Bip39 vocabulary https://gravatar.com/sparklyusually6089a4f337 Checksum generation: A checksum is created from this entropy using SHA-256 hashing, which will help validate the mnemonic's integrity later. Not like standard wallets derived only from the seed phrase, passphrase-shielded wallets are concealed from basic sight. They exist in a very sort of cryptographic shadow realm, https://bookmarkunit.com/story20378209/bip39-wallet-detailed-notes-on-bip39-wallet-https-x-com-tundra838554 
