Bip39 hardware wallet https://collinmmss433.lucialpiazzale.com/from-concept-to-fact-generating-bitcoin-addresses-with-bip39 BIP85: A more moderen proposal permitting the deterministic derivation of many BIP39 mnemonic seeds from the learn seed. Thanks to the cryptographic structure of BIP-39, a weak passphrase doesn't reduce the protection of the other wallets or help expose the seed ... https://explorebookmarks.com/story20519210/bip39-format-example-an-unbiased-view-of-bip39-2048-words-https-cutt-ly-uryc5rw7