Bip39 checksum https://send.now/zchzg5fu4oku You then choose to allow BIP-39 passphrase support in your components wallet and stamp the passphrase(s) on the hexagonal chrome steel rod and retail outlet the rod in the different geographical place for your 24-word seed backup so as to: Some wallets can import various seed phrases https://www.spreaker.com/podcast/palerioiwk--6670096