I took the index of the words, converted the selection to binary, added a few zeros, calculated the sha256 digest, took the very first A part of the hexadecimal to convert it to binary, additional 3 zeros on the eight digits with the binary and bought 00000010011 which interprets to https://bookmarksknot.com/story20563975/getting-my-bip39-words-to-numbers-to-work