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From: Tamas Blummer <tamas@bitsofproof.com>
In-Reply-To: <CA+s+GJCn9U2kmyMH6w3o+m99NCfO0ws=SccvGBYJv07WVuF=eA@mail.gmail.com>
Date: Wed, 9 Apr 2014 17:37:43 +0200
Message-Id: <05F8CE60-8058-4616-B3CD-511D6972D36C@bitsofproof.com>
References: <CA+s+GJCn9U2kmyMH6w3o+m99NCfO0ws=SccvGBYJv07WVuF=eA@mail.gmail.com>
To: Wladimir <laanwj@gmail.com>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Bitcoind-in-background mode for SPV
	wallets
Precedence: list


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YES

Such a bitcoind is what I called border router in a previous mail.=20

Yes, SPV wallets are getting ahead of features, so people will use them =
also because on size just does not fit all, but all want to ensure being =
on the same trunk of the chain.
Therefore serious user of Bitcoin run a bitcoind as a border router and =
connect SPV wallets with higher functionality to that trusted node(s).

This is what I think the core should focus on: Being a lightweight =
superfast consensus building border router and nothing more. No wallet, =
no GUI, no RPC calls,
no Payment protocol and the rest.

Regards,

Tamas Blummer
http://bitsofproof.com

On 09.04.2014, at 17:29, Wladimir <laanwj@gmail.com> wrote:

> Hello,
>=20
> This is primarily aimed at developers of SPV wallets.
>=20
> 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.
>=20
> It's great to see innovation in wallets, but it's worrying that the =
number of full nodes decreases.=20
>=20
> 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).
>=20
> 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.
>=20
> In exchange the user would get increased (full node level) security, =
as the SPV wallet would have a local trusted node.
>=20
> Does this sound like a good idea?
>=20
> 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?
>=20
> Wladimir
>=20
> =
--------------------------------------------------------------------------=
----
> Put Bad Developers to Shame
> Dominate Development with Jenkins Continuous Integration
> Continuously Automate Build, Test & Deployment=20
> Start a new project now. Try Jenkins in the cloud.
> =
http://p.sf.net/sfu/13600_Cloudbees_______________________________________=
________
> Bitcoin-development mailing list
> Bitcoin-development@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bitcoin-development


--Apple-Mail=_9886D866-9CE0-4786-8513-3ABC2869A1AD
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	charset=us-ascii

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;"><div>YES</div><div><br></div>Such a bitcoind is what =
I called border router in a previous mail.&nbsp;<br><div =
apple-content-edited=3D"true"><br></div><div =
apple-content-edited=3D"true">
Yes, SPV wallets are getting ahead of features, so people will use them =
also because on size just does not fit all, but all want to ensure being =
on the same trunk of the chain.</div><div =
apple-content-edited=3D"true">Therefore serious user of Bitcoin run a =
bitcoind as a border router and connect SPV wallets with higher =
functionality to that trusted node(s).</div><div =
apple-content-edited=3D"true"><br></div><div =
apple-content-edited=3D"true">This is what I think the core should focus =
on: Being a lightweight superfast consensus building border router and =
nothing more. No wallet, no GUI, no RPC calls,</div><div =
apple-content-edited=3D"true">no Payment protocol and the =
rest.</div><div apple-content-edited=3D"true"><br style=3D"color: rgb(0, =
0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
line-height: normal; text-align: -webkit-auto; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; orphans: 2; widows: 2;"><span =
style=3D"color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant: normal; font-weight: normal; =
letter-spacing: normal; line-height: normal; text-align: -webkit-auto; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; orphans: 2; widows: =
2; float: none; display: inline !important;">Regards,</span><br =
style=3D"color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant: normal; font-weight: normal; =
letter-spacing: normal; line-height: normal; text-align: -webkit-auto; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; orphans: 2; widows: =
2;"><br style=3D"color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant: normal; font-weight: normal; =
letter-spacing: normal; line-height: normal; text-align: -webkit-auto; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; orphans: 2; widows: =
2;"><span style=3D"color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: =
-webkit-auto; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; orphans: 2; =
widows: 2; float: none; display: inline !important;">Tamas =
Blummer</span><br style=3D"color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: =
-webkit-auto; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; orphans: 2; =
widows: 2;"><span style=3D"color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; orphans: auto; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: =
0px;"><span style=3D"color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: =
-webkit-auto; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; orphans: 2; =
widows: 2; float: none; display: inline !important;"><a =
href=3D"http://bitsofproof.com">http://bitsofproof.com</a></span>
</span></div>
<br><div><div>On 09.04.2014, at 17:29, Wladimir &lt;<a =
href=3D"mailto:laanwj@gmail.com">laanwj@gmail.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div dir=3D"ltr"><div><div><div>Hello,<br><br>This is =
primarily aimed at developers of SPV wallets.<br><br></div>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.<br>
<br>It's great to see innovation in wallets, but it's worrying that the =
number of full nodes decreases. <br><br>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).<br>
</div><div><br></div>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.<br>
<br>In exchange the user would get increased (full node level) security, =
as the SPV wallet would have a local trusted =
node.<br><br></div><div>Does this sound like a good =
idea?<br></div><div><br></div>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?<br>
<div><br>Wladimir<br><br></div></div>
=
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----<br>Put Bad Developers to Shame<br>Dominate Development with Jenkins =
Continuous Integration<br>Continuously Automate Build, Test &amp; =
Deployment <br>Start a new project now. Try Jenkins in the cloud.<br><a =
href=3D"http://p.sf.net/sfu/13600_Cloudbees_______________________________=
________________">http://p.sf.net/sfu/13600_Cloudbees_____________________=
__________________________</a><br>Bitcoin-development mailing =
list<br>Bitcoin-development@lists.sourceforge.net<br>https://lists.sourcef=
orge.net/lists/listinfo/bitcoin-development<br></blockquote></div><br></bo=
dy></html>=

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