[Bitcoin-development] Punishing empty blocks?

Joel Joonatan Kaartinen joel.kaartinen at gmail.com
Thu May 24 17:13:32 UTC 2012

I think the strong verification would go well if you add it along with an
optimization that avoids rechecking transactions that have already been
verified as valid. Any transactions it doesn't have to verify are from the
pool, of course :)

On Thu, May 24, 2012 at 7:33 PM, Jeff Garzik <jgarzik at exmulti.com> wrote:

> There appears to be some non-trivial mining power devoted to mining
> empty blocks.  Even with satoshi's key observation -- hash a fixed
> 80-byte header, not the entire block -- some miners still find it
> easier to mine empty blocks, rather than watch the network for new
> transactions.
> Therefore I was wondering what people thought about a client
> implementation change:
>     - Do not store or relay empty blocks, if time since last block < X
>       (where X = 60 minutes, perhaps)
> or even stronger,
>     - Ensure latest block includes at least X percent of mempool
> unconfirmed TXs
> The former is easier to implement, though there is the danger that
> no-TX miners simply include a statically generated transaction or two.
> The latter might be considered problematic, as it might refuse to
> relay quickly found blocks.
> Comments?  It wouldn't be a problem if these no-TX blocks were not
> already getting frequent (1 in 20).
> --
> Jeff Garzik
> exMULTI, Inc.
> jgarzik at exmulti.com
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