MIME-Version: 1.0
In-Reply-To: <201610022128.52401.luke@dashjr.org>
References: <CAKzdR-rsy1m-H4fYFuCim5+YJi_C2kgjxymM8A7_nEuqsZoO+g@mail.gmail.com>
	<20161002171137.GA18452@fedora-21-dvm>
	<CAAy62_+cqR0-DBbKhePo+VqTJc099zXJR0EurLyb1XURUCT36g@mail.gmail.com>
	<201610022128.52401.luke@dashjr.org>
From: "Russell O'Connor" <roconnor@blockstream.io>
Date: Sun, 2 Oct 2016 17:54:08 -0400
Message-ID: <CAMZUoK=fiLDi9w9PZLT-+Mbg5VFdrfBXm6qA69xjC3YwskW_mQ@mail.gmail.com>
To: Luke Dashjr <luke@dashjr.org>, 
	Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Content-Type: multipart/alternative; boundary=001a114377b2201dd7053de8dfc8
Subject: Re: [bitcoin-dev] Drivechain proposal using OP_COUNT_ACKS
Precedence: list

--001a114377b2201dd7053de8dfc8
Content-Type: text/plain; charset=UTF-8

> I don't know if it's possible to implement decentralised sidechains without
> "breaking" this rule.
>

I haven't really been following the sidechain developements, but my
understanding was that redemption from a side chain would be two phase.
The person unpegging the funds provides a proof that they have locked the
funds on the side chain and are eligible to withdraw the funds, plus they
put up a bounty.  Then there is a time-locked period where others can
collect the bounty by providing a fraud proof, that the locked funds given
in the proof have actually been double spent.  This two phase system
doesn't violate this rule.

--001a114377b2201dd7053de8dfc8
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><br><span class=3D""></span><div class=3D"gmail_extra"><di=
v class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0=
 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class=3D"">
</span>I don&#39;t know if it&#39;s possible to implement decentralised sid=
echains without<br>
&quot;breaking&quot; this rule.<br></blockquote><div><br></div><div>I haven=
&#39;t really been following the sidechain developements, but my understand=
ing was that redemption from a side chain would be two phase.=C2=A0 The per=
son unpegging the funds provides a proof that they have locked the funds on=
 the side chain and are eligible to withdraw the funds, plus they put up a =
bounty.=C2=A0 Then there is a time-locked period where others can collect t=
he bounty by providing a fraud proof, that the locked funds given in the pr=
oof have actually been double spent.=C2=A0 This two phase system doesn&#39;=
t violate this rule.<br></div></div></div></div>

--001a114377b2201dd7053de8dfc8--