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    <title>DEV Community: Sharan Karchella</title>
    <description>The latest articles on DEV Community by Sharan Karchella (@sharan_karchella_9a82f014).</description>
    <link>https://dev.to/sharan_karchella_9a82f014</link>
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      <title>DEV Community: Sharan Karchella</title>
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      <title>What is a block chain?</title>
      <dc:creator>Sharan Karchella</dc:creator>
      <pubDate>Thu, 08 May 2025 05:33:45 +0000</pubDate>
      <link>https://dev.to/sharan_karchella_9a82f014/what-is-a-block-chai--4ml4</link>
      <guid>https://dev.to/sharan_karchella_9a82f014/what-is-a-block-chai--4ml4</guid>
      <description>&lt;p&gt;This is my understanding&lt;br&gt;
---------+---------+-----&lt;br&gt;
"Think of the hash that starts with 0000 as a winning lottery ticket.&lt;/p&gt;

&lt;p&gt;I have a base ticket (the block data), but that alone won’t win. So, I keep adding different numbers (nonces) to it — like writing random guesses on my ticket — and checking if it turns into a winning one (i.e., gives a hash that starts with 0000).&lt;/p&gt;

&lt;h2&gt;
  
  
  I keep trying again and again until finally... boom! I get a winning ticket. That’s my valid block."
&lt;/h2&gt;

&lt;p&gt;So yes:&lt;/p&gt;

&lt;p&gt;Your base data (block info) = ticket&lt;/p&gt;

&lt;p&gt;Nonce = extra number you add to try and win&lt;/p&gt;

&lt;p&gt;Hash with 0000 = winning ticket&lt;/p&gt;

&lt;p&gt;Trying again and again = mining / Proof of Work&lt;/p&gt;

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      <category>blockchain</category>
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