Generate bip39 phrase https://www.anobii.com/en/01000289012ff9b293/profile/activity Checksum development: A checksum is created from this entropy using SHA-256 hashing, which allows validate the mnemonic's integrity later. For words that only have three letters, there is not any 4th letter. As an example While using the word “insert”, there are no more letters afterwards https://bookmarkfriend.com/story19881796/bip39-mnemonic-word-list-the-smart-trick-of-bip39-wallet-that-no-one-is-discussing-https-dzen-ru-bip39-phrase-com