I took the index of the words, transformed the number to binary, additional three zeros, calculated the sha256 digest, took the primary part of the hexadecimal to transform it to binary, additional 3 zeros for the eight digits from the binary and got 00000010011 which interprets to 19 in decimal. https://easiestbookmarks.com/story19068330/examine-this-report-on-bip39-passphrase