Bip39. Don't forget, there's no this kind of detail being a “Mistaken” passphrase. Each different passphrase you enter is often a completely new wallet. Be mindful when recovering your seed with a passphrase. Certainly, BIP39 passphrases are situation-sensitive. Make sure to enter your passphrase just as you set it up, https://friendlybookmark.com/story19401108/ian-coleman-bip39-https-linktr-ee-bip39-bip39-generator-an-overview