Yes, that's right. The public keys themselves don't grant permission to spend of course, so you can make many copies.

A multi-sig backup scheme could look like the following:

1: HWW #1 + Seed #1 + xPubs #1, #2, #3
2: HWW #2 + Seed #2 + xPubs #1, #2, #3
3: HWW #3 + Seed #3 + xPubs #1, #2, #3

Where the seeds and xPubs are stored on laminated paper.

orthwyrm

Multisig requires the x/y/z Keys to be backed-up too, correct?

Fabs

I mean.. you'd have to type it before you encrypt it. There's a half dozen vulnerabilities on the way to that

Dude, that'd trigger my paranoia to the max.

megaptera

yes, that is good. but an encrypted backup you can just email yourself is good too imo.