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Subject: Re: [Bitcoin-development] Bitcoin difficulty sanity check suggestion
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Maybe it's because the arguments being presented are nonsensical and
irrelevant to the current Bitcoin network topology, composed of a small
number of mining pools, not solo miners? Furthermore I think people would
realize that their mining pool has gone "off the reservation" so to speak.
On Mon, Dec 23, 2013 at 8:05 PM, Allen Piscitello <
allen.piscitello@gmail.com> wrote:
> Ryan,
>
> Why do you continue to try to correct people who clearly have put more
> thought into this than you? Everyone understood you just fine, you just
> seem to have trouble comprehending why your ideas are terrible.
>
>
> On Mon, Dec 23, 2013 at 7:51 PM, Ryan Carboni <ryan.jc.pc@gmail.com>wrote:
>
>> I think you misunderstood my statement. If time > 3 days, and after 4
>> blocks have been mined, then difficulty would be reset.
>>
>> In theory, one would have to isolate roughly one percent of the Bitcoin
>> network's hashing power to do so. Which would indicate an attack by a state
>> actor as opposed to anything else. Arguably, the safest way to run Bitcoin
>> is through a proprietary dial-up network.
>>
>>
>> On Sun, Dec 22, 2013 at 7:22 PM, Mark Friedenbach <mark@monetize.io>wrote:
>>
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>>
>>> Ryan, these sort of adjustments introduce security risks. If you were
>>> isolated from the main chain by a low-hashpower attacker, how would
>>> you know? They'd need just three days without you noticing that
>>> network block generation has stalled - maybe they wait for a long
>>> weekend - then after that the block rate is normal but completely
>>> controlled by the attacker (and isolated from mainnet).
>>>
>>> There are fast acting alternative difficulty adjustment algorithms
>>> being explored by some alts, such as the 9-block interval, 144-block
>>> window, Parks-McClellan FIR filter used by Freicoin to recover from
>>> just such a mining bubble. If it were to happen to bitcoin, there
>>> would be sophisticated alternative to turn to, and enough time to make
>>> the change.
>>>
>>> On 12/22/2013 07:10 PM, Ryan Carboni wrote:
>>> > I think Bitcoin should have a sanity check: after three days if
>>> > only four blocks have been mined, difficulty should be adjusted
>>> > downwards.
>>> >
>>> > This might become important in the near future. I project a
>>> > Bitcoin mining bubble.
>>> >
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>>
>>
>>
>> ------------------------------------------------------------------------------
>> Rapidly troubleshoot problems before they affect your business. Most IT
>> organizations don't have a clear picture of how application performance
>> affects their revenue. With AppDynamics, you get 100% visibility into your
>> Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics
>> Pro!
>>
>> http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
>> _______________________________________________
>> Bitcoin-development mailing list
>> Bitcoin-development@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>>
>>
>
--047d7bfd05621f413704ee42ded5
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">Maybe it's because the arguments being presented are n=
onsensical and irrelevant to the current Bitcoin network topology, composed=
of a small number of mining pools, not solo miners? Furthermore I think pe=
ople would realize that their mining pool has gone "off the reservatio=
n" so to speak.</div>
<div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Mon, Dec 2=
3, 2013 at 8:05 PM, Allen Piscitello <span dir=3D"ltr"><<a href=3D"mailt=
o:allen.piscitello@gmail.com" target=3D"_blank">allen.piscitello@gmail.com<=
/a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr">Ryan,<div><br></div><div>Wh=
y do you continue to try to correct people who clearly have put more though=
t into this than you? =A0Everyone understood you just fine, you just seem t=
o have trouble comprehending why your ideas are terrible.</div>
</div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote"><div><d=
iv class=3D"h5">On Mon, Dec 23, 2013 at 7:51 PM, Ryan Carboni <span dir=3D"=
ltr"><<a href=3D"mailto:ryan.jc.pc@gmail.com" target=3D"_blank">ryan.jc.=
pc@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bo=
rder-left:1px #ccc solid;padding-left:1ex"><div><div class=3D"h5"><div dir=
=3D"ltr">I think you misunderstood my statement. If time > 3 days, and a=
fter 4 blocks have been mined, then difficulty would be reset.<div>
<br></div><div>In theory, one would have to isolate roughly one percent of =
the Bitcoin network's hashing power to do so. Which would indicate an a=
ttack by a state actor as opposed to anything else. Arguably, the safest wa=
y to run Bitcoin is through a proprietary dial-up network.</div>
</div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote"><div>On=
Sun, Dec 22, 2013 at 7:22 PM, Mark Friedenbach <span dir=3D"ltr"><<a hr=
ef=3D"mailto:mark@monetize.io" target=3D"_blank">mark@monetize.io</a>></=
span> wrote:<br>
</div><div><div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8e=
x;border-left:1px #ccc solid;padding-left:1ex">-----BEGIN PGP SIGNED MESSAG=
E-----<br>
Hash: SHA1<br>
<br>
Ryan, these sort of adjustments introduce security risks. If you were<br>
isolated from the main chain by a low-hashpower attacker, how would<br>
you know? They'd need just three days without you noticing that<br>
network block generation has stalled - maybe they wait for a long<br>
weekend - then after that the block rate is normal but completely<br>
controlled by the attacker (and isolated from mainnet).<br>
<br>
There are fast acting alternative difficulty adjustment algorithms<br>
being explored by some alts, such as the 9-block interval, 144-block<br>
window, Parks-McClellan FIR filter used by Freicoin to recover from<br>
just such a mining bubble. If it were to happen to bitcoin, there<br>
would be sophisticated alternative to turn to, and enough time to make<br>
the change.<br>
<div><div><br>
On 12/22/2013 07:10 PM, Ryan Carboni wrote:<br>
> I think Bitcoin should have a sanity check: after three days if<br>
> only four blocks have been mined, difficulty should be adjusted<br>
> downwards.<br>
><br>
> This might become important in the near future. I project a<br>
> Bitcoin mining bubble.<br>
><br>
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</blockquote></div></div></div><br></div>
<br></div></div><div class=3D"im">-----------------------------------------=
-------------------------------------<br>
Rapidly troubleshoot problems before they affect your business. Most IT<br>
organizations don't have a clear picture of how application performance=
<br>
affects their revenue. With AppDynamics, you get 100% visibility into your<=
br>
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynami=
cs Pro!<br>
<a href=3D"http://pubads.g.doubleclick.net/gampad/clk?id=3D84349831&iu=
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velopment</a><br>
<br></div></blockquote></div><br></div>
</blockquote></div><br></div>
--047d7bfd05621f413704ee42ded5--
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