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From: Jeremy <jlrubin@mit.edu>
Date: Wed, 28 Jul 2021 15:30:19 -0700
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To: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Content-Type: multipart/alternative; boundary="000000000000b2794105c836886a"
Subject: Re: [bitcoin-dev] Covenant opcode proposal OP_CONSTRAINDESTINATION
 (an alternative to OP_CTV)
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High level feedback:

you should spec out the opcodes as separate pieces of functionality as it
sounds like OP_CD is really 3 or 4 opcodes in one (e.g., amounts to
outputs, output addresses, something with fees).

One major drawback of your approach is that all transactions are twice as
large as they might otherwise need to be for simple things like congestion
control trees, since you have to repeat all of the output data twice.

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small;color:rgb(0,0,0)">High level feedback:</=
div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-=
serif;font-size:small;color:rgb(0,0,0)"><br></div><div class=3D"gmail_defau=
lt" style=3D"font-family:arial,helvetica,sans-serif;font-size:small;color:r=
gb(0,0,0)">you should spec out the opcodes as separate pieces of functional=
ity as it sounds like OP_CD is really 3 or 4 opcodes in one (e.g., amounts =
to outputs, output addresses, something with fees).</div><div class=3D"gmai=
l_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small;=
color:rgb(0,0,0)"><br></div><div class=3D"gmail_default" style=3D"font-fami=
ly:arial,helvetica,sans-serif;font-size:small;color:rgb(0,0,0)">One major d=
rawback of your approach is that all transactions are twice as large as the=
y might otherwise need to be for simple things like congestion control tree=
s, since you have to repeat all of the output data twice.</div><div class=
=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-siz=
e:small;color:rgb(0,0,0)"></div></div>

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