I took the index on the words, transformed the selection to binary, added three zeros, calculated the sha256 digest, took the very first A part of the hexadecimal to transform it to binary, extra a few zeros to the 8 digits of the binary and received 00000010011 which interprets to https://bookmarkerz.com/story19503925/getting-my-bip39-words-to-numbers-to-work