Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1U5k6L-00089W-AK for bitcoin-development@lists.sourceforge.net; Wed, 13 Feb 2013 21:42:49 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of praus.net designates 209.85.217.178 as permitted sender) client-ip=209.85.217.178; envelope-from=petr@praus.net; helo=mail-lb0-f178.google.com; Received: from mail-lb0-f178.google.com ([209.85.217.178]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1U5k6H-0000RG-IN for bitcoin-development@lists.sourceforge.net; Wed, 13 Feb 2013 21:42:49 +0000 Received: by mail-lb0-f178.google.com with SMTP id n1so1312377lba.9 for ; Wed, 13 Feb 2013 13:42:38 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:mime-version:x-originating-ip:in-reply-to:references :from:date:message-id:subject:to:cc:content-type:x-gm-message-state; bh=/yFXbNZ3AFikBB7UpfBKDyjjyQLIxm8D1D4Af3AGc7A=; b=Vd4GqNQVOQwVHosv3eHpAEjG7qeea00LcQLyaYwN8gFFQSjowsEiJUglH3qwPBV9hA FEDT5fuwdSVn+6k/qww3tDNI2iau8vkFTgx3QbNLDb18kg1too/i2ApNdL9PtzMygiC1 5CipztP62+NjheEjYHzgd2yqMbJ90tnHuz4RhG1sbqXZAATS0ZgUNDColWFVc9WNEH8i xEI46+G4u7BgCw68tE4INkTvR2X0ohxDWa+PeJW7gkKdG6kfPpgqXBWry35DAGu5BJZk 5RpiYgbalbv0MFEhIT1ks2eXzKTRgDjDhKyuWFDhjxvWCBVFH3zb/o/YCwTRxjfRqyO/ BefA== X-Received: by 10.152.48.113 with SMTP id k17mr1956693lan.29.1360791758350; Wed, 13 Feb 2013 13:42:38 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.45.5 with HTTP; Wed, 13 Feb 2013 13:42:17 -0800 (PST) X-Originating-IP: [24.155.29.161] In-Reply-To: References: From: Petr Praus Date: Wed, 13 Feb 2013 15:42:17 -0600 Message-ID: To: =?UTF-8?B?Sm9yZ2UgVGltw7Nu?= Content-Type: multipart/alternative; boundary=bcaec55244145eaa5304d5a20512 X-Gm-Message-State: ALoCoQn39/E+MX2Ovpv86m9X1NCudZNBiNMuxX+9sTO7yAL5VbSFxd+IsIzkVxrS7XE8VeuLAzuo X-Spam-Score: -0.6 (/) 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 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 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: 1U5k6H-0000RG-IN Cc: bitcoin-development@lists.sourceforge.net Subject: Re: [Bitcoin-development] Implementing trading across chains 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, 13 Feb 2013 21:42:49 -0000 --bcaec55244145eaa5304d5a20512 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Jorge, thanks for bitcoinx tip, I didn't know about it and it's certainly related. I'll have a closer look Regarding Ripple, I tried it but as far as I can tell, it doesn't have any contract enforcement (by technical means) built in. On 11 February 2013 05:03, Jorge Tim=C3=B3n wrote: > Hi, you may be interested in a couple of related projects. > > Colored coins uses satoshis to represent smart property, shares, IOUs > of another currency...Colored coins can be atomically traded for > bitcoin. If you implement the trade across chains contract they would > also be tradeable for another chain currencies like namecoin or > freicoin. > > http://www.bitcoinx.org/ > > Ripple is a concept by which people that trust each other on a network > are able to pay with IOUs transitively. It has a new p2p > implementation that is still on development. The new implementation > is very similar to bitcoin in certain senses but it has no mining. > Bitcoin IOUs can be traded there. > > https://ripple.com/ > > Good luck with the implementation, this is a good feature to have, > even if it's not on the main client. > > > On 2/8/13, Petr Praus wrote: > > Hi, > > > > I intend to implement trading across chains in a P2P manner (as describ= ed > > by Mike Hearn in > > https://en.bitcoin.it/wiki/Contracts#Example_5:_Trading_across_chains). > > Note, this is indended more as an alternative chain development, I don'= t > > have any plans for merging it back into main client (not because I don'= t > > want to, but because I think it wouldn't be accepted). Before I dive in= to > > it, I thought it might be a good idea to ask here if the community has > any > > useful ideas or comments on this topic? > > > > Thanks to Gary Rowe I know about Open > > Transactions. > > They can do "multicurrency trading" too, but it's objectives are quite > > ambitious and I'm looking at making relatively small changes in the > > mainline Bitcoin client rather than diving into something entirely new. > > > > A little background on why am I doing this, can be found > > here= . > > In short it's part of research towards my Master's thesis (more > precisely, > > an excuse to hack on Bitcoin and sell it as research :)) which should b= e > > about multicurrency (alternative chains) in Bitcoin. > > > > Thanks, > > Petr > > > > PS: I hope I'm not too off topic here, but > > this thread > > indicates it should be fine to post alternative development questions o= n > > this. > > > > > -- > Jorge Tim=C3=B3n > > http://freico.in/ > http://archive.ripple-project.org/ > --bcaec55244145eaa5304d5a20512 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Jorge, thanks for bitcoinx tip, I didn't know about it= and it's certainly related. I'll have a closer look
Rega= rding Ripple, I tried it but as far as I can tell, it doesn't have any = contract enforcement (by technical means) built in.


On 11 F= ebruary 2013 05:03, Jorge Tim=C3=B3n <jtimonmv@gmail.com> w= rote:
Hi, you may be interested in a couple of related projects.

Colored coins uses satoshis to represent smart property, shares, IOUs
of another currency...Colored coins can be atomically traded for
bitcoin. If you implement the trade across chains contract they would
also be tradeable for another chain currencies like namecoin or
freicoin.

http://www.bitcoinx.= org/

Ripple is a concept by which people that trust each other on a network
are able to pay with IOUs transitively. It has a new p2p
implementation =C2=A0that is still on development. The new implementation is very similar to bitcoin in certain senses but it has no mining.
Bitcoin IOUs can be traded there.

https://ripple.com/
Good luck with the implementation, this is a good feature to have,
even if it's not on the main client.


On 2/8/13, Petr Praus <petr@praus.net<= /a>> wrote:
> Hi,
>
> I intend to implement trading across chains in a P2P manner (as descri= bed
> by Mike Hearn in
> https://en.bitcoin.it/wiki/Contracts#Example_= 5:_Trading_across_chains).
> Note, this is indended more as an alternative chain development, I don= 't
> have any plans for merging it back into main client (not because I don= 't
> want to, but because I think it wouldn't be accepted). Before I di= ve into
> it, I thought it might be a good idea to ask here if the community has= any
> useful ideas or comments on this topic?
>
> Thanks to Gary Rowe I know about Open
> Transactions<https://github.com/FellowTraveler/Open-Tr= ansactions>.
> They can do "multicurrency trading" too, b= ut it's objectives are quite
> ambitious and I'm looking at making relatively small changes in th= e
> mainline Bitcoin client rather than diving into something entirely new= .
>
> A little background on why am I doing this, can be found
> here<https://groups.google.com/d/topic/b= itcoinj/lmVSF8yaJHk/discussion>.
> In short it's part of research towards my Master= 's thesis (more precisely,
> an excuse to hack on Bitcoin and sell it as research :)) which should = be
> about multicurrency (alternative chains) in Bitcoin.
>
> Thanks,
> Petr
>
> PS: I hope I'm not too off topic here, but
> this<https://bitcointalk.org/index.php?topic=3D15527.0> thread
> indicates it should be fine to= post alternative development questions on
> this.
>


--
Jorge Tim=C3=B3n

http://freico.in/
http://arc= hive.ripple-project.org/

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