Bip39 Checksum. At first you should retail store it SEPARATELY out of your seed. Getting your seed as well as your passphrase in exactly the same location defeats the goal of having a passphrase in the first place. These guidelines make an application for every single language. On top of https://companyspage.com/story4357988/bip-39-https-linktr-ee-bip39-getting-my-ian-coleman-bip39-to-work