $timeOfDay = $this->timeProvider->currentTime();
        $uuidTime = $this->timeConverter->calculateTime((string) $timeOfDay['sec'], (string) $timeOfDay['usec']);

        $timeHi = BinaryUtils::applyVersion($uuidTime['hi'], 1);
        $clockSeqHi = BinaryUtils::applyVariant($clockSeq >> 8);

        $hex = vsprintf(
            '%08s%04s%04s%02s%02s%012s',
            [
                $uuidTime['low'],
                $uuidTime['mid'],
                sprintf('%04x', $timeHi),
                sprintf('%02x', $clockSeqHi),
                sprintf('%02x', $clockSeq & 0xff),
                $node,
            ]
        );

        return hex2bin($hex);
    }