From: Pieter Wuille <pieter.wuille@gmail•com>
To: Mike Hearn <mike@plan99•net>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>,
Jonas Schnelli <jonas.schnelli@include7•ch>
Subject: Re: [Bitcoin-development] Introducing BitcoinKit.framework
Date: Sun, 21 Jul 2013 17:55:14 +0200 [thread overview]
Message-ID: <20130721155513.GA3107@vps7135.xlshosting.net> (raw)
In-Reply-To: <CANEZrP12V_5Ak0f91RsMziuqXysde102rGeSko=qPBjefy3AeA@mail.gmail.com>
On Tue, Jul 16, 2013 at 12:59:56PM +0200, Mike Hearn wrote:
> I think that's a great approach. Here is the patch Satoshi sent me back in
> 2010. All the code has changed since but it can be a source of inspiration.
>
> >From Satoshi:
>
> *The simplified payment verification in the paper imagined you would
> receive transactions directly, as with sending to IP address which nobody
> uses, or a node would index all transactions by public key and you could
> download them like downloading mail from a mail server.
I'm currently working on headers-first sync, which I believe is generally
very useful (it fixes tons of edge-cases block synchronization currently
experiences), but it's also a first step towards SPV mode.
So headers-first sync means you first synchronize just the headers, and then,
when you already know (or have strong evidence for a guess on) the best chain,
start requesting blocks along that best chain - potentially in parallel from
different peers.
SPV mode is basically headers-first sync, but never do the full block sync
step, and replace it with a bloom/birthday/...-based fetching of blocks
interesting to the associated wallets. In SPV you'll also need to disable
the mempool though, and there will be more small changes, but I think
the separate headers-sync phase will be most of the work.
--
Pieter
next prev parent reply other threads:[~2013-07-21 15:55 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-15 10:07 Wendell
2013-07-15 13:19 ` Mike Hearn
2013-07-15 14:39 ` Wendell
2013-07-15 15:48 ` Mike Hearn
[not found] ` <3E7894A0-06F3-453D-87F8-975A244EBACF@include7.ch>
2013-07-15 20:08 ` Mike Hearn
[not found] ` <2BDA0943-22BB-4405-9AF0-86FB41FD04A6@include7.ch>
2013-07-16 9:21 ` Mike Hearn
[not found] ` <2F20A509-13A9-4C84-86D7-A15C21BACD53@include7.ch>
2013-07-16 9:51 ` Mike Hearn
2013-07-16 10:17 ` Wendell
2013-07-16 10:59 ` Mike Hearn
2013-07-16 14:16 ` [Bitcoin-development] SPV bitcoind? (was: Introducing BitcoinKit.framework) Wendell
2013-07-16 15:09 ` Mike Hearn
2013-07-17 10:58 ` Peter Todd
2013-07-17 12:29 ` Mike Hearn
2013-07-17 14:32 ` [Bitcoin-development] SPV bitcoind? Andreas Schildbach
2013-07-17 19:32 ` Mike Hearn
2013-07-18 12:13 ` [Bitcoin-development] SPV bitcoind? (was: Introducing BitcoinKit.framework) Peter Todd
2013-07-18 13:18 ` Peter Todd
2013-07-18 13:38 ` Mike Hearn
2013-07-17 13:37 ` Wendell
2013-07-17 14:31 ` Michael Gronager
2013-07-17 14:58 ` Wendell
2013-07-17 19:33 ` Mike Hearn
2013-07-17 22:26 ` Michael Gronager
2013-07-17 23:04 ` Gregory Maxwell
2013-07-18 8:19 ` Mike Hearn
2013-07-18 11:40 ` Bazyli Zygan
2013-07-18 13:03 ` Michael Gronager
2013-07-18 13:16 ` Michael Gronager
2013-07-18 16:22 ` Peter Todd
2013-07-18 16:46 ` Wendell
2013-07-18 23:03 ` Peter Todd
2013-07-21 15:55 ` Pieter Wuille [this message]
2013-07-21 17:20 ` [Bitcoin-development] Introducing BitcoinKit.framework Mike Hearn
2013-07-22 13:08 ` Mike Hearn
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