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From: Peter Todd <pete@petertodd.org>
To: Alex Nagy <optimiz3@hotmail.com>,
	Bitcoin Protocol Discussion
	<bitcoin-dev@lists.linuxfoundation.org>
Cc: Gregory Maxwell <gmaxwell@gmail.com>
Subject: Re: [bitcoin-dev] P2WPKH Scripts, P2PKH Addresses, and Uncompressed Public Keys
Date: Mon, 4 Sep 2017 09:51:35 -0400	[thread overview]
Message-ID: <20170904135135.GE1276@fedora-23-dvm> (raw)
In-Reply-To: <CY4PR1801MB181557B7331133954A3098DD809E0@CY4PR1801MB1815.namprd18.prod.outlook.com>

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On Mon, Aug 28, 2017 at 08:55:47PM +0000, Alex Nagy via bitcoin-dev wrote:
> Thanks Gregory - to be clear should Native P2WPKH scripts only appear in redeem scripts?  From reading the various BIPs it had seemed like Native P2WPKH and Native P2WSH were also valid and identifiable if they were encoded in TxOuts.  The theoretical use case for this would be saving bytes in Txes with many outputs.

It's not a theoretical use-case: the two OpenTimestamps calendar servers I run
- {alice,bob}.btc.calendar.opentimestamps.org - use native P2WPKH segwit
outputs to keep transaction size to the absolute minimum possible; previously
they used bare CHECKSIG <pubkey> output scripts for the same reason.

I enabled support for it the moment segwit activated, so I'm probably the first
ever production user of P2WPKH on mainnet, and quite possibly, the first person
to create P2WPKH outputs on mainnet for any reason.

-- 
https://petertodd.org 'peter'[:-1]@petertodd.org

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  parent reply	other threads:[~2017-09-04 18:42 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-28 15:29 [bitcoin-dev] P2WPKH Scripts, P2PKH Addresses, and Uncompressed Public Keys Alex Nagy
     [not found] ` <CAAS2fgT+HHg_xuuWuGrYcX0ALcBowmY-1Kt6-dzSBOwdcr08HQ@mail.gmail.com>
2017-08-28 17:06   ` [bitcoin-dev] Fwd: " Gregory Maxwell
2017-08-28 20:55   ` [bitcoin-dev] " Alex Nagy
2017-08-29  3:30     ` Johnson Lau
2017-09-04 13:51     ` Peter Todd [this message]
2017-08-28 21:33 ` Mark Friedenbach

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