Bip39 rules https://500px.com/p/alexzhiglatyxrnxb BIP85: A newer proposal letting the deterministic derivation of multiple BIP39 mnemonic seeds from the learn seed. As an example, when you at first put in place your wallet and created seed applying Ledger Nano S and want to Recuperate your wallet on a fresh Trezor T. https://bookmarkcitizen.com/story20004944/bip39-standard-a-simple-key-for-bip39-github-unveiled-https-linktr-ee-bip39