<div dir="ltr"> ...and existing users and uses of nLockTime suddenly become worthless, breaking payment channel refunds and other active uses of nLockTime.<br><br>You cannot assume the user is around to rewrite their nLockTime, if it fails to be confirmed before some arbitrary deadline being set.<br>
<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Aug 6, 2014 at 12:01 AM, Tom Harding <span dir="ltr"><<a href="mailto:tomh@thinlink.com" target="_blank">tomh@thinlink.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="">On 8/5/2014 12:10 PM, Kaz Wesley wrote:<br>
> Any approach based on beginning a transaction expiry countdown when a<br>
> transaction is received (as in mempool janitor) seems unviable to me:<br>
> once a node has forgotten a transaction, it must be susceptible to<br>
> reaccepting it;<br>
<br>
</div>It's hard to argue with that logic.<br>
<br>
If nLockTime is used for expiration, transaction creator can't lie to<br>
help tx live longer without pushing initial confirmation eligibility<br>
into the future. Very pretty. It would also enable "fill or kill"<br>
transactions with a backdated nLockTime, which must be confirmed in a<br>
few blocks, or start vanishing from mempools.<br>
<br>
<br>
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