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From: Tamas Blummer <tamas@bitsofproof.com>
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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Bitcoind-in-background mode for SPV
wallets
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Hi Wladimir,
If the motivation of the SPV wallet is to radically extend =
functionality, as in my case, then the index is specific to the added =
features and the subset of the blockchain that is of interest for the =
wallet.
As you also point out, adding huge generic purpose indices to core would =
rather discourage people using full nodes due to excess requirements.=20
I believe nothing would add more to the core=92s popularity as a trusted =
background node to SPV than full validation at lowest possible memory, =
disk and CPU footprint.
Serving headers should be default but storing and serving full blocks =
configurable to ranges, so people can tailor to their bandwith and space =
available.
Tamas Blummer
Bits of Proof
On 09.04.2014, at 21:25, Wladimir <laanwj@gmail.com> wrote:
>=20
>=20
> 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.
>=20
> Spent history would be involve a much larger index, and it's not =
likely that will end up in bitcoin
>=20
> Wladimir
>=20
--Apple-Mail=_70F2039E-A332-409C-88EC-E601F065003B
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hi =
Wladimir,<br><div apple-content-edited=3D"true"><br></div><div =
apple-content-edited=3D"true">If the motivation of the SPV wallet is to =
radically extend functionality, as in my case, then the index is =
specific to the added features and the subset of the blockchain that is =
of interest for the wallet.</div><div apple-content-edited=3D"true">As =
you also point out, adding huge generic purpose indices to core would =
rather discourage people using full nodes due to excess =
requirements. </div><div apple-content-edited=3D"true"><br></div><div=
apple-content-edited=3D"true">I believe nothing would add more to the =
core=92s popularity as a trusted background node to SPV than full =
validation at lowest possible memory, disk and CPU footprint.</div><div =
apple-content-edited=3D"true">Serving headers should be default but =
storing and serving full blocks configurable to ranges, so people can =
tailor to their bandwith and space available.</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;">Tamas Blummer</span><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;"><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;">Bits of =
Proof</span></span></div>
<br><div><div>On 09.04.2014, at 21:25, Wladimir <<a =
href=3D"mailto:laanwj@gmail.com">laanwj@gmail.com</a>> =
wrote:</div><blockquote type=3D"cite"><div dir=3D"ltr"><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><div =
class=3D"h5"><br><br>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.<br>
</div><div class=3D"h5"><br></div><div class=3D"h5">Spent history would =
be involve a much larger index, and it's not likely that will end up in =
bitcoin<br></div><div =
class=3D"h5"><br>Wladimir<br><br></div></div></div></div></blockquote></di=
v><br></body></html>=
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