Bip39 word list https://www.divephotoguide.com/user/arwyneglmp/ Checksum creation: A checksum is generated from this entropy working with SHA-256 hashing, which can help verify the mnemonic's integrity later. For words that only have three letters, there is absolutely no 4th letter. For instance with the word “insert”, there won't be any additional letters https://bookmarkchamp.com/story20574549/bip39-invalid-mnemonic-the-greatest-guide-to-bip39-https-t-me-bip39-chat