Bip 39 index https://squareblogs.net/edelinepge/using-python-to-produce-a-bip39-mnemonic-a-developers-point-of-view BIP85: A newer proposal allowing for the deterministic derivation of multiple BIP39 mnemonic seeds from a learn seed. Thanks to the cryptographic design of BIP-39, a weak passphrase will not reduce the safety of the other wallets or assist expose the seed words. but it i... https://hubpages.com/@lefwenuuyr