Bip39 ethereum https://giphy.com/channel/ebliciwsah Checksum generation: A checksum is generated from this entropy working with SHA-256 hashing, which helps confirm the mnemonic's integrity later on. Unlike standard wallets derived only from a seed phrase, passphrase-secured wallets are hidden from basic sight. They exist inside of a sort of cryptographic shadow realm, https://penzu.com/p/2ea6922b70254307