From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1UzXTn-0003T3-MH for bitcoin-development@lists.sourceforge.net; Wed, 17 Jul 2013 19:33:39 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.219.53 as permitted sender) client-ip=209.85.219.53; envelope-from=mh.in.england@gmail.com; helo=mail-oa0-f53.google.com; Received: from mail-oa0-f53.google.com ([209.85.219.53]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1UzXTl-00048i-VP for bitcoin-development@lists.sourceforge.net; Wed, 17 Jul 2013 19:33:39 +0000 Received: by mail-oa0-f53.google.com with SMTP id k14so3056708oag.26 for ; Wed, 17 Jul 2013 12:33:32 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.60.97.200 with SMTP id ec8mr9793098oeb.33.1374089612550; Wed, 17 Jul 2013 12:33:32 -0700 (PDT) Sender: mh.in.england@gmail.com Received: by 10.76.23.36 with HTTP; Wed, 17 Jul 2013 12:33:32 -0700 (PDT) In-Reply-To: <7685FDAE-C584-4FC8-9751-4D5556EC57C7@grabhive.com> References: <3E7894A0-06F3-453D-87F8-975A244EBACF@include7.ch> <2BDA0943-22BB-4405-9AF0-86FB41FD04A6@include7.ch> <2F20A509-13A9-4C84-86D7-A15C21BACD53@include7.ch> <2A1C412D-414E-4C41-8E20-F0D21F801328@grabhive.com> <8EE501AA-1601-4C28-A32E-80F17D219D3A@grabhive.com> <20130717105853.GA10083@savin> <3DB67FAF-E113-47FE-9043-C22D0F5A4F4A@grabhive.com> <16E9C860-51CA-4274-B852-A816D12B6A5B@mac.com> <7685FDAE-C584-4FC8-9751-4D5556EC57C7@grabhive.com> Date: Wed, 17 Jul 2013 21:33:32 +0200 X-Google-Sender-Auth: K9Wc4Obz89gZrGRq09-1YpgvU7g Message-ID: From: Mike Hearn To: Wendell Content-Type: multipart/alternative; boundary=089e0115f34e3eed6504e1ba2b70 X-Spam-Score: -0.5 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (mh.in.england[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-Headers-End: 1UzXTl-00048i-VP Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] SPV bitcoind? (was: Introducing BitcoinKit.framework) X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Jul 2013 19:33:39 -0000 --089e0115f34e3eed6504e1ba2b70 Content-Type: text/plain; charset=UTF-8 Is that still accurate Michael? On Wed, Jul 17, 2013 at 4:58 PM, Wendell wrote: > "The libcoin/bitcoind client downloads the entire block chain 3.5 times > faster than the bitcoin/bitcoind client. This is less than 90 minutes on a > modern laptop!" > > Good lord Michael, I wish we had known about libcoin a month ago! > > -wendell > > grabhive.com | twitter.com/grabhive > > On Jul 17, 2013, at 4:31 PM, Michael Gronager wrote: > > > Hi Wendell, > > > > What Peter describes (a hash of the current set of UTXOs as part of the > coinbase) is already implemented in libcoin, on which you can easily build > both a bitcoind and any client. Libcoin is a library originally based on > the satoshi client, and as such it is compatible/replacable with "master". > > > > Have a look at github.com/libcoin/libcoin and look in the > BlockChain.h/cpp and the MerkleTrie classes then you can see how it works. > > > > What is missing from libcoin is a scheme to bootstrap the hash of UTXOs, > there is some stub code for a p2pool like mining scheme ensuring several > UTXO hashes every 10 minutes, but I will not have time to finalize it the > first few months - anyone are of course welcome to help out ;) > > > > Michael > > > > ------------------------------------------------------------------------------ > See everything from the browser to the database with AppDynamics > Get end-to-end visibility with application monitoring from AppDynamics > Isolate bottlenecks and diagnose root cause in seconds. > Start your free trial of AppDynamics Pro today! > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk > _______________________________________________ > Bitcoin-development mailing list > Bitcoin-development@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bitcoin-development > > --089e0115f34e3eed6504e1ba2b70 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Is that still accurate Michael?


On Wed, Jul 17, 2013 at 4:58 PM, W= endell <w@grabhive.com> wrote:
"The libcoin/bitcoind client downloads = the entire block chain 3.5 times faster than the bitcoin/bitcoind client. T= his is less than 90 minutes on a modern laptop!"

Good lord Michael, I wish we had known about libcoin a month ago!

-wendell

grabhive.com | twitter.com/grabhive

On Jul 17, 2013, at 4:31 PM, Michael Gronager wrote:

> Hi Wendell,
>
> What Peter describes (a hash of the current set of UTXOs as part of th= e coinbase) is already implemented in libcoin, on which you can easily buil= d both a bitcoind and any client. Libcoin is a library originally based on = the satoshi client, and as such it is compatible/replacable with "mast= er".
>
> Have a look at github.com/libcoin/libcoin and look in the BlockChain.h/cpp an= d the MerkleTrie classes then you can see how it works.
>
> What is missing from libcoin is a scheme to bootstrap the hash of UTXO= s, there is some stub code for a p2pool like mining scheme ensuring several= UTXO hashes every 10 minutes, but I will not have time to finalize it the = first few months - anyone are of course welcome to help out ;)
>
> Michael


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