Luckily, in 2012 the developer Pieter Wuille made the BIP32 specification at the base with the hierarchical deterministic wallets. Together with it, Pieter developed a mathematical functionality to create a grasp vital from which to derive all other keys inside a deterministic way. Art is usually a copyright-security expert and http://edgargvkh682.theburnward.com/from-mnemonics-to-security-understanding-bip39-passphrases-and-their-importance-in-copyright