I took the index of the words, transformed the number to binary, extra 3 zeros, calculated the sha256 digest, took the initial Portion of the hexadecimal to transform it to binary, extra a few zeros into the 8 digits from the binary and bought 00000010011 which translates to 19 in https://thekiwisocial.com/story4273982/fascination-about-bip39-english-words