[Bitcoin-development] Economics of information propagation

Mike Hearn mike at plan99.net
Mon Apr 21 16:39:31 UTC 2014

Pieter tried it already. If the two nodes views of each others mempools are
not exactly in alignment it ends up being slower than just sending the data
immediately and redundantly.

On Mon, Apr 21, 2014 at 6:38 PM, Mark Friedenbach <mark at monetize.io> wrote:

> Yes, it certainly can be improved in this way. You can even extend the
> idea to distribute partial proofs of work (block headers + Merkle lists
> which represent significant but not sufficient work), and 'prime' your
> memory pools with the transactions contained within.
> This is, btw, basically what p2pool does, which is why last time I
> calculated you get roughly 1% better return from p2pool than a zero-fee
> mining pool would get you, specifically because of the lower stale rate.
> On 04/21/2014 09:22 AM, Paul Lyon wrote:
> > I haven't done the math on this, so it may be a terrible idea. :)
> >
> > I've been wondering if block propagation times could also be improved by
> > allowing peers to request the list of transaction hashes that make up a
> > block, and then making a follow-up request to only download any
> > transactions not currently known. I'm not sure what percentage of
> > transactions a node will usually already have when it receives a new
> > block, but if it's high I figure this could be beneficial.
> >
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