Bip39 first 4 letters http://www.video-bookmark.com/user/tucanewhmt Checksum generation: A checksum is generated from this entropy utilizing SHA-256 hashing, which will help validate the mnemonic's integrity later. For the reason that introducing a passphrase on your seed words produces a completely new wallet, another passphrase you enter (including a passphrase entered improperly) https://padlet.com/alexzhiglatyzbugt/bookmarks-68ta5bpd7yy3slro/wish/PVKBQO1nwDeMWj5x