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  <title>bc.game Crash - Game Verification Script by bcgame</title>
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    .is-first {
        background-color: rgba(195, 111, 24, 0.2);
    }

    .is-over-median {
        color: #44B39D;
    }

    .is-at-median {
        color: #3B3C3D;
    }

    .is-under-median {
        color: #BF4A67;
    }
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<body>
  <section class="section">
    <div class="container">
      <h1 class="title">bc.game Crash - Game Verification Script</h1>
      <h2 class="subtitle">Third party script used to verify games on crash game.</h2>
    </div>
    <hr>
    <div class="container">
      <div class="field">
        <p class="control has-icons-left">
          <input class="input" type="text" id="game_hash_input" placeholder="Game's hash (SHA256)">
          <span class="icon is-small is-left"><i class="fa fa-key"></i></span>
        </p>
      </div>
      <div class="field">
        <p class="control has-icons-left">
          <input class="input" type="number" id="game_amount_input" min="1" max="100000" step="1" placeholder="Amount of games" value="10">
          <span class="icon is-small is-left"><i class="fa fa-hashtag"></i></span>
        </p>
      </div>
      <div class="field is-grouped">
        <p class="control">
          <a class="button is-primary" id="game_verify_submit">Verify</a>
        </p>
      </div>
    </div>
    <hr>
    <div class="container">
      <table class="table is-striped is-fullwidth is-hoverable is-narrow" style="display:table">
        <thead>
          <tr>
            <th><b>Game's hash</b></th>
            <th><b>Bust</b></th>
          </tr>
        </thead>
        <tbody id="game_verify_table"></tbody>
      </table>
    </div>
  </section>
    <script type="text/javascript">
      var isVerifying = false;
      $('#game_verify_submit').on('click', () => {
        if (isVerifying) return;
        isVerifying = true;
        $('#game_hash_input').parent().addClass('is-loading');
        $('#game_verify_submit').addClass('is-loading');
        $('#game_hash_input, #game_amount_input, #game_verify_submit').attr('disabled', 'disabled');
        $('#game_verify_table').html('');

        let prevHash = null;
        for (let i = 0; i < $('#game_amount_input').val(); i++) {
          let hash = String(prevHash ? CryptoJS.SHA256(String(prevHash)) : $('#game_hash_input').val());
          let bust = gameResult(hash);

          setTimeout(function() {
            addTableRow(hash, bust, i)
          }, i * 1);

          prevHash = hash;
        }
      });

      $('#game_amount_input').on('keyup', () => {
        if ($('#game_amount_input').val() >= 10000) {
          if ($('#game_verify_warning').length) return;
          $('#game_verify_submit').parent().append(
            $('<span/>').attr({
              'id': 'game_verify_warning',
              'class': 'tag is-warning'
            }).text("Verifying a huge amount of games may consume more ressources from your CPU")
          );
        } else {
          if ($('#game_verify_warning').length) {
            $('#game_verify_warning').remove();
          }
        }
      });

      const addTableRow = (hash, bust, index) => {
        $('<tr/>').attr({
          'class': index === 0 ? 'is-first' : null
        }).append(
          $('<td/>').text(hash)
        ).append(
          $('<td/>').text(bust).attr({
            'class': bust === 1.98 ? 'is-at-median' : bust > 1.98 ? 'is-over-median' : 'is-under-median'
          })
        ).appendToWithIndex($('#game_verify_table'), index);

        if (index >= $('#game_amount_input').val() - 1) {
          $('#game_hash_input').parent().removeClass('is-loading');
          $('#game_verify_submit').removeClass('is-loading');
          $('#game_hash_input, #game_amount_input, #game_verify_submit').removeAttr("disabled");
          isVerifying = false;
        }
      };

      const gameResult = (seed) => {
        const nBits = 52; // number of most significant bits to use

        // 1. r = 52 most significant bits
        seed = seed.slice(0, nBits / 4);
        const r = parseInt(seed, 16);

        // 2. X = r / 2^52
        let X = r / Math.pow(2, nBits); // uniformly distributed in [0; 1)

        // 3. X = 99 / (1-X)
        X = 99 / (1 - X);

        // 4. return max(trunc(X), 100)
        const result = Math.floor(X);
        return Math.max(1, result / 100);
      };

      $.fn.appendToWithIndex = function(to, index) {
        if (!to instanceof jQuery) {
          to = $(to);
        };
        if (index === 0) {
          $(this).prependTo(to)
        } else {
          $(this).insertAfter(to.children().eq(index - 1));
        }
      };

      var hash_url = window.location.search
      if ((/\?hash=/).test(hash_url)) {
        var hash = hash_url.replace(/\?hash=/, '')
        $('#game_hash_input').val(hash)
        $('#game_verify_submit').click()
      }
    </script>
    <script>
      // tell the embed parent frame the height of the content
      if (window.parent && window.parent.parent) {
        window.parent.parent.postMessage(["resultsFrame", {
          height: document.body.getBoundingClientRect().height,
          slug: "nwu2ffkv"
        }], "*")
      }
    </script>
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