<p>The leading zeros are there to control the difficulty of the problem. More zeros mean a lower space of possible solutions and hence harder problems (more hashes to try before you find one that wins). </p>

CC BY-SA 3.0
2017-11-06T19:11:30.257Z
Thank you.  I wasn't sure if it had something to do with sequencing.  It makes sense that it's just to control the difficulty.  It's fascinating.
Bill Greer
CC BY-SA 4.0
2021-04-11T19:56:44.560Z
Why making it harder? Why it should be difficult to sign a block?
Mariusz
CC BY-SA 3.0
2017-11-06T18:00:25.843Z
2017-11-06T18:00:25.843Z
James Chapman
<p>Why are leading zeros desired in the block chain hash?  I have searched the internet but cannot find why.</p>

<mining-theory><hash>
Why the leading zeros in the desired hash pattern?
Bill Greer
# Why the leading zeros in the desired hash pattern?

(Asked by: username_0 on 2017-11-06)

Why are leading zeros desired in the block chain hash? I have searched the internet but cannot find why.

**Tags:** mining-theory, hash


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## 1 answers

### Answer by username_1 on 2017-11-06. Score: 6

The leading zeros are there to control the difficulty of the problem. More zeros mean a lower space of possible solutions and hence harder problems (more hashes to try before you find one that wins).

> **Comments:**
> **username_0**: Thank you.  I wasn't sure if it had something to do with sequencing.  It makes sense that it's just to control the difficulty.  It's fascinating.  
> **username_2**: Why making it harder? Why it should be difficult to sign a block?  

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