Bip39. As the 24th is a checksum word, a list of 8 valid prospect words are calculated using the Python script 24thword.py. In addition to its precise framework, it ought to utilize a specific list of words when creating your mnemonic phrase. That is referred to as the BIP39 wordlist. https://shopwebdirectory.com/listings13112748/bip39-npm-https-linktr-ee-bip39-the-greatest-guide-to-bip39-checksum