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

Brian Hoffman brianchoffman at gmail.com
Wed Apr 9 15:42:31 UTC 2014

How would this affect the user in terms of disk storage? They're going to
get hammered on space constraints aren't they? If it's not required how
likely are users to enable this?

On Wed, Apr 9, 2014 at 11:29 AM, Wladimir <laanwj at gmail.com> wrote:

> Hello,
> This is primarily aimed at developers of SPV wallets.
> The recently reported decrease in number of full nodes could have several
> reasons, one of them that less people are running Bitcoin Core for the
> wallet because the other wallets are getting ahead in both features and
> useability.
> It's great to see innovation in wallets, but it's worrying that the number
> of full nodes decreases.
> It may be that lots of people would support the network by running a full
> node, but don't want to go through the trouble of installing bitcoin core
> separately (and get confused because it's a wallet, too).
> Hence I'd like to explore the idea of adding an option to popular SPV
> wallets, to spin a bitcoind process in the background. This could be pretty
> much transparent to the user - it would sync in the background, the wallet
> could show statistics about the node, but is not dependent on it.
> In exchange the user would get increased (full node level) security, as
> the SPV wallet would have a local trusted node.
> Does this sound like a good idea?
> Is there any way that Bitcoin Core can help to accomedate this 'embedded'
> usage? Specific Interfaces, special builds - maybe add a walletless
> bitcoind build to gitian - bindings, dlls, etc?
> Wladimir
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