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References: <a86c2737-db79-4f54-9c1d-51beeb765163n@googlegroups.com> <6f78b702-4bd0-4aa4-ac51-b881d8df9f01@mattcorallo.com>
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From: "James O'Beirne" <james.obeirne@gmail.com>
Date: Mon, 9 Jun 2025 10:43:25 -0400
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Message-ID: <CAPfvXf+t33u1ghz39cqYn4k5ErmxTkUv0njF9Zwbz_2UkdTjAg@mail.gmail.com>
Subject: Re: [bitcoindev] CTV + CSFS: a letter
To: Matt Corallo <lf-lists@mattcorallo.com>
Cc: Bitcoin Development Mailing List <bitcoindev@googlegroups.com>
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On Mon, Jun 9, 2025 at 9:51=E2=80=AFAM Matt Corallo <lf-lists@mattcorallo.c=
om>
wrote:
> That said, I have yet to see a reasoned explanation of why we should
prefer CTV over TXHASH.
From the author of TXHASH himself on Delving Bitcoin
(
https://delvingbitcoin.org/t/ctv-csfs-can-we-reach-consensus-on-a-first-ste=
p-towards-covenants/1509/15
):
> Having implemented TXHASH, I would definitely not say that
> it =E2=80=9Csimplifies the change=E2=80=9D. The difference in both techni=
cal debt and
> potential for bugs is an order of magnitude bigger for TXHASH than for
> CTV. (Not to say that I don=E2=80=99t think TXHASH would be worthwhile, b=
ut I
> will definitely say that it has not received the attention I had
expected,
> so I would definitely not want to put it on the table anytime soon.)
The use-cases that might merit such a jump up in complexity over CTV
have not been enumerated to my knowledge. CTV also includes
upgrade hooks to incorporate modifications should these additional
uses be more fully understood.
Best,
James
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--000000000000dbb0fa0637249a8a
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<div dir=3D"ltr"><div dir=3D"ltr">On Mon, Jun 9, 2025 at 9:51=E2=80=AFAM Ma=
tt Corallo <<a href=3D"mailto:lf-lists@mattcorallo.com">lf-lists@mattcor=
allo.com</a>> wrote:</div><div class=3D"gmail_quote gmail_quote_containe=
r"><div dir=3D"ltr" class=3D"gmail_attr">> That said, I have yet to see =
a reasoned explanation of why we should prefer CTV over TXHASH.=C2=A0</div>=
<div dir=3D"ltr" class=3D"gmail_attr"><br></div><div class=3D"gmail_attr">F=
rom the author of TXHASH himself on Delving Bitcoin</div><div class=3D"gmai=
l_attr">(<a href=3D"https://delvingbitcoin.org/t/ctv-csfs-can-we-reach-cons=
ensus-on-a-first-step-towards-covenants/1509/15">https://delvingbitcoin.org=
/t/ctv-csfs-can-we-reach-consensus-on-a-first-step-towards-covenants/1509/1=
5</a>):</div><div class=3D"gmail_attr"><br></div><div class=3D"gmail_attr">=
>=C2=A0Having implemented TXHASH, I would definitely not say that=C2=A0<=
/div><div class=3D"gmail_attr">> it=20
=E2=80=9Csimplifies the change=E2=80=9D. The difference in both technical d=
ebt and=C2=A0</div><div class=3D"gmail_attr">> potential for bugs is an =
order of magnitude bigger for TXHASH than for=C2=A0</div><div class=3D"gmai=
l_attr">> CTV. (Not to say that I don=E2=80=99t think TXHASH would be wo=
rthwhile, but I=C2=A0</div><div class=3D"gmail_attr">> will definitely s=
ay that it has not received the attention I had=20
expected,=C2=A0</div><div class=3D"gmail_attr">> so I would definitely n=
ot want to put it on the table anytime=20
soon.)</div><div class=3D"gmail_attr"><br></div><div class=3D"gmail_attr">T=
he use-cases that might merit such a jump up in complexity over CTV</div><d=
iv class=3D"gmail_attr">have not been enumerated to my knowledge. CTV also =
includes=C2=A0</div><div class=3D"gmail_attr">upgrade hooks to incorporate =
modifications should these additional</div><div class=3D"gmail_attr">uses b=
e more fully understood.</div><div class=3D"gmail_attr"><br></div><div clas=
s=3D"gmail_attr">Best,</div><div class=3D"gmail_attr">James</div></div></di=
v>
<p></p>
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