From: Jeff Garzik <jgarzik@bitpay•com>
To: Tom Harding <tomh@thinlink•com>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] deterministic transaction expiration
Date: Wed, 6 Aug 2014 08:55:51 -0400 [thread overview]
Message-ID: <CAJHLa0MfRhCPX8H92qc1kSebc=WrUzmSgbG331t4-zDHhTNu4w@mail.gmail.com> (raw)
In-Reply-To: <53E1A8AF.4030206@thinlink.com>
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...and existing users and uses of nLockTime suddenly become worthless,
breaking payment channel refunds and other active uses of nLockTime.
You cannot assume the user is around to rewrite their nLockTime, if it
fails to be confirmed before some arbitrary deadline being set.
On Wed, Aug 6, 2014 at 12:01 AM, Tom Harding <tomh@thinlink•com> wrote:
> On 8/5/2014 12:10 PM, Kaz Wesley wrote:
> > Any approach based on beginning a transaction expiry countdown when a
> > transaction is received (as in mempool janitor) seems unviable to me:
> > once a node has forgotten a transaction, it must be susceptible to
> > reaccepting it;
>
> It's hard to argue with that logic.
>
> If nLockTime is used for expiration, transaction creator can't lie to
> help tx live longer without pushing initial confirmation eligibility
> into the future. Very pretty. It would also enable "fill or kill"
> transactions with a backdated nLockTime, which must be confirmed in a
> few blocks, or start vanishing from mempools.
>
>
>
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--
Jeff Garzik
Bitcoin core developer and open source evangelist
BitPay, Inc. https://bitpay.com/
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next prev parent reply other threads:[~2014-08-06 12:56 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-01 0:58 Kaz Wesley
2014-08-01 1:06 ` Peter Todd
2014-08-01 1:37 ` Kaz Wesley
2014-08-01 1:38 ` Matt Whitlock
2014-08-01 2:28 ` Gregory Maxwell
2014-08-01 3:26 ` Matt Whitlock
2014-08-01 3:31 ` Gregory Maxwell
2014-08-05 18:01 ` Alex Mizrahi
2014-08-02 0:36 ` Tom Harding
2014-08-05 17:02 ` Flavien Charlon
2014-08-05 17:48 ` Jeff Garzik
2014-08-05 18:54 ` Mike Hearn
2014-08-05 19:08 ` Jeff Garzik
2014-08-05 19:10 ` Kaz Wesley
2014-08-05 19:36 ` Jeff Garzik
2014-08-06 4:01 ` Tom Harding
2014-08-06 12:55 ` Jeff Garzik [this message]
2014-08-06 13:54 ` Mike Hearn
2014-08-06 14:44 ` Tom Harding
2014-08-06 15:08 ` Jeff Garzik
2014-08-06 15:17 ` Christian Decker
2014-08-06 15:42 ` Peter Todd
2014-08-06 16:15 ` Jeff Garzik
2014-08-06 17:02 ` Tom Harding
2014-08-06 17:21 ` Mark Friedenbach
2014-08-06 17:34 ` Peter Todd
2014-08-06 17:24 ` Jeff Garzik
2014-08-06 16:31 ` Mark Friedenbach
2014-08-06 17:20 ` Peter Todd
2014-08-06 17:30 ` Mark Friedenbach
2014-08-06 17:38 ` Peter Todd
2014-08-08 17:38 ` Tom Harding
2014-08-08 18:13 ` Jeff Garzik
2014-08-08 18:42 ` Kaz Wesley
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