[Bitcoin-development] Bitcoind-in-background mode for SPV wallets

Wladimir laanwj at gmail.com
Wed Apr 9 19:25:13 UTC 2014

On Wed, Apr 9, 2014 at 6:09 PM, Thomas Voegtlin <thomasv1 at gmx.de> wrote:

> Le 09/04/2014 17:54, Gregory Maxwell a écrit :
> > Sadly today Electrum requires more than a full node, it requires a
> > number of large additional indexes over what a full node has and
> > pruning is precluded. I don't think that increasing the resource
> > utilization of the node is a good way to go there for the purposes
> > expressed here. (not that electrum couldn't be used here, but not
> > unmodified without the resource usage increasing route)
> >
> Electrum uses two large indexes:
>      address -> utxo
> (patricia tree, aka "ultimate blockchain compression", see thread
> started by Alan Reiner in the bitcointalk forum)

Thanks for the explanation.

Adding a RPC call for a "address -> utxo" query wouldn't be a big deal. It
has been requested before for other purposes as well, all the better if it
helps for interaction with Electrum.

Spent history would be involve a much larger index, and it's not likely
that will end up in bitcoin

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