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

1. 
   rkrux commented at 1:11 pm on June 5, 2025: none

   390: mention about multipath key expression in musig descriptors Also, adds an example for the same.
2. jonatack added the label Proposed BIP modification on Jun 5, 2025
3. jonatack added the label Pending acceptance on Jun 5, 2025
4. 
   jonatack commented at 2:01 pm on June 5, 2025: member

   cc BIP author @achow101 for approval
5. in bip-0390.mediawiki:60 in bcd3c0330d outdated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>
   

6. jonatack added the label PR Author action required on Jun 5, 2025
7. 390: mention about multipath key expression in musig descriptors

   Also, adds an example for the same.

   099b1807a4
8. rkrux force-pushed on Jun 6, 2025
9. jonatack removed the label PR Author action required on Jun 6, 2025

Contributors
rkrux jonatack achow101

Labels
Proposed BIP modification Pending acceptance