Well, I thought 0x6d was designed as memo only protocols, though MIP-0003 seems more than a memo protocol. With further designing, 0x6d2[0-2] can be the infrastructure of PKI on BCH.
I think change 0x6d2[0-2] to a long prefix is better.
0x6d20 -> 0x6d2000
0x6d21 -> 0x6d2001
0x6d20 -> 0x6d2002
[0x6d2003, 0x6d20ff] = reserved for futher expantion about keys relation
Good ideas! Appreciate the feedback!
