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From: "James O'Beirne" <james.obeirne@gmail•com>
To: "Russell O'Connor" <roconnor@blockstream•com>,
	 Bitcoin Protocol Discussion
	<bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] TXHASH + CHECKSIGFROMSTACKVERIFY in lieu of CTV and ANYPREVOUT
Date: Fri, 28 Jan 2022 10:14:12 -0500	[thread overview]
Message-ID: <CAPfvXfLWtDvgJYwQCaxnww5jyQkqFsi6aG0OUxtp3Okx_ab7Hw@mail.gmail.com> (raw)
In-Reply-To: <CAMZUoKkvoJs0WtN71A_qRSwToP4YnY707WdW3C-KJYGXsmkjSw@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 1429 bytes --]

> Technical debt isn't a measure of weight of transactions.

Sorry, my original sentence was a little unclear. I meant to say that the
notion that CTV is just a subpar waypoint en route to a more general
covenant system may not be accurate if it is a more efficient way (in terms
of chainstate/weight) to express highly useful patterns like vaults. In
that case, characterizing CTV as technical debt wouldn't be right.

> Our only option here is to be mindful of the long term implications of
the design choices we are making today.

Your points are well taken - I don't think anyone is arguing against
thinking hard about consensus changes. But I have yet to see a proposal for
covenants that is as efficient on-chain and easy to reason about as CTV is.

I also think there's some value in "legging into" covenants by deploying a
simple, non-recursive construction like CTV that services some very
important uses, and then taking as much time as necessary to think about
how to solve more existential problems, like UTXO scalability, that likely
require a recursive covenant construction.

There doesn't have to be mutual exclusion in the approaches, especially
when the maintenance burden of CTV seems to be so low. If we end up
deploying something that requires a wider variety of in-script hashing, it
seems likely that CTV's hash will be able to "free ride" on whatever more
general sighash cache structure we come up with.

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  reply	other threads:[~2022-01-28 15:14 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-26 17:20 Russell O'Connor
2022-01-26 22:16 ` Jeremy
2022-01-27  4:20   ` James Lu
2022-01-27 19:16   ` Russell O'Connor
2022-01-28  0:18     ` James O'Beirne
2022-01-28 13:14       ` Michael Folkson
2022-01-28 14:17         ` Anthony Towns
2022-01-28 16:38           ` Jeremy
2022-01-28 14:13       ` Russell O'Connor
2022-01-28 15:14         ` James O'Beirne [this message]
2022-01-29 15:43           ` Russell O'Connor
2022-01-29 17:02             ` Jeremy Rubin
     [not found]             ` <CAD5xwhjHv2EGYb33p2MRS=VSz=ciGwAsiafX1yRHjxQEXfykSA@mail.gmail.com>
2022-01-29 17:14               ` Russell O'Connor
2022-01-31  2:18       ` Anthony Towns
2022-01-28  1:34 ` Anthony Towns
2022-01-28 13:56   ` Russell O'Connor
2022-02-01  1:16     ` Anthony Towns
2022-02-08  2:16       ` Russell O'Connor
2022-02-17 14:27         ` Anthony Towns
2022-02-17 14:50           ` Russell O'Connor
2022-02-08  3:40 ` Rusty Russell
2022-02-08  4:34   ` Jeremy Rubin
2022-02-11  0:55     ` [bitcoin-dev] Recursive covenant opposition, or the absence thereof, was " David A. Harding
2022-02-11  3:42       ` Jeremy Rubin
2022-02-11 17:42       ` James O'Beirne
2022-02-11 18:12         ` digital vagabond
2022-02-12 10:54           ` darosior
2022-02-12 15:59             ` Billy Tetrud
2022-02-17 15:15           ` Anthony Towns
2022-02-18  7:34       ` ZmnSCPxj
2022-02-23 11:28       ` ZmnSCPxj
2022-02-23 18:14         ` Paul Sztorc
2022-02-24  2:20           ` ZmnSCPxj
2022-02-24  6:53         ` Anthony Towns
2022-02-24 12:03           ` ZmnSCPxj
2022-02-26  5:38             ` Billy Tetrud
2022-02-26  6:43               ` ZmnSCPxj
2022-02-27  0:58                 ` Paul Sztorc
2022-02-27  2:00                   ` ZmnSCPxj
2022-02-27  7:25                     ` ZmnSCPxj
2022-02-27 16:59                       ` Billy Tetrud
2022-02-27 23:50                         ` Paul Sztorc
2022-02-28  0:20                     ` Paul Sztorc
2022-02-28  6:49                       ` ZmnSCPxj
2022-02-28  7:55                         ` vjudeu
2022-03-04  8:42                           ` ZmnSCPxj
2022-03-04 13:43                             ` vjudeu
2022-02-28 22:54                         ` Paul Sztorc
2022-03-01  5:39                           ` Billy Tetrud
2022-03-02  0:00                             ` Paul Sztorc
2022-03-04 12:35                               ` Billy Tetrud
2022-03-04 20:06                                 ` Paul Sztorc
2022-02-26  6:00             ` Anthony Towns
2022-02-15  8:45     ` [bitcoin-dev] " Rusty Russell
2022-02-15 18:57       ` Jeremy Rubin
2022-02-15 19:12         ` Russell O'Connor
2022-02-16  2:26         ` Rusty Russell
2022-02-16  4:10           ` Russell O'Connor

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