Masternodes: 4734
 Deterministic: 3701 (78.18%)
 80% (estimated): in 1 days 
 24h progress: +67 (1.42%)
 S15 activation: April 2, 2019
 Last registration: 30 min ago
 Updated: 12:26:03 UTC

<?php

$url = "https://www.dashninja.pl/data/masternodeslistfull-0.json";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$a = json_decode(curl_exec($ch), true);
$list = [];

foreach ($a['data']['masternodes'] as $row) {
  if ($row['ActiveCount'] == 0) {
    continue;
  }

  $lastPaid = $row['MasternodeLastPaid'] ? time() - $row['MasternodeLastPaid'] : 0;
  $active = $row['MasternodeActiveSeconds'];

  if ($lastPaid > $active || $lastPaid === 0) {
    $duration = $active;
  } else {
    $duration = $lastPaid;
  }

  $dtF = new \DateTime('@0');
  $dtT = new \DateTime("@{$duration}");

  $list[$duration] = [
    'duration' => $dtF->diff($dtT)->format('%a:%H:%I:%S'),
    'key' => $row['MasternodePubkey'],
  ];
}

krsort($list);
$list = array_values($list);
$list = array_slice($list, 0, count($list) * 0.1);

echo json_encode($list, JSON_PRETTY_PRINT|JSON_FORCE_OBJECT);