I took the index of your words, converted the number to binary, additional a few zeros, calculated the sha256 digest, took the first Component of the hexadecimal to transform it to binary, additional 3 zeros towards the eight digits from the binary and received 00000010011 which interprets to 19 in https://hubwebsites.com/story20116056/the-definitive-guide-to-bip39-seed-phrase