I took the index of the words, converted the amount to binary, additional a few zeros, calculated the sha256 digest, took the initial Element of the hexadecimal to convert it to binary, added three zeros for the 8 digits of the binary and acquired 00000010011 which interprets to 19 in https://hypebookmarking.com/story18602790/facts-about-bip39-seed-phrase-github-revealed