I took the index from the words, transformed the selection to binary, additional a few zeros, calculated the sha256 digest, took the very first Component of the hexadecimal to transform it to binary, additional three zeros to your 8 digits of your binary and received 00000010011 which interprets to 19 https://yxzbookmarks.com/story19008843/little-known-facts-about-bip39-seed-phrase-list