<p>pdiff, the pool difficulty, is <em>not</em> just a different encoding of the same difficulty. Pools set a different (lower) difficulty so that miners can send them more blocks as shares, and calculate how much work they're doing. Valid blocks are still checked against the normal bdiff before submission to the network</p>

CC BY-SA 3.0
2018-01-08T23:10:27.273Z
2018-01-08T23:10:27.273Z
meshcollider
<p>Considering bitcoin target is <code>0x00000000FFFF0000000000000000000000000000000000000000000000000000</code> and pool target is <code>0x00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF</code>. Won't pool miner miss the valid block if it hashes to <code>0x00000000FFFF100000000000000000000000000000000000000000000000000</code>? Basically this block is valid according to bitcoin target but not pool target. I'm reading <a href="https://en.bitcoin.it/wiki/Difficulty" rel="nofollow noreferrer">https://en.bitcoin.it/wiki/Difficulty</a></p>

<difficulty><mining-pool-shares>
Will there be a problem if bdiff and pdiff are slightly different?
ycshao
# Will there be a problem if bdiff and pdiff are slightly different?

(Asked by: username_0 on 2018-01-08)

Considering bitcoin target is `0x00000000FFFF0000000000000000000000000000000000000000000000000000` and pool target is `0x00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF`. Won't pool miner miss the valid block if it hashes to `0x00000000FFFF100000000000000000000000000000000000000000000000000`? Basically this block is valid according to bitcoin target but not pool target. I'm reading <https://en.bitcoin.it/wiki/Difficulty>

**Tags:** difficulty, mining-pool-shares


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## 1 answers

### Answer by username_1 on 2018-01-08. Score: 2

pdiff, the pool difficulty, is *not* just a different encoding of the same difficulty. Pools set a different (lower) difficulty so that miners can send them more blocks as shares, and calculate how much work they're doing. Valid blocks are still checked against the normal bdiff before submission to the network


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