-snip-
The wallet is V3
My guess is still those QR codes show the pubkey for the blocktrail wallet, and i don't have those xprv keys to those.
Yes, in V2 or V3, those should be Blocktrail's.
Usually the backup has your two cosigner keys derived from "
primarySeed" and "
backupSeed", then one pubKey from Blocktrail.
It's unusual to see a second blocktrailKey for V3 backup,
but I'm not very familiar with it so I'd still suggest you to contact the (
former?) representative here in Bitcointalk.