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From: Johnson Lau <jl2012@xbt.hk>
To: Rusty Russell <rusty@rustcorp.com.au>,
	bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] Making OP_TRUE standard?
Date: Thu, 10 May 2018 01:56:46 +0800	[thread overview]
Message-ID: <F8C553EE-9AF5-4348-90B7-3EC55FC46B4C@xbt.hk> (raw)
In-Reply-To: <87po25lmzs.fsf@rustcorp.com.au>

You should make a “0 fee tx with exactly one OP_TRUE output” standard, but nothing else. This makes sure CPFP will always be needed, so the OP_TRUE output won’t pollute the UTXO set

Instead, would you consider to use ANYONECANPAY to sign the tx, so it is possible add more inputs for fees? The total tx size is bigger than the OP_TRUE approach, but you don’t need to ask for any protocol change.

In long-term, I think the right way is to have a more flexible SIGHASH system to allow people to add more inputs and outputs easily.



> On 9 May 2018, at 7:57 AM, Rusty Russell via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> wrote:
> 
> Hi all,
> 
>        The largest problem we are having today with the lightning
> protocol is trying to predict future fees.  Eltoo solves this elegantly,
> but meanwhile we would like to include a 546 satoshi OP_TRUE output in
> commitment transactions so that we use minimal fees and then use CPFP
> (which can't be done at the moment due to CSV delays on outputs).
> 
> Unfortunately, we'd have to P2SH it at the moment as a raw 'OP_TRUE' is
> non-standard.  Are there any reasons not to suggest such a policy
> change?
> 
> Thanks!
> Rusty.
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev




  parent reply	other threads:[~2018-05-09 18:12 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-08 23:57 [bitcoin-dev] Making OP_TRUE standard? Rusty Russell
2018-05-09  0:24 ` Olaoluwa Osuntokun
2018-05-09  3:02   ` ZmnSCPxj
2018-05-10  2:08   ` Rusty Russell
2018-05-09 17:56 ` Johnson Lau [this message]
2018-05-09 19:27   ` Peter Todd
2018-05-09 20:19     ` Johnson Lau
2018-05-09 20:59       ` Peter Todd
2018-05-09 22:06   ` Olaoluwa Osuntokun
2018-05-10  2:06   ` Rusty Russell
2018-05-10  2:27 ` Luke Dashjr
2018-05-10  3:07   ` ZmnSCPxj
2018-05-15  1:22   ` ZmnSCPxj
2018-05-17  2:44   ` Rusty Russell
2018-05-17 10:28     ` ZmnSCPxj
2018-05-17 17:35       ` Christian Decker
2018-05-17 20:06     ` Jim Posen
2018-05-21  3:44       ` Rusty Russell
2018-05-21  3:56         ` Peter Todd
2018-05-30  2:47           ` Rusty Russell
2018-05-31  2:47             ` Rusty Russell
2018-05-21 14:20         ` Russell O'Connor
2018-05-10  9:33 ` Jorge Timón
2018-05-10  9:33   ` Jorge Timón
2018-05-10  9:43   ` Luke Dashjr
2018-05-11  2:44     ` ZmnSCPxj

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