Bip39 key https://blogfreely.net/travenmdoq/create-your-own-distinct-bip39-mnemonic-expression-with-python-scripts BIP85: A more recent proposal making it possible for the deterministic derivation of many BIP39 mnemonic seeds from a learn seed. This extra complexity improves the chance of misplacing the passphrase, and therefore losing your copyright. Exploration by blockchain securit... https://penzu.com/p/2ea6922b70254307