I took the index of the words, converted the number to binary, added 3 zeros, calculated the sha256 digest, took the primary Section of the hexadecimal to convert it to binary, additional 3 zeros on the 8 digits in the binary and received 00000010011 which translates to 19 in decimal. https://socialbookmarkgs.com/story18967180/a-review-of-bip39-passphrase