Bip39 passphrase github https://www.slideserve.com/lewarthbfp/getting-a-bip39-phrase-in-python-a-comprehensive-tutorial BIP85: A newer proposal permitting the deterministic derivation of several BIP39 mnemonic seeds from the grasp seed. For words that only have three letters, there isn't any 4th letter. One example is with the word “increase”, there aren't any much more letters Later ... https://mirrorbookmarks.com/story20150326/bip39-seed-phrase-a-simple-key-for-bip39-github-unveiled-https-x-com-tundra838554