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From: James Hilliard <james.hilliard1@gmail.com>
To: Tom Zander <tomz@freedommail.ch>
Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] I do not support the BIP 148 UASF
Date: Fri, 14 Apr 2017 14:33:49 -0500	[thread overview]
Message-ID: <CADvTj4pj+opWPy5BLT+64Lfys7nGA2PFdzQNNVuRMU8BGhNS5Q@mail.gmail.com> (raw)
In-Reply-To: <1521038.c5zslb6dar@cherry>

On Fri, Apr 14, 2017 at 2:20 PM, Tom Zander via bitcoin-dev
<bitcoin-dev@lists.linuxfoundation.org> wrote:
> On Friday, 14 April 2017 09:56:31 CEST Gregory Maxwell via bitcoin-dev
> wrote:
>> Segwit was carefully engineered so that older unmodified miners could
>> continue operating _completely_ without interruption after segwit
>> activates.
>
>
>> They [Older nodes] can
>> upgrade to it [segwit] on their own schedule. The only risk
>> non-participating
>> miners take after segwit activation is that if someone else mines an
>> invalid block they would extend it,
>
> This is false,
>
> a segwit transaction to the miner you describe is an "everyone can spend"
> transaction, and as such a miner that does not validate the segregated area
> in a post-segwit world will be able to create blocks that will not validate
> for segwit miners by including a transaction that spends a SW tx.
>
> This would then lead to a chain-fork as the SW miners reject it and the non-
> SW miners continue to mine on it.

This is false,

Those "everyone can spend" transactions are prohibited from being
mined due to policy rules. The risk is only in regards to mining on
top of an invalid block that intentionally mined an invalid SW
transaction.
>
>
> --
> Tom Zander
> Blog: https://zander.github.io
> Vlog: https://vimeo.com/channels/tomscryptochannel
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev


  reply	other threads:[~2017-04-14 19:33 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-14  7:56 [bitcoin-dev] I do not support the BIP 148 UASF Gregory Maxwell
2017-04-14 16:50 ` praxeology_guy
2017-04-14 17:36   ` Chris Stewart
2017-04-14 18:33     ` praxeology_guy
2017-04-14 19:12   ` Tom Zander
2017-04-14 19:20 ` Tom Zander
2017-04-14 19:33   ` James Hilliard [this message]
2017-04-14 20:34     ` Tom Zander
2017-04-14 20:51       ` James Hilliard
2017-04-14 20:58         ` Tom Zander
2017-04-14 21:10           ` James Hilliard
2017-04-14 21:12             ` Gregory Maxwell
2017-04-14 20:59       ` Gregory Maxwell
2017-04-15  2:01 ` Steven Pine
2017-04-15  3:05   ` Chris Stewart
2017-04-15  3:29   ` Gregory Maxwell
2017-04-15  4:10     ` Steven Pine
2017-04-15  4:47       ` Gregory Maxwell
2017-04-15  6:28 ` Cameron Garnham
2017-04-15  7:04   ` Gregory Maxwell
2017-04-15  7:46     ` Chris Acheson
2017-04-15 13:23       ` Natanael
2017-04-15 13:54         ` Greg Sanders
2017-04-15  8:05     ` Cameron Garnham
2017-04-20 18:39 ` shaolinfry
2017-04-25 18:28   ` Gregory Maxwell
2017-04-25 18:46     ` Luke Dashjr
2017-05-02 16:54       ` Erik Aronesty
2017-05-22 19:23 ` Suhas Daftuar
2017-05-23  4:03   ` Steven Pine
2017-05-23  6:30     ` Karl Johan Alm
2017-05-23 12:55       ` Luke Dashjr
2017-05-23 13:20         ` Jorge Timón
2017-05-23  9:47     ` Hampus Sjöberg
2017-04-14 10:52 Chris Acheson
2017-04-15 13:42 Mark Friedenbach
2017-04-15 14:54 ` Ryan Grant
2017-04-15 18:50 ` Gregory Maxwell
2017-04-19 16:17   ` Erik Aronesty
2017-04-20 14:23     ` Alphonse Pace
2017-04-20 15:48       ` Erik Aronesty

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