Bip39’s entropy to mnemonic https://gravatar.com/sparklyusually6089a4f337 Checksum generation: A checksum is created from this entropy working with SHA-256 hashing, which will help validate the mnemonic's integrity later on. For words that only have three letters, there's no 4th letter. As an example Using the word “increase”, there isn't any a lot https://leftbookmarks.com/story20850006/bip39n-code-bip39-converter-an-overview-https-linktr-ee-bip39