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From: Christopher Allen <ChristopherA@lifewithalacrity.com>
Date: Wed, 15 Aug 2018 14:54:50 -0700
Message-ID: <CACrqygBJ=RdPpHqHzPNqqj0V2w5XL6GVtKobOWnj1EsVykUS8w@mail.gmail.com>
To: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>,
	Jude Nelson <judecn@gmail.com>
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Subject: Re: [bitcoin-dev] Claiming an OP_RETURN Prefix
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On Wed, Aug 15, 2018 at 2:24 PM Jude Nelson via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:

> Can a miner identify which transactions came from your software simply by
> running a copy themselves?  If so, then they can censor your transactions
> no matter how you encode them.
>

Possibly, but in the IPFS case I suspect the latency required to inspect
all hashes would likely  impact the ability of the miner to succeed in the
block. (True? I don=E2=80=99t touch mining software.)

Thus as long as all hashes look the same, and there are multiple content
addressable schemes that use hashes that have to be searched in order to
know to censor, you have to censor all or none.

=E2=80=94 Christopher Allen

>

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<div>On Wed, Aug 15, 2018 at 2:24 PM Jude Nelson via bitcoin-dev &lt;<a hre=
f=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" target=3D"_blank">bitcoi=
n-dev@lists.linuxfoundation.org</a>&gt; wrote:<br></div><div><div class=3D"=
gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;b=
order-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div>Can a min=
er identify which transactions came from your software simply by running a =
copy themselves?=C2=A0 If so, then they can censor your transactions no mat=
ter how you encode them.</div></div></blockquote><div dir=3D"auto"><br></di=
v><div dir=3D"auto">Possibly, but in the IPFS case I suspect the latency re=
quired to inspect all hashes would likely =C2=A0impact the ability of the m=
iner to succeed in the block. (True? I don=E2=80=99t touch mining software.=
)</div><div dir=3D"auto"><br></div><div dir=3D"auto">Thus as long as all ha=
shes look the same, and there are multiple content addressable schemes that=
 use hashes that have to be searched in order to know to censor, you have t=
o censor all or none.</div><div dir=3D"auto"><br></div><div dir=3D"auto">=
=E2=80=94 Christopher Allen</div><blockquote class=3D"gmail_quote" style=3D=
"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D=
"ltr"><div></div></div></blockquote></div></div>

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