Bip39 github https://files.fm/u/2eemhhak2q#design BIP85: A newer proposal allowing the deterministic derivation of a number of BIP39 mnemonic seeds from the master seed. Due to the cryptographic layout of BIP-39, a weak passphrase doesn't reduce the safety of the other wallets or assistance expose the seed words. The BIP39 word list https://extrabookmarking.com/story20616640/bip39-release-date-bip39-compatible-wallet-options-https-x-com-tundra838554