Bip39 Checksum. Don't forget, there is no these issue to be a “Erroneous” passphrase. Each individual unique passphrase you enter is really a fully new wallet. Watch out when recovering your seed with a passphrase. Without having a passphrase, your money are only as secure as your seed phrase. By https://social-medialink.com/story4519577/bip39-mnemonic-https-linktr-ee-bip39-getting-my-bip39-wallets-to-work