I took the index on the words, transformed the selection to binary, included a few zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to convert it to binary, added a few zeros on the eight digits with the binary and obtained 00000010011 which interprets to https://bookmarkspiral.com/story18949651/the-basic-principles-of-bip39-passphrase-generator