Hello,
from various information sources, by summary concludes the current seed phrase storage as best:
2 of 3 multisig.
My understanding is a seed phrase will have 24 words.
These 24 words are then engraved onto 3 stainless steel hexkeys, so when 2 of these hex keys are brought together, the 24 words are revealed.
Then the user needs to enter the passphrase to fully recover the wallet.
So, is there a cold wallet with the software to make the multisig, as I don't know how to 'split' the 24 words into the 3 engraved stainless steel hexkeys?
If it's 2 of 3 multi Sig wallet then it would have three seeds, so you need to store three of them secure in whatever way you want to and the purpose of multiple signature wallet is to avoid single point of failure so if one of your seeds exposed then it would still require another 1 from the remaining two to have access to the funds.
Passphrase is extended custom seed word that is to increase the security further so if it's 24 seeds then the passphrase is 25th word, without it you would create different wallet and addresses.
Kind of confused what's really the purpose, is it about finding ways to store the seed words? Then why we are talking about multi Sig and passphrase.