390: mention about multipath key expression in musig descriptors #1866

pull rkrux wants to merge 1 commits into bitcoin:master from rkrux:musig-multipath changing 1 files +2 −1

rkrux commented at 1:11 pm on June 5, 2025: contributor

390: mention about multipath key expression in musig descriptors Also, adds an example for the same.
jonatack added the label Proposed BIP modification on Jun 5, 2025
jonatack added the label Pending acceptance on Jun 5, 2025
jonatack commented at 2:01 pm on June 5, 2025: member

cc BIP author @achow101 for approval

in bip-0390.mediawiki:60 in bcd3c0330d outdated

56@@ -57,7 +57,7 @@ only unhardened derivation from the aggregate public key is allowed, and thus th
57 following the <tt>musig()</tt> expression cannot contain
58 <tt>/NUMh</tt> or <tt>/NUM'</tt> derivation steps nor <tt>/*h</tt>, or <tt>/*'</tt> child derivation.
59 For these <tt>musig()</tt> expressions, the KEY expressions contained within must be xpubs or derived from
60-xpubs, and cannot contain child derivation as specified by a <tt>/*</tt>, <tt>/*'</tt>, or <tt>/*h</tt>.
61+xpubs, and cannot contain child derivation as specified by a <tt>/*</tt>, <tt>/*'</tt>, <tt>/*h</tt>, or multipath such as <tt>/<0;1></tt>.

achow101 commented at 8:27 pm on June 5, 2025:

For consistency with the rest of the specification text:

or multipath as specified with <tt>/<NUM;NUM;...></tt>

jonatack added the label PR Author action required on Jun 5, 2025
390: mention about multipath key expression in musig descriptors
Also, adds an example for the same.
099b1807a4
rkrux force-pushed on Jun 6, 2025
jonatack removed the label PR Author action required on Jun 6, 2025
achow101 commented at 5:55 pm on June 18, 2025: member

ACK 099b1807a4d3a1785159e442d47322551964da6b
jonatack removed the label Pending acceptance on Jun 18, 2025
jonatack commented at 6:22 pm on June 18, 2025: member

utACK
jonatack merged this on Jun 18, 2025
jonatack closed this on Jun 18, 2025

Contributors
rkrux jonatack achow101

Labels
Proposed BIP modification