[bitcoin-dev] [BIP Draft] Datastream compression of Blocks and Transactions

Gavin Andresen gavinandresen at gmail.com
Thu Dec 3 19:14:55 UTC 2015

On Wed, Dec 2, 2015 at 1:57 PM, Emin Gün Sirer <
bitcoin-dev at lists.linuxfoundation.org> wrote:

> How to Do It
> If we want to compress Bitcoin, a programming challenge/contest would be
> one of the best ways to find the best possible, Bitcoin-specific
> compressor. This is the kind of self-contained exercise that bright young
> hackers love to tackle. It'd bring in new programmers into the ecosystem,
> and many of us would love to discover the limits of compressibility for
> Bitcoin bits on a wire. And the results would be interesting even if the
> final compression engine is not enabled by default, or not even merged.

I love this idea. Lets build a standardized data set to test against using
real data from the network (has anybody done this yet?).

Something like:

Starting network topology:
list of:  nodeid, nodeid, network latency between the two peers

Changes to network topology:
list of:  nodeid, add/remove nodeid, time of change

Transaction broadcasts:
list of :  transaction, node id that first broadcast, time first broadcast

Block broadcasts:
list of :  block, node id that first broadcast, time first broadcast

Proposed transaction/block optimizations could then be measured against
this standard data set.

Gavin Andresen
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