Bip39 tool github https://www.slideserve.com/lewarthbfp/getting-a-bip39-phrase-in-python-a-comprehensive-tutorial Checksum creation: A checksum is generated from this entropy utilizing SHA-256 hashing, which allows validate the mnemonic's integrity later. For words that only have three letters, there isn't a 4th letter. For example Together with the word “add”, there won't be any addi... https://sociallytraffic.com/story5619849/bip39-tangem-helping-the-others-realize-the-advantages-of-bip39-recovery-tool-https-linktr-ee-bip39