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From: Luke Dashjr <luke@dashjr.org>
To: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] [BIP draft] CHECKLOCKTIMEVERIFY - Prevent a txout from being spent until an expiration time
Date: Wed, 1 Oct 2014 18:23:55 +0000	[thread overview]
Message-ID: <201410011823.56441.luke@dashjr.org> (raw)
In-Reply-To: <20141001130826.GM28710@savin.petertodd.org>

On Wednesday, October 01, 2014 1:08:26 PM Peter Todd wrote:
> I've written a reference implementation and BIP draft for a new opcode,
> CHECKLOCKTIMEVERIFY.

Thoughts on some way to have the stack item be incremented by the height at 
which the scriptPubKey was in a block? A limitation of encoding the target 
height/time directly, is that miners may choose not to mine the first 
transaction until they can also take the "burn to fee". So, one may prefer to 
say "cannot be spent until 100 blocks after the first transaction is mined", 
in effect reproducing the generation maturity rule.

I propose any stack item under 0x40000 be incremented by the height at which 
the scriptPubKey was mined for comparison. Maybe there is a use case for doing 
something similar for time too?

Luke



  parent reply	other threads:[~2014-10-01 18:24 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-01 13:08 [Bitcoin-development] [BIP draft] CHECKLOCKTIMEVERIFY - Prevent a txout from being spent until an expiration time Peter Todd
2014-10-01 15:01 ` Gavin Andresen
2014-10-02  1:06   ` Peter Todd
2014-10-01 15:29 ` Sergio Lerner
2014-10-01 17:06   ` Peter Todd
2014-10-01 18:23 ` Luke Dashjr [this message]
2014-10-01 20:58   ` Gavin Andresen
2014-10-01 21:04     ` Alan Reiner
2014-10-01 21:34       ` Gavin Andresen
2014-10-02  0:12         ` Peter Todd
2014-10-02  0:05   ` Peter Todd
2014-10-02  0:55     ` Luke Dashjr
2014-10-02  1:09       ` Peter Todd
2014-10-02 15:05         ` Flavien Charlon
2014-10-03 14:28           ` Matt Whitlock
2014-10-03 14:30             ` Matt Whitlock
2014-10-03 16:17             ` Gregory Maxwell
2014-10-03 17:50             ` Luke Dashjr
2014-10-03 20:58               ` Mike Hearn
2014-10-03 23:12                 ` Jeff Garzik
2014-10-04  0:38                   ` Peter Todd
2014-10-04 12:58                     ` Mike Hearn
2014-10-07 15:50                       ` Gavin Andresen
2014-10-07 16:08                         ` Mike Hearn
2014-10-08 10:26                           ` Wladimir
2014-10-09  3:13                             ` Alan Reiner
2014-10-09  6:14                               ` Adam Back
2014-10-09  6:28                                 ` Gregory Maxwell
2014-10-09  6:33                                   ` Peter Todd
2014-10-09  6:40                                     ` Gregory Maxwell
2014-10-08  4:07                         ` Tom Harding
2014-10-08 10:15                           ` Mike Hearn
2015-03-16 22:22 ` [Bitcoin-development] Relative CHECKLOCKTIMEVERIFY (was CLTV proposal) Matt Corallo
2015-03-19 17:39   ` Zooko Wilcox-OHearn
2015-04-21  7:59   ` Peter Todd
2015-04-26 11:35     ` Jorge Timón
2015-04-26 12:20       ` Jorge Timón
2015-04-27 19:35         ` Peter Todd
2015-04-28  7:44           ` Jorge Timón
2015-05-04  2:15     ` Matt Corallo
2015-05-04 11:24       ` Jorge Timón
2015-05-05  0:41         ` Btc Drak
2015-05-05 19:19           ` Jorge Timón
2015-05-05 20:38         ` Tier Nolan
2015-05-06  7:37           ` Jorge Timón
2015-05-06 22:09             ` Tier Nolan

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