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From: Petr Praus <petr@praus.net>
Date: Wed, 13 Feb 2013 15:42:17 -0600
Message-ID: <CACezXZ_qqZkg6zN6OFVZYjV_hfkhKgFH2foAqMqwjCAAQCN9QQ@mail.gmail.com>
To: =?UTF-8?B?Sm9yZ2UgVGltw7Nu?= <jtimonmv@gmail.com>
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Cc: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] Implementing trading across chains
Precedence: list

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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 <jtimonmv@gmail.com> 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 <petr@praus.net> 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<https://github.com/FellowTraveler/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<https://groups.google.com/d/topic/bitcoinj/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 b=
e
> > 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 o=
n
> > this.
> >
>
>
> --
> Jorge Tim=C3=B3n
>
> http://freico.in/
> http://archive.ripple-project.org/
>

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<div dir=3D"ltr">Jorge, thanks for bitcoinx tip, I didn&#39;t know about it=
 and it&#39;s certainly related. I&#39;ll have a closer look<div style>Rega=
rding Ripple, I tried it but as far as I can tell, it doesn&#39;t have any =
contract enforcement (by technical means) built in.</div>

</div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On 11 F=
ebruary 2013 05:03, Jorge Tim=C3=B3n <span dir=3D"ltr">&lt;<a href=3D"mailt=
o:jtimonmv@gmail.com" target=3D"_blank">jtimonmv@gmail.com</a>&gt;</span> w=
rote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;borde=
r-left:1px #ccc solid;padding-left:1ex">

Hi, you may be interested in a couple of related projects.<br>
<br>
Colored coins uses satoshis to represent smart property, shares, IOUs<br>
of another currency...Colored coins can be atomically traded for<br>
bitcoin. If you implement the trade across chains contract they would<br>
also be tradeable for another chain currencies like namecoin or<br>
freicoin.<br>
<br>
<a href=3D"http://www.bitcoinx.org/" target=3D"_blank">http://www.bitcoinx.=
org/</a><br>
<br>
Ripple is a concept by which people that trust each other on a network<br>
are able to pay with IOUs transitively. It has a new p2p<br>
implementation =C2=A0that is still on development. The new implementation<b=
r>
is very similar to bitcoin in certain senses but it has no mining.<br>
Bitcoin IOUs can be traded there.<br>
<br>
<a href=3D"https://ripple.com/" target=3D"_blank">https://ripple.com/</a><b=
r>
<br>
Good luck with the implementation, this is a good feature to have,<br>
even if it&#39;s not on the main client.<br>
<div class=3D"im"><br>
<br>
On 2/8/13, Petr Praus &lt;<a href=3D"mailto:petr@praus.net">petr@praus.net<=
/a>&gt; wrote:<br>
&gt; Hi,<br>
&gt;<br>
&gt; I intend to implement trading across chains in a P2P manner (as descri=
bed<br>
&gt; by Mike Hearn in<br>
&gt; <a href=3D"https://en.bitcoin.it/wiki/Contracts#Example_5:_Trading_acr=
oss_chains" target=3D"_blank">https://en.bitcoin.it/wiki/Contracts#Example_=
5:_Trading_across_chains</a>).<br>
&gt; Note, this is indended more as an alternative chain development, I don=
&#39;t<br>
&gt; have any plans for merging it back into main client (not because I don=
&#39;t<br>
&gt; want to, but because I think it wouldn&#39;t be accepted). Before I di=
ve into<br>
&gt; it, I thought it might be a good idea to ask here if the community has=
 any<br>
&gt; useful ideas or comments on this topic?<br>
&gt;<br>
&gt; Thanks to Gary Rowe I know about Open<br>
</div>&gt; Transactions&lt;<a href=3D"https://github.com/FellowTraveler/Ope=
n-Transactions" target=3D"_blank">https://github.com/FellowTraveler/Open-Tr=
ansactions</a>&gt;.<br>
<div class=3D"im">&gt; They can do &quot;multicurrency trading&quot; too, b=
ut it&#39;s objectives are quite<br>
&gt; ambitious and I&#39;m looking at making relatively small changes in th=
e<br>
&gt; mainline Bitcoin client rather than diving into something entirely new=
.<br>
&gt;<br>
&gt; A little background on why am I doing this, can be found<br>
</div>&gt; here&lt;<a href=3D"https://groups.google.com/d/topic/bitcoinj/lm=
VSF8yaJHk/discussion" target=3D"_blank">https://groups.google.com/d/topic/b=
itcoinj/lmVSF8yaJHk/discussion</a>&gt;.<br>
<div class=3D"im">&gt; In short it&#39;s part of research towards my Master=
&#39;s thesis (more precisely,<br>
&gt; an excuse to hack on Bitcoin and sell it as research :)) which should =
be<br>
&gt; about multicurrency (alternative chains) in Bitcoin.<br>
&gt;<br>
&gt; Thanks,<br>
&gt; Petr<br>
&gt;<br>
&gt; PS: I hope I&#39;m not too off topic here, but<br>
</div>&gt; this&lt;<a href=3D"https://bitcointalk.org/index.php?topic=3D155=
27.0" target=3D"_blank">https://bitcointalk.org/index.php?topic=3D15527.0</=
a>&gt; thread<br>
<div class=3D"HOEnZb"><div class=3D"h5">&gt; indicates it should be fine to=
 post alternative development questions on<br>
&gt; this.<br>
&gt;<br>
<br>
<br>
</div></div><span class=3D"HOEnZb"><font color=3D"#888888">--<br>
Jorge Tim=C3=B3n<br>
<br>
<a href=3D"http://freico.in/" target=3D"_blank">http://freico.in/</a><br>
<a href=3D"http://archive.ripple-project.org/" target=3D"_blank">http://arc=
hive.ripple-project.org/</a><br>
</font></span></blockquote></div><br></div>

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