Bip39 implementation http://www.mediafire.com/file/uilrjfajg2ami24/pdf-14673-57158.pdf You then opt to permit BIP-39 passphrase help inside your components wallet and stamp the passphrase(s) on the hexagonal stainless steel rod and retail outlet the rod in a different geographical site to your 24-word seed backup so as to: BIP39 enhances wallet security by building backups https://thesocialcircles.com/story5728678/bip39-finder-helping-the-others-realize-the-advantages-of-bip39-passphrase-https-linktr-ee-bip39