I took the index on the words, converted the number to binary, additional three zeros, calculated the sha256 digest, took the primary Element of the hexadecimal to convert it to binary, additional a few zeros towards the 8 digits in the binary and got 00000010011 which translates to 19 in https://naturalbookmarks.com/story18853757/examine-this-report-on-bip39-passphrase