Thankfully, in 2012 the developer Pieter Wuille established the BIP32 specification at the base with the hierarchical deterministic wallets. Together with it, Pieter created a mathematical functionality to make a learn crucial from which to derive all other keys in a very deterministic way. Various Wallets:If you manage several wallets, https://postheaven.net/tiablexcen/mastering-your-copyright-protection-the-essential-overview-to-bip39-passphrases