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

1 Answer 1


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).

  • 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
    Commented Nov 6, 2017 at 19:11
  • Why making it harder? Why it should be difficult to sign a block?
    – Mariusz
    Commented Apr 11, 2021 at 19:56

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