<p>All block hashes start with a certain number of zeroes by design. The nature of a hash is that knowing something about the output does not help you figure out what the input is supposed to be (at least in theory). So in short, no.</p>

CC BY-SA 3.0
2013-11-29T06:58:07.417Z
2013-11-29T06:58:07.417Z
NReilingh
<p>I've noticed the recently solved block hashes have started with a number of zeros (8 last time I checked). Couldn't we just tell our mining hardware/software to assume the first few digits are in fact zeros and give us a head start?</p>

<hash><difficulty><mining-technical-details><sha256>
Cheating ASICs and Mining Software
Rex
# Cheating ASICs and Mining Software

(Asked by: username_0 on 2013-11-29)

I've noticed the recently solved block hashes have started with a number of zeros (8 last time I checked). Couldn't we just tell our mining hardware/software to assume the first few digits are in fact zeros and give us a head start?

**Tags:** hash, difficulty, mining-technical-details, sha256


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## 1 answers

### Answer by username_1 on 2013-11-29. Score: 5

All block hashes start with a certain number of zeroes by design. The nature of a hash is that knowing something about the output does not help you figure out what the input is supposed to be (at least in theory). So in short, no.


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